Oil pressure pulsation buffer

Abstract

The utility model discloses an oil pressure pulsation buffer, and relates to the technical field of pulsation buffers. The device comprises a buffer cavity, a damper body, conveying pipes, one-way pressure valves and a cleaning assembly, the damper body is fixed to the top end of the buffer cavity, the conveying pipes are symmetrically and fixedly communicated with the peripheral side of the buffer cavity, the one-way pressure valves are fixed to the lower portion of the peripheral side of the buffer cavity in a penetrating mode, and the cleaning assembly comprises a movable rod, a limiting disc and a hard sponge strip. The movable rod is inserted into the bottom end of the buffering cavity in a penetrating mode, limiting discs are fixed to the periphery of the movable rod in the buffering cavity and the periphery of the movable rod at the bottom end, and hard sponge strips are fixed to the periphery of the limiting disc in the buffering cavity in an annular array mode. Through the arrangement of the buffer cavity, the damper body, the conveying pipe, the one-way pressure valve and the cleaning assembly, the problems that the pulsating buffer is not good enough in applicability to overhigh oil liquid pressure when working, and impurities deposited at the bottom of the buffer are not prone to being washed away along with oil liquid when the impurities in the buffer are cleaned are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulsation buffers, in particular to an oil pressure pulsation buffer. Background Art

[0002] A pulsation buffer is a device used to reduce pressure pulsation and flow pulsation in a fluid system. It is used to slow down the pressure pulsation of automobile fuel pipelines, reduce noise, and improve engine performance. In various industrial fluid delivery systems, such as chemical, pharmaceutical, and food processing industries, it is used to protect downstream equipment, reduce pipeline vibration and damage, and extend equipment life. It is used in systems that measure pulsating pressure, such as diesel locomotive fuel pump pressure measurement, to buffer pulsating pressure, protect pressure gauges and other instruments, improve measurement accuracy, and extend service life. However, it still has the following disadvantages in actual use:

[0003] When the pulsation buffer is working, it directly reduces the pressure change amplitude in the oil delivery by inputting the pressure pulser. However, when the oil pressure is too high, it is easy to cause the equipment using the oil to malfunction, which is easy to cause safety hazards during work.

[0004] When the pulsation buffer is working, after a certain period of use, certain impurities will be deposited in the buffer, which needs to be flushed with flushing oil. During the flushing process, the impurities deposited at the bottom of the buffer are not easily washed away with the oil, affecting the cleaning effect. Utility Model Content

[0005] The utility model aims to provide an oil pressure pulsation buffer, which solves the problem that the pulsation buffer is not well adapted to excessive oil pressure when working, and the impurities deposited at the bottom of the buffer are not easily washed away with the oil when cleaning the impurities in the buffer, by arranging a buffer chamber, a damper body, a delivery pipe, a one-way pressure valve and a cleaning component.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is an oil pressure pulsation buffer, comprising a buffer chamber, a damper body, a delivery pipe, a one-way pressure valve and a cleaning component, wherein the damper body is fixed at the top of the buffer chamber, the delivery pipe is symmetrically fixedly connected to the peripheral side of the buffer chamber, a cleaning pipe is fixed to the middle of the peripheral side of the delivery pipe, a one-way pressure valve is fixed through the lower part of the peripheral side of the buffer chamber, the bottom end of the buffer chamber is movably connected to the cleaning component, the cleaning component comprises a movable rod, a limiting disk and a hard sponge strip, the movable rod is inserted through the bottom end of the buffer chamber, and the limiting plate is fixed inside the buffer chamber and around the movable rod at the bottom end The limiting disk in the buffer cavity is fixed with hard sponge strips in an annular array on the circumference of the limiting disk. When working, the liquid entering the buffer cavity is transferred, and a part of the impact energy of the oil is absorbed by the damper body to reduce the high-pressure impact of the oil. The pulse low pressure of the oil delivery is compensated by the cooperation of the piston and the compression spring. The oil is delivered to the buffer cavity through the delivery pipe. When the pressure in the buffer cavity is too high, the oil is temporarily discharged through the one-way pressure valve to prevent the oil in the buffer cavity from being too high. When the cleaning component rotates, it sweeps the precipitated impurities in the buffer cavity so that the impurities are discharged together with the flushing oil.

[0008] Furthermore, the central axis of the delivery pipe and the central axis of the one-way pressure valve are perpendicular to each other, connecting holes are provided at positions corresponding to the two delivery pipes on the circumference of the buffer cavity, and a fixing hole is provided at a position corresponding to the input end of the buffer cavity and the input end of the one-way pressure valve. The input end of the one-way pressure valve is fixed in the fixing hole. When the delivery pipe is working, it is connected with the delivery pipe through the connecting hole, and the buffer cavity fixes the one-way pressure valve through the fixing hole.

[0009] Furthermore, a fixing frame is fixed to the lower part of the peripheral side of the buffer cavity, and a movable hole is opened at the top of the buffer cavity. When the buffer cavity is working, it is fixedly supported on the external mounting structure by the fixing frame and is movably connected to the telescopic rod through the movable hole.

[0010] Furthermore, a telescopic rod is fixed to the telescopic end of the damper body, and the telescopic rod is movably connected in the movable hole. A piston is fixed to the bottom end of the telescopic rod, and the piston is movably connected in the buffer cavity. The height of the delivery pipe is lower than the height of the bottom end of the piston. A compression spring is fixed to the outside of the telescopic rod at the top of the piston, and the top of the compression spring is fixed to the inner top of the buffer cavity. When the damper body is working, the piston is connected through the telescopic rod, and the compression spring cooperates to compensate for the high and low pressure of the oil delivery, thereby increasing the oil delivery stability.

[0011] Furthermore, an electrically controlled valve 1 is fixed on the peripheral side of one end of the delivery pipe away from the buffer chamber, and an electrically controlled valve 2 is fixed on the peripheral side of the cleaning pipe. When the delivery pipe is working, the delivery on and off is controlled by the electrically controlled valve 1, and the delivery on and off of the cleaning pipe is controlled by the electrically controlled valve 2.

[0012] Furthermore, the cleaning assembly also includes a rotating rod, the bottom end of the movable rod is fixed with the rotating rod, the two limiting plates are respectively in contact with the bottom and bottom end surface of the buffer cavity, and the cleaning assembly is rotated by the rotating rod to drive the movable rod to rotate.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem that the pulsation buffer is not well adapted to excessive oil pressure when working by arranging a buffer chamber, a damper body, a delivery pipe and a one-way pressure valve. When the oil is delivered to the connecting hole on the buffer chamber through a delivery pipe and enters the buffer chamber, and after passing through the buffer chamber, it is delivered to another delivery pipe and output to subsequent oil-using equipment, when the oil pressure fluctuates, the fluctuation of the oil pressure drives the piston to rise and fall, and the pressure of the oil passing through the buffer chamber is maintained stable through the cooperation of the compression spring. Under the action of the damper body, the impact of vibration is reduced. When the oil pressure in the buffer chamber is too high, the one-way pressure valve is opened to prevent the oil pressure in the buffer chamber from being too high, so that the pulsation buffer is better adapted to excessive oil pressure when working.

[0015] The utility model solves the problem that impurities deposited on the bottom of the buffer are not easily washed away with oil when cleaning impurities in the buffer by arranging a buffer chamber, a delivery pipe and a cleaning component. The flushing oil enters the delivery pipe through a cleaning pipe, is delivered to the buffer chamber through a delivery pipe, and at the same time, the rotating rod is rotated to drive the movable rod to rotate. The rotation of the movable rod drives the limiting disk and the hard sponge strip to rotate. When the hard sponge strip rotates, the impurities precipitated at the bottom of the buffer chamber are fully turned over, mixed with the flushing oil, and delivered to the delivery pipe through another connecting hole. After entering the cleaning pipe, they are discharged. When cleaning impurities in the buffer, the impurities deposited on the bottom of the buffer can be taken away with the flushing oil, and the buffer chamber is cleaned more cleanly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional diagram of the assembly structure of an oil pressure pulsation buffer;

[0018] Figure 2 It is a three-dimensional diagram of the buffer cavity structure;

[0019] Figure 3 It is a three-dimensional diagram of the main structure of the damper;

[0020] Figure 4 It is a three-dimensional diagram of the conveying pipe structure;

[0021] Figure 5 It is a three-dimensional diagram of the one-way pressure valve structure;

[0022] Figure 6 This is a three-dimensional diagram of the cleaning component structure.

[0023] Reference numerals:

[0024] 1. Buffer chamber; 101. Connecting hole; 102. Fixed hole; 103. Fixed frame; 104. Movable hole; 2. Damper body; 201. Telescopic rod; 202. Compression spring; 203. Piston; 3. Delivery pipe; 301. Electric control valve 1; 302. Cleaning pipe; 303. Electric control valve 2; 4. One-way pressure valve; 5. Cleaning assembly; 501. Rotating rod; 502. Movable rod; 503. Limiting disk; 504. Hard sponge strip. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0026] See also Figure 1-5The utility model is an oil pressure pulsation buffer, comprising a buffer chamber 1, a damper body 2, a delivery pipe 3, a one-way pressure valve 4 and a cleaning assembly 5. The damper body 2 is fixed at the top of the buffer chamber 1. After the oil enters the buffer chamber 1 through the delivery pipe 3, it is discharged through another delivery pipe 3 and is transferred and transported through the buffer chamber 1. The buffer chamber 1 is symmetrically fixed with delivery pipes 3 on its periphery. One end of the two delivery pipes 3 away from the buffer chamber 1 is respectively connected to the pipelines for inputting and outputting the oil. The oil is transported into and out of the buffer chamber 1 through the delivery pipe 3. A cleaning pipe 302 is fixed at the middle of the periphery of the delivery pipe 3. The top ends of the two cleaning pipes 302 are respectively connected to the equipment for inputting flushing oil and receiving flushing oil. The flushing oil is transported into and out of the buffer chamber 1 through the cleaning pipe 302. The lower part of the periphery of the buffer chamber 1 is fixed with The one-way pressure valve 4 is used to discharge the liquid in the buffer chamber 1 in one direction. The bottom end of the buffer chamber 1 is movably connected with a cleaning component 5. When the cleaning component 5 is working, the bottom of the buffer chamber 1 is cleaned. The cleaning component 5 includes a movable rod 502, a limiting disk 503 and a hard sponge strip 504. The movable rod 502 is inserted into the bottom end of the buffer chamber 1. The limiting disk 503 is fixed around the movable rod 502 inside the buffer chamber 1 and at the bottom. The hard sponge strip 504 is fixed around the limiting disk 503 in the buffer chamber 1 in a circular array. When the movable rod 502 rotates, the two limiting disks 503 are driven to rotate. When the hard sponge strip 504 rotates, the impurities deposited on the bottom of the buffer chamber 1 are swept away, so that the impurities are mixed with the oil and transported to the cleaning pipe 302 along with the flushing oil.

[0027] Specifically, the central axis of the delivery pipe 3 and the central axis of the one-way pressure valve 4 are perpendicular to each other, connecting holes 101 are opened at positions corresponding to the two delivery pipes 3 on the circumference of the buffer chamber 1, and fixed holes 102 are opened at positions corresponding to the buffer chamber 1 and the input end of the one-way pressure valve 4. The input end of the one-way pressure valve 4 is fixed in the fixed hole 102, the buffer chamber 1 is connected with the delivery pipe 3 through the connecting hole 101, and is connected with the input end of the one-way pressure valve 4 through the fixed hole 102, and the output end of the one-way pressure valve 4 is connected with a device for returning excess oil.

[0028] Furthermore, a fixing frame 103 is fixed to the lower part of the side of the buffer chamber 1, and a movable hole 104 is opened at the top of the buffer chamber 1. When the buffer chamber 1 is working, it is installed with an external mounting structure through the fixing frame 103, and the telescopic rod 201 is movably connected through the movable hole 104.

[0029] Furthermore, a telescopic rod 201 is fixed to the telescopic end of the damper body 2, and the telescopic rod 201 is movably connected in the movable hole 104. A piston 203 is fixed to the bottom end of the telescopic rod 201, and the piston 203 is movably connected in the buffer chamber 1. The height of the delivery pipe 3 is lower than the height of the bottom end of the piston 203. A compression spring 202 is fixed to the outside of the telescopic rod 201 at the top of the piston 203, and the top of the compression spring 202 is fixed to the inner top of the buffer chamber 1. The damper body 2 is connected to the piston 203 through the telescopic rod 201. When oil enters the buffer chamber 1 and the oil pressure fluctuates, the pressure is transmitted to the buffer chamber 1, driving the piston 203 to rise and fall. Through the rise and fall of the piston 203, with the cooperation of the compression spring 202 and the damper body 2, the pressure fluctuation of the oil during transportation is reduced.

[0030] The operation process of this embodiment is as follows: when working, when the oil is delivered to the connecting hole 101 on the buffer chamber 1 through a delivery pipe 3 and enters the buffer chamber 1, and after passing through the buffer chamber 1, it is delivered to another delivery pipe 3 and output to the subsequent oil-using equipment. When the oil pressure fluctuates, the fluctuation of the oil pressure drives the piston 203 to rise and fall. Through the cooperation of the compression spring 202, the oil pressure passing through the buffer chamber 1 is maintained stable. Under the action of the damper body 2, the impact of vibration is reduced. When the oil pressure in the buffer chamber 1 is too high, the one-way pressure valve 4 is opened to prevent the oil pressure in the buffer chamber 1 from being too high. Specific embodiment 2

[0031] See also Figure 1 , 2 , 4, 6, on the basis of the specific embodiment 1, an electric-controlled valve 301 is fixed on the peripheral side of one end of the delivery pipe 3 away from the buffer chamber 1, and an electric-controlled valve 2 303 is fixed on the peripheral side of the cleaning pipe 302. When the delivery pipe 3 is working, the delivery is controlled by the electric-controlled valve 1 301, and the delivery of flushing oil is controlled by the electric-controlled valve 2 303 in the cleaning pipe 302.

[0032] Specifically, the cleaning assembly 5 also includes a rotating rod 501, and the bottom end of the movable rod 502 is fixed with the rotating rod 501. The two limiting plates 503 are respectively abutted against the bottom and the bottom end surface of the buffer chamber 1. When the cleaning assembly 5 is working, the movable rod 502 is driven to rotate by rotating the rotating rod 501.

[0033] The operation process of this embodiment is as follows: during operation, when the buffer chamber 1 needs to clean the sediment produced at the bottom of the buffer chamber 1 after being used for a long time, the two electrically controlled valves 1 301 are closed, and then the two electrically controlled valves 2 303 are opened, so that the flushing oil enters the delivery pipe 3 through a cleaning pipe 302, and is delivered to the buffer chamber 1 through a delivery pipe 3. At the same time, the rotating rod 501 is rotated to drive the movable rod 502 to rotate. Through the rotation of the movable rod 502, the limiting disk 503 and the hard sponge strip 504 are driven to rotate. When the hard sponge strip 504 rotates, the impurities precipitated at the bottom of the buffer chamber 1 are fully turned over, mixed with the flushing oil, and delivered to the delivery pipe 3 through another connecting hole 101, and discharged after entering the cleaning pipe 302. After completion, the rotating rod 501 is stopped, the two electrically controlled valves 2 303 are closed, and the two electrically controlled valves 1 301 are opened to resume work.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An oil pressure pulsation buffer, comprising a buffer chamber (1), a damper body (2), a delivery pipe (3), a one-way pressure valve (4) and a cleaning assembly (5), characterized in that: A damper body (2) is fixed to the top of the buffer chamber (1); a delivery pipe (3) is symmetrically fixedly connected to the circumference of the buffer chamber (1); a cleaning pipe (302) is fixed to the middle of the circumference of the delivery pipe (3); a one-way pressure valve (4) is fixed through the lower part of the circumference of the buffer chamber (1); a cleaning assembly (5) is movably connected through the bottom of the buffer chamber (1); the cleaning assembly (5) comprises a movable rod (502), a limiting disk (503) and a hard sponge strip (504); the movable rod (502) is inserted through the bottom of the buffer chamber (1); limiting disks (503) are fixed to the circumference of the movable rod (502) inside the buffer chamber (1) and at the bottom; and hard sponge strips (504) are fixed to the circumference of the limiting disk (503) in the buffer chamber (1) in a circular array.

2. The oil pressure pulsation damper according to claim 1, characterized in that: The central axis of the delivery pipe (3) and the central axis of the one-way pressure valve (4) are perpendicular to each other; the positions on the circumference of the buffer chamber (1) corresponding to the two delivery pipes (3) are both provided with connecting holes (101); the positions of the buffer chamber (1) corresponding to the input end of the one-way pressure valve (4) are provided with fixing holes (102); the input end of the one-way pressure valve (4) is fixed in the fixing holes (102).

3. The oil pressure pulsation buffer according to claim 1, characterized in that: A fixing frame (103) is fixed to the lower part of the peripheral side of the buffer cavity (1), and a movable hole (104) is opened at the top of the buffer cavity (1).

4. The oil pressure pulsation damper according to claim 3, characterized in that: A telescopic rod (201) is fixed to the telescopic end of the damper body (2), the telescopic rod (201) is movably connected in the movable hole (104), a piston (203) is fixed to the bottom end of the telescopic rod (201), the piston (203) is movably connected in the buffer chamber (1), the height of the delivery pipe (3) is lower than the height of the bottom end of the piston (203), a compression spring (202) is fixed to the outside of the telescopic rod (201) at the top end of the piston (203), and the top end of the compression spring (202) is fixed to the inner top of the buffer chamber (1).

5. The oil pressure pulsation damper according to claim 1, characterized in that: An electric control valve 1 (301) is fixed to the peripheral side of one end of the delivery pipe (3) away from the buffer chamber (1), and an electric control valve 2 (303) is fixed to the peripheral side of the cleaning pipe (302).

6. The oil pressure pulsation damper according to claim 1, characterized in that: The cleaning assembly (5) further comprises a rotating rod (501), the bottom end of the movable rod (502) being fixed with the rotating rod (501), and the two limiting plates (503) respectively abut against the bottom and bottom end surface of the buffer chamber (1).

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