Hydraulic pipeline flushing, pressure maintaining and filtering device

By adding the oil return components of snake tubes, fins and through holes in the hydraulic pipeline flushing filter device, and the cushioning components using damping sleeves and shock absorbing springs, the problems of unsatisfactory heat dissipation and loose connections of existing devices are solved, and more efficient heat dissipation and stable hydraulic pipeline connections are achieved.

CN222633559UActive Publication Date: 2025-03-18XINXIANG PINGFEI FILTER
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Patent Information

Application Number
CN202423265813.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-18
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The heat dissipation effect of the existing hydraulic pipeline flushing and pressure-keeping filter device is not ideal, and the vibration of the high-pressure oil pump and the low-pressure oil pump will cause the connection between the hydraulic pipeline and the device to be loose, affecting the flushing and pressure-keeping and filtration work.

Method used

By setting a snake tube, fins and through holes in the oil return assembly to increase the contact area between the hydraulic oil and the snake tube, and further increasing the contact area through the atomizing nozzle to improve the heat dissipation effect; in the cushioning assembly, the half-collar ring is cushioned to avoid falling off the hydraulic pipeline caused by excessive vibration.

Benefits of technology

The heat dissipation effect of hydraulic oil is improved, the practicality of the device is enhanced, and the connection between the hydraulic pipeline and the device is stabilized through the cushioning assembly, avoiding the problem of falling off due to vibration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hydraulic pipeline flushing, pressure maintaining and filtering device, and relates to the technical field of hydraulic pipelines. The shock absorber comprises a shell, an oil tank is fixedly connected to the bottom of the inner side of the shell, an oil conveying assembly and an oil return assembly are arranged on the two sides of the upper portion in the shell respectively, and shock absorption assemblies are further arranged on the two sides of the front end face of the shell. The oil return assembly comprises a heat dissipation box fixedly connected to the top of the oil tank, and an oil outlet pipe penetrates through the rear end face of the heat dissipation box. The contact area of hydraulic oil and the coiled pipe is increased through the fins and the through holes on the coiled pipe, and the contact area of the hydraulic oil and the coiled pipe is further increased through the atomizing nozzles on the first oil return pipe, so that the problem of poor heat dissipation capacity in the prior art is solved; and meanwhile, shock absorption is conducted on the semi-lantern rings through the matching effect of damping liquid in the damping sleeves and the damping springs, shock absorption is conducted on the connecting positions of the hydraulic pipelines through the lantern rings, and the problem that in the prior art, the hydraulic pipelines fall off due to too large vibration cannot be avoided conveniently is solved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic pipelines, in particular to a hydraulic pipeline flushing, pressure-maintaining and filtering device. Background Art

[0002] Hydraulic pipeline is one of the important components of hydraulic equipment. It is mainly used to realize the transportation and guidance of hydraulic oil. In the long-term use of hydraulic pipeline, in order to avoid blockage of hydraulic pipeline, it is usually necessary to flush it. In order to facilitate the flushing of hydraulic pipeline, flushing and pressure-maintaining filtering device is generally used.

[0003] The existing hydraulic pipeline flushing and pressure-maintaining filtering device is usually composed of a housing, an oil tank, a high-pressure oil pump, a low-pressure oil pump, a filter and a radiator. The high-pressure oil pump is used to maintain the pressure of the hydraulic pipeline, the low-pressure oil pump is used to flush the hydraulic pipeline, and the filter is used to filter the hydraulic pipeline. At the same time, the radiator is used to cool the hydraulic oil returning to the oil tank to avoid the hydraulic oil temperature being too high and affecting the circulation of the hydraulic oil.

[0004] However, it still has the following disadvantages in actual use:

[0005] In the above-mentioned hydraulic pipeline flushing and pressure-maintaining filtering device, the radiator is installed at the end of the return pipeline of the hydraulic oil, and the hydraulic oil is cooled by the heat exchange tube in the radiator. However, due to its small heat dissipation area, its heat dissipation effect is not ideal and its heat dissipation capacity is poor.

[0006] The hydraulic pipeline flushing, pressure maintaining and filtering device mentioned above, its high-pressure oil pump and low-pressure oil pump are connected to the hydraulic pipeline through a hose. However, when the high-pressure oil pump and the low-pressure oil pump transport hydraulic oil to the hydraulic pipeline, the hose will cause vibration. Excessive vibration will cause the connection between the hose and the hydraulic pipeline to loosen, thereby affecting the flushing, pressure maintaining and filtering work of the hydraulic pipeline.

[0007] To this end, we provide a hydraulic pipeline flushing pressure maintaining filtering device to solve the above problems. Utility Model Content

[0008] The utility model aims to provide a hydraulic pipeline flushing and pressure-maintaining filtering device, which increases the contact area between the hydraulic oil and the serpentine tube by means of fins and through holes on the serpentine tube, and further increases the contact area between the hydraulic oil and the serpentine tube by means of an atomizing nozzle on a first oil return pipe, thereby solving the existing problem of poor heat dissipation capacity, and at the same time, through the coordinated action of the damping liquid in the damping sleeve and the shock-absorbing spring, the half ring is damped, and through the ring, the connection of the hydraulic pipeline is damped, thereby solving the existing problem of the inconvenience in avoiding the hydraulic pipeline from falling off due to excessive vibration.

[0009] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0010] The utility model is a hydraulic pipeline flushing and pressure-maintaining filtering device, comprising a shell, the inner bottom of the shell is fixedly connected to an oil tank, the upper two sides of the shell are respectively provided with an oil delivery component and an oil return component, and the front end surface of the shell is also provided with a shock absorbing component on both sides;

[0011] The oil return assembly includes a heat sink fixedly connected to the top of the oil tank, an oil outlet pipe runs through the rear end surface of the heat sink, refrigeration boxes are fixedly connected to the outer walls of both sides of the heat sink, semiconductor refrigeration plates are embedded and fixed on the outer wall of the refrigeration box on the side away from the heat sink, a plurality of serpentine tubes are fixedly connected to the inside of the heat sink, the two ends of the serpentine tubes extend to the inner sides of the two refrigeration boxes respectively, a section of the serpentine tube located on the inner side of the heat sink is sleeved with fins, a plurality of through holes are evenly opened on the surface of the fins, a first oil return pipe runs through the front end surface of the heat sink, one end of the first oil return pipe located on the inner side of the heat sink is fixedly connected to an atomizing nozzle, one end of the first oil return pipe located on the outer side of the heat sink is fixedly connected to a second filter, the liquid inlet end of the second filter is fixedly connected to a second oil return pipe, and the end of the second oil return pipe away from the second filter is fixedly connected to a second hose;

[0012] The shock-absorbing assembly includes an installation frame fixedly connected to both sides of the front end surface of the shell through an L-shaped frame, half rings are movably connected to the upper and lower parts of the interior of the installation frame, and damping sleeves are fixedly connected to the top and bottom center positions of the installation frame. A connecting rod is provided inside the damping sleeve, and one end of the connecting rod is located on the outside of the damping sleeve and is fixedly connected to the end faces of the half rings that are away from each other, and a shock-absorbing spring is provided on the outside of the connecting rod.

[0013] The utility model is further configured as follows: the oil delivery component includes a high-pressure oil pump and a low-pressure oil pump which are respectively fixedly connected to both sides of the rear end of the shell through a mounting frame, the oil inlet ends of the high-pressure oil pump and the low-pressure oil pump are fixedly connected to an oil inlet pipe, the oil outlet end of the high-pressure oil pump is fixedly connected to a first oil delivery pipe, the front end of the first oil delivery pipe is fixedly connected to a first filter, the oil outlet end of the first filter is fixedly connected to a second oil delivery pipe, the front end of the second oil delivery pipe is fixedly connected to a first hose, the oil outlet end of the low-pressure oil pump is fixedly connected to a third oil delivery pipe, and one end of the third oil delivery pipe away from the low-pressure oil pump is fixedly connected to the first oil delivery pipe.

[0014] The utility model is further configured as follows: a control panel is fixedly embedded on the upper side of the outer wall of one side of the shell, a first device door is movably connected to the lower side of the outer wall of one side of the shell, a second device door is movably connected to one side of the front end surface of the shell, and pulleys are fixedly connected to the bottom of the shell all around.

[0015] The utility model is further configured as follows: a particle counter is fixedly connected to one side of the second filter, the oil inlet end of the particle counter is fixedly connected to a first connecting pipe, an end of the first connecting pipe away from the particle counter is fixedly connected to the second oil return pipe, an oil outlet end of the particle counter is fixedly connected to a second connecting pipe, and an end of the second connecting pipe away from the particle counter passes through the top of the oil tank and extends to the lower inner side of the oil tank.

[0016] The utility model is further configured as follows: fixing rods are fixedly connected to both sides of the top of the installation frame, the top ends of the fixing rods pass through the longitudinal arms of the L-shaped frame and are threadedly sleeved with fastening nuts, and the vertical arms of the L-shaped frame are fixedly connected to the front end surface of the shell.

[0017] The utility model is further configured as follows: ear seats are fixedly connected to the outer walls on both sides of the half ring, the upper and lower adjacent ear seats are fixedly connected by stud bolts, and the side of the ear seat away from the half ring is movably connected to the inner wall of the installation frame.

[0018] The utility model is further configured as follows: slide grooves are vertically opened on the inner walls on both sides of the installation frame, and sliders are fixedly connected to the outer wall of the ear seat away from the half ring, and the free ends of the sliders are movably connected to the inside of the slide grooves.

[0019] The utility model is further configured as follows: one end of the connecting rod located inside the damping sleeve is fixedly connected to a piston plate, and the outer side surface of the piston plate is fitted on the inner side surface of the damping sleeve.

[0020] The utility model has the following beneficial effects:

[0021] The utility model provides an oil return assembly, and the hydraulic oil in the hydraulic pipeline enters the second filter through the second hose and the second oil return pipe in sequence for filtration, and the filtered hydraulic oil enters the first oil return pipe, and the hydraulic oil is atomized and sprayed in the heat dissipation box through the atomizing nozzle, thereby increasing the contact area between the hydraulic oil and the serpentine tube, and at the same time, the serpentine tube further increases the contact area with the hydraulic oil through fins and through holes, thereby improving the heat dissipation effect of the serpentine tube on the hydraulic oil, facilitating the rapid heat dissipation of the refluxed hydraulic oil, and improving its practicability.

[0022] The utility model provides a damping component, and the interior of the damping sleeve is filled with damping liquid. When the connection between the hydraulic pipeline and the device vibrates, the half ring drives the damping spring to elastically deform, and the vibration energy of the half ring is converted into the kinetic potential energy of the connecting rod by the damping spring. At the same time, the kinetic potential energy of the connecting rod is consumed by the damping liquid in the damping sleeve, thereby achieving damping of the connection between the hydraulic pipeline and the device, avoiding the hydraulic pipeline from falling off due to excessive vibration, facilitating the flushing, pressure maintaining and filtering of the hydraulic pipeline, and further improving its practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the overall structure of the hydraulic pipeline flushing pressure-maintaining filtering device.

[0025] Figure 2 It is a structural schematic diagram of the shell of the utility model.

[0026] Figure 3 It is a structural schematic diagram of the oil delivery component of the utility model.

[0027] Figure 4 It is a structural schematic diagram of the oil return component of the utility model.

[0028] Figure 5 This is a structural disassembly diagram of the heat dissipation box of the utility model.

[0029] Figure 6 It is a structural schematic diagram of the serpentine tube of the utility model.

[0030] Figure 7 It is a structural schematic diagram of the shock absorbing component of the utility model.

[0031] Figure 8 The utility model is a schematic diagram of the installation of the installation frame and the L-shaped frame.

[0032] Fig. 9 It is a structural schematic diagram of the half ring of the utility model.

[0033] Fig.10 This is a structural disassembly diagram of the damping sleeve, connecting rod and shock-absorbing spring of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1-housing, 101-oil tank, 102-control panel, 103-first equipment door, 104-second equipment door, 105-pulley, 2-oil delivery assembly, 201-high-pressure oil pump, 202-low-pressure oil pump, 203-mounting frame, 204-oil inlet pipe, 205-first oil delivery pipe, 206-first filter, 207-second oil delivery pipe, 208-first hose, 209-third oil delivery pipe, 3-oil return assembly, 301-heat sink, 301a-oil outlet pipe, 302-refrigeration box, 303-semiconductor refrigeration sheet, 304-serpentine pipe, 304a-fin, 304b- Through hole, 305-first oil return pipe, 305a-atomizing nozzle, 306-second filter, 307-second oil return pipe, 308-second hose, 309-particle counter, 309a-first connecting pipe, 309b-second connecting pipe, 4-shock absorbing assembly, 401-installing frame, 401a-fixing rod, 401b-fastening nut, 401c-slide, 402-L-shaped frame, 403-half ring, 403a-ear seat, 403b-stud bolt, 403c-slider, 404-damping sleeve, 405-connecting rod, 405a-piston plate, 406-shock absorbing spring. DETAILED DESCRIPTION

[0036] 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. Example 1

[0037] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it is the first embodiment of the utility model, which provides a hydraulic pipeline flushing and pressure-maintaining filtering device, including a shell 1, the inner bottom of the shell 1 is fixedly connected to an oil tank 101, and the two sides above the inside of the shell 1 are respectively provided with an oil delivery component 2 and an oil return component 3, and the oil return component 3 includes a heat dissipation box 301, a refrigeration box 302, a semiconductor refrigeration plate 303, a serpentine tube 304, a first oil return pipe 305, a second filter 306, a second oil return pipe 307 and a second hose 308. The contact area between the hydraulic oil and the serpentine tube 304 is increased by the fins 304a and the through holes 304b on the serpentine tube 304, and the contact area between the hydraulic oil and the serpentine tube 304 is further increased by the atomizing nozzle 305a on the first oil return pipe 305, thereby solving the problem of poor heat dissipation capacity of the existing system.

[0038] Specifically, the heat sink 301 is fixedly connected to the top of the oil tank 101, and an oil outlet pipe 301a runs through the rear end surface of the heat sink 301. The end of the oil outlet pipe 301a away from the heat sink 301 runs through the top of the oil tank 101 and extends to the lower inner side of the oil tank 101. The outer walls of both sides of the heat sink 301 are fixedly connected to the refrigeration box 302, and water is stored in the refrigeration box 302. The outer wall of the refrigeration box 302 away from the heat sink 301 is embedded with a semiconductor refrigeration sheet 303. The heating end of the semiconductor refrigeration sheet 303 is located on the outside of the refrigeration box 302, and the cooling end of the semiconductor is located on the outside of the refrigeration box 302. 2, the inside of the heat sink 301 is fixedly connected with a plurality of serpentine tubes 304, the two ends of the serpentine tubes 304 respectively extend to the inner sides of the two refrigeration boxes 302, a section of the serpentine tubes 304 located on the inner side of the heat sink 301 is sleeved with fins 304a, and a plurality of through holes 304b are evenly opened on the surface of the fins 304a, a first oil return pipe 305 runs through the front end surface of the heat sink 301, one end of the first oil return pipe 305 located on the inner side of the heat sink 301 is fixedly connected with an atomizing nozzle 305a, and one end of the first oil return pipe 305 located on the outer side of the heat sink 301 is fixedly connected with a second filter 306, and the first oil return pipe 305 is fixedly connected with a second filter 306. The liquid inlet end of the second filter 306 is fixedly connected to a second oil return pipe 307, and the end of the second oil return pipe 307 away from the second filter 306 is fixedly connected to a second hose 308. The heat sink 301 is used to cool and dissipate the hydraulic oil returning to the oil tank 101, and the oil outlet pipe 301a is used to guide the hydraulic oil in the heat sink 301 into the oil tank 101. The refrigeration box 302 is used to increase cold water to the serpentine tube 304. The semiconductor refrigeration sheet 303 is used to cool the water in the refrigeration box 302. The serpentine tube 304 is used to cool the hydraulic oil flowing through the heat sink 301. For cooling and heat dissipation, the fins 304a and the through holes 304b are provided to increase the contact area between the serpentine tube 304 and the hydraulic oil. The first oil return pipe 305 is provided to introduce the hydraulic oil into the heat dissipation box 301. The atomizing nozzle 305a is provided to atomize the hydraulic oil, thereby further increasing the contact area between the hydraulic oil and the serpentine tube 304. The second filter 306 is provided to filter the hydraulic oil returning to the oil tank 101. The second oil return pipe 307 and the second hose 308 are provided to connect to an external hydraulic pipeline, thereby realizing the return of the hydraulic oil in the hydraulic pipeline to the oil tank 101.

[0039] Further, the oil delivery assembly 2 includes a high-pressure oil pump 201 and a low-pressure oil pump 202 respectively fixedly connected to both sides of the rear end of the housing 1 through a mounting frame 203, the oil inlet ends of the high-pressure oil pump 201 and the low-pressure oil pump 202 are fixedly connected to an oil inlet pipe 204, the oil outlet end of the high-pressure oil pump 201 is fixedly connected to a first oil delivery pipe 205, the front end of the first oil delivery pipe 205 is fixedly connected to a first filter 206, the oil outlet end of the first filter 206 is fixedly connected to a second oil delivery pipe 207, the front end of the second oil delivery pipe 207 is fixedly connected to a first hose 208, the oil outlet end of the low-pressure oil pump 202 is fixedly connected to a third oil delivery pipe 209, and the end of the third oil delivery pipe 209 away from the low-pressure oil pump 202 is fixedly connected to the first oil delivery pipe 205;

[0040] A control panel 102 is fixedly mounted on the upper side of the outer wall of one side of the housing 1, a first device door 103 is movably connected to the lower side of the outer wall of one side of the housing 1, a second device door 104 is movably connected to one side of the front face of the housing 1, and pulleys 105 are fixedly connected to the bottom of the housing 1 on all sides;

[0041] A particle counter 309 is fixedly connected to one side of the second filter 306, and the oil inlet end of the particle counter 309 is fixedly connected to the first connecting pipe 309a, and the end of the first connecting pipe 309a away from the particle counter 309 is fixedly connected to the second oil return pipe 307, and the oil outlet end of the particle counter 309 is fixedly connected to the second connecting pipe 309b, and the end of the second connecting pipe 309b away from the particle counter 309 passes through the top of the oil tank 101 and extends to the lower inner side of the oil tank 101.

[0042] The operation process of this embodiment is as follows: first, add the required oil into the oil tank 101, and connect the flushed pipeline to the device:

[0043] When the device is used to flush the pipeline, the following steps are followed: start the low-pressure oil pump 202, the hydraulic oil in the oil tank 101 passes through the low-pressure oil pump 202, passes through the first filter 206 and enters the second oil pipe 207, and the hydraulic oil is transported to the hydraulic pipeline through the second oil pipe 207 and the first hose 208, thereby flushing the hydraulic pipeline.

[0044] When the device is used to detect oil samples, follow the following steps: the oil sample should be detected when the pipeline is flushed, and the particle counter 309 is connected to the system. The hydraulic oil in its hydraulic pipeline enters the particle counter 309 through the second oil return pipe 307 and the first connecting pipe 309a, and the particles in the hydraulic oil are counted by the particle counter 309. After the detection is completed, the particle counter 309 connecting pipeline is removed from the system.

[0045] The device is used for pressure testing and pressure maintenance according to the following steps: turn off the low-pressure oil pump 202 and start the high-pressure oil pump 201 switch. The hydraulic oil in the oil tank 101 enters the first filter 206 through the high-pressure oil pump 201 and is filtered by the first filter 206. The filtered hydraulic oil enters the hydraulic pipeline through the second oil pipeline 207 and the first hose 208, thereby achieving pressure testing and pressure maintenance of the hydraulic pipeline. Example 2

[0046] See also Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, it is the second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment in that: shock absorbing components 4 are also arranged on both sides of the front end surface of the shell 1, and the shock absorbing component 4 includes a mounting frame 401, an L-shaped frame 402, a half ring 403, a damping sleeve 404, a connecting rod 405 and a damping spring 406. The half ring 403 is damped by the cooperation of the damping fluid in the damping sleeve 404 and the damping spring 406, and the connection of the hydraulic pipeline is damped by the ring, which solves the existing problem of inconvenience in avoiding the hydraulic pipeline from falling off due to excessive vibration.

[0047] Specifically, two mounting frames 401 are provided and are fixedly connected to both sides of the front end surface of the shell 1 through L-shaped frames 402. Half rings 403 are movably connected to the upper and lower parts of the interior of the mounting frame 401. Damping sleeves 404 are fixedly connected to the top and bottom center positions of the mounting frame 401. A connecting rod 405 is sleeved inside the damping sleeve 404. One end of the connecting rod 405 located on the outside of the damping sleeve 404 is fixedly connected to the end surface of the half rings 403 on one side away from each other. A shock-absorbing spring 406 is sleeved on the outside of the connecting rod 405. The mounting frame 401 is provided to install structures such as the half rings 403. The L-shaped frame 402 is provided to install the mounting frame 401 on the shell 1. The half rings 403 are provided to install and cushion the connection between the device and the hydraulic pipeline. The damping sleeve 404, the connecting rod 405 and the shock-absorbing spring 406 are cooperatively provided to cushion the half rings 403, thereby cushioning the connection between the device and the hydraulic pipeline.

[0048] Furthermore, both sides of the top of the installation frame 401 are fixedly connected with fixing rods 401a, the tops of the fixing rods 401a pass through the longitudinal arms of the L-shaped frame 402 and are threadedly sleeved with fastening nuts 401b, and the vertical arms of the L-shaped frame 402 are fixedly connected to the front end surface of the housing 1;

[0049] Ear seats 403a are fixedly connected to the outer walls of both sides of the half ring 403, and the upper and lower adjacent ear seats 403a are fixedly connected by stud bolts 403b, and the side of the ear seats 403a away from the half ring 403 is movably connected to the inner wall of the installation frame 401;

[0050] Slide grooves 401c are vertically provided on the inner walls of both sides of the mounting frame 401, and sliders 403c are fixedly connected to the outer walls of the ear seat 403a away from the half ring 403, and the free ends of the sliders 403c are movably connected to the inside of the slide grooves 401c;

[0051] One end of the connecting rod 405 located inside the damping sleeve 404 is fixedly connected to a piston plate 405 a , and the outer side surface of the piston plate 405 a is attached to the inner side surface of the damping sleeve 404 .

[0052] The rest of the structure is the same as that of Example 1.

[0053] The operation process of this embodiment is as follows: when the connection between the hydraulic pipeline and the device vibrates, the half ring 403 drives the shock-absorbing spring 406 to elastically deform, and the vibration energy of the half ring 403 is converted into the kinetic potential energy of the connecting rod 405 through the shock-absorbing spring 406. At the same time, the kinetic potential energy of the connecting rod 405 is consumed by the damping fluid in the damping sleeve 404, thereby achieving shock absorption at the connection between the hydraulic pipeline and the device.

[0054] 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.

[0055] 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 those skilled in the art can well understand and use the utility model.

Claims

1. A hydraulic pipeline flushing and pressure-maintaining filtering device, comprising a housing (1), wherein an inner bottom of the housing (1) is fixedly connected to an oil tank (101), characterized in that: An oil delivery component (2) and an oil return component (3) are respectively arranged on both sides of the upper interior of the housing (1), and a shock absorbing component (4) is also arranged on both sides of the front end surface of the housing (1); The oil return assembly (3) comprises a heat sink (301) fixedly connected to the top of the oil tank (101), and an oil outlet pipe (301a) runs through the rear end surface of the heat sink (301), refrigeration boxes (302) are fixedly connected to the outer walls of both sides of the heat sink (301), and a semiconductor refrigeration sheet (303) is embedded and fixedly provided on the outer wall of the refrigeration box (302) on the side away from the heat sink (301), and a plurality of serpentine tubes (304) are fixedly connected to the inside of the heat sink (301), and the two ends of the serpentine tubes (304) respectively extend to the inner sides of the two refrigeration boxes (302), and a section of the serpentine tubes (304) located on the inner side of the heat sink (301) is sleeved with A fin (304a) is provided, and a plurality of through holes (304b) are evenly formed on the surface of the fin (304a); a first oil return pipe (305) runs through the front end surface of the heat sink (301); an end of the first oil return pipe (305) located inside the heat sink (301) is fixedly connected to an atomizing nozzle (305a); an end of the first oil return pipe (305) located outside the heat sink (301) is fixedly connected to a second filter (306); a liquid inlet end of the second filter (306) is fixedly connected to a second oil return pipe (307); and an end of the second oil return pipe (307) away from the second filter (306) is fixedly connected to a second hose (308); The shock absorbing component (4) comprises a mounting frame (401) fixedly connected to both sides of the front end surface of the housing (1) via an L-shaped frame (402), and half collars (403) are movably connected to the upper and lower parts of the mounting frame (401), and a damping sleeve (404) is fixedly connected to the top and bottom center positions of the mounting frame (401), and a connecting rod (405) is sleeved inside the damping sleeve (404), and one end of the connecting rod (405) located outside the damping sleeve (404) is fixedly connected to the end surfaces of the half collars (403) on one side away from each other, and a shock absorbing spring (406) is sleeved outside the connecting rod (405).

2. The hydraulic pipeline flushing pressure-maintaining filtering device according to claim 1, characterized in that: The oil delivery assembly (2) comprises a high-pressure oil pump (201) and a low-pressure oil pump (202) respectively fixedly connected to both sides of the rear end of the housing (1) via a mounting frame (203), and the oil inlet ends of the high-pressure oil pump (201) and the low-pressure oil pump (202) are both fixedly connected to an oil inlet pipe (204), the oil outlet end of the high-pressure oil pump (201) is fixedly connected to a first oil delivery pipe (205), and the front end of the first oil delivery pipe (205) is fixedly connected to a first filter (206), the oil outlet end of the first filter (206) is fixedly connected to a second oil delivery pipe (207), and the front end of the second oil delivery pipe (207) is fixedly connected to a first hose (208), the oil outlet end of the low-pressure oil pump (202) is fixedly connected to a third oil delivery pipe (209), and one end of the third oil delivery pipe (209) away from the low-pressure oil pump (202) is fixedly connected to the first oil delivery pipe (205).

3. The hydraulic pipeline flushing pressure-maintaining filtering device according to claim 2 is characterized in that: A control panel (102) is fixedly mounted on the upper side of the outer wall of one side of the shell (1), and a first device door (103) is movably connected to the lower side of the outer wall of one side of the shell (1), a second device door (104) is movably connected to one side of the front end surface of the shell (1), and pulleys (105) are fixedly connected to the bottom of the shell (1) on all sides.

4. The hydraulic pipeline flushing pressure-maintaining filtering device according to claim 1, characterized in that: A particle counter (309) is fixedly connected to one side of the second filter (306), and the oil inlet end of the particle counter (309) is fixedly connected to a first connecting pipe (309a), an end of the first connecting pipe (309a) away from the particle counter (309) is fixedly connected to a second oil return pipe (307), and an oil outlet end of the particle counter (309) is fixedly connected to a second connecting pipe (309b), and an end of the second connecting pipe (309b) away from the particle counter (309) passes through the top of the oil tank (101) and extends to the lower inner side of the oil tank (101).

5. The hydraulic pipeline flushing pressure-maintaining filtering device according to claim 1, characterized in that: Both sides of the top of the installation frame (401) are fixedly connected to fixing rods (401a), and the top ends of the fixing rods (401a) pass through the longitudinal arms of the L-shaped frame (402) and are threadedly sleeved with fastening nuts (401b), and the vertical arms of the L-shaped frame (402) are fixedly connected to the front end surface of the housing (1).

6. The hydraulic pipeline flushing pressure-maintaining filtering device according to claim 1, characterized in that: Ear seats (403a) are fixedly connected to the outer walls of both sides of the half ring (403), and the upper and lower adjacent ear seats (403a) are fixedly connected via stud bolts (403b), and the side of the ear seats (403a) away from the half ring (403) is movably connected to the inner wall of the installation frame (401).

7. The hydraulic pipeline flushing pressure-maintaining filtering device according to claim 6, characterized in that: Slide grooves (401c) are vertically provided on the inner walls on both sides of the installation frame (401), and a slider (403c) is fixedly connected to the outer wall of the ear seat (403a) away from the half ring (403), and the free ends of the sliders (403c) are movably connected to the inside of the slide grooves (401c).

8. The hydraulic pipeline flushing pressure-maintaining filtering device according to claim 1, characterized in that: One end of the connecting rod (405) located inside the damping sleeve (404) is fixedly connected to a piston plate (405a), and the outer side surface of the piston plate (405a) fits on the inner side surface of the damping sleeve (404).