CN219242197U

CN219242197U - Hydraulic pump convenient to maintain

Info

Publication number: CN219242197U
Application number: CN202320289918.7U
Authority: CN
Inventors: 赵可一
Original assignee: Shanghai Hanyingpu Electronic Technology Co ltd
Current assignee: Shanghai Hanyingpu Electronic Technology Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-06-23
Anticipated expiration: 2033-02-23

Abstract

The utility model relates to the technical field of hydraulic pumps, and discloses a hydraulic pump convenient to maintain, which comprises a hydraulic pump, wherein a connecting cover is arranged at the top of the hydraulic pump, an oil outlet pipe and an oil inlet pipe are respectively arranged at the top of the hydraulic pump through the connecting cover, sealing pipes are respectively arranged at the top ends of the oil outlet pipe and the oil inlet pipe through a connecting flange and a sealing ring in a pressing manner, an outer connecting pipe is movably sleeved at the top of the sealing pipe, and a connecting column is movably spliced at the top of the sealing pipe. The utility model designs a brand new connection mode, so that the sealing ring is extruded and forms interference fit between the outer connecting pipe and the inner wall of the sealing pipe to form a sealing function, the limiting ring and the sealing ring are pressurized by hydraulic oil, the deformation degree of the sealing ring is increased, gaps are avoided between the sealing ring and the sealing pipe and between the sealing ring and the outer connecting pipe, vibration generated by equipment is absorbed by the sealing ring and the first spring, connection looseness can be avoided, connection stability is improved, and sealing effect is better.

Description

Hydraulic pump convenient to maintain

Technical Field

The utility model relates to the technical field of hydraulic pumps, in particular to a hydraulic pump convenient to maintain.

Background

The hydraulic pump is a device driven by a motor and used for providing pressurized liquid for a hydraulic device, a gear or a spiral sheet for pressurizing the liquid is arranged in the hydraulic pump, an external liquid inlet and outlet is connected with external equipment through pipelines, so that sealing connection between pipelines is important.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the hydraulic pump which is convenient to maintain, and has the advantages of good sealing effect and convenient maintenance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hydraulic pump convenient to maintain, includes the hydraulic pump, the connecting cover is installed at the top of hydraulic pump, go out oil pipe and advance oil pipe through the connecting cover respectively, go out oil pipe and advance oil pipe's top and all install the sealed pipe through flange and sealing washer pressfitting, the top activity of sealed pipe has cup jointed outer connecting pipe, the top activity of sealed pipe has pegged graft and has been connected the spliced pole, the upper and lower both ends of spliced pole are fixedly connected with go-between and sealing ring respectively, the bottom gluing of sealing ring has the spacing ring, the sealing ring is interference fit between the inner wall of outer connecting pipe and sealed pipe, the outer surface activity of spliced pole has cup jointed No. two springs, the draw-in groove has been seted up to the surface of outer connecting pipe, the top fixed mounting of go-between has the mount, the inside of mount has cup jointed the magnetic column through No. spring spacing.

As a preferable technical scheme of the utility model, the sealing pipe is fixedly connected with the oil outlet pipe and the oil inlet pipe through bolts, the sealing ring is made of rubber blocks, and the sealing ring is installed between the upper connecting flange and the lower connecting flange in an extrusion mode.

As a preferable technical scheme of the utility model, the outer connecting tube is made of steel, the magnetic column is magnetically connected with the outer connecting tube, one end of the magnetic column, which faces the outer connecting tube, is adaptively clamped in the clamping groove, and the first spring is compressed and arranged between the magnetic column and the fixing frame.

As a preferable technical scheme of the utility model, the transverse cross section and the longitudinal cross section of the sealing ring are U-shaped, the sealing ring is made of rubber blocks, and the inner ring surface and the outer ring surface of the sealing ring are respectively in extrusion contact with the outer surface of the outer connecting pipe and the inner wall of the sealing pipe.

As a preferable technical scheme of the utility model, two ends of the second spring are respectively and elastically connected with the sealing ring and the top of the inner wall of the sealing tube, and the second spring is in a compressed state when the outer connecting tube is inserted into the sealing tube.

As a preferable technical scheme of the utility model, the number of the clamping grooves is two, the clamping grooves are respectively arranged on the front side and the rear side of the outer surface of the outer connecting pipe, and the outer connecting pipe is adapted to penetrate through the inner ring surface of the connecting ring.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model designs a brand new connection mode, wherein the magnetic column is connected with the outer connecting pipe in a magnetic attraction way, the clamping groove is formed in the outer surface of the outer connecting pipe, so that the magnetic column is adaptively clamped in the clamping groove, the stability of the clamping of the magnetic column in the clamping groove is improved by the pressure generated by the first spring, the magnetic column is prevented from loosening caused by vibration generated during operation of the hydraulic pump, meanwhile, the outer connecting pipe is utilized to enter the sealing pipe and is inserted into the inner annular surface of the sealing ring, so that the sealing ring is extruded and forms interference fit between the outer connecting pipe and the inner wall of the sealing pipe, a sealing function is formed, the deformation degree of the sealing ring is increased by the pressure of hydraulic oil on the limiting ring and the sealing ring, gaps are avoided between the sealing ring and the sealing pipe, vibration generated by equipment is also absorbed by the sealing ring and the first spring, the connection is prevented from loosening, the stability of the connection is improved, and the sealing effect is better.

2. Meanwhile, the sealing ring is internally arranged, the sealing ring is pressed by utilizing the hydraulic pressure of flowing hydraulic oil to enable the sealing ring to be extruded and deformed to a larger extent, the sealing effect of the sealing ring is improved, the sealing ring is clamped between the sealing rings through the limiting rings, the contact area between the sealing ring and the hydraulic oil is reduced, the corrosion degree of the sealing ring in unit time is reduced, the service life of the sealing ring is prolonged on one hand, in addition, the sealing pipe is separated from the oil outlet pipe and the oil inlet pipe through the connecting flange and the sealing ring, the sealing pipe is inspected and maintained in a regular manner, and the equipment is more convenient to maintain.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view partially in section of the front face of the oil inlet pipe, seal pipe and outer connecting pipe of the present utility model;

FIG. 3 is a schematic view in partial cutaway of the structure of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present utility model;

fig. 5 is a schematic diagram showing the separation of the partial structures of the present utility model.

In the figure: 1. a hydraulic pump; 2. a connection cover; 3. an oil outlet pipe; 4. an oil inlet pipe; 5. a connecting flange; 6. sealing the tube; 7. a connecting column; 8. an outer connecting tube; 9. a clamping groove; 10. a fixing frame; 11. a magnetic column; 12. a first spring; 13. a connecting ring; 14. a seal ring; 15. a limiting ring; 16. a second spring; 17. and (3) sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, the utility model provides a hydraulic pump convenient to maintain, which comprises a hydraulic pump 1, wherein a connecting cover 2 is arranged at the top of the hydraulic pump 1, an oil outlet pipe 3 and an oil inlet pipe 4 are respectively arranged at the top of the hydraulic pump 1 through the connecting cover 2, a sealing pipe 6 is respectively arranged at the top ends of the oil outlet pipe 3 and the oil inlet pipe 4 in a pressing manner through a connecting flange 5 and a sealing ring 17, an outer connecting pipe 8 is movably sleeved at the top of the sealing pipe 6, a connecting column 7 is movably spliced at the top of the sealing pipe 6, a connecting ring 13 and a sealing ring 14 are respectively fixedly connected at the upper end and the lower end of the connecting column 7, a limiting ring 15 is glued at the bottom of the sealing ring 14, the sealing ring 14 is in interference fit between the outer connecting pipe 8 and the inner wall of the sealing pipe 6, a second spring 16 is movably sleeved at the outer surface of the connecting column 7, a clamping groove 9 is formed in the outer surface of the outer connecting pipe 8, a fixing frame 10 is fixedly arranged at the top of the connecting ring 13, and a magnetic column 11 is limited and sleeved inside the fixing frame 10 through a first spring 12;

the device changes the connection mode of the outer connecting pipe 8 and the sealing pipe 6, the magnetic column 11 is magnetically connected with the outer connecting pipe 8, the clamping groove 9 is formed in the outer surface of the outer connecting pipe 8, the magnetic column 11 is in fit connection with the inner part of the clamping groove 9, the stability of the magnetic column 11 clamped in the clamping groove 9 is improved by the pressure generated by the first spring 12, the magnetic column 11 is not hard up due to vibration generated during operation of the hydraulic pump 1, meanwhile, the outer connecting pipe 8 is utilized to enter the sealing pipe 6 and is inserted into the inner annular surface of the sealing ring 14, the sealing ring 14 is extruded and forms interference fit between the outer connecting pipe 8 and the inner wall of the sealing pipe 6, a sealing function is formed, the deformation degree of the sealing ring 14 is increased through hydraulic oil, gaps are avoided between the sealing ring 14 and the sealing pipe 6 and the outer connecting pipe 8, vibration generated by equipment is absorbed by the sealing ring 14 and the first spring 12, the connection is avoided, the connection stability is improved, and the sealing effect is better.

The sealing pipe 6 is fixedly connected with the oil outlet pipe 3 and the oil inlet pipe 4 through bolts, the sealing ring 17 is made of rubber blocks, and the sealing ring 17 is installed between the upper connecting flange 5 and the lower connecting flange 5 in an extrusion mode;

the sealing pipe 6 is fixedly connected with the oil outlet pipe 3 and the oil inlet pipe 4 through bolts, so that the sealing pipe can be detached, and the sealing ring 14 and the limiting ring 15 inside the sealing pipe 6 can be conveniently and regularly maintained and maintained, so that the sealing pipe is more convenient.

The outer connecting pipe 8 is made of steel, the magnetic column 11 is magnetically connected with the outer connecting pipe 8, one end of the magnetic column 11, which faces the outer connecting pipe 8, is adaptively clamped in the clamping groove 9, and the first spring 12 is compressed and arranged between the magnetic column 11 and the fixing frame 10;

the magnetic column 11 is connected with the outer connecting pipe 8 through the generated magnetic attraction when contacting with the outer connecting pipe 8, and then is clamped into the inside of the clamping groove 9 when the magnetic column 11 is superposed with the clamping groove 9, so that the outer connecting pipe 8 is clamped and fixed in the front and back directions.

The transverse section and the longitudinal section of the sealing ring 14 are U-shaped, the sealing ring 14 is made of rubber blocks, and the inner ring surface and the outer ring surface of the sealing ring 14 are respectively in extrusion contact with the outer surface of the outer connecting pipe 8 and the inner wall of the sealing pipe 6;

as shown in fig. 2, the sealing ring 14 in the inverted "U" shape is just in contact with the sealing tube 6 and the outer connecting tube 8 at the same time, and produces a sealing effect by being deformed by being pressed.

Two ends of the second spring 16 are respectively and elastically connected with the sealing ring 14 and the top of the inner wall of the sealing tube 6, and when the outer connecting tube 8 is inserted into the sealing tube 6, the second spring 16 is in a compressed state;

the second spring 16 is responsible for providing elastic support for the connecting ring 13, the sealing ring 14 and the limiting ring 15, when hydraulic oil presses the limiting ring 15 and the sealing ring 14, the sealing ring 14 drives the connecting column 7 to move upwards, and at the moment, the second spring 16 is continuously compressed to a limit state, so that a limiting function is provided for the sealing ring 14 and the limiting ring 15.

The number of the clamping grooves 9 is two, the clamping grooves are respectively arranged on the front side and the rear side of the outer surface of the outer connecting tube 8, and the outer connecting tube 8 is matched with the inner ring surface of the penetrating connecting ring 13;

the clamping grooves 9 are two in number and are respectively distributed on the front side and the rear side of the outer connecting pipe 8, the front magnetic columns 11 and the rear magnetic columns 11 are magnetically clamped inside the clamping grooves 9, limiting fixation is provided for the outer connecting pipe 8, and meanwhile, the detachment accident of the outer connecting pipe 8 caused by the fact that a certain magnetic column 11 is pulled away carelessly is avoided.

The working principle and the using flow of the utility model are as follows:

when the device works, the outer connecting pipe 8 on the right side is connected with a hose upwards and an oil tank, the outer connecting pipe 8 on the left side is connected with a hose upwards and an oil tank by connecting hydraulic equipment, a worker inserts the bottom end of the outer connecting pipe 8 downwards, sequentially passes through the spring 12 and the sealing pipe 6 and enters the inner cavity of the sealing pipe 6, the magnetic column 11 is magnetically attracted and pressed to be contacted with the outer connecting pipe 8 on the outer surface of the outer connecting pipe 8 and is in sliding contact with the outer connecting pipe 8, when the outer connecting pipe 8 moves downwards to the inside of the sealing pipe 6, the outer connecting pipe 8 is pressed with the inner ring surface of the sealing ring 14 and deforms the sealing ring 14, then passes through the sealing ring 14, and drives the sealing ring 14, the limiting ring 15 and the connecting column 7 to move downwards by utilizing friction force generated by pressing and sleeving the sealing ring 14 until the magnetic column 11 moves and is clamped into the inner part of the clamping groove 9, and the sealing ring 14 is pressed and fixed by the inner wall of the outer connecting pipe 8 to form a sealing function;

then, the hydraulic oil passes through the outer connecting pipe 8 on the right side, the sealing pipe 6 and the oil inlet pipe 4 and enters the inside of the hydraulic pump 1, so that the pressurized hydraulic oil is discharged through the oil outlet pipe 3, the pressurizing process is completed, when the outer connecting pipe 8 needs to be disassembled, the limiting fixation of the outer connecting pipe 8 can be relieved only by pulling the magnetic columns 11 and enabling the magnetic columns 11 to be separated from the clamping grooves 9, the number of the magnetic columns 11 is two, the reliability of the outer connecting pipe 8 in fixation can be improved, the spring No. 12 provides reset pulling force, and the magnetic columns 11 are prevented from being pulled apart accidentally, so that the outer connecting pipe 8 is separated.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydraulic pump convenient to maintain, includes hydraulic pump (1), connecting lid (2) are installed at the top of hydraulic pump (1), oil outlet pipe (3) and advance oil pipe (4) are installed respectively through connecting lid (2) at the top of hydraulic pump (1), its characterized in that: the oil outlet pipe (3) and the top of advance oil pipe (4) are all installed sealed pipe (6) through flange (5) and sealing washer (17) pressfitting, outer connecting pipe (8) have been cup jointed in the activity of the top of sealed pipe (6), spliced pole (7) have been pegged graft in the activity of the top of sealed pipe (6), the upper and lower both ends of spliced pole (7) are fixedly connected with go-between (13) and sealing ring (14) respectively, the bottom of sealing ring (14) is glued and is had spacing ring (15), sealing ring (14) are interference fit between the inner wall of outer connecting pipe (8) and sealed pipe (6), no. two spring (16) have been cup jointed in the activity of the surface of spliced pole (7), draw-in groove (9) have been seted up to the surface of outer connecting pipe (8), the top fixed mounting of spliced pole (13) has mount (10), the inside of mount (10) has spacing magnetic column (11) cup jointed through No. spring (12).

2. A maintenance-friendly hydraulic pump as defined in claim 1, wherein: the sealing pipe (6) is fixedly connected with the oil outlet pipe (3) and the oil inlet pipe (4) through bolts, the sealing ring (17) is made of rubber blocks, and the sealing ring (17) is installed between the upper connecting flange and the lower connecting flange (5) in an extrusion mode.

3. A maintenance-friendly hydraulic pump as defined in claim 1, wherein: the outer connecting tube (8) is made of steel, the magnetic column (11) is magnetically attracted with the outer connecting tube (8) and connected, the magnetic column (11) is connected with the inside of the clamping groove (9) towards one end of the outer connecting tube (8) in an adaptive clamping mode, and the first spring (12) is arranged between the magnetic column (11) and the fixing frame (10) in a compressed mode.

4. A maintenance-friendly hydraulic pump as defined in claim 1, wherein: the transverse section and the longitudinal section of the sealing ring (14) are U-shaped, the sealing ring (14) is made of rubber blocks, and the inner ring surface and the outer ring surface of the sealing ring (14) are respectively in extrusion contact with the outer surface of the outer connecting pipe (8) and the inner wall of the sealing pipe (6).

5. A maintenance-friendly hydraulic pump as defined in claim 1, wherein: the two ends of the second spring (16) are respectively and elastically connected with the sealing ring (14) and the top of the inner wall of the sealing tube (6), and when the outer connecting tube (8) is inserted into the sealing tube (6), the second spring (16) is in a compressed state.

6. A maintenance-friendly hydraulic pump as defined in claim 1, wherein: the number of the clamping grooves (9) is two, the clamping grooves are respectively formed in the front side and the rear side of the outer surface of the outer connecting pipe (8), and the outer connecting pipe (8) is matched with the inner ring surface of the penetrating connecting ring (13).