CN217107263U

CN217107263U - Series special vehicle diesel oil backflow prevention structure

Info

Publication number: CN217107263U
Application number: CN202220402155.8U
Authority: CN
Inventors: 张恒; 俞海洋; 李建军; 李勇恒; 胡晨
Original assignee: Shaanxi Coal Industry Co Ltd Shennan Industry Development Co ltd
Current assignee: Shaanxi Coal Industry Co Ltd Shennan Industry Development Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-08-02
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses a series of special purpose vehicle diesel oil anti-return structure, belong to diesel oil system improvement field, a series of special purpose vehicle diesel oil anti-return structure, including the diesel tank, one side of diesel tank is fixed with into oil pipe, and the one end that advances oil pipe and keep away from the diesel tank is fixed with the diesel oil filter core, and the height that highly is higher than the diesel tank of diesel oil filter core, advances to install a check valve on the oil pipe, the business turn over hydraulic fluid port of check valve all is fixed with the go-between, advances the inside of oil pipe and is located the corresponding position department of check valve business turn over hydraulic fluid port and all installs tight closed loop, install a plurality of airtight structures on tight closed loop and the go-between, every airtight structure all includes airtight structure including fixing bolt. It can guarantee that the diesel oil in the pipeline does not flow back after the diesel oil filter core is pulled down, and when the vehicle needs the maintenance, maintenance personal can go on according to normal maintenance procedure, has saved the time of diesel oil pump oil for the maintenance progress of equipment, has ensured production and has continued.

Description

Series special vehicle diesel oil backflow prevention structure

Technical Field

The utility model relates to a diesel oil system improves the field, and more specifically says, relates to a series of special type car diesel oil anti-return structure.

Background

The publication No. CN214403832U proposes an oil supply system for diesel vehicle, which can discharge the gas in the filter at any time, and discharge the gas into the oil tank or directly to the oil tank through the oil return pipeline, so as to ensure that no gas exists in the filter, thereby keeping the diesel oil in the inner cavity of the filter element in a full state;

however, the above patents have some disadvantages, such as: the difference between the installation heights of the diesel tank and the diesel filter element is large, and diesel can flow back to the diesel tank after the diesel filter element is disassembled, so that the problem is caused;

in order to accelerate the equipment maintenance progress, protect the manual pump and ensure the perfectness of the equipment, the application carries out transformation on a diesel system on the premise of not changing the requirements of safety, use functions and the like.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a serial special type car diesel oil anti-return structure, it can guarantee that the diesel oil filter core pulls down the diesel oil in the back pipeline and does not flow back, and when the vehicle needs the maintenance, maintenance personal can go on according to normal maintenance procedure, has saved the time of diesel oil pump oil for the maintenance progress of equipment has ensured production and has continued.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A diesel oil backflow preventing structure for a series of special vehicles comprises a diesel oil tank, wherein an oil inlet pipe is fixed on one side of the diesel oil tank, a diesel oil filter element is fixed at one end, far away from the diesel oil tank, of the oil inlet pipe, and the diesel oil filter element is higher than the diesel oil tank;

the oil inlet pipe is provided with a check valve, oil inlet and outlet ports of the check valve are respectively fixed with a connecting ring, the oil inlet pipe is arranged inside the check valve and is located at the corresponding position of the oil inlet and outlet ports of the check valve, a tight closed ring is arranged at the corresponding position of the oil inlet and outlet ports of the check valve, and a plurality of closed structures are arranged on the connecting ring.

Furthermore, each closed structure comprises a fixing bolt, thread grooves which correspond to the fixing bolts in position and are the same in number are formed in the closed loop and the connecting ring, the fixing bolts are in threaded connection with the inner sides of the thread grooves, and a fixing nut is in threaded connection with the outer side of each fixing bolt and one side of the closed loop;

and a plurality of clamping assemblies are mounted on the fixing nut and are clamped by the fixing nut.

Furthermore, every chucking subassembly all includes the fixture block, fixation nut's inboard and be close to one side of tight closed loop is provided with a plurality of sliding trays, fixture block sliding connection in the inboard of sliding tray, the inboard of sliding tray just is located the fixture block with be provided with the spring between the fixation nut, the tight closed loop is close to one side of fixture block and be located the outside of thread groove is provided with a plurality of with the chucking groove that the fixture block corresponds.

Further, an oil inlet and an oil outlet of the check valve penetrate through the connecting ring and extend to one side of the connecting ring to be provided with a threaded pipe, and the threaded pipe is in threaded connection with the oil inlet pipe.

Furthermore, the outer side of the threaded pipe is wound with a plurality of circles of raw material belts.

Furthermore, an inclined plane is arranged on one side of the fixture block, and an angle of the fixture block corresponding to the inclined plane is a right angle.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

this scheme is through the check valve that the hydraulic fluid port set up on the diesel tank, guarantees that the diesel oil in the back pipeline is pulled down to the diesel oil filter core and does not flow back, and when the vehicle needs the maintenance, maintenance personal can go on according to normal maintenance procedure, has saved the time of diesel oil pump oil for the maintenance progress of equipment has ensured production and has continued.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure between the check valve, the oil inlet pipe and the fixing bolt of the present invention;

FIG. 3 is a schematic structural view of the fixing bolt, the clamping groove and the thread groove of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention;

FIG. 5 is a schematic structural view of the fixing nut and the fixture block of the present invention;

fig. 6 is a sectional view of the fixing nut of the present invention.

The numbering in the figures illustrates:

1. a diesel tank; 2. an oil inlet pipe; 3. a diesel filter element; 4. a spring; 5. a one-way valve; 6. tightly closing the ring; 7. a connecting ring; 8. fixing the bolt; 9. fixing a nut; 10. a clamping groove; 11. a thread groove; 12. a clamping block; 13. a sliding groove.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Example (b):

referring to fig. 1-6, a diesel backflow prevention structure for a series of special purpose vehicles comprises a diesel tank 1, wherein an oil inlet pipe 2 is fixed on one side of the diesel tank 1, a diesel filter element 3 is fixed on one end of the oil inlet pipe 2, which is far away from the diesel tank 1, and the height of the diesel filter element 3 is higher than that of the diesel tank 1, so that the experience obtained by the project can be popularized to the maintenance of other vehicles, especially under the conditions that the installation positions of all components in a diesel system have large fall, the maintenance is inconvenient, air is easy to be retained in pipelines, and the like;

the oil inlet pipe 2 is provided with a check valve 5, oil inlet and outlet ports of the check valve 5 are respectively fixed with a connecting ring 7, a closed loop 6 is arranged in the oil inlet pipe 2 and at a position corresponding to the oil inlet and outlet ports of the check valve 5, and a plurality of closed structures are arranged on the closed loop 6 and the connecting ring 7.

Referring to fig. 2 and 3, each closed structure includes a fixing bolt 8, thread grooves 11 corresponding to the fixing bolt 8 in position and in the same number are formed in the closed ring 6 and the connection ring 7, the fixing bolt 8 is in threaded connection with the inner sides of the thread grooves 11, a fixing nut 9 is in threaded connection with the outer side of the fixing bolt 8 and one side of the closed ring 6, the fixing bolt 8 fastens the closed ring 6 and the connection ring 7 through the fixing bolt 8, then the fixing nut 9 is installed, and the fixing nut 9 is rotated to enable the fixing nut 9 to move towards the direction close to the closed ring 6 through the threaded connection with the fixing bolt 8, so that the fixing bolt 8 is fastened;

a plurality of clamping components are arranged on the fixed nut 9, and the clamping components are used for clamping the fixed nut 9.

Referring to fig. 4-6, each clamping assembly includes a clamping block 12, a plurality of sliding grooves 13 are disposed on an inner side of the fixing nut 9 and a side close to the fastening ring 6, the clamping block 12 is slidably connected to an inner side of the sliding grooves 13, a spring 4 is disposed inside the sliding grooves 13 and between the clamping block 12 and the fixing nut 9, a plurality of clamping grooves 10 corresponding to the clamping block 12 are disposed on a side close to the clamping block 12 and outside the threaded groove 11 of the fastening ring 6, the clamping block 12 can be clamped into the inner side of the clamping grooves 10 by the arrangement of the clamping block 12 and the clamping grooves 10, and the fixing nut 9 can rotate in a screwing direction and cannot rotate in an unscrewing direction by the arrangement of an upper inclined plane of the clamping block 12, so that the sealing performance of the installation of the check valve 5 is ensured, and the possibility of oil leakage at the position of the check valve 5 is reduced.

Referring to fig. 2, the oil inlet and outlet of the check valve 5 passes through the connection ring 7 and extends to one side of the connection ring 7 to be provided with a threaded pipe, and the threaded pipe is in threaded connection with the oil inlet pipe 2, so that the check valve 5 and the oil inlet pipe 2 are installed more tightly, and the oil is further prevented from leaking.

Referring to fig. 2, the outer side of the threaded pipe is wound with a plurality of circles of raw material tapes, and the effect of further mounting the check valve 5 and the oil inlet pipe 2 is improved by the raw material tapes.

Referring to fig. 5, an inclined surface is disposed on one side of the locking block 12, and an angle of the locking block 12 corresponding to the inclined surface is a right angle, so that the fixing nut 9 can be screwed only in one direction when being screwed to the locking block 12 and the locking groove 10 to contact each other.

The working principle is as follows: when a user uses the device, when diesel oil falls back into the diesel oil tank 1 due to closing of the diesel oil filter element 3, the check valve 5 is adopted, so that the check valve 5 can prevent diesel oil from falling back into the diesel oil tank 1, when the check valve 5 is installed, a threaded pipe on the check valve 5 can be firstly in threaded connection with the oil inlet pipe 2 for installation, after rotation is completed, a threaded groove 11 on the fastening ring 6 is aligned with a threaded groove 11 on the connecting ring 7, the fastening ring 6 and the connecting ring 7 are fastened by the fixing bolt 8 through the arrangement of the fixing bolt 8, then the fixing nut 9 is installed, the fixing nut 9 is rotated, the fixing nut 9 moves towards the direction close to the fastening ring 6 through the threaded connection with the fixing bolt 8 and can be clamped into the inner side of the clamping groove 10 through the arrangement of the clamping block 12 and the clamping groove 10, and through the setting of the inclined plane on the fixture block 12, the fixing nut 9 can rotate towards the screwing direction, but can not rotate towards the unscrewing direction, so that the installation tightness of the check valve 5 is ensured, the possibility of oil leakage at the check valve 5 is reduced, and the fixing bolt 8 can be directly rotated to finish the disassembly when the disassembly is carried out.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the protection scope of the present invention by replacing or changing the technical solution and the modified concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a serial special type car diesel oil anti-return structure, includes diesel tank (1), its characterized in that: an oil inlet pipe (2) is fixed on one side of the diesel tank (1), a diesel filter element (3) is fixed on one end, far away from the diesel tank (1), of the oil inlet pipe (2), and the height of the diesel filter element (3) is higher than that of the diesel tank (1);

install a check valve (5) on advancing oil pipe (2), the business turn over hydraulic fluid port of check valve (5) all is fixed with go-between (7), advance the inside of oil pipe (2) and be located tight closed loop (6) are all installed to check valve (5) business turn over corresponding position department of hydraulic fluid port, tight closed loop (6) with install a plurality of airtight structures on go-between (7).

2. The diesel oil backflow preventing structure for the special purpose vehicle as claimed in claim 1, wherein: each closed structure comprises a fixing bolt (8), thread grooves (11) which correspond to the fixing bolts (8) in position and are the same in number are formed in the closed rings (6) and the connecting rings (7), the fixing bolts (8) are in threaded connection with the inner sides of the thread grooves (11), and a fixing nut (9) is in threaded connection with the outer side of each fixing bolt (8) and one side of each fixing bolt (6);

a plurality of clamping assemblies are mounted on the fixing nut (9), and the clamping assemblies are used for clamping the fixing nut (9).

3. The diesel oil backflow preventing structure for the special purpose vehicle as claimed in claim 2, wherein: each clamping assembly comprises a clamping block (12), a plurality of sliding grooves (13) are formed in the inner side of the fixing nut (9) and one side close to the tight closed ring (6), the clamping blocks (12) are connected to the inner side of the sliding grooves (13) in a sliding mode, springs (4) are arranged on the inner sides of the sliding grooves (13) and located between the clamping blocks (12) and the fixing nut (9), and a plurality of clamping grooves (10) corresponding to the clamping blocks (12) are formed in the outer side, close to one side of the clamping blocks (12), of the tight closed ring (6) and located in the threaded grooves (11).

4. The diesel oil backflow preventing structure for the special purpose vehicle as claimed in claim 1, wherein: an oil inlet and an oil outlet of the one-way valve (5) penetrate through the connecting ring (7) and extend to one side of the connecting ring (7) to be provided with a threaded pipe, and the threaded pipe is in threaded connection with the oil inlet pipe (2).

5. The diesel oil backflow preventing structure for the special purpose vehicle as claimed in claim 4, wherein: and the outer side of the threaded pipe is wound with a plurality of circles of raw material belts.

6. The diesel oil backflow preventing structure for the special purpose vehicle as claimed in claim 3, wherein: an inclined plane is arranged on one side of the clamping block (12), and an angle, corresponding to the inclined plane, on the clamping block (12) is a right angle.