阅读说明：本技术 输油管组件 (Oil transportation pipe assembly ) 是由 王志军 贺静 姚海明 赵建华 于 2019-09-10 设计创作，主要内容包括：本发明公开了一种输油管组件,包括：油管,其用于输送燃油；加热丝,其伸入至所述油管以用于为流经所述油管的燃油加热；保持部件,所述加热丝穿设所述保持部件,所述保持部件随所述加热丝伸入至所述油管并支撑于所述油管的内壁；其中：所述保持部件上具有供燃油通过的镂空部。本发明通过在油管中增设加热丝能够有效对油管内的燃油进行加热,以解决因柴油僵化而导致发动机启动和运行受阻的问题,并且加热丝借由保持部件而能够稳定的保持在油管中。(The invention discloses an oil delivery pipe assembly, comprising: an oil pipe for transporting fuel; a heating wire extending into the oil pipe for heating fuel flowing through the oil pipe; the heating wire penetrates through the retaining component, and the retaining component extends into the oil pipe along with the heating wire and is supported on the inner wall of the oil pipe; wherein: the holding member has a hollow portion through which fuel passes. The heating wire is additionally arranged in the oil pipe, so that fuel oil in the oil pipe can be effectively heated, the problem that the starting and running of an engine are blocked due to the hardening of diesel oil is solved, and the heating wire can be stably kept in the oil pipe by the aid of the keeping component.)

1. An oil delivery pipe assembly, comprising:

an oil pipe for transporting fuel;

a heating wire extending into the oil pipe for heating fuel flowing through the oil pipe;

the heating wire penetrates through the retaining component, and the retaining component extends into the oil pipe along with the heating wire and is supported on the inner wall of the oil pipe; wherein:

the holding member has a hollow portion through which fuel passes.

2. A flow assembly according to claim 1, wherein the retaining member comprises:

a holding part provided with a through hole for the heater wire to penetrate through;

and the supporting part is arranged on the periphery of the holding part and is supported on the inner wall of the oil pipe.

3. The oil delivery pipe assembly according to claim 1, wherein a port at one end of the through hole of the holding part is chamfered to form a weld with the heating wire, and the heating wire is fixedly connected with the holding part by welding at the weld.

4. Flow pipe assembly according to claim 1 or 2, wherein the support part comprises a support ring and a plurality of spokes connecting the support ring with the holding part; wherein:

the spokes are arranged circumferentially, and the hollow parts are formed between every two adjacent spokes;

the outer peripheral surface of the support ring is used for contacting with the inner wall of the oil pipe.

5. The tubing assembly of claim 4, wherein the retaining member is formed by opening a plurality of said cutouts in the disc in a circumferential arrangement.

6. Oil delivery pipe assembly according to claim 1 or 2, wherein the support part comprises a plurality of support units; a plurality of the supporting units are circumferentially arranged;

each of the support units includes:

a support rod having a tail portion connected to the holding portion;

the head of the top sleeve is used for abutting against the inner wall of the oil pipe, and the tail of the top sleeve is provided with a guide hole;

a guide post connected to a head of the support rod, the guide post extending into the guide hole;

a spring disposed in the guide hole and between a hole bottom of the guide hole and the guide post;

and the limiting mechanism is used for limiting the guide post to be separated from the guide hole.

7. The assembly according to claim 6, wherein the guide post has a radial dimension larger than the support rod such that a stepped surface is formed at a junction of the guide post and the support rod;

the limiting mechanism comprises a nut sleeve, the nut sleeve comprises a nut body and a stop sleeve formed on the nut body, and the stop sleeve is screwed into the guide hole from the tail of the top sleeve so as to limit the guide column to be separated from the guide hole through the step surface.

8. A flow pipe assembly according to claim 6, wherein the head of the top sleeve is arranged as a spherical surface.

9. Oil pipe assembly according to claim 6, characterized in that the tail of the support rod is screwed onto the retainer.

10. Oil pipe assembly according to claim 6, characterized in that the guide posts are screwed to the support bars.

Technical Field

The invention relates to the technical field of engines, in particular to an oil conveying pipe assembly.

Background

Diesel engines are the power components of heavy duty mobile devices, which have the advantage of high torque. However, the diesel oil used for starting and operating the diesel engine has a drawback of being easily hardened (or waxed) in a low temperature environment, which results in: when the external environment temperature is very low, the diesel oil in the oil delivery pipe can not be smoothly delivered into the piston cylinder due to the rigidity, so that the starting and the operation of the engine are blocked.

Disclosure of Invention

In view of the above technical problems in the prior art, embodiments of the present invention provide a tubing assembly.

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:

an oil delivery tube assembly comprising:

an oil pipe for transporting fuel;

a heating wire extending into the oil pipe for heating fuel flowing through the oil pipe;

the heating wire penetrates through the retaining component, and the retaining component extends into the oil pipe along with the heating wire and is supported on the inner wall of the oil pipe; wherein:

the holding member has a hollow portion through which fuel passes.

Preferably, the holding member includes:

a holding part provided with a through hole for the heater wire to penetrate through;

and the supporting part is arranged on the periphery of the holding part and is supported on the inner wall of the oil pipe.

Preferably, a port at one end of the through hole of the holding part is chamfered to form a welding seam with the heating wire, and the heating wire is fixedly connected with the holding part by welding at the welding seam.

Preferably, the support portion comprises a support ring and a plurality of spokes connecting the support ring with the holding portion; wherein:

the spokes are arranged circumferentially, and the hollow parts are formed between every two adjacent spokes;

the outer peripheral surface of the support ring is used for contacting with the inner wall of the oil pipe.

Preferably, the holding member is formed by opening a plurality of the hollowed-out portions arranged circumferentially on the tray body.

Preferably, the support part includes a plurality of support units; a plurality of the supporting units are circumferentially arranged;

each of the support units includes:

a support rod having a tail portion connected to the holding portion;

the head of the top sleeve is used for abutting against the inner wall of the oil pipe, and the tail of the top sleeve is provided with a guide hole;

a guide post connected to a head of the support rod, the guide post extending into the guide hole;

a spring disposed in the guide hole and between a hole bottom of the guide hole and the guide post;

and the limiting mechanism is used for limiting the guide post to be separated from the guide hole.

Preferably, the radial dimension of the guide post is larger than that of the support rod, so that a stepped surface is formed at the joint of the guide post and the support rod;

the limiting mechanism comprises a nut sleeve, the nut sleeve comprises a nut body and a stop sleeve formed on the nut body, and the stop sleeve is screwed into the guide hole from the tail of the top sleeve so as to limit the guide column to be separated from the guide hole through the step surface.

Preferably, the head of the top sleeve is provided with a spherical surface.

Preferably, the tail portion of the support rod is screwed to the holding portion.

Preferably, the guide post is screwed to the support rod.

Compared with the prior art, the oil pipeline assembly disclosed by the invention has the beneficial effects that:

the heating wire is additionally arranged in the oil pipe, so that fuel oil in the oil pipe can be effectively heated, the problem that the starting and running of an engine are blocked due to the hardening of diesel oil is solved, and the heating wire can be stably kept in the oil pipe by the aid of the keeping component.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the inventive embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a main sectional view of a hose assembly according to embodiment 1 of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a main sectional view of a flow pipe assembly according to example 2 of the present invention.

Fig. 4 is an enlarged view of a portion C of fig. 3.

Fig. 5 is a sectional view taken along line B-B of fig. 3.

Fig. 6 is an enlarged view of a portion D of fig. 5.

Fig. 7 is a view showing a use state of the oil delivery pipe assembly according to embodiment 2 of the present invention (in a case where the section of the oil pipe is oblate).

Reference numerals:

10-oil pipe; 20-heating wires; 30-a holding member; 31-a holding portion; 32-a support; 321-spokes; 322-a support ring; 33-a hollowed-out portion; 40-welding seams; 30' -a holding member; 31' -a holding portion; 32' -a support portion; 321' -support rods; 3211' -a stud; 322' -top sleeve; 3221' -a guide hole; 323' -spring; 324' -guide posts; 3241' -a stud; 325' -nut sleeve; 3251' -nut body; 3252' -stop collar; 33' -hollowed-out portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.

As shown in fig. 1 to 7, an embodiment of the present invention discloses a pipe assembly 10 applied to a diesel engine. The delivery line assembly comprises a line 10 for delivering fuel (diesel fuel) to internal components of the engine, such as a piston cylinder, a heating wire 20 and retaining components 30, 30'; a heating wire 20 is used for extending into the fuel pipe 10 to heat the fuel flowing through or rigidifying the fuel inside the fuel pipe 10, the heating wire 20 is an electric heating wire 20, and the heating wire 20 is heated by being electrified by an electric heating component (not shown in the drawing) arranged at the end of the heating wire 20 (which can be located at the position where the fuel tank is connected with the fuel pipe 10); the holding member 30, 30 ' is used for the heater wire 20 to pass through, and the holding member 30, 30 ' enters the oil pipe 10 along with the heater wire 20 during the process that the heater wire 20 extends into the oil pipe 10, and the holding member 30, 30 ' keeps the heater wire 20 approximately at the middle of the section of the oil pipe 10 by means of the contact of the outer edge and the inner wall of the oil pipe 10, and can prevent the heater wire 20 from generating large radial movement. Specifically, the holding member 30, 30 ' includes a holding portion 31, 31 ' and a supporting portion 32, 32 '; the holding parts 31, 31 ' are in a sleeve shape, and have through holes, through which the heater wire 20 passes before the heater wire 20 extends into the oil pipe 10, in some preferred embodiments, a port at one end of the through hole (for example, a right port of the through hole as shown in fig. 1) is chamfered, after the heater wire 20 passes through the through hole, the chamfered forms a welding seam 40 with an outer circumferential surface of the heater wire 20 at the position, and the welding seam 40 is welded by a welding gun so that the holding parts 30, 30 ' are fixedly connected with the heater wire 20 and further the axial movement of the holding parts 30, 30 ' relative to the heater wire 20 is limited; a support portion 32, 32 'is provided at the periphery of the holding member 30, 30' and is in a connected state with the holding portion 31, 31 ', and the support portion 32, 32' is used to contact the inner wall of the oil pipe 10 to support the heater wire 20, that is, to allow the heater wire 20 to penetrate substantially the middle of the oil pipe 10 and to be restricted from radial play.

It should be noted that: the retaining member 30, 30 'is provided with a hollowed-out portion 33, 33', the hollowed-out portion 33, 33 'serving to allow the passage of fuel to avoid the retaining member 30, 30' obstructing the flow of fuel through the fuel pipe 10.

It is easily understood that the plurality of holding members 30, 30' described above are arranged before the heating wire 20 is threaded through the oil pipe 10 so that the heating wire 20 is supported and held at a plurality of positions in the axial direction.

It should be noted that: the holding elements 30, 30 ' are arranged on the heating wire 20 prior to the heating wire 20 being inserted into the oil line 10, i.e. the holding elements 30, 30 ' are first arranged on the heating wire 20 at intervals, and then the heating wire 20 is inserted into the oil line 10, and accordingly the holding elements 30, 30 ' enter the oil line 10 with the heating wire 20.

It should be noted that: when the stiffness of the heating filament 20 is sufficiently large, the heating filament 20 and the holding parts 30, 30' can be brought into the oil pipe 10 by pushing against the heating filament 20; when the rigidity of the heating wire 20 is small, the heating wire 20 is firstly connected to the end of the heating wire 20 by using a guide wire, then the guide wire is firstly passed through the oil pipe 10, and the heating wire 20 is pulled into the oil pipe 10 by dragging the guide wire.

The specific structure of the holding member may be various, and two different structures of the holding member will be described below, and the main difference is the support portion.

Example 1

As shown in fig. 1 and 2, in the present embodiment, the support portion 32 includes a support ring 322 and a plurality of spokes 321, the support ring 322 is located at the periphery of the holding portion 31, the plurality of spokes 321 are connected between the support ring 322 and the holding portion 31, and the plurality of spokes 321 are circumferentially and evenly distributed. The outer peripheral surface of the support ring 322 is used for contacting with the inner wall of the oil pipe 10; the hollow-out portion 33 is defined between every two adjacent spokes 321, and the fuel can flow through the fuel pipe 10 through the hollow-out portion 33 between the spokes 321.

In this embodiment, the support ring 322 forms a clearance fit with the inner wall of the oil pipe 10, so as to prevent the protrusion process of the heater strip 20 from being blocked due to the large friction generated between the support ring 322 and the inner wall of the oil pipe 10 during the protrusion process of the heater strip 20 into the oil pipe 10.

The holding member 31 of the present embodiment is suitable for the oil pipe 10 having a straight pipe section and a relatively strict circular section, which is the oil pipe 10.

The holding member 30 provided by the present embodiment is advantageous in that:

1. the radial play of the heating wire 20 can be restricted strictly.

2. The support ring 322, the spokes 321 and the holding portion 31 can be formed simultaneously by machining the cutouts 33 shown in fig. 2 in one circular disk, which makes the machining of the holding part 30 simple.

Example 2

As shown in fig. 3 to 7, in the present embodiment, the holding portion 31 'is formed by machining alone, specifically, a plurality of bosses, each of which is provided with a threaded hole, are machined on the outer periphery of the holding portion 31'.

In the present embodiment, the supporting portion 32' includes a plurality of supporting units having the same number as the number of the bosses, and the plurality of supporting units are correspondingly mounted on the plurality of bosses.

In the present embodiment, each of the support units includes: a support rod 321 ', a top sleeve 322', a guide post 324 ', a spring 323' and a limiting mechanism. The tail part of the support rod 321 ' is provided with a stud 3211 ', and the stud 3211 ' is screwed into the threaded hole of the boss, so that the support rod 321 ' is screwed and radially protrudes out of the holding part 31 '; the head of the top sleeve 322 ' is a spherical surface, and a guide hole 3221 ' is formed from the tail of the top sleeve 322 ' to the head; a stud 3211 'is formed at the tail of the guide post 324', the stud 3211 'is screwed into the head of the support rod 321' to coaxially connect the guide post 324 'to the head of the support rod 321', and the radial dimension of the guide post 324 'is greater than that of the support rod 321' to form a stepped surface at the connection between the guide post 324 'and the support rod 321'; the guiding column 324 'extends into the guiding hole 3221'; a spring 323 'is arranged in the guide hole 3221', the spring 323 'is arranged between the hole bottom of the guide hole 3221' and the head of the guide column 324 ', and the head of the top sleeve 322' is used for contacting with the inner wall of the oil pipe 10; the limiting mechanism is used for limiting the guide post 324 'to be pulled out of the guide hole 3221', and specifically, the limiting mechanism comprises a nut sleeve 325 ', the nut sleeve 325' comprises a nut body 3251 'and a stopping sleeve 3252' integrally formed on the nut body 3251 ', and the stopping sleeve 3252' is screwed into the guide hole 3221 'from the tail part of the top sleeve 322' to limit the guide post 324 'to be pulled out of the guide hole 3221' by being abutted by the stepped surface. As such, on the one hand, a plurality of support units are circumferentially arranged around the holding portion 31'; on the other hand, the top sleeve 322' of each support unit retracts when subjected to a radially inward force.

The advantages of this embodiment are:

1. the retaining member 30 'can contact the inner wall of oil pipes 10 of different diameters within a certain radial dimension range by retraction or extension of the top sleeve 322', which enables the retaining portion 31 'piece 30' to extend into oil pipes 10 of different diameters along with the heating wire 20.

2. When the oil pipe 10 to be drilled is deformed at a certain axial position, for example, when the oil pipe 10 inevitably needs to be bent, the vicinity of the bent area will present an oblate (or elliptical) structure, and further, for example, when a machining error occurs during machining of the oil pipe 10 or the oil pipe 10 is impacted, the oil pipe 10 will be deformed to a certain extent, and the holding portion 31 '30' of the present embodiment can still extend into the oil pipe 10 along with the heating wire 20, because: for example, when the oil pipe 10 is deformed so that the cross section of the oil pipe 10 is oblate, the top sleeve 322 ' of each support unit can be extended and retracted to adapt to the deformation condition of the inner wall of the oil pipe 10, for example, as shown in fig. 7, the top sleeve 322 ' corresponding to the minor axis of the oblate can be retracted to contact with the inner wall, and the top sleeve 322 ' corresponding to the major axis of the oblate can be extended to contact with the inner wall.

3. Hollow parts 33 'are formed between the supporting units, and the area of the hollow parts 33' is larger, so that the fuel oil can flow more smoothly through the oil pipe 10.

Moreover, although exemplary embodiments have been described herein, the scope of the present invention includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.