CN215371464U - General type train adds water pipe head - Google Patents

Abstract

The utility model discloses a general train water filling pipe head, which belongs to the technical field of railway train water filling and is used for being connected with a train water filling pipe head; one end of the joint is detachably connected with the outer pipe, the other end of the joint is used for being connected with an external water adding hose, and the inner pipe is inserted into the outer pipe; the inner pipe comprises a pipe body, a limiting portion and a tight abutting portion, the limiting portion is arranged at one end of the pipe body, the tight abutting portion is arranged at the other end of the pipe body, the limiting portion abuts against the outer pipe, the tight abutting portion abuts against the joint, a gap is formed between the pipe body and the outer pipe, a water passing groove used for water to flow into the gap is formed in the tight abutting portion, the inner pipe is a flexible pipe, and the water injection pipe head of the train is inserted into the inner pipe. The utility model solves the problem of poor universality of the water adding pipe head of the existing train.

Description

General type train adds water pipe head

Technical Field

The utility model relates to the technical field of water adding of railway trains, in particular to a universal train water adding pipe head.

Background

Railway transportation is a type of land transportation in which a locomotive pulls a train vehicle over two parallel rails. The traditional mode is steel wheel traveling, but the generalized railway transportation still includes non-steel wheel traveling modes such as magnetic suspension trains, cable cars, cableways and the like, or rail transportation. The rails provide an extremely smooth and hard medium on which the train wheels roll with minimal friction, making the upper person more comfortable, and it also saves energy. If properly configured, rail transport can save five to seven costs of energy over road transport when carrying the same weight. Moreover, the rails can evenly disperse the weight of the train, so that the loading capacity of the train is greatly improved.

On a station track of a railway station, the operation of adding water to a train can involve equipment connected with the train, and a water adding pipe head needs to be pulled out in the operation process and is connected with a water filling port on the train. The water adding pipe head of the traditional water adding equipment mainly has the following options:

1. the nylon shell and the inner polyurethane conical solid form a water adding pipe head. Although the cone-shaped entity of the water filling pipe head is approximately matched with the external dimension of a certain water filling head, the water filling pipe head has no universality and is easy to loose and leak water when being used on different types of trains;

2. a water adding pipe head formed by the stainless steel shell and the internal rubber entity. The metal cylindrical shell of the water adding pipe head can increase the weight of the water adding pipe head, is heavy when in use, is very inconvenient when in use of frozen hands in winter, and has no universality;

3. the whole body of the rubber mold opening entity is provided with a water pipe head. The water adding pipe head is large in overall thickness, insufficient in flexibility and generality and not easy to connect with a water adding hose.

Because the train water filling port model specification of different models is different, consequently the phenomenon that the linking can appear linking tightly and lead to giving train water filling in-process tube head drops in the current tube head that adds water, this not only influences operation workman's operating efficiency, has wasted the water resource moreover to a very big extent. In view of this, the utility model provides a general train water filling pipe head.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a universal train water adding pipe head, which solves the problem of poor universality of the existing train water adding pipe head.

The technical purpose of the utility model is realized by the following technical scheme:

a general train water filling pipe head is used for being connected with a train water filling pipe head and comprises a joint, an outer pipe and an inner pipe;

one end of the joint is detachably connected with the outer pipe, the other end of the joint is used for being connected with an external water adding hose, and the inner pipe is inserted into the outer pipe;

the inner pipe comprises a pipe body, a limiting portion and a tight abutting portion, the limiting portion is arranged at one end of the pipe body, the tight abutting portion is arranged at the other end of the pipe body, the limiting portion abuts against the outer pipe, the tight abutting portion abuts against the joint, a gap is formed between the pipe body and the outer pipe, a water passing groove used for water to flow into the gap is formed in the tight abutting portion, the inner pipe is a flexible pipe, and the water injection pipe head of the train is inserted into the inner pipe.

By adopting the structure, in the water adding process, the water adding pipe head is pulled out and inserted into the water filling port of the train, so that the water adding pipe head tightly holds the water filling port of the train, and the water adding operation is realized. The connection process of the water adding pipe head and the train water filling port is as follows: the train water injection pipe head is inserted into the inner pipe from the end far away from the joint, so that the front end port of the train water injection pipe head props open the inner pipe of the soft structure, the contact part of the inner pipe and the front end port of the train water injection pipe head can generate slight elastic deformation, and the connection of the water injection pipe head and the train water injection port is completed. After the water injection pipe head of the train is tightly inserted, the inner pipe of the soft structure is tightly attached to the water injection port of the train, when water is injected, tap water enters the space between the pipe body and the outer pipe through the water passing groove, so that the gap is filled, the outer surface of the inner pipe of the soft structure is compressed by the water pressure of the tap water at the moment, the holding effect is formed, and the water injection pipe head is connected more tightly.

The method is further optimized as follows: the body is the taper pipe and inside and outside diameter all increases gradually along the rivers direction.

Adopt above-mentioned structure, different specification water filling ports, train water injection tube head insert the inner tube degree of depth different, and this general type adds water tube head can realize that a specification adds water tube head and matches different specification water filling ports for add water more convenient light, promote the operating efficiency, the using water wisely. For the old train water filling pipe head, the taper of the inner cavity of the pipe head is generally larger or smaller than that of the water filling head, so that a gap exists between the water filling pipe head and the train water filling pipe head, and the phenomena of falling and water leakage are easy to occur. The inside software transformation of this water pipe head adds water, the matching clearance is reserved in the design, and the water filling process utilizes water pressure self to hold the water filling port tightly, and the problem that current train adds water pipe head commonality is poor has been solved to anticreep leak protection.

The method is further optimized as follows: the inner pipe is a polyurethane flexible pipe, and the thickness of the pipe body is 2-4 mm.

By adopting the structure, the middle part of the polyurethane customized soft structure, namely the pipe body, is of a thin-wall structure, the thickness is about 3mm, the elastic strength is high, and a water filling port of a train can be conveniently inserted into the soft structure. The diameter of the front end opening of the inner pipe of the soft structure limits the inserting depth of the water filling port, the water tank is designed at the tail end of the inner pipe of the soft structure, tap water with pressure flows into the matching gap to form an auxiliary holding effect, and the connection tightness and the connection strength between the water filling pipe head and the train water filling pipe head are improved.

The method is further optimized as follows: the outer tube comprises an outer tube body, a circle of resisting parts are integrally arranged at one end, away from the joint, of the outer tube body, and the resisting parts are tightly resisted with the resisting parts.

The method is further optimized as follows: the water passing grooves are arranged in a plurality of equal intervals along the circumferential direction of the pipe body.

The method is further optimized as follows: the joint is an aluminum joint, and the outer pipe is a nylon pipe.

The method is further optimized as follows: the joint is in threaded connection with the outer pipe.

In conclusion, the utility model has the following beneficial effects: the structure of the whole water adding pipe head is divided into three parts, namely an aluminum joint, an outer pipe with a polyurethane customized soft structure and a nylon outer pipe. The water adding hose is connected to one end of an aluminum connecting piece (aluminum connector), the other end of the aluminum connecting piece is connected with a thread opening of the nylon outer tube to form an external structure of the whole water adding pipe head, the polyurethane customized soft structure (inner tube) is assembled inside the nylon outer tube, and a matching gap exists between the polyurethane customized soft structure (inner tube) and the nylon outer sleeve to form the whole water adding pipe head. The general train water adding pipe head has the following advantages:

1. the universal water filling head has strong universality and high adaptability, can meet the requirements of various train water filling heads, improves the water filling efficiency and saves water.

2. The volume is moderate, the quality is little, and the installation is convenient, labour saving and time saving.

3. The inside material is soft, and outside material is wear-resisting, durable, and the security is high.

4. Can be matched with a self-designed pipe head return device for use, thereby preventing safety accidents.

Drawings

FIG. 1 is a schematic sectional view of a part of an embodiment, which is mainly used for embodying the structure of a water filling pipe head;

FIG. 2 is a schematic structural view of an embodiment, which is mainly used for embodying the structure of an inner pipe;

FIG. 3 is a schematic sectional view of the embodiment, which is mainly used for showing a matching structure between the inner pipe and the water filling pipe head of the train.

In the figure, 1, a joint; 21. an outer tube body; 22. a resisting part; 3. an inner tube; 31. a pipe body; 32. a limiting part; 33. a tightening part; 34. passing through a water tank; 4. a gap; 5. a water injection pipe head of a train.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a general train water filling pipe head is used for being connected with a train water filling pipe head 5, and comprises a connector 1, an outer pipe and an inner pipe 3 as shown in figures 1-3. The joint 1 is an aluminum connecting piece, namely the joint 1 is made of metal aluminum, one end of the joint 1 is detachably connected with the outer pipe, and the other end of the joint is used for being connected with an external water adding hose. Preferably, connect 1 and outer tube threaded connection, the leakproofness is good, and dismantles the convenience. The inner pipe 3 is inserted in the outer pipe, one end of the inner pipe is tightly propped against the outer pipe, and the other end of the inner pipe is tightly propped against the joint 1.

Referring to fig. 1 to 3, the inner tube 3 includes a tube 31, a limiting portion 32 disposed at one end of the tube 31, and a tightening portion 33 disposed at the other end of the tube 31, and the tube 31, the limiting portion 32, and the tightening portion 33 are integrally formed. The limiting portion 32 is tightly abutted to the outer pipe, the abutting portion 33 is tightly abutted to the joint 1 and is in contact with the inner wall of the outer pipe, the limiting portion 32 is located at the front end of the inner pipe 3 in the water flow direction, and the abutting portion 33 is located at the rear end of the inner pipe 3 in the water flow direction. Preferably, the outer tube includes an outer tube body 21, a circle of resisting portion 22 is integrally arranged at one end of the outer tube body 21 away from the joint 1, and the resisting portion 33 is located on the inner wall of the outer tube and is tightly contacted with the resisting portion 22 to limit the insertion depth of the inner tube 3 and prevent the inner tube 3 from separating from the outer tube from the end away from the joint 1. The outer tube is a nylon tube, i.e. the outer tube is made of nylon.

Referring to fig. 1-3, a gap 4 is provided between the tube body 31 and the outer tube, a water passing groove 34 for water to flow into the gap 4 is provided on the abutting portion 33, and the gap 4 is communicated with the inside of the inner tube 3 through the water passing groove 34. The water passing grooves 34 are provided in plural, and the water passing grooves 34 are provided at equal intervals in the circumferential direction of the pipe body 31. The inner tube 3 is a flexible tube, preferably, the inner tube 3 is a flexible polyurethane tube, i.e. the inner tube 3 is made of polyurethane. The pipe body 31 is a conical pipe, the inner diameter and the outer diameter of the pipe body are gradually increased along the water flow direction, and preferably, the thickness of the pipe body 31 is 2-4mm, specifically 3 mm. The train water filling pipe head 5 is inserted into the inner pipe 3 from the end far away from the joint 1 so that water enters the train water filling pipe head 5 through the inner pipe 3.

In the water adding process, the water adding pipe head is pulled out and inserted into the water filling port of the train, so that the water adding pipe head tightly holds the water filling port of the train, and the water adding operation is realized. The connection process of the water adding pipe head and the train water filling port is as follows: insert inner tube 3 with train water injection tube head 5 from keeping away from 1 one end of joint to make 5 front end ports of train water injection tube head strut inner tube 3 of polyurethane flexible body structure, the light elastic deformation can take place for the contact part of inner tube 3 and 5 front end ports of train water injection tube head this moment, adds the water tube head and is connected the completion with the train water filling port. After the train water injection tube head 5 is inserted tightly, the inner tube 3 of the flexible polyurethane structure is closely attached to the train water injection port, when water is injected, tap water enters the space between the tube body 31 and the outer tube through the water groove 34, so that the gap 4 is full of, and the tap water pressure can compress the outer surface of the inner tube 3 of the flexible polyurethane structure, thereby forming a holding effect, and enabling the water injection tube head to be connected more tightly.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a general type train adds water pipe head for be connected with train water injection pipe head (5), characterized by: comprises a joint (1), an outer pipe and an inner pipe (3);

one end of the joint (1) is detachably connected with the outer pipe, the other end of the joint is used for being connected with an external water adding hose, and the inner pipe (3) is inserted into the outer pipe;

the inner pipe (3) comprises a pipe body (31), a limiting portion (32) arranged at one end of the pipe body (31) and a tightening portion (33) arranged at the other end of the pipe body (31), the limiting portion (32) is tightly tightened with the outer pipe, the tightening portion (33) is tightly tightened with the joint (1), a gap (4) is formed between the pipe body (31) and the outer pipe, a water passing groove (34) used for water to flow into the gap (4) is formed in the tightening portion (33), the inner pipe (3) is a flexible pipe, and the train water injection pipe head (5) is inserted into the inner pipe (3).

2. The universal train water adding pipe head as claimed in claim 1, wherein: the pipe body (31) is a conical pipe, and the inner diameter and the outer diameter of the pipe body are gradually increased along the water flow direction.

3. The universal train water adding pipe head as claimed in claim 2, wherein: the inner pipe (3) is a polyurethane flexible pipe, and the thickness of the pipe body (31) is 2-4 mm.

4. The universal train water adding pipe head as claimed in claim 1, wherein: the outer pipe comprises an outer pipe body (21), one end, far away from the joint (1), of the outer pipe body (21) is integrally provided with a circle of resisting portion (22), and the resisting portion (33) is tightly contacted with the resisting portion (22).

5. The universal train water adding pipe head as claimed in claim 1, wherein: the water passing grooves (34) are arranged in a plurality, and the water passing grooves (34) are arranged at equal intervals along the circumferential direction of the pipe body (31).

6. The universal train water adding pipe head as claimed in claim 1, wherein: the joint (1) is an aluminum joint, and the outer pipe is a nylon pipe.

7. The universal train water adding pipe head as claimed in claim 1, wherein: the joint (1) is in threaded connection with the outer pipe.

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