CN220770445U - Engine water outlet hose connection structure - Google Patents

Abstract

The utility model relates to the field of hoses, in particular to an engine water outlet hose connecting structure, which comprises the following components: the connector comprises a connector body, a water pipe connector, a first pre-tightening piece and a second pre-tightening piece, wherein the connector body comprises a middle corrugated pipe and guide heads fixed at two ends of the middle corrugated pipe, annular baffles are arranged inside the guide heads, supporting rings at the ends of the water pipe connector are in contact with the annular baffles, flow passages communicated with inner cavities of the guide heads are arranged inside the water pipe connector, the first pre-tightening piece comprises an inner thread section, an outer thread section and a clamping part which are sequentially connected left, the inner thread section is in threaded connection with the guide heads and is arranged on the right end face of the support ring in contact with the outer side of the guide heads, the clamping part comprises pressing teeth arranged at intervals, the pre-tightening piece comprises a thread part and a conical pressing part, the thread part is in threaded connection with the outer thread section, the pressing teeth are located on the inner side of the conical pressing part, and angle adjustment is carried out on positions between two ends of the water pipe is allowed through the flexible middle corrugated pipe of the connector body, so that different length requirements are met.

Description

Engine water outlet hose connection structure

Technical Field

The utility model relates to the field of hoses, in particular to an engine water outlet hose connecting structure.

Background

When the engine works at high temperature, the engine is easy to overheat to damage the engine and even burn out, however, the fuel atomization effect is greatly reduced when the engine works at low temperature, so that the fuel is not combusted sufficiently, and the engine is also worn to influence the service life of the engine. Therefore, a thermostat is usually selected for regulating the temperature of the engine, the thermostat automatically regulates the water quantity entering the radiator according to the temperature change of the cooling liquid, and the circulation range of the water is changed, so that the heat radiation capacity of the cooling system is regulated, and the engine is ensured to work in a proper temperature range.

The axis of a water outlet pipe of the existing thermostat, which is opposite to the water pump, is vertical to the pipe orifice of the water outlet pipe, and the distances between the thermostat and the water pump in different automobiles are different, so that the requirements on the length of the connecting structure are different, and the cost is increased; meanwhile, after the common connecting joint is used for a long time, the air tightness of the connecting part is reduced after heat expansion and cold contraction, and leakage is generated.

Disclosure of Invention

The utility model provides an engine water outlet hose connecting structure which is good in air tightness and convenient to connect, and solves the problems in the prior art.

The aim of the utility model can be achieved by the following technical scheme: an engine water hose connection structure includes: the connector comprises a connector body, a water pipe connector, a first pre-tightening member and a second pre-tightening member, wherein the connector body comprises a middle corrugated pipe and guide heads fixed at two ends of the middle corrugated pipe, an annular baffle is arranged inside the guide heads, a supporting ring at the end part of the water pipe connector is in contact with the annular baffle, a flow passage communicated with an inner cavity of the guide heads is arranged inside the water pipe connector, the first pre-tightening member comprises an internal thread section, an external thread section and a clamping part which are sequentially connected left, the internal thread section is in threaded connection with the inside of the guide heads and is in contact with the supporting ring at the right end face, the external thread section is located outside the guide heads, the clamping part comprises pressing teeth arranged at intervals, the second pre-tightening member comprises a thread part and a conical pressing part, the thread part is in threaded connection with the external thread section, and the pressing teeth are located inside the conical pressing part.

Further improvement, the outer end ring of the water pipe joint is provided with stop rings, the stop rings are arranged at intervals, and the section diameter of each stop ring is increased along the insertion direction of the water pipe.

Further improvement, the sealing washer has been joint in the support ring outside.

Further improvement, the right end face of the support ring is provided with a clamping ring block, and the inner side of the annular baffle plate of the guide head is provided with a groove matched with the clamping ring block.

Further improvement, be equipped with rotation portion between internal thread section and the external screw thread section, rotation portion is located the guide head outer terminal surface.

Compared with the prior art, the engine water outlet hose connecting structure has the beneficial effects that:

one end of the water pipe slides inwards along the pressing teeth until the water pipe joint is sleeved until one end of the water pipe abuts against the supporting ring, the water pipe joint is pushed into the guide head to be in contact with the annular baffle, the internal thread section of the first pre-tightening piece is screwed into the internal thread of the guide head, the pre-tightening piece pushes the water pipe joint to be fixedly compressed inside the guide head, the air tightness between the end part of the water pipe joint and the guide head is improved to prevent leakage, the thread section of the second pre-tightening piece is screwed into the external thread section of the first pre-tightening piece, the conical compression part of the second pre-tightening piece pushes the pressing teeth of the clamping part, and the pressing teeth move along the center of the water pipe to clamp the water pipe, so that the water pipe is more tightly attached to the water pipe joint, the air tightness of the water pipe is increased to prevent leakage; the flexible middle corrugated pipe of the connector main body allows the position between two ends of the water pipe to be adjusted in angle, so that different length requirements are met.

Drawings

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

FIG. 2 is a schematic view of the structure of the inside of the present utility model

FIG. 3 is a schematic view of an exploded view of the present utility model

In the figure, the connector comprises a 1-connector body, a 11-middle corrugated pipe, a 12-guide head, a 13-annular baffle, a 131-groove, a 2-water pipe connector, a 21-runner, a 22-supporting ring, a 221-sealing ring, a 222-clamping ring block, a 23-stop ring, a 3-pre-tightening piece I, a 31-internal thread section, a 32-external thread section, a 33-clamping part, a 331-tooth pressing part, a 34-rotating part, a 4-pre-tightening piece II, a 41-thread part, a 42-conical pressing part and a 5-water pipe.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scheme of the utility model is further described below with reference to the examples and the accompanying figures 1-3.

Example 1

An engine water hose connection structure, comprising: the connector comprises a connector body 1, a water pipe connector 2, a first pretension piece 3 and a second pretension piece 4, wherein the connector body 1 comprises a middle corrugated pipe 11 and a guide head 12 fixed at two ends of the middle corrugated pipe 11, an annular baffle 13 is arranged inside the guide head 12, a supporting ring 22 at the end part of the water pipe connector 2 is in contact with the annular baffle 13, a flow passage 21 communicated with an inner cavity of the guide head 12 is arranged inside the water pipe connector 2, the first pretension piece 3 comprises an internal thread section 31, an external thread section 32 and a clamping part 33 which are sequentially connected leftwards, the internal thread section 31 is in threaded connection with the inside of the guide head 12 and is arranged in contact with the supporting ring 22 at the right end face, the external thread section 32 is positioned outside the guide head 12, the clamping part 33 comprises pressing teeth 331 which are arranged at intervals, the second pretension piece 4 comprises a thread part 41 and a conical pressing part 42, the thread part 41 is in threaded connection with the external thread section 32, and the pressing teeth 331 are positioned at the inner side of the conical pressing part 42.

As shown in fig. 1 to 3, the use principle of the present utility model is as follows: firstly, sleeving a first pre-tightening piece 3 and a second pre-tightening piece 4 on a water pipe 5 of a thermostat, then, enabling one end of the water pipe 5 to slide inwards along a pressing tooth 331 until being sleeved into a water pipe joint 2 for a certain distance until one end of the water pipe abuts against a supporting ring 22, then pushing the water pipe joint 2 into the inside of a guide head 12, enabling the supporting ring 22 to be in contact with an annular baffle 13, screwing an inner thread section 31 of the first pre-tightening piece 3 into an inner thread of the guide head 12, fixedly pressing the water pipe joint 2 into the guide head 12 through pushing of the pre-tightening piece 3, improving air tightness between the end of the water pipe joint and the guide head to prevent leakage, and then screwing a thread section 41 of the second pre-tightening piece 4 into an outer thread section 32 of the first pre-tightening piece 3, enabling a conical pressing part 42 of the second pre-tightening piece 4 to push the pressing tooth 331 of a clamping part 33, enabling the pressing tooth 331 to move along the center of the water pipe 5 to clamp the water pipe, enabling the water pipe to be more tightly attached to the water pipe joint, increasing air tightness of the water pipe, and preventing leakage; the water pipe of the water pump is installed on the other side as above, and the position between the two ends of the water pipe is allowed to be angularly adjusted through the flexible middle corrugated pipe 11 of the connector main body 1, so that different length requirements are met.

As a further preferred embodiment, the outer end ring of the water pipe joint 2 is provided with stop rings 23, the stop rings 23 are arranged at intervals, and the diameter of the section of each stop ring 23 is increased along the insertion direction of the water pipe 5. As shown in fig. 2 and 3, the friction force between the water pipe 5 and the water pipe joint 2 is increased by the stop ring 23, so that the possibility of the water pipe being separated under the action of pressure is reduced.

As a further preferred embodiment, a sealing ring 221 is clamped on the outer side of the supporting ring 22, and the sealing performance between the guide head 12 and the water pipe structure 2 is improved through the sealing ring 221.

As a further preferred embodiment, the right end surface of the supporting ring 22 is provided with a clamping ring block 222, the inner side of the annular baffle 13 of the guide head 12 is provided with a groove 131 matched with the clamping ring block 222, and the clamping ring block 222 is matched with the clamping groove 131 to realize positioning and installation of the supporting ring 22.

As a further preferred embodiment, a rotating part 34 is disposed between the internal thread segment 31 and the external thread segment 32, the rotating part 34 is located on the outer end surface of the guide head 12, and the rotation of the pre-tightening piece 3 is facilitated by the rotating part 34.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (5)

1. An engine water hose connection structure, characterized by comprising: the connector comprises a connector body, a water pipe connector, a first pre-tightening member and a second pre-tightening member, wherein the connector body comprises a middle corrugated pipe and guide heads fixed at two ends of the middle corrugated pipe, an annular baffle is arranged inside the guide heads, a supporting ring at the end part of the water pipe connector is in contact with the annular baffle, a flow passage communicated with an inner cavity of the guide heads is arranged inside the water pipe connector, the first pre-tightening member comprises an inner thread section, an outer thread section and a clamping part which are sequentially connected left, the inner thread section is in threaded connection with the inner part of the guide heads and is in contact with the supporting ring at the right end face, the outer thread section is located outside the guide heads, the clamping part comprises pressing teeth arranged at intervals, the second pre-tightening member comprises a thread part and a conical pressing part, the thread part is in threaded connection with the outer thread section, and the pressing teeth are located inside the conical pressing part.

2. The engine water outlet hose connection structure according to claim 1, wherein the outer end ring of the water pipe joint is provided with stop rings, the stop rings are arranged at intervals, and the diameter of the section of the stop rings is increased along the insertion direction of the water pipe.

3. The engine water hose connection structure of claim 1, wherein a sealing ring is clamped on the outer side of the supporting ring.

4. The engine water outlet hose connection structure according to claim 1, wherein the right end face of the supporting ring is provided with a clamping ring block, and the inner side of the annular baffle of the guide head is provided with a groove matched with the clamping ring block.

5. The engine water hose connection structure according to claim 1, wherein a rotating portion is provided between the female screw section and the male screw section, and the rotating portion is located at an outer end face of the guide head.