CN210638297U - Gas water heater and exhaust pipe thereof - Google Patents

Abstract

The utility model relates to a daily utensil technical field, concretely relates to gas heater and blast pipe thereof. This blast pipe includes body and pipe tail, the pipe tail has air inlet and the gas vent of mutual intercommunication, the axis of air inlet with preset the contained angle between the axis of gas vent, the air inlet of pipe tail with the body intercommunication, just be in the circumference of air inlet, the pipe tail with the body rotates and is connected. The utility model provides an even if this kind of blast pipe is great in the course of the work, also can not appear exhausting smoothly basically, the phenomenon that waste gas flows backward even, and the security is higher relatively.

Description

Gas water heater and exhaust pipe thereof

Technical Field

The utility model relates to a daily utensil technical field, concretely relates to gas heater and blast pipe thereof.

Background

The gas water heater can be used immediately after being opened, waiting is not needed, and the advantages of small occupied area and the like are pursued by users. And in the aspect of safety, the gas water heater realizes the separation of heat production and heat supply, and avoids the electric leakage danger generated in the bathing process. In the process of installing the gas water heater, the exhaust pipe of the gas water heater needs to be installed outdoors to discharge exhaust gas. However, if strong wind weather occurs, the gas water heater is likely to have the situations of unsmooth air exhaust and backflow of waste gas, which seriously affects the safety performance of the gas water heater and also has great threat to the personal safety of users.

SUMMERY OF THE UTILITY MODEL

The utility model discloses (one) the technical problem that solve is: in strong wind weather, the exhaust pipe is easy to have the conditions of unsmooth exhaust and backflow of waste gas, and adverse effects are possibly brought to the safety of equipment and users.

(II) technical scheme

In order to realize the technical problem, the utility model provides a blast pipe, it includes body and pipe tail, the pipe tail has air inlet and the gas vent of mutual intercommunication, the axis of air inlet with preset the contained angle between the axis of gas vent, the air inlet of pipe tail with the body intercommunication, and be in the circumference of air inlet, the pipe tail with the body rotates to be connected.

Optionally, the angle between the axis of the air inlet and the axis of the air outlet is 90 °.

Optionally, be close to on the pipe tail the tip surface of gas vent is provided with two at least vortex wings, follows the circumference of gas vent, two at least contained angle between the vortex wing is greater than 90.

Optionally, the spoiler is provided with two, follows along the circumference of gas vent, two the contained angle between the spoiler is 180.

Optionally, the spoiler is a flat plate-shaped structure.

Optionally, the spoiler is right trapezoid structure, the lower base of spoiler with the pipe tail is connected, the relative hypotenuse waist of right angle waist of spoiler is closer to the gas vent.

Optionally, one of the tube body and the tube tail is provided with an annular groove, the other is provided with at least one clamping part, and each clamping part extends into the annular groove to rotatably connect the tube body and the tube tail.

Optionally, the clamping portion is a spherical convex point, and the maximum diameter of the spherical convex point is smaller than the minimum distance between the two side walls of the groove.

Optionally, the clamping parts are provided in a plurality, and the plurality of clamping parts are uniformly arranged along the circumferential direction of the air inlet.

Optionally, the clamping part is arranged on the inner side wall of the pipe tail, and the groove is arranged on the outer side wall of the pipe body.

Optionally, the utility model provides an exhaust pipe still includes elbow fitting, elbow fitting connects the body is kept away from the one end of pipe tail.

Optionally, the utility model provides an blast pipe still includes prevents down-draught joint, prevent down-draught joint connects and keeps away from at elbow fitting the one end of body.

The second aspect of the present invention further provides a gas water heater, which comprises a body and an exhaust pipe provided at any one of the body and the exhaust pipe.

(III) advantageous effects

The utility model provides an exhaust pipe can use on equipment such as gas heater, the exhaust pipe is including the pipe tail and the body of mutual intercommunication, the pipe tail rotates with the body to be connected, thereby under strong wind weather, if the exhaust direction of gas vent is to natural wind, then the pipe tail can rotate to the body under the effect of wind force, because the air inlet of pipe tail and the gas vent have between the axis of the two and predetermine the contained angle, thereby after the pipe tail rotates certain angle under the effect of wind force, the exhaust direction of gas vent produces certain contained angle promptly and between the wind direction, and then the effect of stopping exhaust that wind force acted on the blast pipe can reduce, prevent that the blast pipe from appearing airing exhaust unsmooely, the phenomenon of even waste gas flowing backward, promote the security of blast pipe.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an exhaust pipe according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a pipe body in an exhaust pipe according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a pipe tail in an exhaust pipe according to an embodiment of the present invention;

fig. 4 is a schematic view of a partial structure of a gas water heater provided by an embodiment of the present invention.

Reference numerals

1-a pipe body; 11-a groove; 2-pipe tail; 20-an air inlet; 21-a spoiler; 22-a catch; 3-anti-downdraft joint; 4-elbow joint; 5-body.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

As shown in fig. 1, the present invention provides an exhaust pipe, which can be used in a gas water heater or a stove to provide a function of exhausting exhaust gas. The exhaust pipe comprises a pipe body 1 and a pipe tail 2, wherein the pipe tail 2 is provided with an air inlet 20 and an air outlet (not shown in the figure), and the pipe tail 2 is communicated with the pipe body 1 through the air inlet 20 so as to guide the waste gas in the pipe body 1 to the outside; the pipe tail 2 is rotationally connected with the pipe body 1, so that the relative position between the pipe tail and the pipe body can be changed under the action of external force; moreover, because the axis of the air inlet 20 of the tube tail 2 and the axis of the air outlet both have a preset included angle, and in the using process of the exhaust tube, the position of the tube body 1 is not changed basically, therefore, when the tube tail 2 rotates relative to the tube body 1, the orientation of the air outlet is changed, so the embodiment of the utility model provides a changeable exhaust direction of the exhaust tube.

In the in-service use process, if under the great condition of outdoor natural wind, when the pipe tail 2 receives wind power effect, its orientation can change according to the difference of wind direction, and the final orientation of pipe tail 2 can be stabilized in the leeward side, under this condition, the blast pipe is at carminative in-process, even if outdoor wind-force is great relatively, because the final exhaust direction of blast pipe is in the same direction as external wind direction, natural wind also can not produce great adverse effect to the exhaust process of blast pipe, and then can guarantee that blast pipe and the equipment that adopts this blast pipe have higher security performance relatively.

Specifically, body 1 and pipe tail 2 can choose for use materials such as metal, plastics or rubber to make, and its specific size and shape can be confirmed according to actual conditions, and preferably, the major structure of body 1 and pipe tail 2 all can be cylindric hollow tube, and the two of being convenient for on the one hand changes the whole trend of blast pipe according to the difference of installation condition, and on the other hand can also reduce the processing degree of difficulty of whole blast pipe. The tube body 1 and the tube tail 2 can be formed in an integrated forming mode so as to ensure that the tube body and the tube tail have higher structural strength and air tightness; the inlet 20 and the outlet of the pipe tail 2 may be circular ports, and may be made to have substantially the same size, and the preset included angle between the axis of the inlet 20 and the axis of the outlet may be selected according to practical situations, for example, the included angle between the two axes may be 30 °, 60 °, 90 ° or other angles, and is not limited specifically herein. The rotating fit relation between the pipe body 1 and the pipe tail 2 can be realized by means of components such as similar bearings, or the structure of annular grooves and protrusions which are matched with each other can be used for forming reliable rotating connection relation between the pipe body 1 and the pipe tail 2, and of course, the structure of the rotating connection relation formed between the pipe tail 2 and the pipe body 1 is also multiple, and the structure is not illustrated one by one here.

Further, as shown in fig. 1 and 3, an included angle between an axis of the air inlet 20 and an axis of the air outlet may be 90 °, in this case, in a process that the tube tail 2 rotates relative to the tube body 1, a range in which an orientation of the air outlet of the tube tail 2 can be changed is relatively large, and after the tube tail 2 is acted by wind, the included angle between the air outlet and a downwind direction is smaller, even 0, in this case, in a process that the exhaust pipe exhausts through the air outlet, an exhaust process is basically not influenced by the wind, and under a condition of the downwind direction, under an influence of air pressure, exhaust gas in the exhaust pipe is more easily exhausted from the exhaust pipe, so that exhaust efficiency is improved, and a risk that the exhaust gas stays in the exhaust pipe is further reduced. It should be noted that, under the influence of factors such as machining precision or slight deformation of products, the scheme that the included angle between the axis of the air inlet 20 and the axis of the air outlet is close to 90 degrees but is not completely equal to 90 degrees is also within the protection scope of the present invention.

Preferably, the outer surface of the end part of the pipe tail 2 close to the exhaust port may be further provided with at least two spoiler wings 21, and the included angle between the at least two spoiler wings 21 may be greater than 90 ° in the circumferential direction of the exhaust port. In detail, through installing spoiler 21 on tube tail 2, can further promote the sensitivity of induction of tube tail 2 to natural wind, and under the relatively less condition of external natural wind, under spoiler 21's effect, tube tail 2 can stop in the same direction as the wind more fast and more steadily under the side, and this can further reduce the hindrance effect that external natural wind carried out exhaust work to the blast pipe and produced. Accordingly, by making the included angle between at least two spoiler wings 21 larger than 90 °, it is possible to prevent the spoiler effect that the spoiler wings 21 should have from being reduced or even lost due to the close arrangement of the plurality of spoiler wings 21.

Specifically, the spoiler 21 may have a flat plate-like structure or a broken-line plate-like structure, and of course, the spoiler 21 may have a structure of another shape, and preferably, the spoiler 21 has a flat plate-like structure. The spoiler wings 21 may be made of a material having relatively high hardness, such as plastic or metal, to ensure that it has a relatively high structural strength, and to prevent the spoiler wings 21 from being deformed in the process of being exposed to wind, thereby affecting the normal rotation of the pipe tail 2. The specific size and shape of the spoiler 21 may be flexibly determined according to practical situations, and is not limited herein.

Further, as shown in fig. 3, the spoiler wings 21 can be provided with two, two spoiler wings 21 all connect the tip surface at exhaust port place on the pipe tail 2, and, in the circumference of exhaust port, can make the contained angle between two spoiler wings 21 be 180, under this condition, two spoiler wings 21 can be located the coplanar basically, thereby when whole blast pipe receives the wind power effect, the atress is more balanced, correspondingly, when pipe tail 2 removes, its action is also more stable, when whole pipe tail 2 is in the same direction as the wind direction, the position and the orientation of pipe tail 2 are also more stable, difficult emergence is changed, this can further promote the spoiler effect that whole spoiler wings 21 produced to pipe tail 2 adaptation wind direction.

Specifically, the structure and the size of the two spoiler wings 21 may be the same, and the installation form and the direction of the two spoiler wings 21 on the tube tail 2 may also be the same, in which case, the overall spoiler effect of the two spoiler wings 21 on the entire tube tail 2 may be further improved.

Preferably, the spoiler 21 may be a right-angled trapezoid structure, and when the spoiler 21 of such a structure is acted by the airflow, the forces acting on the tube tail 2 are relatively balanced; in addition, in the process of installing the spoiler 21, the spoiler 21 can be connected with the pipe tail 2 by means of the lower bottom edge of the spoiler 21, and the right-angle waist of the spoiler 21 is closer to the exhaust port than the bevel waist, and under the condition, the bevel waist of the spoiler 21 can also provide a flow guiding effect. Particularly, the pipe tail 2 when the blast pipe rotates under the wind-force effect, and finally when stabilizing in a position, the exhaust direction is the same basically with the wind direction, at this moment, outdoor movement's air current can pass through the hypotenuse waist of vortex wing 21 earlier, then just reach right angle waist department, because the lower base and the pipe tail 2 of vortex wing 21 are connected, and the structure of hypotenuse waist is the slope structure, therefore the hypotenuse waist of vortex wing 21 can provide the guide effect for the air current, and then can prevent that the condition of rocking or vibrations from appearing in the course of the work of vortex wing 21, influence the normal work of pipe tail 2, cause the condition that mutual separation appears between pipe tail 2 and body 1 even. As shown in fig. 3, it should be noted that, in two waists of the spoiler 21 in the shape of the right trapezoid, the right-angled waist of the spoiler 21 is a waist in which two adjacent inner angles are right-angled, and the other waist opposite to the right-angled waist is the aforementioned hypotenuse waist.

Specifically, in the case where the spoiler 21 has a flat plate-like structure or an approximately flat plate-like structure, the axial lines of the spoiler 21 and the exhaust port may be parallel to each other, and in this case, the function of the spoiler 21 may be exerted to the maximum extent, so that the exhaust direction and the wind direction are maintained the same, thereby preventing the occurrence of unsmooth exhaust or even backflow of exhaust gas.

Optionally, one of the tube body 1 and the tube tail 2 may be provided with a circular groove 11, and the other may be provided with at least one clamping portion 22, so that the tube body 1 and the tube tail 2 may form a reliable rotational connection relationship by extending the clamping portion 22 into the groove 11. In detail, the circular groove 11 can be disposed on the tube body 1, and also can be disposed on the tube tail 2, and correspondingly, the holding portion 22 can be disposed on the tube tail 2, and also can be disposed on the tube body 1, when the circular groove 11 is disposed on the tube body 1, the tube tail 2 can be sleeved on the tube body 1, and when the circular groove 11 is disposed on the tube tail 2, the tube body 1 can be sleeved on the tube tail 2.

Specifically, the size of the circular groove 11 can be determined according to the size of the pipe body 1 or the pipe tail 2, the size of the clamping part 22 can be selected according to the distance between the two side walls of the groove 11, and the pipe body 1 and the pipe tail 2 can be ensured to have the capability of mutual rotation by enabling the clamping part 22 to rotate in the circular groove 11. More specifically, the circular groove 11 may be directly formed along with the forming process of the tube body 1 or the tube tail 2, and the distance between any positions on the two side walls of the groove 11 may be equal, and the retaining portion 22 may be a block or a strip structure, which is not limited herein.

More specifically, the retaining portion 22 may be a spherical protruding point, and the maximum diameter of the spherical protruding point is smaller than the minimum distance between two sidewalls of the groove 11, the spherical protruding point-shaped retaining portion 22 is easier to be installed in the groove 11, and in the process of mutual rotational fit between the tube body 1 and the tube tail 2, the movable fit process between the retaining portion 22 and the groove 11 is more stable and smoother, and the retaining portion 22 is less prone to generate a clamping stagnation phenomenon between the tube body 1 and the tube tail 2 due to rigid collision with the groove 11. In addition, in the process of assembling the tube body 1 and the tube tail 2, the interference surface between the clamping part 22 of the spherical convex point structure and the tube body 1 (or the tube tail 2) is smaller, and the assembling difficulty between the tube body 1 and the tube tail 2 is lower. In addition, in order to ensure that the connection relationship between the retaining part 22 of the spherical convex point structure and the tube body 1 (or the tube tail 2) is reliable, preferably, the retaining part 22 may be a hemispherical structure, so that the area of the connection surface between the retaining part 22 and the tube body 1 (or the tube tail 2) is relatively large.

Preferably, as shown in fig. 2 and 3, the holding part 22 may be disposed on the inner side of the tube tail 2, the groove 11 may be disposed on the outer side of the tube body 1, and during the process of assembling the tube body 1 and the tube tail 2, the tube tail 2 can be sleeved on the outer side of the tube body 1, and at the same time, the holding part 22 may be held in the groove 11, so as to connect the tube body 1 and the tube tail 2 together, and a reliable rotational connection relationship may be formed between the two; moreover, because the pipe tail 2 is sleeved on the outer side of the pipe body 1, even if a small gap exists between the pipe tail 2 and the pipe body 1, under the combined action of external air pressure, waste gas driving force and other acting forces, the phenomenon of waste gas leakage can not occur basically, and therefore the exhaust pipe has high safety performance. In order to further improve the connection reliability between the pipe body 1 and the pipe tail 2, preferably, a plurality of clamping parts 22 may be provided, and the plurality of clamping parts 22 may be uniformly arranged along the circumferential direction of the air inlet 20, so that the connection reliability between the pipe tail 2 and the pipe body 1 can be further improved under the combined action of the plurality of clamping parts 22; meanwhile, in the working process of the exhaust pipe, the pipe tail 2 can also apply force perpendicular to the axial direction of the exhaust port to the pipe body 1 under the action of self gravity, and the connection reliability between the pipe body 1 and the pipe tail 2 can be further improved under the action of the force.

Further, as shown in fig. 1, in order to promote the installation convenience of this blast pipe, the embodiment of the utility model provides an exhaust pipe can also include elbow fitting 4, and elbow fitting 4 connects the one end of keeping away from pipe tail 2 at body 1, with the help of elbow fitting 4, can reduce the installation degree of difficulty of whole blast pipe, and with the help of elbow fitting 4 for body 1's orientation is unrestricted basically with the trend. The elbow 4 may also be a telescopic pipe so that the length of the entire exhaust pipe can be raised to some extent.

Further, as shown in fig. 4, the utility model provides an exhaust pipe can also be including preventing down draught joint 3, prevents down draught and can be provided with the part similar to the check valve in the joint 3, further prevents that this exhaust pipe from receiving the effect of external natural wind, and the phenomenon that exhaust is smooth or even waste gas flows backward appears, and this can promote the security of whole exhaust pipe once more. Specifically, the anti-downdraft joint 3 may be connected to an end of the elbow joint 4 away from the pipe body 1, and in order to ensure high air tightness between the two, the two may be combined by a waterproof tape or the like.

Based on the blast pipe that any above-mentioned embodiment provided, as shown in fig. 4, the embodiment of the utility model provides a gas heater is still provided, it includes the blast pipe that body 5 and any above-mentioned embodiment provided, body 5 and 1 intercommunication of body of blast pipe have the burning chamber in the body 5, the waste gas that the gas heater burning produced can be discharged with the help of the blast pipe, the gas vent setting of pipe tail 2 is outdoor, and its orientation can corresponding change under wind-force effect to the phenomenon that exhaust is not smooth or even waste gas flows backward can not appear basically, and the security is higher relatively.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (13)

1. The utility model provides an exhaust pipe, its characterized in that, includes body (1) and pipe tail (2), pipe tail (2) have air inlet (20) and the gas vent of mutual intercommunication, the axis of air inlet (20) with the contained angle is predetermine to having between the axis of gas vent, the air inlet (20) of pipe tail (2) with body (1) intercommunication, and in the circumference of air inlet (20), pipe tail (2) with body (1) rotates and is connected.

2. An exhaust pipe according to claim 1, characterized in that the angle between the axis of the inlet port (20) and the axis of the exhaust port is 90 °.

3. The exhaust pipe according to claim 1, characterized in that the outer surface of the end portion of the pipe tail (2) close to the exhaust port is provided with at least two flow disturbing wings (21), and the included angle between at least two flow disturbing wings (21) is larger than 90 ° in the circumferential direction of the exhaust port.

4. An exhaust pipe according to claim 3, wherein the spoiler (21) is provided in two, and an angle between the two spoiler wings (21) is 180 ° in a circumferential direction of the exhaust port.

5. An exhaust pipe according to claim 3, wherein the spoiler (21) has a plate-like structure.

6. An exhaust pipe according to claim 3, wherein the spoiler (21) has a right trapezoid structure, a lower base of the spoiler (21) is connected to the pipe tail (2), and a right-angled waist of the spoiler (21) is closer to the exhaust port than a hypotenuse waist.

7. Exhaust pipe according to claim 1, characterized in that one of the pipe body (1) and the pipe end (2) is provided with an annular groove (11) and the other is provided with at least one catch (22), each catch (22) extending into the annular groove (11) for rotatably connecting the pipe body (1) and the pipe end (2).

8. The exhaust pipe according to claim 7, wherein the retaining portion (22) is a spherical convex point, and the maximum diameter of the spherical convex point is smaller than the minimum distance between the two side walls of the groove (11).

9. The exhaust pipe according to claim 8, wherein the chucking portion (22) is provided in plurality, and the plurality of chucking portions (22) are uniformly provided in a circumferential direction of the intake port (20).

10. The exhaust pipe according to claim 7, characterized in that the retaining part (22) is arranged on the inner side wall of the pipe tail (2), and the groove (11) is arranged on the outer side wall of the pipe body (1).

11. An exhaust pipe according to claim 1, further comprising an elbow joint (4), the elbow joint (4) being connected to an end of the pipe body (1) remote from the pipe tail (2).

12. An exhaust pipe according to claim 11, further comprising a down draft prevention joint (3), wherein the down draft prevention joint (3) is connected to an end of the elbow joint (4) remote from the pipe body (1).

13. A gas water heater, characterized in that it comprises a body (5) and an exhaust pipe according to any one of claims 1 to 12, said body (5) being in communication with the body (1) of said exhaust pipe.

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