Nozzle assembly, gas distribution pipe assembly and gas water heater comprising same

Abstract

The utility model provides a nozzle assembly, a gas distribution pipe assembly and a gas water heater comprising the gas distribution pipe assembly. The nozzle assembly comprises a nozzle body, the nozzle body is provided with a fuel gas flow channel, and the nozzle body is provided with an inlet and an outlet which are communicated with the fuel gas flow channel in the axial direction of the fuel gas flow channel; the adjusting part is arranged outside the inlet, and the adjusting part is used for changing the flow of gas entering the gas flow channel from the inlet; and the length of the temperature memory element can be changed in the temperature change process, and the adjusting component is driven by the length change of the temperature memory element to change the flow of gas entering the gas flow channel from the inlet. According to the gas water heater, by arranging the overall structure of the nozzle assembly, the flow of gas entering the gas flow channel from the inlet can be adjusted, so that the flow of the gas can be changed in the using process in summer, and the situation that the temperature of outlet water of the gas water heater is too high is avoided.

Description

Technical Field

[0001] The utility model relates to a nozzle assembly, a gas distribution pipe assembly and a gas water heater comprising the same. Background Art

[0002] As a bathing device, the water temperature of the gas water heater can be adjusted according to human needs. The gas water heater includes a gas distribution pipe, and a plurality of nozzle assemblies are arranged at intervals on the outer shell of the gas distribution pipe. The nozzle assemblies are used for the circulation and distribution of gas to control the temperature of the bath water.

[0003] Since the gas outlet (nozzle assembly) of existing gas water heaters cannot be adjusted, the outlet gas volume cannot be reduced during use in summer, resulting in the problem of too high water outlet temperature of the gas water heater, causing the user's bathing water temperature to be too hot, affecting the user experience. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defect that the gas amount of the gas water heater in the prior art cannot be adjusted, and to provide a nozzle assembly, a gas distribution pipe assembly and a gas water heater containing the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A nozzle assembly, characterized in that it comprises:

[0007] A nozzle body, wherein a gas flow passage is provided in the nozzle body, and an inlet and an outlet communicating with the gas flow passage are respectively provided in the nozzle body along the axial direction of the gas flow passage;

[0008] an adjusting component, the adjusting component being arranged outside the inlet and being used for changing the flow rate of the gas entering the gas flow passage from the inlet;

[0009] A temperature memory element, wherein the temperature memory element can change in length during temperature changes, and the change in the length of the temperature memory element itself drives the regulating component to change the gas flow rate entering the gas flow channel from the inlet.

[0010] In the technical solution, by setting the overall structure of the nozzle assembly, the gas flow rate entering the gas flow channel from the inlet can be adjusted, so that the gas flow rate can be changed during summer use, thereby avoiding the situation where the water outlet temperature of the gas water heater is too high. Specifically, the temperature memory element generates a change in its own length during the change of the ambient temperature, which drives the regulating component to change the gas flow rate entering the gas flow channel from the inlet.

[0011] Preferably, the material of the temperature memory element is paraffin, and the temperature memory element is an annular closed structure; or, the temperature memory element is a memory alloy spring.

[0012] In the present technical solution, different specific ways of setting the temperature memory element are provided through the above settings.

[0013] Preferably, the nozzle body is provided with a mounting groove, the mounting groove is arranged around the outer periphery of the inlet, and the mounting groove is arranged along the axial direction;

[0014] The temperature memory element is arranged in the installation groove.

[0015] In the technical solution, a mounting groove is provided to provide a housing space for the temperature memory element, thereby making the overall structure more compact.

[0016] Preferably, the adjusting component is a claw-type structure, and when the length of the temperature memory element is extended, the claw-type structure is pushed by the temperature memory element to shrink from a first position to a second position that reduces the gas flow entering the gas flow channel; when the length of the temperature memory element is shortened, the adjusting component returns to the first position.

[0017] In the present technical solution, a specific method for setting the adjustment component is provided through the above-mentioned setting.

[0018] Preferably, the nozzle assembly further comprises a transmission component, wherein the transmission component is disposed between the claw-shaped structure and the temperature memory element, the transmission component is an annular closed structure, and the transmission component is coaxially disposed with the gas flow channel.

[0019] In the present technical solution, by providing a transmission component, the change of the temperature memory element can be better transmitted to the claw-type structure, and a more uniform force can be provided to cause the claw-type structure to contract.

[0020] Preferably, the claw-type structure comprises a plurality of claws, the plurality of claws are arranged along the circumferential direction of the inlet, and there is a gap between two adjacent claws in the circumferential direction;

[0021] The claw portion includes a first part and a second part connected to each other, the first part is connected to the nozzle body, and the first part extends obliquely outward from an end close to the nozzle body to an end away from the nozzle body, and the angle formed by the first part and the second part is an acute angle.

[0022] In the present technical solution, a specific method of setting the claw-type structure is provided through the above-mentioned setting.

[0023] A gas distribution pipe assembly is characterized in that the gas distribution pipe assembly comprises a pipe body and the nozzle assembly as described above, and the nozzle assembly is detachably connected to a nozzle mounting hole on the pipe body.

[0024] A gas distribution pipe assembly, characterized in that the gas distribution pipe assembly comprises a pipe body and the nozzle assembly as described above, the nozzle assembly is detachably connected to the nozzle mounting hole on the pipe body, a main flow channel connected to the gas flow channel through the inlet is provided in the pipe body, and an axial direction of the main flow channel forms a non-zero angle with an axial direction of the gas flow channel;

[0025] The regulating component is a cylindrical structure, the cylindrical structure is coaxially arranged with the gas flow passage, and the cylindrical structure can move along the axial direction of the gas flow passage when driven by the temperature memory element.

[0026] In the present technical solution, by setting the specific structure of the regulating component as a cylindrical structure that can move along the axial direction of the gas flow channel, the gas flow area of ​​the main flow channel that forms a non-zero angle with the axial direction of the gas flow channel can be changed, thereby changing the gas flow rate that enters the gas flow channel from the main flow channel through the inlet.

[0027] Preferably, the nozzle assembly comprises a plurality of support arms, the support arms are arranged at intervals around the outer periphery of the inlet and extend along the axial direction of the gas flow channel, and the cylindrical structure is sleeved on the outer side of the support arms.

[0028] In the present technical solution, by providing a support arm, a support function can be provided for the cylindrical structure.

[0029] A gas water heater is characterized in that it comprises the gas distribution pipe assembly as described above.

[0030] The positive and progressive effects of the utility model are:

[0031] The utility model can adjust the gas flow rate entering the gas flow channel from the inlet by setting the overall structure of the nozzle assembly, so that the gas flow rate can be changed during summer use, thereby avoiding the situation where the water outlet temperature of the gas water heater is too high. Specifically, the temperature memory element generates a change in its own length during the change of the ambient temperature, driving the regulating component to change the gas flow rate entering the gas flow channel from the inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the nozzle assembly of Example 1 of the utility model.

[0033] Figure 2It is a schematic diagram of the three-dimensional exploded structure of the nozzle assembly of Example 1 of the utility model.

[0034] Figure 3 This is a schematic cross-sectional structural diagram of the nozzle assembly of Example 1 of the utility model.

[0035] Figure 4 It is a partial cross-sectional structural schematic diagram of the nozzle assembly of Example 1 of the utility model from another angle.

[0036] Figure 5 This is a schematic diagram of the top view of the nozzle assembly of Example 1 of the utility model.

[0037] Figure 6 This is a schematic cross-sectional structural diagram of a gas distribution pipe assembly according to Example 1 of the utility model.

[0038] Figure 7 This is a schematic cross-sectional structural diagram of a gas distribution pipe assembly according to Example 2 of the utility model.

[0039] Figure 8 for Figure 7 A partial enlarged view of part A.

[0040] Fig. 9 It is a schematic diagram of the three-dimensional structure of the nozzle assembly of Example 2 of the utility model.

[0041] Fig.10 It is a schematic diagram of the three-dimensional exploded structure of the nozzle assembly of Example 2 of the utility model.

[0042] Fig.11 It is a partial cross-sectional structural schematic diagram of the nozzle assembly of Example 2 of the utility model.

[0043] Description of Reference Numerals

[0044] Gas distribution pipe assembly 1

[0045] Nozzle assembly 10

[0046] Nozzle body 11

[0047] Gas flow channel 111

[0048] Import 112

[0049] Exit 113

[0050] Mounting slot 114

[0051] Temperature memory element 13

[0052] Cylindrical structure 15

[0053] Claw structure 16

[0054] Claw 161

[0055] Part I 1611

[0056] Part II 1612

[0057] Transmission parts 17

[0058] Support arm 18

[0059] Tube body 20

[0060] Nozzle mounting hole 21

[0061] Main channel 22

[0062] The first angle α

[0063] The second angle β

[0064] Axial direction of gas flow channel P

[0065] The axial direction of the main channel DETAILED DESCRIPTION

[0066] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0067] Example 1

[0068] like Figure 1-Figure 5 As shown, this embodiment provides a nozzle assembly 10 , which includes: a nozzle body 11 , an adjustment component, and a temperature memory element 13 .

[0069] A gas flow passage 111 is disposed in the nozzle body 11 . An inlet 112 and an outlet 113 communicating with the gas flow passage 111 are respectively formed in the nozzle body 11 along an axial direction P of the gas flow passage 111 .

[0070] The regulating component is disposed outside the inlet 112 , and is used to change the flow rate of the gas entering the gas flow channel 111 from the inlet 112 .

[0071] The temperature memory element 13 can change its length during the temperature change, and the change in the length of the temperature memory element 13 itself drives the regulating component to change the gas flow rate entering the gas flow channel 111 from the inlet 112 .

[0072] In this way, by setting the overall structure of the nozzle assembly 10, the gas flow rate entering the gas flow channel 111 from the inlet 112 can be adjusted, so that the gas flow rate can be changed during summer use, thereby avoiding the situation where the water outlet temperature of the gas water heater is too high. Specifically, the change in the length of the temperature memory element 13 during the change in ambient temperature drives the adjustment component to change the gas flow rate entering the gas flow channel 111 from the inlet 112.

[0073] Specifically, the temperature memory element 13 is a memory alloy spring. However, it is not limited thereto. In other embodiments, the temperature memory element 13 is made of paraffin and is an annular closed structure, or other components that can change length accordingly with temperature changes. The nozzle body 11 is made of metal, preferably copper, to have better strength, heat resistance and thermal conductivity.

[0074] In this embodiment, the nozzle body 11 is provided with a mounting groove 114, which is arranged around the outer periphery of the inlet 112 and arranged along the axial direction P; the temperature memory element 13 is arranged in the mounting groove 114. In this way, by providing the mounting groove 114, a space for accommodating the temperature memory element 13 is provided, so that the overall structure is more compact.

[0075] Specifically, the adjusting component is a claw-shaped structure 16. When the length of the temperature memory element 13 is extended, the claw-shaped structure 16 is pushed by the temperature memory element 13 to shrink from the first position to the second position for reducing the gas flow rate entering the gas flow channel 111; when the length of the temperature memory element 13 is shortened, the adjusting component returns to the first position. The claw-shaped structure 16 can return to the first position by its own restoring force, that is, the claw-shaped structure 16 is an elastic structure, and can rebound to the initial state after the force that shrinks it is removed; or the claw-shaped structure 16 can be pulled back to the first position by the shortening of the temperature memory element 13.

[0076] In this embodiment, the nozzle assembly 10 further includes a transmission component 17, which is disposed between the claw structure 16 and the temperature memory element 13. The transmission component 17 is an annular closed structure, and the transmission component 17 is coaxially disposed with the gas flow channel 111. In this way, by arranging the transmission component 17, the change of the temperature memory element 13 can be better transmitted to the claw structure 16, and a more uniform force can be provided to shrink the claw structure 16. One end of the transmission component 17 is disposed in the mounting groove 114 and connected to the temperature memory element 13. The connection method can be a fixed connection or abutment.

[0077] Further, the claw structure 16 includes a plurality of claws 161, and the plurality of claws 161 are arranged along the circumferential direction of the inlet 112, and there is a gap between two adjacent claws 161 in the circumferential direction. Preferably, in the present embodiment, the number of claws 161 is four, which can better adjust the gas flow entering the inlet 112. However, it is not limited thereto. In other embodiments, the number of claws 161 is six, so that when the claw structure 16 is in the second position, the gas flow entering the inlet 112 can be reduced. The number of claws 161 cannot be too few or too many, so as to avoid failing to achieve the effect of adjusting the gas flow entering the inlet 112. Preferably, the number of claws 161 is an even number, so as to facilitate manufacturing. One end of the claw 161 is fixed at the outer edge of the inlet 112.

[0078] The claw portion 161 includes a first portion 1611 and a second portion 1612 connected to each other. The first portion 1611 is connected to the nozzle body 11 and extends obliquely outward from an end close to the nozzle body 11 to an end away from the nozzle body 11. The first angle α formed by the first portion 1611 and the second portion 1612 is an acute angle.

[0079] Preferably, the second angle β formed by the first portion 1611 and the side wall of the gas flow channel 111 is 120 degrees to 150 degrees. By setting the range of the second angle β, the claw-shaped structure 16 can be better contracted.

[0080] The working principle of the nozzle assembly 10 of this embodiment is as follows:

[0081] When the temperature memory element 13 is extended along the axial direction P as the ambient temperature increases, the transmission component 17 is extended along the axial direction P under the action of the temperature memory element 13. Figure 1 The movement in the direction of the arrow F pushes the claw structure 16, so that the diameter d of the gas flow cross section at the inlet of the nozzle body 11 is reduced (such as Figure 5 ), the gas flow rate is reduced, thereby reducing the outlet water temperature of the gas water heater. This state is suitable for summer when the ambient temperature is high, to ensure that the water temperature is cool enough for bathing in summer.

[0082] When the temperature memory element 13 is shortened along the axial direction P as the ambient temperature decreases, the transmission component 17 is moved along the axial direction P under the action of the temperature memory element 13. Figure 1 The movement in the opposite direction of the middle arrow F relaxes the claw structure 16, so that the diameter d of the gas flow cross section at the inlet of the nozzle body 11 increases, the gas flow increases, and thus the outlet water temperature of the gas water heater is increased. This state is suitable for winter when the ambient temperature is low, to ensure that the water temperature is hot enough when bathing in winter.

[0083] It should be noted that the gas flow cross section at the inlet of the nozzle body 11 includes not only Figure 5The dotted annular portion shown in the figure also includes a gap portion between two adjacent claws 161 in the circumferential direction. For a more intuitive description, only the dotted annular portion is indicated.

[0084] like Figure 6 As shown, this embodiment further provides a gas distribution pipe assembly 1, which includes a pipe body 20 and the nozzle assembly 10 as described above. The nozzle assembly 10 is detachably connected to the nozzle mounting hole 21 on the pipe body 20.

[0085] This embodiment also provides a gas water heater, which includes the gas distribution pipe assembly 1 as described above.

[0086] This embodiment can adjust the gas flow rate entering the gas flow channel 111 from the inlet 112 by setting the overall structure of the nozzle assembly 10, so that the gas flow rate can be changed during summer use, thereby avoiding the situation where the water outlet temperature of the gas water heater is too high.

[0087] Example 2

[0088] like Figure 7-Figure 11 As shown, the overall structure of the nozzle assembly 10, the gas distribution pipe assembly 1 and the gas water heater including the same in this embodiment is basically the same as the structure in Example 1, except that a main flow channel 22 connected to the gas flow channel 111 through an inlet 112 is provided in the pipe body 20 of the gas distribution pipe assembly 1, and the axial direction p of the main flow channel 22 forms a non-zero angle with the axial direction P of the gas flow channel 111; the adjusting component is a cylindrical structure 15, the cylindrical structure 15 is coaxially arranged with the gas flow channel 111, and the cylindrical structure 15 can move along the axial direction P of the gas flow channel 111 driven by the temperature memory element 13.

[0089] In this way, by setting the specific structure of the regulating component as a cylindrical structure 15 that can move along the axial direction P of the gas flow channel 111, the gas flow area of ​​the main flow channel 22 that forms a non-zero angle with the axial direction P of the gas flow channel 111 can be changed, thereby changing the gas flow rate from the main flow channel 22 to the gas flow channel 111 through the inlet 112.

[0090] Specifically, when the temperature memory element 13 lengthens as the ambient temperature increases, the cylindrical structure moves from the initial position to the working position for reducing the gas flow entering the gas flow channel 111 under the push of the temperature memory element 13; when the temperature memory element 13 shortens as the ambient temperature decreases, the cylindrical structure returns to the initial position from the working position under the pull of the temperature memory element 13.

[0091] Preferably, the angle formed by the axial direction p of the main channel 22 and the axial direction P of the gas channel 111 is 90 degrees, that is, the axial direction p of the main channel 22 is perpendicular to the axial direction P of the gas channel 111 .

[0092] Further, the nozzle assembly 10 includes a plurality of support arms 18, which are arranged at intervals around the outer periphery of the inlet 112 and extend along the axial direction P of the gas flow channel 111, and the cylindrical structure 15 is sleeved on the outer side of the support arms 18. In this way, by providing the support arms 18, a support function can be provided for the cylindrical structure.

[0093] In this embodiment, the material of the temperature memory element 13 is paraffin, and the temperature memory element 13 is a ring-shaped closed structure.

[0094] The working principle of the nozzle assembly 10 of this embodiment is as follows:

[0095] When the temperature memory element 13 is extended along the axial direction P of the gas flow passage 111 as the ambient temperature increases, the cylindrical structure 15 is extended along the axial direction P of the gas flow passage 111 under the action of the temperature memory element 13. Fig. 9 The movement in the direction of the middle arrow F causes the cylindrical structure 15 to move along the axial direction P of the gas flow channel 111 toward the central axis of the main flow channel 22, that is, to reduce the flow area of ​​the main flow channel 22, thereby reducing the gas flow entering the gas flow channel 111, thereby reducing the outlet water temperature of the gas water heater. This state is suitable for summer when the ambient temperature is high, to ensure that the water temperature is cool enough for bathing in summer.

[0096] When the temperature memory element 13 is reduced along the axial direction P of the gas flow passage 111 as the ambient temperature decreases, the cylindrical structure 15 is moved along the axial direction P of the gas flow passage 111 under the action of the temperature memory element 13. Fig. 9 The movement in the opposite direction of the middle arrow F causes the cylindrical structure 15 to move away from the central axis of the main channel 22 along the axial direction of the gas flow channel 111, that is, to increase the flow area of ​​the main channel 22, thereby increasing the gas flow entering the gas flow channel 111, thereby increasing the outlet water temperature of the gas water heater. This state is suitable for winter when the ambient temperature is low, to ensure that the water temperature is hot enough for bathing in winter.

[0097] This embodiment can adjust the gas flow rate entering the gas flow channel 111 from the inlet 112 by setting the overall structure of the nozzle assembly 10, so that the gas flow rate can be changed during summer use, thereby avoiding the situation where the water outlet temperature of the gas water heater is too high.

[0098] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A nozzle assembly, characterized in that: It includes: A nozzle body, wherein a gas flow passage is provided in the nozzle body, and an inlet and an outlet communicating with the gas flow passage are respectively provided in the nozzle body along the axial direction of the gas flow passage; an adjusting component, the adjusting component being arranged outside the inlet and being used for changing the flow rate of the gas entering the gas flow passage from the inlet; A temperature memory element, wherein the temperature memory element can change in length during temperature changes, and the change in the length of the temperature memory element itself drives the regulating component to change the gas flow rate entering the gas flow channel from the inlet.

2. The nozzle assembly according to claim 1, characterized in that The material of the temperature memory element is paraffin, and the temperature memory element is a ring-shaped closed structure; or, the temperature memory element is a memory alloy spring.

3. The nozzle assembly according to claim 1, characterized in that The nozzle body is provided with a mounting groove, the mounting groove is arranged around the outer periphery of the inlet, and the mounting groove is arranged along the axial direction; The temperature memory element is arranged in the installation groove.

4. The nozzle assembly according to claim 1, characterized in that The adjusting component is a claw-type structure. When the length of the temperature memory element is extended, the claw-type structure is pushed by the temperature memory element to shrink from a first position to a second position that reduces the gas flow entering the gas flow channel; when the length of the temperature memory element is shortened, the adjusting component returns to the first position.

5. The nozzle assembly according to claim 4, characterized in that The nozzle assembly further includes a transmission component, which is disposed between the claw-shaped structure and the temperature memory element. The transmission component is an annular closed structure, and the transmission component is coaxially disposed with the gas flow channel.

6. The nozzle assembly according to claim 4, characterized in that The claw-type structure includes a plurality of claws, the plurality of claws are arranged along the circumferential direction of the inlet, and there is a gap between two adjacent claws in the circumferential direction; The claw portion includes a first part and a second part connected to each other, the first part is connected to the nozzle body, and the first part extends obliquely outward from an end close to the nozzle body to an end away from the nozzle body, and the angle formed by the first part and the second part is an acute angle.

7. A gas distribution pipe assembly, characterized in that: The gas distribution pipe assembly comprises a pipe body and a nozzle assembly as claimed in any one of claims 1 to 6, wherein the nozzle assembly is detachably connected to a nozzle mounting hole on the pipe body.

8. A gas distribution pipe assembly, characterized in that: The gas distribution pipe assembly comprises a pipe body and a nozzle assembly as claimed in any one of claims 1 to 3, wherein the nozzle assembly is detachably connected to a nozzle mounting hole on the pipe body, a main flow channel connected to the gas flow channel through the inlet is provided in the pipe body, and an axial direction of the main flow channel forms a non-zero angle with an axial direction of the gas flow channel; The regulating component is a cylindrical structure, the cylindrical structure is coaxially arranged with the gas flow passage, and the cylindrical structure can move along the axial direction of the gas flow passage when driven by the temperature memory element.

9. The gas distribution pipe assembly according to claim 8, characterized in that: The nozzle assembly comprises a plurality of support arms, which are arranged at intervals around the outer periphery of the inlet and extend along the axial direction of the gas flow channel, and the cylindrical structure is sleeved on the outer side of the support arms.

10. A gas water heater, characterized in that: The gas water heater comprises a gas distribution pipe assembly as described in any one of claims 7-9.

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