CN219014664U

CN219014664U - Water heater thermometer and water heater

Info

Publication number: CN219014664U
Application number: CN202223054685.7U
Authority: CN
Inventors: 李帅; 蔡想周; 刘洋; 杨涛; 徐伟; 李志达; 王宾
Original assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-05-12
Anticipated expiration: 2032-11-17

Abstract

The utility model belongs to the technical field of water heaters, and discloses a water heater thermometer and a water heater, wherein the thermometer comprises a mounting shell, a connecting hole is formed in an outer barrel of the water heater, the mounting shell comprises an outer shell and a penetrating part protruding from the outer shell, the penetrating part penetrates through the connecting hole in the outer barrel, the outer shell is abutted to the outer wall of the outer barrel, a material blocking structure is further arranged on the outer shell and surrounds the periphery of the penetrating part at intervals, and after the mounting shell is mounted on the outer barrel, the material blocking structure abuts against the outer wall of the outer barrel to form a sealed cavity with the penetrating part in a surrounding mode, and the sealed cavity covers the connecting hole in a sealing mode. Foaming materials in the outer cylinder are isolated in the closed cavity after overflowing from the connecting hole, so that the foaming materials cannot overflow continuously, and the installation of the thermometer is prevented from being damaged. Through setting up the fender material structure on the installation casing of thermometer self, under the prerequisite that does not add extra part and extra process, can stop the foaming material in the urceolus and continue the excessive.

Description

Water heater thermometer and water heater

Technical Field

The utility model relates to the technical field of water heaters, in particular to a water heater thermometer and a water heater.

Background

The water heater comprises an inner container for storing hot water, an outer cylinder is arranged on an outer spacer sleeve of the inner container, and a thermometer for measuring and displaying the temperature in real time is fixedly connected to the outer cylinder so as to facilitate a user to know the temperature of the hot water in the water heater.

The thermometer generally comprises a temperature measuring part for detecting temperature, a display part for displaying temperature values, and a mounting shell for fixedly connecting the temperature measuring part and the display part on the outer cylinder, wherein one end of the temperature measuring part is required to be in contact with the inner cylinder to measure the real temperature of the inner cylinder, and the display part is required to be exposed outside the outer cylinder so as to be convenient for a user to check.

The prior art has the following defects: the outer cylinder is required to be filled with foaming materials during production, and the foaming materials are filled between the inner cylinder and the outer cylinder during foaming so as to keep the inner cylinder warm. However, as the outer cylinder is required to be provided with the connecting hole for installing the thermometer, foaming materials overflow through a gap between the wall of the connecting hole and the thermometer installation shell during foaming, so that the installation of the thermometer is easy to damage, and the filling quantity of the foaming materials between the inner cylinder and the outer cylinder is insufficient. The existing solution is to use a plastic bag for plugging, so that foaming materials are prevented from overflowing, the cost is increased, and the procedure of sleeving the plastic bag at the connecting hole is additionally added on the production line.

Therefore, there is a need for a water heater thermometer and a water heater to solve the above problems.

Disclosure of Invention

The utility model aims to provide a water heater thermometer and a water heater, which can prevent foaming materials in an outer cylinder from overflowing on the premise of not adding additional parts and additional working procedures.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in one aspect, a water heater thermometer is provided, including a mounting housing, the mounting housing includes:

the outer shell is abutted against the outer wall of the outer cylinder of the water heater;

the penetrating part is convexly arranged on the outer shell, a connecting hole is formed in the outer barrel, and the penetrating part penetrates through the connecting hole;

the material blocking structure is arranged on the outer shell and surrounds the periphery of the penetrating part at intervals, can prop against the outer wall of the outer cylinder to form a closed cavity with the penetrating part, and can cover the connecting hole to block foaming materials overflowed from the connecting hole.

As a preferable scheme of the water heater thermometer provided by the utility model, at least one hanging part is convexly arranged on the periphery of the penetrating part, and the hanging part is hung on the inner wall of the outer cylinder.

As the preferable scheme of the water heater thermometer provided by the utility model, the connecting hole comprises a hanging hole section and an avoidance hole section, wherein the hanging hole section and the avoidance hole section are communicated with each other, and the penetrating part can be horizontally clamped into the hanging hole section through the avoidance hole section so as to enable the hanging part to be hung on the edge of the hanging hole section;

the material blocking structure comprises a first stop rib and a second stop rib which are connected, the first stop rib is arranged around the circumference of the hooking hole section, and the second stop rib is arranged around the circumference of the avoidance hole section.

As the preferable scheme of the water heater thermometer provided by the utility model, the material blocking structure further comprises a third stop rib, wherein the third stop rib is arranged on the outer wall of the penetrating part and is flush with the first stop rib and the second stop rib, and the first stop rib is arranged outside the third stop rib in a surrounding manner at intervals.

As the preferable scheme of the water heater thermometer provided by the utility model, a wedge-shaped guide end is arranged on one side of the hooking part, which is opposite to the second stop rib.

As the preferable scheme of the water heater thermometer provided by the utility model, the water heater thermometer further comprises a temperature measuring piece, a dial is arranged on one side of the outer shell, which is opposite to the penetrating part, the inside of the penetrating part is hollow, an installation cylinder is arranged in the penetrating part, one end of the temperature measuring piece is abutted to the inner container of the water heater, the other end of the temperature measuring piece is installed in the installation cylinder and is connected with a rotating shaft, the rotating shaft penetrates through the outer shell and the dial and is connected with a pointer, and the pointer displays a temperature value by indicating scales on the dial.

As the preferable scheme of the water heater thermometer provided by the utility model, the outer shell is concavely provided with the mounting groove on one side facing away from the penetrating part, the dial is arranged on the groove bottom wall of the mounting groove, the transparent shell is buckled in the mounting groove, at least two opposite sides of the transparent shell are respectively provided with the clamping protrusions, at least two opposite groove walls of the mounting groove are respectively provided with the clamping holes corresponding to the clamping protrusions, and the clamping protrusions are clamped in the clamping holes.

As the preferable scheme of the water heater thermometer provided by the utility model, the mounting shell is provided with the positioning column, the outer cylinder is also provided with the positioning hole, the positioning column is inserted into the positioning hole, the positioning column is of a hollow structure, and the top of the positioning column is provided with the guide inclined plane.

As the preferable scheme of the water heater thermometer provided by the utility model, one side of the material blocking structure, which is away from the installation shell, is provided with the elastic pad, and the material blocking structure is abutted to the outer wall of the outer cylinder through the elastic pad.

In another aspect, a water heater is provided, including a water heater thermometer as described above.

The utility model has the beneficial effects that:

the utility model provides a water heater thermometer and a water heater comprising the same, wherein the thermometer comprises an installation shell, the water heater comprises an outer cylinder, a connecting hole is formed in the outer cylinder, the installation shell comprises an outer shell and a penetrating part protruding from the outer shell, the penetrating part penetrates through the connecting hole in the outer cylinder to fix the thermometer, and the outer shell is abutted to the outer wall of the outer cylinder and used for installing a display unit capable of displaying a temperature value. Further, a material blocking structure is further arranged on the outer shell, the material blocking structure is arranged on the periphery of the penetrating portion at intervals, after the installation shell is installed on the outer cylinder, the material blocking structure abuts against the outer wall of the outer cylinder, a closed cavity is formed between the material blocking structure and the penetrating portion in a surrounding mode, and the connecting hole is covered in a sealing mode. When the foaming material in the outer cylinder foams, part of the foaming material overflows from a gap between the wall of the connecting hole and the penetrating part, and enters the airtight cavity to be blocked by the material blocking structure, so that the foaming material is prevented from continuously overflowing from the connecting hole. That is, the foaming material is isolated in the closed cavity after overflowing from the connecting hole, and the foaming material cannot overflow continuously due to the blocking of the material blocking structure, so that the installation of the thermometer is prevented from being damaged, and the phenomenon of insufficient filling quantity of the foaming material between the inner container and the outer cylinder is prevented. Through setting up the fender material structure on the installation casing of thermometer self, under the prerequisite that does not add extra part and extra process, can stop the foaming material in the urceolus and continue the excessive.

Drawings

FIG. 1 is a schematic view of a water heater according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of an outer tub of a water heater according to an embodiment of the present utility model;

FIG. 3 is a first view of a mounting housing of a thermometer according to an embodiment of the present utility model;

FIG. 4 is a second view of a mounting housing of a thermometer according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a first connection between a thermometer and a water heater outer tub provided in an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a second connection between a thermometer and a water heater outer tub provided in an embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a thermometer provided in an embodiment of the present utility model;

FIG. 8 is a front view (hidden transparent shell) of a thermometer provided in an embodiment of the present utility model;

fig. 9 is a schematic structural view of a transparent shell according to an embodiment of the present utility model.

In the figure:

1. a mounting shell; 2. a temperature measuring member; 3. a transparent shell;

11. a material blocking structure; 12. an outer housing; 13. a penetrating portion; 14. a hanging part; 15. a mounting cylinder; 16. positioning columns; 17. reinforcing ribs;

111. a first stop rib; 112. A second stop rib; 113. A third stop rib;

121. a mounting groove; 122. A clamping hole;

131. a semicircular part; 132. A rectangular portion;

141. a wedge-shaped guide end;

161. a guide slope;

21. a rotating shaft; 22. a pointer;

31. the clamping bulge;

100. an outer cylinder; 200. an inner container;

101. a connection hole; 102. positioning holes;

1011. a hooking hole section; 1012. avoiding the hole section.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. 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.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a water heater thermometer, the water heater includes the inner bag 200 that is used for storing hot water, and the interval cover is equipped with urceolus 100 outside the inner bag 200, and this thermometer is used for measuring and showing the inner bag 200 temperature in real time to the user knows the hot water temperature in the water heater. Fig. 1 shows a schematic view of the thermometer mounted to an outer barrel 100.

As shown in fig. 1, 3 and 4, the thermometer includes a mounting case 1. As shown in fig. 2, the outer cylinder 100 is provided with a coupling hole 101. The installation shell 1 comprises an outer shell 12 and a penetrating part 13 protruding from the outer shell 12, wherein the penetrating part 13 penetrates through a connecting hole 101 on the outer cylinder 100 to fix the thermometer, and the outer shell 12 is abutted to the outer wall of the outer cylinder 100 for installing a display unit capable of displaying the temperature value.

Further, the outer casing 12 is further provided with a material blocking structure 11, the material blocking structure 11 is surrounded on the periphery of the penetrating portion 13 at intervals, and after the installation casing 1 is installed on the outer cylinder 100, the material blocking structure 11 abuts against the outer wall of the outer cylinder 100, so that a closed cavity is formed between the material blocking structure and the penetrating portion 13, and the closed cavity covers the connecting hole 101 in a sealing manner. When the foaming material in the outer cylinder 100 foams, part of the foaming material overflows from the gap between the wall of the connecting hole 101 and the penetrating part 13, enters the closed cavity, is blocked by the material blocking structure 11, and prevents the foaming material from continuously overflowing from the connecting hole 101. That is, the foaming material is isolated in the closed chamber after overflowing from the connecting hole 101, and the overflow is not continued due to the blocking of the material blocking structure 11, so that the installation of the thermometer is prevented from being damaged, and the phenomenon of insufficient filling amount of the foaming material between the inner container 200 and the outer cylinder 100 is prevented. By providing the material blocking structure 11 on the mounting housing 1 of the thermometer itself, the foam material in the outer cylinder 100 can be prevented from continuously overflowing without adding additional parts and additional processes.

Referring to fig. 3 and 4, at least one hooking portion 14 is provided on the outer circumference of the penetrating portion 13, the hooking portion 14 is hooked on the inner wall of the outer tube 100, and when the thermometer is installed, the hooking portion 14 is hooked on the inner wall of the outer tube 100 after passing through the connection hole 101, so as to prevent the thermometer from falling off. The material blocking structure 11 is disposed outside the penetrating portion 13 and abuts against the outer wall of the outer cylinder 100, so as to form the sealed chamber with the outer cylinder 100.

As shown in fig. 2 and 5, the connection hole 101 includes a hooking hole section 1011 and a relief hole section 1012 which are communicated. The size and shape of the hooking hole section 1011 are adapted to the size and shape of the penetrating portion 13, and the size of the avoiding hole section 1012 should be capable of allowing the hooking portion 14 to pass through, and when the thermometer is installed, the penetrating portion 13 can be translationally clamped into the hooking hole section 1011 through the avoiding hole section 1012, so that the hooking portion 14 is hung on the edge of the hooking hole section 1011. Since the hooking portion 14 is protruded on the sidewall of the penetrating portion 13, the hooking portion 14 cannot smoothly enter the outer cylinder 100 unless the escape hole 1012 is provided. In this embodiment, by providing the avoidance hole section 1012, the hitching part 14 can smoothly enter the outer cylinder 100 through the avoidance hole section 1012, and then translate and clip into the hitching hole section 1011 to hitch with the edge of the hitching hole section 1011.

Suitably, as shown in fig. 3 and 4, the stop structure 11 comprises a first stop rib 111 and a second stop rib 112 connected, the first stop rib 111 being arranged circumferentially around the hooking hole segment 1011 and the second stop rib 112 being arranged circumferentially around the relief hole segment 1012. That is, the connected first stop rib 111 and second stop rib 112 are disposed around the outside of the connection hole 101 together to block the overflow of the foaming material.

Referring to fig. 3 and 4, the material blocking structure 11 further includes a third blocking rib 113, where the third blocking rib 113 is disposed on an outer wall of the penetrating portion 13 and is flush with the first blocking rib 111 and the second blocking rib 112, and the first blocking rib 111 is surrounded by the third blocking rib 113 at intervals. The first stop rib 111, the second stop rib 112 and the third stop rib 113 are flush, so that they can be pressed together on the outer wall of the outer cylinder 100, and no gap exists. The third stop rib 113 is abutted against the edge of the orifice of the connecting hole 101, so that the foaming material can be further prevented from overflowing from the orifice of the connecting hole 101.

Illustratively, referring to fig. 4 and 6, in the present embodiment, the penetrating portion 13 includes a semicircular portion 131 and a rectangular portion 132 connected to each other, and the semicircular portion 131 is connected to a length side of the rectangular portion 132. Two opposite sides of the rectangular portion 132 along the length direction are provided with one hooking portion 14, and one side of the semicircular portion 131 away from the rectangular portion 132 is provided with one hooking portion 14, that is, three hooking portions 14 are provided in total on the penetrating portion 13. Accordingly, referring to fig. 2, the hooking hole section 1011 includes a semicircular hole section and a rectangular hole section connected, the semicircular hole section being adapted to the semicircular portion 131, and the rectangular hole section being adapted to the rectangular portion 132. Further, the avoiding hole section 1012 is rectangular, and the length of the avoiding hole section 1012 is greater than the length of the rectangular hole section and greater than the sum of the length dimension of the rectangular portion 132 and the dimensions of the hitching portions 14 on both sides, so that the two hitching portions 14 on both sides of the rectangular portion 132 can pass through the avoiding hole section 1012 and smoothly enter the outer cylinder 100. Referring to fig. 6, when the thermometer is installed, the rectangular portion 132 of the penetrating portion 13 enters the outer cylinder 100 from the right side avoiding hole section 1012, the semicircular portion 131 enters the outer cylinder 100 from the semicircular hole section, and then the installation housing 1 is translated leftwards so that the penetrating portion 13 is clamped into the hooking hole section 1011, and at this time, the three hooking portions 14 are just hooked on the edge of the hooking hole section 1011.

Further, referring to fig. 3 and 7, a wedge-shaped guide end 141 is disposed on the hooking portion 14 at a side facing away from the second stop rib 112. The direction of the translation of the penetrating part 13 from the avoiding hole section 1012 to the hanging hole section 1011 is defined as the clamping direction of the penetrating part 13, when the penetrating part 13 moves along the clamping direction, the wedge-shaped inclined surface of the wedge-shaped guide end 141 is in sliding contact with the edge of the orifice of the connecting hole 101 until the hanging part 14 is hung in place, and in the process, the outer cylinder 100 is gradually clamped by the hanging part 14 and the material blocking structure 11, so that the connection stability is improved, and the tightness between the material blocking structure 11 and the outer cylinder 100 is also improved.

Preferably, in order to further improve the tightness between the material blocking structure 11 and the outer cylinder 100, an elastic pad is disposed on a side of the material blocking structure 11 facing away from the mounting housing 1, and the material blocking structure 11 abuts against the outer wall of the outer cylinder 100 through the elastic pad.

Referring to fig. 2, 3 and 5, the mounting housing 1 is provided with a positioning column 16, the outer cylinder 100 is further provided with a positioning hole 102, and the positioning column 16 is inserted into the positioning hole 102, so that the connection stability between the thermometer and the outer cylinder 100 is further improved, and the mounting accuracy of the thermometer is improved.

Referring to fig. 3, the positioning column 16 has a hollow structure, and the foaming material overflowed from the positioning hole 102 on the outer cylinder 100 can enter the hollow positioning column 16 to prevent the foaming material at the positioning hole 102 from overflowing.

Further, a guiding inclined plane 161 is provided at the top of the positioning column 16, so that the upper end of the positioning column 16 is in a conical structure, and the conical structure can guide the positioning column 16 to smoothly enter the positioning hole 102. Referring to fig. 3, the positioning post 16 is disposed on a side of the first stop rib 111 away from the second stop rib 112, and the guiding inclined surface 161 is disposed on a side of the positioning post 16 facing away from the first stop rib 111. Referring to fig. 5, after the positioning post 16 is inserted into the positioning hole 102, a side of the positioning post 16, on which the guiding inclined plane 161 is not disposed, can play a role in stopping, so as to prevent the mounting housing 1 from moving in a reverse direction along the clamping direction of the penetrating portion 13, and prevent the thermometer from falling off.

As shown in fig. 7 and 8, the water heater thermometer further includes a temperature measuring member 2, a dial is disposed on a side of the outer housing 12 facing away from the penetrating portion 13, the penetrating portion 13 is hollow (as shown in fig. 3), and an installation cylinder 15 is disposed in the penetrating portion 13. One end of the temperature measuring piece 2 is abutted to the inner container 200 of the water heater, the other end of the temperature measuring piece is installed in the installation cylinder 15 and is connected with a rotating shaft 21, the rotating shaft 21 penetrates through the outer shell 12 and the dial, and is connected with a pointer 22, and the pointer 22 displays a temperature value through indicating scales on the dial. The temperature measuring member 2 in this embodiment is a mechanical temperature measuring structure, and uses thermal expansion and contraction of the bimetal member to drive the pointer 22 to rotate, so as to display the current temperature.

In this embodiment, the temperature measuring member 2 is driven to rotate the pointer 22 by the temperature change of the inner container 200, so that the pointer 22 indicates different scale marks to display the current temperature of the hot water.

Further, referring to fig. 3 and 4, a plurality of reinforcing ribs 17 are provided between the inner wall of the penetrating portion 13 and the outer wall of the mounting cylinder 15 to ensure that the mounting cylinder 15 is stable and not deformed.

Referring to fig. 7, 8 and 9, the outer case 12 is concavely provided with a mounting groove 121 on a side facing away from the penetrating portion 13, and a dial is provided on a groove bottom wall of the mounting groove 121, and illustratively, the dial may be adhered to a groove bottom wall of the mounting groove 121. Further, the transparent shell 3 is buckled in the mounting groove 121, at least two opposite sides of the transparent shell 3 are respectively provided with a clamping protrusion 31, at least two opposite groove walls of the mounting groove 121 are respectively provided with a clamping hole 122 corresponding to the clamping protrusions 31, and the clamping protrusions 31 are clamped in the clamping holes 122 to realize the clamping connection between the transparent shell 3 and the mounting shell 1. The transparent shell 3 is arranged so as not to obstruct the user from observing the temperature indicated by the pointer 22, and so as to protect the dial and the pointer 22 from erosion and maintain the cleanliness of the dial.

In this embodiment, referring to fig. 9, one of opposite sides of the transparent shell 3 is provided with one clamping protrusion 31, and the other side is provided with two clamping protrusions 31, and correspondingly, corresponding positions on the side wall of the mounting groove 121 are provided with clamping holes 122. In other embodiments, the number and distribution of the snap-in protrusions 31 may be set as desired.

The present embodiment also provides a water heater, including the inner container 200, the outer cylinder 100, and the water heater thermometer as described above. When the foaming material in the outer cylinder 100 foams, part of the foaming material overflows from the connecting hole 101, and is blocked by the material blocking structure 11, so that the foaming material is prevented from continuously overflowing from the connecting hole 101. A closed cavity is formed between the material blocking structure 11 on the thermometer mounting shell 1 and the outer barrel 100 of the water heater in a surrounding manner, foaming materials are isolated in the closed cavity after overflowing from the connecting hole 101, and the foaming materials cannot overflow continuously due to the blocking of the material blocking structure 11, so that the mounting of the thermometer is prevented from being damaged, and the phenomenon of insufficient filling quantity of the foaming materials between the inner container 200 and the outer barrel 100 is prevented. By providing the material blocking structure 11 on the mounting housing 1 of the thermometer itself, the foam material in the outer cylinder 100 can be prevented from continuously overflowing without adding additional parts and additional processes.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The utility model provides a water heater thermometer, its characterized in that, including installation casing (1), installation casing (1) includes:

an outer shell (12) which is abutted against the outer wall of an outer cylinder (100) of the water heater;

a penetrating part (13) protruding on the outer shell (12), wherein a connecting hole (101) is arranged on the outer cylinder (100), and the penetrating part (13) penetrates through the connecting hole (101);

the material blocking structure (11) is arranged on the outer shell (12) and surrounds the periphery of the penetrating portion (13) at intervals, the material blocking structure (11) can be abutted against the outer wall of the outer cylinder (100) so as to form a closed cavity with the penetrating portion (13), and the closed cavity can cover the connecting hole (101) to block foaming materials overflowed from the connecting hole (101).

2. The water heater thermometer according to claim 1, wherein at least one hooking portion (14) is convexly provided on the outer periphery of the penetrating portion (13), and the hooking portion (14) is hooked on the inner wall of the outer tube (100).

3. The water heater thermometer according to claim 2, characterized in that the connection hole (101) comprises a hanging hole section (1011) and a avoiding hole section (1012) allowing the hanging part (14) to pass through, the penetrating part (13) can be translationally clamped into the hanging hole section (1011) through the avoiding hole section (1012) so that the hanging part (14) is hung on the edge of the hanging hole section (1011);

the material blocking structure (11) comprises a first blocking rib (111) and a second blocking rib (112) which are connected, wherein the first blocking rib (111) is arranged around the circumference of the hooking hole section (1011), and the second blocking rib (112) is arranged around the circumference of the avoidance hole section (1012).

4. A water heater thermometer according to claim 3, wherein the material blocking structure (11) further comprises a third blocking rib (113), the third blocking rib (113) is disposed on the outer wall of the penetrating portion (13) and is flush with the first blocking rib (111) and the second blocking rib (112), and the first blocking rib (111) is surrounded outside the third blocking rib (113) at intervals.

5. A water heater thermometer according to claim 3, characterized in that the hooking portion (14) is provided with a wedge-shaped guiding end (141) on the side facing away from the second stop rib (112).

6. The water heater thermometer according to claim 2, further comprising a temperature measuring member (2), wherein the outer housing (12) is provided with a dial plate on one side facing away from the penetrating portion (13), the inside of the penetrating portion (13) is hollow, an installation cylinder (15) is arranged in the penetrating portion (13), one end of the temperature measuring member (2) is abutted to the inner container (200) of the water heater, the other end of the temperature measuring member is installed in the installation cylinder (15) and is connected with a rotating shaft (21), the rotating shaft (21) penetrates through the outer housing (12) and the dial plate and is connected with a pointer (22), and the pointer (22) displays a temperature value by indicating scales on the dial plate.

7. The water heater thermometer according to claim 6, wherein an installation groove (121) is concavely formed in one side, facing away from the penetrating portion (13), of the outer casing (12), the dial is arranged on the groove bottom wall of the installation groove (121), a transparent shell (3) is buckled in the installation groove (121), clamping protrusions (31) are arranged on at least two opposite sides of the transparent shell (3), clamping holes (122) corresponding to the clamping protrusions (31) are formed in at least two opposite groove walls of the installation groove (121), and the clamping protrusions (31) are clamped in the clamping holes (122).

8. The water heater thermometer according to any one of claims 1-7, wherein a positioning column (16) is provided on the installation housing (1), a positioning hole (102) is further provided on the outer cylinder (100), the positioning column (16) is inserted into the positioning hole (102), the positioning column (16) is of a hollow structure, and a guiding inclined plane (161) is provided at the top of the positioning column (16).

9. The water heater thermometer according to any one of claims 1-7, characterized in that an elastic pad is arranged on the side of the material blocking structure (11) facing away from the installation shell (1), and the material blocking structure (11) is abutted to the outer wall of the outer cylinder (100) through the elastic pad.

10. A water heater comprising a water heater thermometer according to any one of claims 1 to 9.