Water heater

Abstract

The utility model provides a water heater, which belongs to the technical field of household appliances and comprises a shell, a heating body is arranged in the shell, the heating body is communicated with a water inlet pipe and a water outlet pipe, a water flow regulating valve core is arranged in the water inlet pipe and / or the water outlet pipe, and a through hole corresponding to the position of the water flow regulating valve core is arranged on the shell. A water separation piece is arranged at the through hole, an adjusting knob is arranged outside the shell, the water separation piece is sleeved with the adjusting knob, the adjusting knob is connected with a control rod of the corresponding water flow adjusting valve element, a limiting rib is arranged on the water separation piece, and an adjusting part is arranged on the adjusting knob; the water heater has the advantages that by arranging the limiting rib and the adjusting part, the rotatable angle of the adjusting knob can be limited so as to ensure that the adjusting knob cannot drive the water flow adjusting valve element to be screwed out of the water pipe in the rotating process of the adjusting knob, and the use safety of the water heater is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of household electrical appliances, and in particular relates to a water heater. Background Art

[0002] With the improvement of living standards, electric water heaters have become popular in every household. The heater in the electric water heater uses electricity as energy to heat the water flow. Compared with solar water heaters, it has the advantages of instant heating and easy use. For example, patent No. CN212692118U discloses a constant temperature electric water heater, which specifically discloses that a flow regulating valve is also arranged on the warm water outlet pipe. The flow regulating valve can use an ordinary switch valve core, which is fixed to the warm water outlet pipe by threads. The outlet flow rate of warm water can be controlled by the flow regulating valve. The valve stem of the flow regulating valve extends from the inner shell to the outer shell, and an adjusting knob is installed at the end of the valve stem on the outer shell. The outlet flow rate of the water heater can be adjusted by turning the adjusting knob. However, the water heater in the above patent has certain safety hazards when in use. The switch valve core is fixed to the warm water outlet pipe by threads, and the adjusting knob has no limiting mechanism when it is turned. Then, with the large range of rotation of the adjusting knob, the flow regulating valve may be screwed out of the outlet pipe as the adjusting knob is turned, causing water leakage, which may damage the electronic components in the water heater, and there is even a certain risk of leakage. Utility Model Content

[0003] The utility model aims to solve the above problems in the prior art and proposes a water heater capable of limiting the rotation angle of an adjusting knob.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a water heater, comprising a shell, a heating body is arranged in the shell, a water inlet pipe and a water outlet pipe are connected to the heating body, a water flow regulating valve core is arranged in the water inlet pipe and / or the water outlet pipe, and a through hole corresponding to the position of the water flow regulating valve core is opened on the shell, a water barrier is arranged at the through hole, an adjusting knob is arranged outside the shell, the adjusting knob is sleeved on the water barrier and connected with the corresponding control rod of the water flow regulating valve core, and a limiting rib is arranged on the water barrier, an adjusting part is arranged on the adjusting knob, and during the forward or reverse rotation adjustment process of the adjusting knob, when the adjusting part and the limiting rib are abutted, the water flow regulating valve core is located at a set maximum water outlet position or a set minimum water outlet position.

[0005] In the above-mentioned water heater, the water-blocking member includes a water-blocking ring extending outward from the through hole, the adjusting knob is sleeved on the water-blocking ring, and the adjusting knob can rotate relative to the water-blocking ring, and the limiting rib is arranged on the outer circumference of the water-blocking ring; or the limiting rib is arranged on the inner circumference of the water-blocking ring.

[0006] In the above-mentioned water heater, the adjustment part includes a first adjustment block arranged in the adjustment knob, and the number of the limiting ribs is two. When the adjustment knob is connected to the control rod, the first adjustment block is located between the two limiting ribs.

[0007] In the above-mentioned water heater, a second adjusting block is further arranged in the adjusting knob, and an adjusting angle is formed between the two opposite side surfaces of the first adjusting block and the second adjusting block and the center of the adjusting knob, and when the first adjusting block abuts against one of the limiting ribs, the water flow regulating valve core is located at the set maximum water output position; when the second adjusting block abuts against the other limiting rib, the water flow regulating valve core is located at the set minimum water output position, and as the range of the adjusting angle changes, the flow control range of the water flow regulating valve core changes.

[0008] In the above-mentioned water heater, a toothed key is arranged in an annular shape on the outer circumferential surface of the control rod, a connecting block is arranged in the adjusting knob, a connecting groove is provided in the connecting block, a toothed groove is arranged in an annular shape on the inner wall of the connecting groove, and the control rod is plugged and fixed to the connecting block so that the adjusting knob and the control rod can be separated.

[0009] In the above-mentioned water heater, the shell includes a mounting shell and an upper cover plate, the mounting shell and the upper cover plate are fixed to form an installation space for installing the heating body, and a sealing ring is mounted on the water flow regulating valve core. When the mounting shell and the upper cover plate are fixed, the upper cover plate and the water flow regulating valve core clamp and fix the sealing ring.

[0010] In the above-mentioned water heater, a connecting hook is integrally provided on one end of the upper cover plate, a lap edge is integrally provided on the mounting shell, the connecting hook is hooked with the lap edge, and the other end of the upper cover plate is detachably fixedly connected to the mounting shell.

[0011] In the above-mentioned water heater, the control rod extends out of the shell, and a clearance hole is opened at the through hole.

[0012] In the above-mentioned water heater, an overheat protector for monitoring the temperature of the heating body is installed on the heating body, and a reset button is provided on the overheat protector. When the temperature of the heating body is too high, the reset button pops out and the heating body is powered off. An insertion hole is provided on the shell, and the insertion hole corresponds to the position of the reset button. When the heating body cools down and recovers, a non-metallic object is inserted into the insertion hole to press and reset the reset button.

[0013] In the above-mentioned water heater, a reset shell is integrally provided in the shell, a reset cavity is provided in the reset shell, the insertion hole is communicated with the reset cavity, and the reset button extends into the reset cavity. When the reset button needs to be pressed to reset, a non-metallic object is inserted into the reset cavity to push the reset button to reset it.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) In this embodiment, the setting of the adjusting knob can directly manually control the water flow in the water inlet pipe and / or the water outlet pipe. The setting of the limit rib and the adjusting part can limit the rotatable angle of the adjusting knob to ensure that during the rotation of the adjusting knob, the adjusting knob will not drive the water flow regulating valve core to rotate out of the water pipe, thereby ensuring the safety of the water heater;

[0016] (2) The provision of the water barrier can, to a certain extent, block the entry of water vapor between the adjustment knob and the housing, thereby preventing the external water vapor from contacting the internal components of the water heater and causing damage to the circuit components, thereby increasing the service life of the water heater;

[0017] (3) When the temperature of the heating element is too high, the overheat protector detects that the temperature change of the heating element exceeds the limit temperature, and the reset button on the overheat protector pops out, so that the heating element is powered off and stops working in a very short time to ensure safe use. However, since the reset button is located inside the shell, if the overheat protector is to be restarted, professional personnel are required to disassemble the shell to operate. Therefore, an insertion hole is opened on the shell so that the user can start the overheat protector without disassembling the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the upper cover plate in the utility model;

[0021] Figure 4 It is one of the cross-sectional structural schematic diagrams of the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the adjusting knob in the utility model;

[0023] Figure 6 This is one of the schematic diagrams of the adjustment angle of the adjustment knob in the utility model;

[0024] Figure 7 This is the second schematic diagram of the adjustment angle of the adjustment knob in the utility model;

[0025] Figure 8 This is the second schematic diagram of the cross-sectional structure of the utility model;

[0026] Fig. 9 It is a schematic diagram of the exploded structure of the upper cover plate and the mounting shell of the utility model.

[0027] In the figure, the shell 100; the heating body 101; the water inlet pipe 102; the water outlet pipe 103; the water flow regulating valve core 104; the water barrier 105; the adjusting knob 106; the limiting rib 107; the first adjusting block 108; the second adjusting block 109; the connecting block 110; the connecting groove 111; the indicator mark 112; the mounting shell 113; the upper cover plate 114; the sealing ring 115; the connecting hook 116; the overlap 117; the clearance hole 118; the overheat protector 119; the reset button 120; the insertion hole 121; the reset shell 122; the reset cavity 123; the cover 124; the set screw 125; and the control rod 126. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] like Figure 1-Figure 9As shown, a water heater comprises a shell 100, in which a heating body 101 is arranged, and a water inlet pipe 102 and a water outlet pipe 103 are connected to the heating body 101, and a water flow regulating valve core 104 is arranged in the water inlet pipe 102 and / or the water outlet pipe 103, and a through hole corresponding to the position of the water flow regulating valve core 104 is opened on the shell 100, and a water barrier 105 is arranged at the through hole, and an adjusting knob 106 is arranged outside the shell 100, and the adjusting knob 106 is sleeved on the water barrier 105 and connected with the corresponding control rod 126 of the water flow regulating valve core 104, and a limiting rib 107 is arranged on the water barrier 105, and an adjusting part is arranged on the adjusting knob 106, and during the forward or reverse rotation adjustment process of the adjusting knob 106, when the adjusting part abuts against the limiting rib 107, the water flow regulating valve core 104 is located at the set maximum water outlet position or the set minimum water outlet position.

[0031] In this embodiment, the setting of the adjusting knob 106 can directly manually control the water flow in the water inlet pipe 102 and / or the water outlet pipe 103. The setting of the limit rib 107 and the adjusting part can limit the rotatable angle of the adjusting knob 106 to ensure that during the rotation of the adjusting knob, the adjusting knob 106 will not drive the water flow regulating valve core 104 to rotate out of the water pipe, thereby ensuring the safe use of the water heater; and the setting of the water barrier 105 can block the entry of water vapor between the adjusting knob 106 and the shell 100 to a certain extent, avoid the water vapor entering from the outside from contacting the internal components of the water heater and causing damage to the circuit components, thereby increasing the service life of the water heater.

[0032] like Figure 2 For example, the water flow regulating valve core 104 is arranged at the water inlet pipe 103, and can regulate the flow rate of the inlet water.

[0033] Preferably, the water-blocking member 105 includes a water-blocking ring extending outward from the through hole, an adjusting knob 106 is sleeved on the water-blocking ring, and the adjusting knob 106 can rotate relative to the water-blocking ring, and a limiting rib 107 is provided on the outer circumference of the water-blocking ring; or the limiting rib 107 is provided on the inner circumference of the water-blocking ring.

[0034] In this embodiment, in order to ensure the water-proofness between the adjusting knob 106 and the shell 100, a water-proof ring is provided at the through hole on the shell 100. When the adjusting knob 106 is sleeved on the water-proof ring, the adjusting knob 106 does not contact the water-proof ring, thereby ensuring the normal rotation of the adjusting knob 106. A water-proof maze groove is formed between the water-proof ring and the adjusting knob 106 to block external water vapor.

[0035] Preferably, the adjustment portion includes a first adjustment block 108 disposed in the adjustment knob 106 , and the number of the limiting ribs 107 is two. When the adjustment knob 106 is connected to the control rod 126 , the first adjustment block 108 is located between the two limiting ribs 107 .

[0036] In this embodiment, there are two limit ribs 107. When the adjusting knob 106 is connected to the control rod 126, the first adjusting block 108 is located between the two limit ribs 107. The two limit ribs 107 can reduce the working stroke of the adjusting knob 106. The angle between the two limit ribs 107 can also be adjusted according to different water flow control requirements. Of course, because the limit ribs 107 are fixed on the housing 100, the angle of the limit ribs 107 can only be adjusted by replacing the housing 100.

[0037] Further preferably, a second adjustment block 109 is also provided in the adjustment knob 106, and an adjustment angle is formed between the two opposite side surfaces of the first adjustment block 108 and the second adjustment block 109 and the center of the adjustment knob 106. When the first adjustment block 108 abuts against one of the limiting ribs 107, the water flow regulating valve core 104 is located at the set maximum water output position; when the second adjustment block 109 abuts against the other limiting rib 107, the water flow regulating valve core 104 is located at the set minimum water output position, and as the range of the adjustment angle changes, the flow control range of the water flow regulating valve core 104 can be changed.

[0038] In this embodiment, the first adjusting block 108 can rotate between the two limiting ribs 107 to adjust the water flow rate, and in order to change the water flow rate adjustment range, a second adjusting block 109 is arranged in the adjusting knob 106, and an adjustment angle is formed between the two opposite side surfaces on the first adjusting block 108 and the second adjusting block 109 and the center of the adjusting knob 106. As the range of the adjustment angle changes, the flow control range of the water flow regulating valve core 104 can be changed. Since the first adjusting block 108 and the second adjusting block 109 are both fixed in the adjusting knob 106, different flow changes can only be achieved by replacing different adjusting knobs 106. As shown in the figure, the adjusting knob 106 can be adjusted between the set maximum water outlet flow rate and the water flow closing state. As shown in the figure, the adjusting knob 106 can be adjusted between the set maximum water outlet flow rate and a small water flow rate.

[0039] Further preferably, a toothed key is arranged in an annular shape on the outer circumferential surface of the control rod 126, a connecting block 110 is arranged in the adjusting knob 106, a connecting groove 111 is provided in the connecting block 127, and a toothed groove is arranged in an annular shape on the inner wall of the connecting groove 111. The control rod 126 is plugged and fixed to the connecting block 110, so that the adjusting knob 106 and the control rod 126 can be separated, so that the adjusting knob 106 can be replaced conveniently to achieve adjustment of different flow ranges.

[0040] It is worth mentioning that an indicator mark 112 is provided on the adjusting knob 106, which facilitates the positioning of the angle of the adjusting knob 106 during assembly, and also serves as an indicator when adjusting the water flow.

[0041] Preferably, the shell 100 includes an installation shell 113 and an upper cover plate 114, and the installation shell 113 and the upper cover plate 114 are fixed to form an installation space for installing the heating body 101, and a sealing ring 115 is mounted on the water flow regulating valve core 104. When the installation shell 113 and the upper cover plate 114 are fixed, the upper cover plate 114 and the water flow regulating valve core 104 clamp and fix the sealing ring 115.

[0042] In this embodiment, in order to further ensure the sealing inside the housing 100, a sealing ring 115 is further provided on the water flow regulating valve core 104 to seal the gap between the water flow regulating valve core 104 and the through hole.

[0043] Preferably, a connecting hook 116 is integrally provided on one end of the upper cover plate 114, and a lap edge 117 is integrally provided on the mounting shell 113, the connecting hook 116 is hooked with the lap edge 117, and the other end of the upper cover plate 114 is detachably fixedly connected to the mounting shell 113.

[0044] In this embodiment, in order to facilitate the assembly of the shell 100, one end of the upper cover plate 114 is hooked with the mounting shell 113, so that the upper cover plate 114 can rotate around the hook connection point. The entire mounting shell 113 and the upper cover plate 114 can be fixed by simply fixing the other end of the upper cover plate 114 to the mounting shell 113.

[0045] It is worth mentioning that the detachable connection between the mounting shell 113 and the upper cover plate 114 can be achieved by using a set screw 125 . The set screw 125 passes through the upper cover plate 114 and is screwed to the mounting shell 113 to fix the upper cover plate 114 and the mounting shell 113 .

[0046] Further preferably, the control rod 126 extends out of the shell 100 to facilitate assembly and fixation between the adjustment knob 106 and the control rod 126, and a clearance hole 118 is opened at the through hole to ensure that the control rod 126 can extend out of the through hole when the upper cover plate 114 is covered on the mounting shell 113.

[0047] like Figure 2 , Figure 8-Figure 9As shown, preferably, an overheat protector 119 for monitoring the temperature of the heating body 101 is installed on the heating body 101, and a reset button 120 is arranged on the overheat protector 119. When the temperature of the heating body 101 is too high, the reset button 120 pops out and the heating body 101 is powered off. An insertion hole 121 is provided on the shell 100, and the insertion hole 121 corresponds to the position of the reset button 120. When the heating body 101 cools down and recovers, a non-metallic object is inserted into the insertion hole 121 to press and reset the reset button 120.

[0048] In this embodiment, when the temperature of the heating body 101 is too high, the overheat protector 119 detects that the temperature change of the heating body 101 exceeds the limit temperature, and the reset button 120 on the overheat protector 119 pops out, so that the heating body 101 is powered off and stops working in a very short time to ensure safe use. However, since the reset button 120 is located inside the shell 100, if the overheat protector 119 is to be restarted, professional personnel are required to disassemble the shell 100 to operate. Therefore, an insertion hole 121 is opened on the shell 100, so that the user can start the overheat protector 119 without disassembling the machine.

[0049] Further preferably, a reset shell 122 is integrally provided in the shell 100, a reset cavity 123 is opened in the reset shell 122, the insertion hole 121 is communicated with the reset cavity 123, and the reset button 120 extends into the reset cavity 123. When the reset button 120 needs to be pressed to reset, a non-metallic object is inserted into the reset cavity 123 to move the reset button 120 for reset.

[0050] In this embodiment, the reset shell 122 in the shell 100 can be separately separated from the reset button 120 from the shell 100, thereby preventing objects from reaching into the shell 100 and causing damage to other parts in the shell 100 during the reset process of the reset button 120 or during the use of the water heater, and preventing the user from contacting other parts in the shell 100 and causing the risk of electric shock.

[0051] It is worth mentioning that the insertion hole 121 is opened on the back side of the shell 100, which can maintain the aesthetics of the front side of the shell 100 and also ensure that the reset shell 122 will not be accidentally touched. A cover 124 is detachably provided on the shell 100. When the cover 124 is fixed to the shell 100, the cover 124 covers the insertion hole 121.

[0052] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0053] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A water heater, characterized in that: It comprises a shell, a heating body is arranged inside the shell, a water inlet pipe and a water outlet pipe are arranged in communication with the heating body, a water flow regulating valve core is arranged inside the water inlet pipe and / or the water outlet pipe, and a through hole corresponding to the position of the water flow regulating valve core is opened on the shell, a water barrier is arranged at the through hole, an adjusting knob is arranged outside the shell, the adjusting knob is sleeved on the water barrier and connected with the corresponding control rod of the water flow regulating valve core, and a limiting rib is arranged on the water barrier, an adjusting part is arranged on the adjusting knob, and during the forward or reverse rotation adjustment process of the adjusting knob, when the adjusting part abuts against the limiting rib, the water flow regulating valve core is located at the set maximum water outlet position or the set minimum water outlet position.

2. A water heater according to claim 1, characterized in that: The water-blocking component includes a water-blocking ring extending outward from the through hole, the adjusting knob is sleeved on the water-blocking ring, and the adjusting knob can rotate relative to the water-blocking ring, and the limiting rib is arranged on the outer circumference of the water-blocking ring; or the limiting rib is arranged on the inner circumference of the water-blocking ring.

3. A water heater according to claim 1, characterized in that: The adjusting portion includes a first adjusting block arranged in the adjusting knob, and the number of the limiting ribs is two. When the adjusting knob is connected to the control rod, the first adjusting block is located between the two limiting ribs.

4. A water heater according to claim 3, characterized in that: A second adjusting block is also provided in the adjusting knob, and an adjusting angle is formed between the two opposite side surfaces of the first adjusting block and the second adjusting block and the center of the adjusting knob. When the first adjusting block abuts against one of the limiting ribs, the water flow regulating valve core is located at the set maximum water output position; when the second adjusting block abuts against the other limiting rib, the water flow regulating valve core is located at the set minimum water output position, and as the range of the adjusting angle changes, the flow control range of the water flow regulating valve core changes.

5. A water heater according to claim 1, characterized in that: A toothed key is arranged in an annular shape on the outer circumferential surface of the control rod, a connecting block is arranged in the adjusting knob, a connecting groove is arranged in the connecting block, a toothed groove is arranged in an annular shape on the inner wall of the connecting groove, the control rod is plugged and fixed to the connecting block, so that the adjusting knob and the control rod can be separated.

6. A water heater according to claim 1, characterized in that: The shell includes a mounting shell and an upper cover plate, wherein the mounting shell and the upper cover plate are fixed to form an installation space for installing the heating body, and a sealing ring is sleeved on the water flow regulating valve core. When the mounting shell and the upper cover plate are fixed, the upper cover plate and the water flow regulating valve core clamp and fix the sealing ring.

7. A water heater according to claim 6, characterized in that: A connecting hook is integrally provided at one end of the upper cover plate, and a lap edge is integrally provided on the mounting shell. The connecting hook is hooked with the lap edge, and the other end of the upper cover plate is detachably fixedly connected to the mounting shell.

8. A water heater according to claim 7, characterized in that: The control rod extends out of the shell, and a clearance hole is provided at the through hole.

9. A water heater according to claim 1, characterized in that: An overheat protector for monitoring the temperature of the heating body is installed on the heating body. A reset button is provided on the overheat protector. When the temperature of the heating body is too high, the reset button pops out and the heating body is powered off. An insertion hole is provided on the shell, and the insertion hole corresponds to the position of the reset button. When the heating body cools down and recovers, a non-metallic object is inserted into the insertion hole to press and reset the reset button.

10. A water heater according to claim 9, characterized in that: A reset shell is integrally provided in the shell, a reset cavity is provided in the reset shell, the insertion hole is communicated with the reset cavity, and the reset button extends into the reset cavity. When the reset button needs to be pressed to reset, a non-metallic object is inserted into the reset cavity to push the reset button to reset.

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