A clamp, liner assembly and water heater

Abstract

The utility model relates to the technical field of household appliances discloses a clamp, inner bag subassembly and water heater. The clamp includes the clamp body and locking portion, and the clamp body can be clamped to the outside of the to-be-clamped part, and the clamp body is provided with an opening; the both ends of the opening are connected with the locking portion, and the locking portion extends to the inside of the clamp body, and the two locking portions are connected through the fastener to clamp the to-be-clamped part. The clamp can clamp the to-be-clamped part, thereby guaranteeing the installation stability of the to-be-clamped part; the locking portion is arranged to extend to the inside of the clamp body, which can avoid the external structure, thereby guaranteeing the quality of the whole device and improving the yield of the finished product. The inner bag subassembly can prevent the locking portion from scratching the shell when the shell and the shell body are assembled, thereby guaranteeing the quality of the shell. The water heater can guarantee the yield of the finished product through the application of the inner bag subassembly.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a clamp, inner tank assembly and water heater. Background Technology

[0002] A water heater is a device that converts energy (electricity, gas, solar energy, etc.) into heat energy through heat exchange to heat and store water for domestic or industrial use. Based on their working principles, water heaters can be categorized into electric water heaters, gas water heaters, solar water heaters, magnetic water heaters, and air source heat pump water heaters.

[0003] To address the issues of capacity, efficiency, and lifespan in single-tank water heaters, existing technology proposes a dual-tank water heater. This dual-tank water heater uses two interconnected inner tanks for heating, effectively improving the heating rate. When fixing the two inner tanks, at least two clamps are typically engaged on the outer sides of both tanks, meaning each clamp must be simultaneously tightened on the outer sides of both tanks to restrict their relative positions. After the two tanks are fixed, the clamps are connected to a wall mount for wall installation. One end of each clamp has an opening, and locking parts extend from opposite sides of the opening away from the inner tanks. Fasteners pass through the two locking parts sequentially and lock them in place, securing the two inner tanks. However, the above-mentioned clamp structure usually has the following problems: 1) The height of the locking part is usually greater than 20mm. In order to avoid the locking part scratching the outer shell, a heat insulation layer with a thickness of more than 20mm is usually set between the outer shell and the inner tank, resulting in a larger overall volume of the water heater and a larger space occupied during installation; 2) For water heaters with a thinner heat insulation layer, the locking part can easily scratch the outer shell when the inner tank is installed into the outer shell. In addition, the inner tank is prone to expansion when heated during use, which can also easily cause the locking part to scratch the outer shell, thereby reducing the overall yield rate.

[0004] Therefore, there is an urgent need to propose a clamp, inner tank assembly, and water heater to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a clamp, inner tank assembly and water heater to avoid interference between the locking part and the outer shell during assembly and use, prevent the outer shell from being scratched, thereby ensuring the yield rate of the whole machine, and reduce the thickness of the insulation layer, thereby reducing the size of the water heater and installation space, and improving the user experience.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A clamp, comprising:

[0008] The clamp body can be clamped to the outside of the part to be clamped, and the clamp body is provided with an opening;

[0009] The locking part is connected to both ends of the opening, and the locking part extends toward the inside of the clamp body. The two locking parts are connected by fasteners to clamp the part to be clamped.

[0010] As a preferred embodiment of the clamp provided by this utility model, the opening is made on a part of the clamp body that does not contact the part to be clamped.

[0011] As a preferred embodiment of the clamp provided by this utility model, the component to be clamped is the tank of a water heater, and there are two tanks arranged side by side.

[0012] The clamp body includes two straight segments and two arc segments. The two arc segments are arranged opposite each other and respectively fit into the gallbladder walls on opposite sides of the two gallbladders. The two straight segments are located on both sides of the gallbladders, and each straight segment is connected to the two arc segments at both ends. One of the straight segments is provided with the opening.

[0013] As a preferred embodiment of the clamp provided by this utility model, the opening is located at 1 / 3 to 1 / 2 of the straight segment.

[0014] As a preferred embodiment of the clamp provided by this utility model, the clamp body is provided with an installation avoidance hole for avoiding the installation of the fastener.

[0015] As a preferred embodiment of the clamp provided by this utility model, the locking part is inclined toward the side closer to the mounting clearance hole.

[0016] As a preferred embodiment of the clamp provided by this utility model, a reinforcing rib is provided between the locking part and the clamp body.

[0017] As a preferred embodiment of the clamp provided by this utility model, the outer side of the connection position between the clamp body and the locking part is recessed towards the inner side of the clamp body to form the reinforcing rib on the inner side of the connection position between the clamp body and the locking part.

[0018] As a preferred embodiment of the clamp provided by this utility model, both sides of the locking part are provided with reinforcing bending parts, and the reinforcing bending parts are set at an angle to the locking part.

[0019] As a preferred embodiment of the clamp provided by this utility model, the bending directions of the two reinforcing bending portions of each locking portion are the same or different.

[0020] As a preferred embodiment of the clamp provided by this utility model, the length L of the locking part is 15mm to 25mm.

[0021] As a preferred embodiment of the clamp provided by this utility model, the clamp body is further provided with an installation positioning hole, which is used to engage with a positioning pin on the installation equipment.

[0022] As a preferred embodiment of the clamp provided by this utility model, the mounting and positioning hole is a non-circular hole.

[0023] This utility model also provides an inner liner assembly, including:

[0024] At least two tubes, arranged side by side;

[0025] As described above, the clamp body of the clamp is disposed outside at least two of the gallbladder bodies;

[0026] Fasteners pass through and lock the two locking parts in sequence, so that the clamp body clamps the two chambers.

[0027] As a preferred embodiment of the inner liner component provided by this utility model, the liner is made of non-metallic material.

[0028] This utility model also provides a water heater, including a shell and an inner tank assembly as described above, wherein the inner tank assembly is installed inside the shell.

[0029] The beneficial effects of this utility model are as follows:

[0030] The clamp provided by this utility model can tighten the parts to be clamped, thereby ensuring the installation stability of the parts to be clamped; by extending the locking part towards the inside of the clamp body, it can avoid external structures, thereby ensuring the quality of the entire device and improving the yield of finished products.

[0031] The inner tank assembly provided by this utility model includes a tank body and a clamp set outside the tank body. By setting the clamp, the tank body can be fixed to restrain it when it expands due to heat, thus preventing deformation of the tank body due to pressure and ensuring the flatness of the water heater's appearance. By setting the locking part to extend inward to the clamp, it can avoid the outer shell, thereby preventing the locking part from scratching the outer shell when the tank body is assembled with the outer shell, ensuring the quality of the outer shell, and thus ensuring the yield rate of the finished water heater.

[0032] By using a non-metallic tank, the water quality is cleaner, the durability is stronger, the maintenance is more convenient, and the safety is higher. In addition, the non-metallic tank has better heat preservation effect. With the clamp with the locking part that extends outward, the thickness of the heat preservation layer between the outer shell and the tank can be greatly reduced, thereby reducing the overall size of the water heater, reducing the installation space, and improving the user experience.

[0033] The water heater provided by this utility model, by applying the above-mentioned inner tank assembly, can avoid the outer shell being scratched by the locking part during the installation of the tank, thereby ensuring the yield rate of the finished water heater. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the inner liner assembly provided in this embodiment of the utility model;

[0036] Figure 2 This is a schematic diagram of the first structure of the clamp provided in this embodiment of the utility model;

[0037] Figure 3 yes Figure 2 A magnified view of a portion at point A;

[0038] Figure 4 This is a schematic diagram of the second structure of the clamp provided in this embodiment of the utility model;

[0039] Figure 5 yes Figure 4 A magnified view of the area at point B;

[0040] Figure 6 yes Figure 2 A magnified view of a section at point C.

[0041] Figure label:

[0042] 100. Inner liner components;

[0043] 10. Gallbladder;

[0044] 20. Clamp; 21. Clamp body; 2101. Opening; 2102. Mounting clearance hole; 2103. Mounting positioning hole; 211. Straight section; 2111. First section; 2112. Second section; 212. Curved section; 22. Locking part; 221. Reinforced bending part; 220. Reinforcing rib;

[0045] 30. Bracket. Detailed Implementation

[0046] Before explaining any embodiment of the present invention in detail, it should be understood that the present invention is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0047] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0048] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0049] In this invention, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0050] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0051] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can be performed by one part, one component, or a combination of multiple parts.

[0052] In this utility model, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this utility model. Furthermore, in the context, it should be understood that when one element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent the direct orientation but can also be understood as the lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0053] Figure 1 A schematic diagram of the structure of the inner liner assembly 100 provided in this embodiment is shown. Figure 1 As shown, this embodiment provides a water heater, which includes a shell (not shown) and an inner tank assembly 100, the inner tank assembly 100 being disposed within the shell. The inner tank assembly 100 includes a heating mechanism (not shown) and two side-by-side tank bodies 10. The heating mechanism can heat the water in the tank bodies 10, and the tank bodies 10 can store hot water for domestic or industrial use. Of course, the number of tank bodies 10 in this embodiment is not limited to two; in other embodiments, the number of tank bodies 10 can be three, four, or even more. For ease of description, this embodiment uses two tank bodies 10 as an example.

[0054] Optionally, the tank 10 is made of a non-metallic material, which has the advantages of cleaner water, greater durability, easier maintenance, and higher safety. In this embodiment, the tank 10 is a plastic tank, which has the advantages of good corrosion resistance, long service life, high insulation coefficient, and low processing cost.

[0055] Figure 2 A first structural schematic diagram of the clamp 20 provided in this embodiment is shown. Figure 3 It shows Figure 2 A magnified view of a portion at point A. (See attached image.) Figures 2-3 and combined Figure 1As shown, the inner tank assembly 100 also includes a clamp 20 and fasteners (not shown in the figure). The clamp 20 includes a clamp body 21 and a locking part 22. The clamp body 21 can be clamped onto the two tank bodies 10. The clamp body 21 is provided with an opening 2101. Both ends of the opening 2101 are connected to the locking part 22. The two locking parts 22 are connected by fasteners to clamp the two tank bodies 10. By setting the clamp 20, the two tank bodies 10 can be fixed, so as to restrain them when the tank bodies 10 expand due to heat, avoid the tank bodies 10 from deforming due to pressure, and at the same time ensure the flatness of the water heater's appearance.

[0056] However, in related technologies, the locking part 22 is usually set to extend outward toward the clamp body 21, and the height of the locking part 22 is often greater than 20mm. For water heaters with thin insulation layer, the locking part 22 can easily scratch the outer shell when the tank 10 is installed into the outer shell, resulting in a decrease in the overall yield rate.

[0057] To address the aforementioned issues, this embodiment also provides a clamp 20, which includes a clamp body 21 and a locking part 22. The clamp body 21 can be clamped onto the outside of the part to be clamped, and an opening 2101 is provided on the clamp body 21. Both ends of the opening 2101 are connected to the locking part 22, and the locking part 22 extends inward toward the clamp body 21. The two locking parts 22 are connected by fasteners to clamp the part to be clamped. It should be noted that in this embodiment, the part to be clamped specifically refers to the tank body 10 of a water heater. Of course, in other embodiments, the part to be clamped can also be other workpieces that need to be fastened by a clamp, and this is not limited here.

[0058] The clamp 20 provided in this embodiment can fix the two tank bodies 10, restraining them when they expand due to heat, preventing deformation caused by pressure, and ensuring the flatness of the water heater's appearance. By setting the locking part 22 to extend inward to the clamp body 21, it can avoid the outer shell, thus preventing the locking part 22 from scratching the outer shell during assembly of the tank body 10 and the outer shell, ensuring the quality of the outer shell, and thus ensuring the yield rate of the finished water heater. In addition, the non-metallic tank body has better heat preservation effect. With the clamp 20 having an outwardly extending locking part 22, the thickness of the heat preservation layer between the outer shell and the tank body 10 can be greatly reduced, thereby reducing the overall size of the water heater, reducing installation space, and improving the user experience.

[0059] It should be noted that, in this embodiment, the inner side of the clamp body 21 specifically refers to the side of the clamp body 21 facing the gallbladder 10, and the outer side of the clamp body 21 specifically refers to the side of the clamp body 21 away from the gallbladder 10.

[0060] like Figure 3As shown, the locking part 22 is roughly plate-shaped, and each locking part 22 has a through hole; the fastener is a bolt and nut assembly, wherein the fastening bolt can pass through the through holes of the two locking parts 22 in sequence and be locked by the fastening nut. During the process of locking the locking part 22, the clamp body 21 will gradually tighten, and finally clamp the two bladders 10.

[0061] Optionally, each locking part 22 has a reinforcing bend 221 on both sides of its edge, with the reinforcing bend 221 forming an angle with the locking part 22. The reinforcing bend 221 increases the structural strength of the locking part 22, preventing deformation during fastener installation and further ensuring the fastening effect of the clamp 20 on the inner tube 10. In actual manufacturing, the reinforcing bend 221 is formed by bending the two sides of the locking part 22; this structure is relatively simple and easy to manufacture. In this embodiment, the two reinforcing bends 221 of each locking part 22 bend in the same direction, facing away from the other locking part 22. This design serves to avoid interference between the reinforcing bends 221 on the two locking parts 22 when the fasteners are tightened. Of course, in other embodiments, the two reinforcing bends 221 of each locking part 22 may also be bent toward the direction of the other locking part 22, or the two reinforcing bends 221 of each locking part 22 may be bent in opposite directions, which can all increase the structural strength of the locking part 22.

[0062] like Figures 1-3 As shown, the opening 2101 is located on the clamp body 21 at a part that does not contact the tank body 10, so as to avoid the locking part 22 scratching the tank body 10, thereby ensuring the appearance quality of the tank body 10 and ensuring the safety of the entire water heater.

[0063] Specifically, the clamp body 21 includes two straight segments 211 and two curved segments 212. The two curved segments 212 are arranged opposite each other and respectively fit against the walls of the two tank bodies 10 on opposite sides. The two straight segments 211 are located on both sides of the tank body 10, and each straight segment 211 is connected to two curved segments 212 at both ends. One of the straight segments 211 has the aforementioned opening 2101. By setting the curved segments 212 that fit against the walls of the tank bodies 10, the contact area between the clamp body 21 and the tank bodies 10 can be increased, thereby further improving the fastening effect of the clamp 20 on the tank bodies 10. By setting the opening 2101 on the straight segments 211, the gap between the straight segments 211 and the tank bodies 10 can be fully utilized to accommodate the inwardly extending locking part 22, thereby preventing the locking part 22 from scratching the tank bodies 10, ensuring the appearance quality of the tank bodies 10 and the safety performance of the water heater during use.

[0064] like Figure 2 and Figure 3 As shown, to facilitate the installation of fasteners, the clamp body 21 is provided with an installation clearance hole 2102 for avoiding the installation of fasteners. That is to say, when installing fasteners, the fasteners can be inserted into the through holes of the two locking parts 22 through the installation clearance hole 2102 to lock the two locking parts 22, so as to avoid interference between the installation equipment and the bladder 10 during the installation of fasteners, which would cause damage to the bladder 10.

[0065] Furthermore, the locking part 22 is inclined toward the side closer to the mounting clearance hole 2102 to shorten the distance between the mounting clearance hole 2102 and the through hole on the locking part 22, thereby further improving the convenience of fastener installation.

[0066] Specifically, the straight segment 211 with the opening 2101 includes a first segment 2111 and a second segment 2112. The first end of the first segment 2111 and the first end of the second segment 2112 are respectively connected to the corresponding side of the arc segment 212. The second ends of the first segment 2111 and the second ends of the second segment 2112 are spaced apart to form the opening 2101. Two locking parts 22 are respectively connected to the second ends of the first segment 2111 and the second ends of the second segment 2112. In this embodiment, the mounting clearance hole 2102 is opened on the first segment 2111, and the locking part 22 is inclined towards the first segment 2111.

[0067] In this embodiment, the included angle α between the first segment 2111 and the locking part 22 connected to it is 40° to 75°, and the two locking parts 22 are parallel. That is, the included angle between the second segment 2112 and the locking part 22 connected to it is 180° - α. Through simulation and experimental verification, the locking part 22 with this tilt angle has better structural stability and better installation convenience of the fastener. For example, the included angle α between the first segment 2111 and the locking part 22 connected to it can be 45°, 48°, 50°, 52°, 55°, 56°, 58°, 60°, 62°, 65°, 66°, 68°, 70°, 72°, etc. Of course, the specific value of α is not limited to the above range, and the designer can adjust the specific value of α according to the actual processing requirements.

[0068] In other embodiments, the mounting clearance hole 2102 can also be provided on the second segment 2112. In this case, the locking part 22 can be inclined toward the second segment 2112, and this design can also achieve the above-mentioned effect.

[0069] Figure 4 A schematic diagram of the second structure of the clamp 20 provided in this embodiment is shown. Figure 5 It shows Figure 4 A magnified view of point B. (See attached image.) Figures 4-5 and combined Figure 3 As shown, a reinforcing rib 220 is provided between the locking part 22 and the clamp body 21. By providing the reinforcing rib 220, the structural strength of the locking part 22 can be improved, preventing the locking part 22 from breaking due to excessive locking force when the fastener tightens the two locking parts 22. Optionally, there are multiple reinforcing ribs 220, which are spaced apart along the width direction of the clamp body 21 to further improve the structural strength of the locking part 22.

[0070] Optionally, in this embodiment, the outer side of the connection position between the clamp body 21 and the locking part 22 is recessed towards the inner side of the clamp body 21 to form a reinforcing rib 220 on the inner side of the connection position between the clamp body 21 and the locking part 22. This arrangement is simple in structure, easy to process, and can ensure that the clamp body 21 has a uniform thickness at each position, resulting in good structural stability.

[0071] like Figure 3 and Figure 5 As shown, the length L of the locking part 22 is 15mm to 25mm. This design avoids the situation where the locking part 22 is too short, resulting in poor structural strength and difficulty in connecting fasteners; on the other hand, it avoids the situation where the locking part 22 is too long, causing interference with the inner tube 10. For example, the length L of the locking part 22 can be 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, etc. Of course, this embodiment does not limit the specific value of L, and designers can adjust the specific value of L according to actual processing requirements.

[0072] Optionally, the opening 2101 is located at 1 / 3 to 1 / 2 of the length of the straight segment 211. (See reference) Figure 1 and Figure 2 The distance between the straight segment 211 and the inner tube 10 gradually decreases from the middle to both ends. With the above arrangement, it can be ensured that there is sufficient space between the straight segment 211 and the inner tube 10 to accommodate the locking part 22, thereby further avoiding the situation where the locking part 22 scratches the inner tube 10.

[0073] Optionally, the straight segment 211, the curved segment 212, and the locking part 22 are integrally formed, which saves the connection structure between the three, thereby reducing the number of parts, simplifying the assembly process, and making installation simple. At the same time, it helps to improve the overall strength of the clamp 20 and ensure the structural stability of the inner liner component 100.

[0074] like Figure 1As shown, the inner tank assembly 100 also includes a bracket 30 mounted on the clamp 20, which is fixedly connected to the external wall mount (not shown) via a connector (not shown). The external wall mount is mounted on the outer casing and enables the water heater to be installed on the bathroom wall.

[0075] Specifically, the bracket 30 is provided with connecting holes for connecting components to pass through. The connecting components can pass through the connecting holes and be fixedly connected to the external wall bracket, thereby achieving a stable connection between the bracket 30 and the external wall bracket. In this embodiment, the connecting component is a connecting bolt, which has the advantages of convenient assembly and disassembly and a stable connection. Optionally, the bracket 30 is welded to the clamp 20, which has the advantages of high connection strength, high connection accuracy, and low cost.

[0076] Figure 6 It shows Figure 2 A magnified view of point C. (See attached image.) Figure 6 and combined Figure 1 As shown, to ensure the installation accuracy of the inner liner assembly 100, the clamp body 21 is also provided with an installation positioning hole 2103, which is used to engage with the positioning pin on the installation equipment. Optionally, the installation positioning hole 2103 is a non-circular hole, which can prevent the inner liner assembly 100 from rotating about the axis of the positioning pin due to a circular positioning hole, thereby ensuring that the inner liner assembly 100 has a good positioning effect during installation. For example, the installation positioning hole 2103 can be a regular or irregular triangular hole, rectangular hole, pentagonal hole, hexagonal hole, etc. Of course, the shape of the installation positioning hole 2103 in this embodiment is not limited to the above shapes, and the designer can choose any shape of installation positioning hole 2103 according to actual processing requirements.

[0077] Of course, in other embodiments, the mounting positioning hole 2103 can also be set as a circular hole, and the number of mounting positioning holes 2103 is at least two, which can also achieve the anti-rotation effect.

[0078] Continue as Figure 1 As shown, there are at least two clamps 20, which are arranged at intervals along the axial direction of the tank body 10 and together tighten the tank body 10. Each clamp 20 has a corresponding fastener and bracket 30. By setting at least two clamps 20 to tighten the tank body 10 simultaneously, the tightening effect on the tank body 10 can be further improved. At the same time, the bracket 30 on each clamp 20 is connected to an external wall bracket, which also ensures that the water heater is in a horizontal position after being hung up.

[0079] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A clamp, characterized in that, include: The clamp body (21) can be clamped to the outside of the part to be clamped, and the clamp body (21) is provided with an opening (2101); The locking part (22) is connected to both ends of the opening (2101), and the locking part (22) extends toward the inside of the clamp body (21). The two locking parts (22) are connected by fasteners to clamp the part to be clamped.

2. The clamp according to claim 1, characterized in that, The opening (2101) is located on the clamp body (21) at a part that does not contact the clamping member.

3. The clamp according to claim 2, characterized in that, The component to be clamped is the tank (10) of a water heater, and there are two tanks (10), which are arranged side by side. The clamp body (21) includes two straight segments (211) and two arc segments (212). The two arc segments (212) are arranged opposite each other and respectively fit against the gallbladder walls on opposite sides of the two gallbladder bodies (10). The two straight segments (211) are located on both sides of the gallbladder body (10), and each straight segment (211) is connected to the two arc segments (212) at both ends. One of the straight segments (211) is provided with the opening (2101).

4. The clamp according to claim 3, characterized in that, The opening (2101) is located at 1 / 3 to 1 / 2 of the straight segment (211).

5. The clamp according to claim 1, characterized in that, The clamp body (21) is provided with an installation clearance hole (2102) for avoiding the installation of the fastener.

6. The clamp according to claim 5, characterized in that, The locking part (22) is inclined toward the side closer to the mounting clearance hole (2102).

7. The clamp according to claim 1, characterized in that, A reinforcing rib (220) is provided between the locking part (22) and the clamp body (21).

8. The clamp according to claim 7, characterized in that, The outer side of the connection position between the clamp body (21) and the locking part (22) is recessed towards the inner side of the clamp body (21) to form the reinforcing rib (220) on the inner side of the connection position between the clamp body (21) and the locking part (22).

9. The clamp according to claim 1, characterized in that, The locking part (22) has a reinforcing bending part (221) on both sides of its edge, and the reinforcing bending part (221) is set at an angle to the locking part (22).

10. The clamp according to claim 9, characterized in that, The two reinforcing bends (221) of each locking part (22) may be bent in the same or different directions.

11. The clamp according to claim 1, characterized in that, The length L of the locking part (22) is 15mm to 25mm.

12. The clamp according to any one of claims 1 to 11, characterized in that, The clamp body (21) is also provided with an installation positioning hole (2103), which is used to engage with the positioning pin on the installation equipment.

13. The clamp according to claim 12, characterized in that, The mounting positioning hole (2103) is a non-circular hole.

14. An inner liner assembly, characterized in that, include: At least two tubes (10) are arranged side by side; The clamp as described in any one of claims 1 to 13, wherein the clamp body (21) of the clamp is clamped outside at least two of the said gallbladders (10); Fasteners pass through and lock the two locking parts (22) in sequence, so that the clamp body (21) clamps the two bladders (10).

15. The inner liner assembly according to claim 14, characterized in that, The gallbladder (10) is made of non-metallic material.

16. A water heater, characterized in that, It includes a housing and an inner liner assembly as described in claim 15, the inner liner assembly being installed within the housing.

Images