Multiple water purification device

Abstract

The utility model discloses a multiple water purification device which comprises a mounting frame and a filtering unit, a water outlet panel is fixedly arranged on the mounting frame, and a water inlet, a deep purification water outlet and a shallow purification water outlet are formed in the water outlet panel in a penetrating mode. Multiple filtration is performed on a water source through the first filtering tank, the second filtering tank, the nanofiltration tank and the ultrafiltration tank, and meanwhile, a user can select a water source singly filtered by the ultrafiltration tank or a water source doubly filtered by the nanofiltration tank and the ultrafiltration tank, so that the use flexibility of the device is improved; due to the fact that all the components are distributed in the first installation reference face, the second installation reference face or the area between the two installation reference faces, the overall compactness of the device is improved, the occupied size is reduced, maintenance of the filtering units is facilitated, and the use reliability of the device is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification technical field, especially a multiple water purification device. BACKGROUND

[0002] The water purifier is also called water purifier, water purifier, and is the water treatment equipment that carries out the water quality according to the water use requirement and carries out the water quality filtration, purification treatment, can remove the float in water, heavy metal, bacteria, virus, residual chlorine, silt, rust, microorganism etc.

[0003] The existing water purification device mostly adopts ultrafiltration or nanofiltration to water quality treatment, for single filtration means water purification device, cannot select the water purification degree according to user demand, and for the water purification device of adopting ultrafiltration, nanofiltration multiple filtration, due to the increase of component and pipeline, the overall volume of device is difficult to control, is not favorable to the arrangement of water purification device. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a multiple water purification device that is compact in structure and high in reliability.

[0005] To achieve the above object, the utility model is realized by the following technical scheme.

[0006] The application provides a multiple water purification device, which comprises a mounting frame and a filtering unit fixedly arranged on the mounting frame, a water outlet panel is fixedly arranged on the mounting frame, and a water inlet, a shallow purification water outlet and a deep purification water outlet are through arranged on the water outlet panel.

[0007] The filtering unit comprises:

[0008] A water inlet pump is fixedly provided with a water inlet pipeline at the water inlet end, and the water inlet pipeline is communicated with the water inlet at the end away from the water inlet pump;

[0009] A first filter tank is communicated with the water outlet end of the water inlet pump through a drainage pipeline at the water inlet end;

[0010] A second filter tank is communicated with the filtering water outlet end of the first filter tank through a connecting pipeline at the water inlet end;

[0011] An ultrafiltration tank is communicated with the filtering water outlet end of the second filter tank through an ultrafiltration flow distribution pipeline at the water inlet end;

[0012] A shallow purification ultraviolet sterilizer is communicated with the filtering water outlet end of the ultrafiltration tank through an ultrafiltration flow collection pipeline at the water inlet end, and the water outlet end is connected with a shallow purification water outlet pipeline; and the shallow purification water outlet pipeline is communicated with the shallow purification water outlet at the end away from the shallow purification ultraviolet sterilizer;

[0013] The linkage water pump is communicated with the water outlet end of the shallow-sterilization ultraviolet sterilizer through a first linkage pipeline, and the water inlet end of the nanofiltration tank is communicated with the water outlet end of the ultraviolet sterilizer through a nanofiltration flow distribution pipeline.

[0014] The nanofiltration tank is communicated with the water inlet end of the water storage tank through a nanofiltration flow collection pipeline.

[0015] The water storage tank is communicated with the water inlet end of the deep-sterilization ultraviolet sterilizer through a second linkage pipeline.

[0016] The deep-sterilization ultraviolet sterilizer is connected with a deep-sterilization water outlet pipeline, and the deep-sterilization water outlet pipeline is communicated with the deep-sterilization water outlet at an end away from the deep-sterilization ultraviolet sterilizer.

[0017] The first filter tank and the second filter tank are provided with coconut activated carbon and KDF filter elements for filtering water, and the nanofiltration flow distribution pipeline is provided with a control valve.

[0018] The linkage water pump, the nanofiltration tank, the ultrafiltration tank and the shallow-sterilization ultraviolet sterilizer are located on a first installation reference surface, the first filter tank and the second filter tank are located on a second installation reference surface, the first installation reference surface and the second installation reference surface are perpendicular to the ground and parallel to each other, and the water inlet pump and the deep-sterilization ultraviolet sterilizer are located between the first installation reference surface and the second installation reference surface.

[0019] Further limited, the above-mentioned one kind of multiple water purification device, wherein, the water inlet, the deep-sterilization water outlet, the shallow-sterilization water outlet are located between the first installation reference surface, the second installation reference surface, and are arranged linearly along the vertical direction.

[0020] Further limited, the above-mentioned one kind of multiple water purification device, wherein, the ultrafiltration tank is provided with a plurality of, a plurality of the ultrafiltration tank is linearly arrayed and is arranged at intervals on the first installation reference surface.

[0021] Further limited, the above-mentioned one kind of multiple water purification device, wherein, the ultrafiltration flow distribution pipeline is divided into multiple paths at an end away from the second filter tank and is communicated with the water inlet end of a plurality of ultrafiltration tanks respectively, and the ultrafiltration flow collection pipeline is divided into multiple paths at an end away from the shallow-sterilization ultraviolet sterilizer and is communicated with the filtered water outlet end of a plurality of ultrafiltration tanks respectively.

[0022] Further limited, the above-mentioned one kind of multiple water purification device, wherein, the nanofiltration tank is provided with a plurality of, a plurality of the nanofiltration tank is linearly arrayed and is arranged at intervals on the first installation reference surface.

[0023] Further limited, the above-mentioned one kind of multiple water purification device, wherein, the nanofiltration flow distribution pipeline is divided into multiple paths at an end away from the linkage water pump and is communicated with the water inlet end of a plurality of nanofiltration tanks respectively, and the nanofiltration flow collection pipeline is divided into multiple paths at an end away from the deep-sterilization ultraviolet sterilizer and is communicated with the filtered water outlet end of a plurality of nanofiltration tanks respectively.

[0024] Further, the multiple water purification device, wherein the mounting frame is fixed with a plurality of reinforcing plates.

[0025] Further, the multiple water purification device, wherein the mounting frame is fixed with a plurality of reinforcing plates.

[0026] Further, the multiple water purification device, wherein the mounting frame is fixed with a plurality of reinforcing plates.

[0027] Further, the multiple water purification device, wherein the mounting frame is fixed with a plurality of reinforcing plates.

[0028] The utility model at least has the following beneficial effects:

[0029] The first filter tank, second filter tank, nanofiltration tank and ultrafiltration tank are used for multiple filtration of water source, and the user can select water source filtered by the ultrafiltration tank or water source filtered by the nanofiltration tank and ultrafiltration tank, so that the use flexibility of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The structure diagram under the "housing assembly" of the multiple water purification device of the embodiment of the application is hidden;

[0031] Figure 2 The structure diagram of the "filtration unit" part of the multiple water purification device of the embodiment of the application is shown;

[0032] Figure 3 The structure diagram of the "filtration unit" part of the multiple water purification device of the embodiment of the application is shown;

[0033] Figure 4 The structure diagram of the "filtration unit" part of the multiple water purification device of the embodiment of the application is shown;

[0034] Figure 5 The structure diagram of the "nanofiltration tank 400 and ultrafiltration tank 500" part of the multiple water purification device of the embodiment of the application is shown.

[0035] REFERENCE NUMERALS

[0036] The installation frame 110, the water outlet panel 120, the reinforcing plate 130, the water inlet 121, the deep clean water outlet 122, the shallow clean water outlet 123, the water inlet pump 210, the water inlet pipeline 211, the water outlet pipeline 212, the linkage water pump 220, the first linkage pipeline 221, the first filter tank 310, the second filter tank 320, the connecting pipeline 330, the ultrafiltration distribution pipeline 340, the nanofiltration tank 400, the nanofiltration distribution pipeline 410, the nanofiltration collection pipeline 420, the ultrafiltration tank 500, the ultrafiltration collection pipeline 510, the deep clean ultraviolet sterilizer 610, the deep clean water outlet pipeline 611, the shallow clean ultraviolet sterilizer 620, the shallow clean water outlet pipeline 621, and the water storage tank 700. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0038] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the front and rear associated objects are in an "or" relationship.

[0039] The multiple water purification device provided by the embodiments of the present application will be described in detail below in combination with the drawings, through specific embodiments and application scenarios.

[0040] As shown in the drawings, Figures 1 to 5 The multiple water purification device provided by the embodiments of the present application includes an installation frame 110 and a filter unit. The installation frame 110 is fixedly provided with a water outlet panel 120. The water outlet panel 120 is through-provided with a water inlet 121, a deep clean water outlet 122, and a shallow clean water outlet 123.

[0041] The filter unit includes a water inlet pump 210, a linkage water pump 220, a first filter tank 310, a second filter tank 320, a nanofiltration tank 400, an ultrafiltration tank 500, a deep clean ultraviolet sterilizer 610, a shallow clean ultraviolet sterilizer 620, and a water storage tank 700, which are fixedly arranged on the installation frame 110.

[0042] The water inlet end of the water inlet pump 210 is fixedly provided with a water inlet pipeline 211, the water inlet pipeline 211 is communicated with the water inlet 121 at an end away from the water inlet pump 210, the water inlet end of the first filter tank 310 is communicated with the water outlet end of the water inlet pump 210 through a water outlet pipeline 212, the water inlet end of the second filter tank 320 is communicated with the filtered water outlet end of the first filter tank 310 through a connecting pipeline 330, the water inlet end of the ultrafiltration tank 500 is communicated with the filtered water outlet end of the second filter tank 320 through an ultrafiltration flow distribution pipeline 340, the water inlet end of the shallow-purity ultraviolet sterilizer 620 is communicated with the filtered water outlet end of the ultrafiltration tank 500 through an ultrafiltration flow collection pipeline 510, and the water outlet end is connected with a shallow-purity water outlet pipeline 621, the shallow-purity water outlet pipeline 621 is communicated with the shallow-purity water outlet 123 at an end away from the shallow-purity ultraviolet sterilizer 620.

[0043] The water inlet end of the linkage water pump 220 is communicated with the water outlet end of the shallow-purity ultraviolet sterilizer 620 through a first linkage pipeline 221, the water outlet end is communicated with the water inlet end of the nanofiltration tank 400 through a nanofiltration flow distribution pipeline 410, the filtered water outlet end of the nanofiltration tank 400 is communicated with the water inlet end of the water storage tank 700 through a nanofiltration flow collection pipeline 420, the water outlet end of the water storage tank 700 is communicated with the water inlet end of the deep-purity ultraviolet sterilizer 610 through a second linkage pipeline 710, the water outlet end of the deep-purity ultraviolet sterilizer 610 is connected with a deep-purity water outlet pipeline 611, and the deep-purity water outlet pipeline 611 is communicated with the deep-purity water outlet 122 at an end away from the deep-purity ultraviolet sterilizer 610.

[0044] The first filter tank 310 and the second filter tank 320 are provided with coconut activated carbon and KDF filter cores (KDF is a high-purity copper alloy, which can perfectly remove heavy metals and acid radicals in water, improve the activation degree of water, and is more beneficial to the absorption of water by the human body, protects the health of the human body, and promotes the metabolism of the human body) for filtering water, and a control valve is arranged on the nanofiltration flow distribution pipeline 410.

[0045] The linkage water pump 220, the nanofiltration tank 400, the ultrafiltration tank 500 and the shallow-purity ultraviolet sterilizer 620 are located on the first installation reference surface, the first filter tank 310, the second filter tank 320 and the water storage tank 700 are located on the second installation reference surface, the first installation reference surface and the second installation reference surface are perpendicular to the ground and parallel to each other, and the water inlet pump 210 and the deep-purity ultraviolet sterilizer 610 are located between the first installation reference surface and the second installation reference surface.

[0046] It can be understood that the filtering capacity of the nanofiltration tank 400 is stronger than that of the ultrafiltration tank 500, the water source filtered by the ultrafiltration tank 500 can retain part of the minerals, and the water source filtered by the nanofiltration tank 400 does not retain minerals, and since the filtering capacity of the nanofiltration tank 400 is relatively strong, the filtering efficiency is relatively slow, and the output of the filtered water flow is relatively small.

[0047] When the user selects to obtain filtered water through the shallow-purity water outlet 123, the water inlet pump 210 starts to output the water source input through the water inlet 121 and the water inlet pipeline 211 to the first filter tank 310 and the second filter tank 320, the first filter tank 310 and the second filter tank 320 filter the water source through the coconut shell activated carbon and KDF filter element, and then output the filtered water to the ultrafiltration tank 500. The linkage water pump 220 is closed, the control valve on the nanofiltration flow distribution pipeline 410 is closed, the filtered water output by the ultrafiltration tank 500 is disinfected through the shallow-purity ultraviolet sterilizer 620, and then discharged through the shallow-purity water outlet pipeline 621 and the shallow-purity water outlet 123. When the user selects to obtain filtered water through the deep-purity water outlet 122, the water inlet pump 210 starts to output the water source input through the water inlet 121 and the water inlet pipeline 211 to the first filter tank 310 and the second filter tank 320, the first filter tank 310 and the second filter tank 320 filter the water source through the coconut shell activated carbon and KDF filter element, and then output the filtered water to the ultrafiltration tank 500. The control valve on the nanofiltration flow distribution pipeline 410 is opened, the linkage water pump 220 is opened to output the filtered water through the ultrafiltration tank 500 to the nanofiltration tank 400, the nanofiltration tank 400 outputs the filtered water to the water storage tank 700 through the nanofiltration flow collection pipeline 420, and the water storage tank 700 outputs the filtered water to the deep-purity ultraviolet sterilizer 610 through the second linkage pipeline 710. The filtered water output by the water storage tank 700 is disinfected through the deep-purity ultraviolet sterilizer 610, and then discharged through the deep-purity water outlet pipeline 611 and the deep-purity water outlet 122. Since the water storage tank 700 can pre-store a certain amount of filtered water, the output water flow of the deep-purity water outlet 122 can be increased.

[0048] In the embodiment of the present application, the above-mentioned multi-purification water device is adopted, the water source is subjected to multiple filtration through the first filter tank 310, the second filter tank 320, the nanofiltration tank 400 and the ultrafiltration tank 500, and the user can select the water source subjected to single filtration through the ultrafiltration tank 500 or the water source subjected to double filtration through the nanofiltration tank 400 and the ultrafiltration tank 500, thereby improving the use flexibility of the device. Since each component is distributed in the region between the first installation reference surface, the second installation reference surface or the two installation reference surfaces, the overall compactness of the device is improved, the occupied volume is reduced, the maintenance of the filtration unit is facilitated, and the use reliability of the device is ensured.

[0049] In a preferred embodiment, as shown in Figure 1 , Figure 2 , Figure 4 The water inlet 121, the deep-purity water outlet 122 and the shallow-purity water outlet 123 are located between the first installation reference surface and the second installation reference surface, and are arranged in a linear array along the vertical direction.

[0050] It can be understood that, since the water inlet 121, the deep pure water outlet 122 and the shallow pure water outlet 123 are located between the first installation reference surface and the second installation reference surface, a larger accommodation space is provided for the water inlet pipeline 211, the deep pure water outlet pipeline 611 and the shallow pure water outlet pipeline 621, thereby facilitating the overall assembly of the device.

[0051] In a preferred embodiment, as shown in Figures 1 to 5 The plurality of ultrafiltration tanks 500 are linearly arrayed and arranged at intervals on the first installation reference surface.

[0052] The ultrafiltration distribution pipeline 340 is divided into a plurality of branches at one end away from the second filter tank 320 and is in communication with the water inlet ends of the plurality of ultrafiltration tanks 500, and the ultrafiltration collection pipeline 510 is divided into a plurality of branches at one end away from the shallow pure ultraviolet sterilizer 620 and is in communication with the filtered water outlet ends of the plurality of ultrafiltration tanks 500.

[0053] In a preferred embodiment, as shown in Figures 1 to 5 The two ultrafiltration tanks 500 are specifically provided.

[0054] The ultrafiltration distribution pipeline 340 is divided into two branches at one end away from the second filter tank 320 and is in communication with the water inlet ends of the two ultrafiltration tanks 500, and the ultrafiltration collection pipeline 510 is divided into two branches at one end away from the shallow pure ultraviolet sterilizer 620 and is in communication with the filtered water outlet ends of the two ultrafiltration tanks 500.

[0055] In a preferred embodiment, as shown in Figures 1 to 5 The plurality of nanofiltration tanks 400 are linearly arrayed and arranged at intervals on the first installation reference surface.

[0056] The nanofiltration distribution pipeline 410 is divided into a plurality of branches at one end away from the linkage water pump 220 and is in communication with the water inlet ends of the plurality of nanofiltration tanks 400, and the nanofiltration collection pipeline 420 is divided into a plurality of branches at one end away from the deep pure ultraviolet sterilizer 610 and is in communication with the filtered water outlet ends of the plurality of nanofiltration tanks 400.

[0057] In a preferred embodiment, as shown in Figures 1 to 5 The three nanofiltration tanks 400 are specifically provided.

[0058] The nanofiltration distribution pipeline 410 is divided into three branches at one end away from the linkage water pump 220 and is in communication with the water inlet ends of the three nanofiltration tanks 400, and the nanofiltration collection pipeline 420 is divided into three branches at one end away from the deep pure ultraviolet sterilizer 610 and is in communication with the filtered water outlet ends of the three nanofiltration tanks 400.

[0059] It can be understood that, by providing a plurality of nanofiltration tanks 400 and a plurality of ultrafiltration tanks 500, the overall water purification efficiency of the system can be improved, thereby reducing the water waiting time of the user and optimizing the user experience.

[0060] In a preferred embodiment, as shown in Figure 1 A plurality of reinforcing plates 130 are fixed on the mounting frame 110.

[0061] It can be understood that the overall structural strength of the mounting frame 110 can be increased by the reinforcing plates 130, and the stability of the device as a whole can be improved.

[0062] In a preferred embodiment, a shell assembly is fixed on the outer surface of the mounting frame 110.

[0063] In a preferred embodiment, a closable door plate assembly is arranged on the shell assembly on the side of the first mounting reference surface away from the second mounting reference surface.

[0064] In a preferred embodiment, a closable door plate assembly is arranged on the shell assembly on the side of the second mounting reference surface away from the first mounting reference surface.

[0065] It can be understood that by opening the door plate assembly, the filter core replacement and maintenance of the first filter tank 310, the second filter tank 320, the nanofiltration tank 400, and the ultrafiltration tank 500 at the corresponding positions of the first mounting reference surface and the second mounting reference surface can be performed, which is convenient for the operator to operate.

[0066] It should be noted that in this document, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device that includes the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to the order of performing the functions shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from the described order, and various steps can be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0067] The embodiments of the present application are described above in conjunction with the drawings, but the present application is not limited to the above-described specific embodiments, which are merely illustrative and not limiting. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope of protection of the claims, which are all within the scope of protection of the present application.

Claims

1. A multi-stage water purification device, characterized in that, It includes an installation frame and a filter unit fixedly mounted on the installation frame. A water outlet panel is fixedly mounted on the installation frame. A water outlet panel is provided with a water inlet, a shallow clean water outlet and a deep clean water outlet. The filtering unit includes: The water inlet pump has a water inlet pipe fixedly installed at the water inlet end, and the end of the water inlet pipe away from the water inlet pump is connected to the water inlet. The first filter tank has its inlet end connected to the outlet end of the inlet pump via a drain pipe. The inlet of the second filter tank is connected to the outlet of the first filter tank via a connecting pipe. The inlet of the ultrafiltration tank is connected to the outlet of the second filter tank via an ultrafiltration distribution pipe. The shallow ultraviolet sterilizer has an inlet end connected to the filter outlet end of the ultrafiltration tank via an ultrafiltration manifold, and an outlet end connected to a shallow ultraviolet outlet pipe. The end of the shallow ultraviolet outlet pipe away from the shallow ultraviolet sterilizer is connected to the shallow ultraviolet outlet. The water pump is connected to the water outlet of the shallow ultraviolet sterilizer via the first linkage pipe, and the water outlet is connected to the water inlet of the nanofiltration tank via the nanofiltration distribution pipe. The nanofiltration tank has its filtered water outlet connected to the water inlet of the storage tank via a nanofiltration manifold. The water storage tank has its outlet connected to the inlet of the deep-cleaning ultraviolet sterilizer via a second linkage pipe. The deep-cleaning ultraviolet sterilizer has a deep-cleaning water outlet pipe connected to its outlet end, and the end of the deep-cleaning water outlet pipe away from the deep-cleaning ultraviolet sterilizer is connected to the deep-cleaning water outlet. The first and second filter tanks are equipped with coconut shell activated carbon and KDF filter elements for filtering water, and the nanofiltration distribution pipeline is equipped with a control valve. The linked water pump, nanofiltration tank, ultrafiltration tank, and shallow ultraviolet sterilizer are located on the first mounting reference surface. The first filter tank, second filter tank, and water storage tank are located on the second mounting reference surface. The first and second mounting reference surfaces are perpendicular to the ground and parallel to each other. The water inlet pump and deep ultraviolet sterilizer are located between the first and second mounting reference surfaces.

2. The multi-stage water purification device according to claim 1, characterized in that, The inlet, deep clean outlet, and shallow clean outlet are located between the first installation reference surface and the second installation reference surface, and are arranged in a linear array along the vertical direction.

3. The multi-stage water purification device according to claim 1, characterized in that, The ultrafiltration tanks are provided in multiples, and the multiple ultrafiltration tanks are arranged in a linear array and spaced apart on the first mounting reference surface.

4. The multi-stage water purification device according to claim 3, characterized in that, The ultrafiltration distribution pipe splits into multiple paths at the end furthest from the second filter tank and connects to the inlet of multiple ultrafiltration tanks respectively. The ultrafiltration collection pipe splits into multiple paths at the end furthest from the shallow ultraviolet sterilizer and connects to the outlet of multiple ultrafiltration tanks respectively.

5. A multi-stage water purification device according to claim 1, characterized in that, The nanofiltration tanks are provided in multiples, and the multiple nanofiltration tanks are arranged in a linear array and spaced apart on a first mounting reference surface.

6. A multi-stage water purification device according to claim 5, characterized in that, The nanofiltration distribution pipe splits into multiple paths at the end furthest from the linkage water pump and connects to the inlet of multiple nanofiltration tanks respectively. The nanofiltration collection pipe splits into multiple paths at the end furthest from the deep-cleaning ultraviolet sterilizer and connects to the filtration outlet of multiple nanofiltration tanks respectively.

7. A multi-stage water purification device according to claim 1, characterized in that, Multiple reinforcing plates are fixedly installed on the mounting frame.

8. A multi-stage water purification device according to claim 1, characterized in that, A housing assembly is fixedly mounted on the outer surface of the mounting frame.

9. A multi-stage water purification device according to claim 8, characterized in that, The outer casing assembly has an openable and closable first door panel assembly on the side of the first mounting reference surface away from the second mounting reference surface.

10. A multi-stage water purification device according to claim 8 or 9, characterized in that, The outer casing assembly has an openable and closable second door panel assembly on the side of the second mounting reference surface away from the first mounting reference surface.

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