Refrigerator hinge detection tool

By designing a refrigerator hinge inspection fixture, and utilizing inspection pins, inspection holes, and positioning recesses, the problem of door misalignment caused by hinge shape and position tolerances was solved, enabling fast, simple inspection and high pass rate hinge inspection.

CN224004339UActive Publication Date: 2026-03-17TCL HOME APPLIANCES (HEFEI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In existing technologies, the form and position tolerances of the hinges in refrigerators are relatively large, which causes the door to be crooked, affects the appearance quality, and makes it difficult to inspect quickly and conveniently.

Method used

A refrigerator hinge inspection fixture was designed, including a base, a first sliding component, and a second sliding component. The fixture can quickly detect the spacing of the hinge fixing holes, the verticality of the hinge plate, and the form and position conformity of the stop part through the detection pin, detection hole, and positioning notch.

Benefits of technology

It enables quick and easy testing of hinge quality, improves testing efficiency and pass rate, and enhances the overall quality of hinges.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a refrigerator hinge detection tool, which comprises a base, a first sliding assembly and a second sliding assembly, and is characterized in that the base comprises a first detection wall, and the first detection wall is connected with a plurality of detection pins arranged corresponding to hinge fixing holes; the first sliding assembly is in sliding connection with the base and comprises a second detection wall, and the second detection wall is perpendicular to the first detection wall and is provided with a detection hole corresponding to the hinge shaft; the second sliding assembly is connected with the base in a sliding mode, and a positioning notch used for being matched with the hinge stopping part in shape is formed. The refrigerator hinge detection tool provided by the embodiment of the utility model can rapidly detect whether the distance between hinge fixing holes, the perpendicularity between two hinge plates and the shapes and positions of a hinge shaft and a stop part are qualified or not, is simple in structure, is convenient to operate, can greatly improve the detection efficiency, and improves the qualified rate of hinges which are finally put into application.
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Description

Technical Field

[0001] This application belongs to the field of refrigerator technology, and in particular relates to a refrigerator hinge testing fixture. Background Technology

[0002] As users increasingly demand aesthetically pleasing refrigerators, the refrigerator door must be perfectly aligned with the refrigerator body when closed, and the gap between doors must be uniform and stable. The central hinge is a crucial component connecting the refrigerator door and the body, playing a key role in ensuring proper opening and closing and a tight seal. Located in the middle of the door, the central hinge works in conjunction with the upper and lower hinges to ensure door stability and balance. However, limitations in the manufacturing precision of hinge components lead to quality variations between hinges. Large dimensional tolerances in the central hinge can easily cause the refrigerator door to become misaligned, severely impacting the refrigerator's appearance. Utility Model Content

[0003] This application provides a refrigerator hinge testing fixture, which can solve the technical problem of how to quickly and conveniently test whether the hinges in a refrigerator are of acceptable quality.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A refrigerator hinge testing fixture, comprising:

[0006] The base includes a first detection wall, on which a plurality of detection pins are connected for being configured to correspond to hinge fixing holes;

[0007] The first sliding component is slidably connected to the base and includes a second detection wall, which is perpendicular to the first detection wall and has a detection hole for corresponding to the hinge axis.

[0008] The second sliding component is slidably connected to the base and has a positioning notch for conformally matching the hinge stop.

[0009] In some embodiments, the first detection wall has a plurality of connection holes, and each detection pin is used to detachably connect to one of the plurality of connection holes to adapt to a corresponding model of hinge.

[0010] In some embodiments, the connecting hole is a threaded hole, and the detection pin has a threaded end adapted to be screwed into the connecting hole so that the detection pin can be detachably connected to a plurality of the connecting holes.

[0011] In some embodiments, the second detection wall has a plurality of detection holes, each of which is used to adapt to a hinge of a corresponding model.

[0012] In some embodiments, the first sliding assembly includes two first sliders slidably connected to the base, each first slider including a second detection wall, the two second detection walls being disposed opposite to each other on both sides of the hinge, and respectively used to detect the hinge axis on opposite sides of the refrigerator hinge through detection holes.

[0013] In some embodiments, the first detection wall is provided with a first sliding groove, and the first slider further includes a boss portion, which is slidably disposed in the first sliding groove so that the first slider is slidably connected to the base.

[0014] In some embodiments, the second sliding component includes:

[0015] The second slider is slidably connected to the base.

[0016] Multiple locating pins are connected to the second slider and surround to form the locating recess.

[0017] In some embodiments, the second slider has a plurality of positioning holes, and each positioning pin is detachably connected to one of the plurality of positioning holes to form a positioning recess adapted to a corresponding model of hinge.

[0018] In some embodiments, the second slider is fixedly connected to the first slider.

[0019] In some embodiments, the refrigerator hinge detection fixture further includes a clamping assembly disposed on the first detection wall for pressing the refrigerator hinge so that the refrigerator hinge fits against the first detection wall.

[0020] The refrigerator hinge testing fixture provided in this application can quickly detect the spacing of the hinge fixing holes, the perpendicularity between the two hinge plates, and whether the shape and position of the hinge shaft and the stop are qualified. Moreover, the fixture has a simple structure and is easy to operate, which can greatly improve the testing efficiency and increase the pass rate of the hinges that are finally put into use. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0023] Figure 1This is a schematic diagram of the structure of a hinge used in a refrigerator.

[0024] Figure 2 This is a schematic diagram of a refrigerator hinge inspection fixture used to inspect hinges, as provided in an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the refrigerator hinge detection fixture provided in an embodiment of this application.

[0026] Figure 4 for Figure 3 The exploded view of the refrigerator hinge inspection fixture shown.

[0027] Figure 5 This is a schematic diagram of the structure of the base provided in an embodiment of this application.

[0028] Figure 6 This is a schematic diagram of the structure of the first sliding component provided in an embodiment of this application.

[0029] Figure 7 This is a schematic diagram of the structure of the second sliding component provided in an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Hinges; 200. Refrigerator hinge testing fixtures;

[0032] 111. First hinge plate; 112. Second hinge plate; 120. Fixing hole; 130. Hinge shaft; 140. Stop; 210. Base; 220. First sliding assembly; 230. Second sliding assembly; 240. Clamping assembly;

[0033] 211. First detection wall; 212. Detection pin; 213. Connecting hole; 221. Second detection wall; 222. Detection hole; 223. First slider; 224. Boss; 231. Positioning notch; 232. Second slider; 233. Positioning pin; 241. Bracket; 242. Clamping plate; 243. Elastic element;

[0034] 2111, First slide groove; 2112, Second slide groove; 2321, Positioning hole. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can be fixed connections, integral connections, or detachable connections; they can be mechanical connections or electrical connections, or internal connections between two components; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0038] This application provides a testing fixture for refrigerator hinges, which can detect whether the form and position tolerances of the refrigerator's central hinge meet the standards. First, a brief description of the refrigerator's central hinge is given. For an example, please refer to... Figure 1 , Figure 1 This is a schematic diagram of a refrigerator hinge. The hinge 100 typically includes a first hinge plate 111 and a second hinge plate 112 connected perpendicularly to each other. The first hinge plate 111 has a fixing hole 120, allowing a fastener to fix the hinge 100 to the refrigerator body through the fixing hole 120. The second hinge plate 112 has a hinge shaft 130 fixedly connected to it, which is adapted to engage with a pivot hole on the refrigerator door to achieve a rotatable connection between the refrigerator body and the door. There can be one hinge shaft 130 to form a single-axis hinge, or two to form a double-axis hinge. The second hinge plate 112 also has a stop portion 140, which may include an opening stop portion and / or a closing stop portion. During the opening and closing of the refrigerator door, the stop portion 140 engages with a corresponding limiting portion on the door body to limit the range of the door's opening and closing angle. Therefore, the spacing between the two fixing holes 120, the perpendicularity between the two hinge plates, and the shape and position of the hinge shaft 130 and the stop part 140 are all important inspection items.

[0039] The refrigerator hinge testing fixture provided in this application will be described below with reference to the accompanying drawings. For an example, please refer to... Figures 2-4 , Figure 2 This is a schematic diagram of a refrigerator hinge inspection fixture used to inspect hinges, as provided in an embodiment of this application. Figure 3 This is a schematic diagram of the refrigerator hinge testing fixture provided in an embodiment of this application. Figure 4 for Figure 3 The exploded view of the refrigerator hinge testing fixture shown is shown. The refrigerator hinge testing fixture 200 includes a base 210, a first sliding assembly 220, and a second sliding assembly 230.

[0040] The base 210 includes a first detection wall 211, on which a plurality of detection pins 212 are connected for corresponding to the hinge fixing holes; the first sliding assembly 220 is slidably connected to the base 210 and includes a second detection wall 221, which is perpendicular to the first detection wall 211 and has a detection hole 222 for corresponding to the hinge axis; the second sliding assembly 230 is slidably connected to the base 210 and has a positioning recess 231 for conformally matching the hinge stop.

[0041] The base 210 can be made of metal, plastic, or other materials with a certain degree of hardness. It should be noted that the spacing between the detection pins 212 is set to a standard spacing. In the actual hinge testing process, the detection pins 212 are first inserted into the corresponding hinge fixing holes until the first hinge plate 111 is in contact with the first detection wall 211; then, the first sliding assembly 220 is slid to allow the hinge shaft to pass through the corresponding detection hole 222 until the second hinge plate 112 is in contact with the second detection wall 221; finally, the second sliding assembly 230 is slid until the hinge stop extends into the positioning recess 231. This completes the hinge testing operation.

[0042] During the above operations, the smoothness of each operation is observed to confirm whether the hinge under test is qualified. Specifically, first, observe whether each test pin 212 can be smoothly inserted into the corresponding hinge fixing hole; if so, the fixing hole spacing of the hinge under test is considered qualified; otherwise, the fixing hole spacing of the hinge under test is considered unqualified. Next, observe whether the hinge shaft can be smoothly inserted into the test hole 222; if so, the form and position of the hinge shaft are considered qualified; otherwise, the form and position of the hinge shaft are considered unqualified. After the first hinge plate 111 is attached to the first detection wall 211, since the second detection wall 221 is perpendicular to the first detection wall 211, the gap between the second hinge plate 112 and the second detection wall 221 can be observed. If the second hinge plate 112 and the second detection wall 221 can also be attached, the perpendicularity between the first hinge plate 111 and the second hinge plate 112 is considered acceptable; otherwise, the perpendicularity between the first hinge plate 111 and the second hinge plate 112 is considered unacceptable. Finally, it is observed whether the hinge stop and the positioning recess 231 can be properly matched. If they can, the shape and position of the hinge stop are considered acceptable; otherwise, the shape and position of the hinge stop are considered unacceptable.

[0043] The refrigerator hinge testing fixture 200 provided in this application embodiment can quickly detect whether the spacing of the hinge fixing holes, the perpendicularity between the two hinge plates, and the shape and position of the hinge shaft and the stop are qualified. Moreover, the fixture has a simple structure and is easy to operate, which can greatly improve the testing efficiency and increase the pass rate of the hinges that are finally put into use.

[0044] In some embodiments, please refer to Figure 5 , Figure 5 This is a schematic diagram of the base provided in an embodiment of this application. The first detection wall 211 has a plurality of connection holes 213, and each detection pin 212 is used to detachably connect with one of the plurality of connection holes 213 to adapt to a corresponding model of hinge.

[0045] It should be noted that the first detection wall 211 has multiple connecting holes 213. Any two connecting holes 213 can be combined, and at least two of the combinations have different hole spacings. It is understood that refrigerator hinges come in various models, and for different models, the hinge plate size differs, as does the hole spacing of the fixing holes. Since the detection pins 212 are used for detachable connection with the connecting holes 213, in practical applications, for the hinge model to be tested, multiple corresponding connecting holes 213 can be determined on the first detection wall 211 according to the standard hole spacing of its fixing holes. By connecting the multiple detection pins 212 one-to-one with the corresponding multiple connecting holes 213, the base 210 has the function of detecting the hole spacing of the fixing holes for the hinge model to be tested. Thus, the refrigerator hinge testing fixture 200 of this application can test various models of hinges, has a simple structure, is easy to operate, and has a wide range of applications.

[0046] Optionally, the connecting hole 213 is a threaded hole, and the detection pin 212 has a threaded end adapted to be screwed into the connecting hole 213, so that the detection pin 212 can be detachably connected to multiple connecting holes 213. The detection pin 212 and the connecting hole 213 can also be detachably linked by a snap-fit ​​structure or other detachable structure.

[0047] In some embodiments, please refer to Figure 6 , Figure 6This is a schematic diagram of the structure of the first sliding component provided in an embodiment of this application. The second detection wall 221 has multiple detection holes 222, each used to adapt to a corresponding hinge model. It is understood that refrigerator hinges come in various models, and the form and position standards of the hinge axis differ for different models. Each of the multiple detection holes 222 on the second detection wall 221 corresponds to a different hinge model, enabling the detection of different hinge models. Thus, the refrigerator hinge detection fixture 200 of this application can detect various hinge models, has a simple structure, is easy to operate, and has a wide range of applications.

[0048] The hinge of a refrigerator can be a multi-axis hinge or a single-axis hinge, depending on the actual needs of that refrigerator model. For a single-axis hinge, only the shape and position of one hinge axis need to be detected, while for a multi-axis hinge, the shape and position of multiple hinge axes need to be detected. For example, the first sliding assembly 220 includes two first sliders 223 slidably connected to the base 210. Each first slider 223 includes a second detection wall 221. The two second detection walls 221 are disposed opposite to each other on both sides of the hinge, and are respectively used to detect the hinge axes on opposite sides of the refrigerator hinge through the detection holes 222.

[0049] In actual hinge testing, the first slider 223 can be slid to allow the hinge shaft to pass through the corresponding detection hole 222, and the second detection wall 221 to fit against the second hinge plate 112, thereby detecting the perpendicularity of the hinge plate and the shape and position of the hinge shaft. The first sliding assembly 220 of this application can test both single-axis and multi-axis hinges. For a single-axis hinge, the hinge shaft on one side can be tested simply by sliding the first slider 223 on the corresponding side; for a multi-axis hinge, the hinge shafts on both sides need to be tested separately by sliding the first sliders 223 on both sides.

[0050] Optionally, the first detection wall 211 is provided with a first sliding groove 2111, and the first slider 223 further includes a boss 224, which is slidably disposed in the first sliding groove 2111 so that the first slider 223 is slidably connected to the base 210. The first sliding groove 2111 is a dovetail groove, and the cross-section of the boss 224 in the width direction of the first sliding groove 2111 is a trapezoid that conforms to the groove shape. To facilitate the installation of the first slider 223, the first sliding groove 2111 can also be configured as a through groove.

[0051] In some embodiments, please refer to Figure 7 , Figure 7This is a schematic diagram of the structure of the second sliding component provided in an embodiment of this application. The second sliding component 230 includes a second slider 232 and a plurality of positioning pins 233. The second slider 232 is slidably connected to the base 210; the plurality of positioning pins 233 are connected to the second slider 232 and form a positioning recess 231.

[0052] The first detection wall 211 may also be provided with a second sliding groove 2112, and the second slider 232 includes a sliding connecting part that is slidably disposed in the first sliding groove 2111, so that the second slider 232 is slidably connected to the base 210. The specific structure of the second sliding groove 2112 and the sliding connecting part can be referred to the first sliding groove 2111 and the first slider 223 described above, and will not be repeated here.

[0053] Optionally, the second slider 232 has multiple positioning holes 2321, and each positioning pin 233 is detachably connected to one of the multiple positioning holes 2321 to form a positioning recess 231 adapted to the corresponding hinge model. It is understood that refrigerator hinges come in various models, and the shape and size of the stop portion differ for different hinge models. Since the positioning pin 233 is detachably connected to the positioning hole 2321, in practical applications, for the hinge model to be tested, multiple corresponding positioning holes 2321 can be determined on the second slider 232 according to the shape and position of its stop portion. By engaging the multiple positioning pins 233 with the corresponding multiple positioning holes 2321 one by one, a positioning recess 231 with the corresponding shape and position is formed, so that the second sliding assembly 230 has the function of detecting the shape and position of the stop portion of the hinge model to be tested. Thus, the refrigerator hinge testing fixture 200 of this application can test various hinge models, has a simple structure, is easy to operate, and has a wide range of applications.

[0054] Optionally, the locating pin 233 and the locating hole 2321 can be connected by screws, snap-fit ​​structures, or other means. Preferably, the second slider 232 is fixedly connected to a first slider 223. The second slider 232 also includes a sidewall facing the hinge to be tested, which is used to mount the locating pin 233. This sidewall is flush with, for example, the second detection wall 221 of the connected first slider 223. This further simplifies the testing operation of the refrigerator hinge testing fixture 200.

[0055] In some embodiments, such as Figures 2-4 As shown, the refrigerator hinge testing fixture 200 also includes a clamping assembly 240. The clamping assembly 240 is disposed on the first testing wall 211 and is used to press the refrigerator hinge tightly so that the refrigerator hinge is in contact with the first testing wall 211. In this way, on the one hand, it can prevent the hinge from moving during the testing process, which would affect the accuracy of the test; on the other hand, it can also ensure that the first hinge plate 111 is in contact with the first testing wall 211, thereby ensuring the accuracy of the hinge plate perpendicularity test.

[0056] Optionally, the clamping assembly 240 may include a bracket 241, a clamping plate 242, and an elastic element 243. The bracket 241 is fixed to the first detection wall 211, and the clamping plate 242 is rotatably connected to the bracket 241. One end of the clamping plate 242 is connected to the first detection wall 211 via the elastic element 243, and the other end is used to rotatably press against the refrigerator hinge or stop pressing against the refrigerator hinge. An anti-slip structure, such as a concave-convex surface, may be provided on the surface of the clamping plate 242 suitable for contacting the refrigerator hinge.

[0057] The refrigerator hinge testing fixture 200 provided in this application embodiment can quickly detect whether the spacing of the hinge fixing holes, the perpendicularity between the two hinge plates, and the shape and position of the hinge shaft and the stop are qualified. Moreover, the fixture has a simple structure and is easy to operate, which can greatly improve the testing efficiency and increase the pass rate of the hinges that are finally put into use.

[0058] The refrigerator hinge detection fixture provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A refrigerator hinge detection tool, characterized by, The utility model relates to a refrigerator hinge detection device, including: a base including a first detection wall, a plurality of detection pins are connected to the first detection wall for corresponding arrangement with hinge fixing holes; a first sliding assembly in sliding connection with the base, including a second detection wall, the second detection wall is perpendicular to the first detection wall, and a detection hole is formed for corresponding arrangement with a hinge shaft; a second sliding assembly in sliding connection with the base, forming a positioning recess for conformal matching with a hinge stop.

2. The refrigerator hinge detection tool of claim 1, wherein, A plurality of connecting holes are formed in the first detection wall, and each detection pin is detachably connected with one of the connecting holes to adapt to a corresponding type of hinge. 3.The refrigerator hinge detection tool according to claim 2, characterized in that, The connecting hole is a threaded hole, and the detection pin has a threaded end adapted to be screwed with the connecting hole to detachably connect the detection pin with the connecting hole.

4. The refrigerator hinge detection tool of any one of claims 1-3, wherein, A plurality of detection holes are formed in the second detection wall, and each detection hole is adapted to a corresponding type of hinge. 5.The refrigerator hinge detection tool according to claim 4, wherein, The first sliding assembly includes two first sliders in sliding connection with the base, and each first slider includes the second detection wall, and the two second detection walls are oppositely arranged on both sides of the hinge to detect the hinge shafts on the opposite sides of the refrigerator hinge through the detection holes. 6.The refrigerator hinge detection tool according to claim 5, characterized in that, A first sliding groove is formed in the first detection wall, and the first slider further includes a boss portion slidably arranged in the first sliding groove to slidably connect the first slider with the base. 7.The refrigerator hinge detection tool according to claim 5, wherein, The second sliding assembly includes: a second slider in sliding connection with the base; a plurality of positioning pins connected with the second slider and surrounding the positioning recess. 8.The refrigerator hinge detection tool according to claim 7, characterized in that, A plurality of positioning holes are formed in the second slider, and each positioning pin is detachably connected with one of the positioning holes to form a positioning recess adapted to a corresponding type of hinge. 9.The refrigerator hinge detection tool according to claim 7, characterized in that, The second slider is fixedly connected with the first slider.

10. The refrigerator hinge detection tool of any one of claims 1-3, wherein, Further including a clamping assembly arranged on the first detection wall for pressing the refrigerator hinge to make the refrigerator hinge fit the first detection wall.