Anti-loosening structure and dish washing machine

Abstract

The utility model relates to an anti-loosening structure and a dish washing machine, and belongs to the field of household appliances. The anti-loosening structure comprises an anti-loosening base, a locking piece, a locking piece and a locking piece, the anti-loosening base is provided with an adaptive notch, and the side wall of the adaptive notch is provided with a limiting groove communicated with the adaptive notch; the anti-loose convex block is arranged on the anti-loose base, and the anti-loose convex block and the limiting groove are located on the same side of the adaptive notch; the tension spring assemblies and the anti-loosening base are clamped between the tension spring assemblies, the tension spring assemblies are clamped at the position of the adaptive notch, parts of the tension spring assemblies are limited at the position of the anti-loosening protruding block, and parts of the tension spring assemblies are limited at the position of the limiting groove. According to the anti-loosening structure, an anti-loosening base is provided with a limiting groove, and the tail of a tension spring assembly is limited in the limiting groove, so that the tension spring assembly cannot obtain enough rotating power and cannot rotate, and the purpose of limiting the anti-loosening base to be disengaged from the spiral direction of the tension spring assembly is achieved.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to an anti-loosening structure and a dishwasher. Background Art

[0002] In the prior art, a specific fixing structure is designed to achieve a secure connection between the stator and the tension spring and prevent the stator from dislodging from the spring. However, in actual applications, given that the tension spring is constantly in a cycle of stretching and recovering, while a limiting protrusion is provided to restrict the spring's dislodgment, it only restricts dislodgment in a single direction. While the friction between the stator and the spring can provide some limiting effect, this lacks stability, resulting in a high probability of the stator dislodging during actual use. Utility Model Content

[0003] Based on this, it is necessary to provide an anti-loosening structure and a dishwasher to address the problem of separation between the fixing plate and the tension spring.

[0004] A loose-proof structure includes: an loose-proof base, the loose-proof base is provided with an adapting notch, and the side wall of the adapting notch is provided with a limiting groove connected to the adapting notch; an loose-proof protrusion, the loose-proof protrusion is arranged on the loose-proof base, and the loose-proof protrusion and the limiting groove are located on the same side of the adapting notch; a tension spring assembly, the loose-proof base is clamped between the tension spring assemblies, the tension spring assembly is clamped at the adapting notch, part of the tension spring assembly is limited at the loose-proof protrusion, and part of the tension spring assembly is limited at the limiting groove.

[0005] The above discloses an anti-loosening structure, which arranges an anti-loosening protrusion on the anti-loosening base and arranges a tension spring assembly at the adaptation notch of the anti-loosening base, and part of the tension spring assembly is against the anti-loosening protrusion. First, the adaptation notch provides the first line of defense for the tension spring assembly to prevent loosening, and limits the relative displacement of the tension spring assembly through its own shape and position. In addition, the arrangement of the anti-loosening protrusion effectively limits the horizontal displacement of the tension spring assembly relative to the anti-loosening base. Since the anti-loosening base is provided with a limiting groove, part of the tension spring assembly is limited in the limiting groove, and the shape of the limiting groove is highly consistent with the shape of the limited part of the tension spring assembly. When the tension spring assembly tries to rotate, the tangential force it generates will be decomposed into multiple component forces by the side walls of the limiting groove. These component forces offset each other, so that the tension spring assembly cannot obtain sufficient rotational power, making it impossible to achieve rotation. At the same time, this ensures that the anti-loosening base will not disengage from the rotation direction of the tension spring assembly. At the same time, the contact between the tension spring assembly and the limiting groove will also generate friction, which will also hinder the rotation trend of the tension spring assembly, further limiting the rotation of the tension spring assembly relative to the anti-loosening base, thereby achieving the purpose of limiting the anti-loosening base from disengaging from the spiral direction of the tension spring assembly, laying a solid foundation for the stability and reliability of the entire anti-loosening structure.

[0006] In one embodiment, the tension spring assembly includes a telescopic portion, a first extension portion and a second extension portion, and the anti-loosening base is clamped between the telescopic portions, the first extension portion is connected to the end portion of the telescopic portion, the first extension portion extends toward the inner side of the telescopic portion, the second extension portion is connected to the end portion of the first extension portion and the second extension portion extends toward the anti-loosening base, and the second extension portion extends to the limiting groove. By clamping the anti-loosening base between the telescopic portions, on the one hand, an additional support structure is provided for the tension spring assembly. During operation, the telescopic portion of the tension spring is easily affected by external factors such as vibration and impact, resulting in irregular swing or deformation. The clamping of the anti-loosening base can effectively limit the excessive swing of the telescopic portion, so that the tension spring assembly maintains a relatively stable shape during the telescopic process, ensuring that the tension spring assembly can be telescoped in the expected direction and manner, thereby enhancing the stability of the entire tension spring assembly. The first extension is connected to the rear end of the telescopic portion and extends inward from the telescopic portion, providing a directional orientation for the second extension located at the rear end of the first extension. This allows the second extension to precisely mate with the retaining groove, preventing poor or incompatible mating due to angular deviation. This effectively ensures that the retaining groove effectively restricts rotation of the tension spring assembly. When the tension spring assembly is subjected to external forces that could cause rotation, the force exerted on the telescopic portion is systematically transmitted along the first extension to the second extension. The directional orientation provided by the first extension ensures that force transmission is rationally distributed based on the mating structure of the tension spring assembly and the retaining groove. The retaining groove, through its structural design, exerts a reaction force on the second extension during force transmission from the tension spring assembly. These reaction forces create a combined torque in the opposite direction of the rotational force when the tension spring assembly attempts to rotate. The force transmission path defined by the first extension ensures that this combined torque effectively acts on the entire tension spring assembly, preventing rotation and thereby preventing the anti-loosening base from disengaging from the helical direction of the tension spring assembly.

[0007] In one embodiment, the telescopic portion extends helically, with the helical axis of the telescopic portion parallel to the extension direction of the second extension portion. By establishing a parallel constraint relationship between the helical axis of the telescopic portion and the extension direction of the second extension portion, when the tension spring assembly is subjected to an external force causing rotation, this parallel constraint relationship allows the telescopic portion and the second extension portion to form a coordinated force-bearing structure within the same plane. The parallel direction of the helical axis of the telescopic portion and the extension direction of the second extension portion ensures that the rotational torque generated by the external force on these two portions is in the same direction, thereby more effectively superimposing the forces resisting rotation, significantly enhancing the overall resistance of the tension spring assembly to rotation, and making it more difficult for rotation to occur.

[0008] In one embodiment, the spiral shaft of the telescopic portion is located between the anti-loosening protrusion and the second extension. By positioning the spiral shaft between the anti-loosening protrusion and the second extension, the presence of the spiral shaft provides a clearly defined restricted path for the rotation of the tension spring assembly. Because the spiral shaft is located between the anti-loosening protrusion and the second extension, its shape and orientation dictate that the tension spring assembly must rotate along the direction of the spiral shaft and cannot rotate in other directions at will. This significantly limits its rotational freedom and effectively prevents the tension spring assembly from rotating in unintended directions. This effectively utilizes the limiting groove to restrict the rotation of the tension spring assembly.

[0009] In one embodiment, the telescopic portion, the first extension portion, and the second extension portion are integrally formed. By integrally forming the telescopic portion, the first extension portion, and the second extension portion, on the one hand, the integral forming eliminates connection gaps or weak links between the parts, thereby avoiding structural instability caused by loose connection parts, wear, and other problems. When subjected to external force, the force can be more evenly distributed across the entire structure, reducing stress concentration, thereby improving the overall structural strength and stability of the tension spring assembly, making it more able to withstand greater tension and pressure, and extending its service life. On the other hand, the integral forming facilitates the stable transmission of force. When the tension spring assembly is subjected to external force and may have a tendency to rotate, the force borne by the telescopic portion is orderly transmitted to the second extension portion along the first extension portion. Since the second extension portion is located in the limiting groove, the second extension portion is subjected to a reaction force exerted by the limiting groove, and the reaction force is then transmitted along the force path, effectively acting on the entire tension spring assembly and preventing it from rotating.

[0010] In one embodiment, a portion of the telescopic portion projecting toward the anti-loosening base is located on the anti-loosening base, while another portion is located in the adapting notch. The projected area on the anti-loosening base is larger than the projected area at the adapting notch. By positioning the main portion of the telescopic portion on one side of the anti-loosening base and the remaining portion in the adapting notch, the edge of the adapting notch directly blocks the remaining portion of the telescopic portion located therein. When the tension spring assembly is subjected to a horizontal external force, the portion of the telescopic portion located in the adapting notch contacts the edge of the notch, limiting its range of movement and thereby preventing horizontal displacement of the tension spring assembly, preventing it from easily moving left or right on the horizontal plane. Furthermore, the adapting notch is designed based on the shape and size of the telescopic portion, ensuring a high degree of precision in its fit with the remaining portion of the telescopic portion. This precise fit limits the horizontal displacement of the telescopic portion to a very small range, ensuring that the tension spring assembly remains relatively fixed in the horizontal position, preventing significant wobbling or drifting, thereby improving the stability and reliability of the tension spring assembly during operation.

[0011] In one embodiment, the anti-loosening base and the anti-loosening protrusion are integrally formed. By integrally forming the anti-loosening base and the anti-loosening protrusion, the connection gap and weak link between the anti-loosening base and the anti-loosening protrusion are avoided, so that the two form a complete and stable structure, and the overall strength is significantly improved. It can better withstand various external forces, reduce problems such as loosening and deformation caused by loose connections, and thus ensure the stability and reliability of the structure during long-term use. At the same time, the integrally formed anti-loosening base and anti-loosening protrusion provide an overall constraint environment for the tension spring assembly. When the tension spring assembly is installed in such a structure, its freedom of rotation and displacement is greatly restricted. The position and shape of the anti-loosening protrusion cooperate with the anti-loosening base, making it difficult for the tension spring assembly to rotate and displace around the axis, effectively preventing the tension spring assembly from rotating and displacing unnecessary due to external forces or its own elastic force.

[0012] In one embodiment, the invention further includes a mounting hole, which is provided on the anti-loosening base and located between the anti-loosening protrusion and the limiting groove, and is used to connect to an external structure. By providing the mounting hole on the anti-loosening base and located between the anti-loosening protrusion and the limiting groove, the mounting hole provides a direct connection between the anti-loosening base and the external structure. The anti-loosening base can be securely mounted on the dishwasher body via bolts, nuts, and other fasteners, ensuring that it will not shift or loosen during operation, thereby ensuring that the anti-loosening device can function properly and maintain the stability of the overall structure.

[0013] In one embodiment, the anti-loosening base is rectangular, and the adapting notch is located on a side wall of one side of the anti-loosening base, with the side wall of the adapting notch spaced apart from the adjacent side wall of the anti-loosening base. By arranging the adapting notch on a side wall of one side of the anti-loosening base, the side wall space of the anti-loosening base can be fully utilized, avoiding the need to provide additional structures or openings in other key parts or main working surfaces of the anti-loosening base. This makes the overall structure of the anti-loosening base more compact and reasonable, improves space utilization, and facilitates the miniaturization and lightweight design of the entire device. This space optimization advantage is particularly important in some application scenarios with high space requirements.

[0014] In one embodiment, the adapting notch includes a notch, a first mating groove, and a second mating groove. The notch is located on a sidewall of the anti-loosening base. The limiting groove communicates with the notch. The first and second mating grooves are both connected to the notch. The first mating groove, the limiting groove, and the second mating groove are sequentially spaced apart. The tension spring assembly is inserted through the notch and is adapted to be installed in the first and second mating grooves. By connecting the first and second mating grooves to the notch, the notch provides a direct access point for installing the tension spring assembly. Since both the first and second mating grooves are connected to the notch, the tension spring assembly can be more easily inserted into each slot through the notch. This interconnected structure avoids complex installation steps. The installer no longer needs to precisely align the tension spring assembly with each individual slot for installation. Instead, the notch provides a unified channel to guide the tension spring assembly to the corresponding position, greatly improving installation efficiency. Secondly, the first and second mating grooves provide a precise installation position for the tension spring assembly, ensuring accurate positioning on the anti-loosening base. The connection of the gap further limits the horizontal position of the tension spring assembly, preventing it from lateral displacement, and ensuring that the tension spring assembly always maintains a stable position during operation, thereby providing protection for the normal operation of the entire device.

[0015] In one embodiment, the device further comprises an adapting groove, which is arranged on the end face of the anti-loosening base. The adapting groove is connected to the adapting notch, and the spiral direction of the tension spring assembly is the same as the extension direction of the adapting groove. The tension spring assembly is adapted and installed in the adapting groove. By arranging the adapting grooves on the two oppositely arranged end faces of the anti-loosening base, the tension spring assembly is adapted and installed in the adapting grooves. On the one hand, the adapting grooves can accurately limit the tension spring assembly and prevent the tension spring assembly from unnecessary displacement on the end face of the anti-loosening base. Since the tension spring assembly is installed in the two oppositely arranged adapting grooves, its movement in the horizontal and vertical directions is effectively restricted, thereby ensuring that the tension spring assembly always maintains an accurate position during operation, providing a basic guarantee for the stable operation of the entire anti-loosening device. Furthermore, the spiral direction of the tension spring assembly is the same as the extension direction of the adapting groove, which allows the torsional tendency of the tension spring assembly to be suppressed by the adapting groove when it is subjected to external force. When the tension spring assembly attempts to rotate, the side wall of the adapting groove will exert reverse resistance on the tension spring assembly to prevent it from rotating, thereby ensuring that the elastic force direction of the tension spring assembly remains consistent and stably plays an anti-loosening role.

[0016] In one embodiment, the adapting groove includes a first adapting groove and a second adapting groove, the first adapting groove is provided on one end face of the anti-loosening base, and the second adapting groove is provided on the other end face of the anti-loosening base, the first adapting groove and the second adapting groove are both connected to the adapting notch, and the tension spring assembly is adapted and installed with the first adapting groove and the second adapting groove. By providing the first adapting groove and the second adapting groove on the two end faces of the anti-loosening base and both being connected to the adapting notch, the cooperation between the tension spring assembly and the anti-loosening base is fixed at multiple positions. The tension spring assembly can be initially positioned at the adapting notch and then respectively embedded in the adapting grooves of the two end faces. This multi-point fixing method can effectively prevent the displacement and loosening of the anti-loosening base during the operation of the dishwasher. The simultaneously connected design is conducive to the transmission and dispersion of force. The external force exerted on the tension spring assembly can be evenly dispersed to the entire anti-loosening base through the adapting notch, avoiding stress concentration, reducing the risk of component damage, and extending the service life of the anti-loosening base. At the same time, the elastic force generated by the tension spring assembly during the expansion and contraction process can also accurately act on the relevant anti-loosening components with the help of the adaptation groove, ensuring the reliability and durability of the anti-loosening effect.

[0017] The second aspect of the present application discloses a dishwasher, which includes: the above-mentioned anti-loosening structure; a dishwasher housing, on which the anti-loosening structure is arranged; and a door body, which is connected to the dishwasher housing via the anti-loosening structure.

[0018] The second aspect disclosed above discloses a dishwasher that is connected to the dishwasher housing via mounting holes in an anti-loosening structure. The mounting holes provide precise positioning points for the connection between the anti-loosening structure and the dishwasher housing. The mounting holes ensure that the anti-loosening structure is installed on the dishwasher housing according to design requirements. When the user opens the dishwasher door, a tensile force acts on the door. This tensile force is transmitted to the housing through the anti-loosening structure and the mounting holes, allowing the door to open smoothly without shaking or abnormal displacement due to a loose connection. A good door seal is essential for the normal operation of the dishwasher. The anti-loosening structure helps maintain a tight fit between the door and the housing, thereby ensuring a good seal. When the door is securely connected to the anti-loosening structure provided on the housing, it ensures that the sealing material, such as the sealing strip, between the door and the housing is correctly positioned and performs its sealing function, preventing moisture, heat, etc. from escaping through the gap between the door and the housing, thereby improving the dishwasher's energy efficiency and washing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first stereogram of the anti-loosening structure;

[0020] Figure 2 A second perspective view of the anti-loosening structure;

[0021] Figure 3 for Figure 2 A local enlarged view of area A;

[0022] Figure 4 It is a third stereogram of the anti-loosening structure;

[0023] Figure 5 A fourth perspective view of the anti-loosening structure;

[0024] Figure 6 A first stereoscopic view of the anti-loosening base and the anti-loosening protrusion;

[0025] Figure 7 A second stereoscopic view of the anti-loosening base and the anti-loosening protrusion;

[0026] Figure 8 This is the third stereoscopic view of the anti-loosening base and the anti-loosening protrusion.

[0027] The corresponding relationship between the reference numerals and component names is as follows:

[0028] 1 anti-loosening base, 101 adapting notch, 1011 notch, 1012 first matching groove, 1013 second matching groove, 102 limiting groove, 103 adapting groove, 1031 first adapting groove, 1032 second adapting groove, 104 mounting hole;

[0029] 2 anti-loosening protrusions;

[0030] 3 tension spring assembly, 31 telescopic portion, 32 first extension portion, 33 second extension portion. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0033] The anti-loosening structure and the dishwasher according to some embodiments of the present invention will be described below with reference to the accompanying drawings.

[0034] Example 1

[0035] like Figures 1 to 8As shown, this embodiment discloses an anti-loosening structure, including: an anti-loosening base 1, the anti-loosening base 1 is provided with an adapting notch 101, and the side wall of the adapting notch 101 is provided with a limiting groove 102 connected to the adapting notch 101; an anti-loosening protrusion 2, the anti-loosening protrusion 2 is arranged on the anti-loosening base 1, and the anti-loosening protrusion 2 and the limiting groove 102 are located on the same side of the adapting notch 101; a tension spring assembly 3, the anti-loosening base 1 is clamped between the tension spring assembly 3, the tension spring assembly 3 is clamped at the adapting notch 101, part of the tension spring assembly 3 is limited at the anti-loosening protrusion 2, and part of the tension spring assembly 3 is limited at the limiting groove 102.

[0036] The present application discloses an anti-loosening structure, which arranges an anti-loosening protrusion 2 on an anti-loosening base 1, and arranges a tension spring assembly 3 at an adaptation notch 101 of the anti-loosening base 1, and a portion of the tension spring assembly 3 is abutted against the anti-loosening protrusion 2. First, the adaptation notch 101 provides the first line of defense for the tension spring assembly 3 to prevent loosening, and limits the relative displacement of the tension spring assembly 3 by its own shape and position. In addition, the arrangement of the anti-loosening protrusion 2 effectively limits the horizontal displacement of the tension spring assembly 3 relative to the anti-loosening base 1. Since the anti-loosening base 1 is provided with a limiting groove 102, part of the tension spring assembly 3 is limited at the limiting groove 102, and the shape of the limiting groove 102 is highly consistent with the shape of the limited part of the tension spring assembly 3. When the tension spring assembly 3 attempts to rotate, the tangential force it generates will be decomposed into multiple component forces by the side walls of the limiting groove 102, and these component forces offset each other, so that the tension spring assembly 3 cannot obtain sufficient rotational power, making it impossible to achieve rotation. At the same time, this also ensures that the anti-loosening base 1 will not escape from the rotation direction of the tension spring assembly 3. At the same time, due to the contact between the tension spring assembly 3 and the limiting groove 102, friction will also be generated, which will also hinder the rotation trend of the tension spring assembly 3, further limiting the rotation of the tension spring assembly 3 relative to the anti-loosening base 1, thereby achieving the purpose of limiting the anti-loosening base 1 from escaping from the spiral direction of the tension spring assembly 3, laying a solid foundation for the stability and reliability of the entire anti-loosening structure.

[0037] like Figure 1 、 Figure 2 、 Figure 3 and Figure 6As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines: the tension spring assembly 3 includes a telescopic portion 31, a first extension portion 32, and a second extension portion 33. The anti-loosening base 1 is sandwiched between the telescopic portion 31. The first extension portion 32 is connected to the end of the telescopic portion 31 and extends inwardly of the telescopic portion 31. The second extension portion 33 is connected to the end of the first extension portion 32 and extends toward the anti-loosening base 1. The second extension portion 33 extends to the stop groove 102. The anti-loosening base 1 sandwiched between the telescopic portions 31 provides additional support for the tension spring assembly 3. During operation, the telescopic portion 31 of the tension spring is susceptible to external factors such as vibration and impact, causing irregular swing or deformation. The sandwiching of the anti-loosening base 1 effectively limits excessive swing of the telescopic portion 31, allowing the tension spring assembly 3 to maintain a relatively stable configuration during expansion and contraction, ensuring that the tension spring assembly 3 can expand and contract in the intended direction and manner, thereby enhancing the stability of the entire tension spring assembly 3. The first extension 32 is connected to the rear end of the telescopic portion 31 and extends inward from the telescopic portion 31, providing a directional arrangement for the second extension 33 located at the rear end of the first extension 32. This allows the second extension 33 to precisely mate with the retaining groove 102, preventing poor or incompatible mating due to angular deviation. This effectively ensures that the retaining groove 102 effectively limits the rotation of the tension spring assembly 3. When the tension spring assembly 3 is subjected to external forces and may rotate, the force exerted on the telescopic portion 31 is systematically transmitted to the second extension 33 along the first extension 32. The directional arrangement provided by the first extension 32 allows for a reasonable distribution of force during transmission based on the mating structure between the tension spring assembly 3 and the retaining groove 102. Due to its structural design, the retaining groove 102 exerts a reaction force on the second extension 33 during force transmission from the tension spring assembly 3. These reaction forces form a combined torque in the opposite direction of the rotational force when the tension spring assembly 3 attempts to rotate. The force transmission path determined by the first extension portion 32 ensures that the resultant torque can effectively act on the entire tension spring assembly 3 to prevent it from rotating, thereby achieving the purpose of limiting the anti-loosening base 1 from separating from the spiral direction of the tension spring assembly 3.

[0038] like Figure 3 、 Figure 4 and Figure 5As shown, in addition to the features of the above-described embodiment, this embodiment further provides that: the telescopic portion 31 extends helically, with the helical axis of the telescopic portion 31 parallel to the extension direction of the second extension portion 33. By establishing a parallel constraint relationship between the helical axis of the telescopic portion 31 and the extension direction of the second extension portion 33, when the tension spring assembly 3 is subjected to an external force causing rotation, this parallel constraint relationship causes the telescopic portion 31 and the second extension portion 33 to form a coordinated force-bearing structure within the same plane. The helical axis of the telescopic portion 31 is parallel to the extension direction of the second extension portion 33, ensuring that the rotational torque generated by the external force at these two locations is in the same direction. This allows for more effective superposition of the forces resisting rotation, significantly enhancing the overall anti-rotation capability of the tension spring assembly 3, making it more difficult for rotation to occur.

[0039] like Figure 4 and Figure 5 As shown, in addition to the features of the above-described embodiment, this embodiment further defines that the spiral shaft of the telescopic portion 31 is located between the anti-loosening protrusion 2 and the second extension portion 33. By positioning the spiral shaft of the telescopic portion 31 between the anti-loosening protrusion 2 and the second extension portion 33, the presence of the spiral shaft provides a clear restricted path for the rotation of the tension spring assembly 3. Because the spiral shaft is located between the anti-loosening protrusion 2 and the second extension portion 33, its shape and directional characteristics dictate that the tension spring assembly 3 must rotate along the direction of the spiral shaft and cannot rotate freely in other directions, significantly limiting its rotational freedom and effectively preventing the tension spring assembly 3 from rotating in unintended directions. Thus, the limiting groove 102 is effectively utilized to limit the rotation of the tension spring assembly 3.

[0040] like Figure 1 、 Figure 2 and Figure 3 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further provides that the telescopic portion 31, the first extension portion 32, and the second extension portion 33 are integrally formed. By integrally forming the telescopic portion 31, the first extension portion 32, and the second extension portion 33, on the one hand, the integral forming eliminates gaps or weak links between the components, thus avoiding structural instability caused by loose connections and wear. When subjected to external forces, the force is more evenly distributed across the entire structure, reducing stress concentration, thereby improving the overall structural strength and stability of the tension spring assembly, enabling it to better withstand greater tension and compression, and extending its service life. Furthermore, the integral forming facilitates stable force transmission. When the tension spring assembly 3 is subjected to external forces and may tend to rotate, the force exerted on the telescopic portion 31 is orderly transmitted along the first extension portion 32 to the second extension portion 33. Because the second extension portion 33 is located in the retaining groove 102, the retaining groove exerts a reaction force on the second extension portion 33. This reaction force is then transmitted along the force path, effectively acting on the entire tension spring assembly 3 and preventing rotation.

[0041] like Figures 1 to 5 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the projection of the telescopic portion 31 toward the anti-loosening base 1 is located on the anti-loosening base 1, and the other portion is located at the adapting notch 101. The projected area on the anti-loosening base 1 is larger than the projected area at the adapting notch 101. By positioning the main portion of the telescopic portion 31 on one side of the anti-loosening base 1 and the remaining portion at the adapting notch 101, the edge of the adapting notch 101 directly blocks the remaining portion of the telescopic portion 31 located therein. When the tension spring assembly 3 is subjected to a horizontal external force, the portion of the telescopic portion 31 located at the adapting notch 101 will contact the edge of the notch. The edge of the notch limits the range of movement of this portion, thereby preventing the tension spring assembly 3 from displacing horizontally and preventing it from easily moving left or right on the horizontal plane. At the same time, the adapting notch 101 is designed based on the shape and size of the telescopic portion 31, and its fit with the remaining portion of the telescopic portion 31 is highly precise. This precise fit can limit the horizontal displacement of the telescopic portion 31 to a very small range, ensuring that the position of the tension spring assembly 3 in the horizontal direction is relatively fixed without significant shaking or offset, thereby improving the stability and reliability of the tension spring assembly 3 during operation.

[0042] like Figures 6 to 8 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that the anti-loosening base 1 and the anti-loosening protrusion 2 are integrally formed. By integrally forming the anti-loosening base 1 and the anti-loosening protrusion 2, the connection gaps and weak links between the anti-loosening base 1 and the anti-loosening protrusion 2 are avoided, forming a complete and stable structure. The overall strength is significantly improved, and the structure can better withstand various external forces, reducing problems such as loosening and deformation caused by loose connections, thereby ensuring the stability and reliability of the structure during long-term use. At the same time, the integrally formed anti-loosening base 1 and anti-loosening protrusion 2 provide a holistic constraint environment for the tension spring assembly 3. When installed in such a structure, the tension spring assembly 3's freedom of rotation and displacement is greatly restricted. The position and shape of the anti-loosening protrusion 2 cooperate with the anti-loosening base 1, making it difficult for the tension spring assembly 3 to rotate and displace around its axis, effectively preventing the tension spring assembly 3 from rotating or displacing due to external forces or its own elastic force.

[0043] like Figure 5 and Figure 6As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines: it also includes a mounting hole 104, which is provided on the anti-loosening base 1 and located between the anti-loosening protrusion 2 and the limiting groove 102. The mounting hole 104 is used to connect to an external structure. By providing the mounting hole 104 on the anti-loosening base 1 and between the anti-loosening protrusion 2 and the limiting groove 102, the mounting hole 104 provides a direct connection between the anti-loosening base 1 and the external structure. Through bolts, nuts and other connecting parts, the anti-loosening base 1 can be firmly installed on the dishwasher cabinet to ensure that it will not move or loosen during operation, thereby ensuring that the anti-loosening device can function properly and maintain the stability of the overall structure.

[0044] like Figure 6 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the anti-loosening base 1 is rectangular, the adapting notch 101 is located at the side wall of one side of the anti-loosening base 1, and the side wall of the adapting notch 101 is spaced apart from the side wall of the adjacent anti-loosening base 1. By arranging the adapting notch 101 at the side wall of one side of the anti-loosening base 1, the side wall space of the anti-loosening base 1 can be fully utilized, avoiding the need to set additional structures or openings on other key parts or main working surfaces of the anti-loosening base 1, making the overall structure of the anti-loosening base 1 more compact and reasonable, improving space utilization, and facilitating the miniaturization and lightweight design of the entire device. In some application scenarios with high space requirements, the advantage of this space optimization is particularly important.

[0045] like Figure 6 and Figure 7As shown, in addition to the features of the above embodiment, this embodiment further defines: the adapting notch 101 includes a notch 1011, a first matching groove 1012, and a second matching groove 1013. The notch 1011 is located on a side wall of the anti-loosening base 1. The limiting groove 102 is connected to the notch 1011. The first matching groove 1012 and the second matching groove 1013 are both connected to the notch 1011. The first matching groove 1012, the limiting groove 102, and the second matching groove 1013 are sequentially spaced apart. The tension spring assembly 3 is inserted through the notch 1011 and is adapted and installed in the first matching groove 1012 and the second matching groove 1013. By connecting the first matching groove 1012 and the second matching groove 1013 to the notch 1011, the notch 1011 provides a direct access for the installation of the tension spring assembly 3. Since the first matching groove 1012 and the second matching groove 1013 are both connected to the notch 1011, the tension spring assembly 3 can more conveniently enter each slot through the notch 1011. This interconnected structure avoids complex installation steps. Installers no longer need to precisely align the tension spring assembly with each individual slot for installation. Instead, the notch 1011 provides a unified channel to guide the tension spring assembly 3 to the appropriate position, greatly improving installation efficiency. Furthermore, the first and second mating grooves 1012, 1013 provide a precise installation location for the tension spring assembly 3, ensuring its accurate placement on the anti-loosening base 1. The interconnected notch 1011 further defines the horizontal position of the tension spring assembly 3, preventing lateral displacement and ensuring that the tension spring assembly 3 remains in a stable position during operation, thus ensuring the proper operation of the entire device.

[0046] like Figure 6 、 Figure 7 and Figure 8As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines: it also includes an adapting groove 103, which is disposed on the end surface of the anti-loosening base 1 and communicates with the adapting notch 101. The spiral direction of the tension spring assembly 3 is the same as the extension direction of the adapting groove 103, and the tension spring assembly 3 is adapted and installed in the adapting groove 103. By disposing the adapting groove 103 on two oppositely disposed end surfaces of the anti-loosening base 1, the tension spring assembly 3 is adapted and installed in the adapting groove 103. On the one hand, the adapting groove 103 can precisely limit the tension spring assembly 3, preventing the tension spring assembly 3 from unnecessary displacement on the end surface of the anti-loosening base 1. Since the tension spring assembly 3 is installed in the two oppositely disposed adapting grooves 103, its movement in both the horizontal and vertical directions is effectively restricted, thereby ensuring that the tension spring assembly 3 always maintains an accurate position during operation, providing a basic guarantee for the stable operation of the entire anti-loosening device. Furthermore, the spiral direction of the tension spring assembly 3 is the same as the extending direction of the adapting groove 103. This allows the adapting groove 103 to suppress the twisting tendency of the tension spring assembly 3 when subjected to external force. When the tension spring assembly 3 attempts to rotate, the sidewalls of the adapting groove 103 exert reverse resistance on the tension spring assembly 3, preventing it from rotating. This ensures that the direction of the elastic force of the tension spring assembly 3 remains consistent, stably exerting its anti-loosening effect.

[0047] like Figure 6 、 Figure 7 and Figure 8 As shown, in addition to the features of the above-described embodiment, this embodiment further defines: the adapting groove 103 includes a first adapting groove 1031 and a second adapting groove 1032. The first adapting groove 1031 is provided on one end surface of the anti-loosening base 1, and the second adapting groove 1032 is provided on the other end surface of the anti-loosening base 1. The first adapting groove 1031 and the second adapting groove 1032 are both connected to the adapting notch 101. The tension spring assembly 3 is adapted and installed in the first adapting groove 1031 and the second adapting groove 1032. By providing the first adapting groove 1031 and the second adapting groove 1032 on the two end surfaces of the anti-loosening base 1 and both being connected to the adapting notch 101, the tension spring assembly 3 is secured in place at multiple locations with the anti-loosening base 1. The tension spring assembly 3 can be initially positioned at the adapting notch 101 and then inserted into the adapting grooves on the two end surfaces. This multi-point securing method effectively prevents the anti-loosening base 1 from shifting and loosening during operation. The interconnected design facilitates force transmission and dispersion. External forces acting on the tension spring assembly 3 are evenly distributed throughout the anti-loosening base 1 via the adapting notch 101, avoiding stress concentration, reducing the risk of component damage, and extending the service life of the anti-loosening base 1. Furthermore, the elastic force generated by the tension spring assembly 3 during its expansion and contraction can also be precisely applied to the relevant anti-loosening components via the adapting notch 101, ensuring the reliability and durability of the anti-loosening effect.

[0048] Example 2

[0049] like Figures 1 to 8 As shown, this embodiment discloses a dishwasher, comprising: the above-mentioned anti-loosening structure; a dishwasher housing, on which the anti-loosening structure is arranged; and a door body, which is connected to the dishwasher housing via the anti-loosening structure.

[0050] A second aspect of the present application discloses a dishwasher that is connected to the dishwasher housing using mounting holes 104 of an anti-loosening structure. Mounting holes 104 provide precise positioning points for the connection between the anti-loosening structure and the dishwasher housing. Mounting holes 104 ensure that the anti-loosening structure is installed on the dishwasher housing according to design requirements. When the user opens the dishwasher door, a tensile force acts on the door. This force is transmitted to the housing through the anti-loosening structure and mounting holes 104, allowing the door to open smoothly without shaking or abnormal displacement due to a loose connection. A good door seal is essential for the proper operation of the dishwasher. The anti-loosening structure helps maintain a tight fit between the door and the housing, thereby ensuring a good seal. When the door is securely connected to the anti-loosening structure provided on the housing, it ensures that the sealing material, such as the sealing strip, between the door and the housing is properly positioned and performs its sealing function, preventing moisture, heat, etc. from escaping through the gap between the door and the housing, thereby improving the dishwasher's energy efficiency and washing performance.

[0051] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An anti-loosening structure, characterized in that: The anti-loosening structure includes: An anti-loosening base (1), the anti-loosening base (1) is provided with an adapting notch (101), and a side wall of the adapting notch (101) is provided with a limiting groove (102) communicating with the adapting notch (101); An anti-loosening protrusion (2), the anti-loosening protrusion (2) being arranged on the anti-loosening base (1), the anti-loosening protrusion (2) and the limiting groove (102) being located on the same side of the adapting notch (101); The tension spring assembly (3) is clamped between the anti-loosening base (1), the tension spring assembly (3) is clamped at the adapting notch (101), part of the tension spring assembly (3) is limited at the anti-loosening protrusion (2), and part of the tension spring assembly (3) is limited at the limiting groove (102).

2. The anti-loosening structure according to claim 1, characterized in that: The tension spring assembly (3) includes a telescopic portion (31), a first extension portion (32) and a second extension portion (33); the anti-loosening base (1) is clamped between the telescopic portions (31); the first extension portion (32) is connected to the end of the telescopic portion (31); the first extension portion (32) extends toward the inner side of the telescopic portion (31); the second extension portion (33) is connected to the end of the first extension portion (32) and extends toward the anti-loosening base (1); the second extension portion (33) extends to the limiting groove (102).

3. The anti-loosening structure according to claim 2, characterized in that: The telescopic portion (31) extends spirally, and the spiral axis of the telescopic portion (31) is parallel to the extension direction of the second extension portion (33); and / or the spiral axis of the telescopic portion (31) is located between the anti-loosening protrusion (2) and the second extension portion (33); And / or the telescopic portion (31), the first extension portion (32) and the second extension portion (33) are integrally formed.

4. The anti-loosening structure according to claim 2, characterized in that: The projection of the telescopic portion (31) toward the anti-loosening base (1) is located on the anti-loosening base (1), and the other portion is located at the adapting notch (101). The projection area on the anti-loosening base (1) is larger than the projection area at the adapting notch (101).

5. The anti-loosening structure according to claim 1, characterized in that: The anti-loosening base (1) and the anti-loosening protrusion (2) are integrally formed; And / or further comprises a mounting hole (104), wherein the mounting hole (104) is arranged on the anti-loosening base (1) and is located between the anti-loosening protrusion (2) and the limiting groove (102), and the mounting hole (104) is used for connecting to an external structure.

6. The anti-loosening structure according to claim 1, characterized in that: The anti-loosening base (1) is rectangular, the adapting notch (101) is located on a side wall of one side of the anti-loosening base (1), and the side wall of the adapting notch (101) is spaced apart from the side wall of the adjacent anti-loosening base (1).

7. The anti-loosening structure according to claim 6, characterized in that: The adapting notch (101) comprises a notch (1011), a first matching groove (1012) and a second matching groove (1013); the notch (1011) is located on a side wall of one side of the anti-loosening base (1); the limiting groove (102) is connected to the notch (1011); the first matching groove (1012) and the second matching groove (1013) are both connected to the notch (1011); the first matching groove (1012), the limiting groove (102) and the second matching groove (1013) are arranged in sequence and spaced apart; the tension spring assembly (3) is passed through the notch (1011); the tension spring assembly (3) is adapted and installed with the first matching groove (1012) and the second matching groove (1013).

8. The anti-loosening structure according to claim 1, characterized in that: It also includes an adapting groove (103), which is arranged on the end surface of the anti-loosening base (1), the adapting groove (103) is connected to the adapting notch (101), the spiral direction of the tension spring assembly (3) is the same as the extension direction of the adapting groove (103), and the tension spring assembly (3) is adapted and installed in the adapting groove (103).

9. The anti-loosening structure according to claim 8, characterized in that: The adapting groove (103) comprises a first adapting groove (1031) and a second adapting groove (1032), wherein the first adapting groove (1031) is arranged on one end face of the anti-loosening base (1), and the second adapting groove (1032) is arranged on the other end face of the anti-loosening base (1), and the first adapting groove (1031) and the second adapting groove (1032) are both communicated with the adapting notch (101), and the tension spring assembly (3) is adapted and installed with the first adapting groove (1031) and the second adapting groove (1032).

10. A dishwasher, characterized in that: The dishwasher comprises: The anti-loosening structure according to any one of claims 1 to 9; A dishwasher housing, wherein the anti-loosening structure is provided on the dishwasher housing; A door body is connected to the dishwasher body through the anti-loosening structure.

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