Hook

Abstract

The utility model provides a hook which comprises a main body and a free end, the upper portion of the main body can be connected with an external rod body so that the hook can be fixed to the external rod body, the lower portion of the main body is connected with the free end, and the free end is of a preset shape so that the hook can hook a target object. Wherein at least one part of the hook is of a hollow structure, a flow guide window is arranged on the hook, and the flow guide window is communicated with the hollow structure, so that when a user lifts the hook from water, water flowing into the hook can flow to the outside of the hook through the flow guide window.

Description

Technical Field

[0001] The present application relates to the field of pool cleaning, and in particular to a hook. Background Art

[0002] As living standards improve, pools are becoming increasingly commonplace. Consequently, the demand for pool cleaning has increased. Consequently, a wide range of pool cleaning devices has emerged. Existing pool cleaning devices are primarily designed to clean the pool bottom, walls, and other areas.

[0003] After cleaning is completed, the pool cleaning device needs to be cleaned and stored. When the cleaning device comes out of the water, a salvaging device is needed to pull the pool cleaning device out of the water and onto the shore. The existing salvaging device includes a rod body and a hook, the rod body is used for holding, and the hook is used to hook the cleaning device so as to pull the cleaning device onto the shore. In the prior art, the rod body is generally a hollow tubular structure made of high-strength material. This type of rod body is light in weight and high in strength, but has the disadvantage that the hollow structure is easy to get water in, so a drainage hole is provided in the part of the rod body near the hook. When the cleaning device is fished out, water enters the hollow structure and then sprays out from the drainage hole, causing the user's shoes or feet to get wet. In order to avoid getting wet feet, the user may use too much force due to stress reaction and fall. Utility Model Content

[0004] In order to solve the technical problem, the purpose of this application is to provide a hook that can solve the problem of wet shoes or feet of users. The specific solution adopted is as follows:

[0005] A hook comprises a main body and a free end, wherein the upper portion of the main body can be connected to an external rod body to fix the hook to the external rod body, and the lower portion of the main body is connected to the free end, and the free end has a predetermined shape so that the hook can hook a target object, wherein at least a portion of the hook is a hollow structure, and a guide window is provided on the hook, the guide window is connected to the hollow structure and is used to guide water flowing through the interior of the hook outward, so that when the user lifts the hook from the water, the water flowing into the hook can flow to the outside of the hook through the guide window.

[0006] Furthermore, in the above-mentioned hook, the guide window extends inward from the outer peripheral surface of the hook from top to bottom.

[0007] Furthermore, in the above-mentioned hook, the guide window includes a first side window and a second side window, and the first side window and the second side window are opposite to each other.

[0008] Furthermore, for the hook, the bottom ends of the first side window and the second side window to the free end are non-hollow structures.

[0009] Furthermore, the above-mentioned hook, the first side window and the second side window are combined together to form a V shape or an approximately V shape.

[0010] Furthermore, the hook is provided with a guide groove on at least a portion of the outer surface of the free end.

[0011] Furthermore, in the above-mentioned hook, the guide window is provided with a plurality of grille openings.

[0012] Furthermore, in the above-mentioned hook, the grille opening extends inward from top to bottom.

[0013] Furthermore, in the above-mentioned hook, a connecting piece is provided on the upper portion of the main body, and the connecting piece is used to connect the main body with the external rod.

[0014] Furthermore, in the above-mentioned hook, the upper portion of the main body has a through hole, and the connecting member is connected to the external rod body through the through hole.

[0015] Furthermore, for the above-mentioned hook, the predetermined shape is L-shape, J-shape, approximately L-shape or approximately J-shape.

[0016] Compared with the prior art, this application has the following advantages:

[0017] This application uses the hollow structure and diversion window of the hook to divert the water in the external rod and hook to the hook part for discharge, avoiding the water gushing out downward, splashing water, and spraying water to a long distance, providing a better user experience.

[0018] The above description is only an overview of the technical solution of this application. In order to more clearly understand the technical means of this application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of this application more obvious and easy to understand, the specific implementation methods of this application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments according to the present application and should not be regarded as limiting the scope of the present application.

[0020] Figure 1A is a cross-sectional view of a salvage device using a hook according to an embodiment of the present application;

[0021] Figure 1B is another cross-sectional view of a salvage device using a hook according to an embodiment of the present application;

[0022] Figure 2A schematic structural diagram of a hook according to an embodiment of the present application; and

[0023] Figure 3 It is a cross-sectional schematic diagram of the embodiment shown in FIG1 .

[0024] In the above drawings, 1, main body; 2, free end; 3, guide window; 31, first side window; 32, second side window; 4, rod body; 5, connecting piece; 101, through hole; 201, guide groove; 301, grille. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0026] To facilitate understanding of the technical solutions of the embodiments of the present application, the following describes the related technologies of the embodiments of the present application. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application.

[0027] The present application is described in detail below with reference to the accompanying drawings. Figure 1A is a cross-sectional view of a salvage device according to an embodiment of the present application. Figure 1B 2 is another cross-sectional view of the salvage device according to an embodiment of the present invention. Figure 2 It is a structural diagram of a hook according to an embodiment of the present application. Figure 3 yes Figure 2 Cross-section of the hook of the illustrated embodiment.

[0028] The present application provides a hook. The hook is a component of a salvaging device. A user can use the hook to hook an automatic pool cleaning device in a pool to bring it close to the shore, and then continue to use the salvaging device to lift the automatic pool cleaning device out of the water.

[0029] The automatic pool cleaning device can be a device such as an automatic cleaning robot. The automatic pool cleaning device is capable of performing mobile cleaning within a pool-shaped structure, such as a pool, swimming pool, spa pool, reservoir, tank, or trough. Unless otherwise specified, the following description will use a robot as an example of the automatic pool cleaning device, and a swimming pool as an example of a pool-shaped structure. After the robot completes its work in the water, the user needs to lift it out of the water on shore for storage.

[0030] like Figure 1A and 1BAs shown in , the salvage device includes an outer rod body 4 and a hook. The hook is located at the lower end of the outer rod body 4 and is connected to the outer rod body 4.

[0031] It is understandable that for larger pools, the length of the external rod 4 needs to reach 1m or even 3m. At the same time, to accommodate the weight of the robot, the external rod 4 also has strength requirements. Therefore, the external rod 4 is generally made of high-strength materials to ensure that it can withstand a certain amount of external tension. It is also designed as a hollow structure to reduce its own weight. The lower end of the hollow structure is connected to the hook (i.e., connected to the hook body 1), so that water in the external rod can be discharged downward through the hook.

[0032] like Figure 1A 、 Figure 1B as well as Figure 2 As shown, the hook includes a main body 1 and a free end 2, the upper part of the main body 1 is connected to the external rod body 4, so that the hook is fixed to the external rod body 4, and the lower part of the main body 1 is connected to the free end 2, and the free end 2 has a predetermined shape so that the hook can hook the target object, wherein at least a portion of the hook is a hollow structure, and a guide window 3 is provided on the hook, and the guide window 3 is connected to the hollow structure, so that when the user lifts the hook from the water, the water flowing into the hook can flow to the outside of the hook through the guide window 3.

[0033] The upper portion of the main body 1 can be connected to the external rod 4 by means such as riveting, welding, bolting, or elastic connectors, thereby securing the hook to the lower end of the external rod 4. The following describes exemplary methods for connecting the hook to the external rod 4 in conjunction with specific embodiments. Those skilled in the art can selectively configure the connection method between the hook and the external rod 4 based on the technical principles of this application.

[0034] The lower portion of the main body 1 can be connected to the free end 2 by means such as snap fastening, riveting, welding, bolting, or elastic connectors. The lower portion of the main body 1 can also be integrally formed with the free end 2. Those skilled in the art can selectively configure the connection method between the main body 1 and the free end 2 based on the technical principles of this application.

[0035] The free end 2 extends from the lower part of the main body 1 in a direction away from the external rod body 4 so as to provide an accommodating space for at least a part of the target object (such as a hook, protrusion, groove, handle, etc. on the target object) when the hook "hooks" the target object (such as a robot).

[0036] The free end 2 has a predetermined shape. The predetermined shape facilitates the hook to hook the robot through the free end 2 and lift the robot. Preferably, the predetermined shape is L-shaped, J-shaped, approximately L-shaped or approximately J-shaped. Figure 2 and Figure 3 As shown in FIG, the end of the free end 2 away from the main body 1 extends upward or obliquely upward by a predetermined length, and the predetermined extension helps the hook to smoothly hook the target object. Those skilled in the art can select the predetermined shape based on the technical principles of this application.

[0037] In one embodiment, the predetermined shape is an L-shape, and the portion of the free end 2 connected to the main body 1 and the portion used to hook the robot may be different in thickness. For example, the cross-sectional area of ​​the portion of the free end 2 connected to the main body 1 (hereinafter referred to as the connecting side of the free end 2) is greater than or equal to a first predetermined area (the first predetermined area is, for example, 25 cm 2 ) in order to increase or maintain the strength of the free end 2; and the cross-sectional area of ​​the portion of the free end 2 for hooking the robot (hereinafter referred to as: the free side of the free end 2) is less than or equal to a second predetermined area (the second predetermined area is, for example, 10 cm 2 ), making it easier for the hook to hook the robot.

[0038] In one embodiment, the free end 2 gradually tapers from the connection side toward the free side. In other words, the cross-sectional area of ​​the connection side is larger than the cross-sectional area of ​​the free side, and the cross-sectional area of ​​the free end 2 gradually decreases from the connection side toward the free side. This design of the free end 2 maintains a certain strength and is not prone to breakage. Furthermore, the thinner and more flexible free side facilitates the hook's successful hooking of the target object.

[0039] At least a portion of the hook is hollow. The hollow structure of the hook is connected to the hollow structure of the external rod 4, so that when the user uses the hook to lift the robot from the swimming pool, the water in the external rod 4 can be discharged downward through the hollow structure of the hook. In other words, the hook is connected to the external rod 4, and the water in the external rod 4 enters the hollow structure of the hook along the hollow structure of the external rod 4 and continues to be discharged from the guide window 3 to a predetermined direction (such as Figure 1A and Figure 1B The predetermined direction is, for example, an obliquely downward or downward direction to prevent the water from flowing sideways toward the outer rod 4 and being sprayed onto the user's clothes or shoes.

[0040] The guide window 3 is connected to the hollow structure of the hook, and further connected to the hollow structure of the external rod body 4, and is used to guide the water flowing through the inside of the hook outward, so that when the user lifts the hook from the water (for example, using the hook to lift a robot from the water), the water flowing into the hook can flow to the outside of the hook through the guide window 3.

[0041] In one embodiment, the guide window 3 can be square, diamond, circular, elliptical or other irregular shapes. The guide window 3 can be set on the main body 1 or on the free end 2.

[0042] In one embodiment, the guide window 3 may be composed of a plurality of openings. For example, the guide window 3 may be composed of a plurality of circular openings arranged in a regular pattern. The regular pattern may be, for example, a rectangular grid or a square grid, for example, forming an M x N matrix, wherein the distance between each opening is equal. For another example, the guide window 3 may be composed of a plurality of diamond-shaped openings arranged in a regular pattern.

[0043] In one embodiment, the guide window 3 can be arranged along the radial direction of the hook, for example, the guide window 3 can be arranged along the radial direction of the main body 1 of the hook. Specifically, the plane where the guide window 3 is located can be parallel to the cross-section of the hook, for example, the plane where the guide window 3 is located can be parallel to the cross-section of the main body 1 of the hook. Such an arrangement of the guide window 3 can enable the guide window 3 to provide additional support for the hook in the radial direction of the hook, which helps to increase the strength of the hook, and also guide the water flow in the axial direction along the hook. Moreover, since the guide window 3 has a certain blocking effect on the water flow on the downward path, it can appropriately slow down the downward flow speed of the water, thereby avoiding the water gushing out downward, splashing water, and spraying water to a long distance. In another embodiment of the present application, the guide window 3 can also be arranged not parallel to the cross-section of the hook to guide the water flow to other directions.

[0044] like Figure 1A 、 Figure 1B and Figure 2 As shown, preferably, the guide window 3 extends inward from the outer circumference of the hook from top to bottom.

[0045] For example, the guide window 3 can be planar or arcuate, arranged obliquely in the axial direction from the outer circumference of the hook (e.g., the outer circumference of the hook body 1). In this example, the guide window 3 can be composed of one or more planar windows or one or more arcuate windows. The guide window 3 can also be in the shape of an inverted cone or a shape similar to an inverted cone, and be arranged obliquely in the axial direction from the outer circumference of the body 1. For example, the guide window 3 can be in the shape of an inverted cone, a quasi-inverted cone, or an inverted triangular pyramid.

[0046] The outer peripheral surface of the main body 1 is, for example, the outer wall or inner wall of the main body 1. The purpose of the inclined arrangement (corresponding to the guide window 3 extending inward from the outer peripheral surface of the hook from top to bottom) is, on the one hand, to enable the guide window 3 to provide additional support for the hook in the radial direction of the hook, and on the other hand, to form a certain angle between the guide window 3 and the direction of water flow (assuming that the user lifts the hook vertically upward, and the water flows downward along the hollow structure of the main body 1), thereby helping the guide window 3 to divide and guide the water flow, thereby preventing the water from gushing out downward, splashing, or spraying to a long distance.

[0047] Preferably, the guide window 3 includes a first side window 31 and a second side window 32 , and the first side window 31 and the second side window 32 are opposite to each other.

[0048] In one embodiment, the first side window 31 and the second side window 32 are positioned opposite each other, or symmetrically. For example, the first side window 31 and the second side window 32 can be positioned at the same height, forming a symmetrical structure. In another embodiment, the first side window 31 and the second side window 32 can be positioned one above the other, forming an asymmetrical structure. For example, when a user uses the hook to lift the robot from the water, according to the hook's instructions, the first side window faces toward the pool. Therefore, the first side window can be positioned higher on the hook than the second side window. This allows water to be directed toward the first side window and then discharged toward the pool, preventing it from flowing toward the user and wetting their clothes and shoes. If the water flow is too strong and the first side window cannot fully direct the water, some of the water will be directed toward the lower-positioned second side window and discharged from it. In this case, due to the lower position of the second side window, the water outlet is also lower, making it less likely that the discharged water will wet the user's clothes and shoes.

[0049] Those skilled in the art can set the relative positions of the first side window and the second side window according to the technical principles of this application. As long as the technical principles of this application can be implemented, it falls within the scope of protection of this application.

[0050] Preferably, the first side window 31 and the second side window 32 are non-hollow structures from their bottom ends to the free end 2 .

[0051] It can be understood that, after being guided by the first side window 31 and the second side window 32, the water flow can be discharged in a predetermined direction (such as Figure 1A and Figure 1B(as indicated by the dotted arrow in the figure). The bottom ends of the first side window 31 and the second side window 32 may be connected or separated. Regardless of whether the bottom ends of the first side window 31 and the second side window 32 are connected or separated, the bottom ends of the first side window 31 and the second side window 32 can provide a certain degree of blocking and dividing effect on the water flow (e.g., water flow from top to bottom), thereby preventing water from gushing downward. In addition, the non-hollow structure between the bottom ends of the first side window 31 and the second side window 32 can also enhance the overall strength of the hook, especially the strength of the free end 2.

[0052] In one embodiment, if Figure 1B As shown, the first side window 31 and the second side window 32 are combined together to form a V-shape or a nearly V-shape.

[0053] It is understood that the first side window 31 and the second side window 32 are arranged at the same height. When the water flow is too strong, it will be directed to the first and second side windows 31 and 32 in the predetermined direction. This can prevent excessive water flow from one side window, causing excessive water pressure and spraying water far away, wetting the user's clothes and shoes. In addition, the V-shaped or nearly V-shaped side window design can also provide a certain degree of stability between the main body 1 and the free end 2.

[0054] Preferably, a guide groove 201 is provided on at least a portion of the outer surface of the free end 2 .

[0055] One end of the guide groove 201 is connected to the guide window 3, and the guide groove 201 extends along the outer surface of the free end 2. In addition, the guide groove 201 has a certain depth (for example, 1-3 cm deep). The inner wall of the guide groove 201 can further guide the water discharged from the guide window 3 in a predetermined direction (for example, guiding the water downward along the outer surface of the free end 2) to avoid splashing water.

[0056] In one embodiment, if Figure 2 and Figure 3 As shown, the guide window 3 is provided with a plurality of grille openings 301 .

[0057] The grille openings 301 function to disrupt the surface tension of the water flow, mitigate the impact of the water flow, and prevent splashing. The greater the number of grille openings 301, the more effectively the surface tension is disrupted and the more pronounced the mitigation of the impact of the water flow. However, excessive grille openings 301 can delay the timely discharge of water in the event of excessive water flow. Therefore, the number of grille openings 301 should be tailored to the flow rate. Generally, each guide window 3 has 2-8 grille openings 301.

[0058] In one embodiment, if Figure 2 and Figure 3As shown, the plurality of grille openings 301 are of the same length and are parallel to each other. In another embodiment, the plurality of grille openings may also be staggered.

[0059] Preferably, the grille opening 301 extends inward from top to bottom.

[0060] The inclined arrangement of the grille opening can coordinate with the flow direction of the water (e.g., along the axial direction of the hollow structure) to guide the water out of the grille opening 301. It is understood that the grille opening 301 is a longitudinal strip-shaped opening. For example, the grille opening 301 can be a rectangular strip-shaped opening or an S-shaped strip-shaped opening.

[0061] like Figure 1A and Figure 1B As shown, a connecting member 5 is provided on the upper portion of the main body 1 , and the connecting member 5 is used to connect the main body 1 with the external rod 4 .

[0062] Specifically, the main body 1 and the outer rod 4 are detachably connected by a connector 5, which facilitates the removal and replacement of the hook from the outer rod 4. For example, if the hook or the outer rod 4 is damaged, the damaged part can be replaced by the connector 5. The connector 5 can be a rivet, screw, bolt, or snap.

[0063] like Figure 1A and Figure 1B As shown, the upper portion of the main body 1 has a through hole 101 , and the connecting member 5 is connected to the external rod 4 through the through hole 101 .

[0064] For example, the connector 5 is a herringbone buckle, comprising two arms and a connecting portion; the arms are provided with a locking protrusion, which simultaneously engages with the through hole 101 on the main body 1 and the mounting hole on the external rod 4, thereby securing the main body 1 and the external rod 4.

[0065] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0067] The above is merely an exemplary embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope described in this application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A hook comprising a main body (1) and a free end (2), wherein: The upper portion of the main body (1) can be connected to an external rod, thereby fixing the hook to the external rod, and, The lower portion of the main body (1) is connected to the free end (2), and the free end (2) has a predetermined shape so that the hook can hook the target object, wherein At least a portion of the hook is in a hollow structure, and a guide window (3) is provided on the hook. The guide window (3) is connected to the hollow structure, so that when a user lifts the hook out of water, water flowing into the hook can flow to the outside of the hook through the guide window (3).

2. The hook according to claim 1, characterized in that The guide window (3) extends inward from the outer peripheral surface of the hook from top to bottom.

3. The hook according to claim 1, characterized in that The guide window (3) comprises a first side window and a second side window, and the first side window and the second side window are opposite to each other.

4. The hook according to claim 3, characterized in that The bottom ends of the first side window and the second side window to the free end (2) are non-hollow structures.

5. The hook according to claim 4, characterized in that: The first side window and the second side window are combined to form a V-shape or an approximately V-shape.

6. The hook according to any one of claims 2 to 5, characterized in that: A guide groove (201) is provided on at least a portion of the outer surface of the free end (2).

7. The hook according to any one of claims 2 to 5, characterized in that: The guide window (3) is provided with a plurality of grille openings (301).

8. The hook according to claim 7, characterized in that: The grille opening (301) extends inward from top to bottom.

9. The hook according to claim 1, characterized in that A connecting piece is provided on the upper portion of the main body (1), and the connecting piece is used to connect the main body (1) with the external rod body.

10. The hook according to claim 9, characterized in that: The upper portion of the main body (1) is provided with a through hole (101), and the connecting member is connected to the external rod body through the through hole (101).

11. The hook according to claim 1, characterized in that The predetermined shape is L-shape, J-shape, approximately L-shape or approximately J-shape.

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