Pipeline cleaner

Abstract

A pipeline cleaner (100), comprising a drum (120), a motor (140) and a cable (130), wherein the drum (120) is provided with an accommodating space, the motor (140) drives the drum (120) to rotate, and the cable (130) is at least partially stored in the accommodating space; and the total length of the cable (130) after being spread is defined as a cable length L, the drum (120) has an inner bottom surface for forming the accommodation space, the diameter of the inner bottom surface is defined as a first diameter D, and when the cable length L and the first diameter D are both in centimeters, the ratio L / D2 of the cable length L to the square of the first diameter D is greater than or equal to 3.5.

Description

pipe cleaners

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 30, 2023 with application number 202311111738.0 and the Chinese patent application filed with the China Patent Office on August 30, 2023 with application number 202322353678.5, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to an electric tool, in particular to a pipe cleaner. Background Art

[0003] A pipe cleaner in the related art is an electric tool used to dredge pipes, which mainly dredges and cleans the pipes by continuously outputting cables into the pipes.

[0004] The pipe cleaner includes a drum for the cable, and the drum has a space for accommodating the cable. The space capacity of the drum of the existing pipe cleaner is much larger than the volume of the cable, which not only causes space waste, but also increases the volume of the drum, affecting the dynamic balance of the pipe cleaner.

[0005] This section provides background information related to the present application which is not necessarily prior art.

[0006] Summary of the Invention

[0007] The present application adopts the following technical solution: a pipe cleaner comprising: a drum forming a storage space; a motor driving the drum to rotate; a cable at least partially stored in the storage space; the total length of the cable extended is defined as the cable length L; the drum has an inner bottom surface forming the storage space, the diameter of the inner bottom surface is a first diameter D; when the cable length L and the first diameter D are both in centimeters, the ratio of the cable length L to the square of the first diameter D is L / D 2 Greater than or equal to 3.5.

[0008] In some embodiments, the first diameter D is less than or equal to 14.5 cm.

[0009] In some embodiments, the maximum outer diameter of the drum is the second diameter D1 , and the second diameter D1 is less than or equal to 17 cm.

[0010] In some embodiments, the cable is placed in the accommodation space in a coiled state, and the maximum coiling height that the cable can reach when coiled is H. When the cable length L is 762 cm, the maximum coiling height H is less than or equal to 7.5 cm.

[0011] In some embodiments, the pipe cleaner further includes a handle and a feed mechanism. The handle is connected to the rear of the drum and is used for the user to hold. The feed mechanism is connected to the front of the drum and is used to feed or retract the cable. The distance between the rear end face of the handle and the front end face of the feed mechanism is the overall length L0 of the pipe cleaner, and the overall length L0 is less than or equal to 37 cm.

[0012] In some embodiments, the pipe cleaner further includes an operating member connected to the feeding mechanism and used to change the clamping state of the feeding mechanism on the cable. The distance between the front end face of the feeding mechanism and the rear end face of the operating member is a first length L1, and the first length L1 is less than or equal to 12 cm.

[0013] In some embodiments, the distance between the front end surface of the feeding mechanism and the rear end surface of the drum is a second length L2, and the second length L2 is less than or equal to 23 cm.

[0014] In some embodiments, the operating member includes a first end and a second end that are relatively arranged, the first end is rotatably connected to the feeding mechanism, the second end is a pressing end, and an elastic member is arranged between the middle part of the operating member and the feeding mechanism; the pipe cleaner also includes a limiting spring piece, one end of the limiting spring piece is fixedly connected to the first end, and the other end of the limiting spring piece is provided with a clamping portion that can clamp the cable.

[0015] In some embodiments, a channel for the cable to pass through is formed in the feeding mechanism, and the radial dimension of the channel can be changed by operating the operating member; the cable includes a main body and a limiting protrusion, the radial dimension of the limiting protrusion is larger than the radial dimension of the main body, and when the operating member is in the initial state, the radial dimension in the channel is smaller than the radial dimension of the limiting protrusion.

[0016] In some embodiments, the effective volume of the drum's accommodating space is defined as V1, V1 = π × (D / 2) 2 ×H, where H is the maximum coiling height of the cable when coiled in the accommodation space. When the cable length L is measured in centimeters and the effective volume V1 is measured in cubic centimeters, the ratio of the cable length L to the effective volume V1 is greater than or equal to 0.75.

[0017] In some embodiments, the total volume V2 of the accommodating space of the drum, the ratio of the effective volume V1 to the total volume V2 is greater than or equal to 80% and less than or equal to 100%.

[0018] In some embodiments, the accommodating space includes an inner bottom surface and an inner top surface, the distance between the inner bottom surface and the inner top surface is a second distance B, the drum also includes a protruding structure protruding from the inner bottom surface and extending toward the inner top surface, the protruding structure is used to install the motor, and the distance between the end surface of the protruding structure away from the inner bottom surface and the inner top surface is a first distance A, wherein the ratio of the first distance A to the second distance B is greater than or equal to 0 and less than or equal to 35%.

[0019] In some embodiments, the pipe cleaner further comprises an extended guide tube and a feeding mechanism, the feeding mechanism being connected to the front of the drum and used for feeding or retrieving the cable, and the extended guide tube being connected to the front end of the feeding mechanism and used for guiding the cable.

[0020] In some embodiments, the extended guide tube is a straight tube structure; or, the extended guide tube includes at least two straight tubes and a connecting elbow, and the connecting elbow is connected between two adjacent straight tubes, so that the two adjacent straight tubes are connected at an angle.

[0021] In some embodiments, the pipe cleaner further includes a feeding mechanism, an operating member, and a stop structure. The feeding mechanism is connected to the front of the drum and is used to feed or recycle the cable. The operating member is connected to the feeding mechanism. The user operates the operating member to change the clamping state of the feeding mechanism on the cable. The stop structure is driven to move by the operating member.

[0022] In some embodiments, the stop structure is a limiting spring piece, which is connected to the operating member. Movement of the operating member can drive the limiting spring piece to be inserted into the cable, so that the cable cannot move in the front-to-back direction.

[0023] A pipe cleaner comprises: a drum forming a storage space; a motor driving the drum to rotate; a cable at least partially stored in the storage space; a handle connected to the rear of the drum for a user to hold; a feed mechanism connected to the front of the drum and used to feed or retract the cable; and an operating member connected to the feed mechanism and used to change the feed mechanism's grip on the cable. The total length of the extended cable is defined as the cable length L. The drum has an inner bottom surface forming the storage space, and the area of ​​the inner bottom surface is S. When the cable length L is measured in centimeters and the area of ​​the inner bottom surface S is measured in square centimeters, the ratio of the total length to the area of ​​the inner bottom surface, L / S, is greater than or equal to 4.4.

[0024] In some embodiments, the diameter of the inner bottom surface is a first diameter D, and the first diameter D is less than or equal to 14.5 cm.

[0025] In some embodiments, the maximum outer diameter of the drum is the second diameter D1 , and the second diameter D1 is less than or equal to 17 cm.

[0026] In some embodiments, the cable is placed in the accommodation space in a coiled state, and the maximum coiling height that the cable can reach when coiled is H. When the cable length L of the cable is 762 cm, the maximum coiling height H is less than or equal to 7.5 cm.

[0027] A pipe cleaner includes: a drum forming a storage space; a motor driving the drum to rotate; a cable at least partially stored in the storage space; a feeding mechanism connected to the front of the drum and used to feed or retract the cable; and a stop structure preventing the cable from ejecting when the cable is coiled in the storage space and reaches a maximum coiling height.

[0028] In some embodiments, the pipe cleaner further includes an operating member connected to the feeding mechanism, and a user operates the operating member to change a clamping state of the feeding mechanism on the cable.

[0029] In some embodiments, the feeding mechanism includes a rotating body disposed around the cable, and the rotating body is driven by the operating member to move toward a direction approaching the cable or away from the cable.

[0030] In some embodiments, the stopping structure is driven to move by the operating member.

[0031] In some embodiments, the stop structure is connected to the operating member, or the stop structure is provided on the operating member.

[0032] In some embodiments, the stop structure is a limiting spring piece, which is connected to the operating member. Movement of the operating member can drive the limiting spring piece to be inserted into the cable, so that the cable cannot move in the front-to-back direction.

[0033] In some embodiments, one end of the limiting spring is provided with a clamping portion capable of clamping the cable.

[0034] In some embodiments, a limiting protrusion is provided on the cable, and the outer diameter of the limiting protrusion is larger than the maximum outer diameter that the rotating body is allowed to pass through.

[0035] In some embodiments, the stop structure is a rotating body that defines the position of the limiting protrusion so that the cable cannot move in the front-to-back direction. In some embodiments, the length of the cable extending beyond the front end surface of the feed mechanism is a third length L3, and the third length L3 is less than or equal to 60 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG1 is a schematic diagram of a pipe cleaner provided in an embodiment of the present application;

[0037] FIG2 is a cross-sectional view of a pipe cleaner provided in an embodiment of the present application;

[0038] FIG3 is a cross-sectional view of a drum of a pipe cleaner provided in an embodiment of the present application;

[0039] FIG4 is a schematic diagram of a drum and a feeding mechanism of a pipe cleaner provided in an embodiment of the present application at a certain viewing angle;

[0040] FIG5 is a schematic diagram of a handle, a battery pack, and a support member of a pipe cleaner provided in an embodiment of the present application at a certain viewing angle;

[0041] FIG6 is a schematic diagram of a first embodiment of the pipe cleaner provided by the present application, provided with an extended guide tube;

[0042] FIG7 is a second schematic diagram of a pipe cleaner provided in an embodiment of the present application provided with an extended guide tube;

[0043] FIG8 is a schematic diagram of an operating member, a limiting spring piece, and a cable of a pipe cleaner provided in an embodiment of the present application;

[0044] FIG9 is a cross-sectional view of a partial structure of a pipe cleaner provided in an embodiment of the present application;

[0045] FIG10 is a schematic diagram of the internal structure of a pipe cleaner provided in an embodiment of the present application;

[0046] FIG11 is a schematic diagram of a cable of a pipe cleaner provided in an embodiment of the present application;

[0047] FIG12 is a cross-sectional view of the cable of FIG11 when used in a pipe cleaner. DETAILED DESCRIPTION

[0048] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0049] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0050] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0051] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0052] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0053] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0054] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0055] As shown in Figures 1 to 5, the present application provides a pipe cleaner 100 that can remove foreign matter from a pipe, restoring the pipe to an unobstructed state. Specifically, the pipe cleaner 100 includes a drum 120, a motor 140, and a cable 130. The drum 120 is a primary component for accommodating the cable 130. A storage space 121 is formed within the drum 120. The drum 120 has an inner bottom surface 123 and an inner top surface 124 that form the storage space 121. The inner bottom surface 123 and the inner top surface 124 are spaced and arranged opposite each other in the front-to-back direction of the pipe cleaner 100, with the diameter of the inner bottom surface 123 being defined as a first diameter D. The motor 140 is connected to the rear of the drum 120 and is capable of driving the drum 120 to rotate about an axis. The cable 130 is at least partially stored in the storage space 121, and the portion of the cable 130 located in the storage space 121 is generally coiled. Driven by motor 140, drum 120, which is transmission-connected to motor 140, rotates about its central axis. As drum 120 rotates, cable 130 switches from a coiled state to an extended state, or vice versa. The total length of cable 130 when extended is defined as cable length L.

[0056] In the embodiment of the present application, the ratio of the total length to the square of the first diameter is greater than or equal to 3.5, that is, L / D 2 Greater than or equal to 3.5. It should be noted that both the cable length L and the first diameter D are expressed in centimeters. If either the cable length L or the first diameter D is expressed in units other than centimeters, it must be converted to centimeters for calculation. By limiting the ratio of the extended cable length L of the cable 130 to the square of the first diameter D of the inner bottom surface 123 to a range greater than or equal to 3.5, the pipe cleaner 100 effectively utilizes the storage space 121 within the drum 120, while also making the pipe cleaner 100 compact and easy to handle.

[0057] In a specific embodiment, L / D 2 is 3.6; in a specific embodiment, L / D 2 is 3.7; in a specific embodiment, L / D 2 is 3.8; in a specific embodiment, L / D 2 is 3.9; in a specific embodiment, L / D 2 is 4.0; in a specific embodiment, L / D 2 is 4.1; in a specific embodiment, L / D 2 is 4.2.

[0058] In some embodiments, the first diameter D is less than or equal to 14.5 cm. In some specific embodiments, the first diameter D is less than or equal to 14 cm. In some other embodiments, the first diameter D is less than or equal to 13.5 cm.

[0059] In a specific embodiment, the first diameter D is 14.5 cm; in a specific embodiment, the first diameter D is 14 cm; in a specific embodiment, the first diameter D is 13.7 cm; in a specific embodiment, the first diameter D is 13 cm.

[0060] As shown in FIG3 , the maximum outer diameter of the drum 120 is defined as a second diameter D1. The second diameter D1 is greater than the first diameter D and is less than or equal to 17 cm. Furthermore, in some embodiments, the second diameter D1 is less than or equal to 16.5 cm. Still further, in some embodiments, the second diameter D1 is less than or equal to 16 cm.

[0061] In a specific embodiment, the second diameter D1 is 17 cm; in a specific embodiment, the second diameter D1 is 16.5 cm; in a specific embodiment, the second diameter D1 is 16 cm; in a specific embodiment, the second diameter D1 is 15.5 cm.

[0062] Continuing with FIG3 , at least a portion of the cable 130 is coiled within the accommodation space 121. When the cable length L of the cable 130 is 762 cm, the maximum coiled height H that the cable 130 can reach when coiled is less than or equal to 7.5 cm. In some embodiments, when the cable length L of the cable 130 is 762 cm, the maximum coiled height H is less than or equal to 7 cm.

[0063] In one specific embodiment, the maximum coiling height H is 6.7 cm; in one specific embodiment, the maximum coiling height H is 6.5 cm; in one specific embodiment, the maximum coiling height H is 6.3 cm; and in one specific embodiment, the maximum coiling height H is 6 cm. It should be noted that the maximum coiling height H referred to in this application refers to a cable 130 with a cable length L of 762 cm.

[0064] Continuing with Figure 3 , the overall height of the accommodating space 121 is H1, i.e., the distance from the end surface of the drum 120 at the closing point to the inner bottom surface 123 of the drum 120 is the overall height H1 of the accommodating space 121. In some embodiments, the overall height H1 of the accommodating space 121 is greater than 7.5 cm. In some embodiments, the overall height H1 is approximately 8.5 cm. In some embodiments, the overall height H1 is approximately 9.5 cm. The overall height H1 refers to the height from the inner bottom surface 123 inside the drum 120 to the closing point of the drum 120 extending to the operating member 160.

[0065] The effective volume of the accommodating space 121 of the drum 120 is defined as V1, V1 = π × (D / 2) 2 ×H, where H is the maximum coiling height of the cable 130 when coiled in the accommodating space 121. It should be noted that the effective volume here refers to the volume occupied by the cable 130 in the accommodating space 121. When the cable length L of the cable 130 is measured in centimeters and the effective volume V1 is measured in cubic centimeters, the ratio of the cable length L of the cable 130 to the effective volume V1 is greater than or equal to 0.75. The following restrictions on this ratio must meet the unit requirements set forth in this paragraph. In some embodiments, the ratio of the cable length L of the cable 130 to the effective volume V1 is greater than or equal to 0.8.

[0066] In a specific embodiment, the ratio of the cable length L to the effective volume V1 is 0.8; in a specific embodiment, the ratio of the cable length L to the effective volume V1 is 0.82; in a specific embodiment, the ratio of the cable length L to the effective volume V1 is 0.84; in a specific embodiment, the ratio of the cable length L to the effective volume V1 is 0.86; in a specific embodiment, the ratio of the cable length L to the effective volume V1 is 0.88.

[0067] The area of ​​the inner bottom surface 123 is defined as S. When the cable length L is measured in centimeters and the area S of the inner bottom surface 123 is measured in square centimeters, the ratio of the cable length L to the area of ​​the inner bottom surface 123 is greater than or equal to 4.4. In other words, the ratio of the cable length L to the area of ​​the inner bottom surface 123 is greater than or equal to 4.4. In one embodiment, when the inner bottom surface 123 is substantially circular, S = π × (D / 2) 2 The following limits on this ratio must satisfy the unit requirements set out in this paragraph.

[0068] In some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 4.5; in some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 4.6; in some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 4.7; in some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 4.8; in some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 4.9; In some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 5.0; in some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 5.1; in some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 5.2; in some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 5.3; in some embodiments, the ratio of the total length of the cable 130 when extended to the area of ​​the inner bottom surface 123 is greater than or equal to 5.4. It should be noted that the total length is measured in centimeters, and the area of ​​the inner bottom surface 123 is measured in square centimeters.

[0069] In a specific embodiment, the ratio of the total length of the cable 130 extended to the area of ​​the inner bottom surface 123 is 5.4; in a specific embodiment, the ratio of the total length of the cable 130 extended to the area of ​​the inner bottom surface 123 is 5.5; in a specific embodiment, the ratio of the total length of the cable 130 extended to the area of ​​the inner bottom surface 123 is 5.6.

[0070] The total volume V2 of the accommodating space 121 of the drum 120 is such that the ratio of the effective volume V1 to the total volume V2 is greater than or equal to 80% and less than or equal to 100%. It should be noted that the total volume V2 is the entire volume of the accommodating space 121, that is, the volume within the height range H1.

[0071] In some embodiments, a ratio of the effective volume V1 to the total volume V2 is greater than or equal to 85% and less than or equal to 95%.

[0072] In a specific embodiment, the ratio of the effective volume V1 to the total volume V2 is 86%; in a specific embodiment, the ratio of the effective volume V1 to the total volume V2 is 88%; in a specific embodiment, the ratio of the effective volume V1 to the total volume V2 is 89%; in a specific embodiment, the ratio of the effective volume V1 to the total volume V2 is 91%; in a specific embodiment, the ratio of the effective volume V1 to the total volume V2 is 93%.

[0073] In one embodiment, the ratio of the cable length L to the square of the first diameter D is approximately 3.8, the first diameter D is 13.7 cm, the second diameter D1 is 16 cm, the maximum coiled height H is approximately 6.5 cm, the ratio of the cable length L to the effective volume V1 is approximately 0.8, and the ratio of the cable length L to the area of ​​the inner bottom surface 123 is approximately 5.1. The various parameters described in this section are based on the unit requirements described above and are not repeated here.

[0074] Continuing with reference to FIG1 , the pipe cleaner 100 further includes a handle 110 and a feeding mechanism 150. The handle 110 is connected to the rear of the drum 120 and is used for the user to hold. The feeding mechanism 150 is connected to the front of the drum 120 and is used to feed or retract the cable 130. The feeding mechanism 150 includes a rotating body 152 arranged around the cable 130. When the rotating body 152 is driven, it moves toward the cable 130 or away from the cable 130. The operating member 160 drives the rotating body 152 to move. The specific structure of the feeding mechanism 150 is prior art and will not be described in detail here. Continuing with reference to FIG2 , the distance between the rear end face of the handle 110 and the front end face 153 of the feeding mechanism 150 is the overall length L0 of the pipe cleaner 100, and the overall length L0 is less than or equal to 37 cm.

[0075] In a specific embodiment, the length L0 of the entire machine is 36.5 cm; in a specific embodiment, the length L0 of the entire machine is 36 cm; in a specific embodiment, the length L0 of the entire machine is 35 cm.

[0076] Continuing with FIG. 1 , the pipe cleaner 100 further includes an operating member 160 connected to the feed mechanism 150 and configured to change the grip of the feed mechanism 150 on the cable 130. In some embodiments, the operating member 160 is a handle. Pressing the handle moves the rotating body 152 toward or away from the cable 130, thereby causing the feed mechanism 150 to clamp or release the cable 130. A motor drives the feed mechanism 150 to continuously clamp the cable 130 and move the cable 130 toward the interior of the drum 120, thereby allowing the cable 130 to be coiled within the drum 120.

[0077] As shown in Figures 8 to 10 , a channel 151 is formed within the feed mechanism 150 for the cable 130 to pass through. The radial dimension of the channel 151 can be adjusted by operating an operating member 160. In some embodiments, the operating member 160 includes a first end and a second end disposed opposite each other. The first end is rotatably connected to the feed mechanism 150, and the second end is a pressing end. An elastic member 162 is disposed between the middle portion of the operating member 160 and the feed mechanism 150.

[0078] After the cable 130 is completely retracted into the receiving space 121 of the drum 120, the cable 130 is tightly coiled in the receiving space 121, so the cable 130 has a tendency to pop outward from the front end surface 153. To overcome this tendency, the pipe cleaner 100 provided in the present application also includes a stop structure. When the cable 130 is coiled in the receiving space 121 and reaches the maximum coiling height, the stop structure prevents the cable 130 from popping out. In other words, the stop structure can provide a blocking force to overcome the popping force generated by the cable 130 in the compressed state.

[0079] It should be noted that the reason why the cable 130 of the present application can be coiled more tightly in the accommodating space 121 is that when the rotating body 152 of the feeding mechanism 150 clamps the cable 130, the clamping force provided by the rotating body 152 is relatively large, so that the cable 130 can be tightly coiled together after being recovered, thereby reducing the length of the drum 120 in the front-to-back direction, thereby achieving the purpose of reducing the overall length of the pipe cleaner 100.

[0080] In some embodiments, the stopping structure is driven to move by the operating member 160 .

[0081] Furthermore, the stopping structure is a limiting spring piece 161 , which is connected to the operating member 160 . The movement of the operating member 160 can drive the limiting spring piece 161 to be inserted into the cable 130 , so that the cable 130 cannot move in the front-rear direction.

[0082] In a specific embodiment, one end of the limiting spring piece 161 is fixedly connected to the first end of the operating member 160, and the other end of the limiting spring piece 161 is provided with a clamping portion capable of clamping the cable 130. Optionally, the clamping portion is a limiting arc surface clamped on the outer wall of the cable 130 or a limiting tip capable of being inserted into the interior of the cable 130.

[0083] The arrangement of the elastic member 162 and the limiting spring 161 forms the operating member 160 into a seesaw structure. When the operating member 160 is in a free, unpressed state, the pressing end of the operating member 160 is lifted by the elastic member 162, causing the limiting spring 161 to engage the cable 130, placing the cable 130 within the engaging portion of the limiting spring 161. When the pressing end of the operating member 160 is pressed down by an external force, i.e., when the pipe cleaner 100 needs to retract or release the cable 130, the limiting spring 161 is lifted, releasing the engagement with the cable 130 and allowing the cable 130 to freely enter and exit the pipe cleaner. When the user releases the operating member 160 after retrieving or releasing the cable 130, the elastic force of the elastic member 162 causes the limiting spring 161 to return to its engaged state on the cable 130, thereby preventing the cable 130 from accidentally detaching. In addition, the provision of the limiting spring piece 161 can also prevent a small section of the front end of the cable 130 from popping out after the cable 130 is completely retracted, thereby improving the user experience.

[0084] As shown in Figures 11 and 12, in some embodiments, the cable 130 includes a main body 131 and a limiting protrusion 132. The radial dimension of the limiting protrusion 132 is larger than the radial dimension of the main body 131. When the operating member 160 is in the initial state, the radial dimension of the channel 151 is smaller than the radial dimension of the limiting protrusion 132. Specifically, the channel 151 is formed by a plurality of rotating bodies 152, and the outer diameter of the limiting protrusion 132 is larger than the maximum outer diameter of the rotating body 152 that can pass through.

[0085] In one embodiment, the stopping structure is a rotating body 152 , which defines the position of the limiting protrusion 132 so that the cable 130 cannot move in the front-to-back direction.

[0086] It should be noted that when the operating member 160 is in the free state, the maximum outer diameter of the cable 130 allowed to pass through the channel 151 is 7 mm, and the outer diameter of the limiting protrusion 132 on the front of the cable 130 is 7.2 mm to 7.5 mm. Although the outer diameter of the limiting protrusion 132 is larger than the maximum outer diameter of the cable 130 allowed to pass through the feed mechanism 150, because the cable 130 is wound in coils, a slight interference fit allows the cable 130 to pass through the opening and enter the feed mechanism 150 under the drive of the motor 140. When the cable 130 is retracted, after the limiting protrusion 132 passes through the opening of the feed mechanism 150, because the outer diameter of the limiting protrusion 132 is larger than the maximum outer diameter allowed by the opening of the feed mechanism 150, the limiting protrusion 132 ensures that if the cable 130 tends to eject outward, it will be blocked by the feeding mechanism 150 because the limiting protrusion 132 is stuck.

[0087] As shown in FIG9 , when the cable 130 is coiled within the accommodating space 121 and coiled to its maximum coiling height, the length of the cable 130 extending beyond the front end 153 of the feed mechanism 150 is a third length L3, which is less than or equal to 60 mm. In some specific embodiments, the third length L3 is less than or equal to 50 mm; in some specific embodiments, the third length L3 is less than or equal to 40 mm. In one embodiment, the third length L3 is approximately 35 mm.

[0088] 2 , the distance between the front end surface 153 of the feeding mechanism 150 and the rear end surface of the operating member 160 is a first length L1 , and the first length L1 is less than or equal to 12 cm.

[0089] In a specific embodiment, the first length L1 is 12 cm; in a specific embodiment, the first length L1 is 11.5 cm; in a specific embodiment, the first length L1 is 11 cm; in a specific embodiment, the first length L1 is 10.5 cm.

[0090] 2 , the distance between the front end surface 153 of the feeding mechanism 150 and the rear end surface of the drum 120 is a second length L2 , and the second length L2 is less than or equal to 23 cm.

[0091] In a specific embodiment, the second length L2 is 22 cm; in a specific embodiment, the second length L2 is 21.5 cm; in a specific embodiment, the second length L2 is 21 cm; in a specific embodiment, the second length L2 is 20.5 cm.

[0092] Continuing with Figures 2, 4, and 5, the distance between the inner bottom surface 123 and the inner top surface 124 of the accommodating space 121 is a second distance B. The drum 120 further includes a raised structure 122 protruding from the inner bottom surface 123 and extending toward the inner top surface 124. The raised structure 122 is used to mount the motor 140. The motor shaft 141 of the motor 140 is fixedly connected to the top of the raised structure 122. The distance between the end surface of the raised structure 122 away from the inner bottom surface 123 and the inner top surface 124 is a first distance A. The ratio of the first distance A to the second distance B is greater than or equal to 0 and less than or equal to 35%. A smaller ratio of A to B means that more of the motor 140 can be inserted into the drum 120. This significantly shortens the length of the entire pipe cleaner 100, making the pipe cleaner 100 more compact.

[0093] In some embodiments, a ratio of the first distance A to the second distance B is approximately 28%.

[0094] It should be noted that the ranges of ratios disclosed in this application refer to the ranges of numerical values ​​of the ratios obtained under specific units.

[0095] When the pipe cleaner 100 is used to unclog a toilet, in order to guide the cable 130, the pipe cleaner 100 also includes an extended guide tube 190. The extended guide tube 190 is connected to the front end of the feed mechanism 150 and is used to guide the cable 130. By using the extended guide tube 190, the distance between the output port of the pipe cleaner 100 and the pipe to be unclogged can be shortened, avoiding the situation where the cable 130 becomes entangled due to the large distance, thereby causing the unclog operation to fail. In addition, by providing the extended guide tube 190, the pipe cleaner 100 can also ensure that the outer surface of the pipe cleaner 100 and the user's hand operating the machine will not come into contact with toilet sewage. Of course, the use scenario of the pipe cleaner 100 equipped with the extended guide tube 190 is not limited to unclogging toilets, but can also be extended to working conditions where the distance between the front end of the pipe cleaner 100 and the pipe to be unclogged is greater than or equal to 15 cm.

[0096] In some embodiments, as shown in Figure 6, the extended guide tube 190 is a straight tube 191. The extended guide tube 190 with a straight tube 191 structure has a simple structure and low cost.

[0097] In some parallel embodiments, the extended guide tube 190 includes at least two straight tubes 191 and a connecting elbow 192. The connecting elbow 192 connects two adjacent straight tubes 191, forming an angle between the two adjacent straight tubes 191. In one specific embodiment, as shown in Figure 7, the extended guide tube 190 is generally L-shaped, comprising two straight tubes 191 and a connecting elbow 192 connecting two branch tubes at a 90° angle. The non-branched extended guide tube 190 can handle more severe working conditions.

[0098] In some embodiments, the extended guide tube 190 is detachably connected to the front end of the feeding mechanism 150 , and the detachable connection method includes but is not limited to threaded connection, snap connection or magnetic connection.

[0099] In some embodiments, the extended guide tube 190 is rotatably connected to the front end of the feeding mechanism 150, so that the extended guide tube 190 can rotate between 0°-90° to cope with more complex working environments.

[0100] 1 , the pipe cleaner 100 further includes a battery pack 170 , which is detachably connected to the bottom of the handle 110 . The detachable connection is not limited to sliding connection. The battery pack 170 is connected to the motor 140 and is used to power the motor 140 .

[0101] Continuing with FIG5 , pipe cleaner 100 further includes a support member 180 located at the bottom of pipe cleaner 100. When a user holds pipe cleaner 100, support member 180 can rest on a support surface provided by an external device or directly on the ground, thereby reducing the weight of pipe cleaner 100 on the user. In some embodiments, support member 180 is a support frame formed by a plurality of rods.

[0102] The above shows and describes the basic principles, main features and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of this application.

Claims

1. A pipe cleaner comprising: The drum forms a receiving space; A motor drives the drum to rotate; The cables are at least partially stored in the accommodation space; in: The total length of the cable extended is defined as the cable length L, the drum has an inner bottom surface forming the accommodating space, the diameter of the inner bottom surface is a first diameter D, and when the cable length L and the first diameter D are both in centimeters, the ratio of the cable length L to the square of the first diameter D is L / D 2 Greater than or equal to 3.

5.

2. The pipe cleaner according to claim 1, characterized in that The first diameter D is less than or equal to 14.5 cm.

3. The pipe cleaner according to claim 1, wherein: The maximum outer diameter of the drum is a second diameter D1, and the second diameter D1 is less than or equal to 17 cm.

4. The pipe cleaner according to claim 1, wherein: The cable is placed in the accommodating space in a coiled state, and the maximum coiling height that the cable can reach when coiled is H. When the cable length L of the cable is 762 cm, the maximum coiling height H is less than or equal to 7.5 cm.

5. The pipe cleaner according to claim 1, further comprising a handle and a feeding mechanism, wherein the handle is connected to the rear of the drum and is used for a user to hold, and the feeding mechanism is connected to the front of the drum and is used to feed or recycle the cable, and the distance between the rear end surface of the handle and the front end surface of the feeding mechanism is the entire length L0 of the pipe cleaner, and the entire length L0 is less than or equal to 37 cm.

6. The pipe cleaner according to claim 5, further comprising an operating member, wherein the operating member is connected to the feeding mechanism and is used to change the clamping state of the feeding mechanism on the cable, and the distance between the front end face of the feeding mechanism and the rear end face of the operating member is a first length L1, and the first length L1 is less than or equal to 12 cm.

7. The pipe cleaner according to claim 5, wherein: The distance between the front end surface of the feeding mechanism and the rear end surface of the drum is a second length L2, and the second length L2 is less than or equal to 23 cm.

8. The pipe cleaner according to claim 6, wherein: The operating member comprises a first end and a second end which are arranged opposite to each other, the first end is rotatably connected to the feeding mechanism, the second end is a pressing end, and an elastic member is arranged between the middle part of the operating member and the feeding mechanism; The pipeline cleaner also includes a limiting spring piece, one end of which is fixedly connected to the first On one end, the other end of the limiting spring piece is provided with a clamping portion capable of clamping the cable.

9. The pipe cleaner according to claim 6, wherein: A channel for the cable to pass through is formed in the feeding mechanism, and the radial size of the channel can be changed by operating the operating member; The cable comprises a main body and a limiting protrusion, the radial dimension of the limiting protrusion is larger than the radial dimension of the main body, and when the operating member is in an initial state, the radial dimension in the channel is smaller than the radial dimension of the limiting protrusion.

10. The pipe cleaner of claim 1, wherein: The effective volume of the drum's accommodating space is defined as V1, V1 = π × (D / 2) 2 ×HG, H is the maximum coiling height of the cable when it is coiled in the accommodating space. When the cable length L is measured in centimeters and the effective volume V1 is measured in cubic centimeters, the ratio of the cable length L to the effective volume V1 is greater than or equal to 0.

75.

11. The pipe cleaner of claim 10, wherein: The total volume V2 of the accommodating space of the drum, the ratio of the effective volume V1 to the total volume V2 is greater than or equal to 80% and less than or equal to 100%.

12. The pipe cleaner of claim 1, wherein: The accommodating space includes an inner bottom surface and an inner top surface, the distance between the inner bottom surface and the inner top surface is a second distance B, the drum also includes a protruding structure protruding from the inner bottom surface and extending toward the inner top surface, the protruding structure is used to install the motor, and the distance between the end surface of the protruding structure away from the inner bottom surface and the inner top surface is a first distance A, wherein the ratio of the first distance A to the second distance B is greater than or equal to 0 and less than or equal to 35%.

13. The pipe cleaner of claim 1, wherein: The pipe cleaner further comprises an extended guide tube and a feeding mechanism, wherein the feeding mechanism is connected to the front of the drum and is used to feed or recycle the cable, and the extended guide tube is connected to the front end of the feeding mechanism and is used to guide the cable.

14. The pipe cleaner of claim 13, wherein: The extended guide tube is a straight tube structure; Alternatively, the extended guide tube includes at least two straight tubes and a connecting elbow, and the connecting elbow is connected between two adjacent straight tubes, so that the two adjacent straight tubes are connected at an angle.

15. The pipe cleaner of claim 1, wherein: The pipe cleaner further includes a feeding mechanism, an operating member and a stop structure. The feeding mechanism is connected in front of the drum and is used to feed or recycle the cable. The operating member is connected to the feeding mechanism. A user operates the operating member to change the clamping state of the feeding mechanism on the cable. The stop structure is driven to move by the operating member.

16. The pipe cleaner of claim 15, wherein: The stop structure is a limit spring piece, and the limit spring piece is connected to the operating member. Movement of the operating member can drive the limit spring piece to be inserted into the cable, so that the cable cannot move in the front-rear direction.

17. A pipe cleaner comprising: The drum forms a receiving space; A motor drives the drum to rotate; The cables are at least partially stored in the accommodation space; a handle connected to the drum and provided for a user to hold; A feeding mechanism, the feeding mechanism is connected in front of the drum and is used to feed or recycle the cable; An operating member, connected to the feeding mechanism and used to change the clamping state of the feeding mechanism on the cable; in: The total length of the extended cable is defined as the cable length L, the drum has an inner bottom surface forming the accommodating space, the area of ​​the inner bottom surface is S, and when the cable length L is in centimeters and the area of ​​the inner bottom surface S is in square centimeters, the ratio of the total length to the area of ​​the inner bottom surface L / S is greater than or equal to 4.

4.

18. The pipe cleaner of claim 17, wherein: The diameter of the inner bottom surface is a first diameter D, and the first diameter D is less than or equal to 14.5 cm.

19. The pipe cleaner of claim 17, wherein: The maximum outer diameter of the drum is a second diameter D1, and the second diameter D1 is less than or equal to 17 cm.

20. The pipe cleaner of claim 17, wherein: The cable is placed in the accommodating space in a coiled state, and the maximum coiling height that the cable can reach when coiled is H. When the cable length L of the cable is 762 cm, the maximum coiling height H is less than or equal to 7.5 cm.

21. A pipe cleaner comprising: The drum forms a receiving space; A motor drives the drum to rotate; The cables are at least partially stored in the accommodation space; A feeding mechanism, the feeding mechanism is connected in front of the drum and is used to feed or recycle the cable; The cable is also provided with a stop structure, when the cable is placed in the accommodation space in a coiled state and reaches the maximum When the coiling height is large, the stop structure prevents the cable from popping out.

22. The pipe cleaner according to claim 21, further comprising an operating member connected to the feeding mechanism, and a user operates the operating member to change a clamping state of the feeding mechanism on the cable.

23. The pipe cleaner of claim 22, wherein: The feeding mechanism includes a rotating body arranged around the cable, and the rotating body is driven by the operating member to move toward a direction approaching the cable or to move away from the cable.

24. The pipe cleaner of claim 22, wherein: The stop structure is driven to move by the operating member.

25. The pipe cleaner of claim 22, wherein: The stop structure is connected to the operating member, or the stop structure is arranged on the operating member.

26. The pipe cleaner of claim 22, wherein: The stop structure is a limit spring piece, and the limit spring piece is connected to the operating member. Movement of the operating member can drive the limit spring piece to be inserted into the cable, so that the cable cannot move in the front-rear direction.

27. The pipe cleaner of claim 26, wherein: One end of the limiting spring piece is provided with a clamping portion capable of clamping the cable.

28. The pipe cleaner of claim 23, wherein: A limiting protrusion is arranged on the cable, and the outer diameter of the limiting protrusion is larger than the maximum outer diameter that the rotating body is allowed to pass through.

29. The pipe cleaner of claim 28, wherein: The stop structure is the rotating body, and the rotating body limits the position of the limiting protrusion so that the cable cannot move in the front-rear direction.

30. The pipe cleaner according to any one of claims 21 to 29, wherein: The length of the cable beyond the front end surface of the feeding mechanism is a third length L3, and the third length L3 is less than or equal to 60 mm.

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