Pipeline cleaner

Abstract

The invention discloses a pipeline cleaner. The pipeline cleaner comprises a roller, a motor and a cable, the roller forms a containing space, the motor drives the roller to rotate, at least part of the cable is stored in the containing space, the total extending length of the cable is defined as the cable length L, the roller is provided with an inner bottom face forming the containing space, and the diameter of the inner bottom face is a first diameter D; when the length L of the cable and the first diameter D take centimeter as the unit, the ratio L / D2 of the length L of the cable to the square of the first diameter D is larger than or equal to 3.5. According to the pipeline cleaner, the ratio of the total extending length of the cable to the square of the first diameter of the inner bottom face is limited to be larger than or equal to 3.5, so that the utilization rate of the containing space in the roller is high, and meanwhile the whole pipeline cleaner is small and exquisite.

Description

Technical Field

[0001] The present application relates to an electric tool, in particular to a pipe cleaner. Background Art

[0002] 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.

[0003] The pipe cleaner includes a drum for cables, and the drum has a space for accommodating the cables. The space capacity of the drum of the existing pipe cleaner is much larger than the volume of the cables, which not only causes a waste of space, but also increases the volume of the drum, affecting the dynamic balance of the pipe cleaner.

[0004] This section provides background information related to the present application which is not necessarily prior art. Summary of the invention

[0005] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a pipe cleaner, which has a high utilization rate of the internal storage space of the pipe cleaner drum and a small volume.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] A pipe cleaner, comprising: a drum, forming a receiving space; a motor, driving the drum to rotate; a cable, at least partly stored in the receiving space;

[0008] 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.

[0009] In some embodiments, the first diameter D is less than or equal to 14.5 cm.

[0010] In some embodiments, 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.

[0011] In some embodiments, 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 is 762 cm, the maximum coiling height H is less than or equal to 7.5 cm.

[0012] In some embodiments, the pipe cleaner further includes 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 face of the handle and the front end face 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.

[0013] In some embodiments, the pipe cleaner also includes an operating member, which is connected to the feeding mechanism and is 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.

[0014] 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.

[0015] 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.

[0016] In some embodiments, a channel is formed in the feeding mechanism for the cable to pass through, 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 an initial state, the radial dimension in the channel is smaller than the radial dimension of the limiting protrusion.

[0017] In some embodiments, the effective volume of the accommodating space of the drum is defined as V1, V1=π×(D / 2) 2 ×H, H is the maximum coiling height of the cable when 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.

[0018] 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%.

[0019] 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%.

[0020] In some embodiments, 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.

[0021] 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.

[0022] 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 and used for a user to hold; a feeding mechanism connected to the front of the drum and used for feeding or retrieving the cable; an operating member connected to the feeding mechanism and used for changing the clamping state of the feeding mechanism on the cable; 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 area of ​​the inner bottom surface is S, when the cable length L is in centimeters and the area S of the inner bottom surface 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.

[0023] The benefits of this application are:

[0024] The pipe cleaner provided by the present application includes a drum, a motor and a cable, wherein the drum forms a storage space, the motor drives the drum to rotate, and the cable is at least partially stored in the storage space, wherein 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, 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 The pipe cleaner limits the ratio of the total length of the extended cable to the square of the first diameter of the inner bottom surface to be greater than or equal to 3.5, so that the utilization rate of the storage space inside the drum is high, and the pipe cleaner is small as a whole and easy to hold and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of a pipe cleaner provided in an embodiment of the present application;

[0026] Figure 2 is a cross-sectional view of a pipe cleaner provided by an embodiment of the present application;

[0027] Figure 3 is a cross-sectional view of a drum of a pipe cleaner provided in an embodiment of the present application;

[0028] Figure 4 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;

[0029] Figure 5 is a schematic diagram of a handle, a battery pack, and a support member of a pipe cleaner provided by an embodiment of the present application at a certain viewing angle;

[0030] Figure 6 This is a schematic diagram of a first embodiment of the pipe cleaner provided by the present application, which is provided with an extended guide tube;

[0031] Figure 7 This is a second schematic diagram of the pipe cleaner provided in an embodiment of the present application provided with an extended guide tube;

[0032] Figure 8 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;

[0033] Fig. 9 is a cross-sectional view of a partial structure of a pipe cleaner provided in an embodiment of the present application;

[0034] Fig.10 is a schematic diagram of the internal structure of a pipe cleaner provided in an embodiment of the present application;

[0035] Fig.11 is a schematic diagram of a cable of a pipe cleaner provided in an embodiment of the present application;

[0036] Fig.12 yes Fig.11 A cross-sectional view of the cable in use in a pipe cleaner.

[0037] Figures 1 to 12 middle:

[0038] 100. Pipe cleaner;

[0039] 110. handle; 120. roller; 121. accommodating space; 122. raised structure; 123. inner bottom surface; 124. inner top surface; 130. cable; 131. main body; 132. limiting raised portion; 140. motor; 141. motor shaft; 150. feeding mechanism; 151. channel; 152. rotating body; 153. front end surface; 160. operating member; 161. limiting spring piece; 162. elastic member; 170. battery pack; 180. supporting member; 190. extended guide tube; 191. straight tube; 192. connecting elbow. DETAILED DESCRIPTION

[0040] Before any embodiments of the 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 above drawings.

[0041] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0042] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0043] In the present 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, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0044] In the present application, it will be understood by those of ordinary skill 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 tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. 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).

[0045] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0046] 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 another element "upper" or "lower", but also indirectly connected to another 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, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0047] like Figures 1 to 5As shown, the present application provides a pipe cleaner 100, which can clean foreign objects in the pipe so that the pipe is restored to a smooth state. Specifically, the pipe cleaner 100 includes a drum 120, a motor 140 and a cable 130. Among them, the drum 120 is a main component for accommodating the cable 130, and a accommodating space 121 is formed in the drum 120, and the drum 120 has an inner bottom surface 123 and an inner top surface 124 forming the accommodating space 121, and the inner bottom surface 123 and the inner top surface 124 are spaced and arranged relatively in the front and rear directions of the pipe cleaner 100, and the diameter of the inner bottom surface 123 is defined as a first diameter D. The motor 140 is connected to the rear of the drum 120 and can drive the drum 120 to rotate around an axis. The cable 130 is at least partially stored in the accommodating space 121, and the portion of the cable 130 placed in the accommodating space 121 is generally in a coiled state. Driven by the motor 140, the drum 120 connected to the motor 140 rotates around its central axis. As the drum 120 rotates, the cable 130 can switch from a coiled state to an extended state or from an extended state to a coiled state. The total length of the cable 130 when extended is defined as the cable length L.

[0048] 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 the cable length L and the first diameter D are both in centimeters. When any one of the cable length L and the first diameter D uses a unit other than centimeters, it must be converted into centimeters for calculation. The pipe cleaner 100 limits the ratio of the cable length L extended from 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, so that the utilization rate of the accommodation space 121 inside the drum 120 is high, and the pipe cleaner 100 is overall compact and easy to hold and operate.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] like Figure 3 As shown, the maximum outer diameter of the drum 120 is defined as the second diameter D1, the second diameter D1 is greater than the first diameter D, and the second diameter D1 is less than or equal to 17 cm. Further, in some embodiments, the second diameter D1 is less than or equal to 16.5 cm. Further, in some embodiments, the second diameter D1 is less than or equal to 16 cm.

[0053] 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.

[0054] Continue to refer to Figure 3 As shown, at least part of the cable 130 is coiled and placed in the accommodation space 121. When the cable length L of the cable 130 is 762 cm, the maximum coiling height that the cable 130 can reach when coiled is H, and the maximum coiling height H 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 coiling height H is less than or equal to 7 cm.

[0055] In a specific embodiment, the maximum coiling height H is 6.7 cm; in a specific embodiment, the maximum coiling height H is 6.5 cm; in a specific embodiment, the maximum coiling height H is 6.3 cm; in a specific embodiment, the maximum coiling height H is 6 cm. It should be noted that the maximum coiling height H involved in this application refers to the cable 130 with a cable length L of 762 cm.

[0056] Continue to refer to Figure 3As shown, the overall height of the accommodating space 121 is H1, that is, the distance from the end surface of the drum 120 at the closing position 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 about 8.5 cm. In some embodiments, the overall height H1 is about 9.5 cm. The overall height H1 refers to the height from the inner bottom surface 123 inside the drum 120 to the closing position of the drum 120 extending to the operating member 160.

[0057] The effective volume of the accommodating space 121 of the drum 120 is defined as V1, V1 = π × (D / 2) 2 ×H, H is the maximum coiling height of the cable 130 when it is 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 limitations on this ratio below must meet the unit requirements set 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.

[0058] 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.

[0059] 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, that is, 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 forth in this paragraph.

[0060] In some embodiments, the ratio of the total length of the cable 130 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 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 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 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 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 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 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 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 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 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 here is in centimeters, and the area of ​​the inner bottom surface 123 is in square centimeters.

[0061] 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.

[0062] The total volume V2 of the accommodating space 121 of the drum 120, 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 of H1.

[0063] In some embodiments, the 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%.

[0064] 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%.

[0065] In one embodiment, the ratio of the cable length L to the square of the first diameter D is about 3.8, the first diameter D is 13.7 cm, the second diameter D1 is 16 cm, the maximum coiling height H is about 6.5 cm, the ratio of the cable length L to the effective volume V1 is about 0.8, and the ratio of the cable length L to the area of ​​the inner bottom surface 123 is about 5.1. The various parameters described in this paragraph are subject to the unit requirements introduced above and will not be repeated here.

[0066] Continue to refer to Figure 1 As shown, the pipe cleaner 100 also 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, and the feeding mechanism 150 is connected to the front of the drum 120 and is used to feed or recycle the cable 130. The feeding mechanism 150 includes a rotating body 152 arranged around the cable 130, and the rotating body 152 is driven to move in a direction close to the cable 130 or in a direction away from the cable 130. The operating member 160 drives the rotating body 152 to move. As for the specific structure of the feeding mechanism 150, it is the prior art and will not be described in detail here. Figure 2 As shown, the distance between the rear end surface of the handle 110 and the front end surface 153 of the feeding mechanism 150 is the entire length L0 of the pipe cleaner 100 , and the entire length L0 is less than or equal to 37 cm.

[0067] In a specific embodiment, the length L0 of the whole machine is 36.5 cm; in a specific embodiment, the length L0 of the whole machine is 36 cm; in a specific embodiment, the length L0 of the whole machine is 35 cm.

[0068] Continue to refer to Figure 1 As shown, the pipe cleaner 100 further includes an operating member 160, which is connected to the feeding mechanism 150 and is used to change the clamping state of the feeding mechanism 150 on the cable 130. In some embodiments, the operating member 160 is a handle, and by pressing the handle to make the rotating body 152 approach or move away from the cable 130, the feeding mechanism 150 can clamp the cable 130 or disengage from the cable 130. The motor can drive the feeding mechanism 150 to continuously clamp the cable 130 and move the cable 130 toward the inside of the drum 120, so that the cable 130 is coiled in the drum 120.

[0069] like Figures 8 to 10 As shown, a channel 151 is formed in the feeding mechanism 150 for the cable 130 to pass through, and the radial dimension of the channel 151 can be changed by operating the operating member 160. In some embodiments, the operating member 160 includes a first end and a second end that are arranged opposite to each other, the first end is rotatably connected to the feeding mechanism 150, and the second end is a pressing end, and an elastic member 162 is arranged between the middle part of the operating member 160 and the feeding mechanism 150.

[0070] When the cable 130 is completely recovered into the accommodating space 121 of the drum 120, since the cable 130 is tightly coiled in the accommodating space 121, the cable 130 has a tendency to pop out of the front end surface 153. In order to overcome this tendency, the pipe cleaner 100 provided by the present application further includes a stop structure. When the cable 130 is coiled in the accommodating 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.

[0071] 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.

[0072] In some embodiments, the stop structure is driven to move by the operating member 160 .

[0073] 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.

[0074] 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.

[0075] The arrangement of the elastic member 162 and the limiting spring sheet 161 makes the operating member 160 form a seesaw structure. When the operating member 160 is in a free state without being pressed, the pressing end of the operating member 160 is lifted up by the elastic member 162, so that the limiting spring sheet 161 is stuck on the cable 130, and the cable 130 is placed in the clamping part of the limiting spring sheet 161; and when the pressing end of the operating member 160 is pressed down by an external force, that is, when the pipe cleaner 100 needs to recycle the cable 130 or release the cable 130, the limiting spring sheet 161 is lifted up, and the limiting spring sheet 161 releases the clamping of the cable 130, so that the cable 130 can freely enter and exit the pipe cleaner. When the user releases the operating member 160 after completing the recovery or output of the cable 130, the limiting spring sheet 161 resumes the state of being stuck on the cable 130 under the elastic force of the elastic member 162, thereby preventing the cable 130 from accidentally detaching. In addition, the setting of the limiting spring piece 161 can also prevent a small section of the front end from popping out after the cable 130 is completely retracted, thereby improving the user experience.

[0076] like Fig.11 and Fig.12 As shown, 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, and when the operating member 160 is in the initial state, the radial dimension in 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 be allowed to pass.

[0077] In one embodiment, the stop structure is a rotating body 152 , and the rotating body 152 limits the position of the limiting protrusion 132 , so that the cable 130 cannot move in the front-to-back direction.

[0078] It should be noted that when the operating member 160 is in a free state, the maximum outer diameter of the cable 130 that the channel 151 allows to pass through is 7 mm, and the outer diameter of the limiting protrusion 132 at the front of the cable 130 is 7.2 mm-7.5 mm. Although the outer diameter of the limiting protrusion 132 is larger than the outer diameter of the maximum cable 130 that the feeding mechanism 150 allows to pass through, the cable 130 is wound in circles, and under the drive of the motor 140, a slight interference fit can be passed through the opening to enter the feeding mechanism 150. When the cable 130 is recovered, after the limiting protrusion 132 passes over the opening of the feeding mechanism 150, because the outer diameter of the limiting protrusion 132 is larger than the maximum outer diameter that the opening of the feeding mechanism 150 allows to pass through, it is ensured that if the cable 130 has a tendency to pop out, it will not pop out because the limiting protrusion 132 is stuck in the feeding mechanism 150.

[0079] like Fig. 9As shown, when the cable 130 is coiled in the accommodation space 121 and coiled to the maximum coiling height, the length of the cable 130 beyond the front end surface 153 of the feeding mechanism 150 is the third length L3, and the third length L3 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 about 35 mm.

[0080] Continue to refer to Figure 2 As shown, 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.

[0081] 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.

[0082] Continue to refer to Figure 2 As shown, 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.

[0083] 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.

[0084] Continue to refer to Figure 2 , Figure 4 and Figure 5 As shown, the distance between the inner bottom surface 123 and the inner top surface 124 of the accommodating space 121 is the second distance B, the drum 120 further includes a protruding structure 122 protruding from the inner bottom surface 123 and extending toward the inner top surface 124, the protruding structure 122 is used to install the motor 140, the motor shaft 141 of the motor 140 is fixedly connected to the top of the protruding structure 122, and the distance between the end surface of the protruding structure 122 away from the inner bottom surface 123 and the inner top surface 124 is the 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%. When the ratio of A to B is smaller, it means that more structures of the motor 140 can penetrate into the drum 120, and at this time the length of the entire pipe cleaner 100 will be significantly shortened, making the pipe cleaner 100 more compact.

[0085] In some embodiments, a ratio of the first distance A to the second distance B is approximately 28%.

[0086] It should be noted that the range of ratios disclosed in this application refers to the range of numerical values ​​of the ratios obtained under specific units.

[0087] 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, which is connected to the front end of the feeding 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 unclogged pipe can be shortened, avoiding the situation where the cable 130 is entangled due to the large distance, thereby causing the dredging work 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 touch the toilet sewage. Of course, the use scenario of the pipe cleaner 100 provided with the extended guide tube 190 is not limited to the dredging of the toilet, but can also be extended to the working condition where the distance from the front end of the pipe cleaner 100 to the dredged pipe is greater than or equal to 15 cm.

[0088] In some embodiments, Figure 6 As shown, the extended guide tube 190 is a straight tube 191. The extended guide tube 190 of the straight tube 191 structure is simple in structure and low in cost.

[0089] In some parallel embodiments, the extended guide tube 190 includes at least two straight tubes 191 and a connecting elbow 192, and the connecting elbow 192 is connected between two adjacent straight tubes 191, so that the two adjacent straight tubes 191 are connected at an angle. Figure 7 As shown, the extended guide pipe 190 is generally "L" shaped, and includes two straight pipes 191 and a connecting elbow 192 connected between two branch pipes and having a 90° corner. The extended guide pipe 190 of the non-branch pipe structure can cope with more severe working conditions.

[0090] 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, etc.

[0091] 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.

[0092] Continue to refer to Figure 1 As shown, the pipe cleaner 100 further includes a battery pack 170 , which is detachably connected to the bottom of the handle 110 . The detachable connection method is not limited to sliding connection. The battery pack 170 is connected to the motor 140 and is used to power the motor 140 .

[0093] Continue to refer to Figure 5 As shown, the pipe cleaner 100 further includes a support member 180, which is located at the lower part of the pipe cleaner 100. When a user holds the pipe cleaner 100, the support member 180 can be supported on a support surface provided by an external device or directly placed on the ground, thereby reducing the gravity of the pipe cleaner 100 borne by the user. In some embodiments, the support member 180 is a support frame formed by a plurality of rods.

[0094] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A pipe cleaner comprising: A drum (120) forms a receiving space (121); A motor (140) drives the drum (120) to rotate; A cable (130) is at least partially stored in the accommodation space (121); Features: The total length of the cable (130) when extended is defined as the cable length L, the drum (120) has an inner bottom surface (123) forming the accommodating space (121), the diameter of the inner bottom surface (123) 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, characterized in that The maximum outer diameter of the drum (120) 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, characterized in that The cable (130) is placed in the accommodating space (121) in a coiled state, and the maximum coiling height that the cable (130) 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, characterized in that The pipe cleaner further comprises a handle (110) and a feeding mechanism (150), wherein the handle (110) is connected to the rear of the drum (120) and is used for a user to hold, and the feeding mechanism (150) is connected to the front of the drum (120) and is used for feeding or retrieving the cable (130), and the distance between the rear end surface of the handle (110) and the front end surface (153) of the feeding mechanism (150) 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, characterized in that The pipe cleaner further comprises an operating member (160), wherein the operating member (160) is connected to the feeding mechanism (150) and is used to change the clamping state of the feeding mechanism (150) on the cable (130), and 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.

7. The pipe cleaner according to claim 5, characterized in that The distance between the front end surface (153) of the feeding mechanism (150) and the rear end surface of the roller (120) 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, characterized in that The operating member (160) 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 (150), the second end is a pressing end, and an elastic member (162) is arranged between the middle part of the operating member (160) and the feeding mechanism (150); The pipe cleaner further comprises a limiting spring piece (161), one end of which is fixedly connected to the first end, and the other end of which is provided with a clamping portion capable of clamping the cable (130).

9. The pipe cleaner according to claim 6, characterized in that A channel (151) for the cable (130) to pass through is formed in the feeding mechanism (150), and the radial dimension of the channel (151) can be changed by operating the operating member (160); The cable (130) comprises a main body (131) and a limiting protrusion (132), the radial dimension of the limiting protrusion (132) being larger than the radial dimension of the main body (131), and when the operating member (160) is in an initial state, the radial dimension in the channel (151) is smaller than the radial dimension of the limiting protrusion (132).

10. The pipe cleaner according to claim 1, characterized in that The effective volume of the accommodating space (121) of the drum (120) is defined as V1, V1 = π × (D / 2) 2 ×H, H is the maximum coiling height of the cable (130) when coiled in the accommodation space, and 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 according to claim 10, characterized in that The total volume V2 of the accommodating space (121) of the drum (120), 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 according to claim 1, characterized in that The accommodating space (121) comprises an inner bottom surface (123) and an inner top surface (124), the distance between the inner bottom surface (123) and the inner top surface (124) being a second distance B, the drum (120) further comprising a protruding structure (122) protruding from the inner bottom surface (123) and extending toward the inner top surface (124), the protruding structure (122) being used for mounting the motor (140), the distance between an end surface of the protruding structure (122) away from the inner bottom surface (123) and the inner top surface (124) being a first distance A, wherein a 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 according to claim 1, characterized in that The pipe cleaner further comprises an extended guide tube (190) and a feeding mechanism (150), wherein the feeding mechanism (150) is connected in front of the drum (120) and is used to feed or recycle the cable (130), and the extended guide tube (190) is connected to the front end of the feeding mechanism (150) and is used to guide the cable (130).

14. The pipe cleaner according to claim 13, characterized in that The extended guide tube (190) is a straight tube structure; Alternatively, the extended guide tube (190) comprises at least two straight tubes (191) and a connecting elbow (192), and the connecting elbow (192) is connected between two adjacent straight tubes (191), so that the two adjacent straight tubes (191) are connected at an angle.

15. A pipe cleaner comprising: A drum (120) forms a receiving space (121); A motor (140) drives the drum (120) to rotate; A cable (130) is at least partially stored in the accommodation space (121); a handle (110), the handle (110) being connected to the drum (120) and being held by a user; A feeding mechanism (150), the feeding mechanism (150) being connected in front of the drum (120) and used for feeding or retrieving the cable (130); an operating member (160) connected to the feeding mechanism (150) and used to change the clamping state of the feeding mechanism (150) on the cable (130); Features: The total length of the cable (130) when extended is defined as the cable length L, the drum (120) has an inner bottom surface (123) forming the accommodating space (121), the area of ​​the inner bottom surface (123) is S, and when the cable length L is in centimeters and the area S of the inner bottom surface (123) is in square centimeters, the ratio L / S of the total length to the area of ​​the inner bottom surface (123) is greater than or equal to 4.4.

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