Cable winding and unwinding length measuring device and pipeline detection equipment

Abstract

The utility model discloses a cable take-up and pay-off length measuring device and pipeline detection equipment, and the measuring device comprises a housing, the side wall of which is provided with a wire outlet hole in a penetrating manner; the measuring assembly comprises a base, a driving gear, a driven gear, a connecting column and a distance calculation module; the driving gear and the driven gear are rotationally arranged at the top of the base, the driven gear is meshed with the driving gear, the driven gear is in signal transmission connection with the distance calculation module, and the connecting column is fixedly arranged on the driving gear; the cable take-up and pay-off disc is detachably arranged on the connecting column; a cable is arranged in the cable take-up and pay-off disc, and one end of the cable is used for being connected with the signal connecting end. The distance calculation module calculates the actual length of the cable actually paid off by the cable take-up and pay-off disc according to the number of rotation turns of the driven gear, so that the distance of the camera extending into the pipeline is obtained, and the operation process of a user is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field, especially a kind of cable length of reeling and measuring device and pipeline detection equipment. BACKGROUND

[0002] Camera is connected to one end of cable, when the inside of pipeline needs to be detected, cable needs to be continuously stretched out from cable reeling device to the outside, so that camera can be stretched into the inside of pipeline to shoot.

[0003] In order to obtain the specific length value of camera assembly stretched into the inside of pipeline, the existing scheme is to mark distance value on the outside of cable, and the user needs to pay attention to distance mark value on transmission cable during the process of stretching camera into the inside of pipeline, so as to obtain the distance of camera stretched into pipeline, which leads to the complexity of user operation. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiency of prior art scheme, the utility model embodiment provides a kind of cable length of reeling and measuring device and pipeline detection equipment.

[0005] The utility model solves the technical scheme that it adopts:

[0006] First, the utility model embodiment provides a kind of cable length of reeling and measuring device, and the measuring device includes:

[0007] Shell, the side wall of the shell is through with outlet hole;

[0008] Measuring assembly, the measuring assembly is set in the shell, and the measuring assembly includes base, driving gear, driven gear, connecting column and distance calculation module;The driving gear and the driven gear are rotationally arranged on the top of the base, the driven gear is engaged with the driving gear, the driven gear is signal transmission connection with the distance calculation module, and the connecting column is fixedly arranged on the top of the driving gear;

[0009] Cable reel, the cable reel is detachably arranged on the connecting column;The cable reel is provided with cable that can be stretched out or retracted, and one end of the cable is used to connect signal connection end.

[0010] As a preferred technical scheme of the utility model, the cable reel includes reel frame and connecting part arranged on the reel frame, and the connecting part is sleeved on the connecting column;The reel frame is formed with accommodating cavity, and the cable is wound on the cavity wall of the accommodating cavity;The reel frame is through with first reel hole.

[0011] As a preferred technical scheme of the utility model, the first wire disc hole is provided with a clamping assembly for preventing the signal connection end from extending into the accommodating cavity.

[0012] As a preferred technical scheme of the utility model, the clamping assembly comprises a first clamping part and a second clamping part, the first clamping part is penetrated by a second wire disc hole, and the second clamping part is detachably arranged on the top of the first clamping part and used for abutting against the signal connection end.

[0013] As a preferred technical scheme of the utility model, a connecting cavity with an opening is formed in the connecting part in a hollow manner, and a first straight surface is formed on the cavity wall of the connecting cavity; and a second straight surface is formed on the outer side of the connecting column and used for abutting against the first straight surface.

[0014] As a preferred technical scheme of the utility model, the wire disc frame comprises a first wire disc and a second wire disc which is detachably connected with the first wire disc; and the accommodating cavity is located between the first wire disc and the second wire disc.

[0015] As a preferred technical scheme of the utility model, the connecting column is detachably provided with a locking cover for locking or releasing the cable winding and unwinding disc.

[0016] As a preferred technical scheme of the utility model, a first screw thread is arranged on the outer side wall of the connecting column, and a second screw thread is arranged on the locking cover and matched with the first screw thread.

[0017] As a preferred technical scheme of the utility model, the utility model further comprises a rolling roller assembly, the rolling roller assembly is arranged in the shell and located beside the measuring assembly, and the cable is arranged in the rolling roller assembly.

[0018] The rolling roller assembly comprises two rolling rollers which are rotatably arranged on the base, and the cable is clamped between the two rolling rollers.

[0019] In the second aspect, the utility model also provides a pipeline detection device.

[0020] The cable winding and unwinding length measuring device in any one of the above first aspects;

[0021] A camera is connected with one end of the cable away from the signal connection end.

[0022] A display is arranged on the outer side of the shell and connected with the signal connection end.

[0023] Compared with the prior art, the utility model has the advantages of:

[0024] When the cable reel releases the cable outward, the cable reel rotates along its circumference, which can synchronously push the connecting column to rotate, and when the connecting column rotates, the driving gear rotates, and since the driving gear meshes with the driven gear, the side tooth block of the driving gear can be used to push the side tooth block of the driven gear, so that the driven gear rotates along its circumference, and when the driven gear rotates, the distance calculation module calculates the actual length of the cable released by the cable reel according to the number of rotations of the driven gear, so as to obtain the distance of the camera extending into the pipeline, which simplifies the operation process of the user.

[0025] When the camera extends into the pipeline, the cable is released through the rotation of the cable reel, and since the receiving end of the display is connected with the signal connection end through the cable, the actual length of the cable released by the cable reel can be viewed on the display in real time, so as to obtain the distance of the camera extending into the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 is a structural diagram of the cable release length measuring device of the embodiment of the present application.

[0028] Figure 2 is a structural explosion diagram of the shell and the cable reel of the embodiment of the present application.

[0029] Figure 3 is a structural diagram of the measuring assembly and the rolling roller assembly of the embodiment of the present application.

[0030] Figure 4 is a structural diagram of the wire reel frame of the embodiment of the present application.

[0031] Figure 5 is a structural diagram of the clamping assembly of the embodiment of the present application.

[0032] Figure 6 is a structural explosion diagram of the first wire reel and the second wire reel of the embodiment of the present application.

[0033] Figure 7 is a structural diagram of the pipeline detection device of the embodiment of the present application.

[0034] REFERENCE NUMERALS

[0035] 1. A cable length measurement device; 11. A housing; 12. A measurement assembly; 121. A base; 122. A driving gear; 123. A driven gear; 124. A connecting column; 1241. A second straight surface; 13. A cable reel; 131. A cable; 132. A signal connection end; 133. A reel frame; 1331. A first reel; 1332. A second reel; 1333. A first reel hole; 134. A connecting part; 1341. A first straight surface; 14. A clamping assembly; 141. A first clamping part; 1411. A second reel hole; 142. A second clamping part; 15. A locking cover; 16. A rolling roller assembly; 161. A rolling roller;

[0036] 2. A pipeline detection device; 21. A camera; 22. A display. DETAILED DESCRIPTION

[0037] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments.

[0038] It should be understood that the specific embodiments described herein merely serve to explain the present application and do not limit the present application.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element.

[0040] When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0042] In addition, the terms "first", "second", "third", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0043] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0044] In order to solve the technical problem that the existing technology causes the complexity of the operation of the user to pay attention to the distance mark value on the transmission cable 131 while the camera 21 is extended into the pipeline, the utility model embodiment provides a cable winding and unwinding length measuring device 1 and a pipeline detection equipment 2.

[0045] The utility model embodiment provides a cable winding and unwinding length measuring device 1, and the specific structure of the cable winding and unwinding length measuring device 1 is shown in the accompanying drawings. Figures 1-6 The specific structure of the cable winding and unwinding length measuring device 1 comprises a shell 11, a measuring assembly 12 and a cable winding and unwinding disc 13.

[0046] The side wall of the shell 11 is through a wire outlet hole.

[0047] Specifically, the shell 11 is used for accommodating the measuring assembly 12 and the cable winding and unwinding disc 13 and other key components. The side wall of the shell 11 is through a wire outlet hole which is connected with the inside of the shell 11 and is used for passing the cable 131 and the camera 21. Specifically, if the camera 21 needs to be extended into the pipeline, the camera 21 is extended outwards from the inside of the shell 11 through the wire outlet hole, and at the same time, the cable 131 is also extended outwards through the wire outlet hole until the camera 21 is extended to the specified distance in the pipeline.

[0048] According to the specific structure of the cable winding and unwinding length measuring device 1 shown in the accompanying drawings, Figures 2-3 The measuring assembly 12 is arranged in the shell 11, and the measuring assembly 12 comprises a base 121, a driving gear 122, a driven gear 123, a connecting column 124 and a distance calculation module; the driving gear 122 and the driven gear 123 are both rotationally arranged on the top of the base 121, the driven gear 123 is engaged with the driving gear 122, the driven gear 123 is signal transmission connected with the distance calculation module, and the connecting column 124 is fixedly arranged on the top of the driving gear 122.

[0049] Specifically, since the driven gear 123 is signal transmission connected with the distance calculation module, when the driven gear 123 rotates, the distance calculation module can calculate the distance of the camera 21 extended into the pipeline according to the number of revolutions of the driven gear 123, and the specific principle is as follows:

[0050] The cable reel 13 is provided with a connecting column 124, when the cable reel 13 rotates, the connecting column 124 can be synchronously pushed to rotate, when the connecting column 124 rotates, the driving gear 122 is driven to rotate, since the driving gear 122 is engaged with the driven gear 123, thus the side tooth block of the driving gear 122 can be used to push the side tooth block of the driven gear 123, so that the driven gear 123 rotates along the circumference, when the driven gear 123 rotates, the distance calculation module is used to obtain the actual length of the cable 131 actually released by the cable reel 13 according to the rotation number of the driven gear 123.

[0051] In the above embodiment, since the rotation of the driving gear 122 and the rotation of the cable reel 13 form a mechanical connection, when the cable reel rotates to a certain number of turns, the driven gear 123 is also driven to rotate at the same number of turns by the driving gear 122, thus the actual length of the cable 131 actually released by the cable reel 13 can be calculated by multiplying the circumference of the driven gear 123 by the number of turns.

[0052] According to the calculation of the total length of the circumference of rotation: if the number of turns of the gear is n turns, thus the length of the cable 131 actually released is C x n.

[0053] For example, assuming that the diameter of the driven gear 123 is 30mm, if the number of turns of the driven gear 123 is 10 turns, the following calculation scheme is obtained:

[0054] The circumference of the driven gear 123 is π x 30mm ≈ 3.14 x 30mm = 94.2mm, that is, the circumference of the driven gear 123 is 94.2mm.

[0055] Therefore, the length of the cable 131 actually released is 94.2mm x 10 = 942mm, that is, the length of the cable 131 actually released is 942mm, and it can also be understood that the distance of the camera 21 extending into the pipeline is 942mm.

[0056] It can be understood that the distance calculation module of the embodiment of the utility model is an optical encoder, which measures the position and speed of rotation by detecting the change of light reflection and reception on the internal optical axis, the optical encoder internally contains an annular encoder disc, the annular encoder disc is engraved with equidistant scales, thus when the driven gear 123 rotates, the light reflection position on the annular encoder disc changes, at this time the change can be sensed and converted into an electronic signal representing the number and direction of rotation.

[0057] According to Figures 4-5As shown, the cable reel 13 is detachably arranged outside the connecting column 124; the cable reel 13 is internally provided with a cable 131 which can be released or retracted, one end of the cable 131 is used to connect the signal connection end 132.

[0058] Specifically, after the cable 131 is released, the entire cable reel 13 is rotated along its circumference, since the cable reel 13 is fixed to the connecting column 124, when the cable reel 13 rotates, it can drive the driving gear 122 to rotate through the connecting column 124.

[0059] It should be noted that since different cable reels 13 have different types of cables 131 inside, the entire cable reel 13 can be replaced according to actual use requirements. If replacement is needed, the cable reel 13 can be detached from the connecting column 124 to separate the cable reel 13 from the connecting column 124, and then the cable reel 13 with other types of cables 131 can be reassembled on the connecting column 124, or another cable reel 13 can be assembled on the connecting column 124 to fix the entire cable reel 13.

[0060] According to Figures 3-4 As shown, in some specific embodiments, the cable reel 13 includes a reel frame 133 and a connecting portion 134 arranged on the reel frame 133, the connecting portion 134 is sleeved outside the connecting column 124; the reel frame 133 forms an accommodating cavity inside, the cable 131 is wound on the cavity wall of the accommodating cavity; the reel frame 133 penetrates a first reel hole 1333.

[0061] Specifically, the reel frame 133 is used to accommodate and protect the cable 131, the frame has an accommodating cavity inside, which can be used to provide sufficient bending space for the cable 131, thereby playing a role in accommodating the cable 131, by winding the cable 131 on the cavity wall of the accommodating cavity, it can avoid friction or entanglement between the cable 131 and other components, and also prevent the cable 131 from being excessively stretched or squeezed. When the cable 131 is released outward and continuously released, the cable 131 wound on the cavity wall of the accommodating cavity still maintains a certain tension, that is, the cable 131 inside the accommodating cavity maintains a certain winding state, as the cable is released to the outside, the tension generated by the cable 131 inside can act on the reel frame 133, through the tension, a pushing force is generated on the entire reel frame, it can be understood that when the cable 131 is released outward, the friction force generated between the outside of the cable 131 and the cavity wall of the accommodating cavity is used to push the reel frame 133 to rotate, since the reel frame 133 is sleeved on the connecting column 124 through the connecting portion 134, through the pushing force, the reel frame 133 can be pushed to start rotating.

[0062] According to Figure 5As shown, the wire coil frame 133 is provided with a first wire coil hole 1333, and the end of the cable 131 connected with the signal connecting end 132 is passed out of the wire coil frame 133 through the first wire coil hole 1333, and the signal connecting end 132 is used for electrical signal transmission connection with the display screen.

[0063] According to Figures 5-6 As shown in further embodiments, the first wire coil hole 1333 is provided with a clamping assembly 14 for preventing the signal connecting end 132 from extending into the accommodating cavity.

[0064] Specifically, since the signal connecting end 132 is relatively fragile, if pulled into the accommodating cavity of the wire coil frame 133, it is easy to be damaged by extrusion, friction or winding, etc., thus causing signal interruption or equipment damage, therefore, the clamping assembly 14 effectively limits the signal connecting end 132 outside the accommodating cavity, preventing the signal connecting end 132 from extending into the accommodating cavity.

[0065] According to Figure 5 Specifically, the clamping assembly 14 includes a first clamping part 141 and a second clamping part 142, the first clamping part 141 is provided with a second wire coil hole 1332, and the cable 131 is arranged in the second wire coil hole 1332, and the second clamping part 142 is detachably arranged on the top of the first clamping part 141 and used for abutting against the signal connecting end 132.

[0066] Specifically, when the second clamping part 142 is assembled on the top of the first clamping part 141, the diameter of the second wire coil hole 1332 is smaller than the signal connecting end 132, so that the signal connecting end 132 is clamped outside the accommodating cavity and cannot extend into the accommodating cavity through the second wire coil hole 1332. By arranging the second clamping part 142 to be detachably arranged on the top of the first clamping part 141, the signal connecting end 132 can be prevented from entering the interior of the accommodating cavity due to external force, ensuring the stability of signal transmission. At the same time, since the second clamping part 142 is detachable, when it is necessary to replace the cable 131 in the wire coil frame 133, the second clamping part 142 can be detached from the top of the first clamping part 141. Since the outer diameter of the first wire coil hole 1333 is larger than the signal connecting end 132, the signal connecting end 132 can bypass the second wire coil hole 1332 to extend into the interior of the accommodating cavity and escape out of the accommodating cavity from the opening of the wire coil frame 133, which facilitates the replacement of the cable 131. After replacing the cable 131 of other types, the signal connecting end 132 connected with one end of the cable 131 is passed out of the accommodating cavity through the first wire coil hole 1333, and then the second clamping part 142 is assembled on the top of the first clamping part 141, so that part of the cable 131 is located in the second wire coil hole 1332 and is abutted against the signal connecting end 132 by the second clamping part 142, preventing the signal connecting end 132 from extending into the accommodating cavity.

[0067] It can be understood that the top of the first clamping portion 141 is provided with a first threaded hole, and the second clamping portion 142 is provided with a second threaded hole penetrating through, and a bolt is inserted into the second threaded hole and the first threaded hole at the same time, so that the second clamping portion 142 is fixed to the top of the first clamping portion 141.

[0068] According to Figures 3-4 As shown in the drawings, in some other embodiments, the connecting portion 134 is hollowly formed with a connecting cavity provided with an opening, and the cavity wall of the connecting cavity is formed with a first flat surface 1341; the outer side of the connecting column 124 is formed with a second flat surface 1241 used for abutting with the first flat surface 1341.

[0069] Specifically, when the connecting column 124 is inserted into the connecting cavity of the connecting portion 134, the first flat surface 1341 abuts with the second flat surface 1241, and the abutment between the two can realize torque transmission, so that when the cable winding and unwinding disc 13 rotates, it can drive the driving gear 122 to rotate through the connecting column 124, and specifically, due to the abutment between the first flat surface 1341 and the second flat surface 1241, the continuity and directionality of rotation can be maintained, and when the cable winding and unwinding disc 13 starts to rotate, the force generated is gradually transmitted to the driving gear 122 through the abutment between the second flat surface 1241 of the connecting column 124 and the second flat surface 1241, so as to realize the rotation of the driving gear 122.

[0070] In the foregoing embodiments, it needs to be supplemented that the cavity wall of the connecting cavity is symmetrically formed with two first flat surfaces 1341, and correspondingly, the outer side of the connecting column 124 is formed with two second flat surfaces 1241 respectively abutting with the two first flat surfaces 1341, which further improves the contact area between the cavity wall of the connecting cavity and the outer wall of the connecting column 124, so that they can be closely matched, and thus when the cable winding and unwinding disc 13 rotates, the power can be effectively transmitted to the connecting column 124.

[0071] According to Figure 6 As shown in the drawings, in some other embodiments, the wire disc frame 133 includes a first wire disc 1331 and a second wire disc 1332 detachably connected with the first wire disc 1331; and the accommodating cavity is located between the first wire disc 1331 and the second wire disc 1332.

[0072] Specifically, since the first wire reel 1331 and the second wire reel 1332 are detachably connected, it is convenient for the user to detach and take out the cable 131 located in the accommodating cavity and replace other types of cable 131. For example, when it is necessary to replace the cable 131, only the first wire reel 1331 is detached from the second wire reel 1332, so that the first wire reel 1331 is separated from the second wire reel 1332, then the cable 131 can be taken out, then the other type of cable 131 is placed in the side wall of the second wire reel 1332, and then the first wire reel 1331 is connected with the second wire reel 1332, and the cable 131 is wound around the cavity wall of the accommodating cavity between the first wire reel 1331 and the second wire reel 1332, and the replacement of the cable 131 is completed.

[0073] It can be understood that the first wire reel 1331 and the second wire reel 1332 of the embodiment of the utility model can be detachably connected by mechanical connection modes such as bolts or buckles, and the specific mode is not limited here,

[0074] According to Figures 2-3 As shown in the figure, in some specific embodiments, the connecting column 124 is detachably provided with a locking cover 15 for locking or releasing the cable winding reel 13.

[0075] Specifically, the wire reel frame 133 (cable winding reel 13) is firmly locked by the locking cover 15, so that the condition that the entire wire reel frame 133 is easily accidentally detached is avoided, and the position of the wire reel frame 133 is effectively fixed, and the condition that the entire wire reel frame 133 is easily shaken during rotation is also avoided. If it is necessary to detach and take out the entire wire reel frame 133, the locking cover 15 can be detached and taken out from the connecting column 124. Since the locking cover 15 cannot lock the wire reel frame 133 at this time, the wire reel frame 133 can be separated from the connecting column 124 at this time.

[0076] In the above embodiment, more specifically, the outer side wall of the connecting column 124 is provided with a first thread, and the locking cover 15 is provided with a second thread matched with the first thread.

[0077] Specifically, the first thread of the connecting column 124 is screwed with the second thread of the locking cover 15, so that the locking cover 15 can be firmly arranged on the connecting column 124, and the locking cover 15 can be used to lock or unlock the wire frame 133. For example, when the wire frame 133 needs to be locked, the locking cover 15 is screwed on the outer wall of the connecting column 124, and the first thread and the second thread are engaged with each other, so that the locking cover 15 applies pressure to the wire frame 133, and the connecting part 134 of the wire frame 133 cannot be separated from the connecting column 124, so that the wire frame 133 is effectively locked, and the wire frame 133 cannot be moved or separated accidentally during use. When the wire frame 133 needs to be released, the locking cover 15 is loosened, the thread connection between the locking cover 15 and the connecting column 124 is loosened, and the locking cover 15 is rotated to be separated from the connecting column 124. At this time, the wire frame 133 can be freely moved, and the connecting part 134 of the wire frame 133 can be separated from the connecting column 124. The first thread of the connecting column 124 and the second thread of the locking cover 15 are matched, the wire frame 133 can be reliably locked and quickly released, and the whole operation process is relatively convenient.

[0078] According to Figure 3 As shown in the drawings, the utility model embodiment still includes rolling roller assembly 16, rolling roller assembly 16 is arranged in the shell 11 and is located the side of measuring assembly 12, cable 131 is worn in rolling roller assembly 16;Rolling roller assembly 16 includes two rolling rollers 161 that are rotatably arranged in the base 121;Cable 131 is clamped between the two rolling rollers 161.

[0079] Specifically, the cable 131 is clamped between the two rolling rollers 161 by the two rolling rollers 161 for clamping the cable 131 discharged from the cable reel 13, to ensure that the cable 131 can be stably transmitted, that is, to prevent the cable 131 from loosening or deviating during the unwinding process. Since the cable 131 is clamped between the two rolling rollers 161, the cable 131 can be smoothly discharged or retracted by the clamping force of the two rolling rollers 161, to avoid excessive relaxation or excessive tension of the cable 131.

[0080] In a further embodiment, one of the rolling rollers 161 is provided with a limiting portion for preventing the cable 131 from being separated from the two rolling rollers 161, to ensure that the cable 131 is clamped between the two rolling rollers 161 when being discharged or retracted.

[0081] The specific structure of the pipeline detection equipment 2 provided by the utility model embodiment is described in detail below, and the specific structure of the pipeline detection equipment 2 is shown in the drawings. Figure 7 The specific structure of the pipeline detection equipment 2 includes the cable length measuring device 1, the camera 21 and the display 22 in any of the above embodiments.

[0082] The camera 21 is connected to one end of the cable 131 away from the signal connection end 132, and the display 22 is arranged outside the shell 11 and is electrically connected to the signal connection end 132.

[0083] Specifically, when the camera 21 is extended into the pipeline, the cable 131 is unwound by rotating the cable winding and unwinding disc 13, and since the receiving end of the display 22 is connected to the signal connection end 132 through the cable 131, the actual length of the cable 131 unwound (which can be understood as the distance of the camera extended into the pipeline) and the picture inside the pipeline can be viewed in real time through the display 22.

[0084] It should be noted that the shell 11 is provided with signal transmission ends on the outside and the inside, and the two signal transmission ends are connected to each other in signal transmission, so that when the signal transmission end on the outside of the shell 11 is connected to the display 22 and the signal transmission end in the shell 11 is connected to the signal connection end 132, the picture taken by the camera 21 can be transmitted to the display 22, realizing electrical signal transmission.

[0085] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A measuring device for cable winding and unwinding length, characterized in that, The measuring device includes: The housing has a through-hole in its side wall; A measuring component is disposed within the housing. The measuring component includes a base, a driving gear, a driven gear, a connecting column, and a distance calculation module. The driving gear and the driven gear are both rotatably mounted on the top of the base. The driven gear meshes with the driving gear and is connected to the distance calculation module for signal transmission. The connecting column is fixedly mounted on the top of the driving gear. A cable reel is detachably mounted on the connecting post; the cable reel contains a cable that can be released or retracted, one end of which is used to connect to a signal connection terminal.

2. The cable winding length measuring device according to claim 1, characterized in that, The cable reel includes a cable reel frame and a connecting part disposed on the cable reel frame, the connecting part being sleeved on the connecting post; a receiving cavity is formed inside the cable reel frame, and the cable is wound around the cavity wall of the receiving cavity; the cable reel frame has a first cable reel hole through it.

3. The cable winding length measuring device according to claim 2, characterized in that, The first wire coil hole is provided with a locking component to prevent the signal connection end from extending into the accommodating cavity.

4. The cable winding length measuring device according to claim 3, characterized in that, The locking assembly includes a first locking part and a second locking part. The first locking part has a second wire coil hole through it, and the second locking part is detachably disposed on the top of the first locking part for contacting the signal connection end.

5. The cable winding length measuring device according to claim 2, characterized in that, The connecting part is hollow and has an open connecting cavity. The cavity wall of the connecting cavity has a first straight surface. The outer side of the connecting post has a second straight surface for fitting against the first straight surface.

6. The cable winding length measuring device according to claim 2, characterized in that, The reel frame includes a first reel and a second reel detachably connected to the first reel; the accommodating cavity is located between the first reel and the second reel.

7. The cable winding length measuring device according to claim 1, characterized in that, The connecting post is detachably equipped with a locking cover for locking or releasing the cable reel.

8. The cable winding length measuring device according to claim 7, characterized in that, The outer wall of the connecting column is provided with a first thread, and the locking cover is provided with a second thread that mates with the first thread.

9. The cable winding length measuring device according to claim 1, characterized in that, It also includes a roller assembly, which is disposed inside the housing and located beside the measuring component, and the cable passes through the roller assembly; The roller assembly includes two rollers rotatably mounted on a base, and the cable is clamped between the two rollers.

10. A pipeline detection device, characterized in that, The pipeline detection equipment includes The cable winding length measuring device according to any one of claims 1-9; A camera is connected to the end of the cable furthest from the signal connection terminal; The display is disposed on the outside of the housing and is electrically connected to the signal connection terminal.

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