Annular saw blade mechanism and pipeline cleaning equipment

Abstract

The present invention provides a ring-shaped saw blade mechanism, which relates to the field of pipeline cleaning equipment; the ring-shaped saw blade mechanism comprises: a ring-shaped saw blade and a support assembly; the ring-shaped saw blade is formed by winding a long strip of saw blade; the head and tail ends of the ring-shaped saw blade are overlapped, so that an overlapping section is formed on the ring-shaped saw blade; the inner diameter of the ring-shaped saw blade can be changed by adjusting the length of the overlapping section; the support assembly is fixedly connected to the ring-shaped saw blade, and is used to support and fix the ring-shaped saw blade; the support assembly is also used for transmission connection with an external driving mechanism, so that the external driving mechanism can drive the ring-shaped saw blade to rotate through the support assembly; the outer diameter of the support assembly is adjustable; the outer diameter of the ring-shaped saw blade mechanism can be changed by adjusting the inner diameter of the ring-shaped saw blade and the outer diameter of the support assembly; the present invention also proposes a pipeline cleaning equipment, which can adjust the outer diameter of the ring-shaped saw blade mechanism according to use needs to adapt to pipelines with different inner diameters.

Description

Technical Field

[0001] The invention relates to the field of pipeline cleaning equipment, and in particular to an annular saw blade mechanism and pipeline cleaning equipment. Background Art

[0002] With the continuous deepening of urbanization, the scale of Chinese cities is getting larger and larger, and the urban underground pipe network is becoming more and more large and complex. The manpower and material resources required for cleaning urban underground sewage pipes are also gradually increasing. The level of pipeline cleaning and maintenance and supporting equipment needs to develop rapidly to meet the needs of sewage pipe cleaning, and pipeline cleaning robots came into being.

[0003] The internal environment of the pipeline is complicated, and the saw blade mechanism is usually required to cut off the tree roots growing in the pipeline during the pipeline cleaning process; the existing saw blade mechanism cannot adjust its outer diameter according to the size of the inner diameter of the pipeline, resulting in inconvenience in use. Summary of the invention

[0004] The present invention aims to provide an annular saw blade mechanism and a pipeline cleaning device, wherein the outer diameter of the annular saw blade mechanism can be adjusted according to use requirements to adapt to pipelines with different inner diameters.

[0005] The present invention provides an annular saw blade mechanism, comprising: an annular saw blade and a supporting assembly;

[0006] The annular saw blade is formed by winding a long strip of saw blade; the head and tail ends of the annular saw blade are overlapped, so that an overlapping section is formed on the annular saw blade; the inner diameter of the annular saw blade can be changed by adjusting the length of the overlapping section;

[0007] The support assembly is fixedly connected to the annular saw blade and is used to support and fix the annular saw blade; the support assembly is also used to be transmission-connected to an external driving mechanism, so that the external driving mechanism can drive the annular saw blade to rotate through the support assembly; the outer diameter of the support assembly is adjustable; by adjusting the inner diameter of the annular saw blade and the outer diameter of the support assembly, the outer diameter of the annular saw blade mechanism can be changed.

[0008] Furthermore, the support assembly includes a bracket, multiple rocker arms and multiple saw blade fixings; the bracket is used for transmission connection with an external driving mechanism; the rocker arms are evenly distributed on the periphery of the bracket; one end of the rocker arm is rotatably connected to the bracket, and the other end is rotatably connected to the saw blade fixing; the saw blade fixing is fixedly connected to the annular saw blade.

[0009] Furthermore, a plurality of groups of bolt mounting holes are provided on the annular saw blade; correspondingly, threaded holes used in conjunction with the bolt mounting holes are provided on the side wall of the saw blade fixing piece; the annular saw blade is fixedly connected to the saw blade fixing piece by bolts; the number of the bolt mounting holes in each group is multiple, so that after the inner diameter of the annular saw blade is adjusted, the overlapping section can be fixedly connected to the saw blade fixing piece.

[0010] Furthermore, the support assembly also includes a plurality of elastic connectors; the elastic connectors are arranged between adjacent swing rods and are rotationally connected to one side of the swing rods respectively; and the elastic connectors are in a compressed state.

[0011] Furthermore, the elastic connecting member is a compressed gas spring.

[0012] Furthermore, the elastic connecting member includes a first telescopic rod, a second telescopic rod and a spring; the second telescopic rod is a hollow structure with an open end; one end of the first telescopic rod is inserted into the second telescopic rod; the spring is located in the second telescopic rod and is respectively abutted against the first telescopic rod and the second telescopic rod, so that the spring is in a compressed state; the other ends of the first telescopic rod and the second telescopic rod are respectively rotatably connected to one side of the swing rod.

[0013] Furthermore, the support assembly also includes a baffle; the baffle is fixedly arranged on one side of the bracket and is used to block the cutting waste in front of the support assembly.

[0014] Furthermore, an arc-shaped limit slot is provided on the baffle; correspondingly, a limit rod is fixedly provided on the rocker arm; the other end of the limit rod is passed through the arc-shaped limit slot; the limit rod cooperates with the arc-shaped limit slot to limit the rotation range of the rocker arm, thereby limiting the adjustment range of the outer diameter of the support assembly.

[0015] Furthermore, the support assembly also includes a baffle fixing member; a limiting portion is provided at one end of the baffle fixing member; a first through hole is provided on the baffle; the baffle is sleeved on the baffle fixing member through the first through hole; the baffle fixing member is detachably connected to one side of the bracket, so that the two sides of the baffle are respectively abutted against the limiting portion and the bracket; the baffle fixing member cooperates with the bracket to fix the baffle on one side of the bracket.

[0016] The present invention also provides a pipeline cleaning device, comprising the above-mentioned annular saw blade mechanism.

[0017] The technical solution provided by the embodiment of the present invention has the following beneficial effects: the annular saw blade mechanism in the embodiment of the present invention comprises an annular saw blade and a support assembly; the annular saw blade is formed by winding a long strip of saw blade; the head and tail ends of the annular saw blade are overlapped, so that an overlapping section is formed on the annular saw blade; the inner diameter of the annular saw blade can be changed by adjusting the length of the overlapping section; the support assembly is fixedly connected to the annular saw blade for supporting and fixing the annular saw blade; the support assembly is also used for transmission connection with an external driving mechanism, so that the external driving mechanism can drive the annular saw blade to rotate through the support assembly; The outer diameter of the support assembly is adjustable; the outer diameter of the annular saw blade mechanism can be changed by adjusting the inner diameter of the annular saw blade and the outer diameter of the support assembly; when in use, the annular saw blade mechanism is transmission-connected to the external drive mechanism through the support assembly, and the annular saw blade mechanism is driven to rotate around its axis by the external drive mechanism; when the annular saw blade mechanism needs to be used for cleaning pipes with different inner diameters, the inner diameter of the annular saw blade is changed by adjusting the length of the overlapping section, and the outer diameter of the support assembly is adjusted accordingly, thereby changing the outer diameter of the annular saw blade mechanism to adapt to pipes with different inner diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a ring saw blade mechanism in a certain embodiment of the present invention;

[0019] Figure 2 for Figure 1 Another three-dimensional structural schematic diagram of the middle annular saw blade mechanism;

[0020] Figure 3 for Figure 1 The front view of the middle ring saw blade mechanism;

[0021] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the annular saw blade 1 in the annular saw blade mechanism;

[0022] Figure 5 for Figure 4 A top view of the middle annular saw blade 1;

[0023] Figure 6 for Figure 4 Schematic diagram of the structure of the middle ring saw blade 1 when it is unfolded

[0024] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the support assembly 2 in the annular saw blade mechanism;

[0025] Figure 8 for Figure 7 A partial enlarged schematic diagram of part A of the support assembly 2;

[0026] Fig. 9 for Figure 7 Another schematic diagram of the three-dimensional structure of the middle support assembly 2;

[0027] Fig.10 for Figure 7 A schematic diagram of the combination of the bracket 21 and the baffle fixing member 26 in the support assembly 2;

[0028] Fig.11 for Fig.10 A schematic diagram of the three-dimensional structure of the middle bracket 21;

[0029] Fig.12 for Fig.10 A schematic diagram of the three-dimensional structure of the middle baffle fixing member 26;

[0030] Fig.13 for Figure 7 A schematic diagram of the three-dimensional structure of the swing rod 22 in the support assembly 2;

[0031] Fig.14 for Figure 7 A schematic diagram of the three-dimensional structure of the saw blade fixing member 23 in the support assembly 2;

[0032] Fig.15 for Figure 7 A schematic diagram of the three-dimensional structure of the elastic connecting member 24 in the supporting assembly 2;

[0033] Fig.16 for Fig.15 A schematic diagram of the three-dimensional structure of the first telescopic rod 241 in the elastic connecting member 24;

[0034] Fig.17 for Fig.15 A schematic diagram of the three-dimensional structure of the second telescopic rod 243 in the elastic connecting member 24;

[0035] Fig.18 for Figure 7 A schematic diagram of the three-dimensional structure of the baffle 25 in the support assembly 2;

[0036] Fig.19 for Fig.18 A front view of the middle baffle 25;

[0037] Among them, 1. annular saw blade; 11. bolt mounting hole; 12. overlapping section; 2. support assembly; 21. bracket; 211. first mounting hole; 22. rocker arm; 221. second mounting hole; 222. first axial hole; 223. second axial hole; 23. saw blade fixing piece; 231. threaded hole; 232. connecting rod; 233. limit block; 24. elastic connecting piece; 241. first telescopic rod; 242. third axial hole; 243. second telescopic rod; 244. fourth axial hole; 25. baffle; 251. first through hole; 252. arc-shaped limit slot hole; 253. second through hole; 26. baffle fixing piece; 261. limit part; 27. limit rod; 28. limit nut. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0039] Please refer to Figures 1 to 6 , an embodiment of the present invention provides an annular saw blade mechanism, comprising: an annular saw blade 1 and a supporting assembly 2;

[0040] The annular saw blade 1 is formed by winding a long saw blade and is in an annular cylindrical shape; the head and tail ends of the annular saw blade 1 are overlapped, so that an overlapping section 12 is formed on the annular saw blade 1; the inner diameter of the annular saw blade 1 can be changed by adjusting the length of the overlapping section 12; the longer the overlapping section 12 is, the smaller the inner diameter of the annular saw blade 1 is; the shorter the overlapping section 12 is, the larger the inner diameter of the annular saw blade 1 is;

[0041] The support component 2 is fixedly connected to the annular saw blade 1, and is used to support and fix the annular saw blade 1; the support component 2 is also used to be transmission-connected to an external driving mechanism, so that the external driving mechanism can drive the annular saw blade 1 to rotate through the support component 2; the outer diameter of the support component 2 is adjustable; by adjusting the inner diameter of the annular saw blade 1 and the outer diameter of the support component 2, the outer diameter of the annular saw blade mechanism can be changed.

[0042] Specifically, refer to Figures 7 to 14 The support assembly 2 includes a bracket 21, a plurality of rocker arms 22 and a plurality of saw blade fixing members 23; the bracket 21 is used for transmission connection with an external driving mechanism; the rocker arms 22 are evenly distributed on the periphery of the bracket 21; one end of the rocker arms 22 is rotationally connected to the bracket 21, and the other end is rotationally connected to the saw blade fixing member 23; the saw blade fixing member 23 is fixedly connected to the annular saw blade 1.

[0043] Exemplarily, in this embodiment, the bracket 21 is cross-shaped; the number of the rocker arms 22 and the saw blade fixing member 23 is four respectively; the four rocker arms 22 are evenly distributed on the outer side of the bracket 21, and are respectively rotatably connected to the bracket 21; a first axial hole 222 is provided at one end of the rocker arm 22, and a second axial hole 223 is provided at the other end; one end of the rocker arm 22 is rotatably connected to the bracket 21 through a rotating shaft; a connecting rod 232 is provided at one end of the saw blade fixing member 23; one end of the connecting rod 232 is threadedly connected to the saw blade fixing member 23, and a limiting block 233 is provided at the other end; the connecting rod 232 is passed through the second axial hole 223, so that the rocker arm 22 is rotatably connected to the saw blade fixing member 23.

[0044] refer to Figure 4 and Fig.14 , a plurality of groups of bolt mounting holes 11 are provided on the annular saw blade 1; correspondingly, threaded holes 231 used in conjunction with the bolt mounting holes 11 are provided on the side wall of the saw blade fixing member 23; the annular saw blade 1 is fixedly connected to the saw blade fixing member 23 by bolts; the number of each group of bolt mounting holes 11 is multiple, so that after the inner diameter of the annular saw blade 1 is adjusted, the overlapping section 12 can be fixedly connected to the saw blade fixing member 23.

[0045] Exemplarily, in the present embodiment, six groups of bolt mounting holes 11 are provided on the annular saw blade 1; wherein, two groups of bolt mounting holes 11 at the first and second ends of the annular saw blade 1 have overlapping bolt mounting holes 11 with one group of bolt mounting holes 11 in the other four groups of bolt mounting holes 11 respectively; there are four pairs of bolt mounting holes 11 in each group of bolt mounting holes 11, and the four pairs of bolt mounting holes 11 are distributed along the circumference of the annular saw blade 1, so that the inner diameter of the annular saw blade 1 can be adjusted by changing the length of the overlapping section 12; when the annular saw blade 1 is detachably fixedly connected to the saw blade fixing member 23 by bolts, the wound annular saw blade 1 can be fixed on the outside of the support assembly 2.

[0046] refer to Figure 7 The support assembly 2 also includes a plurality of elastic connectors 24; the elastic connectors 24 are arranged between adjacent rocker arms 22 and are respectively rotatably connected to one side of the rocker arms 22; the elastic connectors 24 are in a compressed state; the elastic connectors 24 play a buffering role and can disperse the load of the annular saw blade 1; in addition, by arranging an elastic connector 24 between two adjacent rocker arms 22, the rocker arms 22 can be linked to each other, and by rotating one of the rocker arms 22, the other rocker arms 22 can be driven to rotate, thereby adjusting the outer diameter of the support assembly 2, which is convenient to use.

[0047] For example, reference Figures 15 to 17In this embodiment, the elastic connecting member 24 includes a first telescopic rod 241, a second telescopic rod 243 and a spring (not shown in the figure); the second telescopic rod 243 is a hollow structure with an opening at one end; one end of the first telescopic rod 241 is inserted into the second telescopic rod 243; the spring is located in the second telescopic rod 243, and is respectively abutted against the first telescopic rod 241 and the second telescopic rod 243, so that the spring is in a compressed state; the other end of the first telescopic rod 241 is provided with a third axial hole 242; the other end of the second telescopic rod 243 is provided with a fourth axial hole 244; the other ends of the first telescopic rod 241 and the second telescopic rod 243 are respectively rotatably connected to one side of the swing rod 22 through a rotating shaft.

[0048] As a variation of this embodiment, the elastic connecting member 24 is a compression gas spring.

[0049] refer to Fig.18 and Fig.19 The support assembly 2 also includes a baffle 25 ; the baffle 25 is fixedly disposed on one side of the bracket 21 and is used to block the cutting waste in front of the support assembly 2 .

[0050] Exemplarily, in this embodiment, the baffle 25 is circular; the baffle 25 is coaxially arranged with the support assembly 2 .

[0051] refer to Figure 8 , Fig. 9 , Fig.18 and Fig.19 , an arc-shaped limit slot 252 is provided on the baffle 25; correspondingly, a limit rod 27 is fixedly provided on the rocker arm 22; the limit rod 27 is vertically arranged on one side of the rocker arm 22; the other end of the limit rod 27 is passed through the arc-shaped limit slot 252; the limit rod 27 cooperates with the arc-shaped limit slot 252 to limit the rotation range of the rocker arm 22, thereby limiting the adjustment range of the outer diameter of the support assembly 2.

[0052] Exemplarily, in this embodiment, a second mounting hole 221 is provided on the rocker arm 22; one end of the limiting rod 27 is passed through the second mounting hole 221, and the other end is passed through the arc-shaped limiting slot 252; limiting nuts 28 are respectively provided at both ends of the limiting rod 27 to limit the limiting rod 27 in the second mounting hole 221 and the arc-shaped limiting slot 252; when the rocker arm 22 rotates around the bracket 21, it drives the limiting rod 27 to move in the arc-shaped limiting slot 252.

[0053] refer to Fig.18 and Fig.19 In order to reduce the mass of the baffle 25 , the baffle 25 is provided with a plurality of second through holes 253 ; illustratively, in this embodiment, the number of the second through holes 253 is five.

[0054] In this embodiment, the central angle of the arc-shaped limiting slot 252 is 50°.

[0055] refer to Figures 9 to 12 The support assembly 2 also includes a baffle fixing member 26; a limiting portion 261 is provided at one end of the baffle fixing member 26; a first mounting hole 211 is provided in the central axis direction of the bracket 21; an internal thread is provided in the first mounting hole 211; an external thread used in conjunction with the internal thread is provided at the other end of the baffle fixing member 26; a first through hole 251 is provided on the baffle 25; the baffle 25 is sleeved on the baffle fixing member 26 through the first through hole 251; the baffle fixing member 26 and the bracket 21 are detachably connected through the external thread and the internal thread, so that the two sides of the baffle 25 are respectively abutted against the limiting portion 261 and the bracket 21; the baffle fixing member 26 cooperates with the bracket 21 to fix the baffle 25 on one side of the bracket 21.

[0056] The present invention also provides a pipeline cleaning device, comprising the above-mentioned annular saw blade mechanism.

[0057] It should be noted that the annular saw blade mechanism and the pipeline cleaning device of the present invention can not only be used to clean tree roots growing into the pipeline, but also can be used to cut off other debris or for circular cutting.

[0058] The method of using the annular saw blade mechanism in this embodiment is as follows:

[0059] When in use, the annular saw blade mechanism is connected to the external driving mechanism through the supporting assembly 2, and the annular saw blade mechanism is driven to rotate around its axis by the external driving mechanism; when the annular saw blade mechanism needs to be used for cleaning pipes with different inner diameters, the inner diameter of the annular saw blade 1 is changed by adjusting the length of the overlapping section 12, and the outer diameter of the supporting assembly 2 is adjusted accordingly, thereby changing the outer diameter of the annular saw blade mechanism to adapt to pipes with different inner diameters.

[0060] For matters not mentioned above, the prior art applies.

[0061] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0062] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ring saw blade mechanism, characterized in that: include: Annular saw blade and support assembly; The annular saw blade is formed by winding a long strip of saw blade; the head and tail ends of the annular saw blade are overlapped, so that an overlapping section is formed on the annular saw blade; By adjusting the length of the overlapping section, the inner diameter of the annular saw blade can be changed; The support assembly is fixedly connected to the annular saw blade and is used to support and fix the annular saw blade; The support assembly is also used for transmission connection with an external driving mechanism, so that the external driving mechanism can drive the annular saw blade to rotate through the support assembly; the outer diameter of the support assembly is adjustable; by adjusting the inner diameter of the annular saw blade and the outer diameter of the support assembly, the outer diameter of the annular saw blade mechanism can be changed; The support assembly includes a bracket, a plurality of swing rods and a plurality of saw blade fixing parts; the bracket is used for transmission connection with an external driving mechanism; the swing rods are evenly distributed on the periphery of the bracket; one end of the swing rod is rotatably connected to the bracket, and the other end is rotatably connected to the saw blade fixing part; the saw blade fixing part is fixedly connected to the annular saw blade; The support assembly further includes a plurality of elastic connectors; the elastic connectors are arranged between adjacent swing rods and are rotatably connected to one side of the swing rods respectively; the elastic connectors are in a compressed state; The elastic connecting member includes a first telescopic rod, a second telescopic rod and a spring; the second telescopic rod is a hollow structure with one end open; one end of the first telescopic rod is inserted into the second telescopic rod; The spring is located in the second telescopic rod and is respectively in contact with the first telescopic rod and the second telescopic rod, so that the spring is in a compressed state; the other ends of the first telescopic rod and the second telescopic rod are respectively rotatably connected to one side of the swing rod; The annular saw blade is provided with a plurality of groups of bolt mounting holes; correspondingly, the side wall of the saw blade fixing piece is provided with threaded holes used in conjunction with the bolt mounting holes; the annular saw blade is fixedly connected to the saw blade fixing piece by bolts; the number of the bolt mounting holes in each group is multiple, so that after the inner diameter of the annular saw blade is adjusted, the overlapping section can be fixedly connected to the saw blade fixing piece.

2. The annular saw blade mechanism according to claim 1, characterized in that: The support assembly also includes a baffle plate; the baffle plate is fixedly arranged on one side of the bracket and is used to block the cutting waste in front of the support assembly.

3. The annular saw blade mechanism according to claim 2, characterized in that: An arc-shaped limit slot is provided on the baffle; correspondingly, a limit rod is fixedly provided on the rocker arm; the other end of the limit rod is inserted into the arc-shaped limit slot; the limit rod cooperates with the arc-shaped limit slot to limit the rotation range of the rocker arm, thereby limiting the adjustment range of the outer diameter of the support assembly.

4. The annular saw blade mechanism according to claim 2, characterized in that: The support assembly also includes a baffle fixing member; a limiting portion is provided at one end of the baffle fixing member; a first through hole is provided on the baffle; the baffle is sleeved on the baffle fixing member through the first through hole; the baffle fixing member is detachably connected to one side of the bracket, so that the two sides of the baffle are respectively abutted against the limiting portion and the bracket; the baffle fixing member cooperates with the bracket to fix the baffle on one side of the bracket.

5. A pipeline cleaning device, characterized in that: It comprises the annular saw blade mechanism as described in any one of claims 1 to 4.

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