Flexible installation type pipeline abrasion prevention pulley device for drainage ditch

Abstract

The embodiment of the invention provides a flexible installation type pipeline abrasion prevention pulley device for a drainage ditch. The flexible installation type pipeline abrasion prevention pulley device comprises a supporting frame; the fixed roller and the guide double reverse conical roller are installed on the inner side of the supporting frame through fastening bolts, and the fixed roller is located over the guide double reverse conical roller; one end of a roller shaft of the movable roller is hinged to one side of the supporting frame, the other end of the roller shaft of the movable roller is detachably installed on the other side of the supporting frame, and the movable roller is located right in front of the guiding double-reverse-cone-shaped roller; the pressing mechanism is installed on the back face of the back plate, the height of the pressing mechanism can be adjusted, and the drainage ditch cover plate can be pressed and fixed; and the two side supporting assemblies are arranged on the two sides of the supporting frame correspondingly, the width can be adjusted, and the side walls of the drainage ditch can be supported. The high-pressure water pipe can be stabilized, guided and supported in the flushing operation process when the high-pressure water pipe moves forwards and backwards in the horizontal direction along the drainage ditch, the fastening and stabilizing effect is good, dismounting and mounting are convenient, and the device is suitable for the technical field of railway maintenance machinery.

Description

Technical Field

[0001] The present application relates to the technical field of railway maintenance machinery, and in particular to a flexibly installed anti-pipeline abrasion pulley device for a drainage ditch. Background Art

[0002] The purpose of the railway tunnel drainage ditch desilting and dredging vehicle is to clear the tunnel drainage ditch, dense well, blind ditch, precipitation well and other tunnel drainage facilities, to clear the silt, collect and unload the silt at a different place. It can avoid the occurrence of diseases such as mud on the roadbed caused by the blockage of the drainage ditch, and ensure the safety of vehicle operation.

[0003] High-pressure cleaning and dredging is the process of using a power device to make a high-pressure pump convert ordinary pressure water into high-pressure water, which then passes through a high-pressure pipeline to reach the control device, and the high-pressure nozzle converts the high-pressure water into a high-pressure water jet to rinse the surface of the object. When the impact force of the water is greater than the surface adhesion of the dirt and the object, the high-pressure water jet will peel off and flush away the dirt. When unblocking and cleaning the lower drain, an extended hose and a pipe flushing nozzle can be installed. The drill tip drills deeply into the blocked silt, opening up space in the middle of the blockage. The nozzle sprays forward to remove hard blockages, and the nozzle flushes the blockages backwards as it moves forward.

[0004] Since the high-pressure water pipe falls vertically from a height, it moves forward and backward horizontally along the drainage ditch for flushing operations during operation. During the operation, due to the dynamic changes in water pressure and the time of advancement and retreat, it is difficult to guide the water pipe smoothly, which can easily cause the water pipe to run around and scrape and abrade the surface of the water pipe against the two sides of the drainage ditch.

[0005] Currently, the wire-releasing pulley purchased for electric power equipment lacks a supporting and stabilizing mechanism for supporting the side wall of the drainage ditch. The wire-releasing pulley device can only be pressed down by a heavy object. It is very easy to slide during use and it is difficult to meet the needs of using high-pressure water pipes.

[0006] Therefore, it is necessary to design and develop a flexibly installed anti-pipeline abrasion pulley device for drainage ditches to meet the stability and guide support of the high-pressure water pipe during the flushing operation when it moves forward and backward in the horizontal direction along the drainage ditch. Summary of the invention

[0007] In order to solve one of the above technical defects, the present application provides a flexible installation type anti-pipeline wear pulley device for a drainage ditch, comprising:

[0008] The supporting frame comprises a back plate and two side plates, wherein the two side plates are vertically connected to the front side of the back plate, and the two side plates are parallel to each other and spaced apart;

[0009] The fixed roller and the guide double reverse tapered roller are respectively installed on the inner sides of the two side plates by fastening bolts, and the fixed roller is located directly above the guide double reverse tapered roller;

[0010] A movable roller, one end of whose roller shaft is hinged to the side plate, and the other end of whose roller shaft is detachably mounted on the other side plate, and the movable roller is located directly in front of the guide double reverse conical roller;

[0011] The clamping mechanism is installed on the back of the back plate and can clamp and fix the gutter cover.

[0012] Preferably, the flexible installation type anti-pipeline wear pulley device for drainage ditch further includes two side support assemblies, which are respectively installed on the outer sides of the two side plates, and each side support assembly includes:

[0013] The connecting plate is mounted on the side plate by fastening bolts, and a hinged support is provided at the bottom thereof;

[0014] A side support plate, on which two hinged supports are arranged at intervals;

[0015] A first side support link, one end of which is hinged to a hinged support of the connecting plate, and the other end of which is hinged to a hinged support located below the side support plate;

[0016] The side support adjustment mechanism is installed on the upper part of the connecting plate, and the output end of the side support adjustment mechanism can perform vertical lifting movement;

[0017] The second side support connecting rod has one end hinged to the hinged support located above the side support supporting plate, and the other end hinged to the output end of the side support adjusting mechanism.

[0018] Preferably, the side support adjustment mechanism comprises:

[0019] A vertically arranged side support screw, a connecting plate is provided with a guide sleeve, a mounting seat, and a hinged support in sequence from top to bottom, a rotating handle is connected to the top end of the side support screw, and the bottom end of the side support screw passes through the guide sleeve and is rotatably connected to the mounting seat;

[0020] The nut member is threadably sleeved on the side support screw rod, and the outer side of the nut member is hinged to the other end of the second side support connecting rod.

[0021] Preferably, the pressing mechanism comprises:

[0022] A lower fixing plate is horizontally installed at the middle of the back of the back plate;

[0023] An upper fixing plate, horizontally mounted on the upper part of the back of the back plate;

[0024] The top end of the clamping screw is connected with a rotating handle, and the bottom end of the clamping screw passes through the upper fixing plate and is connected with a horizontally arranged clamping adjustment plate. The clamping screw is threadedly connected with the upper fixing plate.

[0025] Preferably, the pressing mechanism further comprises:

[0026] The limiting nut is threadably connected to the pressing screw and is arranged between the upper fixing plate and the rotating handle.

[0027] Preferably, hinged supports are respectively provided on the two side panels, one end of the movable roller shaft is hinged to the hinged support on one side through a pin shaft, the movable roller shaft can be rotated outward horizontally around the pin shaft to open, and the other end of the movable roller shaft is pluggably connected to the hinged support on the other side through a spring pin.

[0028] Preferably, the side support assembly can be disassembled by releasing the fastening bolts between the connecting plate and the side plate. After the side support assembly is disassembled, it can be replaced with a fixed wing plate, which is mounted on the side plate by fastening bolts.

[0029] Preferably, a side of the side support plate away from the side plate has an uneven surface.

[0030] The flexibly installed anti-pipeline abrasion pulley device for the drainage ditch provided in the embodiment of the present application is adopted, and the drainage ditch cover plate is pressed and fixed by a clamping mechanism, and the lateral position of the side support plate is adjusted by the side support assembly, thereby completing the support and fixation of the ditch side wall. The clamping mechanism and the side support assembly cooperate to complete the fixation of the device to the drainage ditch. By arranging fixed rollers, guiding double reverse conical rollers and movable rollers, the stability and guiding support of the high-pressure water pipe during the horizontal forward and backward flushing operation along the drainage ditch can be met, thereby avoiding the phenomenon that the water pipe is difficult to guide smoothly due to dynamic changes in water pressure and forward and backward, causing the water pipe to run around and scrape and abrade the surface of the water pipe against the two sides of the drainage ditch.

[0031] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the contents pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0033] Figure 1 A schematic diagram of the front structure of a flexible installation type anti-pipeline abrasion pulley device for a drainage ditch provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of the back structure of a flexible installation type anti-pipeline abrasion pulley device for a drainage ditch provided in an embodiment of the present application;

[0035] Figure 3A schematic diagram of replaceable components of a flexible installation anti-pipeline abrasion pulley device for a drainage ditch provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the installation of a flexibly installed anti-pipeline abrasion pulley device for a drainage ditch provided in an embodiment of the present application.

[0037] Among them, 100 is a pulley device to prevent pipeline wear, 101 is a supporting frame, 102 is a side support screw, 103 is a rotating handle, 104 is a fixed roller, 105 is a second side support connecting rod, 106 is a side support support plate, 107 is a pin, 108 is a guide double reverse tapered roller, 109 is a movable roller, 110 is a spring pin, 111 is a limit nut, 112 is a clamping adjustment plate, 113 is a lower fixed plate, 114 is a fixed wing plate, 115 is a fastening bolt, 116 is a back plate, 117 is a side plate, 118 is a connecting plate, 119 is a first side support connecting rod, 120 is a nut, 121 is an upper fixed plate, 122 is a clamping screw, 201 is a water pipe, 301 is a drainage ditch cover, and 302 is a drainage ditch. DETAILED DESCRIPTION

[0038] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0039] In the process of realizing this application, the inventor found that the purpose of the railway tunnel drainage ditch desilting and dredging vehicle is to clear the tunnel drainage facilities such as drainage ditches, dense wells, blind ditches, and precipitation wells in the tunnel for dredging, silt cleaning, collection and off-site unloading. It avoids the occurrence of diseases such as mud bubbling on the roadbed caused by silt blocking the drainage ditch, and ensures the safety of vehicle operation.

[0040] High-pressure cleaning and dredging is the process of using a power device to make a high-pressure pump convert ordinary pressure water into high-pressure water, which then passes through a high-pressure pipeline to reach the control device, and the high-pressure nozzle converts the high-pressure water into a high-pressure water jet to rinse the surface of the object. When the impact force of the water is greater than the surface adhesion of the dirt and the object, the high-pressure water jet will peel off and flush away the dirt. When unblocking and cleaning the lower drain, an extended hose and a pipe flushing nozzle can be installed. The drill tip drills deeply into the blocked silt, opening up space in the middle of the blockage. The nozzle sprays forward to remove hard blockages, and the nozzle flushes the blockages backwards as it moves forward.

[0041] Since the high-pressure water pipe falls vertically from a height, it moves forward and backward horizontally along the drainage ditch for flushing operations during operation. During the operation, due to the dynamic changes in water pressure and the time of advancement and retreat, it is difficult to guide the water pipe smoothly, which can easily cause the water pipe to run around and scrape and abrade the surface of the water pipe against the two sides of the drainage ditch.

[0042] Currently, the wire-releasing pulley purchased for electric power equipment lacks a supporting and stabilizing mechanism for supporting the side wall of the drainage ditch. The wire-releasing pulley device can only be pressed down by a heavy object. It is very easy to slide during use and it is difficult to meet the needs of using high-pressure water pipes.

[0043] Therefore, it is necessary to design and develop a flexibly installed anti-pipeline abrasion pulley device for drainage ditches to meet the stability and guide support of the high-pressure water pipe during the flushing operation when it moves forward and backward in the horizontal direction along the drainage ditch.

[0044] In view of the above problems, the present application provides a flexible installation type anti-pipeline abrasion pulley device for a drainage ditch (hereinafter referred to as the anti-pipeline abrasion pulley device 100), such as Figure 1-Figure 4 As shown, including:

[0045] The support frame 101 includes a vertically arranged back plate 116 and two side plates 117. The two side plates 117 are vertically connected to the front of the back plate 116. The two side plates 117 are parallel to each other and arranged at intervals. The bottom of the side plates 117 protrudes forward to provide a mounting position for the guide double reverse tapered rollers 108.

[0046] The fixed roller 104 and the guide double reverse tapered roller 108 are respectively mounted on the inner sides of the two side plates 117 by means of fastening bolts 115. The guide double reverse tapered roller 108 is mounted on the inner sides of the forward protruding parts at the bottom of the two side plates 117. The fixed roller 104 is located directly above the guide double reverse tapered roller 108.

[0047] The movable roller 109 has one end of its roller shaft hinged on the side plate 117, and the other end of its roller shaft is detachably mounted on the other side plate 117, and the movable roller 109 is located directly in front of the guide double reverse tapered roller 108;

[0048] The clamping mechanism is installed on the back side of the back plate 116 and can clamp and fix the gutter cover 301.

[0049] When implementing it, Figure 4As shown, several drain ditch covers 301 on the drain ditch 302 are removed to free up sufficient installation space and use space for the anti-pipeline wear pulley device 100 and the water pipe 201, and the anti-pipeline wear pulley device 100 is fixed to the outermost drain ditch cover 301 by using a clamping mechanism, and the restriction of the detachable end of the movable roller 109 is released, and the water pipe 201 passes through the fixed roller 104 and the guide double reverse conical roller 108 in turn, and the detachable end of the movable roller 109 is re-locked, and the water pipe 201, the water pipe 201, and the water pipe 201 are transported. It slides smoothly along the surface of the roller group, falls vertically and guides to the horizontal direction, and extends to the inside of the drainage ditch 302. After that, the water pipe 201 is connected to the high-pressure pump, and the water pipe 201 moves forward and backward in the horizontal direction along the drainage ditch 302 for flushing. When moving forward and backward, the water pipe 201 is always located between the movable roller 109 and the guide double reverse cone roller 108 to slide, so as to achieve stability and guidance of the water pipe 201, and avoid the phenomenon that the water pipe runs around and scrapes and abrades the surface of the water pipe on both sides of the drainage ditch due to dynamic changes in water pressure and moving forward and backward. Furthermore, the fixed roller 104, the guide double reverse cone roller 108 and the movable roller 109 are a set of roller combinations, and the number of rollers therein can be increased or decreased according to specific usage.

[0050] In the process of implementing the present application, the inventors discovered that merely clamping and fixing the clamping mechanism and the gutter cover 301 is not sufficient to completely stabilize the anti-pipeline abrasion pulley device 100. Although the gutter cover 301 has a certain self-weight, it is still movable relative to the drainage ditch 302. If the dynamic change amplitude of the water pressure in the water pipe pipeline 201 is too large, the water pipe pipeline 201 may cause the anti-pipeline abrasion pulley device 100 and the gutter cover 301 to move relative to the drainage ditch 302. If this phenomenon occurs frequently, it may still cause the water pipe pipeline 201 to scrape and abrade the surface of the water pipe against both sides of the gutter.

[0051] In view of the above problems, the present application provides a preferred solution. The pipeline wear prevention pulley device 100 further includes two side support assemblies, which are respectively installed on the outer sides of the two side plates 117. Each side support assembly includes:

[0052] The vertically arranged connecting plate 118 is closely mounted on the side plate 117 by means of fastening bolts 115, and a hinged support is arranged at the bottom thereof;

[0053] The side support plate 106 is arranged on the connecting plate 118, and two hinged supports are arranged at intervals on one side close to the connecting plate 118;

[0054] A first side support link 119, one end of which is hinged to a hinged support at the bottom of the connecting plate 118, and the other end of which is hinged to a hinged support located below the side support plate 106;

[0055] The side support adjustment mechanism is installed on the upper part of the connecting plate 118, and the output end of the side support adjustment mechanism can perform vertical lifting movement;

[0056] One end of the second side support link 105 is hinged to the hinged support located above the side support support plate 106, and the other end is hinged to the output end of the side support adjustment mechanism.

[0057] As a supplement to the above preferred solution, the side support adjustment mechanism includes:

[0058] The vertically arranged side support screw 102 and the connecting plate 118 are provided with a guide sleeve, a mounting seat, and a hinged support in sequence from top to bottom. The top end of the side support screw 102 is connected to a rotating handle 103, and the bottom end of the side support screw 102 passes through the guide sleeve and is rotatably connected to the mounting seat.

[0059] The nut member 120 is threadedly sleeved on the side support screw rod 102 , and the outer side of the nut member 120 is hinged to the other end of the second side support connecting rod 105 .

[0060] In specific implementation, the side support assembly mainly completes the support between the anti-pipeline wear pulley device 100 and the side wall of the drainage ditch 302. When the anti-pipeline wear pulley device 100 is fixed to the outermost drainage ditch cover 301 by using the clamping mechanism, it is preferred to fix the anti-pipeline wear pulley device 100 between the two side walls of the drainage ditch 302 to provide space for the expansion and deformation support of the side support assembly. After the clamping is completed, the side support screw 102 is driven to rotate by rotating the handle 103, and the nut member 120 converts the rotational motion into linear motion in the vertical direction, and through the transmission of the second side support link 105, the side support support plate 106 can be moved towards or away from the side plate 117. When the side support assembly needs to be unfolded, the corresponding side support support plate 106 moves away from the side plate 117 until the side support support plates 106 on both sides are in contact with and pressed against the side walls of the drainage ditch 302, and cooperate with the clamping mechanism to complete the fixation between the anti-pipeline wear pulley device 100 and the drainage ditch 302.

[0061] Furthermore, when the side support assemblies on both sides are unfolded, it is preferred to first adjust the side support assemblies on both sides until the side support support plates 106 contact the side walls of the drainage ditch 302, and then rotate the rotating handles 103 in turn to keep the force balance of the side support assemblies on both sides, which can effectively improve the fixing effect.

[0062] Furthermore, if a relatively narrow drainage ditch 302 is encountered during the implementation process, the side support assembly can be retracted inwards and then enter the drainage ditch 302, and then the clamping mechanism can be fixed and the side wall can be supported subsequently.

[0063] As a preferred solution, the pressing mechanism includes:

[0064] The lower fixing plate 113 is horizontally mounted on the middle part of the back side of the back plate 116;

[0065] The upper fixing plate 121 is horizontally mounted on the upper portion of the back side of the back plate 116;

[0066] A compression screw 122, the top of which is connected to the rotating handle 103, and the bottom of which passes through the upper fixing plate 121 and is connected to the horizontally arranged compression adjustment plate 112, and the compression screw 122 is threadedly connected to the upper fixing plate 121;

[0067] As a supplement to the above preferred solution, the pressing mechanism also includes:

[0068] The limiting nut 111 is threadedly connected to the pressing screw 122 and is disposed between the upper fixing plate 121 and the rotating handle 103 .

[0069] When implementing it, Figure 2 as well as Figure 4 As shown, before installation, first loosen the rotating handle 103 to leave a distance between the clamping adjustment plate 112 and the lower fixed plate 113 that is greater than the thickness of the gutter cover 301, and face the back of the back plate 116 to the outermost gutter cover 301. After alignment, move the anti-pipeline wear pulley device 100 toward the gutter cover 301 until the side wall of the gutter cover 301 is close to the back of the back plate 116, adjust the vertical height of the anti-pipeline wear pulley device 100, so that the lower surface of the gutter cover 301 is close to the upper surface of the lower fixed plate 113, and while one hand maintains the close contact state, the other hand tightens the rotating handle 103, and the clamping adjustment plate 112 moves downward until it is pressed against the upper surface of the gutter cover 301, and then tightens the limit nut 111 to complete the fixation of the clamping mechanism.

[0070] As a preferred solution, hinged supports are respectively provided on the two side panels 117, and one end of the roller shaft of the movable roller 109 is hinged to the hinged support on one side through a pin 107. The roller shaft of the movable roller 109 can be rotated outward horizontally around the pin 107 to open, and the other end of the roller shaft of the movable roller 109 is pluggably connected to the hinged support on the other side through a spring pin 110.

[0071] As a preferred solution, Figure 3 As shown, the side support assembly can be disassembled by releasing the fastening bolts 115 between the connecting plate 118 and the side plate 117. After the side support assembly is disassembled, it can be replaced with a fixed wing plate 114. The fixed wing plate 114 is installed on the side plate by fastening bolts 115. By replacing parts, it can adapt to different cross-section sizes of the drainage ditch.

[0072] As a preferred solution, the side of the side support plate 106 away from the side plate has an uneven surface, which can generate sufficient static friction between the side wall of the drainage ditch 302 after the side support assembly is deployed to support.

[0073] The present application provides a flexibly installed anti-pipeline wear pulley device for a drainage ditch. A clamping mechanism is provided to achieve clamping and fixing of the drainage ditch cover plate, and the width of the clamping mechanism can adapt to drainage ditch covers of different thicknesses; a side support assembly is provided, and a side support screw-nut structure is utilized to convert rotational motion into linear motion in the vertical direction, and the side support supporting plates are hingedly connected to the side support connecting rod so that the side support supporting plates can be unfolded or folded to both sides, so that the side walls of ditches of different widths can be supported and fixed, and the clamping mechanism is used to achieve fixation of the device to the drainage ditch. When folded and stored, the device occupies little space and is easy to carry; a fixed roller, a guiding double reverse conical roller and a movable roller are provided to guide the water pipe pipeline to meet the anti-wear function during the expansion and contraction of the pipeline; a movable roller that can be plugged in at one end is used to facilitate quick disassembly, assembly and fixation of the water pipe pipeline; the side support assembly can be separated from the support frame by disassembling the connecting plate, and can be replaced with a fixed wing plate to adapt to the different cross-section sizes of the drainage ditch. The present application provides a flexibly installed anti-pipe abrasion pulley device for a drainage ditch, which can provide stability and guide support for the high-pressure water pipe during the flushing operation when it moves forward and backward in the horizontal direction along the drainage ditch. It can adapt to the flushing operations of drainage ditches of various sizes, has good fastening and stabilizing effects, is easy to disassemble and assemble, and is very practical.

[0074] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0077] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0078] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A flexible installation type anti-pipeline abrasion pulley device for drainage ditch, characterized in that: include: A support frame (101) comprises a back plate (116) and two side plates (117), wherein the two side plates (117) are vertically connected to the front side of the back plate (116), and the two side plates (117) are parallel to each other and spaced apart; A fixed roller (104) and a guide double reverse cone roller (108), which are respectively installed on the inner sides of two side plates (117) through fastening bolts (115), and the fixed roller (104) is located directly above the guide double reverse cone roller (108); A movable roller (109), one end of the roller shaft of which is hinged on the side plate (117), and the other end of the roller shaft of which is detachably mounted on the other side plate (117), and the movable roller (109) is located directly in front of the guide double reverse cone roller (108); The clamping mechanism comprises a back clamping mechanism and two side clamping mechanisms, wherein the back clamping mechanism is installed on the back of the back plate (116) and the two side clamping mechanisms are installed on the side plate (117), and can clamp and fix the drainage ditch cover plate (301).

2. The flexible installation type anti-pipeline wear pulley device for drainage ditch according to claim 1 is characterized in that: It also includes two side support assemblies, which are respectively installed on the outer sides of the two side panels (117), and each of the side support assemblies includes: A connecting plate (118) is mounted on the side plate (117) by means of fastening bolts (115), and a hinged support is provided at the bottom thereof; A side support plate (106) on which two hinged supports are arranged at intervals; A first side support link (119), one end of which is hinged to a hinged support of the connecting plate (118), and the other end of which is hinged to a hinged support located below the side support plate (106); A side support adjustment mechanism is installed on the upper part of the connecting plate (118), and the output end of the side support adjustment mechanism can perform vertical lifting movement; The second side support connecting rod (105) has one end hinged to a hinged support located above the side support supporting plate (106), and the other end hinged to the output end of the side support adjusting mechanism.

3. The flexible installation type anti-pipeline wear pulley device for drainage ditch according to claim 2 is characterized in that: The side support adjustment mechanism comprises: A vertically arranged side support screw (102), the connecting plate (118) is provided with a guide sleeve, a mounting seat, and a hinged support in sequence from top to bottom, the top end of the side support screw (102) is connected to a rotating handle (103), and the bottom end of the side support screw (102) passes through the guide sleeve and is rotatably connected to the mounting seat; A nut member (120) is threadedly sleeved on the side support screw rod (102), and an outer side of the nut member (120) is hinged to the other end of the second side support connecting rod (105).

4. The flexible installation type anti-pipeline wear pulley device for drainage ditch according to claim 1, characterized in that: The clamping mechanism comprises: A lower fixing plate (113) is horizontally mounted on the middle portion of the back side of the back plate (116); An upper fixing plate (121) is horizontally mounted on the upper portion of the back side of the back plate (116); The top end of the clamping screw (122) is connected to a rotating handle (103), and the bottom end thereof passes through the upper fixing plate (121) and is connected to a horizontally arranged clamping adjustment plate (112). The clamping screw (122) is threadedly connected to the upper fixing plate (121).

5. The flexible installation type anti-pipeline wear pulley device for drainage ditch according to claim 4, characterized in that: The clamping mechanism also includes: A limiting nut (111) is threadedly connected to the pressing screw (122) and is arranged between the upper fixing plate (121) and the rotating handle (103).

6. The flexible installation type anti-pipeline wear pulley device for drainage ditch according to claim 1, characterized in that: The two side plates (117) are respectively provided with hinged supports, one end of the roller shaft of the movable roller (109) is hinged to the hinged support on one side through a pin shaft (107), the roller shaft of the movable roller (109) can be rotated outward horizontally around the pin shaft (107) to open, and the other end of the roller shaft of the movable roller (109) is pluggably connected to the hinged support on the other side through a spring pin (110).

7. The flexible installation type anti-pipeline wear pulley device for drainage ditch according to claim 3, characterized in that: The side support assembly can be disassembled by releasing the fastening bolts (115) between the connecting plate (118) and the side plate (117). After the side support assembly is disassembled, it can be replaced with a fixed wing plate (114). The fixed wing plate (114) is installed on the side plate (117) by the fastening bolts (115).

8. The flexible installation type anti-pipeline wear pulley device for drainage ditch according to claim 2, characterized in that: The side of the side support plate (106) away from the side plate has an uneven surface.

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