Rotary rope saw and rope clamping prevention device
The design of the anti-rope pinching device solves the problem of rope pinching during the submarine pipe cutting process of the rotary rope saw, and achieves the smooth completion of submarine pipe cutting and saw withdrawal. It is suitable for cutting submarine pipes of different diameters.
Patent Information
- Application Number
- CN202423020771.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-09
AI Technical Summary
During the cutting process of submarine pipes, the rotary wire saw is prone to clamping the cutting rope due to the retraction of the cutting opening, resulting in the inability to retract the saw normally.
A rope-prevention device is designed, which includes a mounting base, a slide bar, an adapter base and a clamping block. The clamping block is embedded in the incision and can be disassembled or released after the cutting is completed, ensuring the smooth exit of the cutting rope.
It effectively prevents the rotating wire saw from clamping the rope when cutting the submarine pipe, ensures smooth retraction of the saw after the cutting is completed, and adapts to the cutting needs of submarine pipes with different diameters.
Smart Images
Figure CN223456096U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to underwater construction equipment technical field especially, relates to a kind of rotary rope saw and anti-clip rope device. BACKGROUND
[0002] With the development of marine technology, the role of deep-sea pipelines in marine engineering becomes increasingly important, and deep-sea pipelines are widely used in fields such as transportation, fluid transportation, etc. During use, various reasons can cause damage to the pipeline, for example, due to the long-term exposure of deep-sea pipelines to seawater and other corrosive environments, the pipeline may be corroded and worn, affecting its structural integrity and functionality; at the same time, submarine earthquakes, landslides, anchoring accidents or other underwater activities can cause the pipeline to be impacted externally, causing damage or rupture; and long-term exposure to pressure and temperature changes, as well as dynamic loads such as ocean currents, can cause the pipeline material to fatigue, leading to cracks or breaks.
[0003] During the cutting of the pipeline, a rotary rope saw is needed to cut the pipeline, but due to the external load or gravity of the pipeline, and the small cutting opening, the cutting opening may retract, making it easy to clamp the cutting rope, which prevents normal retreat of the saw. SUMMARY
[0004] The utility model aims to provide a kind of rotary rope saw and anti-clip rope device, to prevent the rotary rope saw from clamping rope when cutting the pipeline, and ensure smooth retreat of the saw after cutting. The purpose is achieved by the following technical solutions:
[0005] The utility model provides a kind of anti-clip rope device for rotary rope saw, the anti-clip rope device includes:
[0006] A mounting seat is installed on the rotating arm of the rotary rope saw.
[0007] A sliding rod is movably installed on the mounting seat at one end in the extension direction of the sliding rod, and the other end of the sliding rod is installed with a support.
[0008] An adapter seat is rotatably connected with the support around a rotating shaft, and a positioning structure is provided between the adapter seat and the support, and the extension direction of the rotating shaft is perpendicular to the extension direction of the sliding rod.
[0009] A clamping block is detachably installed on the adapter seat by a release structure, and a wedge-shaped part of the clamping block is used to embed into the cut of the cut pipeline.
[0010] In the working process, the anti-roping device is installed on the rotating arm and moves with the rotating arm during cutting. After the cutting rope cuts the sea pipe to form a cut, the clamping block moves to the cut position and is embedded in the cut. Then the rotating arm continues to move in the cutting feed direction, and the mounting seat moves in the feed direction synchronously with the rotating arm, while the mounting seat moves freely along the axial direction of the slide rod relative to the fixed clamping block, and the clamping block stays in the cut to support the cut to avoid the cut from retracting to cause the cutting rope to be clamped. After the cutting is completed, the rotating arm moves reversely, and the mounting seat moves reversely and resets with the rotating arm. The rotating arm continues to move reversely to drive the slide rod and the clamping block installed on the slide rod to move and finally disengage from the cut to realize the retreat sawing. If the clamping force of the cut on the clamping block is too large to cause the clamping block to disengage from the cut, the clamping block can be separated from the adapter seat through the release structure, the clamping block stays in the cut, and the adapter seat, the slide rod and the mounting seat exit the cutting position together with the rotating arm to realize the retreat sawing operation. In this way, the anti-roping device not only prevents the rotating rope saw from roping during cutting of the sea pipe, but also ensures smooth retreat sawing after cutting is completed.
[0011] In some embodiments, the mounting seat comprises:
[0012] A mounting plate, which is detachably connected with the rotating arm;
[0013] A guide plate, which is provided with a guide hole, and the slide rod passes through the guide hole.
[0014] In some embodiments, the guide plate is two, and the two guide plates are arranged at intervals. The mounting seat further comprises:
[0015] A guide tube, which is arranged between the two guide plates, and the slide rod passes through the guide tube.
[0016] In some embodiments, a spring is sleeved on the slide rod, one end of the spring abuts against the mounting seat, and the other end of the spring is installed on the slide rod through a fixing structure.
[0017] In some embodiments, the fixing structure comprises:
[0018] A fixing groove, which is arranged in the circumferential direction of the slide rod;
[0019] A retaining ring, which is detachably clamped in the fixing groove;
[0020] A gasket, which is installed on the retaining ring, and the other end of the spring is fixed on the gasket.
[0021] In some embodiments, the fixing groove is a plurality of, and each fixing groove is arranged at intervals along the axial direction of the slide rod. The fixing plate is detachably clamped in any fixing groove.
[0022] In some embodiments, the positioning structure comprises:
[0023] Positioning grooves are formed on the plane of the support towards the adapter, and the positioning grooves are distributed on the circumferential surface with the rotation shaft as the center;
[0024] A first spring pin is axially movably installed in the first pin hole, and the first spring pin is fixed with any of the positioning grooves when in the ejected state.
[0025] In some embodiments, a receiving groove is formed on the adapter, and the fixed part of the clamping block is inserted into the receiving groove; a stop block is arranged on the clamping block, and the stop block abuts against the adapter when the clamping block is in the installed state.
[0026] In some embodiments, the releasing structure comprises:
[0027] Two second spring pins are axially correspondingly and movably installed in the second pin holes on the two side walls of the receiving groove;
[0028] A stepped groove is arranged on the two sides of the clamping block, and the stepped groove comprises a guide inclined surface, a limiting platform and an installation groove in sequence in the installation direction of the second spring pin, and the second spring pin is clamped in the installation groove when in the ejected state relative to the second pin hole.
[0029] The utility model also provides a rotary rope saw, which comprises:
[0030] The anti-pinch rope device is installed on the rotating arm of the rotary rope saw. BRIEF DESCRIPTION OF DRAWINGS
[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a further understanding of the preferred embodiments and are incorporated in and constitute a part of this specification. It will be appreciated that for simplicity and clarity of illustration, elements drawn in the drawings are not necessarily shown to scale. In the drawings:
[0032] Figure 1 One of the structural schematic diagrams of the anti-pinch rope device according to the embodiments of the utility model is schematically shown;
[0033] Figure 2 The second structural schematic diagram of the anti-pinch rope device according to the embodiments of the utility model is schematically shown;
[0034] Figure 3 A structural schematic view of a sliding rod according to the embodiment of the present application is shown schematically;
[0035] Figure 4 A structural schematic view of an adapter seat and a clamping block assembly according to the embodiment of the present application is shown schematically;
[0036] Figure 5 A structural schematic view of an adapter seat according to the embodiment of the present application is shown schematically;
[0037] Figure 6 A structural schematic view of a clamping block according to the embodiment of the present application is shown schematically;
[0038] Figure 7 A structural schematic view of an anti-pinch rope device in a use state according to the embodiment of the present application is shown schematically;
[0039] Figure 8 A partial sectional view of an anti-pinch rope device according to the embodiment of the present application is shown schematically;
[0040] Figure 9 A sectional view of a second spring pin according to the embodiment of the present application is shown schematically;
[0041] Figure 10 A partial sectional view of an anti-pinch rope device according to the embodiment of the present application is shown schematically;
[0042] Figure 11 A structural schematic view of a support according to the embodiment of the present application is shown schematically.
[0043] The reference signs are as follows:
[0044] 100-rotating arm, 200-sea pipe, 300-cutout;
[0045] 1-mounting seat;
[0046] 2-sliding rod, 21-fixing groove, 22-stop ring, 23-gasket, 24-pin hole, 25-split pin;
[0047] 3-support, 31-positioning groove;
[0048] 4-adapter seat, 41-receiving groove;
[0049] 5-clamping block, 51-stop block, 52-step groove, 521-guiding inclined surface, 522-limiting table, 523-mounting groove;
[0050] 6-rotating shaft, 7-spring, 8-first spring pin, 9-second spring pin. DETAILED DESCRIPTION
[0051] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0052] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.
[0053] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.
[0054] For ease of description, spatially relative terms can be used herein for the purpose of illustrating one element's or feature's relationship to another element or feature as shown in the figures. Such spatially relative terms include "internal", "external", "inward", "outward", "stern", "forward", "above", "below", "lower", "upper", and the like. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0055] Reference is made to Figures 1-11 The anti-roping device is used for a rotating rope saw, especially for cutting a large submarine pipeline 200, and is an auxiliary tool installed on the rotating rope saw to reduce or avoid the phenomenon of rope clamping at the cutting opening due to uneven force on the diamond wire rope during the cutting process. The anti-roping device comprises a mounting seat 1, a sliding rod 2, an adapter seat 4 and a clamping block 5. The mounting seat 1 is installed on the rotating arm 100 of the rotating rope saw, and is a key component for connecting the anti-roping device and the rotating rope saw. It is fixed on the rotating arm 100 of the cutting saw to ensure the stability of the installation of the entire device and the cutting saw and to realize the follow-up movement of the device and the rotating arm 100.
[0056] One end of the sliding rod 2 is movably installed on the mounting seat 1 in the extension direction of the sliding rod 2, and the other end of the sliding rod 2 is provided with a support 3. In other words, the mounting seat 1 can slide along the sliding rod 2. When the clamping block 5 has been embedded in the cutting opening 300, the mounting seat 1 can move relative to the sliding rod 2, the rotating arm 100 on the sliding rod 2 and the clamping block 5 to avoid interference of the clamping block 5 and other structures with the operation of the cutting saw.
[0057] The adapter seat 4 is rotatably connected with the support 3 around a rotating shaft 6, so that the angular position between the clamping block 5 and the rotating arm 100 can be adjusted to adapt to the cutting operation of submarine pipelines 200 with different diameters and to adjust the initial embedding angle of the clamping block 5 relative to the cutting opening 300. Meanwhile, a positioning structure is arranged between the adapter seat 4 and the support 3, and the extension direction of the rotating shaft 6 is perpendicular to the extension direction of the sliding rod 2. When the clamping block 5 is adjusted to a proper position, the clamping block 5 is fixed by the positioning structure.
[0058] The fixed part of the clamp block 5 is detachably mounted on the adapter 4 through a releasing structure, and the wedge-shaped part of the clamp block 5 is used to be embedded in the cut 300 of the cut sea pipe 200; the detachable connection of the clamp block 5 and the adapter 4 not only facilitates replacement and maintenance, but also enables the clamp block 5 to be released from the adapter 4 when the clamp block 5 cannot be withdrawn, so that the clamp block 5 is separated from the adapter 4, that is, the clamp block 5 is separated from other parts of the anti-pinch rope device, and other parts of the anti-pinch rope device can be withdrawn with the cutting saw, which ensures smooth saw withdrawal in special cases and ensures reuse of other parts of the anti-pinch rope device.
[0059] In the working process, the anti-pinch rope device is installed on the rotating arm 100 and moves with the rotating arm 100 during cutting. After the cutting rope cuts the sea pipe 200, the cut 300 is formed, and then the clamp block 5 moves to the position of the cut 300 and is embedded in the cut 300. Then the rotating arm 100 continues to move in the cutting feed direction, and the mounting seat 1 moves in the feed direction synchronously with the rotating arm 100, while the mounting seat 1 moves freely along the axis of the slide rod 2 relative to the clamp block 5 which is fixed in position, and the clamp block 5 remains in the cut 300 to support the cut 300 and avoid the cut 300 from retracting to cause the cutting rope to be pinched. After cutting is completed, there are three cases. Case one, the rope saw successfully completes cutting to cut the sea pipe, and the cut sea pipe can be smoothly removed, the cut 300 can no longer restrict the movement of the clamp block 5, and the clamp block 5 continues to remain in the adapter 4. Case two, a power failure or cutting rope breakage occurs during cutting, and the rope saw fails to completely cut the sea pipe, but due to factors such as good rigidity of the sea pipe and small external load, the clamp block 5 can be separated from the cut 300 with a gap. Case three, the rope saw fails to completely cut the sea pipe, and the clamp block 5 is stuck in the cut 300 and cannot be separated. For case one and case two, when the clamp block 5 can move freely, the rotating arm 100 moves reversely, the mounting seat 1 moves reversely with the rotating arm 100 and returns to the original position, and the rotating arm 100 continues to move reversely to drive the slide rod 2 and the clamp block 5 mounted on the slide rod 2 to move and finally separate from the cut 300, thereby achieving saw withdrawal. For case three, if the clamp block 5 cannot be separated from the cut 300 due to large clamping force of the cut 300 on the clamp block 5, the clamp block 5 can be separated from the adapter 4 through the releasing structure, and the clamp block 5 remains in the cut 300, and the adapter 4, the slide rod 2 and the mounting seat 1 are withdrawn from the cutting position together with the rotating arm 100 (note: in this case, the cutting rope needs to be cut by external intervention to avoid the cutting rope being stuck in the clamp block 5 clamped by the cut 300 during saw withdrawal), thereby achieving saw withdrawal. In this way, the anti-pinch rope device not only prevents the rotating rope saw from pinching the rope during cutting of the sea pipe 200, but also ensures smooth saw withdrawal after cutting is completed.
[0060] In some embodiments, the mounting base 1 comprises a mounting plate and a guide plate, the mounting plate is detachably connected with the rotating arm 100, for example, a plurality of mounting holes can be formed on the mounting plate, and the mounting plate is reliably connected with the rotating arm 100 by means of bolts passing through the mounting holes. In order to realize the directionality of the movement of the mounting base 1 along the slide rod 2, a guide hole is formed on the guide plate, and the slide rod 2 passes through the guide hole; that is, the mounting base 1 is sleeved on the slide rod 2 through the guide hole, and the end of the slide rod 2 away from the support 3 passes through the guide hole. In order to avoid the mounting base 1 from falling off the slide rod 2, at least one pin hole 24 can be formed on a part of the rod segment of the slide rod 2, after the slide rod 2 passes through the guide hole, the pin hole 24 is formed on the rod segment of the slide rod 2 away from the support 3 and protruding from the mounting base 1, and the opening pin 25 passes through the pin hole 24, thereby limiting the mounting base 1 and the slide rod 2.
[0061] Further, the guide plate is two, the two guide plates are arranged at intervals, and the mounting base 1 can further comprise a guide pipe, the guide pipe is arranged between the two guide plates, and the slide rod 2 passes through the guide pipe, the slide rod 2 is limited in the guide pipe, and has better guide effect.
[0062] In actual use, the mounting base 1 and the slide rod 2 move relative to each other, therefore, in order to make the mounting base 1 reset in time after the external force disappears, a reset structure can be arranged between the mounting base 1 and the slide rod 2. Specifically, the reset structure can be a spring 7 sleeved on the slide rod 2, one end of the spring 7 abuts against the mounting base 1, and the other end of the spring 7 is mounted on the slide rod 2 by means of a fixing structure. When the clamping block 5 is embedded in the cutout 300, the clamping block 5, the adapter base 4, the support 3 and the slide rod 2 are all fixed relative to the marine pipe 200, and the mounting base 1 continues to feed with the rotating arm 100, the spring 7 is compressed, so that the mounting base 1 can move relative to the slide rod 2; when the saw is withdrawn, the mounting base 1 resets with the rotating arm 100, the spring 7 resets, and applies a reset force to the mounting base 1, thereby assisting the mounting base 1 to reset.
[0063] The fixing structure comprises a fixing groove 21, a retaining ring 22 and a gasket 23. The fixing groove 21 is arranged on the circumference of the slide rod 2. The retaining ring 22 is detachably clamped in the fixing groove 21. The gasket 23 is installed on the retaining ring 22. The other end of the spring 7 is fixed to the gasket 23. In order to adjust the installation position of the spring 7 to adapt to different use scenarios, the larger the diameter of the cut-off submarine pipeline, the farther the initial distance between the clamping block 5 and the cutting rope, and the smaller the diameter of the cut-off submarine pipeline, the closer the initial distance between the clamping block 5 and the cutting rope should be. The fixing groove 21 is provided in multiple numbers. Each fixing groove 21 is arranged along the axial direction of the slide rod 2. The retaining ring 22 is detachably clamped in any fixing groove 21. In theory, the fixing structure is not limited to the above structure. It can also be other structures that can fix one end of the spring 7 to the slide rod 2, such as a pin.
[0064] In order to adapt to submarine pipelines 200 of different diameters and adjust the initial angle of the clamping block 5 when entering the cutout 300, the positioning structure needs to be able to adjust the installation position in the horizontal direction. Specifically, the positioning structure comprises a positioning groove 31 and a first spring pin 8. The positioning groove 31 is arranged on the plane of the support 3 facing the adapter seat 4. The positioning groove 31 is provided in multiple numbers. Each positioning groove 31 is distributed on the circumferential surface with the rotating shaft 6 as the center. A vertical first pin hole is arranged on the adapter seat 4. The first spring pin 8 is axially movably installed in the first pin hole. When the first spring pin 8 is in the ejected state, it is fixed with any positioning groove 31. The number and spacing of the positioning grooves 31 can be adjusted as needed.
[0065] In this embodiment, five first pin holes can be arranged. In the working process, for submarine pipelines 200 of different diameters, different initial positions are determined by selecting the first pin hole in which the first spring pin 8 is installed, so that the clamping block 5 can adapt to the position requirements of submarine pipelines 200 of different diameters.
[0066] Further, a containing groove 41 is arranged on the adapter seat 4. The fixed part of the clamping block 5 is inserted into the containing groove 41. A clamping block 51 is arranged on the clamping block 5. When the clamping block 5 and the adapter seat 4 are in the installed state, the clamping block 51 abuts against the adapter seat 4 to limit the installation of the clamping block 5. After the clamping block 5 enters the cutout 300, the clamping block 51 finally abuts against the pipe wall on both sides of the cutout 300 to limit the further movement of the clamping block 5, ensuring that only the front part of the clamping block 5 is in the cutout.
[0067] In some embodiments, the releasing structure comprises second spring pins 9 and stepped slots 52, second pin holes extending transversely are respectively formed in the two side walls of the accommodating slot 41, the second spring pins 9 are two in number, axially corresponding to the second pin holes and movably installed in the second pin holes; the stepped slots 52 are arranged on the two sides of the clamping block 5, and in the installation direction of the second spring pins 9, the stepped slots 52 successively comprise guide inclined surfaces 521, limiting tables 522 and installation slots 523, and the second spring pins 9 are clamped in the installation slots 523 when the second spring pins 9 are in the ejected state relative to the second pin holes.
[0068] In the initial state, the second spring pins 9 are installed in the installation slots of the stepped slots 52, and the clamping block 5 is clamped and fixed in the accommodating slot 41 by the two second spring pins 9 on the two sides; in the process of withdrawing the saw, when the pulling force applied by the slide rod 2 to the clamping block 5 is greater than the clamping force of the notch 300 on the clamping block 5, the clamping block 5 can be pulled out of the notch 300, at which time the clamping block 5 exits together with the device; when the maximum pulling force applied by the slide rod 2 to the clamping block 5 is less than the clamping force of the notch 300 on the clamping block 5, the clamping block 5 is clamped by the notch 300 and cannot exit, at which time the slide rod 2 continues to apply force to overcome the clamping force of the second spring pins 9 on the clamping block 5, the clamping block 5 is pulled out of the stepped slots 52 and separated from the adapter seat 4, the clamping block 5 remains at the notch 300, and the other parts of the device exit together with the cutting saw. In this way, by arranging the releasing structure, when the clamping block 5 cannot be pulled out of the notch 300 in special circumstances, the recycling of the other parts of the device can be completed. Due to manufacturing and installation errors of the equipment, deformation of the marine pipeline in the cutting process, sawing motion of the rope saw, impact of the ocean current on the seabed, and other factors, the clamping block 5 and the notch 300 can be offset in position. The front end of the clamping block 5 is wedge-shaped, has an inclined surface and is thin at the end, facilitating smooth entry of the clamping block 5 into the notch 300 and playing a guiding role, so as to improve the adaptability of the clamping block 5 to the offset position relative to the notch 300.
[0069] In addition to the above-mentioned anti-pinch rope device, the utility model also provides a rotary rope saw comprising the anti-pinch rope device, and other structures of the rotary rope saw can be referred to the prior art and will not be repeated here.
[0070] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. An anti-roping device for a rotary rope saw, characterized in that, The anti-pinch rope device comprises: a mounting seat mounted on a rotating arm of the rotating rope saw; a slide rod, one end of which is movably mounted on the mounting seat in the extension direction of the slide rod, and the other end of which is provided with a support; an adapter seat, which is rotatably connected with the support around a rotating shaft, and is provided with a positioning structure between the adapter seat and the support, the extension direction of the rotating shaft being perpendicular to the extension direction of the slide rod; a clamping block, a fixed part of which is detachably mounted on the adapter seat through a release structure, and a wedge-shaped part of which is used for embedding into a cut of a cut-off submarine pipeline.
2. The rope guard device of claim 1, wherein, The mounting seat comprises: a mounting plate, which is detachably connected with the rotating arm; a guide plate, which is provided with a guide hole, and the slide rod passes through the guide hole.
3. The rope guard device of claim 2, wherein, The guide plate is provided with two guide plates, which are spaced apart, and the mounting seat further comprises: a guide tube, which is arranged between the two guide plates, and the slide rod passes through the guide tube.
4. The rope guard device of claim 1, wherein, A spring is arranged on the slide rod, one end of the spring abuts against the mounting seat, and the other end of the spring is mounted on the slide rod through a fixing structure.
5. The rope guard device of claim 4, wherein, The fixing structure comprises: a fixing groove, which is arranged on the circumference of the slide rod; a stop ring, which is detachably clamped in the fixing groove; a gasket, which is mounted on the stop ring, and the other end of the spring is fixed on the gasket.
6. The rope guard device of claim 5, wherein, The fixing groove is provided with a plurality of fixing grooves, which are arranged along the axial direction of the slide rod, and the fixing plate is detachably clamped in any one of the fixing grooves.
7. The rope guard device of any one of claims 1-6, wherein, The positioning structure comprises: a positioning groove, which is arranged on the plane of the support facing the adapter seat, and is provided with a plurality of positioning grooves, which are distributed on the circumferential surface with the rotating shaft as the center; a first spring pin, which is arranged on the adapter seat and vertically extends, and is axially movably mounted in the first pin hole, and is fixed with any one of the positioning grooves when the first spring pin is in the ejected state.
8. The rope guard device of any one of claims 1-6, wherein, The adapter seat is provided with a receiving groove, and the fixed part of the clamping block is inserted into the receiving groove; the clamping block is provided with a stop block, and the stop block abuts against the adapter seat when the clamping block is in the mounted state.
9. The rope guard device of claim 8, wherein, The release structure comprises: a second spring pin, which is arranged on the two side walls of the receiving groove and horizontally extends, and is provided with two second spring pins, which are axially corresponding and movably mounted in the second pin hole; a stepped groove, which is arranged on the two sides of the clamping block, and comprises a guide slope, a limiting table and a mounting groove in the mounting direction of the second spring pin, and the second spring pin is clamped in the mounting groove when the second spring pin is in the ejected state relative to the second pin hole.
10. A rotary rope saw, characterized in that It comprises: the anti-pinch rope device according to any one of claims 1-9, which is mounted on the rotating arm of the rotating rope saw.