Scratch-proof device for heating furnace pipeline

Abstract

The utility model relates to the technical field of heating furnaces, and provides a heating furnace pipeline scratch-proof device, which comprises a plurality of outer lining plates, the plurality of outer lining plates are detachably arranged, the plurality of outer lining plates are combined to form an annular space, the annular space is sleeved on the heating furnace pipeline, and a base is used for supporting the outer lining plates; the first connecting block is provided with a butt joint groove and a clamping groove; the first connecting block and the second connecting block are located at the two ends of different outer lining plates or located at the two ends of the same outer lining plate respectively, the second connecting block is provided with a convex part, and after the multiple outer lining plates form an annular space, the convex part enters the butt joint groove; the sliding piece is arranged on the protruding part in a sliding mode, and the sliding piece is clamped with or loosened from the clamping groove after sliding. By means of the technical scheme, the problems that in the prior art, disassembly is inconvenient, and installation and later maintenance are complex are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating furnace technical field, specifically, relate to a kind of heating furnace pipeline scratch prevention device. BACKGROUND

[0002] Heating furnace pipeline is one of important equipment of rolling mill, and its integrity is crucial for the safe and stable operation of the entire production line, if the surface of the pipeline is scratched, it may damage the anticorrosive layer of the pipeline, accelerate the corrosion of the pipeline, and further cause safety hazards such as leakage, so it is necessary to coat the outside of the heating furnace pipeline to prevent it from being scratched during transportation and use. The existing heating furnace pipeline scratch prevention device is generally composed of the outermost rigid guard plate and the inner multi-layer flexible or flexible coating.

[0003] The prior art involves a Chinese patent CN214308183U, which discloses a heating furnace pipeline scratch prevention structure, which includes a first filter screen plate, a second filter screen plate and two supports. The two supports are fixed on the outer circumferential surface of the heating furnace pipeline at both ends, and the first filter screen plate and the second filter screen plate are sequentially arranged on the outer circumferential surface of the heating furnace pipeline and located between the two supports. The two ends of the first filter screen plate and the second filter screen plate are respectively detachably connected with the two supports. The second filter screen plate is arranged at a distance from the first filter screen plate to form a containing cavity therebetween, and a plurality of shock absorbers are arranged in the containing cavity. By arranging the first filter screen plate and the second filter screen plate, the heating furnace pipeline is protected once, and by arranging a plurality of shock absorbers between the second filter screen plate and the first filter screen plate, the heating furnace pipeline is protected twice, so that the heating furnace pipeline is not easily damaged, and the service life of the heating furnace pipeline is guaranteed. However, this patent has the problems of inconvenient disassembly and poor applicability in actual use. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of heating furnace pipeline scratch prevention device, solve the problem of inconvenient disassembly in related art, leading to installation and later maintenance complex.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of heating furnace pipeline scratch prevention device, comprising:

[0007] A base;

[0008] An outer lining plate, there are several, several outer lining plates are detachably arranged between each other, and several outer lining plates are combined to form an annular space after combination, and the heating furnace pipeline is located in the annular space. The base is used to support the outer lining plate;

[0009] A first connecting block has a butt joint groove and a clamping groove;

[0010] A second connecting block, the first connecting block and the second connecting block are respectively located at different ends of the outer lining plate or are respectively located at both ends of the same outer lining plate, the second connecting block has a protruding part, after a plurality of outer lining plates form a ring-shaped space, the protruding part enters the butt joint groove;

[0011] A sliding part is slidingly arranged on the protruding part, and the sliding part is clamped or released after sliding.

[0012] Optionally, the outer lining plate has two, the first connecting block has two, and the first connecting block is arranged at both ends of one outer lining plate, and the second connecting block has two, and the second connecting block is arranged at both ends of another outer lining plate.

[0013] Optionally, the first connecting block and the second connecting block each have a plurality of, and one first connecting block and one second connecting block are arranged at both ends of the outer lining plate.

[0014] Optionally, further comprising:

[0015] A first elastic member is arranged at both ends of the sliding part and the protruding part, and the first elastic member is used to provide a force for the sliding part to slide into the clamping groove.

[0016] Optionally, the sliding part has two, and the two sliding parts are close to or away from each other after sliding, and the sliding part is clamped with the clamping groove after the two sliding parts are away from each other, and further comprising:

[0017] A second elastic member is arranged at both ends of the two sliding parts, and the second elastic member is used to provide a force for the two sliding parts to be away from each other.

[0018] Optionally, the sliding part has a clamping part and a pushing part at both ends, the clamping part is used to clamp with the clamping groove, and the pushing part is used to be pushed by a person.

[0019] Optionally, further comprising:

[0020] An inner lining plate has a plurality of, and a plurality of inner lining plates are arranged on the inner side of a plurality of outer lining plates;

[0021] A plurality of buffer pads are arranged on the inner side of a plurality of inner lining plates.

[0022] Optionally, further comprising:

[0023] A supporting member is arranged on the base, and the base supports the outer lining plate through the supporting member;

[0024] An anti-skid strip is arranged on the supporting member, and the anti-skid strip is used to abut against the outer lining plate.

[0025] Optionally, the support member is ellipsably mounted on the base, the support member has a sliding groove, and further includes:

[0026] The guide post has one end mounted on the base and the other end located in the groove.

[0027] Optionally, it also includes:

[0028] The worm gear is rotatably mounted on the base.

[0029] A worm gear is rotatably mounted on the base, and the worm is connected to the worm gear via a transmission.

[0030] The lead screw has one end mounted on the worm gear and the other end threadedly connected to the support member. The rotation axis of the lead screw is parallel to the lifting direction of the support member.

[0031] The working principle and beneficial effects of this utility model are as follows:

[0032] In this invention, the sliding member is mounted on the protrusion via a slide rail or slide groove, allowing for smooth sliding. When fixation is required, the protrusion is located within the mating groove, and the sliding member slides to engage with the locking groove. When disassembly is required, the sliding member is slid to release the locking groove. The engagement method between the sliding member and the locking groove can be that the sliding member enters or leaves the locking groove, and the sliding direction of the sliding member is perpendicular to the direction in which the protrusion enters or leaves the mating groove.

[0033] The detachable design of the outer liner makes installation and subsequent maintenance more flexible and convenient, reducing operational complexity and difficulty. The fit between the protrusion and the mating groove ensures accurate and convenient positioning of the outer liner components. The cooperation of the first connecting block, the second connecting block, and the sliding component enables quick and stable connection and disassembly of the outer liner components, improving work efficiency. The supporting base ensures the stability of the entire device and enhances the protection of the heating furnace piping. Attached Figure Description

[0034] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This is an exploded view of a portion of the structure of this utility model;

[0037] Figure 3 This is a schematic diagram of the structure of the first connecting block and the second connecting block of this utility model;

[0038] Figure 4This utility model Figure 3 A schematic diagram of the cross-sectional structure;

[0039] Figure 5 This is a schematic diagram of the internal structure of the support component and base of this utility model.

[0040] In the diagram: 1. Base; 3. Outer liner; 8. First connecting block; 801. Docking groove; 802. Snap-fit ​​groove; 6. Second connecting block; 601. Protrusion; 7. Sliding part; 702. Second elastic part; 701. Snap-fit ​​part; 703. Actuating part; 4. Inner liner; 5. Buffer pad; 2. Supporting part; 201. Anti-slip strip; 202. Slide groove; 11. Guide column; 901. Worm gear; 10. Worm wheel; 1001. Lead screw; 9. Operating handwheel. Detailed Implementation

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0042] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0043] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Reference Figures 1-5This utility model proposes a scratch-resistant device for heating furnace pipes, including an outer liner plate 3, of which there are several outer liner plates 3, which are detachably arranged together. The several outer liner plates 3 are combined to form an annular space, in which the heating furnace pipe is located. A base 1 is used to support the outer liner plates 3. A first connecting block 8 has a docking groove 801 and a snap-fit ​​groove 802. The first connecting block 8 and the second connecting block 6 are located at the two ends of different outer liner plates 3 or at the two ends of the same outer liner plate 3. The second connecting block 6 has a protrusion 601. After the several outer liner plates 3 form an annular space, the protrusion 601 enters the docking groove 801. A sliding member 7 is slidably arranged on the protrusion 601. After sliding, the sliding member 7 engages with or disengages from the snap-fit ​​groove 802.

[0046] In this embodiment, the outer liner 3 is made of high-strength, wear-resistant material, and its quantity is selected according to actual needs. The outer liner 3 is arc-shaped, and the outer liner 3 are connected end to end by a detachable connection to form a complete annular space, which is fitted onto the heating furnace pipe. The base 1 is made of a sturdy material and is fixed in a suitable position by welding or bolting to stably support the outer liner 3. The first connecting block 8 and the second connecting block 6 are respectively and firmly installed at both ends of the outer liner 3, and the number of the first connecting block 8 and the second connecting block 6 is the same as the number of outer liner 3. Depending on the number of outer liner 3, the setting positions of the first connecting block 8 and the second connecting block 6 are divided into two cases: when there are two outer liner 3, the first connecting block 8 and the second connecting block 6 can be located at the ends of two different outer liner 3, or one first connecting block 8 and one second connecting block 6 can be set at each end of the same outer liner 3. When there are more than two outer liner 3, one first connecting block 8 and one second connecting block 6 are set at each end of each outer liner 3. When multiple outer liner plates 3 form an annular space, the protrusion 601 of the second connecting block 6 is inserted into the mating groove 801 of the first connecting block 8.

[0047] The sliding member 7 is mounted on the protrusion 601 via a slide rail or slide groove 202, allowing for smooth sliding. When fixation is required, the protrusion is located within the mating groove 801, and the sliding member 7 slides to engage with the locking groove 802; when disassembly is required, the sliding member 7 is slid to release the locking groove 802. The engagement method between the sliding member 7 and the locking groove 802 can be that the sliding member 7 enters or leaves the locking groove 802, and the sliding direction of the sliding member 7 is perpendicular to the direction in which the protrusion enters or leaves the mating groove 801.

[0048] The detachable design of the outer liner plate 3 makes the installation and subsequent maintenance of the device more flexible and convenient, reducing the complexity and difficulty of operation. The cooperation between the protrusion 601 and the mating groove 801 ensures accurate and convenient positioning of the outer liner plates 3. Through the cooperation of the first connecting block 8, the second connecting block 6, and the sliding member 7, quick and stable connection and disassembly of the outer liner plates 3 are achieved, improving work efficiency. The supporting role of the base 1 ensures the stability of the entire device and enhances the protection of the heating furnace pipeline.

[0049] For example, such as Figures 2-4 As shown, the outer liner 3 has two parts, the first connecting block 8 has two parts, which are respectively disposed at both ends of one outer liner 3, and the second connecting block 6 has two parts, which are respectively disposed at both ends of the other outer liner 3.

[0050] In this embodiment, both outer liner plates 3 are made of high-strength and wear-resistant materials. A first connecting block 8 is fixedly installed at each end of one outer liner plate 3, and a second connecting block 6 is fixedly installed at each end of the other outer liner plate 3. During installation, the two outer liner plates 3 are placed opposite each other, so that the first connecting block 8 at one end of one outer liner plate 3 corresponds to the second connecting block 6 at one end of the other outer liner plate 3. The protrusion 601 of the second connecting block 6 is inserted into the mating groove 801 of the first connecting block 8, and then the sliding member 7 on the protrusion 601 is slid to engage with the locking groove 802, thereby achieving a stable connection between the two outer liner plates 3.

[0051] This structural design is simple and straightforward. The two outer liner plates 3 are detachably connected via specific connecting blocks and sliding parts 7, facilitating installation and disassembly and improving operational convenience. It reduces the number of connecting parts, lowers costs, and also reduces the risk of malfunctions that might result from too many components. The combination of the two outer liner plates 3 provides effective protection for the heating furnace piping and allows for quick maintenance or replacement when necessary.

[0052] Furthermore, there are two sliders 7. After sliding, the two sliders 7 move closer to each other or further away from each other. After the two sliders 7 move further away from each other, the sliders 7 engage with the locking groove 802. It also includes a first elastic member 702. The two ends of the first elastic member 702 are respectively disposed on the two sliders 7. The first elastic member 702 is used to provide a force for the two sliders 7 to move away from each other.

[0053] In this embodiment, two sliding members 7 are provided, which are installed on the protrusion 601 via a slide rail or slide groove 202, allowing them to slide relative to each other. When the protrusion 601 is inserted into the mating groove 801, the elastic force of the first elastic member 702 will push the two sliding members 7 away from each other. When the two sliding members 7 are far apart to a certain extent, they engage with the locking groove 802, thus completing the fixation. When disassembly is required, the elastic force of the first elastic member 702 is manually overcome, and the two sliding members 7 are brought closer together, causing them to disengage from the locking groove 802. The two sliding members 7 engaging with each other by moving away from each other under the action of the first elastic member 702 increases the stability and reliability of the engagement.

[0054] Furthermore, the two ends of the slider 7 have a locking part 701 and a toggle part 703, respectively. The locking part 701 is used to lock into the locking groove 802, and the toggle part 703 is used for manual toggle.

[0055] In this embodiment, the slider 7 has a locking portion 701 and a toggle portion 703 clearly designed at both ends. The shape and size of the locking portion 701 match the locking groove 802 to ensure a secure locking. The shape and size of the toggle portion 703 are designed to facilitate toggle operation by a person using their fingers or tools.

[0056] Furthermore, it also includes an inner lining plate 4, of which there are several inner lining plates 4, which are respectively disposed inside the several outer lining plates 3; and a buffer pad 5, of which there are several buffer pads 5, which are respectively disposed inside the several inner lining plates 4.

[0057] In this embodiment, the inner lining plate 4 is made of a material with certain flexibility and cushioning properties, and its quantity is the same as that of the outer lining plate 3. Each inner lining plate 4 is tightly fitted and installed inside the corresponding outer lining plate 3. Buffer pads 5 are also provided according to the number of inner lining plates 4, and are securely installed inside each inner lining plate 4. Buffer pads 5 can be made of materials with good cushioning effects, such as rubber or sponge. In actual use, the inner lining plate 4 and buffer pads 5 can provide more comprehensive protection for the heating furnace pipeline, reducing the impact and damage to the pipeline from external factors.

[0058] Furthermore, it also includes a support member 2, which is disposed on the base 1, and the base 1 supports the outer liner 3 through the support member 2; an anti-slip strip 201 is disposed on the support member 2, and the anti-slip strip 201 is used to abut against the outer liner 3.

[0059] In this embodiment, the support member 2 is fixed to the base 1 by welding, bolting, or other methods. The shape and size of the support member 2 are adapted to the outer liner plate 3 to achieve stable support. The anti-slip strip 201 is made of a material with a high coefficient of friction, such as rubber, and is installed at the contact point between the support member 2 and the outer liner plate 3. In the working state, the outer liner plate 3 is placed on the support member 2, and the anti-slip strip 201 is in close contact with the outer liner plate 3 to increase friction and prevent the outer liner plate 3 from sliding or shifting on the support member 2.

[0060] Furthermore, the support member 2 is lifted and mounted on the base 1. The support member 2 has a sliding groove 202 and also includes a guide post 11. One end of the guide post 11 is mounted on the base 1, and the other end is located in the sliding groove 202.

[0061] In this embodiment, the support member 2 is raised and lowered on the base 1 via a lifting mechanism. The lifting mechanism can be a hydraulic rod, an electric push rod, etc. The support member 2 is provided with a longitudinal groove 202. One end of the guide post 11 is fixedly installed on the base 1, and the other end is inserted into the groove 202 of the support member 2. When the support member 2 moves up and down, the guide post 11 slides within the groove 202, providing guidance and stability, ensuring that the support member 2 can rise and fall smoothly.

[0062] The lifting function of the support component 2 allows the device to adapt to heating furnace pipes of different heights, improving its versatility and applicability. The cooperation between the slide 202 and the guide column 11 ensures the stability and accuracy of the lifting process of the support component 2, preventing tilting or jamming. This adjustable design facilitates installation and maintenance, improving work efficiency.

[0063] Furthermore, it also includes a worm gear 901, which is rotatably mounted on the base 1; a worm wheel 10 is rotatably mounted on the base 1, and the worm gear 901 and the worm wheel 10 are connected in a transmission manner; one end of the lead screw 1001 is mounted on the worm wheel 10, and the other end is threadedly connected to the support member 2, and the rotation axis of the lead screw 1001 is parallel to the lifting direction of the support member 2.

[0064] In this embodiment, the worm 901 is mounted on the base 1 via bearings, allowing it to rotate freely. The worm wheel 10 is also mounted on the base 1 via bearings and meshes with the worm 901 to form a transmission connection. One end of the lead screw 1001 is fixed to the center of the worm wheel 10, and the other end is threadedly connected to a threaded hole on the support member 2. When the worm wheel 10 rotates, it drives the lead screw 1001 to rotate. Due to the threaded engagement between the lead screw 1001 and the support member 2, the support member 2 moves up and down along the axis of the lead screw 1001. In actual operation, by rotating the worm 901, the worm wheel 10 and the lead screw 1001 are driven to rotate, thereby achieving the adjustment of the support member 2's height to adapt to different working conditions.

[0065] The use of worm gear 901 and worm wheel 10 for transmission, along with a lead screw 1001 for threaded connection, enables precise lifting and lowering adjustments, ensuring the accuracy and stability of the support component 2's position. This transmission method features a large transmission ratio and self-locking performance, effectively preventing the support component 2 from moving on its own after adjustment, thus improving the reliability of the device. For ease of operation, a handwheel 9 can be added to one end of the worm gear 901.

[0066] During transportation or use, if the heating furnace pipes are suspended, the welded joints may be subjected to significant stress, leading to deformation and breakage. In this case, the base 1 can be placed on the ground or inside the vehicle, and the operating handwheel 9 can be turned. This will drive the worm wheel 10 to rotate through the worm gear 901 transmission mechanism, which is formed by the meshing of the worm wheel 10 and the worm 901. Guided by the guide column 11, the rotation of the worm wheel 10 will drive the support 2 to move upward through the threaded transmission mechanism formed by the lead screw 1001 and the support 2, so that the support 2 contacts the lower surface of the pipe, thereby supporting the pipe joint from below and preventing excessive stress that could lead to deformation or breakage. The anti-slip strip 201 is made of flexible silicone, which can increase the friction between the upper surface of the support 2 and the bottom of the outer liner 3 below, making it more stable to use. Moreover, the height-adjustable design of the support 2 makes it more widely applicable.

[0067] It should be further explained that, based on the equivalent technical solution devised in this solution, there are several of the first connecting block 8 and the second connecting block 6, and one first connecting block 8 and one second connecting block 6 are respectively provided at both ends of the outer liner plate 3.

[0068] In this embodiment, there are two or more outer liner plates 3. Each outer liner plate 3 has a first connecting block 8 and a second connecting block 6 at both ends. During installation, the two outer liner plates 3 are placed opposite each other, ensuring that the first connecting block 8 at one end of one outer liner plate 3 accurately corresponds to the corresponding second connecting block 6 at the other end of the other outer liner plate 3. The protrusion 601 of the second connecting block 6 is precisely inserted into the mating groove 801 of the first connecting block 8. Then, the sliding member 7 on the protrusion 601 is pushed to make it tightly engage with the locking groove 802, thereby achieving a firm and stable connection between the two outer liner plates 3.

[0069] This arrangement allows the outer liner 3 to be produced in a standardized manner, with the first connecting block 8 and the second connecting block 6 at both ends of each outer liner 3 having the same orientation.

[0070] It should be further explained that, according to the equivalent technical solution devised based on this solution, the slider 7 has one component and also includes a first elastic element 702. The two ends of the first elastic element 702 are respectively disposed on the slider 7 and the protrusion 601. The first elastic element 702 is used to provide the force for the slider 7 to slide into the locking groove 802.

[0071] In this embodiment, the first elastic element 702 can be a spring, with one end fixed to the sliding element 7 and the other end fixed to the protrusion 601. When the protrusion 601 is inserted into the mating groove 801, the elastic force of the first elastic element 702 will cause the sliding element 7 to automatically slide into the snap-fit ​​groove 802, achieving automatic snap-fit ​​fixation. When disassembly is required, the elastic force of the first elastic element 702 is manually overcome, and the sliding element 7 is slid to disengage it from the snap-fit ​​groove 802.

[0072] The first elastic element 702 enables the sliding element 7 to automatically engage, simplifying the installation process and improving installation efficiency. Utilizing elastic force for automatic engagement enhances the stability and reliability of the connection, reducing the likelihood of loose connections due to human error.

[0073] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for preventing scratches on heating furnace pipes, characterized in that, include: Base (1); The outer liner (3) has several, and the several outer liner (3) are detachably arranged with each other. The several outer liner (3) are combined to form an annular space. The heating furnace pipe is located in the annular space. The base (1) is used to support the outer liner (3). The first connecting block (8) has a mating groove (801) and a snap-fit ​​groove (802); The second connecting block (6) is located at the two ends of different outer liner plates (3) or at the two ends of the same outer liner plate (3). The second connecting block (6) has a protrusion (601). After a plurality of outer liner plates (3) form an annular space, the protrusion (601) enters the docking groove (801). The slider (7) is slidably disposed on the protrusion (601). After sliding, the slider (7) engages with or disengages from the locking groove (802).

2. The anti-scratch device for heating furnace pipes according to claim 1, characterized in that, The outer liner (3) has two parts, the first connecting block (8) has two parts, which are respectively disposed at both ends of one of the outer liner (3), and the second connecting block (6) has two parts, which are respectively disposed at both ends of the other outer liner (3).

3. The anti-scratch device for heating furnace pipes according to claim 1, characterized in that, There are multiple first connecting blocks (8) and second connecting blocks (6), and one first connecting block (8) and one second connecting block (6) are respectively provided at both ends of the outer liner (3).

4. The anti-scratch device for heating furnace pipes according to claim 1, characterized in that, Also includes: The first elastic element (702) is disposed at both ends on the slider (7) and the protrusion (601), respectively. The first elastic element (702) is used to provide the force for the slider (7) to slide into the snap-fit ​​groove (802).

5. The anti-scratch device for heating furnace pipes according to claim 1, characterized in that, The sliding member (7) has two parts. After the two sliding members (7) slide, they move closer to each other or further apart. After the two sliding members (7) move further apart, the sliding member (7) engages with the locking groove (802). The system also includes: The first elastic element (702) is disposed at both ends on the two sliding elements (7), and the first elastic element (702) is used to provide a force that moves the two sliding elements (7) away from each other.

6. The anti-scratch device for heating furnace pipes according to claim 1, characterized in that, The sliding member (7) has a locking part (701) and a toggle part (703) at both ends. The locking part (701) is used to lock into the locking groove (802), and the toggle part (703) is used to be toggleed by a person.

7. The anti-scratch device for heating furnace pipes according to claim 1, characterized in that, Also includes: The inner lining plate (4) is of several kinds, and the several inner lining plates (4) are respectively disposed on the inner side of the several outer lining plates (3); The buffer pads (5) are of several kinds, and the buffer pads (5) are respectively disposed on the inner side of the inner lining plates (4).

8. The anti-scratch device for heating furnace pipes according to claim 1, characterized in that, Also includes: Support member (2) is disposed on the base (1), and the base (1) supports the outer liner (3) through the support member (2). An anti-slip strip (201) is provided on the support member (2) and the anti-slip strip (201) is used to abut against the outer liner (3).

9. A scratch-resistant device for heating furnace pipes according to claim 8, characterized in that, The support member (2) is elliptically mounted on the base (1), and the support member (2) has a sliding groove (202), and further includes: The guide post (11) has one end set on the base (1) and the other end located in the groove (202).

10. A scratch-resistant device for heating furnace pipes according to claim 9, characterized in that, Also includes: The worm gear (901) is rotatably mounted on the base (1); A worm gear (10) is rotatably mounted on the base (1), and the worm (901) is connected to the worm gear (10) in a transmission connection. The lead screw (1001) has one end mounted on the worm gear (10) and the other end threadedly connected to the support member (2). The rotation axis of the lead screw (1001) is parallel to the lifting direction of the support member (2).

Images