Warning board for long-distance pipeline construction

Abstract

The utility model provides a long-distance pipeline construction warning board which comprises a box body, a warning assembly attached to the box body and a supporting assembly arranged below the box body and used for adjusting the height of the box body. The warning assembly comprises a transparent glass plate arranged on the front face of the box body, a drawing plate laterally entering and exiting the box body, a containing plate fixed to the drawing plate and used for containing warnings, and a normally-on bin arranged between the glass plate and the drawing plate and used for illuminating the warnings. According to the long-distance pipeline construction warning board, pedestrians and vehicles can notice the content of the warning board in foggy days or at night, dangerous behaviors are avoided, the safety of the device is improved, the warning board is prevented from being carried or ordered, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to long -distance pipeline construction technical field, concretely is a long -distance pipeline construction warning sign. BACKGROUND

[0002] Long -distance pipeline refers to the pipeline for conveying commodity medium between production place, storage, and use unit, which is very common in life, for example, in the long -distance pipeline gas storage process, gas companies of all countries utilize high -pressure gas transmission system to continuously improve the gas distribution capacity and gas storage capacity of the pipeline, which has the advantage of replacing expensive high -pressure gas storage container and additional dehydration workload. The design and calculation of gas storage capacity should adopt complex unstable flow calculation method, which is completely different from the conventional calculation method.

[0003] During the construction process, it is inevitable to experience foggy days, rainy days, and nights and other situations where the line of sight is blocked. The warning signs currently used in the construction site cannot be very eye-catching to passers-by and vehicles in various harsh conditions, and dangerous events are prone to occur in the construction site.

[0004] Near the construction site, different warning contents need to be issued for different situations, such as toxic gas, limited driving, and limited height, so the warning sign needs to be transported or reordered, which is time -consuming and labor -intensive, not only increases the construction cost, but also affects the work efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a long -distance pipeline construction warning sign to solve the problem that ordinary display boards are not eye -catching in the situation where the line of sight is blocked, pedestrians and vehicles easily ignore the warning sign, and different construction sites need different warning boards, and the lack of warning boards on site reduces work efficiency. In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] A long -distance pipeline construction warning sign, comprising a box body, a warning assembly attached to the box body, a supporting assembly arranged below the box body and used for adjusting the height of the box body, the warning assembly comprises a transparent glass plate arranged on the front face of the box body (the face facing the pedestrians and vehicles), a sliding plate sliding into and out of the box body, a placing plate fixed to the sliding plate and used for placing warning words, and a constant -lighting bin arranged between the glass plate and the sliding plate and used for illuminating the warning words.

[0007] Further, the box body can be, for example, a cuboid, the box body comprises a top plate, a bottom plate arranged parallel to the top plate, a back plate connected between the top plate and the bottom plate, and two side plates arranged parallel and used for connecting the back plate, the top plate and the bottom plate, the opposite face of the back plate forms a front opening, the glass plate covers the front opening, the glass plate can be, for example, tempered glass, one of the side plates is provided with a side opening, and the side opening is used for pushing and pulling the sliding plate into and out of the box body.

[0008] Further, the pull-out plate can be rectangular, for example, the length of the pull-out plate is consistent with the length of the box body, and a plurality of pulleys are arranged on the top and bottom of the pull-out plate and are spaced along the length direction of the pull-out plate, and the (vertical) center axis of the pulley is perpendicular to the length direction of the pull-out plate. The pull-out plate is preferably made of transparent material, including but not limited to acrylic or glass transparent material.

[0009] Further, the placement plate is fixedly connected to the front surface of the pull-out plate, and the length and width of the placement plate are smaller than those of the pull-out plate, for example, 5-10 cm smaller, and the placement plate is preferably made of transparent material, including but not limited to acrylic or glass transparent material.

[0010] Further, a hinge assembly is arranged on the pull-out plate around the placement plate, and a limiting buckle is connected to the hinge assembly. The limiting buckle can be a thin plate, for example, the end of the limiting buckle extends and abuts against the placement plate, and an opening is arranged on the top of the limiting buckle. The limiting buckles on both sides of the opening form a hinge block, and a through hole is arranged on the hinge block. The hinge assembly includes two hinge seats fixedly arranged on the pull-out plate and spaced apart, a hinge shaft arranged on the hinge seats, and a torsional spring sleeved on the hinge shaft. The torsional spring is arranged between the two hinge seats, and the torsional spring can be a double-arm torsional spring, for example. One of the extending arms of the torsional spring abuts against the placement plate, and the other extending arm abuts against the pull-out plate. The two ends of the hinge shaft pass through the through hole of the hinge block to realize the connection between the limiting buckle and the hinge seat. In specific use, under the torsional force of the torsional spring, the limiting buckle abuts against the placement plate, and the limiting buckle is rotated around the hinge shaft to be in an open state to place the warning words on the placement plate. The limiting buckle is released, and the torsional force of the torsional spring makes the limiting buckle abut against the warning words to fix the warning words on the placement plate. The warning words are made of hardboard, for example.

[0011] Further, the top plate and the bottom plate are fixedly provided with plate grooves corresponding in position, and a sliding groove for limiting the sliding direction of the pulley is arranged on the plate groove. The pulley slides along the sliding groove, and the pull-out plate is pushed into or pulled out of the box body.

[0012] Further, a color-changing lamp plate is arranged between the pull-out plate and the back plate, and a protective plate is arranged on the back surface of the color-changing lamp plate. The opposite surface of the protective plate to the color-changing lamp plate is preferably connected to the back plate of the box body, and the protective plate is used to protect the color-changing lamp plate from the influence of harsh environment.

[0013] Further, the constant light bin comprises light-emitting bulbs and light-transmitting plates connected between the two side plates of the box body, the light-transmitting plates are two and arranged one above the other, the upper light-transmiting plate forms a first space for accommodating the light-emitting bulbs together with the glass plate, the top plate and the placing plate, the lower light-transmiting plate forms a second space for accommodating the light-emitting bulbs together with the glass plate, the bottom plate and the placing plate, the light-emitting bulbs emit light to illuminate the warning words, the color of the warning content is adjusted through the cooperation between the color-changing lamp plate and the constant light bin, the warning content is more eye-catching, and the pedestrians and vehicles can notice the content of the warning board in the fog or at night, so that the dangerous behaviors are avoided.

[0014] Further, the support assembly comprises a base, a support column two fixed on the base, a support column one sleeved on the support column two and sliding along the support column two and connected with the box body at the top end, a movable slot opened on the base, a plurality of adjusting shafts fixed on the outer surface of the support column one, a plurality of adjusting plates hinged at the top with the adjusting shafts and sliding in the movable slot, a sliding block arranged in the movable slot and connected with the bottom end of the adjusting plate, and a plurality of limiting blocks for abutting against the sliding block, the base can be a rectangular steel plate with a certain thickness and weight, the warning board is prevented from shaking and being blown away, the movable slots are symmetrically arranged on the two sides of the support column two, the movable slots extend away from the support column two but do not extend out of the base, the number of the adjusting shafts and the adjusting plates corresponds, the adjusting shafts can be two, the adjusting shafts and the adjusting plates are symmetrically arranged on the two sides of the support column two, the number of the limiting blocks is multiple, the limiting blocks can be put into or taken out of the movable slot, when the height of the box body needs to be increased, the two sliding blocks are simultaneously pushed towards the support column two along the movable slot, the support column one slides upwards along the support column two, the limiting blocks are filled into the movable slot outside the sliding block when the height needed is adjusted, and the bottom of the adjusting plate is prevented from sliding away from the support column two, when the box body needs to be lowered, the limiting blocks are taken out, the adjusting plates are adjusted in the reverse direction, and the limiting blocks are put into the movable slot again when the height needed is adjusted.

[0015] Further, the pulling plate is fixed with a handle, and the handle facilitates the pushing and pulling of the pulling plate, and the handle comprises two cylinders with different diameters, one end of the cylinder with a smaller diameter is connected with the pulling plate, and the other end is connected with the cylinder with a larger diameter.

[0016] Further, the side plate is provided with a rotating buckle for locking the pulling plate, the rotating buckle is formed with an arc-shaped groove, the rotating buckle rotates around a fixed knob fixed on the side plate, the rotating buckle is rotated to be clamped into the handle to complete the limiting when the pulling plate is returned to the original position, the pulling plate is prevented from sliding out of the box body, the rotating buckle is rotated to be separated from the handle, and the pulling plate is pulled out or pushed in to change and replace the warning words.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The utility model discloses a long -distance pipeline construction warning board, including box body, warning component, changeable plate, fixed knob, rotating buckle, support component, changeable plate is installed on the box body, warning component is installed on the changeable plate, fixed knob is installed on the changeable plate, rotating buckle is installed on the changeable plate, support component is installed on the changeable plate, the cooperation between changeable plate and constant light bin is adjusted warning content's color through the installation warning component, makes warning content more eye-catching, makes the pedestrian and vehicle in fog or night can notice warning board content, avoids the generation of dangerous behavior, improves the security of device,

[0019] The utility model discloses a long -distance pipeline construction warning board, including box body, warning component, changeable plate, fixed knob, rotating buckle, support component, changeable plate is installed on the box body, warning component is installed on the changeable plate, fixed knob is installed on the changeable plate, rotating buckle is installed on the changeable plate, support component is installed on the changeable plate, the cooperation between changeable plate and constant light bin is adjusted warning content's color through the installation warning component, makes warning content more eye-catching, makes the pedestrian and vehicle in fog or night can notice warning board content, avoids the generation of dangerous behavior, improves the security of device,

[0020] The utility model discloses a long -distance pipeline construction warning board, including box body, warning component, changeable plate, fixed knob, rotating buckle, support component, changeable plate is installed on the box body, warning component is installed on the changeable plate, fixed knob is installed on the changeable plate, rotating buckle is installed on the changeable plate, support component is installed on the changeable plate, the cooperation between changeable plate and constant light bin is adjusted warning content's color through the installation warning component, makes warning content more eye-catching, makes the pedestrian and vehicle in fog or night can notice warning board content, avoids the generation of dangerous behavior, improves the security of device, BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the three -dimensional structure schematic diagram of long -distance pipeline construction warning board of the utility model;

[0022] Figure 2 It is the changeable plate schematic diagram of long -distance pipeline construction warning board of the utility model;

[0023] Figure 3 It is the constant light bin schematic diagram of long -distance pipeline construction warning board of the utility model;

[0024] Figure 4 It is the three -dimensional structure schematic diagram of support component of long -distance pipeline construction warning board of the utility model;

[0025] Figure 5 It is the local three -dimensional structure schematic diagram of fixed knob and rotating buckle of long -distance pipeline construction warning board of the utility model;

[0026] Figure 6 It is the local side view structure schematic diagram of long -distance pipeline construction warning board of the utility model;

[0027] Figure 7 It is the hinged schematic diagram of limit buckle.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, box body;

[0030] 101, top plate;102, bottom plate;103, backboard;

[0031] 2, warning assembly; 201, plate slot; 202, sliding groove; 203, pull-out plate; 204, pulley; 205, limit buckle; 206, placement plate; 207, handle; 208, fixed knob; 209, rotating buckle; 210, constant light bin; 211, light transmission plate; 212, light emitting bulb; 213, color-changing lamp plate; 214, protective plate; 215, glass plate, 216, hinged shaft; 217, torsional spring; 218, hinged block; 219, hinged seat; 220, extended arm;

[0032] 3, support assembly; 301, support column one; 302, support column two; 303, adjusting shaft; 304, adjusting plate; 305, sliding block; 306, base; 307, movable groove; 308, limit block. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0034] Please refer to Figures 1-7 The long pipeline construction warning sign provided by the present application comprises a box body 1, a warning assembly 2 arranged on the box body 1, and a support assembly 3 arranged below the box body 1 and used for adjusting the height of the box body 1. The warning assembly 2 comprises a transparent glass plate 215 arranged on the front surface of the box body 1 (the surface facing the pedestrians and vehicles), a pull-out plate 203 arranged laterally to enter and exit the box body 1, a placement plate 206 fixed on the pull-out plate 203 and used for placing warning words, and a constant light bin 210 arranged between the glass plate 215 and the pull-out plate 203 and used for illuminating the warning words.

[0035] The box body 1 may be, for example, a cuboid. The box body 1 comprises a top plate 101, a bottom plate 102 arranged parallel to the top plate 101, a back plate 103 connected between the top plate 101 and the bottom plate 102, and two side plates arranged parallel and used for connecting the back plate 103, the top plate 101 and the bottom plate 102. The surface opposite to the back plate 103 forms a front opening, and the glass plate 215 covers the front opening. The glass plate 215 may be, for example, tempered glass. One of the side plates is provided with a lateral opening for the pull-out plate 203 to push into and pull out of the box body 1.

[0036] The twitching plate 203 can be rectangular, for example, the length of the twitching plate 203 is consistent with the length of the box 1, the top and bottom of the twitching plate 203 are provided with a plurality of pulleys 204, the plurality of pulleys 204 are spaced along the length direction of the twitching plate 203, the central axis of the pulley 204 is perpendicular to the length direction of the twitching plate 203, and the twitching plate 203 is preferably made of transparent material, including but not limited to acrylic or glass transparent material.

[0037] The placement plate 206 is fixedly connected to the front of the twitching plate 203, and the length and width of the placement plate 206 are smaller than those of the twitching plate 203, for example, 5-10 cm smaller, and the placement plate 206 is preferably made of transparent material, including but not limited to acrylic or glass transparent material.

[0038] The twitching plate 203 around the placement plate 206 is provided with a hinged assembly, the hinged assembly is connected with a limiting buckle 205, the limiting buckle 205 can be a thin plate, for example, the end of the limiting buckle 205 extends and abuts against the placement plate 206, the top of the limiting buckle 205 is provided with an opening, the limiting buckles 205 on both sides of the opening form a hinged block 218, a through hole is opened in the hinged block 218, the hinged assembly includes two hinged seats 219 fixedly arranged on the twitching plate 203 and spaced apart, a hinged shaft 216 arranged on the hinged seat 219, and a torsional spring 217 sleeved on the hinged shaft 216, the torsional spring 217 is arranged between the two hinged seats 219, the torsional spring 217 can be a double-arm torsional spring, for example, one of the extending arms 220 of the torsional spring 217 abuts against the placement plate 206, and the other extending arm 220 abuts against the twitching plate 203, the both ends of the hinged shaft 216 pass through the hinged block 218 through the through hole, thereby achieving the connection between the limiting buckle 205 and the hinged seat 219, and in specific use, under the torsional force of the torsional spring 217, the limiting buckle 205 abuts against the placement plate 206, the limiting buckle 205 is rotated around the hinged shaft 216 to overcome the torsional force of the torsional spring 217, so that the limiting buckle 205 is in an open state, the warning words are placed on the placement plate 206, the limiting buckle 205 is loosened, and the torsional force of the torsional spring 217 makes the limiting buckle 205 abut against the warning words, thereby fixing the warning words on the placement plate 206, and the warning words are made of hardboard, for example.

[0039] The top plate 101 and the bottom plate 102 are both fixedly provided with a plate groove 201 corresponding in position, the plate groove 201 is provided with a sliding groove 202 limiting the sliding direction of the pulley 204, and the pulley 204 slides along the sliding groove 202 to push or pull the twitching plate 203 into or out of the box 1.

[0040] The twitching plate 203 and the back plate 103 are provided with a color-changing lamp plate 213, the back of the color-changing lamp plate 213 is provided with a protective plate 214, and the side opposite to the color-changing lamp plate 213 of the protective plate 214 is preferably connected with the back plate 103 of the box 1, and the protective plate 214 is used for protecting the color-changing lamp plate 213 from the influence of harsh environment.

[0041] The constant light bin 210 comprises a plurality of light bulbs 212 and light-transmitting plates 211 connected between the two side plates of the box body 1, and the light-transmitting plates 211 are two and arranged one above the other, the upper light-transmitting plate 211 forms a first space for accommodating the light bulbs 212 together with the glass plate 215, the top plate 101 and the placing plate 206, the lower light-transmitting plate 211 forms a second space for accommodating the light bulbs 212 together with the glass plate 215, the bottom plate 102 and the placing plate 206, the light bulbs 212 emit light to illuminate the warning words, and through the cooperation between the color-changing lamp plate 213 and the constant light bin 210, the color of the warning content is adjusted, the warning content is more eye-catching, pedestrians and vehicles can notice the content of the warning sign in foggy weather or at night, and dangerous behaviors can be avoided.

[0042] The support assembly 3 comprises a base 306, a support column two 302 fixed on the base 306, a support column one 301 sleeved on the support column two 302 and sliding along the support column two 302 and connected with the box body 1 at the top end, a movable groove 307 opened on the base 306, a plurality of adjusting shafts 303 fixed on the outer surface of the support column one 301, a plurality of adjusting plates 304 hinged at the top with the adjusting shafts 303 and sliding in the movable groove 307 at the bottom, a sliding block 305 arranged in the movable groove 307 and connected with the bottom end of the adjusting plate 304, and a plurality of limiting blocks 308 for abutting against the sliding block 305. The base 306 can be a rectangular steel plate with a certain thickness and weight, for example, to prevent the warning sign from shaking and being blown away. The movable grooves 307 are symmetrically arranged on the two sides of the support column two 302 and extend away from the support column two 302 but do not extend out of the base 306. The number of the adjusting shafts 303 corresponds to the number of the adjusting plates 304. The adjusting shafts 303 can be two, for example. The adjusting shafts 303 and the adjusting plates 304 are symmetrically arranged on the two sides of the support column two 302. The number of the limiting blocks 308 is a plurality. The limiting blocks 308 can be put into or taken out of the movable groove 307. When it is necessary to increase the height of the box body 1, the two sliding blocks 305 are simultaneously pushed towards the support column two 302 along the movable groove 307, the support column one 301 slides upwards along the support column two 302, and when the height is adjusted to the required height, the limiting blocks 308 are filled into the movable groove 307 outside the sliding block 305 to prevent the bottom of the adjusting plate 304 from sliding away from the support column two 302. When it is necessary to lower the box body 1, the limiting blocks 308 are taken out, the adjusting plate 304 is adjusted in the reverse direction, and when the height is adjusted to the required height, the limiting blocks 308 are again put into the movable groove 307.

[0043] The pulling plate 203 is fixed with a handle 207 for conveniently pushing and pulling the pulling plate 203. The handle 207 comprises two cylindrical bodies with different diameters, one end of the cylindrical body with a smaller diameter is connected with the pulling plate 203, and the other end is connected with the cylindrical body with a larger diameter.

[0044] The side plate is provided with a rotating buckle 209 for locking the sliding plate 203, the rotating buckle 209 is formed with an arc-shaped groove, and the rotating buckle 209 rotates around a fixed knob 208 fixed on the side plate; when the sliding plate 203 is returned to the original position, the rotating buckle 209 is rotated to be clamped into the handle 207 to complete the limiting, preventing the sliding plate 203 from sliding out of the box body 1; the rotating buckle 209 is rotated to be separated from the handle 207, and the sliding plate 203 is pulled out or pushed in, so that the warning words are changed and replaced.

[0045] The long-distance pipeline construction warning board is used, and the working process is as follows:

[0046] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , when the warning board of the utility model is used, the warning board is placed at the long-distance pipeline construction site, the sliding plate 203 in the plate groove 201 is pulled out by the handle 207, the content to be warned is placed on the placing plate 206 on one side of the sliding plate 203, different warning contents can be replaced on the placing plate 206, the sliding plate 203 and the plate groove 201 are assisted to slide through the pulley 204 and the sliding groove 202, when the sliding plate 203 is returned to the original position, the rotating buckle 209 fixed by the fixed knob 208 can clamp the handle 207 to complete the limiting, the color-changing lamp plate 213 is used to control the background color of the warning content, the light-emitting bulb 212 in the light-transmitting plate 211 is used to illuminate the warning content, the glass plate 215 in front of the box body 1 is used to protect the warning assembly 2, the protection plate 214 is used to protect the color-changing lamp plate 213, the support assembly 3 at the bottom of the box body 1 can adjust the height of the warning board by adjusting the support column one 301 and the support column two 302, when adjusting, the limiting block 308 in the movable groove 307 can be used to fix the sliding block 305, so as to fix the support column one 301 and the support column two 302, so as to fix the height of the display board.

[0047] The basic principle, main features and advantages of the utility model are shown and described above. The technical personnel in the industry should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A long distance pipeline construction warning sign, characterized in that, It includes a box (1), a warning assembly (2) attached to the box (1), a support assembly (3) arranged below the box (1) and used to adjust the height of the box (1), the warning assembly (2) includes a transparent glass plate (215) arranged on the front of the box (1), a twitching plate (203) for entering and exiting the box (1) laterally, a placement plate (206) fixed to the twitching plate (203) and used to place warning words, a constant light bin (210) arranged between the glass plate (215) and the twitching plate (203) and used to illuminate the warning words.

2. The long-pipeline construction warning sign according to claim 1, characterized in that, The box (1) includes a top plate (101), a bottom plate (102) arranged parallel to the top plate (101), a back plate (103) connected between the top plate (101) and the bottom plate (102), and two side plates used to connect the back plate (103), the top plate (101) and the bottom plate (102) and arranged in parallel, the side opposite to the back plate (103) forms a front opening, and the glass plate (215) covers the front opening. One of the side plates is provided with a lateral opening for the twitching plate (203) to push into and pull out of the box (1).

3. The long-pipeline construction warning sign according to claim 2, characterized in that, The top and bottom of the twitching plate (203) are provided with a plurality of pulleys (204), and the plurality of pulleys (204) are arranged in the length direction of the twitching plate (203) and are spaced apart. The placement plate (206) is fixedly connected to the front of the twitching plate (203).

4. The long-pipeline construction warning sign according to claim 1, characterized in that, The twitching plate (203) is provided with a hinge assembly, the hinge assembly is connected with a limiting buckle (205), the limiting buckle (205) extends to the placement plate (206) and abuts against the placement plate (206), the top of the limiting buckle (205) is provided with an opening, the limiting buckles (205) on both sides of the opening form a hinge block (218), a through hole is formed in the hinge block (218), the hinge assembly includes two hinge seats (219) fixedly arranged on the twitching plate (203) and spaced apart, a hinge shaft (216) arranged on the hinge seat (219), and a torsional spring (217) sleeved on the hinge shaft (216). The torsional spring (217) is arranged between the two hinge seats (219), the torsional spring (217) is a double-arm torsional spring, one of the extending arms (220) of the torsional spring (217) abuts against the placement plate (206), and the other extending arm (220) abuts against the twitching plate (203). The two ends of the hinge shaft (216) penetrate through the hinge block (218) through the through hole, so as to connect the limiting buckle (205) and the hinge seat (219).

5. The long-pipeline construction warning sign according to claim 3, characterized in that, The top plate (101) and the bottom plate (102) are fixedly provided with plate grooves (201) corresponding in position, the plate grooves (201) are provided with sliding grooves (202) for limiting the sliding direction of the pulleys (204), and the pulleys (204) slide along the sliding grooves (202) to push or pull the twitching plate (203) into or out of the box (1).

6. The long-pipeline construction warning sign according to claim 1, characterized in that, A color-changing lamp plate (213) is arranged between the twitching plate (203) and the back plate (103), and a protection plate (214) is arranged on the back of the color-changing lamp plate (213).

7. The long-pipeline construction warning sign according to claim 2, characterized in that, The constant light box (210) comprises a light bulb (212) and two light-transmitting plates (211) connected between the two side plates of the box (1). The two light-transmitting plates (211) are arranged one above the other. The upper light-transmitting plate (211) forms a first space for accommodating the light bulb (212) together with the glass plate (215), the top plate (101) and the placing plate (206). The lower light-transmitting plate (211) forms a second space for accommodating the light bulb (212) together with the glass plate (215), the bottom plate (102) and the placing plate (206).

8. The long-pipeline construction warning sign according to claim 1, characterized in that, The support assembly (3) comprises a base (306), a support column two (302) fixed on the base (306), a support column one (301) sleeved on the support column two (302) and sliding along the support column two (302) and connected with the box (1) at the top end, a movable slot (307) opened on the base (306), a plurality of adjusting shafts (303) fixed on the outer surface of the support column one (301), a plurality of adjusting plates (304) hinged at the top with the adjusting shafts (303) and sliding in the movable slot (307) at the bottom, a sliding block (305) arranged in the movable slot (307) and connected with the bottom end of the adjusting plate (304), a plurality of limiting blocks (308) for abutting against the sliding block (305), the movable slot (307) being symmetrically arranged on both sides of the support column two (302), the movable slot (307) extending away from the support column two (302) but not extending out of the base (306), the number of the adjusting shafts (303) and the adjusting plates (304) corresponding to each other, and the adjusting shafts (303) and the adjusting plates (304) being symmetrically arranged on both sides of the support column two (302).

9. The long-pipeline construction warning sign according to claim 1, characterized in that, The pulling plate (203) is fixed with a handle (207).

10. The long-pipeline construction warning sign according to claim 9, characterized in that, The side plate is provided with a rotating buckle (209) for locking the pulling plate (203), the rotating buckle (209) being formed with an arc-shaped groove, and the rotating buckle (209) rotating around a fixed knob (208) fixed on the side plate.

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