Electronic detonator carrying vehicle

Abstract

The invention relates to the technical field of carrying vehicles and new energy vehicles, in particular to an electronic detonator carrying vehicle to solve the technical problem that detonators carried by existing new energy vehicles are prone to explosion. Comprising a vehicle body, a main storage tank located in the vehicle body and a plurality of sets of storage cylinders arranged in the main storage tank and used for independently storing electronic detonators, the multiple storage cylinders are folded in a unified mode through an external connecting frame, the storage cylinders are rotationally arranged in the external connecting frame, and the gravity centers of the storage cylinders are located below the center. According to the electronic detonator carrying vehicle, a plurality of storage barrels are rotatably placed in an external connecting frame, and the external connecting frame is rotatably arranged in a main storage tank through a buffer moving seat, so that when the main storage tank is carried in a rolling manner, the internal external connecting frame and the storage barrels do not roll together and only deflect in a small range, and the gravity centers of the storage barrels are close to the lower part; furthermore, even if the electronic detonator is collided or braked suddenly in the movement process, the storage barrel only deflects by a small angle, and the impact can be unloaded in a self-deflection manner, so that the safety of the electronic detonator stored in the storage barrel is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of new energy vehicles for carriers, in particular to an electronic detonator carrier vehicle. Background Art

[0002] Electronic detonators are filled with a lot of explosives. Although they are ignited electronically, they may explode if they are not properly protected and are hit. Especially when new energy vehicles carry explosives such as detonators, once an explosion occurs, the consequences are extremely serious. Therefore, it is necessary to develop a vehicle that can effectively protect detonators. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides an electronic detonator carrier vehicle, which solves the problem that electronic detonators are currently only protected by some buffer materials during transportation, but if the container is subjected to severe collision during transportation, causing the electronic detonators to rub, slide or vibrate and collide, there is also a risk of explosion and the protection effect is limited.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electronic detonator transport vehicle, comprising a vehicle body, a main storage tank located in the vehicle body, and a plurality of storage tubes arranged inside the vehicle body for storing electronic detonators separately, wherein the plurality of storage tubes are gathered together by an external connecting frame, the storage tubes are rotatably arranged in the external connecting frame, and the center of gravity of the storage tubes is located below the center, the external connecting frame is rotatably arranged in the main storage tank through an outer buffer movable seat, and the main storage tank is vacuumed for storage after storing electronic detonators;

[0005] The storage cylinder comprises a cylinder and a cylinder cover which are rotatably connected at both ends by hinges, and after the cylinder cover is closed, it is fastened and sealed to the cylinder by fastening bolts, a plurality of supporting rubber rollers for placing electronic detonators are horizontally rotatably connected at the lower middle part of the inner cavity of the storage cylinder, a stabilizing structure is arranged on the top of the inner cavity of the storage cylinder, and when the cylinder cover is closed, the stabilizing structure is pushed to press down the electronic detonator, an air nozzle with a threaded sealing cover is connected to the center of the cylinder cover, and the inside of the cylinder is inflated and exhausted through the air nozzles on both sides to replace the internal air with an inert gas, an annular air bag surrounding the air nozzle is arranged on the inner side of the cylinder cover, and an air suction nozzle with a threaded sealing cover and connected to the annular air bag is arranged on the outer side of the cylinder cover, so that when the total storage tank is evacuated, the air in the annular air bag is extracted to indirectly reduce the air pressure in the storage cylinder.

[0006] Preferably, the inner cavity of the cylinder is divided into two front and rear cavities by a buffer hollow partition fixed in the middle, a counterweight block is inserted at the bottom of the inner cavity of the cylinder, and mounting strips with screwed fastening bolts are provided on both sides of the inner cavity of the cylinder, and the mounting strips are covered with rubber strips.

[0007] Preferably, the stabilizing structure includes hanging rods fixedly connected to both sides of the top of the cylindrical inner cavity, and a hanging plate is slidably sleeved on the hanging rods on both sides, the bottom of the hanging plate is elastically connected to a pressure plate through a first spring, and the bottom of the pressure plate is rotatably connected to a plurality of pressure rollers, and the top of the hanging plate is fixedly connected to a plurality of lower trapezoidal blocks.

[0008] Preferably, a sliding seat is provided above the hanging plate, and the top of the sliding seat slides against the top of the inner wall of the cylinder through a ball bearing, and the bottom of the sliding seat is provided with an upper trapezoidal edge corresponding to the lower trapezoidal block. The upper trapezoidal edge presses the hanging plate downward when squeezed by the inclined surface of the lower trapezoidal block. One end of the sliding seat is fixedly connected to a second spring that presses against a buffer hollow partition, and the other end of the sliding seat is fixedly connected to a push rod with a rubber sleeve wrapped at the end, and the push rod is pushed inward when the cylinder cover is closed.

[0009] Preferably, the buffer movable seat includes a support seat whose outer side rolls with the inner wall of the main storage tank through balls, a metal column is fixedly connected to the inner side of the support seat, and the outside of the metal column is covered with a ceramic sleeve that passes through the external connecting frame, and a third spring is provided outside the ceramic sleeve and between the support seat and the external connecting frame.

[0010] Preferably, both ends of the main storage tank are provided with sealing covers, and valves are provided at the outer centers of the sealing covers on both sides, and the valves on both sides are used to evacuate and discharge inert gas respectively, and the evacuation and discharge of inert gas are performed at least twice in sequence.

[0011] Preferably, the main storage tank is a cylindrical structure with a rubber tire on the outside, and hanging rings are provided on both sides of the outer arc surface of the main storage tank. When the main storage tank is transported, the hanging rings on both sides are connected to the binding structure on the vehicle body.

[0012] Preferably, the hanging ring includes a magnetic plate fixed on the surface of the main storage tank, and a ring is rotatably connected to the magnetic plate, and the total thickness of the ring when adsorbed on the surface of the magnetic plate is less than two-thirds of the thickness of the tire.

[0013] Preferably, the binding structure comprises a fixing seat fixed on the vehicle body and a spring telescopic tube rotatably connected thereto, one end of the spring telescopic tube is bound with a sling, and the other end of the sling is bound to a ring.

[0014] Beneficial Effects

[0015] The present invention provides an electronic detonator carrier vehicle. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The electronic detonator transport vehicle rotates and places a plurality of storage tubes in an external connecting frame, and the external connecting frame is rotated and arranged in a main storage tank by using a buffer moving seat. When the main storage tank is rolled and transported, the external connecting frame and the storage tubes inside will not roll together, but will only deflect in a small range. The center of gravity of the storage tube is low, so even if it is hit or braked suddenly during the movement, the storage tube will only deflect in a small angle, and can use its own deflection to relieve the impact, thereby effectively improving the safety of the electronic detonators stored in the storage tubes. In addition, by evacuating the air pressure inside the main storage tank and replacing the original air with a small amount of inert gas, not only the probability of the electronic detonator exploding can be reduced, but also the power of the explosion can be reduced by using the low-pressure environment.

[0017] (2) The electronic detonator transport vehicle has a stable structure that naturally droops under normal circumstances. After the electronic detonator is placed in, it can be pushed up. When the cylinder cover is closed, the sliding seat can be pushed inward by squeezing the push rod, thereby automatically pressing down the hanging plate, and then the first spring, the pressure plate and the pressure roller elastically press down the electronic detonator, which can stabilize and avoid the jumping of the detonator during transportation, thereby improving the stability of transportation and eliminating the operation of manual adjustment and tightening, making the operation simpler and more convenient.

[0018] (3) The electronic detonator carrier vehicle is supported by arranging multiple groups of buffer movable seats outside the external connecting frame. On the one hand, the external connecting frame can be kept from contacting the main storage tank, and elastic buffering can be performed at the same time. The rotation of the external connecting frame can also be maintained, so that when the main storage tank is rolled and transported, the internal external connecting frame and the storage tube will not roll together, and the electronic detonator is relatively still, thereby improving safety. A ceramic sleeve is arranged outside the metal column used for guidance for sliding, which can also reduce frictional electricity between metals.

[0019] (4) The electronic detonator carrier vehicle uses an elastic binding structure on both sides to hang the main storage tank during transportation, so that the main storage tank can maintain a certain range of rolling ability. The rolling and elastic force are used to tighten the main storage tank, which can effectively buffer the main storage tank and avoid instantaneous hard collisions, thereby achieving better protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a side view of the external structure of the present invention;

[0021] Figure 2 It is a front view of the internal structure of the present invention;

[0022] Figure 3 A schematic diagram of the storage cartridge of the present invention in an open state;

[0023] Figure 4 It is a schematic diagram of the storage cylinder of the present invention in a closed state;

[0024] Figure 5 is a side sectional view of the cylinder of the present invention;

[0025] Figure 6 It is a side view of a local structure of the stabilizing structure of the present invention;

[0026] Figure 7 It is a cross-sectional view of the buffer movable seat of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the hanging ring of the present invention.

[0028] In the figure: 1-main storage tank, 2-storage cylinder, 21-cylinder, 22-cylinder cover, 23-fastening bolt, 24-support rubber roller, 25-stable structure, 25-stable structure, 251-hanging rod, 252-hanging plate, 253-first spring, 254-pressing plate, 255-pressing roller, 256-lower trapezoidal block, 257-sliding seat, 258-upper trapezoidal edge, 259-second spring, 2510-rubber sleeve, 2511-push rod, 26- Air nozzle, 27-annular airbag, 211-air suction nozzle, 28-buffer hollow partition, 29-counterweight, 210-rubber strip, 3-external connecting frame, 4-buffer moving seat, 41-support seat, 42-metal column, 43-ceramic sleeve, 44-third spring, 5-sealing cover, 6-valve, 7-rubber tire, 8-hanging ring, 81-magnetic suction plate, 82-ring, 9-binding structure, 91-fixed seat, 92-spring telescopic tube, 93-sling. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention provides four technical solutions:

[0031] Figure 1-5 The first embodiment is shown: an electronic detonator transport vehicle, comprising a main storage tank 1 and a plurality of storage tubes 2 for storing electronic detonators separately arranged therein, wherein the plurality of storage tubes 2 are gathered together by an external connecting frame 3, the storage tubes 2 are rotatably arranged in the external connecting frame 3, and the center of gravity of the storage tubes 2 is located below the center, the external connecting frame 3 is rotatably arranged in the main storage tank 1 by an external buffer movable seat 4, and the electronic detonators are stored in the main storage tank 1 and then evacuated for storage;

[0032] The storage cylinder 2 includes a cylinder 21 and a cylinder cover 22 whose two ends are rotatably connected by hinges, and the cylinder cover 22 is fastened and sealed to the cylinder 21 by fastening bolts 23 after being closed. A plurality of supporting rubber rollers 24 for placing electronic detonators are horizontally rotatably connected at the middle and lower part of the inner cavity of the storage cylinder 2. A stabilizing structure 25 is provided on the top of the inner cavity of the storage cylinder 2. When the cylinder cover 22 is closed, the stabilizing structure 25 is pushed to press down the electronic detonator. The center of the cylinder cover 22 is connected to an air nozzle 26 with a threaded sealing cover. The inside of the cylinder 21 is inflated and exhausted through the air nozzles 26 on both sides to replace the internal air with an inert gas. An annular air bag 27 surrounding the air nozzle 26 is provided on the inner side of the cylinder cover 22, and an air suction nozzle 211 with a threaded sealing cover and connected to the annular air bag 27 is provided on the outer side of the cylinder cover 22, so that when the total storage tank 1 is evacuated, the air in the annular air bag 27 is extracted to indirectly reduce the air pressure in the storage cylinder 2.

[0033] The inner cavity of the cylinder 21 is divided into two front and rear cavities by a buffer hollow partition 28 fixed in the middle. A counterweight block 29 is inserted at the bottom of the inner cavity of the cylinder 21. Mounting strips screwed with fastening bolts 23 are provided on both sides of the inner cavity of the cylinder 21, and the mounting strips are covered with rubber strips 210.

[0034] Both ends of the main storage tank 1 are provided with sealing covers 5, and valves 6 are provided at the outer centers of the sealing covers 5 on both sides. The valves 6 on both sides are used to evacuate and discharge inert gas respectively, and the evacuation and discharge of inert gas are performed at least twice in sequence, first evacuating and then discharging inert gas, and then repeating the operation again, which can not only replace the original air, but also reduce the consumption of inert gas.

[0035] By rotating and placing a plurality of storage tubes 2 in an external connecting frame 3, and rotating and setting the external connecting frame 3 in the main storage tank 1 by means of a buffer moving seat 4, when the main storage tank 1 is rolled and transported, the internal external connecting frame 3 and the storage tube 2 will not roll together, but will only deflect in a small range, and the center of gravity of the storage tube 2 is low, so that even if it is hit or braked suddenly during movement, the storage tube 2 will only deflect in a small angle, and can use its own deflection to relieve the impact, thereby effectively improving the safety of the electronic detonator stored in the storage tube 2. The internal air pressure of the main storage tank 1 is reduced by vacuuming, and a small amount of inert gas is used to replace the original air, which can not only reduce the probability of the electronic detonator exploding, but also reduce the power of the explosion by using a low-pressure environment.

[0036] Figure 2 and 6The second embodiment is shown, which is mainly different from the first embodiment in that the stabilizing structure 25 includes hanging rods 251 fixedly connected to both sides of the top of the inner cavity of the cylinder 21, and hanging plates 252 are slidably sleeved on the hanging rods 251 on both sides, the bottom of the hanging plate 252 is elastically connected to a pressing plate 254 through a first spring 253, and the bottom of the pressing plate 254 is rotatably connected to a plurality of pressing rollers 255, the top of the hanging plate 252 is fixedly connected to a plurality of lower trapezoidal blocks 256, and a top through hole is arranged above the hanging plate 252. A sliding seat 257 slides on the top of the inner wall of the ball-fitting cylinder 21, and an upper trapezoidal edge 258 corresponding to the lower trapezoidal block 256 is provided at the bottom of the sliding seat 257. When the upper trapezoidal edge 258 and the lower trapezoidal block 256 are squeezed by the inclined surface, the hanging plate 252 is pressed down. One end of the sliding seat 257 is fixedly connected to a second spring 259 that presses against the buffer hollow partition 28, and the other end of the sliding seat 257 is fixedly connected to a push rod 2511 with a rubber sleeve 2510 at the end. When the cylinder cover 22 is closed, the push rod 2511 is pushed inward.

[0037] The stabilizing structure 25 droops naturally under normal circumstances. It can be pushed up after the electronic detonator is placed in. When the cylinder cover 22 is closed, the sliding seat 257 can be pushed inward by squeezing the push rod 2511, thereby automatically pressing down the hanging plate 252, and then the first spring 253, the pressure plate 254 and the pressure roller 255 elastically press down the electronic detonator, which can stabilize and avoid the jumping of the detonator during transportation, thereby improving the stability of transportation and eliminating the operation of manual adjustment and tightening, making the operation simpler and more convenient.

[0038] Figure 2 and 7 A third embodiment is shown, and its main difference from the second embodiment is that the buffer movable seat 4 includes a support seat 41 whose outer side rolls with the inner wall of the main storage tank 1 through balls, a metal column 42 is fixedly connected to the inner side of the support seat 41, and the outside of the metal column 42 is covered with a ceramic sleeve 43 that passes through the external connecting frame 3, and a third spring 44 is provided outside the ceramic sleeve 43 and between the support seat 41 and the external connecting frame 3.

[0039] By arranging multiple groups of buffer movable seats 4 outside the external connecting frame 3 for support, on the one hand, the external connecting frame 3 can be kept from contacting the main storage tank 1, and elastic buffering can be performed at the same time, and the rotation of the external connecting frame 3 can be maintained, so that when the main storage tank 1 is rolled and transported, the internal external connecting frame 3 and the storage tube 2 will not roll together, and the electronic detonator is relatively still, thereby improving safety. A ceramic sleeve 43 is arranged outside the metal column 42 for guidance for sliding, which can also reduce frictional electricity generated between metals.

[0040] Figure 1 and 8A fourth embodiment is shown, which mainly differs from the third embodiment in that the main storage tank 1 is a cylindrical structure and is covered with a rubber tire 7 on the outside. The rubber tire 7 facilitates the rolling of the main storage tank 1 as a whole, and further facilitates rolling transportation. Hanging rings 8 are provided on both sides of the outer arc surface of the main storage tank 1. When the main storage tank 1 is transported, the hanging rings 8 on both sides are connected to the binding structure 9 on the vehicle body.

[0041] The hanging ring 8 includes a magnetic plate 81 fixed on the surface of the main storage tank 1, and a ring 82 is rotatably connected to the magnetic plate 81. When the ring 82 is adsorbed on the surface of the magnetic plate 81, the total thickness is less than two-thirds of the thickness of the rubber tire 7.

[0042] The binding structure 9 includes a fixing seat 91 fixed on the vehicle body and a spring telescopic tube 92 rotatably connected thereto. A sling 93 is bound to one end of the spring telescopic tube 92 , and the other end of the sling 93 is bound to the ring 82 .

[0043] By hanging both sides of the main storage tank 1 with elastic binding structures 9 on both sides during transportation, the main storage tank 1 can maintain a certain range of rolling ability, and the rolling combined with elastic tension can effectively buffer and avoid instantaneous hard collision, thereby achieving better protection effect.

[0044] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0045] When in use, first open the tube cover 22, put the electronic detonator into the storage tube 2 and support the rubber roller 24, then cover the tube cover 22 and tighten it with the fastening bolts 23 to seal it. At this time, the tube cover 22 can push the sliding seat 257 inward by squeezing the push rod 2511, and then automatically press down the hanging plate 252, so that the first spring 253, the pressure plate 254 and the pressure roller 255 elastically press down the electronic detonator; then unscrew the threaded sealing covers of the air nozzles 26 at both ends, fill in inert gas from one side of the air nozzle 26 to replace the air in the storage tube 2, then cover the threaded sealing cover to close the air nozzle 26, and then unscrew the threaded sealing cover of the air suction nozzle 211.

[0046] After all the detonators are put in place, put the sealing cover 5 on, use the valve 6 on one side to connect the vacuum device to extract the air inside the main storage tank 1 to reduce the air pressure, and after the air is evacuated to a certain pressure, close the valve 6 on this side and open the valve 6 on the other side to discharge a small amount of inert gas into the main storage tank 1 from the valve 6 on the other side, and then switch the two valves 6 to repeat the vacuuming and adding inert gas operations. When evacuating, the negative pressure can be used to extract the air in the annular airbag 27 from the suction nozzle 211, thereby reducing the air pressure in the storage tube 2, and finally close the two valves 6.

[0047] After the main storage tank 1 is carried onto the vehicle, the sling 93 of the binding structure 9 on the vehicle body is bound to the hanging ring 8 and the transportation can begin.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic detonator transport vehicle, comprising a vehicle body, a main storage tank located in the vehicle body and a plurality of storage cylinders arranged inside the vehicle body for storing electronic detonators separately, characterized in that: A plurality of storage tubes are gathered together by an external connection frame, the storage tubes are rotatably arranged in the external connection frame, and the center of gravity of the storage tubes is located below the center, the external connection frame is rotatably arranged in the main storage tank through the external buffer movable seat, and the main storage tank is stored in a vacuum after storing electronic detonators; The storage cylinder comprises a cylinder and a cylinder cover which are rotatably connected at both ends by hinges, and after the cylinder cover is closed, it is fastened and sealed to the cylinder by fastening bolts, a plurality of supporting rubber rollers for placing electronic detonators are horizontally rotatably connected at the lower middle part of the inner cavity of the storage cylinder, a stabilizing structure is arranged on the top of the inner cavity of the storage cylinder, and when the cylinder cover is closed, the stabilizing structure is pushed to press down the electronic detonator, an air nozzle with a threaded sealing cover is connected to the center of the cylinder cover, and the inside of the cylinder is inflated and exhausted through the air nozzles on both sides to replace the internal air with an inert gas, an annular air bag surrounding the air nozzle is arranged on the inner side of the cylinder cover, and an air suction nozzle with a threaded sealing cover and connected to the annular air bag is arranged on the outer side of the cylinder cover, so that when the total storage tank is evacuated, the air in the annular air bag is extracted to indirectly reduce the air pressure in the storage cylinder.

2. The electronic detonator carrier vehicle according to claim 1, characterized in that: The inner cavity of the cylinder is divided into two front and rear cavities by a buffer hollow partition fixed in the middle. A counterweight block is inserted at the bottom of the inner cavity of the cylinder. Mounting strips screwed with fastening bolts are arranged on both sides of the inner cavity of the cylinder, and the mounting strips are covered with rubber strips.

3. The electronic detonator carrier vehicle according to claim 1, characterized in that: The stabilizing structure includes hanging rods fixedly connected to both sides of the top of the inner cavity of the cylinder, and a hanging plate is slidably sleeved on the hanging rods on both sides. The bottom of the hanging plate is elastically connected to a pressure plate through a first spring, and the bottom of the pressure plate is rotatably connected to a plurality of pressure rollers, and the top of the hanging plate is fixedly connected to a plurality of lower trapezoidal blocks.

4. The electronic detonator carrier vehicle according to claim 3, characterized in that: A sliding seat is provided above the hanging plate, and the top of the sliding seat slides against the top of the inner wall of the cylinder through a ball bearing, and the bottom of the sliding seat is provided with an upper trapezoidal edge corresponding to the lower trapezoidal block. When the upper trapezoidal edge is squeezed with the inclined surface of the lower trapezoidal block, the hanging plate is pressed down. One end of the sliding seat is fixedly connected to a second spring that presses against a buffer hollow partition, and the other end of the sliding seat is fixedly connected to a push rod with a rubber sleeve on the end, and the push rod is pushed inward when the cylinder cover is closed.

5. The electronic detonator carrying vehicle according to claim 1, characterized in that: The buffer movable seat includes a support seat whose outer side rolls with the inner wall of the main storage tank through balls, a metal column is fixedly connected to the inner side of the support seat, and the outside of the metal column is covered with a ceramic sleeve that passes through the external connecting frame, and a third spring is provided outside the ceramic sleeve and between the support seat and the external connecting frame.

6. The electronic detonator carrying vehicle according to claim 1, characterized in that: Both ends of the main storage tank are provided with sealing covers, and valves are provided at the outer centers of the sealing covers on both sides. The valves on both sides are used to evacuate and discharge inert gas respectively, and the evacuation and discharge of inert gas are performed at least twice in sequence.

7. The electronic detonator carrying vehicle according to claim 1, characterized in that: The main storage tank is a cylindrical structure with a rubber tire on the outside. Hanging rings are provided on both sides of the outer arc surface of the main storage tank. When the main storage tank is transported, the hanging rings on both sides are connected to the binding structure on the vehicle body.

8. The electronic detonator carrying vehicle according to claim 7, characterized in that: The hanging ring includes a magnetic plate fixed on the surface of the main storage tank, and a sleeve ring is rotatably connected to the magnetic plate. When the sleeve ring is adsorbed on the surface of the magnetic plate, the total thickness is less than two-thirds of the thickness of the rubber tire.

9. The electronic detonator carrying vehicle according to claim 8, characterized in that: The binding structure comprises a fixing seat fixed on the vehicle body and a spring telescopic tube rotatably connected thereto, one end of the spring telescopic tube is bound with a sling, and the other end of the sling is bound to a collar.

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