Safety device for upper line inspection operation of iron open wagon

Abstract

The present application relates to the technical field of safety device for inspection operation on iron open wagon, and discloses a safety device for inspection operation on iron open wagon, which comprises two vertically arranged supporting rods, and a taut cable is arranged between the two supporting rods, wherein the supporting rod comprises a supporting rod body, a hanger is arranged at an upper position of the middle part of the supporting rod body, the hanger is provided with a downward opening, the hanger can be hung on the upper edge of the carriage through the opening, a lower buckle seat capable of being clamped on the external rib of the carriage is arranged at the bottom of the supporting rod body, a locking member for locking the lower buckle seat on the external rib of the carriage is arranged on the lower buckle seat, and a frame body for installing the cable is arranged at the upper part of the supporting rod body. The safety device for inspection operation on iron open wagon solves the problem that it is difficult to form convenient safety protection when the operator climbs onto the carriage for inspection operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety device for on-line inspection operation of iron open wagon, in particular to a safety device for on-line inspection operation of iron open wagon. BACKGROUND

[0002] When loading and unloading goods, the on-site operator generally needs to go up to the wagon to observe the goods stacking situation or to inspect the number of goods in the wagon, and to carry out loading and unloading operation on the wagon. For safety production, the operator needs to wear a safety belt when going up to the wagon, but there is no part on the wagon to hook the safety buckle, which makes the safety operation of the operator not guaranteed. SUMMARY

[0003] The present application is designed to solve the problem of inconvenient safety protection when the operator goes up to the wagon for inspection operation.

[0004] To achieve the above-mentioned purpose, the safety device for on-line inspection operation of iron open wagon comprises two vertically arranged support rods, a taut cable is arranged between the two support rods, the support rod comprises a support rod body, a hanger is arranged at an upper position of the middle part of the support rod body, the hanger is provided with a downward opening, the hanger can be hung on the upper edge of the wagon through the opening, a lower buckle seat capable of being clamped on the external rib of the wagon is arranged at the bottom of the support rod body, a locking member for locking the lower buckle seat on the external rib of the wagon is arranged on the lower buckle seat, and a frame body for installing the cable is arranged at the upper part of the support rod body.

[0005] Preferably, one end of the cable is fixedly installed on the frame body of one of the support rods, and the other end is installed on the frame body of the other support rod through a slow descent mechanism.

[0006] Preferably, the slow descent mechanism comprises a housing, a winding drum rotatably installed in the housing, and an internal tooth ratchet wheel arranged around the outer periphery of the winding drum, a winding spring is arranged between the winding drum and the housing, the internal tooth ratchet wheel is fixedly installed on the housing, a plurality of pawls are hingedly connected to the end face of the winding drum, the end of the pawl away from the axis of the winding drum is fixedly connected with a pawl that is matched with the internal tooth ratchet wheel, the plurality of pawls are distributed in an equidistant circumferential array around the axis of the winding drum, a reset spring having the other end connected with the pawl is fixedly connected to the winding drum, when the winding drum rotates in the unwinding direction, the pawl faces the ratchet groove of the internal tooth ratchet wheel, the cable is wound on the winding drum, the end of the pawl away from the axis of the winding drum is provided with a counterweight, and when the winding drum rotates rapidly at the acceleration of gravity, the centrifugal force of the counterweight is sufficient to overcome the elastic force of the stretched reset spring.

[0007] Preferably, the end surface of the winding drum is further provided with a stopper for preventing the ratchet lever from being excessively turned over.

[0008] Preferably, the sliding surface of the end surface of the winding drum is provided with an auxiliary block corresponding to the ratchet lever, the sliding path of the auxiliary block intersects with the track of the ratchet lever in the initial state, and the auxiliary block and the winding drum are provided with the reset spring.

[0009] Preferably, a control cover is rotatably arranged on the end surface of the winding drum, a limiting block for limiting the turning over of the ratchet lever and the sliding of the auxiliary block is fixed to the side of the control cover close to the winding drum, a convex column is arranged in the middle of the ratchet lever, and the limiting block is provided with an arc strip; when the control cover is turned to the position where the limiting block is located on the track of the auxiliary block, the inner arc side of the arc strip of the limiting block abuts against the convex column and the side of the auxiliary block close to the inner tooth ratchet.

[0010] Preferably, a fixing shaft is arranged on the winding drum and penetrates the middle of the control cover, a anti-dropping block is arranged at the distal end of the fixing shaft, a tension spring is arranged between the anti-dropping block and the control cover, a first embedding groove and a second embedding groove are arranged on the control cover, and a locking block is arranged on the anti-dropping block and is adapted to be inserted into the first embedding groove and the second embedding groove; when the control cover is turned to the position where the first embedding groove is aligned with the locking block, the limiting block on the control cover is away from the auxiliary block and the ratchet lever; and when the control cover is turned to the position where the second embedding groove is aligned with the locking block, the limiting block on the control cover abuts against the convex column and the auxiliary block.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] 1. The lower buckle and the hanging frame can stably and detachably install the supporting rod body on the open wagon, and have the functions of anti-slip and anti-deflection, and the temporary installation of the supporting rod body is more stable by fixing with the locking member.

[0013] 2. After the installation of the supporting rod body, the inhaul cable is installed on the frame of the two supporting rod bodies and is tightened, and then the safety belt of the worker can be hooked on the inhaul cable after the worker climbs onto the wagon, so as to realize safety protection.

[0014] 3. After the work is completed, the supporting rod can be conveniently detached from the wagon, which can ensure the safety during work and is convenient for installation and detachment, and is beneficial to popularization.

[0015] 4. By arranging multiple auxiliary blocks, the auxiliary blocks can also have centrifugal force when the winding drum is accelerated to rotate, and can assist in pushing the ratchet lever to turn over, so that the ratchet lever can have a more sensitive response in a small installation space.

[0016] 5. The control cover can realize the double-mode switching of free stretching and high-speed stretching of the inhaul cable, and is suitable for different application scenarios.

[0017] 6. By pressing the control cover to overcome the tension of the tension spring, the locking block on the anti-detachment block is disengaged from the first or second groove. Then, rotate the control cover to the appropriate position and align it with the second or first groove. Release the control cover, and the control cover will restore the locking block to the second or first groove under the action of the tension spring. This can position and lock the control cover, which helps to achieve dual-mode switching of the cable in free extension and high-speed tension locking. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the support rod in the safety device for online inspection of iron wagons of the present invention;

[0019] Figure 2 This is a schematic diagram of the descent mechanism in the online inspection safety device for iron wagons of the present invention;

[0020] Figure 3 This is a side view schematic diagram of the slow descent mechanism and control cover in the safety device for online inspection of iron wagons of the present invention.

[0021] The components in the diagram are labeled as follows:

[0022] Support rod 1, support rod body 11, frame 12, hanging bracket 13, lower buckle seat 14, locking part 15, housing 31, drum 32, internal tooth ratchet 33, ratchet bar 34, pawl 35, return spring 36, counterweight block 37, stop block 38, auxiliary block 39, control cover 51, limit block 52, protruding post 53, fixed shaft 61, anti-detachment block 62, tension spring 63, first groove 64, locking block 65. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, a safety device for online inspection of open wagons includes two vertically arranged support rods 1, with a taut cable between the two support rods 1. Each support rod 1 includes a support rod body 11, with a bracket 13 located at the upper middle part of the support rod body 11. The bracket 13 has a downward opening, allowing it to be hung on the upper edge of the wagon. The bottom of the support rod body 11 has a lower buckle 14 that can be engaged with the outer rib of the wagon. The lower buckle 14 has a locking member 15 that locks it to the outer rib of the wagon. The upper part of the support rod body 11 has a frame 12 for installing the cable.

[0025] One end of the cable is fixedly installed on the frame 12 of a support rod 1, and the other end is installed on the frame 12 of another support rod 1 through a slow-descent mechanism.

[0026] like Figure 2As shown, the slow descent mechanism comprises a housing 31, a winding drum 32 rotatably installed in the housing 31, and an internally toothed ratchet wheel 33 arranged around the outer periphery of the winding drum 32, a winding spring is arranged between the winding drum 32 and the housing 31, the internally toothed ratchet wheel 33 is fixedly installed on the housing 31, a plurality of ratchet rods 34 are hingedly connected to the end face of the winding drum 32, a pawl 35 is fixedly connected to the end of the ratchet rod 34 away from the axis of the winding drum 32, the pawl 35 is adapted to engage with the internally toothed ratchet wheel 33, the plurality of ratchet rods 34 are distributed in a circumferential array at equal intervals with respect to the axis of the winding drum 32, a reset spring 36 is fixedly connected to the winding drum 32, one end of the reset spring 36 is connected to the ratchet rod 34, when the winding drum 32 rotates in the unwinding direction, the pawl 35 faces the ratchet groove of the internally toothed ratchet wheel 33, the cable is wound around the winding drum 32, the end of the ratchet rod 34 away from the axis of the winding drum 32 is provided with a counterweight 37, and when the winding drum 32 rotates rapidly under the action of gravity, the centrifugal force acting on the counterweight 37 is sufficient to overcome the elastic force of the reset spring 36 when the reset spring 36 is stretched.

[0027] In addition, the end face of the winding drum 32 is further provided with a stop block 38 for preventing excessive overturning of the ratchet rod 34.

[0028] At the same time, the end face of the winding drum 32 is slidably provided with an auxiliary block 39 corresponding to each ratchet rod 34, the sliding path of the auxiliary block 39 intersects with the trajectory of the rod body in the initial state of the ratchet rod 34, and the reset spring 36 is arranged between the auxiliary block 39 and the winding drum 32.

[0029] As shown in the drawings, Figure 3 the control cover 51 is rotatably installed on the end face of the winding drum 32, the side of the control cover 51 close to the winding drum 32 is fixedly connected with a limiting block 52 for limiting the overturning of the ratchet rod 34 and limiting the sliding of the auxiliary block 39, the middle part of the ratchet rod 34 is provided with a protruding column 53, the limiting block 52 is provided with an arc strip, when the control cover 51 is rotated to the position where the limiting block 52 is located on the trajectory of the auxiliary block 39, the inner arc side of the arc strip of the limiting block 52 abuts against the protruding column 53 and the side of the auxiliary block 39 close to the internally toothed ratchet wheel 33.

[0030] In addition, the winding drum 32 is provided with a fixed shaft 61 penetrating through the middle part of the control cover 51, the distal end of the fixed shaft 61 is provided with an anti-disengagement block 62, the anti-disengagement block 62 is provided with a tension spring 63 between the control cover 51, the control cover 51 is provided with a first embedding groove 64 and a second embedding groove, the anti-disengagement block 62 is provided with a locking block 65 adapted to be inserted into the first embedding groove 64 and the second embedding groove, when the control cover 51 is rotated to the position where the first embedding groove 64 is aligned with the locking block 65, the limiting block 52 on the control cover 51 is away from the auxiliary block 39 and the ratchet rod 34, when the control cover 51 is rotated to the position where the second embedding groove is aligned with the locking block 65, the limiting block 52 on the control cover 51 abuts against the protruding column 53 and the auxiliary block 39.

[0031] In addition, in the present embodiment, a mark can be provided on the outside of the control cover 51 to mark the corresponding relationship between the limiting block 52 and the protruding column 53 as a foolproof design.

[0032] When the embodiment is used, one end of the cable is fixed on the frame body 12, and the other end of the cable is wound on the winding drum 32. When the worker falls by accident, the cable first falls to a certain extent to buffer the worker, and then the cable continues to pay off the winding drum 32. When the winding drum 32 instantaneously accelerates rotation, the centrifugal force of the counterweight block 37 on the ratchet lever 34 drives the ratchet lever 34 to flip away from the rotation direction of the winding drum 32. That is, the pawl 35 on the ratchet lever 32 flips out of the end face of the winding drum 32 and engages with the internal tooth ratchet wheel 33. At this time, the stop block 38 limits the rotation of the ratchet lever 32, so that the internal tooth ratchet wheel 33 locks the winding drum 32. The cable cannot be elongated any more, and the worker hooked on the cable cannot continue to fall, which greatly ensures the safety performance of the worker when he steps on the air and improves the comfort during the fall.

[0033] When the worker moves normally, the winding drum 32 rotates normally on the shell 31, and realizes normal winding and unwinding by relying on the winding spring. The centrifugal force received by the counterweight block 37 on the end face of the winding drum 32 is small and cannot overcome the elastic force of the reset spring 36. The pawl 35 will not be extended, and the internal tooth ratchet wheel 33 will not lock the pawl 35. That is, the winding drum 32 will not be locked, which is beneficial to the free movement of the worker.

[0034] The safety device for the wire inspection operation of the iron open wagon can stably and detachably install the support lever body 11 on the carriage of the iron open wagon through the lower buckle 14 and the hanging bracket 13, and has the functions of anti-slip and anti-deflection. The temporary installation of the support lever body 11 is more stable by fixing the locking part 15. After the installation of the support lever body 11 is completed, the cable is installed on the frame body 12 of the two support lever bodies 11 and is tightened. At this time, the worker can hook the safety belt on the body on the cable after climbing onto the carriage, so as to realize safety protection. After the operation is completed, the support lever 1 can be conveniently detached from the carriage, which can ensure the safety during the operation and is convenient for installation and detachment, and is beneficial to popularization. By arranging a plurality of auxiliary blocks 39, the auxiliary block 39 can also have a centrifugal force when the winding drum 32 accelerates rotation, and can assist in driving the ratchet lever 34 to flip. The ratchet lever 34 can have a more sensitive response in a small installation space. The free stretching and high-speed stretching of the cable can be switched by rotating the control cover 51, which is suitable for different application scenes. By pressing the control cover 51 to overcome the tension of the tension spring 63, the locking block 65 on the anti-dropping block 62 is detached from the first embedded groove 64 or the second embedded groove. Then, the control cover 51 is rotated to the appropriate position and aligned with the second embedded groove or the first embedded groove 64. The control cover 51 is restored to the insertion of the locking block 65 and the second embedded groove or the first embedded groove 64 under the action of the tension spring 63. The control cover 51 can be positioned and locked, which is helpful to realize the double-mode switching of the free stretching and high-speed stretching of the cable.

[0035] It should be noted that the above-mentioned technical solutions are exemplary, and the present specification can be embodied in different forms, and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the present disclosure thorough and complete, and will fully convey the scope disclosed by the present specification to those skilled in the art. In addition, the technical solutions of the present application are only limited by the scope of the claims.

[0036] The aspects disclosed for describing the present specification and claims are merely examples, and therefore the present specification and claims are not limited to the shown details. In the above description, when detailed description of relevant known functions or configurations is determined to unnecessarily obscure the focus of the present specification and claims, detailed description will be omitted.

[0037] Finally, it should be noted that the above is a further detailed description of the application in conjunction with the specific embodiments, and should not be considered as limiting the specific embodiments of the application. For those skilled in the art, any simple replacement without departing from the concept of the present application should be considered as falling within the protection scope of the present application. The above examples are only more representative examples of the present application. Obviously, the present application is not limited to the above examples, and there can be many variations. Any simple modification, equivalent change and modification made in accordance with the technical essence of the present application to the above examples shall be considered as falling within the protection scope of the present application.

Claims

1. A safety device for the inspection operation of the upper line of an open wagon, comprising two vertically arranged support rods (1), characterized in that: Two support rods (1) are provided with a taut cable, the support rod (1) comprises a support rod body (11), a hanger (13) is arranged at an upper middle position of the support rod body (11), the hanger (13) is provided with a downward opening, the hanger (13) can be hung on the upper edge of the carriage through the opening, the bottom of the support rod body (11) is provided with a lower buckle (14) which can be clamped on the external rib of the carriage, the lower buckle (14) is provided with a locking part (15) for locking the lower buckle (14) on the external rib of the carriage, the upper part of the support rod body (11) is provided with a frame (12) for installing the cable, one end of the cable is fixedly installed on the frame (12) of one of the support rods (1), the other end of the cable is installed on the frame (12) of the other support rod (1) through a slow descent mechanism; The slow descent mechanism comprises a shell (31), a winding drum (32) rotatably arranged in the shell (31), and an internal tooth ratchet (33) arranged around the outer periphery of the winding drum (32), a winding spring is arranged between the winding drum (32) and the shell (31), the internal tooth ratchet (33) is fixedly installed on the shell (31), the end face of the winding drum (32) is hingedly connected with a plurality of ratchet rods (34), the end of the ratchet rod (34) away from the axis of the winding drum (32) is fixedly connected with a pawl (35) which is matched with the internal tooth ratchet (33), the plurality of ratchet rods (34) are distributed in an equidistant circumferential array around the axis of the winding drum (32), the winding drum (32) is fixedly connected with a return spring (36) having the other end connected with the ratchet rod (34), when the winding drum (32) rotates in the unwinding direction, the pawl (35) faces the ratchet groove of the internal tooth ratchet (33), the cable is wound on the winding drum (32), the end of the ratchet rod (34) away from the axis of the winding drum (32) is provided with a counterweight (37), and when the winding drum (32) rotates rapidly at the acceleration of gravity, the centrifugal force of the counterweight (37) is sufficient to overcome the elastic force of the return spring (36) when it is stretched, the end face of the winding drum (32) is slidingly provided with an auxiliary block (39) corresponding to the ratchet rod (34), the sliding path of the auxiliary block (39) intersects with the trajectory of the rod body in the initial state of the ratchet rod (34), the return spring (36) is arranged between the auxiliary block (39) and the winding drum (32).

2. The safety device for the visual inspection work at the time of the wagon loading according to claim 1, characterized in that: The control cover (51) is rotatably installed on the end face of the winding drum (32), and is fixed to a limiting block (52) which limits the turnover of the ratchet lever (34) and the sliding of the auxiliary block (39) on one side close to the winding drum (32). The ratchet lever (34) is provided with a protruding column (53) in the middle, and the limiting block (52) is provided with an arc strip. When the control cover (51) is rotated to the limiting block (52) is located on the track of the auxiliary block (39), the inner arc side of the arc strip of the limiting block (52) abuts against the protruding column (53) and the side close to the inner toothed ratchet (33) of the auxiliary block (39). The winding drum (32) is provided with a fixed shaft (61) penetrating the middle of the control cover (51), the distal end of the fixed shaft (61) is provided with an anti-dropping block (62), a tension spring (63) is arranged between the anti-dropping block (62) and the control cover (51), the control cover (51) is provided with a first embedding groove (64) and a second embedding groove, the anti-dropping block (62) is provided with a locking block (65) which is adaptably inserted into the first embedding groove (64) and the second embedding groove. When the control cover (51) is rotated to the first embedding groove (64) is aligned with the locking block (65), the limiting block (52) on the control cover (51) is away from the auxiliary block (39) and the ratchet lever (34), and when the control cover (51) is rotated to the second embedding groove is aligned with the locking block (65), the limiting block (52) on the control cover (51) abuts against the protruding column (53) and the auxiliary block (39).

3. The safety device for the inspection work of the upper line of the open wagon according to claim 1, characterized in that: The end face of the winding drum (32) is further provided with a resisting block (38) which prevents the ratchet lever (34) from excessively turning over.

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