Checking device for anti-falling system of oxygen lance trolley

Abstract

The utility model relates to the technical field of steelmaking converters, in particular to an oxygen lance trolley anti-falling system inspection device. The oxygen lance trolley anti-falling system inspection device provided by the embodiment of the utility model comprises an oxygen lance anti-falling lifting appliance, a first steel wire rope and an oxygen lance crane. The oxygen lance anti-falling lifting appliance comprises a base plate, a first lock arranged on the base plate and a second lock movably arranged on the base plate, and the first lock and the second lock can be locked or separated in an operable mode, that is, the first lock and the second lock can be locked or separated through manual operation. One end of the first steel wire rope is connected to the second lock, and the other end is used for hanging the oxygen lance trolley. The oxygen lance crane is connected with the oxygen lance anti-falling lifting appliance, and the oxygen lance trolley can be lifted through the oxygen lance anti-falling lifting appliance. And when the oxygen lance crane lifts the oxygen lance trolley, the oxygen lance trolley falls under the condition that the first lockset and the second lockset are converted into the separated state from the locked state.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-making converters, in particular to an oxygen lance trolley anti-falling system inspection device. Background Art

[0002] In steel enterprises, converter smelting requires the oxygen lance device to continuously spray oxygen to assist combustion or use the oxygen lance device to continuously spray nitrogen to splash slag. During the converter smelting process, once the oxygen lance trolley falls, there is a risk of converter splashing, which is extremely harmful. Therefore, in accordance with the requirements of steelmaking safety regulations, the oxygen lance trolley in the steelmaking converter should be equipped with an oxygen lance anti-fall system to provide reliable anti-fall protection when the oxygen lance trolley falls due to extreme circumstances, that is, relying on overspeed changes to lock the oxygen lance trolley and the slideway to avoid extreme danger. In order to ensure that the anti-fall function of the oxygen lance anti-fall system is intact, the oxygen lance anti-fall system should be tested before it is put into use, and the periodic functional integrity inspection of the oxygen lance anti-fall system should be carried out after it is put into use.

[0003] However, in the related technology, the inspection of the oxygen lance anti-fall system is difficult to implement, resulting in the inability to ensure the anti-fall function of the oxygen lance anti-fall system. If the oxygen lance anti-fall system fails, the oxygen lance trolley will fall into the furnace, posing a major safety hazard. Utility Model Content

[0004] The present application provides an oxygen lance trolley anti-fall system inspection device, which to a certain extent solves the technical problem in the related art that the inspection work of the oxygen lance anti-fall system is difficult to implement, resulting in the inability to ensure the anti-fall function of the oxygen lance anti-fall system and the existence of safety hazards.

[0005] The embodiment of the present application provides an oxygen lance trolley anti-fall system inspection device, comprising:

[0006] An oxygen lance anti-falling hanger comprises a base plate, a first lock arranged on the base plate, and a second lock movably arranged on the base plate, wherein the first lock and the second lock can be operably locked or separated;

[0007] A first steel wire rope, one end of which is connected to the second lock, and the other end of which is used to hang the oxygen lance trolley;

[0008] An oxygen lance crane is connected to the oxygen lance anti-falling sling and is capable of lifting the oxygen lance trolley through the oxygen lance anti-falling sling;

[0009] When the oxygen lance crane lifts the oxygen lance trolley, the oxygen lance trolley falls down under the condition that the first lock and the second lock are converted from a locked state to a separated state.

[0010] In some embodiments, the second lock is located below the first lock, the second lock includes a main body, the substrate is provided with a slot, the main body is arranged in the slot and hinged to the slot wall of the slot, the main body is provided with a connecting groove and a first locking end, the first steel wire rope is suspended in the connecting groove, and the first locking end is used to lock or separate with the first lock.

[0011] In some embodiments, the first locking end is smoothly connected to a groove wall of the connecting groove on one side facing the substrate.

[0012] In some embodiments, the second lock further includes two reinforcing plates, which are disposed on both sides of the installation slot and connected to the main body, and the reinforcing plates are staggered with respect to the connection slot.

[0013] In some embodiments, the first lock includes a movable bracket, a first locking member and an operating component, the movable bracket is hinged to the base plate, the first locking member is fixedly mounted on one end of the movable bracket, and the first locking member is arranged on the same side as the second lock, the first locking member is used to lock or separate with the first locking end, and the operating component is used to drive the movable bracket to rotate relative to the base plate to drive the first locking member to lock or separate with the first locking end.

[0014] In some embodiments, the first locking member has a locking groove, and the first locking end can be inserted into or disengaged from the locking groove.

[0015] In some embodiments, the operating component includes a second locking member and a pull rope, the second locking member is fixedly mounted on one end of the movable bracket away from the first locking member, and the pull rope is connected to the second locking member and is used to pull the second locking member upward or downward to allow the movable bracket to rotate relative to the base plate.

[0016] In some embodiments, the operating component also includes a lock, which is fixedly arranged on a side of the substrate away from the first locking member, and the second locking member has a second locking end, and the second locking end can be operably locked with or separated from the lock; wherein, under the condition that the first locking member is locked with the first locking end, the second locking end is locked with the lock.

[0017] In some embodiments, the operating component also includes an elastic member, which includes a connecting portion and an abutting portion, the connecting portion is connected to the movable bracket, and the abutting portion is connected to a side of the second locking member away from the substrate, and when the first locking member is locked with the first locking end, the abutting portion abuts against the side of the second locking member away from the substrate through elastic force.

[0018] In some embodiments, the movable bracket includes two movable plates relatively arranged on both sides of the base plate, and the two movable plates extend out of both sides of the base plate, the first locking member is fixedly arranged between one ends of the two movable plates, and the second locking member is fixedly arranged between the other ends of the two movable plates.

[0019] The beneficial effects of this application are as follows:

[0020] The present application provides an oxygen lance trolley anti-fall system inspection device. When the oxygen lance crane lifts the oxygen lance trolley, the oxygen lance trolley falls under the condition that the first lock and the second lock are converted from a locked state to a separated state. Therefore, when it is necessary to test the oxygen lance trolley anti-fall system, the first lock and the second lock are locked first, and the oxygen lance trolley is lifted by the oxygen lance crane. After the oxygen lance trolley is lifted, the first lock and the second lock are separated. At this time, the oxygen lance trolley falls, so that the anti-fall function of the anti-fall system in the oxygen lance trolley can be tested to reduce safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model.

[0022] Figure 1 This is a schematic diagram of the structure of the oxygen lance trolley anti-fall system inspection device provided in an embodiment of the present application.

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the oxygen gun anti-fall lifting device.

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of the oxygen gun anti-fall sling from another angle.

[0025] Figure 4 for Figure 1 Status of oxygen gun anti-fall sling Figure 1 .

[0026] Figure 5 for Figure 1 Status of oxygen gun anti-fall sling Figure 2 .

[0027] Description of reference numerals:

[0028] 100-oxygen gun anti-fall lifting device, 110-base plate, 111-card slot, 112-connecting hole, 120-first lock, 121-movable bracket, 1211-movable plate, 122-first locking member, 1221-locking slot, 123-operating component, 1231-second locking member, 1232-pull rope, 1233-lock buckle, 1234-second locking end, 1235-elastic member, 130-second lock, 131-main body, 132-reinforcement plate, 133-connecting slot, 134-first locking end, 200-first steel wire rope, 300-oxygen gun crane, 310-hook, 320-second steel wire rope, 400-oxygen gun trolley. DETAILED DESCRIPTION

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

[0030] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] An oxygen lance trolley anti-fall system inspection device provided in an embodiment of the present application is used to detect the performance of the oxygen lance trolley anti-fall system. The oxygen lance trolley is connected to the oxygen lance steel wire rope in actual use, and the oxygen lance steel wire rope has the risk of breaking, which will cause the oxygen lance trolley to fall, so the oxygen lance trolley needs to be equipped with an anti-fall system. The oxygen lance trolley anti-fall system inspection device provided in an embodiment of the present application can detect the anti-fall function of the anti-fall system in the oxygen lance trolley to reduce safety hazards.

[0034] Combination Figure 1-Figure 5 The oxygen lance trolley anti-fall system inspection device provided in the embodiment of the present application includes an oxygen lance anti-fall sling 100, a first steel wire rope 200 and an oxygen lance crane 300. The oxygen lance anti-fall sling 100 includes a base plate 110, a first lock 120 arranged on the base plate 110 and a second lock 130 movably arranged on the base plate 110. The first lock 120 and the second lock 130 can be operably locked or separated, that is, the first lock 120 and the second lock 130 can be locked or separated by manual operation. One end of the first steel wire rope 200 is connected to the second lock 130, and the other end is used to hang the oxygen lance trolley 400. The oxygen lance crane 300 is connected to the oxygen lance anti-fall sling 100, and can lift the oxygen lance trolley 400 through the oxygen lance anti-fall sling 100. When the oxygen lance crane 300 lifts the oxygen lance trolley 400 , the oxygen lance trolley 400 falls down under the condition that the first lock 120 and the second lock 130 are converted from the locked state to the separated state.

[0035] When the oxygen lance trolley anti-falling system needs to be tested, the first lock 120 and the second lock 130 of the base plate 110 are first locked so that the second lock 130 is fixed, and then the oxygen lance crane 300 is opened, and the oxygen lance trolley 400 is lifted by the oxygen lance anti-falling lifting device 100. In this process, it is necessary to ensure that the first steel wire rope 200 is in a relaxed state to simulate the state of no stress after the oxygen lance steel wire rope breaks in actual conditions. After the oxygen lance trolley 400 is lifted, the first lock 120 and the second lock 130 are separated so that the second lock 130 is in an active state, and the oxygen lance trolley 400 can fall under the action of gravity. Of course, during the falling process of the oxygen lance trolley 400, at least part of the second lock 130 will be driven to move downward. Since the oxygen lance trolley anti-fall system inspection device provided in the embodiment of the present application can simulate the falling state of the oxygen lance trolley 400, the anti-fall function of the anti-fall system in the oxygen lance trolley 400 can be tested during this process to confirm whether the anti-fall function is effective, so as to reduce safety hazards.

[0036] In some embodiments, the second lock 130 is located below the first lock 120, and the second lock 130 includes a main body 131. The base plate 110 is provided with a slot 111. The main body 131 is disposed in the slot 111 and is hinged to the slot wall of the slot 111, that is, the main body 131 can rotate in the slot 111. The main body 131 is provided with a connecting slot 133 and a first locking end 134. The first steel wire rope 200 is suspended in the connecting slot 133. The first locking end 134 is used to lock or separate from the first lock 120.

[0037] The connecting groove 133 is recessed in the main body 131, and the first steel wire rope 200 is suspended in the connecting groove 133. The groove wall of the connecting groove 133 can limit the first steel wire rope 200 to prevent the first steel wire rope 200 from sliding down the main body 131. The other end of the first steel wire rope 200 is connected to the oxygen gun trolley 400. Since the main body 131 can rotate in the slot 111, and the second lock 130 is located below the first lock 120, the main body 131 is rotated to make the first locking end 134 move upward to achieve the locking of the first locking end 134 and the first lock 120, and move downward to achieve the separation of the first locking end 134 and the first lock 120.

[0038] It should be noted that, according to the orientation of the first locking end 134 relative to the first lock 120, the main body 131 can be rotated clockwise or counterclockwise to achieve the upward or downward movement of the first locking end 134, ensuring that the connecting groove 133 does not face downward during the rotation of the main body 131.

[0039] In some embodiments, the oxygen lance crane 300 is connected to the substrate 110, that is, the oxygen lance crane 300 can lift the oxygen lance trolley 400 through the substrate 110. The oxygen lance crane 300 is connected to the substrate 110 through the second steel wire rope 320. The oxygen lance crane 300 has a hook 310. The top of the substrate 110 is provided with a connecting hole 112. One end of the second steel wire rope 320 is hung on the hook 310, and the other end is passed through the connecting hole 112, so that the oxygen lance crane 300 can lift the substrate 110, thereby lifting the oxygen lance trolley 400. Of course, after the oxygen lance trolley 400 is lifted, it is necessary to ensure that the first steel wire rope 200 is in a relaxed state, and the second steel wire rope 320 must be in a tension state.

[0040] In some embodiments, the first locking end 134 is smoothly connected to the groove wall of the connecting groove 133 on one side facing the substrate 110. That is, the first locking end 134 and the connecting groove 133 can be integrally provided, and the first locking end 134 can be regarded as a groove wall of one side of the connecting groove 133 extending to form the first locking end 134, thereby making the overall structure of the second lock 130 simpler and reducing the manufacturing strength of the second lock 130.

[0041] In some embodiments, the second lock 130 further includes two reinforcing plates 132 , which are disposed on both sides of the installation slot and connected to the main body 131 , and the reinforcing plates 132 are staggered with the connecting slot 133 .

[0042] Since the main body 131 needs to hang the oxygen lance trolley 400, and the oxygen lance trolley 400 has a certain weight, the main body 131 needs a certain structural strength and rigidity. Two reinforcing plates 132 are arranged on both sides of the installation groove and connected to the main body 131, so as to improve the overall structural strength and rigidity of the second lock 130. Since the first steel wire rope 200 is arranged in the connecting groove 133, the reinforcing plate 132 and the connecting groove 133 are staggered, which can avoid the reinforcing plate 132 and the first steel wire rope 200 from interfering with each other.

[0043] In some embodiments, the first lock 120 includes a movable bracket 121, a first locking member 122, and an operating assembly 123. The movable bracket 121 is hinged to the base plate 110, that is, the movable bracket 121 can rotate relative to the base plate 110. The first locking member 122 is fixedly mounted on one end of the movable bracket 121, and the first locking member 122 is arranged on the same side as the second lock 130. The first locking member 122 is used to lock or separate with the first locking end 134. The operating assembly 123 is used to drive the movable bracket 121 to rotate relative to the base plate 110, so as to drive the first locking member 122 to lock or separate with the first locking end 134.

[0044] That is, the movable bracket 121 can be rotated relative to the base plate 110 by manually manipulating the operating assembly 123. Obviously, when the movable bracket 121 rotates clockwise / counterclockwise, one end of the movable bracket 121 moves downward and the other end moves upward; when the movable bracket 121 rotates counterclockwise / clockwise, one end of the movable bracket 121 moves upward and the other end moves downward. Since the second lock 130 is arranged below the first lock 120, that is, the second lock 130 moves upward and the first locking member 122 moves downward, the first locking member 122 can be docked and locked with the first locking end 134, and the second lock 130 moves upward and the first locking member 122 moves downward, the first locking member 122 can be separated from the first locking end 134.

[0045] In some embodiments, the first locking member 122 has a locking groove 1221, and the first locking end 134 can be inserted into or disengaged from the locking groove 1221 to achieve locking and separation of the first locking member 122 and the first locking end 134. That is, the second lock 130 moves upward and the first locking member 122 moves downward, so that the first locking end 134 can be inserted into the locking groove 1221; the second lock 130 moves downward and the first locking member 122 moves upward, so that the first locking end 134 can be disengaged from the locking groove 1221.

[0046] In some embodiments, the operating component 123 includes a second locking member 1231 and a pull rope 1232. The second locking member 1231 is fixedly mounted on one end of the movable bracket 121 away from the first locking member 122. The pull rope 1232 is connected to the second locking member 1231 and is used to pull the second locking member 1231 upward or downward so that the movable bracket 121 rotates relative to the base plate 110.

[0047] It is obvious that when the second locking piece 1231 is pulled upward, the first locking piece 122 moves downward, and when the second locking piece 1231 is pulled downward, the first locking piece 122 moves upward. That is, when the oxygen gun trolley 400 is lifted, the first locking end 134 and the first locking piece 122 need to be changed from a locked state to an unlocked state. The operator needs to pull the second locking piece 1231 downward by the pull rope 1232 to move the first locking piece 122 upward and separate from the first locking end 134 to achieve unlocking. The first locking end 134 moves downward under the action of gravity of the oxygen gun trolley 400.

[0048] In some embodiments, the operating component 123 also includes a lock 1233, which is fixedly disposed at one end of the substrate 110 away from the first locking member 122, and the second locking member 1231 has a second locking end 1234, and the second locking end 1234 can be operably locked with or separated from the lock 1233; wherein, under the condition that the first locking member 122 is locked with the first locking end 134, the second locking end 1234 is locked with the lock 1233.

[0049] Before the oxygen lance trolley 400 is lifted, the first locking piece 122 and the first locking end 134 need to be locked, and it is necessary to ensure that the first locking piece 122 and the first locking end 134 remain in a locked state during the lifting of the oxygen lance trolley 400. Therefore, in order to avoid the movable bracket 121 rotating during the lifting of the oxygen lance trolley 400, which causes the first locking piece 122 and the first locking end 134 to be unlocked in advance, the embodiment of the present application is fixedly provided with a lock buckle 1233 at one end of the substrate 110 away from the first locking piece 122, and when the first locking piece 122 is locked with the first locking end 134, the second locking end 1234 is also locked with the lock buckle 1233, so that the movable bracket 121 can be fixed to the substrate 110 to ensure that the first locking piece 122 and the first locking end 134 remain in a locked state. When the first locking member 122 and the first locking end 134 need to be unlocked, the second locking member 1231 is pulled downward so that the second locking end 1234 is also separated from the lock buckle 1233 , so that the first locking member 122 can move upward to be separated from the first locking end 134 .

[0050] Since the second locking member 1231 needs to be pulled downward when the first locking member 122 and the first locking end 134 need to be unlocked, the length of the first locking end 134 can be set so that when the first locking member 122 and the first locking end 134 are locked, the movable bracket 121 is slightly tilted so that the height of the second locking member 1231 is slightly higher than the height of the first locking member 122, so as to facilitate the subsequent pulling of the second locking member 1231 downward.

[0051] In some embodiments, in order to further ensure the locking force between the lock buckle 1233 and the second locking end 1234, the operating component 123 also includes an elastic member 1235, and the elastic member 1235 includes a connecting portion and an abutting portion. The connecting portion is connected to the movable bracket 121, and the abutting portion is connected to the side of the second locking member 1231 away from the substrate 110. When the first locking member 122 is locked with the first locking end 134, the abutting portion abuts against the side of the second locking member 1231 away from the substrate 110 through elastic force.

[0052] Since the lock buckle 1233 is fixedly set on the base plate 110, it is obvious that the second locking end 1234 is set on the side of the second locking member 1231 close to the base plate 110, so that when the first locking member 122 is locked with the first locking end 134, the abutting portion abuts against the side of the second locking member 1231 away from the base plate 110 through elastic force, which can further tighten the second locking end 1234 to the lock buckle 1233, thereby increasing the locking force between the lock buckle 1233 and the second locking end 1234. When the operator pulls the second locking member 1231 downward through the pull rope 1232, the second locking end 1234 will overcome the elastic force and disengage from the lock buckle 1233.

[0053] In some embodiments, the movable bracket 121 includes two movable plates 1211 relatively arranged on both sides of the substrate 110, and the two movable plates 1211 extend out of both sides of the substrate 110, the first locking member 122 is fixedly arranged between one ends of the two movable plates 1211, and the second locking member 1231 is fixedly arranged between the other ends of the two movable plates 1211.

[0054] Since the two movable plates 1211 extend out of both sides of the base plate 110, that is, the first locking member 122 is fixedly arranged between one end of the two movable plates 1211, and the second locking member 1231 is fixedly arranged between the other end of the two movable plates 1211, the first locking member 122 and the second locking member 1231 will not interfere with each other with the base plate 110, so as to facilitate the operation of the first locking member 122 and the second locking member 1231.

[0055] Next, the method for using the oxygen lance trolley anti-fall system inspection device provided in the embodiment of the present application is described:

[0056] The maintenance personnel first connect the second lock 130 and the oxygen gun trolley 400 through the first steel wire rope 200, and then manually rotate the movable bracket 121 and the second lock 130 to make the first locking end 134 snap into the locking groove 1221, and at the same time, the second locking end 1234 is also snapped into the lock buckle 1233, so that the movable bracket 121 is fixed. After the above steps are completed, the locking and tightening functions between the oxygen gun anti-fall hoist 100 and the oxygen gun trolley 400 are realized, and the conditions for the oxygen gun crane 300 to hoist and lift the oxygen gun anti-fall hoist 100 and the oxygen gun trolley 400 are met.

[0057] Then, the maintenance personnel connect the base plate 110 and the oxygen gun crane 300 through the second steel wire rope 320, and turn on the oxygen gun crane 300, and vertically lift the oxygen gun anti-fall hoist 100 and the oxygen gun trolley 400 to a height of 2m, and ensure that the oxygen gun steel wire rope is in a relaxed state. Finally, the maintenance personnel stand on the maintenance platform and use the pull rope 1232 to manually pull the second locking member 1231, so that the second locking end 1234 overcomes the elastic force and disengages from the lock buckle 1233, and the second lock 130 is automatically released, and the oxygen gun trolley 400 instantly drops under gravity. After the oxygen gun anti-fall system detects that the oxygen gun trolley 400 is stalled, the braking mechanism is triggered to hold the oxygen gun trolley 400 within the designed braking distance range of 600mm to achieve the anti-fall effect, thereby completing the commissioning of the oxygen gun anti-fall system. After the oxygen lance trolley anti-fall system inspection device is put into use, the above method is used to regularly inspect the anti-fall function of the converter oxygen lance, which can improve the problem of the converter oxygen lance's anti-fall function failing during use and the corresponding safety hazards.

[0058] The oxygen lance trolley anti-fall system inspection device provided in the embodiment of the present application can verify whether the normal operation and performance indicators of the oxygen lance anti-fall system of the steelmaking converter meet the design requirements, ensure the reliability and safety before it is put into production or use, and ensure the periodic functional integrity inspection of the oxygen lance anti-fall system after it is put into use, thereby improving the safety factor of the oxygen lance anti-fall safety device during the investment and operation period, reducing the safety risk of the oxygen lance falling into the furnace due to the failure of the oxygen lance anti-fall function and causing water ingress into the converter furnace, while reducing the economic losses caused by damage to equipment and facilities.

[0059] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0060] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An oxygen lance trolley anti-fall system inspection device, characterized in that: include: An oxygen lance anti-falling hanger comprises a base plate, a first lock arranged on the base plate, and a second lock movably arranged on the base plate, wherein the first lock and the second lock can be operably locked or separated; A first steel wire rope, one end of which is connected to the second lock, and the other end of which is used to hang the oxygen lance trolley; An oxygen lance crane is connected to the oxygen lance anti-falling sling and is capable of lifting the oxygen lance trolley through the oxygen lance anti-falling sling; When the oxygen lance crane lifts the oxygen lance trolley, the oxygen lance trolley falls down under the condition that the first lock and the second lock are converted from a locked state to a separated state.

2. The oxygen gun trolley anti-fall system inspection device according to claim 1 is characterized in that: The second lock is located below the first lock, and the second lock includes a main body. The base plate is provided with a slot, the main body is arranged in the slot and hinged to the slot wall of the slot, the main body is provided with a connecting groove and a first locking end, the first steel wire rope is suspended in the connecting groove, and the first locking end is used to lock or separate with the first lock.

3. The oxygen gun trolley anti-fall system inspection device according to claim 2 is characterized in that: The first locking end is smoothly connected to a groove wall of the connecting groove on one side facing the base plate.

4. The oxygen lance trolley anti-fall system inspection device according to claim 2 is characterized in that: The second lock also includes two reinforcing plates, which are respectively arranged on both sides of the card slot and connected to the main body, and the reinforcing plates are staggered with the connecting slot.

5. The oxygen lance trolley anti-fall system inspection device according to claim 2 is characterized in that: The first lock includes a movable bracket, a first locking member and an operating assembly, the movable bracket is hinged to the base plate, the first locking member is fixedly mounted on one end of the movable bracket, and the first locking member is arranged on the same side as the second lock, the first locking member is used to lock or separate with the first locking end, and the operating assembly is used to drive the movable bracket to rotate relative to the base plate to drive the first locking member to lock or separate with the first locking end.

6. The oxygen lance trolley anti-fall system inspection device according to claim 5 is characterized in that: The first locking member has a locking groove, and the first locking end can be inserted into or released from the locking groove.

7. The oxygen lance trolley anti-fall system inspection device according to claim 5 is characterized in that: The operating assembly includes a second locking member and a pull rope, wherein the second locking member is fixedly mounted on an end of the movable bracket away from the first locking member, and the pull rope is connected to the second locking member and is used to pull the second locking member upward or downward to rotate the movable bracket relative to the base plate.

8. The oxygen lance trolley anti-fall system inspection device according to claim 7 is characterized in that: The operating component also includes a lock, which is fixedly arranged on a side of the substrate away from the first locking member, and the second locking member has a second locking end, and the second locking end can be operably locked with or separated from the lock; wherein, under the condition that the first locking member is locked with the first locking end, the second locking end is locked with the lock.

9. The oxygen lance trolley anti-fall system inspection device according to claim 8 is characterized in that: The operating component also includes an elastic member, which includes a connecting portion and an abutting portion. The connecting portion is connected to the movable bracket, and the abutting portion is connected to a side of the second locking member away from the substrate. When the first locking member is locked with the first locking end, the abutting portion abuts against the side of the second locking member away from the substrate through elastic force.

10. The oxygen lance trolley anti-fall system inspection device according to claim 7 is characterized in that: The movable bracket includes two movable plates arranged opposite to each other on both sides of the base plate, and the two movable plates extend out of both sides of the base plate, the first locking member is fixedly arranged between one ends of the two movable plates, and the second locking member is fixedly arranged between the other ends of the two movable plates.

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