A silo roof rescue device

Abstract

The utility model belongs to the technical field of grain storage, disclose a kind of granary roof rescue device, including support, auxiliary frame and the connecting rod being horizontally arranged on the support, at least two sliding sleeves are sleeved on the connecting rod, a sliding sleeve is connected with climber, another sliding sleeve is connected with anti-falling device, two guide rods are equipped on the support, two The guide rod is horizontally arranged and is distributed in the connecting rod both ends in parallel and side spacing, the guide rod is perpendicular to the connecting rod, the connecting rod both ends are slidably connected with corresponding guide rod, locking assembly is equipped on the auxiliary frame, the locking assembly is cooperated with the auxiliary frame can make the auxiliary frame drive the connecting rod move in the guide rod length direction and can be fixed on two The connecting rod on the guide rod.The utility model has the following advantages and effects: auxiliary frame and locking assembly can quickly adjust the position of connecting rod and fix connecting rod, prevent connecting rod from moving position during rescue, and the climber is electric, improve rescue efficiency.

Description

Technical Field

[0001] This utility model relates to the field of grain storage technology, and in particular to a grain silo roof rescue device. Background Technology

[0002] Vertical silos, as a modern type of grain storage silo, are characterized by small single-silo capacity, a large number of silos, small footprint, and high outflow efficiency. Buffer silos are facilities used to optimize grain storage processes, reduce losses, and improve management efficiency. Vertical silos and buffer silos play an important role in storing and transporting materials. Due to their structural characteristics, the roofs of these grain silos may encounter emergencies such as workers getting trapped during use. Previously, in such emergencies, a tripod was used for manual rescue. However, manual rescue with a tripod is difficult to operate and inefficient, and the safety of workers is not guaranteed. To ensure safe operation, a rescue device with high efficiency is needed to serve workers during production operations. Utility Model Content

[0003] The purpose of this invention is to provide a grain silo roof rescue device that improves rescue efficiency.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a grain silo roof rescue device, including a support frame, an auxiliary frame, and a connecting rod arranged horizontally on the support frame. At least two sliding sleeves are fitted on the connecting rod, one of which is connected to a rope climber, and the other is connected to a fall arrestor. The support frame is provided with two guide rods, both of which are arranged horizontally and are parallel to each other and spaced apart at both ends of the connecting rod. The guide rods are perpendicular to the connecting rods, and both ends of the connecting rods are slidably connected to the corresponding guide rods. The auxiliary frame is provided with a locking component, which cooperates with the auxiliary frame to enable the auxiliary frame to drive the connecting rod to move along the length direction of the guide rods and to fix the connecting rods to the two guide rods.

[0005] By adopting the above technical solution, the support frame is placed on the vertical silo and the first-phase buffer silo so that the entrance is located inside the support frame. Workers use the auxiliary frame and locking components to drive the connecting rod to move on the guide rod until the connecting rod is directly above the entrance. Then, the locking components fix the connecting rod to the guide rod. Workers move two sliding sleeves to position the rope climber and fall arrestor directly above the entrance. Workers are equipped with fall arrestors and use the climbing device to enter the silo through the entrance. Then, workers inside the silo who need to be rescued are equipped with rope climbers and fall arrestors. The rope climber is used to quickly lift the workers who need to be rescued to a safe area. The end of the rope climber can be connected to a rescue basket or stretcher as needed. Workers who need to be rescued are placed in the rescue basket or stretcher for rapid rescue. The auxiliary frame and locking components can quickly adjust and fix the position of the connecting rod to prevent it from moving during rescue. The rope climber is electric, which is more efficient than manual rescue, thus improving the overall rescue efficiency.

[0006] A further feature of this invention is that: both ends of the connecting rod are provided with guide grooves for the corresponding guide rods to be inserted into; the guide rod has a strip-shaped slider extending along its length on the side near the connecting rod; and each guide groove has a groove on its groove wall for the corresponding strip-shaped slider to be inserted into.

[0007] By adopting the above technical solution, the guide groove and slide groove on the connecting rod, along with the use of the guide rod and strip slider, give the guide rod strong guiding properties, making it easy for the connecting rod to move on the guide rod.

[0008] A further feature of this invention is that: both ends of the connecting rod are provided with through holes penetrating one side wall of the corresponding guide groove; the locking assembly includes two rod bodies 1 passing through the corresponding through holes, the rod bodies 1 being parallel to the connecting rod; one end of the rod body 1 abutting against the side of the guide rod in the corresponding guide groove; the other end of the rod body 1 extending out of the through hole and fixed with a rod body 2 perpendicular to the rod body 1; a rod body 3 fixed at the end of the rod body 2 away from the rod body 1; two rod bodies 3 being arranged side by side with a gap between the two rod bodies 2 and both being parallel to each other; both rod bodies 3 being located within the auxiliary frame; and each rod body 3 being fitted with a telescopic spring, the two ends of which are fixed to the auxiliary frame and the outer side of the corresponding rod body 3, respectively. A driving block is provided between the two rods. An installation hole is provided on the auxiliary frame, and a driving rod is inserted through the installation hole. One end of the driving rod is located outside the auxiliary frame, and the other end is fixedly connected to one side of the driving block. The two rods are symmetrically arranged on both sides of the driving rod and are perpendicular to the driving rod. The two opposite sides of the driving block have inclined surfaces that extend from the middle of the driving block toward the end of the driving block where the driving rod is fixed. The opposite ends of the two rods respectively abut against the corresponding inclined surfaces on the driving block.

[0009] By adopting the above technical solution, under the extension and retraction of the two telescopic springs, the first rod will press against the outside of the guide rod, fixing the connecting rod to the two guide rods. The worker pushes the drive rod by hand to move the drive rod in the mounting hole, thereby moving the drive block. At this time, the drive block moves along the length of the drive rod. Due to the inclined surface, the drive block will drive the two rods to move away from each other when it moves, so that the two rods do not abut against the side of the corresponding guide rod. Then, the worker pulls the auxiliary frame to drive the connecting rod to slide freely on the guide rod. The drive rod is set on the auxiliary frame. One worker can complete the work of moving the connecting rod, which is very convenient and quick.

[0010] The present invention is further configured as follows: the auxiliary frame includes two auxiliary rods 1, two auxiliary rods 2, an auxiliary rod 3, and a vertically arranged support rod. The two ends of the auxiliary rod 2 are respectively fixed to one end of the auxiliary rod 1 and one end of the auxiliary rod 3. The auxiliary rod 1 and the auxiliary rod 3 are parallel, and the auxiliary rod 2 is perpendicular to the auxiliary rod 1 and the auxiliary rod 3. The auxiliary rod 1, the auxiliary rod 2, and the auxiliary rod 3 are all hollow. The portions of the two rods 1 extending out of the through holes are located inside the corresponding auxiliary rod 1. The two rods 2 are located inside the corresponding auxiliary rod 2. The two rods 3 are arranged side by side at intervals inside the auxiliary rod 3. The mounting hole is located in the middle of one side of the auxiliary rod 3 and communicates with the interior of the auxiliary rod 3. The telescopic spring and the driving block are both located inside the auxiliary rod 3. The upper end of the support rod is fixed to one side of the middle portion of the auxiliary rod 3.

[0011] By adopting the above technical solution, the auxiliary frame facilitates the movement of the connecting rod by the staff. The support rod on the auxiliary frame provides support and also makes it easy for the staff to hold the support rod and drive the connecting rod to move on the guide rod. This provides convenience for adjusting the position of the connecting rod on the guide rod. Here, the support rod is located in the middle of the third auxiliary rod. When the staff holds the support rod and drives the guide rod to move, the two ends of the connecting rod are evenly stressed, and the problem of the connecting rod getting stuck on the guide rod is not easy to occur. This saves time for the rescue and improves the efficiency of the rescue.

[0012] A further feature of this invention is that the end of the drive rod extending out of the mounting hole and located on the outer side of the auxiliary rod has an annular boss.

[0013] By adopting the above technical solution, the annular boss can increase the contact area when the operator operates the drive lever, thereby improving the operator's comfort when operating the drive lever.

[0014] A further feature of this invention is that a threaded hole penetrating the inner wall is provided on the outer side of the sliding sleeve, and a fixing bolt is screwed into the threaded hole, with the end of the fixing bolt abutting against the outer side of the connecting rod.

[0015] By adopting the above technical solution, the sliding sleeve is fixed to the connecting rod with fixing bolts, preventing the sliding sleeve from moving during rescue and ensuring the normal progress of the rescue.

[0016] A further feature of this invention is that the sliding sleeve is provided with a hanging ring, and a hook is installed on the hanging ring.

[0017] By adopting the above technical solution, hanging rings and hooks are set up to facilitate the connection of the rope climber and fall arrestor with the corresponding sliding sleeve.

[0018] The present invention is further configured as follows: the bracket includes four vertically arranged columns, which are distributed in a rectangular array. A guide rod is fixed between the upper sides of two adjacent columns in two groups. A crossbar is provided between the upper sides of two adjacent columns in another two groups. A crossbar is provided near the lower end of the sides of three adjacent columns. An inclined reinforcing rod is provided between two adjacent columns and the corresponding crossbar in another group. The four columns are connected to the two crossbars, the two guide rods, the three crossbars, and the two reinforcing rods by angle brackets. Each column includes a pole one and a pole two. A strip groove penetrating the lower end is opened on one side of the upper end of the pole one. The lower end of the pole two is located in the strip groove and is fixed to the pole one by a wing bolt and a nut.

[0019] By adopting the above technical solution, the bracket is connected by corner brackets to facilitate disassembly, and the bracket is designed to be detachable for easy storage and movement; the two uprights have reinforcing rods at their lower ends but no crossbars, which facilitates the entry and exit of personnel from the bracket and the removal of rescued personnel; since upright one and upright two are connected by wing bolts and nuts, the uprights can be folded when the bracket is disassembled, which provides convenience for storing the uprights.

[0020] A further feature of this invention is that: each of the four columns is provided with a mounting base at its lower end; each mounting base is equipped with a movable wheel and has a positioning screw hole; a vertically arranged positioning screw is screwed into the positioning screw hole; and a support is fixed to the lower end of the positioning screw.

[0021] By adopting the above technical solution, the movable wheels facilitate the movement of this rescue device. The positioning screw can be screwed in and out of the positioning screw hole to adjust the height of the support. When it is necessary to move this rescue device, the staff screws the positioning screw into the positioning screw hole so that the lower end of the support is higher than the lower end of the movable wheel. This makes it easy to move the support. After the support is moved to the appropriate position, the positioning screw is screwed out of the positioning screw hole so that the support moves downward until the lower end of the support is flush with the lower end of the movable wheel. This avoids the movement of the support affecting the rescue during the rescue.

[0022] A further feature of this invention is that: a horizontal mounting rod is fixed to the side of each column, and a base plate is fixed to the lower end of each of the four columns, wherein the cross-sectional area of ​​the base plate is larger than that of the column.

[0023] By adopting the above technical solutions, the installation rod facilitates the connection between the bracket and the wall, and the base plate increases the contact area and improves the stability of the bracket.

[0024] The beneficial effects of this utility model are:

[0025] 1. The setting of locking components and auxiliary frame: The auxiliary frame is set up to facilitate the movement of the connecting rod position by the staff. The locking components and auxiliary frame work together to quickly press both ends of the connecting rod against the corresponding guide rod at the same time, thereby fixing both ends of the connecting rod to the corresponding guide rod at the same time, preventing the rescue from being affected by the displacement of the connecting rod. Only one staff member is needed to operate the locking components and auxiliary frame, which provides convenience for the rescue and improves the efficiency of the rescue.

[0026] 2. Fixing bolts secure the sliding sleeve to the connecting rod, preventing it from moving on the connecting rod during rescue operations, thereby improving rescue efficiency.

[0027] 3. The rope climbing device here is electric, which significantly improves rescue efficiency compared to manual rescue devices. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0029] Figure 2 This is a cross-sectional view of the bracket and connecting rod in Embodiment 1 of this utility model.

[0030] Figure 3 This is a schematic diagram of the connecting rod and sliding sleeve in Embodiment 1 of this utility model.

[0031] Figure 4 This is a schematic diagram showing the connection between the auxiliary frame and the locking component in Embodiment 1 of this utility model.

[0032] Figure 5 This is a schematic diagram of the auxiliary frame in Embodiment 1 of this utility model.

[0033] Figure 6 This is a cross-sectional view of the auxiliary frame and locking assembly in Embodiment 1 of this utility model.

[0034] Figure 7 This is a schematic diagram of the drive rod and drive block in Embodiment 1 of this utility model.

[0035] Figure 8 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0036] In the diagram, 1. Bracket; 11. Column; 111. Upright pole one; 111a. Strip groove; 112. Upright pole two; 113. Wing bolt; 114. Nut; 12. Guide rod; 121. Strip slider; 13. Crossbar one; 14. Crossbar two; 15. Reinforcing rod; 16. Angle bracket; 17. Mounting rod; 18. Mounting base; 181. Positioning screw hole; 19. Support; 191. Positioning screw; 2. Auxiliary frame; 21. Auxiliary pole one; 22. Auxiliary pole two; 23. Auxiliary... 3. Rod 3; 231. Mounting hole; 24. Support rod; 3. Connecting rod; 31. Guide groove; 311. Sliding groove; 32. Through hole; 4. Sliding sleeve; 41. Threaded hole; 42. Hanging ring; 43. Hook; 5. Rope climber; 6. Locking assembly; 61. Rod body 1; 62. Rod body 2; 63. Rod body 3; 64. Telescopic spring; 65. Drive block; 651. Inclined surface; 66. Drive rod; 661. Annular boss; 7. Fixing bolt; 8. Fall arrestor; 9. Moving wheel; 10. Base plate. Detailed Implementation

[0037] Example 1: A grain silo roof rescue device, such as Figure 1 and Figure 2As shown, the system includes a support 1 made of aluminum profile. The support 1 includes four vertically arranged columns 11 in a rectangular array. A guide rod 12 is fixed between the upper sides of two adjacent columns 11 in each group, with the two guide rods 12 arranged parallel and spaced apart. A first horizontal bar 13 is provided between the upper sides of two adjacent columns 11 in each group, with the two horizontal bars 13 arranged parallel and spaced apart. The guide rods 12 are perpendicular to the first horizontal bar 13. A second horizontal bar 14 is provided near the lower end of the side of three adjacent columns 11. An inclined reinforcing rod 15 is provided between two adjacent columns 11 and their corresponding first horizontal bar 13 in another group. The four columns 11, two first horizontal bars 13, two guide rods 12, and three second horizontal bars 14 are connected by... Both reinforcing rods 15 are connected by angle brackets 16. Each column 11 includes a first column 111 and a second column 112. The upper end of the first column 111 has a strip groove 111a extending through the lower end. The lower end of the second column 112 is located in the strip groove 111a, and a through hole extending to the other side is opened on one side of this end. The wall of the through hole is threaded. On the opposite sides of the groove wall of the strip groove 111a, near the upper end of the first column 111, there are oblong holes extending toward the opening of the groove 111a. The oblong holes are penetrated by the groove wall of the strip groove 111a through the outer groove wall of the first column 111. A wing bolt 113 is inserted into the two oblong holes of the first column 111. The wing bolt 113 is screwed into the through hole of the second column 112. A nut 114 is screwed onto the upper part. The head of the wing bolt 113 and the nut respectively abut against one side of the upright 111 with two oblong holes. During rescue, the upright 112 is fixed to the upright 111 using the wing bolt 113 and the nut 114. The wing bolt 113 and the nut 114 are respectively located at the ends of the two oblong holes near the bottom of the slot 111a. After the rescue, the workers can use tools to rotate the nut 114 to move it away from the side of the upright 111 abutting on the wing bolt 113. Then, rotate the wing bolt 113 so that its head is away from the other side of the upright 111 abutting on the upright 111. The workers then move the upright 112 so that the wing bolt 113 is close to the slot 111a near the oblong hole. One end of the slot is then swung around the screw on the wing bolt 113 until the upper end of the upright 112 is located near the lower end within the strip groove 111a. The upright 11 here is foldable for easy storage. This embodiment is suitable for vertical silos with multiple compartments. Each of the four uprights 11 has a mounting base 18 at its lower end. The mounting base 18 is equipped with a movable wheel 9 and a positioning screw hole 181. A vertical positioning screw 19 is screwed into the positioning screw hole 181. A support 191 is fixed to the lower end of the positioning screw 19. The movable wheel 9 facilitates the movement of this rescue device. During rescue, the positioning screw 19 is rotated so that the lower end of the support 191 is flush with the lower end of the corresponding movable wheel 9. The positioning screw 19 and the support 191 support the corresponding movable wheel 9.This ensures that support 1 will not move during rescue, improving both safety and efficiency.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, a connecting rod 3 is provided between the two guide rods 12. The connecting rod 3 is arranged laterally, and the two guide rods 12 are both arranged laterally and distributed at both ends of the connecting rod 3. The guide rods 12 are perpendicular to the connecting rod 3. Guide grooves 31 are opened on the lower side of both ends of the connecting rod 3 for the corresponding guide rods 12 to be inserted. The side of the guide rod 12 near the connecting rod 3 has a strip-shaped slider 121 extending along its length direction. Each guide groove 31 has a groove 311 on its groove wall for the corresponding strip-shaped slider 121 to be inserted. At least two sliding sleeves 4 are fitted on the connecting rod 3. Here, the number of sliding sleeves 4 is two, and each sliding sleeve 4 Each outer side is provided with a threaded hole 41 that penetrates the inner sidewall. A fixing bolt 7 is screwed into the threaded hole 41. The end of the fixing bolt 7 is pressed against the outer side of the connecting rod 3. Each sliding sleeve 4 is provided with a hanging ring 42. A hook 43 is connected to the hanging ring 42. A rope climber 5 is hung on the hook 43 on one sliding sleeve 4, and a fall arrestor 8 is hung on the hook 43 on the other sliding sleeve 4. The rope climber 5 here is made of reinforced nylon structure, is battery powered, and has functions such as wired and wireless operation, power failure self-locking, emergency stop, electromagnetic brake, and slow descent. It is used in conjunction with a special traction rope.

[0039] like Figures 1 to 7As shown, the bracket 1 is also connected to an auxiliary frame 2 and a locking assembly 6. Both ends of the connecting rod 3 have through holes 32 penetrating one side of the corresponding guide groove 31. The locking assembly 6 includes two rods 61 passing through the corresponding through holes 32. Rods 61 are parallel to the connecting rod 3. One end of rod 61 abuts against the side of the guide rod 12 in the corresponding guide groove 31. The other end of rod 61 extends out of the through hole 32 and is fixed with a rod 62 perpendicular to rod 61. A rod 63 is fixed to the end of rod 62 away from rod 61. The two rods 63... 63 are arranged side-by-side between two rods 62 and are parallel to rod 61; the auxiliary frame 2 includes two auxiliary rods 21, two auxiliary rods 22, an auxiliary rod 23, and a vertically arranged support rod 24. Auxiliary rods 21, 22, and 23 are all hollow. The two ends of one auxiliary rod 22 are fixedly connected to one end of one auxiliary rod 21 and one end of one auxiliary rod 23, respectively. The portions of the two rods 61 extending out of the through holes 32 are located within the corresponding auxiliary rods 21, and the two rods 62 are located within the corresponding auxiliary rods 21. Inside the auxiliary rod 22, two rods 3 63 are arranged side by side with intervals inside the auxiliary rod 3 23. Each rod 3 63 is fitted with a telescopic spring 64. The two ends of the telescopic spring 64 are fixed to the inner wall of the auxiliary rod 3 23 and the outer side of the corresponding rod 3 63, respectively. A driving block 65 is provided between the two rods 3 63. A driving rod 66 is fixed to the middle of one side of the driving block 65. The driving rod 66 is perpendicular to the rod 3 63. A mounting hole 231 for the driving rod 66 to pass through is opened in the middle of one side of the auxiliary rod 3 23. The mounting hole 231 extends from the outer side of the auxiliary rod 3 23 through the inner side wall. One end of the drive rod 66 extends out of the mounting hole 231 and is located outside the auxiliary rod 23, and the outer periphery of this end has an annular boss 661. A vertical support rod 24 is fixed on one side of the middle of the auxiliary rod 23. Two rods 63 are symmetrically arranged on both sides of the drive rod 66. The driving block 65 has inclined surfaces 651 on both sides of the opposite side, which extend from the middle of the driving block 65 toward the side end of the driving rod 66 fixed to the driving block 65. The opposite ends of the two rods 63 abut against the corresponding inclined surfaces 651 on the driving block 65. Here, the cross-section of the driving block 65 is trapezoidal.

[0040] Working principle: After installing the bracket 1, connecting rod 3, auxiliary frame 2, sliding sleeve 4, rope climber 5, and fall arrestor 8, place the bracket 1 at the entrance of the warehouse. The operator presses the drive rod 66 to pull the support rod 24, causing the connecting rod 3 to move along the guide rod 12 until it is directly above the entrance of the warehouse. Releasing the drive rod 66 causes the two rods 63 to move closer together under the action of the extension spring 64. The drive rod 66 returns to its original position, and the two rods 61 also return to their original positions and abut against the sides of the corresponding guide rods 12, simultaneously fixing both ends of the connecting rod 3 to the corresponding guide rods 12. Here, the support rod 24 is located in the middle of the auxiliary rod 23. When personnel use the auxiliary frame 2 to drive the connecting rod 3 to move, the two ends of the connecting rod 3 are evenly stressed, making the connecting rod 3 move smoothly on the guide rod 12. The locking component 6 cooperates with the auxiliary frame 2 to fix the connecting rod 3 on the guide rod 12, preventing the connecting rod 3 from moving on the guide rod 12 during rescue and affecting rescue efficiency. The sliding sleeve 4 moves the rope climber 5 and the fall arrestor 8 to the entrance of the cabin. The fixing bolt 7 fixes the sliding sleeve 4 on the connecting rod 3, preventing the sliding sleeve 4 from moving on the connecting rod 3 during rescue. The rope climber 5 here is electric, and the lifting speed is greater than that of manual rescue, which improves the rescue speed. The fall arrestor 8 is set up to be used in conjunction with the rope climber 5 to improve the safety of the rescue.

[0041] Example 2: The difference between this example and Example 1 is that, as Figure 8 As shown, a horizontal mounting rod 17 is fixed to the side of the column 11. The mounting rod 17 on the column 11 facilitates connection and fixation to the wall. The bottom of the four columns 11 is fixed with a base plate 10. The cross-sectional area of ​​the base plate 10 is larger than that of the column 11. This embodiment is applicable to the first-phase buffer chamber. Due to the presence of equipment and space limitations on the top of the buffer chamber, the base plate 10 is set to increase the stress area, thereby improving the stability of the support 1.

Claims

1. A grain silo roof rescue device, characterized in that: The system includes a support (1), an auxiliary frame (2), and a connecting rod (3) arranged laterally on the support (1). At least two sliding sleeves (4) are fitted on the connecting rod (3). One of the sliding sleeves is connected to a rope climber (5), and the other sliding sleeve is connected to a fall arrester (8). The support (1) is provided with two guide rods (12). Both guide rods (12) are arranged laterally and are parallel to each other and spaced apart at both ends of the connecting rod (3). The guide rods (12) are perpendicular to the connecting rod (3). The two ends of the connecting rod (3) are slidably connected to the corresponding guide rods (12). The auxiliary frame (2) is provided with a locking component (6). The locking component (6) cooperates with the auxiliary frame (2) to enable the auxiliary frame (2) to drive the connecting rod (3) to move in the length direction of the guide rod (12) and to fix the connecting rod (3) on the two guide rods (12).

2. The grain silo roof rescue device according to claim 1, characterized in that: The lower sides of both ends of the connecting rod (3) are provided with guide grooves (31) for the corresponding guide rod (12) to be inserted. The guide rod (12) has a strip-shaped slider (121) extending along its length direction on the side near the connecting rod (3). Each guide groove (31) has a groove (311) on its groove wall for the corresponding strip-shaped slider (121) to be inserted.

3. A grain silo roof rescue device according to claim 2, characterized in that: Both ends of the connecting rod (3) are provided with through holes (32) penetrating one side wall of the corresponding guide groove (31). The locking assembly (6) includes two rods (61) passing through the corresponding through holes (32). The rods (61) are parallel to the connecting rod (3). One end of the rods (61) abuts against the side of the guide rod (12) in the corresponding guide groove (31). The other end of the rods (61) extends out of the through hole (32) and is fixed with a rod perpendicular to the rods (61). Two (62), one end of the second rod (62) away from the first rod (61) is fixed with a third rod (63). Two third rods (63) are arranged side by side and spaced apart between the two second rods (62) and are parallel to each other with the first rod (61). Both third rods (63) are located inside the auxiliary frame (2). Each third rod (63) is fitted with a telescopic spring (64). The two ends of the telescopic spring (64) are fixed on the auxiliary frame (2) and on the outside of the corresponding third rod (63). A drive block (65) is provided between the two rods (63). An installation hole (231) is provided on the auxiliary frame (2). A drive rod (66) is inserted through the installation hole (231). One end of the drive rod (66) is located outside the auxiliary frame (2) and the other end is fixed to one side of the drive block (65). The two rods (63) are symmetrically arranged on both sides of the drive rod (66) and are perpendicular to the drive rod (66). The two opposite sides of the drive block (65) have inclined surfaces (651) extending obliquely from the middle of the drive block (65) toward the side end of the drive rod (66) fixed to the drive block (65). The opposite ends of the two rods (63) respectively abut against the corresponding inclined surfaces (651) on the drive block (65).

4. A grain silo roof rescue device according to claim 3, characterized in that: The auxiliary frame (2) includes two auxiliary rods (21), two auxiliary rods (22), an auxiliary rod (23), and a vertically arranged support rod (24). The two ends of the auxiliary rod (22) are fixedly connected to one end of the auxiliary rod (21) and one end of the auxiliary rod (23), respectively. The auxiliary rod (21) is parallel to the auxiliary rod (23), and the auxiliary rod (22) is perpendicular to both the auxiliary rod (21) and the auxiliary rod (23). All three auxiliary rods (21, 22, and 23) are hollow. The portion of rod one (61) extending out of the through hole (32) is located within the corresponding auxiliary rod one (21), the two rod two (62) are located within the corresponding auxiliary rod two (22), the two rod three (63) are arranged side by side at intervals within the auxiliary rod three (23), the mounting hole (231) is located in the middle of one side of the auxiliary rod three (23) and communicates with the interior of the auxiliary rod three (23), the telescopic spring (64) and the driving block (65) are both located within the auxiliary rod three (23), and the upper end of the support rod (24) is fixed to one side of the middle part of the auxiliary rod three (23).

5. A grain silo roof rescue device according to claim 4, characterized in that: The drive rod (66) extends out of the mounting hole (231) and has an annular boss (661) on its outer periphery at one end located outside the auxiliary rod (23).

6. A grain silo roof rescue device according to any one of claims 1 to 5, characterized in that: The outer side of the sliding sleeve (4) is provided with a threaded hole (41) that penetrates the inner wall. A fixing bolt (7) is screwed into the threaded hole (41), and the end of the fixing bolt (7) abuts against the outer side of the connecting rod (3).

7. A grain silo roof rescue device according to claim 6, characterized in that: The sliding sleeve (4) is provided with a hanging ring (42), and a hook (43) is installed on the hanging ring (42).

8. A grain silo roof rescue device according to any one of claims 1 to 5, characterized in that: The bracket (1) includes four vertically arranged columns (11) arranged in a rectangular array. A guide rod (12) is fixed between the upper sides of two adjacent columns (11). A crossbar (13) is provided between the upper sides of two other adjacent columns (11). A crossbar (2) (14) is provided near the lower end of the sides of three adjacent columns (11). An inclined reinforcing rod (15) is provided between two adjacent columns (11) and the corresponding crossbar (13). The column (11) is connected to the two crossbars (13), the two guide rods (12), the three crossbars (14), and the two reinforcing rods (15) by angle brackets (16); the column (11) includes a first upright (111) and a second upright (112). The upper end of the first upright (111) is provided with a strip groove (111a) that runs through the lower end. The lower end of the second upright (112) is located in the strip groove (111a) and is fixed to the first upright (111) by a wing bolt (113) and a nut (114).

9. A grain silo roof rescue device according to claim 8, characterized in that: Each of the four columns (11) is provided with a mounting base (18) at its lower end. The mounting base (18) is equipped with a movable wheel (9) and a positioning screw hole (181). A vertically arranged positioning screw (19) is screwed into the positioning screw hole (181). A support (191) is fixed at the lower end of the positioning screw (19).

10. A grain silo roof rescue device according to claim 8, characterized in that: The side of the column (11) is fixed with a horizontal mounting rod (17), and the lower end of each of the four columns (11) is fixed with a base plate (10), the cross-sectional area of ​​the base plate (10) being larger than the cross-sectional area of ​​the column (11).

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