High-stability explosion-proof bridge crane

Abstract

This invention discloses a high-stability explosion-proof bridge crane, relating to the field of crane technology. It includes: a mounting plate with a vertical rod slidably mounted on its top extending to its bottom; perforations are provided inside the mounting plate near both ends; one side of each perforation connects to a limit groove, and the other side connects to a first mounting groove; multiple second mounting grooves are provided on one side of the vertical rod; multiple first alignment mechanisms are fixedly mounted on the other side of the vertical rod; the first alignment mechanisms and their corresponding second mounting grooves are on the same horizontal plane; each first alignment mechanism includes a placement groove, inside which a first spring is fixedly mounted; a connecting piece is fixedly connected to the end of the first spring; and switching mechanisms are provided on both sides of the first alignment mechanisms. This invention solves the problem in the prior art where the height of the vertical rod may need to be adjusted multiple times to align the mounting holes on the vertical rod with the mounting holes on the mounting plate.

Description

Technical Field

[0001] This invention relates to the field of crane technology, specifically a highly stable explosion-proof bridge crane. Background Technology

[0002] Bridge cranes are lifting equipment that spans across workshops, warehouses, and material yards to lift and transport materials. They are the most widely used and numerous type of lifting machinery.

[0003] Chinese utility model patent CN219217310U discloses an explosion-proof electric hoist bridge crane: by setting up an installation plate, a limiting component, and a vertical rod, the distance between the support plate and the installation plate is adjusted by adjusting the height of the vertical rod, thus fixing and limiting the object. Pulling the pull ring moves the pull rod and the moving plate, causing the locking block to move and release its fixation on the vertical rod. Then, the height of the vertical rod is adjusted to a suitable position, and the pull ring is released. Under the tension of the spring, the moving plate and the locking block are reset, thus completing the fixation again and achieving good stability of the object.

[0004] However, existing technology still has shortcomings: adjusting the height of the vertical rod to adjust the distance between the support plate and the mounting plate, and then sequentially inserting the locking blocks into the mounting holes on the mounting plate and the vertical rod to fix the vertical rod to the mounting plate, may require multiple adjustments to the height of the vertical rod to align the mounting holes on the vertical rod with the mounting holes on the mounting plate. Summary of the Invention

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a highly stable explosion-proof bridge crane, which solves the problem in the prior art that may require multiple adjustments to the height of the vertical rod to align the mounting holes on the vertical rod with the mounting holes on the mounting plate.

[0006] To achieve the above objectives, this invention proposes a high-stability explosion-proof bridge crane, comprising: a mounting plate, on which a vertical rod extending to its bottom is slidably mounted; perforations are provided inside the mounting plate near both ends, one side of each perforation connects to a limit groove, and the other side connects to a first mounting groove; multiple second mounting grooves are provided on one side of the vertical rod; and multiple first alignment mechanisms are fixedly mounted on the other side of the vertical rod, with each first alignment mechanism and its corresponding second mounting groove on the same horizontal plane. Each first alignment mechanism includes a placement groove, inside which a first spring is fixedly mounted, and the end of the first spring is fixed... A connecting piece is connected to the first alignment mechanism. Switching mechanisms are provided on both sides of the first alignment mechanism. A second alignment mechanism is fixedly provided on the side of the through hole away from the first mounting groove. The second alignment mechanism includes a limiting groove. The limiting groove and the first mounting groove are on the same horizontal plane. A connecting strip is slidably connected inside the limiting groove. A connecting block is fixedly connected to one end of the connecting strip. The other end of the connecting strip is inclined and a fourth spring is fixedly connected to the inner wall of the limiting groove. A first screw is threadedly connected to the lower end of the mounting plate at the position corresponding to the limiting groove. The top end of the first screw is located inside the limiting groove and a protrusion is fixedly connected to it. The protrusion and the connecting strip cooperate with each other.

[0007] As a further aspect of the present invention: the size of the perforation is adapted to the vertical rod, the vertical rod passes through the perforation, and a support plate is fixedly installed at the bottom of the vertical rod.

[0008] As a further embodiment of the present invention: a frame is fixedly installed above the mounting plate, and columns are fixedly connected to both ends of the frame. A motor is fixedly installed at the upper end of the frame, and a lead screw is fixedly connected to the output shaft of the motor. A fixing block is rotatably connected to the other end of the lead screw. The lower end face of the fixing block is fixedly connected to the frame. A slider is connected to the external thread of the lead screw. A notch is opened on the inner side of the frame, and the size of the notch is adapted to the movement trajectory of the slider.

[0009] As a further embodiment of the present invention: a box body is fixedly connected to the lower end of the slider, a servo motor is fixedly installed on the inner wall of the box body, the output shaft of the servo motor is fixedly connected to a winding rod that is rotatably connected to the inner wall of the box body, a pull rope extending to the bottom of the box body is wound around the outer side of the winding rod, and a connecting rope fixedly connected to the mounting plate is fixedly installed at the bottom of the pull rope.

[0010] As a further aspect of the present invention: both sides of the mounting plate are fixedly installed with limiting components extending into them and engaging with the vertical rod. The limiting components include a frame, which is fixedly connected to both sides of the mounting plate. A movable plate is slidably connected to the inner side of the frame. A locking block is fixedly connected to one side of the movable plate. A third spring is fixedly connected to the other side of the movable plate. The end of the third spring is fixedly connected to the inner wall of the frame. Pull rods are symmetrically fixedly connected to the sides of the movable plate. The pull rods pass through the frame and are fixedly connected to pull rings. Second screws are threadedly connected to the upper and lower sides of the mounting plate near both ends. The ends of the second screws can contact the locking blocks.

[0011] As a further aspect of the present invention: a plurality of second mounting slots are formed on the side of the vertical rod near the first mounting slot, the plurality of second mounting slots are arranged at equal distances in the vertical direction, the second mounting slots are the same size as the first mounting slots, a plurality of first alignment mechanisms are fixedly arranged on the side of the vertical rod away from the second mounting slots, the number of first alignment mechanisms is the same as the number of second mounting slots, and the placement slot and the corresponding second mounting slot are on the same horizontal plane.

[0012] As a further embodiment of the present invention: the switching mechanism includes a stop block, and sliding grooves are provided on both the upper and lower sides of the placement groove, the sliding grooves are connected to the placement groove, the stop block is slidably connected inside the sliding groove, a second spring is fixedly connected to the groove wall of the sliding groove, the other end of the second spring is fixedly connected to the stop block, connecting grooves are provided on both the upper and lower sides of the sliding groove, the connecting grooves are connected to the sliding groove, a connecting post is fixedly connected to the front end face of the stop block, the connecting post passes through the sliding groove and the connecting groove in sequence and extends to the outside of the vertical rod, a fixing plate is fixedly connected to the front end face of the vertical rod at the position corresponding to the connecting groove, a third screw is threadedly connected to the middle of the fixing plate, and the bottom end of the third screw abuts against the upper end face of the connecting post.

[0013] As a further aspect of the present invention: the limiting groove is rectangular, the width of the limiting groove is equal to the length of the connecting piece, the size of the connecting block is smaller than the size of the placement groove, and the side of the protrusion is an inclined surface.

[0014] As a further aspect of the present invention: the upper and lower end faces of the connecting strip are fixedly connected to limit strips, and the limit strips are slidably connected to the limit grooves.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By setting up a second alignment mechanism and a first alignment mechanism, the second alignment mechanism and the first alignment mechanism can work together to reduce the number of times the second mounting slot and the first mounting slot need to be aligned: When it is necessary to select one of the second mounting slots to align with the first mounting slot, assuming that the selected second mounting slot is below the first mounting slot, the placement slot is opened using the switch mechanism. Under the action of the first spring force, the connecting piece is pressed tightly against the inner wall of the perforation. While the vertical rod moves upward, the connecting piece moves upward while pressed tightly against the inner wall of the perforation. When the placement slot and the limiting slot are on the same horizontal plane, under the action of the first spring force, the connecting piece is completely inserted into the limiting slot. The connecting piece stops moving when it touches the end face of the connecting block. At this time, it means that the second mounting slot, the placement slot, the limiting slot, and the first mounting slot are all on the same horizontal plane, thus completing the operation of aligning the second mounting slot with the first mounting slot. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is an enlarged view of part B of the present invention;

[0020] Figure 4 This is an enlarged view of part A of the present invention;

[0021] Figure 5 This is an enlarged view of part C of the present invention;

[0022] Figure 6 This is a side sectional view of the vertical rod of the present invention.

[0023] In the diagram: 1. Column; 2. Motor; 3. Lead screw; 4. Slider; 5. Frame; 51. Notch; 6. Fixing block; 7. Box; 8. Servo motor; 9. Pull rope; 10. Connecting rope; 11. Vertical rod; 111. Placement groove; 112. Slide groove; 113. Second mounting groove; 114. Connecting groove; 12. Support plate; 13. Mounting plate; 131. Perforation; 132. Limiting groove; 133. First mounting groove; 1 4. First screw; 15. Protrusion; 16. Connecting strip; 161. Limiting strip; 162. Fourth spring; 17. Connecting block; 18. Connecting piece; 19. First spring; 20. Second spring; 21. Stop block; 22. Connecting column; 23. Locking block; 24. Moving plate; 25. Frame; 26. Pull rod; 27. Third spring; 28. Pull ring; 29. ​​Second screw; 30. Third screw; 31. Fixing plate. Detailed Implementation

[0024] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1-6 As shown, a high-stability explosion-proof bridge crane includes: a mounting plate 13, a vertical rod 11 extending to its bottom is slidably mounted on the top of the mounting plate 13, and through holes 131 are provided inside the mounting plate 13 near both ends. The size of the through holes 131 is adapted to the vertical rod 11, the vertical rod 11 passes through the through holes 131, and a support plate 12 is fixedly mounted on the bottom of the vertical rod 11.

[0026] A frame 5 is fixedly installed above the mounting plate 13. Columns 1 are fixedly connected to both ends of the frame 5. A motor 2 is fixedly installed at the upper end of the frame 5. A lead screw 3 is fixedly connected to the output shaft of the motor 2. A fixing block 6 is rotatably connected to the other end of the lead screw 3. The lower end face of the fixing block 6 is fixedly connected to the frame 5. A slider 4 is threaded onto the outside of the lead screw 3. A notch 51 is provided on the inner side of the frame 5. The size of the notch 51 is adapted to the movement trajectory of the slider 4.

[0027] The lower end of the slider 4 is fixedly connected to the box body 7. The inner wall of the box body 7 is fixedly provided with a servo motor 8. The output shaft of the servo motor 8 is fixedly connected to a winding rod that is rotatably connected to the inner wall of the box body 7. A pull rope 9 extending to the bottom of the box body 7 is wound around the outside of the winding rod. A connecting rope 10 that is fixedly connected to the mounting plate 13 is fixedly installed at the bottom of the pull rope 9.

[0028] Both sides of the mounting plate 13 are fixedly installed with limiting components that extend into the interior and engage with the vertical rod 11. The limiting components include a frame 25, which is fixedly connected to both sides of the mounting plate 13. A movable plate 24 is slidably connected to the inner side of the frame 25. A locking block 23 is fixedly connected to one side of the movable plate 24. A third spring 27 is fixedly connected to the other side of the movable plate 24. The end of the third spring 27 is fixedly connected to the inner wall of the frame 25. A pull rod 26 is symmetrically fixedly connected to the side of the movable plate 24. The pull rod 26 passes through the frame 25 and is fixedly connected to a pull ring 28. A second screw 29 is threadedly connected to the upper and lower sides of the mounting plate 13 near both ends. The end of the second screw 29 can contact the locking block 23.

[0029] Both ends of the mounting plate 13 have first mounting slots 133, which communicate with the through holes 131. The vertical rod 11 has multiple second mounting slots 113 on its side near the first mounting slots 133. These second mounting slots 113 are equidistant in the vertical direction and are the same size as the first mounting slots 133. Initially, the locking block 23 is inside one of the first mounting slots 133, and the third spring 27 is compressed.

[0030] The distance between the support plate 12 and the mounting plate 13 is adjusted by adjusting the height of the vertical rod 11 to fix and limit the object. The appropriate second mounting groove 113 is aligned with the first mounting groove 133. The second screw 29 is rotated, and the second screw 29 moves away from the locking block 23. Under the elastic force of the third spring 27, the locking block 23 enters the second mounting groove 113, thus fixing the mounting plate 13 and the vertical rod 11. When it is necessary to separate the mounting plate 13 and the vertical rod 11, the pull ring 28 is pulled. The pull ring 28 moves the locking block 23 away from the second mounting groove 113 through the pull rod 26 and the moving plate 24. At this time, the third spring 27 is in a compressed state. The second screw 29 is rotated, and the second screw 29 gradually approaches the locking block 23 and abuts against the end face of the locking block 23, fixing the locking block 23 and preventing the locking block 23 from entering the second mounting groove 113 under the elastic force of the third spring 27.

[0031] When selecting one of the second mounting slots 113 to align with the first mounting slot 133, it may be necessary to adjust the height of the second mounting slot 113 from the ground multiple times to fully align the second mounting slot 113 with the first mounting slot 133. In order to reduce the number of times the second mounting slot 113 and the first mounting slot 133 need to be aligned, multiple first alignment mechanisms are fixedly provided on the side of the vertical rod 11 away from the second mounting slot 113. The number of first alignment mechanisms is the same as the number of second mounting slots 113, and the first alignment mechanism and the corresponding second mounting slot 113 are on the same horizontal plane.

[0032] The first alignment mechanism includes a placement groove 111, which is on the same horizontal plane as the corresponding second mounting groove 113. A first spring 19 is fixedly installed inside the placement groove 111, and a connecting piece 18 is fixedly connected to the end of the first spring 19.

[0033] The first alignment mechanism is provided with a switch mechanism on both sides. The switch mechanisms on both sides cooperate to open or seal the placement groove 111. The switch mechanism includes a stop block 21. The upper and lower sides of the placement groove 111 are provided with sliding grooves 112. The sliding grooves 112 are connected to the placement groove 111. The stop block 21 is slidably connected to the inside of the sliding groove 112. The groove wall of the sliding groove 112 is fixedly connected with a second spring 20. The other end of the second spring 20 is fixedly connected to the stop block 21. The upper and lower sides of the sliding groove 112 are provided with connecting grooves 114. The connecting grooves 114 are connected to the sliding groove 112. The front end face of the stop block 21 is fixedly connected with a connecting post 22. The connecting post 22 passes through the sliding groove 112 and the connecting groove 114 in sequence and extends to the outside of the vertical rod 11. The front end face of the vertical rod 11 and the position corresponding to the connecting groove 114 are fixedly connected with a fixing plate 31. The middle part of the fixing plate 31 is threadedly connected with a third screw 30. The bottom end of the third screw 30 abuts against the upper end face of the connecting post 22.

[0034] The process of closing the placement slot 111 by the switch mechanism: rotate the third screws 30 on both sides of the first alignment mechanism so that the two third screws 30 are close to each other, the second spring 20 is stretched, and the third screws 30 press the corresponding connecting post 22 and the stop block 21 to move towards the placement slot 111 until the stop block 21 enters the interior of the placement slot 111 and closes the opening of the placement slot 111.

[0035] The process of opening the placement slot 111 by the switch mechanism: the third screws 30 on both sides of the first alignment mechanism are rotated in the opposite direction, so that the two third screws 30 are moved away from each other. Under the action of the rebound force of the second spring 20, the corresponding stop block 21 is driven back into the slide groove 112, opening the opening of the placement slot 111.

[0036] A second alignment mechanism is fixedly provided on the side of the perforation 131 away from the first mounting groove 133. The second alignment mechanism includes a limiting groove 132, which is on the same horizontal plane as the first mounting groove 133. The limiting groove 132 communicates with the perforation 131 and is rectangular. The width of the limiting groove 132 is equal to the length of the connecting piece 18, so that both the upper and lower end faces of the connecting piece 18 contact the groove wall of the limiting groove 132. A connecting strip 16 is slidably connected inside the limiting groove 132. One end of the 6 is fixedly connected to a connecting block 17, and the other end of the connecting strip 16 is inclined and fixedly connected to the inner wall of the limiting groove 132 with a fourth spring 162. The size of the connecting block 17 is smaller than the size of the placement groove 111. The lower end of the mounting plate 13 is threadedly connected to a first screw 14 corresponding to the position of the limiting groove 132. The top end of the first screw 14 is located inside the limiting groove 132 and is fixedly connected to a protrusion 15. The side of the protrusion 15 is an inclined surface, and the protrusion 15 cooperates with the connecting strip 16.

[0037] Limiting strips 161 are fixedly connected to both the upper and lower ends of the connecting strip 16, and the limiting strips 161 are slidably connected to the limiting grooves 132.

[0038] The second alignment mechanism works in conjunction with the first alignment mechanism to reduce the number of times the second mounting slot 113 and the first mounting slot 133 need to be aligned. When it is necessary to select one of the second mounting slots 113 to align with the first mounting slot 133, assuming that the selected second mounting slot 113 is below the first mounting slot 133, the placement slot 111 is opened using the switch mechanism. Under the action of the first spring 19, the connecting piece 18 is pressed tightly against the inner wall of the through hole 131. While the vertical rod 11 moves upward, the connecting piece 18 moves upward while pressed tightly against the inner wall of the through hole 131. When the placement slot 111 and the limiting slot 132 are on the same horizontal plane, the connecting piece 18 is fully inserted into the limiting slot 132 under the action of the first spring 19. The connecting piece 18 stops moving when it touches the end face of the connecting block 17. At this time, it is known that the second mounting slot 113, the placement slot 111, the limiting slot 132, and the first mounting slot 133 are all on the same horizontal plane, thus completing the operation of aligning the second mounting slot 113 with the first mounting slot 133.

[0039] When it is necessary to select another second mounting slot 113 to align with the first mounting slot 133: rotate the first screw 14, the first screw 14 drives the protrusion 15 to move upward, the protrusion 15 squeezes the connecting strip 16, so that the connecting strip 16 and the connecting block 17 move to the right as a whole, pushing the connecting piece 18 into the placement slot 111. Because the size of the connecting block 17 is smaller than the size of the placement slot 111, the upper and lower end faces of the connecting block 17 do not contact the slot wall of the placement slot 111. Then use the switch mechanism to close the placement slot 111. When the stop block 21 contacts the end face of the connecting block 17, stop rotating the third screw 30, rotate the first screw 14 in the opposite direction, the first screw 14 drives the protrusion 15 to move downward, and under the action of the rebound force of the fourth spring 162, drive the connecting strip 16 and the connecting block 17 to enter the limiting slot 132 as a whole. Then separate the locking block 23 from the second mounting slot 113.

[0040] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A high-stability explosion-proof bridge crane, characterized in that, include: A mounting plate (13) is provided, with a vertical rod (11) extending to its bottom slidably mounted on its top. Through holes (131) are provided inside the mounting plate (13) near both ends. One side of each through hole (131) connects to a limiting groove (132), and the other side connects to a first mounting groove (133). Multiple second mounting grooves (113) are provided on one side of the vertical rod (11), and multiple first alignment mechanisms are fixedly installed on the other side of the vertical rod (11). Each first alignment mechanism is on the same horizontal plane as its corresponding second mounting groove (113). Each first alignment mechanism includes a placement groove (111), with a first spring (19) fixedly installed inside the placement groove (111). A connecting piece (18) is fixedly connected to the end of the first spring (19). Both sides of the first alignment mechanism are provided with... The switching mechanism has a second alignment mechanism fixedly installed on the side of the perforation (131) away from the first mounting groove (133). The second alignment mechanism includes a limiting groove (132). The limiting groove (132) and the first mounting groove (133) are on the same horizontal plane. A connecting strip (16) is slidably connected inside the limiting groove (132). A connecting block (17) is fixedly connected to one end of the connecting strip (16). The other end face of the connecting strip (16) is inclined and a fourth spring (162) is fixedly connected to the inner wall of the limiting groove (132). A first screw (14) is threadedly connected to the lower end of the mounting plate (13) and the position corresponding to the limiting groove (132). The top end of the first screw (14) is located inside the limiting groove (132) and a protrusion (15) is fixedly connected to it. The protrusion (15) and the connecting strip (16) cooperate with each other.

2. A high-stability explosion-proof bridge crane according to claim 1, characterized in that, The size of the perforation (131) is adapted to the vertical rod (11), the vertical rod (11) passes through the perforation (131), and a support plate (12) is fixedly installed at the bottom of the vertical rod (11).

3. A high-stability explosion-proof bridge crane according to claim 1, characterized in that, A frame (5) is fixedly installed above the mounting plate (13). Columns (1) are fixedly connected to both ends of the frame (5). A motor (2) is fixedly installed at the upper end of the frame (5). A lead screw (3) is fixedly connected to the output shaft of the motor (2). A fixing block (6) is rotatably connected to the other end of the lead screw (3). The lower end face of the fixing block (6) is fixedly connected to the frame (5). A slider (4) is connected to the external thread of the lead screw (3). A notch (51) is opened on the inner side of the frame (5). The size of the notch (51) is adapted to the movement trajectory of the slider (4).

4. A high-stability explosion-proof bridge crane according to claim 3, characterized in that, The lower end of the slider (4) is fixedly connected to the box body (7). The inner wall of the box body (7) is fixedly provided with a servo motor (8). The output shaft of the servo motor (8) is fixedly connected to a winding rod that is rotatably connected to the inner wall of the box body (7). A pull rope (9) extending to the bottom of the box body (7) is wound around the outside of the winding rod. A connecting rope (10) fixedly connected to the mounting plate (13) is fixedly installed at the bottom of the pull rope (9).

5. A high-stability explosion-proof bridge crane according to claim 1, characterized in that, Both sides of the mounting plate (13) are fixedly installed with limiting components that extend into the interior and engage with the vertical rod (11). The limiting components include a frame (25), which is fixedly connected to both sides of the mounting plate (13). A movable plate (24) is slidably connected to the inner side of the frame (25). A locking block (23) is fixedly connected to one side of the movable plate (24). A third spring (27) is fixedly connected to the other side of the movable plate (24). The end of the third spring (27) is fixedly connected to the inner wall of the frame (25). A pull rod (26) is symmetrically fixedly connected to the side of the movable plate (24). The pull rod (26) passes through the frame (25) and is fixedly connected to a pull ring (28). A second screw (29) is threadedly connected to the upper and lower sides of the mounting plate (13) near both ends. The end of the second screw (29) can contact the locking block (23).

6. A high-stability explosion-proof bridge crane according to claim 1, characterized in that, Multiple second mounting slots (113) are opened on the side of the vertical rod (11) near the first mounting slot (133). The multiple second mounting slots (113) are arranged at equal distances in the vertical direction. The second mounting slots (113) are the same size as the first mounting slots (133). Multiple first alignment mechanisms are fixedly arranged on the side of the vertical rod (11) away from the second mounting slots (113). The number of first alignment mechanisms is the same as the number of second mounting slots (113). The placement slot (111) and the corresponding second mounting slot (113) are on the same horizontal plane.

7. A high-stability explosion-proof bridge crane according to claim 1, characterized in that, The switching mechanism includes a stop (21), and sliding grooves (112) are provided on both the upper and lower sides of the placement groove (111). The sliding grooves (112) are connected to the placement groove (111). The stop (21) is slidably connected inside the sliding groove (112). A second spring (20) is fixedly connected to the groove wall of the sliding groove (112). The other end of the second spring (20) is fixedly connected to the stop (21). Connecting grooves (114) are provided on both the upper and lower sides of the sliding groove (112). The connecting grooves (114) are connected to the sliding groove (21). The groove (112) is connected, and the front end face of the stop block (21) is fixedly connected to the connecting column (22). The connecting column (22) passes through the sliding groove (112) and the connecting groove (114) in sequence and extends to the outside of the vertical rod (11). The front end face of the vertical rod (11) and the position corresponding to the connecting groove (114) are fixedly connected to the fixing plate (31). The middle part of the fixing plate (31) is threaded with the third screw (30). The bottom end of the third screw (30) abuts against the upper end face of the connecting column (22).

8. A high-stability explosion-proof bridge crane according to claim 1, characterized in that, The limiting groove (132) is rectangular, and the width of the limiting groove (132) is equal to the length of the connecting piece (18). The size of the connecting block (17) is smaller than the size of the placement groove (111), and the side of the protrusion (15) is an inclined surface.

9. A high-stability explosion-proof bridge crane according to claim 1, characterized in that, Limiting strips (161) are fixedly connected to both the upper and lower ends of the connecting strip (16), and the limiting strips (161) are slidably connected to the limiting grooves (132).

Images