A hanging basket for bridge construction

Abstract

The present invention belongs to the technical field of hoisting equipment, and in particular relates to a hanging basket for bridge construction, comprising a hanging frame, a slide and a frame, wherein a transmission shaft, a reciprocating screw and a fixed shaft are sequentially arranged on the frame, wherein the transmission shaft is connected to the reciprocating screw by an overrunning clutch for transmission; the reciprocating screw is connected to a screw slider fixedly connected to the slide; a hollow shaft is rotatably arranged on the upper end of the slide, and the hollow shaft and the transmission shaft are slidably connected; a hollow tube is provided at the lower end of the slide, and the hollow tube and the fixed shaft are slidably connected, and the hollow tube and the hollow shaft are connected for transmission by a chain assembly; the hanging frame is slidably arranged on the inner wall of the slide, the chain assembly is partially arranged in a positioning groove of the hanging frame, and a locking mechanism for connecting or disconnecting with the chain assembly is provided on the hanging frame. The present invention can accurately control the hanging basket to perform horizontal reciprocating lateral movement and adjust the height position, so that the construction range is wider, the construction efficiency is higher, and the structural design of the hanging basket is further simplified.

Description

Technical Field

[0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to a hanging basket for bridge construction. Background Art

[0002] A bridge generally refers to a structure erected across rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. To adapt to the modern, rapidly developing transportation industry, bridges have also been extended to buildings that are erected to cross mountain streams, poor geology, or to meet other transportation needs, making travel more convenient. A bridge generally consists of a superstructure, a substructure, supports, and ancillary structures. The superstructure, also known as the span structure, is the main structure for crossing obstacles; the substructure includes abutments, piers, and foundations; supports are force-transmitting devices installed at the supporting locations between the span structure and the piers or abutments; and ancillary structures include bridgehead slabs, conical slope protection, revetments, diversion projects, etc.

[0003] The invention patent with the patent publication number CN111893888B discloses a mobile hanging basket for bridge construction, including: a hanging basket; a guide assembly, installed on the hanging basket; a power assembly, installed on the guide assembly; and a drive assembly, installed on the guide assembly. The present invention uses the power assembly to drive the drive assembly to work, and then the drive assembly drives the hanging basket to move laterally along the guide assembly. By controlling the motor reversal, the hanging basket can move longitudinally. In this way, the hanging basket can be accurately controlled to move horizontally during bridge construction, making the construction process more accurate and the construction efficiency higher. In addition, in addition to being hung with a suspension rope, the mobile hanging basket can also clamp one side of the bridge, making the construction process safer. However, the device only takes into account longitudinal and lateral movement, and does not take into account lifting and lowering movements within a certain range, which makes it more troublesome when lifting and lowering work is required. Summary of the Invention

[0004] In order to overcome the problem that the hanging basket used in the current bridge construction cannot be lifted and lowered and moved left and right to adjust the position under certain appropriate circumstances, the present invention provides a hanging basket for bridge construction that can be moved left and right and lifted and lowered to adjust the height.

[0005] To achieve the above objectives, the technical solution provided by the present invention is:

[0006] A hanging basket for bridge construction comprises a hanging frame, an L-shaped slide and a frame, wherein the upper end of the frame is provided with a clamping assembly for connecting and fixing with the bridge; a transmission shaft, a reciprocating screw and a fixed shaft are sequentially provided on the frame, and the transmission shaft is connected to the reduction motor for transmission; the transmission shaft is connected to the pulley through an overrunning clutch, one end of the reciprocating screw is connected to another pulley, and the two pulleys are connected for transmission through a belt; the reciprocating screw is connected to a screw slider, and the screw slider is connected to the slide; a hollow shaft is rotatably provided on the upper end of the slide, and the hollow shaft The shaft is slidably connected to the transmission shaft and rotates synchronously with the transmission shaft; a hollow tube is provided at the lower end of the slide, and the hollow tube is slidably connected to the fixed shaft; sprockets are provided on the outer walls of the hollow tube and the hollow shaft, and the two sprockets are connected and transmitted through a chain assembly; the hanging frame can be slidably set in the guide groove of the slide, and one side of the hanging frame is a mounting plate, which is provided with a through positioning groove, and the chain assembly is partially provided in the positioning groove, and a locking mechanism is provided on the hanging frame, which is used to connect and fix or release the connection and fixation with the chain assembly in the positioning groove.

[0007] Optionally, the locking mechanism includes a gear box fixed to the inner wall of the mounting plate, wherein a plurality of gears meshing with each other are rotatably arranged in the gear box, a connecting rod is rotatably arranged on the gear, and the other end of the connecting rod is hinged with a clamping shaft; a plurality of guide holes corresponding to the clamping shaft are provided on the mounting plate, and the clamping shaft is slidably arranged close to the guide holes, and the clamping shaft is used to extend into the positioning groove and be clamped into the corresponding link notch of the chain assembly.

[0008] Optionally, a plurality of positioning grooves corresponding one-to-one to the guide holes are provided on the other side of the positioning groove.

[0009] Optionally, the upper and lower ends of the gear box are respectively provided with adjustment mechanisms for adjusting the tightness of the chain assembly in the positioning groove, the adjustment mechanism includes a cylinder, a return spring, a guide rod, a support rod and a clamping joint, the inner wall of the cylinder is provided with a return spring, the guide rod is slidingly arranged close to the inner wall of the cylinder, and the bottom end of the guide rod is connected to the return spring, the other end of the guide rod is slidably provided with a support rod, one end of the support rod is connected to the clamping joint, and the clamping joint can be clamped into the chain link notch of the chain assembly; the elasticity of the two return springs in the two adjustment mechanisms is different.

[0010] Optionally, a guide block is provided at the bottom end of the inner wall of the gear box, and a locking tooth block is slidably provided on the guide block, and the locking tooth block is meshed and connected with one of the gears.

[0011] Optionally, an adjusting screw is rotatably provided on one side of the locking gear, and the adjusting screw is threadedly connected to the gear box.

[0012] Optionally, a handle is connected to the rotating shaft of one of the gears, and a scale for indicating the rotation angle of the handle is provided on the outer wall of the gear box.

[0013] Optionally, a base frame for supporting a hanging frame is provided at the bottom end of the slide.

[0014] Optionally, guide cylinders are provided on both sides of the slide, the guide cylinders are slidably connected to the reciprocating screw, the two guide cylinders are connected by a fixed frame, and a screw slider is fixed at the center of the fixed frame.

[0015] The present invention has the following advantages and beneficial effects:

[0016] The present invention drives the transmission shaft to rotate by the forward rotation of the reduction motor, drives the pulley to rotate by the overrunning clutch, and then drives the reciprocating screw to rotate by the belt transmission, thereby driving the screw slider to move back and forth, and finally realizing the synchronous reciprocating lateral movement of the slide and the hanging frame. When the reduction motor rotates forward, the chain assembly idles and is not connected to the hanging frame; when the lateral position of the hanging frame and the slide is adjusted, the reduction motor reverses, the overrunning clutch releases the connection transmission with the transmission shaft, and the reciprocating screw does not rotate at this time. Then, the chain assembly and the hanging frame are connected and fixed by a locking mechanism, and the reduction motor is continued to be controlled to reverse, driving the chain assembly to rise and drive the hanging frame to rise and adjust the height position. In this way, the hanging basket can be accurately controlled to move back and forth horizontally and adjust the height position during bridge construction, making the construction range wider and the construction efficiency higher. Only the same motor is needed to adjust the lateral position and the lifting position of the hanging frame, further simplifying the structural design of the hanging basket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A first three-dimensional structural diagram of a hanging basket for bridge construction provided by the present invention;

[0018] Figure 2 A second three-dimensional structural diagram of a hanging basket for bridge construction provided by the present invention;

[0019] Figure 3 for Figure 1 A local enlarged view of point a in the middle;

[0020] Figure 4 for Figure 2 A partial enlarged view of point b in the middle;

[0021] Figure 5 A first isometric half-section structural diagram of a hanging basket for bridge construction provided by the present invention;

[0022] Figure 6 A second isometric half-section structural diagram of a hanging basket for bridge construction provided by the present invention;

[0023] Figure 7 for Figure 5 A partial enlarged view of point c in the middle;

[0024] Figure 8 for Figure 6 The local enlarged view of point d in the middle;

[0025] Figure 9 A partial half-section view of a hanging basket for bridge construction provided by the present invention;

[0026] Figure 10 for Figure 9 Schematic diagram of the connection and fixation of the locking mechanism and the chain assembly;

[0027] Icon: 1-frame, 11-top cover, 12-fixed plate, 121-tightening screw, 13-clamping block, 2-reduction motor, 21-drive shaft, 22-reciprocating screw, 221-thread groove, 23-fixed shaft, 24-first pulley, 25-second pulley, 26-belt, 3-slide, 31-bearing seat, 32-hollow shaft, 33-first guide cylinder, 34-fixed frame, 35-second guide cylinder, 36-hollow tube, 37-base, 38-guide groove, 4-hanging frame, 41-mounting plate, 411- Positioning groove, 412-guide hole, 413-positioning hole, 5-chain assembly, 5a-pin shaft, 5b-chain plate, 5c-clamping notch, 51-first sprocket, 52-second sprocket, 6-overrunning clutch, 7-screw slider, 8-gear box, 81-gear, 811-handle, 82-connecting rod, 83-clamping shaft, 84-guide block, 85-locking tooth block, 851-adjusting screw, 9-adjusting mechanism, 91-cylinder, 92-return spring, 93-guide rod, 94-support rod, 95-clamping joint. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] Example

[0031] like Figure 1 、 Figure 2 As shown, a hanging basket for bridge construction includes a hanging frame 4, a slide 3 and a frame 1.

[0032] Among them, the frame 1 is set to be U-shaped, and the slide 3 is set to be L-shaped. A clamping assembly for connecting and fixing to the bridge is provided at the upper end of the frame 1. The clamping assembly includes a top cover 11, a fixing plate 12 and a clamping block 13. The top end of the frame 1 is integrally connected with the top cover 11, and a fixing plate 12 is provided on one side of the top cover 11, and a plurality of clamping blocks 13 are slidably provided on the inner wall of the top cover 11 relative to the fixing plate 12. A plurality of tightening screws 121 are threadedly connected to the fixing plate 12, and the ends of the tightening screws 121 can be rotatably set on the clamping blocks 13. When the bridge is being constructed, the top cover 11 is pressed against the bridge, and then the clamping block 13 is driven forward by rotating the tightening screws 121 to clamp the bridge in cooperation with the frame 1. When the bridge construction is completed, the tightening screws 121 can be loosened.

[0033] like Figure 1 、 Figure 2 As shown, a transmission shaft 21, a reciprocating screw rod 22 and a fixed shaft 23 are sequentially arranged on the frame 1. Among them, the transmission shaft 21 and the reciprocating screw rod 22 are rotatably arranged on the frame 1, while the fixed shaft 23 is fixed on the frame 1.

[0034] like Figure 1 、 Figure 2 As shown, a reduction motor 2 is fixed to one side of the frame 1, and a transmission shaft 21 is connected to the reduction motor 2 for transmission. The other end of the transmission shaft 21 is connected to the first pulley 24 for transmission via an overrunning clutch 6. One end of the reciprocating screw 22 is connected to the second pulley 25, and the first pulley 24 and the second pulley 25 are connected for transmission via a belt 26. Here, the overrunning clutch 6 serves to connect and disconnect the transmission shaft 21 and the first pulley 24 for transmission. For example, when the transmission shaft 21 rotates forward, the transmission shaft 21 drives the first pulley 24 to rotate via the overrunning clutch 6. Conversely, when the transmission shaft 21 rotates reversely, the transmission shaft 21 cannot drive the first pulley 24 to rotate via the overrunning clutch 6.

[0035] like Figure 1 、 Figure 2 As shown, a bearing seat 31 is provided on each side of the upper end of the carriage 3. A hollow shaft 32 is rotatably mounted within the bearing seat 31. The hollow shaft 32 is slidably connected to the transmission shaft 21 and rotates synchronously with the transmission shaft 21. Specifically, the inner wall of the hollow shaft 32 may be provided with a groove similar to a keyway, and the outer wall of the transmission shaft 21 may be provided with a protrusion that slidably engages with the groove. This snap-fit structure allows the hollow shaft 32 to slide on the outer wall of the transmission shaft 21, while simultaneously limiting the relative circumferential position of the hollow shaft 32 and the transmission shaft 21, allowing only synchronous rotation.

[0036] like Figure 1 、 Figure 2As shown, a second guide cylinder 35 is provided on each side of the lower end of the slide 3. A hollow tube 36 is connected between the two second guide cylinders 35. The hollow tube 36 is slidably connected to the fixed shaft 23 (i.e., the inner wall of the hollow tube 36 slides against the outer wall of the fixed shaft 23). In this way, the entire slide 3 can slide horizontally.

[0037] The reciprocating screw 22 is a screw that enables the slider 7 to reciprocate without changing the direction of rotation of the reduction motor 2. Reciprocating screw 22 is a form of cam pair, consisting of two threaded grooves 221 with the same pitch and opposite rotation directions, connected at both ends by a transition curve. The rotation of reciprocating screw 22 causes the sides of the spiral grooves to push the slider, located within the grooves 221, into axial reciprocating motion.

[0038] like Figure 1-3 As shown, in the present invention, the reciprocating screw 22 is provided with two threaded grooves 221 with the same pitch and opposite rotation directions, connected at both ends by a transition curve. A screw slider 7 is connected within the spiral grooves. A first guide cylinder 33 is provided on either side of the middle portion of the slide 3. The inner wall of the first guide cylinder 33 slides against the outer wall of the reciprocating screw 22. The two first guide cylinders 33 are connected by a fixed bracket 34, the center of which is fixedly connected to the screw slider 7. Thus, when the reciprocating screw 22 rotates, the screw slider 7 moves back and forth laterally, thereby driving the slide 3 and the hanging frame 4 on the slide 3 to reciprocate horizontally.

[0039] like Figure 1-2 , Figure 4-6 As shown, in the present invention, a second sprocket 52 is rotatably provided on the outer wall of the hollow tube 36 , a first sprocket 51 is fixed to the outer wall of the hollow shaft 32 , and the first sprocket 51 and the second sprocket 52 are connected and driven by a chain assembly 5 .

[0040] like Figure 1-4 As shown, the side of the hanging frame 4 near the chain assembly 5 is provided with a mounting plate 41, and the upper and lower ends of the mounting plate 41 are provided with through positioning grooves 411; guide grooves 38 are provided on both sides of the slide 3, and the two sides of the mounting plate 41 are slidably disposed in the guide grooves 38. The chain assembly 5 is partially disposed in the positioning groove 411, and a locking mechanism is provided on the mounting plate 41. The locking mechanism is used to connect and disconnect the chain assembly 5 in the positioning groove 411. When the locking mechanism and the chain assembly 5 are fixed together, the chain assembly 5 rotates, which drives the hanging frame 4 to move up and down; when the locking mechanism and the chain assembly 5 are released, the chain assembly 5 idles in the positioning groove 411 and does not drive the hanging frame 4 to move up and down.

[0041] The bottom end of the slide 3 is provided with a base frame 37 for supporting the hanging frame 4 . When the chain assembly 5 is not connected and fixed with the locking mechanism, the hanging frame 4 is placed on the base frame 37 .

[0042] like Figure 9 As shown, the chain assembly 5 is composed of a plurality of chain links, each of which includes a chain plate 5b and a pin 5a. A clamping gap 5c is formed between the two pins 5a and the two chain plates 5b.

[0043] like Figure 5-10 As shown, further, the locking mechanism includes a gear box 8 fixed to the inner wall of the mounting plate 41, and a plurality of gears 81 that are rotatably arranged in the gear box 8 and are meshed with each other are arranged in the vertical direction, that is, on the same vertical axis as the positioning groove 411. A connecting rod 82 is rotatably arranged on each gear 81, and the other end of the connecting rod 82 is hinged with a clamping shaft 83. The mounting plate 41 is provided with a plurality of guide holes 412 corresponding to the clamping shaft 83. One end of the guide hole 412 is connected to the positioning groove 411, and the other end is connected to the gear box 8. The clamping shaft 83 always slides and limits in the guide hole 412 and does not disengage from the guide hole 412. The gear 81, the connecting rod 82 and the clamping shaft 83 form a crank slider structure. When the clamping shaft 83 and the connecting rod 82 are on the same horizontal line and the connection point of the connecting rod 82 and the gear 81 is farthest from the guide hole 412 (such as Figure 8 、 Figure 9 As shown in FIG4 , the clamping shaft 83 is just in the guide hole 412 and does not extend into the positioning groove 411. In this state, the chain assembly 5 in the positioning groove 411 can move freely up and down. When the clamping shaft 83 and the connecting rod 82 are on the same horizontal line and the connection point between the connecting rod 82 and the gear 81 is closest to the guide hole 412 (as shown in FIG4 ), the clamping shaft 83 is just in the guide hole 412 and does not extend into the positioning groove 411. In this state, the chain assembly 5 in the positioning groove 411 can move freely up and down. Figure 10 As shown, the engaging shaft 83 now extends from the guide hole 412 into the positioning groove 411 and engages with the clamping notch 5c of the corresponding link of the chain assembly 5. In this state, the chain assembly 5 and the engaging shaft 83 are engaged and fixed in the positioning groove 411, and the chain assembly 5 can drive the hanging frame 4 to move up and down.

[0044] Furthermore, a plurality of positioning holes 413 are provided on the inner wall of the other side of the positioning groove 411, which correspond to the guide holes 412 one by one. When the clamping shaft 83 is extended to the farthest position, the end of the clamping shaft 83 can be clamped into the positioning hole 413 (such as Figure 9 、 Figure 10 As shown), the connection strength between the clamping shaft 83, the mounting plate 41 and the chain assembly 5 can be ensured.

[0045] like Figure 7 、 Figure 8As shown, a guide block 84 is provided at the bottom end of the inner wall of the gearbox 8. A locking tooth block 85 is slidably mounted on the guide block 84. The locking tooth block 85 has a groove that mates with the rack of the gear 81. The locking tooth block 85 meshes with one of the gears 81. When the gear 81 is rotated a certain angle so that the coupling shaft 83 engages the clamping notch 5c of the chain assembly 5, the locking tooth block 85 can be slid so that the locking tooth block 85 mates with the lowermost gear 81, locking the gear 81 and preventing it from rotating, thereby ensuring the connection stability of the coupling shaft 83.

[0046] like Figure 4 As shown, further, an adjusting screw 851 is rotatably provided on one side of the locking gear 81, and the adjusting screw 851 is threadedly connected to the gear box 8. The sliding of the locking tooth block 85 can be controlled by the adjusting screw 851 to achieve locking and unlocking of the gear 81.

[0047] like Figure 4 As shown, a handle 811 is connected to the rotating shaft of one of the gears 81, and a scale is provided on the outer wall of the gear box 8 to indicate the rotation angle of the handle 811. In this way, the handle 811 can be rotated to control the rotation of the gear 81. Because the gear 81, connecting rod 82, and clamping shaft 83 are designed as a crank slider structure, only 180° rotation is required to achieve full locking. After exceeding 180°, the locking state will gradually be released. Therefore, it is only necessary to design a corresponding scale to assist in the manual locking operation, so that the gear 81 can be rotated to the appropriate locking position.

[0048] Principle and steps of adjusting hanging frame 4:

[0049] First, the lateral position needs to be adjusted. The reduction motor 2 rotates forward, driving the transmission shaft 21 to rotate. The transmission shaft 21 drives the hollow shaft 32 to rotate, which in turn drives the first sprocket 51 to rotate, and finally drives the chain assembly 5 to rotate. Since the chain assembly 5 and the hanging frame 4 are not fixed by the locking mechanism at this time, the chain assembly 5 rotates idly, and the hanging frame 4 is placed on the base frame 37.

[0050] When the reduction motor 2 rotates forward and drives the transmission shaft 21, the transmission shaft 21 drives the first pulley 24 to rotate through the overrunning clutch 6. The first pulley 24 drives the second pulley 25 to rotate through the belt 26. The second pulley 25 drives the reciprocating screw 22 to rotate. When the reciprocating screw 22 rotates, it drives the screw slider 7 to slide back and forth. In turn, the screw slider 7 drives the carriage 3 and the hanging frame 4 on the carriage 3 to make reciprocating transverse motion. In this way, the lateral position can be adjusted.

[0051] When the lateral position of the slide 3 and the hanging frame 4 on the slide 3 is adjusted, the reduction motor 2 is controlled to reverse. When the reduction motor 2 reverses to drive the transmission shaft 21 to rotate, the transmission shaft 21 cannot drive the first pulley 24 to rotate through the overrunning clutch 6, and will not drive the reciprocating screw rod 22 to rotate, thereby driving the slide 3 and the hanging frame 4 on the slide 3 to perform reciprocating lateral movement to ensure that the lateral position of the hanging frame 4 does not change after the adjustment is completed.

[0052] When the reduction motor 2 reverses and drives the transmission shaft 21 to rotate, the transmission shaft 21 drives the hollow shaft 32 to rotate, and then drives the first sprocket 51 to rotate, and finally drives the chain assembly 5 to rotate, thereby adjusting the position of the chain assembly 5 in the positioning groove 411 so that the clamping notch 5c of the chain assembly 5 and the clamping shaft 83 are aligned. Then, the gear 81 is rotated to clamp the clamping shaft 83 into the clamping notch 5c, thus completing the clamping connection between the chain assembly 5 and the clamping shaft 83. After the chain assembly 5 and the hanging frame 4 are fixed by the locking mechanism, the reduction motor 2 continues to reverse, controlling the chain assembly 5 to rotate, driving the hanging frame 4 to move up from the base frame 37, thereby achieving height adjustment. Therefore, it should be considered here that when the reduction motor 2 reverses, the movement direction of the chain assembly 5, and the direction of the chain assembly 5 in the positioning groove 411 is upward movement.

[0053] When the construction is completed, the reduction motor 2 rotates forward, which drives the slide 3 and the hanging frame 4 to move back and forth horizontally. At the same time, it drives the hanging frame 4 to move downward until the hanging frame 4 is placed on the base frame 37. Then, the connection between the clamping shaft 83 and the chain assembly 5 can be released. Each time the horizontal position is adjusted, the hanging frame 4 needs to be placed on the base frame 37 first, and then the clamping shaft 83 and the chain assembly 5 are released. The chain assembly 5 is kept idle before the horizontal position can be adjusted.

[0054] The connection between the chain assembly 5 and the clamping shaft 83 is not always smooth. Due to the looseness of the chain assembly 5, that is, the chain assembly 5 is not in a completely taut state, the clamping shaft 83 and the clamping notch 5c of the corresponding chain link will not correspond. In other words, when a certain clamping shaft 83 is aligned with the clamping notch 5c of a certain chain link, other clamping shafts 83 will often not correspond with the clamping notch 5c of another chain link. In this case, the clamping shaft 83 cannot extend into the clamping notch 5c, resulting in the chain assembly 5 and the clamping shaft 83 being unable to achieve fast and accurate clamping. Therefore, it is often necessary to manually tighten the chain assembly 5 to position it, which is less than ideal.

[0055] In order to solve the above problems, the present invention has further optimized the design. Figure 7-10As shown, the upper and lower ends of the gear box 8 are respectively provided with adjustment mechanisms 9 for adjusting the tightness of the chain assembly 5 in the positioning groove 411. The adjustment mechanism 9 only needs to adjust the tightness of the chain assembly 5 in the positioning groove 411, and does not adjust the tightness of the entire chain assembly 5.

[0056] The adjusting mechanism 9 includes a cylinder 91, a return spring 92, a guide rod 93, a support rod 94 and a clamping joint 95. The return spring 92 is provided on the inner wall of the cylinder 91, the guide rod 93 is slidingly arranged close to the inner wall of the cylinder 91, and the bottom end of the guide rod 93 is connected to the return spring 92. The other end of the guide rod 93 is provided with a through hole, and a support rod 94 is slidably provided in the through hole. One end of the support rod 94 is connected to the clamping joint 95, and the clamping joint 95 can be clamped into the clamping notch 5c of the chain link of the chain assembly 5; the elasticity of the two return springs 92 in the two adjusting mechanisms 9 is different.

[0057] In the present invention, the use of the adjustment mechanism 9 requires the chain assembly 5 to rotate counterclockwise (that is, the chain assembly 5 in the positioning groove 411 moves upward, or as shown in FIG. Figure 9 The arrows shown indicate the direction of movement). Figure 9 As shown, the guide rod 93 of the upper adjustment mechanism 9 has sufficient margin to move upward and stretch the return spring 92; while the guide rod 93 of the lower adjustment mechanism 9 needs to ensure that there is sufficient margin to move upward and compress the return spring 92. In addition, the elasticity of the return spring 92 of the upper adjustment mechanism 9 is less than that of the return spring 92 of the lower adjustment mechanism 9, that is, the return spring 92 of the upper adjustment mechanism 9 is more easily stretched, while the return spring 92 of the lower adjustment mechanism 9 is less easily compressed.

[0058] Steps and principles for adjusting the tightness of the chain assembly 5 by the adjusting mechanism 9:

[0059] like Figure 9 As shown, first, the hanging frame 4 needs to be placed on the base frame 37 rather than suspended in the air (the base frame 37 is not drawn in the figure), and the clamping shaft 83 is in the positioning hole. At this time, the chain assembly 5 can rise and fall freely in the positioning groove 411 without affecting the hanging frame 4.

[0060] exist Figure 9 In this state, first adjust the adjustment mechanism 9 at the upper end of the gear box 8, and push the support rod 94 so that the clamping joint 95 is clamped into the clamping notch 5c of the corresponding chain link (Note: Since the guide rod 93 can be elastically compressed and stretched, even if the clamping notch 5c and the clamping joint 95 are not aligned, the guide rod 93 can be compressed or stretched conveniently and effortlessly to make the clamping joint 95 clamped into the clamping notch 5c). Similarly, adjust the adjustment mechanism 9 at the lower end of the gear box 8, and push the support rod 94 so that the clamping joint 95 is also clamped into the clamping notch 5c of the corresponding chain link, as shown in FIG. Figure 10 shown.

[0061] exist Figure 10 In this state, the chain assembly 5 is controlled to rotate and rise in the positioning groove 411. As the chain assembly 5 rises, the return spring 92 of the lower adjusting mechanism 9 is compressed, while the return spring 92 of the upper adjusting mechanism 9 is stretched. Since the return spring 92 of the upper adjusting mechanism 9 is less elastic than that of the lower adjusting mechanism 9, the upper adjusting mechanism 9 is more easily stretched, while the lower adjusting mechanism 9 is less easily compressed. This causes the upper chain assembly 5 in the positioning groove 411 to have a greater upward displacement, thereby stretching and tightening the chain assembly 5 in the positioning groove 411 until it reaches the appropriate position (i.e., the clamping shaft 83 and the clamping notch 5c are aligned). This design tightens the chain assembly 5 so that each clamping notch 5c is aligned with the clamping shaft 83, thereby accurately achieving the clamping connection between the clamping shaft 83 and the chain assembly 5.

[0062] Then rotate the gear 81 to control the clamping shaft 83 to clamp into the clamping notch 5c of the chain assembly 8 (as shown in FIG. Figure 10 As shown), after the card shaft 83 and the chain assembly 5 are connected and fixed, the card joints 95 of the two adjustment mechanisms 9 are pulled out to release the fixation of the card joints 95 and the chain assembly 5, and then the chain assembly 5 can be controlled to rotate and rise to drive the hanging frame 4 to rise together.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hanging basket for bridge construction, characterized in that : It includes a hanging frame, an L-shaped slide and a rack, and the upper end of the rack is provided with a clamping assembly for connecting and fixing with the bridge; The frame is provided with a transmission shaft, a reciprocating screw and a fixed shaft in sequence, the transmission shaft is connected to the reduction motor for transmission; the transmission shaft is connected to the pulley for transmission through an overrunning clutch, one end of the reciprocating screw is connected to another pulley, and the two pulleys are connected for transmission through a belt; the reciprocating screw is connected to a screw slider, which is connected to the slide; The upper end of the slide is rotatably provided with a hollow shaft, which is slidably connected to the transmission shaft and rotates synchronously with the transmission shaft; the lower end of the slide is provided with a hollow tube, which is slidably connected to the fixed shaft; the outer walls of the hollow tube and the hollow shaft are respectively provided with sprockets, and the two sprockets are connected and driven by a chain assembly; The hanging frame is slidably arranged in the guide groove of the slide, and one side of the hanging frame is a mounting plate, and the mounting plate is provided with a through positioning groove, and the chain assembly is partially arranged in the positioning groove. The hanging frame is provided with a locking mechanism, and the locking mechanism is used to connect and fix or release the connection and fixation with the chain assembly in the positioning groove; The locking mechanism includes a gear box fixed to the inner wall of the mounting plate, wherein a plurality of gears meshing with each other are rotatably provided in the gear box, a connecting rod is rotatably provided on the gear, and a clamping shaft is hingedly connected to the other end of the connecting rod; a plurality of guide holes corresponding to the clamping shaft are provided on the mounting plate, and the clamping shaft is slidably arranged close to the guide holes, and the clamping shaft is used to extend into the positioning groove and clamp into the corresponding chain link notch of the chain assembly; The upper and lower ends of the gear box are respectively provided with adjustment mechanisms for adjusting the tightness of the chain assembly in the positioning groove. The adjustment mechanism includes a cylinder, a return spring, a guide rod, a support rod and a clamping joint. The inner wall of the cylinder is provided with a return spring, the guide rod is slidingly arranged close to the inner wall of the cylinder, and the bottom end of the guide rod is connected to the return spring, the other end of the guide rod is slidably provided with a support rod, one end of the support rod is connected to the clamping joint, and the clamping joint can be clamped into the chain link notch of the chain assembly; the elasticity of the two return springs in the two adjusting mechanisms is different.

2. The suspended basket for bridge construction according to claim 1, characterized in that: A plurality of positioning grooves corresponding to the guide holes are arranged on the other side of the positioning groove.

3. The suspended basket for bridge construction according to claim 1, characterized in that: A guide block is provided at the bottom end of the inner wall of the gear box, and a locking tooth block is slidably provided on the guide block. The locking tooth block is meshed and connected with one of the gears.

4. The suspended basket for bridge construction according to claim 3, characterized in that: An adjusting screw is rotatably provided on one side of the locking tooth block, and the adjusting screw is threadedly connected to the gear box.

5. The suspended basket for bridge construction according to claim 3, characterized in that: A handle is connected to the rotating shaft of one of the gears, and a scale for indicating the rotation angle of the handle is provided on the outer wall of the gear box.

6. The suspended basket for bridge construction according to claim 1, characterized in that: The bottom end of the sliding frame is provided with a bottom frame for supporting the hanging frame.

7. The suspended basket for bridge construction according to claim 1, characterized in that: Guide cylinders are provided on both sides of the slide, and the guide cylinders are slidably connected to the reciprocating screw rod. The two guide cylinders are connected through a fixed frame, and a screw rod slider is fixed at the center of the fixed frame.

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