Lifting device capable of preventing clamping

Abstract

The utility model discloses an anti-jamming lifting device, which comprises a chain rolling mechanism, a roller mechanism and a submersible pump mechanism, wherein the chain rolling mechanism drives a chain to move to realize winding and unwinding, the chain comprises two groups of parallel chain sections, the two groups of chain sections are connected through a threading plate, the chain is erected on the surface, when the chain rolling mechanism rotates, the roller mechanism synchronously rotates to complete conveying of the chain, and the submersible pump mechanism is connected with the roller mechanism. The ascending and descending of the submersible pump mechanism are completed in the chain retracting and releasing process. According to the utility model, the threading plate is arranged between the two groups of chain segments for connection, the threading plate is provided with a plurality of threading holes for a wire and a water pipe to pass through, and the wire and the water pipe are matched with the rotary joint and the conductive slip ring at the two ends, so that the wire and the water pipe rotate along with the wire and the water pipe during winding and unwinding and cannot be twisted together; the arrangement effect is achieved, and the lines cannot be disordered and knotted.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting devices, and in particular relates to a lifting device capable of preventing jamming. Background Art

[0002] Collect samples from contaminated water bodies and analyze them to obtain basic data on water pollution. The water samples used for analysis should be representative, reflecting the chemical composition and characteristics of the water. The sampling method, location, timing, and frequency are determined based on the characteristics of the water body and the purpose of the analysis.

[0003] When monitoring the pollution of river water, it is generally necessary to sample the river water. The existing sampling method is to sample the river water through a sampling bottle. In patent 202220021270.0, a river water sampling device is provided, including: a vertical pole, a clamping mechanism and a sampling bottle. The vertical pole is provided with a limit hole from top to bottom. The clamping mechanism includes: a clamping frame and a fastening nut. The clamping frame is provided with a latch, the latch enters the limit hole, the pin body of the latch is provided with an external thread, the fastening nut is provided with an internal thread, the internal thread of the fastening nut is connected to the external thread of the latch, and the fastening nut fixes the clamping frame at the position of the limit hole. The clamping frame clamps the sampling bottle. The bottle mouth of the sampling bottle is provided with an electric control valve, and the electric control valve is connected to an external control switch through a wire. By setting a vertical pole and providing a limit hole on the vertical pole. By limiting the clamping mechanism on the limit hole, the clamping mechanism can be connected to different positions of the vertical pole. Finally, by arranging a sampling bottle on the clamping mechanism and controlling the bottle mouth of the sampling bottle, water bodies of different depths in the river can be sampled through the sampling bottle, thereby improving sampling efficiency.

[0004] However, the above method is to hold the sampling bottle at different heights of the pole for sampling. The sampling height is limited and deep sampling is not possible. When deep sampling is required, a professional lifting mechanism is required to complete it, so that the detection is more accurate and convenient.

[0005] However, conventional lifting mechanisms using oil cylinders and hydraulic pumps (see Patent 201610238092.6) are expensive. To prevent the wiring and pipes from twisting together during descent or ascent, the common practice is to separate the pipes and wiring from the lifting mechanism, preventing them from rotating with the mechanism. However, this can cause the pipes and wiring to pile up during ascent, making them prone to tangling. Utility Model Content

[0006] The purpose of the present utility model is to provide a lifting device that can prevent jamming, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a lifting device for preventing jamming, comprising a chain winding mechanism configured to be connected to one end of a chain, and the chain is retracted and extended by rotating the chain winding mechanism;

[0008] The limiting mechanism is installed on the chain rolling mechanism to limit its position;

[0009] The roller mechanism is configured so that the chain is laid on the surface. When the chain winding mechanism rotates, the roller mechanism rotates synchronously to complete the chain conveying.

[0010] An expansion mechanism is mounted on the roller mechanism to expand the chain rolling mechanism. The expansion mechanism includes an expansion bracket mounted on two roller mounting brackets. Each expansion bracket is provided with two rolling expansion pulleys. Each chain rolling baffle is located between the two rolling expansion pulleys.

[0011] The submersible pump mechanism is configured to be connected to the other end of the chain, and the submersible pump mechanism is raised and lowered during the process of chain retraction and extension.

[0012] Preferably, the chain comprises two groups of parallel chain segments, and the two groups of chain segments are connected by a threading plate, the threading plate is provided with a plurality of threading holes, and the chain segment is composed of a plurality of chain sides connected end to end in sequence.

[0013] Preferably in any of the above schemes, the chain side includes a chain plate and a mounting portion, the mounting portion is two parallel mounting plates, and one end of the two mounting plates is connected to the chain plate, a center hole is provided at the center of the front portion of the chain plate, and arc grooves are symmetrically provided counterclockwise above and below the center hole, two mounting holes are provided above and below the rear end of the chain plate located at the center hole, the threading plate is installed on the mounting hole, and three mounting holes are provided above and below on the mounting portion, and the three mounting holes are respectively connected to the arc groove above, the center hole in the center and the arc groove below adjacent chain plates, and the adjacent chain plates rotate with the mounting portion, and a chain tail is rotatably provided at the tail end of the chain side, and a chain tail mounting plate is provided on the chain tail.

[0014] Preferably in any of the above schemes, the chain winding mechanism includes a reel core shaft and two chain winding baffles fixed on the reel core shaft, both ends of the reel core shaft are mounted on the chain winding mounting bracket, and a core shaft bearing is provided at the connection, a core shaft bearing retaining ring is provided on the chain winding mounting bracket at the core shaft bearing, the reel core shaft is axially provided with a through core shaft through hole, a core shaft mounting portion is provided on the reel core shaft, the chain tail mounting plate is connected to the core shaft mounting portion, and a core shaft opening is provided on the core shaft mounting portion, the core shaft opening is connected to the core shaft through hole, and a core shaft gear is also provided on the reel core shaft.

[0015] Preferably in any of the above schemes, a chain motor is provided on one of the chain mounting brackets, a chain reducer is provided at the output end of the chain motor, the chain reducer is mounted on the chain mounting bracket through a reducer mounting plate, the output end of the chain reducer is connected to a driving wheel that cooperates with the core shaft gear for transmission, and a rotary joint mounting plate is installed on the chain mounting bracket, a rotary joint is installed on the rotary joint mounting plate, and a conductive slip ring is installed on the other chain mounting bracket through a hollow hexagonal rod.

[0016] Preferably in any of the above schemes, the rotary joint includes a fixed end mounted on a rotary joint mounting plate, and a rotating end connected to the fixed end and rotatably connected thereto, and both the fixed end and the rotating end have a through hole extending axially therethrough, and the through holes of the two are connected.

[0017] Preferably, in any of the above solutions, the conductive slip ring includes a stator, a conductive slip ring connecting plate provided on the stator, and a rotor rotatable relative to the stator, and the conductive slip ring connecting plate is connected to the hollow hexagonal rod by bolts.

[0018] Preferably in any of the above schemes, the limiting mechanism includes two pulley blocks, one end of the two pulley blocks is respectively installed on two chain mounting brackets, the other ends of the two pulley blocks are connected by a pull rod, and both ends of the pull rod are provided with threads, and bolts are provided on the threads, and the distance between the two pulley blocks is adjusted by rotating the bolts, thereby adjusting the distance between the two chain baffles, and the pulley block is rotatably connected to a limiting pulley, and the limiting pulley is slidably connected to the chain baffle.

[0019] The gear train is connected to the transmission gear of the said wheel frame by the said roller bearings, and the gear train is connected to the transmission gear of the said wheel frame by the said roller bearings. The cam is secured to the chassis and has a first end secured thereto so that the cam can be moved along the chain linking the chain and the second end secured thereto so that the cam can be moved along the chain linking the chain and the second end secured thereto so that the cam can be moved along the chain linking the chain and the chain linking the chain link

[0020] Preferably, in any of the above schemes, the submersible pump mechanism includes a front baffle connected to the roller mounting bracket through a front baffle mounting ear, a first travel switch and a second travel switch provided on the front baffle, wherein the first travel switch is located above the second travel switch, and chain side baffles are symmetrically provided on the back of the front baffle, the distance between the two chain side baffles matches the width of the chain, and both ends of the chain side baffles are bent outwards to form a bent portion;

[0021] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel is interlocked, and the interlocking structure of described sliding panel is interlocked.

[0022] It also includes two wires and a water pipe. One end of the two wires is connected to the conductive slip ring, and the other end passes through multiple threading plates along the chain in sequence and is connected to the sensor junction box and the water pump junction box respectively. The sensor junction box has three outlets, and the sensor junction box is connected to the oxygen concentration sensor and the liquid level transmitter respectively. The water pump junction box is connected to the DC water pump. One end of the water pipe is connected to the rotary joint, and the other end passes through multiple threading plates along the chain in sequence and is connected to the DC water pump.

[0023] The technical effects and advantages of the utility model are as follows: 1. A threading plate is set between the two groups of chain segments for connection. The threading plate is provided with multiple threading holes for the wires and water pipes to pass through. The rotary joints and conductive slip rings at both ends are used to allow the wires and water pipes to rotate when they are retracted and released, and they will not be twisted together. Moreover, after the wires and water pipes pass through the threading plate in turn, they play a role in sorting and the lines will not be messy or tangled.

[0024] 2. Through three sets of limiting mechanisms and one set of expansion mechanisms, it can be ensured that the distance between the two chain rolling baffles at the position where the chain is extended is always greater than that at other positions, so that the chain avoids contact with the edge of the chain rolling baffle and thus does not get stuck. At the same time, it can prevent other positions from expanding outward, avoiding misalignment and incoherence of the chain when winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 This is a schematic structural diagram of the chain rolling mechanism of the utility model;

[0027] Figure 3 This is an enlarged view of the structure at point A in the diagram of the present utility model;

[0028] Figure 4 This is a structural diagram of the chain rolling mechanism of the utility model from another perspective;

[0029] Figure 5 This is a structural diagram of a partial structure of the chain rolling mechanism of the utility model;

[0030] Figure 6 This is a schematic structural diagram of the core shaft of the wire reel of the present invention;

[0031] Figure 7 This is a schematic structural diagram of the limiting mechanism of the utility model;

[0032] Figure 8 This is a structural diagram of the roller mechanism of the utility model;

[0033] Figure 9 This is a structural diagram of the roller mechanism of the utility model from another perspective;

[0034] Figure 10 This is a structural diagram of a partial structure of the roller mechanism of the utility model;

[0035] Figure 11 This is a structural diagram of the second guide pulley mounting frame of the utility model;

[0036] Figure 12 This is a structural diagram of the submersible pump mechanism of the utility model;

[0037] Figure 13 This is a structural diagram of the submersible pump mechanism of the utility model from another perspective;

[0038] Figure 14 This is a structural diagram of the submersible pump mechanism of the utility model;

[0039] Figure 15 It is a structural schematic diagram of some chain segments of the utility model chain;

[0040] Figure 16 This is a structural diagram of a partial chain segment of the utility model from another perspective;

[0041] Figure 17 This is a schematic diagram of the structure of the rotary joint of the utility model;

[0042] Figure 18 This is a schematic structural diagram of the conductive slip ring of the utility model;

[0043] Figure 19 It is a cross-sectional view of the core shaft of the wire reel of the present invention.

[0044] In the figure: 1. Chain winding mechanism; 11. Limiting mechanism; 1101. Pulley block; 1102. Pull rod; 1103. Limiting pulley; 1104. Thread; 12. Chain winding baffle; 13. Chain winding mounting bracket; 14. Chain winding reducer; 15. Chain winding motor; 16. Rotary joint; 161. Rotating end; 162. Fixed end; 17. Reducer mounting plate; 18. Rotary joint mounting plate; 19. Through hole; 110. Mandrel bearing retaining ring; 111. Conductive slip ring; 111 0. Stator; 1111. Rotor; 1112. Slip ring connecting plate; 112. Reel mandrel; 113. Mandrel opening; 114. Mandrel through-hole; 115. Mandrel bearing; 116. Mandrel gear; 117. Mandrel mounting portion; 118. Hollow hexagonal rod; 2. Chain; 21. Chain tail; 22. Chain side; 220. Chain plate; 221. Arc groove; 222. Center hole; 223. Mounting portion; 224. Mounting hole; 23. Threading plate; 24. Chain tail mounting plate ;3. Roller mechanism;31. Roller mounting bracket;32. Bottom plate baffle;33. Roller;34. Roller outer baffle;35. First guide pulley mounting bracket;36. Second guide pulley mounting bracket;37. Roller bearing retaining ring;38. Roller reducer;39. Roller motor;310. Arc edge;311. Guide pulley;312. Roller bearing;313. Block;4. Submersible pump mechanism;41. Front baffle;42. Travel switch 1;43. Travel switch 2;44. Sensor junction box; 45. Chain baffle; 46. Oxygen concentration sensor; 47. DC water pump; 48. External expansion plate; 49. Water pump junction box; 410. Liquid level transmitter; 411. Water pump transition plate; 412. Front baffle mounting ear; 413. Chain side baffle; 414. Bending part; 415. Travel switch top block; 416. Inclined plate mounting plate; 417. Inclined plate; 418. Water pump mounting plate; 5. Expansion mechanism; 51. Expansion bracket; 52. Expansion pulley; 6. Bottom plate. DETAILED DESCRIPTION

[0045] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include at least one of these features.

[0048] The utility model provides Figure 1 A lifting device shown, comprising

[0049] The chain reel mechanism 1 is configured to be connected to one end of the chain 2, and the chain 2 is retracted and extended by rotating the chain reel mechanism 1;

[0050] Three sets of limiting mechanisms 11 are installed on the chain rolling mechanism 1 to limit its position. The three sets of limiting mechanisms 11 are distributed in the upper, lower and front directions.

[0051] The roller mechanism 3 is configured so that the chain 2 is laid on the surface. When the chain winding mechanism 1 rotates, the roller mechanism 3 rotates synchronously to complete the conveyance of the chain 2.

[0052] 1 set of expansion mechanism 5, installed on the roller mechanism 3, expands the chain mechanism 1, 1 set of expansion mechanism 5 is located at a position near the upper rear 45° angle, refer to Figure 8 As shown, the expansion mechanism 5 includes two expansion brackets 51 respectively mounted on two roller mounting brackets 31, each expansion bracket 51 is fixed to the roller mounting bracket 31 by two bolts, and each expansion bracket 51 is rotatably connected to two rolling expansion pulleys 52, and each chain baffle 12 is located between the two rolling expansion pulleys 52. The two chain baffles 12 here are expanded to prevent the chain 2 from getting stuck on the edge of the chain baffle 12 during transportation, affecting lifting and lowering.

[0053] The submersible pump mechanism 4 is configured to be connected to the other end of the chain 2 , and the submersible pump mechanism 4 is raised and lowered during the process of the chain 2 being retracted and extended.

[0054] The above mechanisms are all installed on the base plate 6.

[0055] Reference Figure 6 、 15 and 16, the chain 2 includes two groups of parallel chain segments, and the two groups of chain segments are connected by a threading plate 23, and the threading plate 23 is provided with three threading holes, the apertures on both sides are the same, for the wires to pass through, and the aperture in the middle is larger than the aperture on both sides, for the water pipes to pass through. The chain segment is composed of a plurality of chain sides 22 connected end to end, and the chain side 22 includes a chain plate 220 and a mounting portion 223. The ports of the chain plate 220 and the mounting portion 223 are both arc-shaped. The mounting portion 223 is two parallel mounting plates, and one end of the two mounting plates is connected to the chain plate 220. A center hole 222 is provided at the center of the front part of the chain plate 220, and arc grooves 221 are symmetrically opened counterclockwise above and below the center hole 222. The arc groove 221 can be set to a 45° arc, so that the maximum angle of upward movement of the chain 2 is 180°, and it is in a horizontal position. The chain 220 is fixed to the upper and lower ends of the chain 220 by the center hole 222, and the threading plate 23 is fixed to the mounting hole 224 by bolts or screws. The mounting portion 223 has three mounting holes 224 opened at the upper and lower ends. The three mounting holes 224 are respectively connected to the upper arc groove 221 of the adjacent chain plates 220, the center hole 222 of the center and the lower arc groove 221 by a rotating shaft, and the adjacent chain plates 220 rotate with the mounting portion 223. The rotating stroke is the length of the arc groove 221, and a chain tail 21 is rotated at the tail end of the chain side 22 by a rotating shaft, and a chain tail mounting plate 24 is integrally formed on the chain tail 21.

[0056] Reference Figure 2-5As shown in Figures 1 and 2, the chain winding mechanism 1 includes a winding core shaft 112 and two chain winding baffles 12 fixed on the winding core shaft 112. The two chain winding baffles 12 rotate with the winding core shaft 112, and the width between the two chain winding baffles 12 is slightly larger than the width of the chain 2, allowing the chain 2 to be wound between the two chain winding baffles 12. Both ends of the winding core shaft 112 are mounted on the chain winding mounting bracket 13, and a core shaft bearing 115 is rotatably mounted at the connection. A core shaft bearing retaining ring 110 is installed at the core shaft bearing 115 on the chain winding mounting bracket 13 by bolts. The winding core shaft 112 has a through core shaft through hole 114 along the axial direction. A core shaft mounting portion 117 is provided on the winding core shaft 112. The core shaft mounting portion 117 is A plane, the chain tail mounting plate 24 is fixed to the spindle mounting portion 117 by bolts, and a spindle opening 113 is opened on the spindle mounting portion 117, the spindle opening 113 is communicated with the spindle through-hole 114, a spindle gear 116 is fixed on the reel spindle 112, a chain motor 15 is bolted to one of the chain mounting brackets 13, the output end of the chain motor 15 is connected to the chain reducer 14, the chain reducer 14 is mounted on the chain mounting bracket 13 through the reducer mounting plate 17, the output end of the chain reducer 14 is provided with a driving wheel that cooperates with the spindle gear 116 for transmission, the driving wheel drives the spindle gear 116 to rotate, and a rotary joint mounting plate 18 is mounted on the chain mounting bracket 13 by bolts, refer to Figure 17 As shown, a rotary joint 16 is mounted on the rotary joint mounting plate 18 by screws. The rotary joint 16 includes a fixed end 162 fixed to the rotary joint mounting plate 18 by screws, and a rotating end 161 connected to the fixed end 162 and rotatably connected thereto. A through hole 19 is opened along the axial direction on both the fixed end 162 and the rotating end 161, and the through holes 19 of the two are connected. Figure 18 As shown, a conductive slip ring 111 is installed on another chain mounting bracket 13 through a hollow hexagonal rod 118. Specifically, the hollow hexagonal rod 118 is threadedly fixed to the chain mounting bracket 13. The conductive slip ring 111 includes a stator 1110, a conductive slip ring connecting plate 1112 fixed on the stator 1110, and a rotor 1111 rotating relative to the stator 1110. The conductive slip ring connecting plate 1112 is connected to the hollow hexagonal rod 118 by bolts.

[0057] Reference Figure 7As shown, the limiting mechanism 11 includes two pulley blocks 1101, one end of the two pulley blocks 1101 is respectively installed on two chain mounting brackets 13 by two bolts, and the other ends of the two pulley blocks 1101 are connected by a pull rod 1102, and both ends of the pull rod 1102 are provided with threads 1104, and bolts are threadedly connected to the threads 1104. The distance between the two pulley blocks 1101 is adjusted by rotating the bolts, thereby adjusting the distance between the two chain baffles 12, so that the two chain baffles 12 will not be expanded too much outward, resulting in the situation that the chain 2 is not located in the passing plane when it is retracted. The pulley block 1101 is rotatably connected to the limiting pulley 1103, and the limiting pulley 1103 is slidably connected to the chain baffle 12.

[0058] Reference Figure 8-11 As shown, the roller mechanism 3 includes a roller 33 and two roller outer baffles 34 connected to the roller 33. 3-5 blocks 313 are distributed on the surface of the roller 33, so that the arc length between two adjacent blocks 313 is consistent with the interval between the two threading plates 23. The two ends of the roller 33 are mounted on the roller mounting bracket 31, and a roller bearing 312 is provided at the connection point. A roller bearing retaining ring 37 is fixed with bolts or screws at the roller bearing 312 on the roller mounting bracket 31. A roller motor 39 is bolted to one of the roller mounting brackets 31. The output end of the roller motor 39 is connected to a roller reducer 38. The output end of the roller reducer 38 is connected to the roller 33 to drive the roller 33 to rotate. The outer circumferential ends of the two roller outer baffles 34 are set to arc edges 310 to prevent the chain 2 from getting stuck when rotating. The bottom bolts of the two roller mounting brackets 31 are installed with a bottom plate wire block plate 32, and in the roller mechanism The first guide pulley mounting bracket 35 is mounted on the upper portion of the first guide pulley mounting bracket 35 and the second guide pulley mounting bracket 36, and the first guide pulley mounting bracket 35 is mounted on one end of the chain winding mechanism 1, and the second guide pulley mounting bracket 36 is mounted on the other end, and both are located at the upper end portion. The upper portion of the first guide pulley mounting bracket 35 is rotatably connected to a guide pulley 311, which is located at a position 45° above the roller 33. The second guide pulley mounting bracket 36 is provided with three guide pulleys 311, and the uppermost guide pulley 311 is also located at a position 45° above the roller 33. The other two guide pulleys 311 are located on the side and are vertically distributed. The distribution positions of all guide pulleys 311 are consistent with the movement trajectory of the chain 2, forming a limit to prevent it from escaping during movement.

[0059] Reference Figure 12-14As shown, the submersible pump mechanism 4 includes a front baffle 41 connected to the roller mounting bracket 31 through a front baffle mounting ear 412, the front baffle mounting ear 412 is bolted to the roller mounting bracket 31, and a travel switch 1 42 and a travel switch 2 43 are arranged on the front baffle 41, and the travel switch 1 42 is located above the travel switch 2 43. The back of the front baffle 41 is fixed with two parallel chain side baffles 413 by bolts, and the distance between the two chain side baffles 413 is slightly larger than the width of the chain 2, so that it can move along the two chain side baffles 413, and at the same time, it can also form a limit to prevent left and right deviation. The two ends of the chain side baffle 413 are bent outward to form a bending portion 414, and also include a chain baffle 45 mounted on the roller mounting bracket 31 by bolts, and the chain baffle 45 is located below the front baffle 41. A water pump transition plate 411 is provided on the inner side of the chain baffle 45. There is no contact between the water pump transition plate 411 and the chain baffle 45, and only the water pump The transition plate 411 moves up and down along the chain guard 45. Two inclined plate mounting plates 416 are fixed to the upper bolts of the water pump transition plate 411. Each inclined plate mounting plate 416 has two inclined plates 417 connected at right angles. Each inclined plate 417 is trapezoidal, with the short side at the top. The upper parts of the two parallel inclined plates 417 are rotatably connected to the mounting portion 223 of the chain 2 through a rotating shaft. The other two inclined plates 417 are located in the same plane. The bottom of the chain guard 45 is expanded outward to form The outer plate 48 cooperates with the outer plate 48 in the process of the inclined plate 417 moving upward to enter the chain baffle 45, and will not get stuck on the chain baffle 45. The water pump transition plate 411 is also provided with a sensor junction box 44, an oxygen concentration sensor 46, a water pump mounting plate 418, a water pump junction box 49, a liquid level transmitter 410, and a travel switch top block 415. A DC water pump 47 is installed on the water pump mounting plate 418. The above connections all use conventional bolts or screws.

[0060] It also includes two wires and a water pipe. One end of the two wires is connected to the rotor 1111 of the conductive slip ring 111, and then the wires pass through the stator 1110. The other end passes through multiple threading plates 23 along the chain 2 in sequence and is connected to the sensor junction box 44 and the water pump junction box 49 respectively. The sensor junction box 44 has three outlets. The sensor junction box 44 is respectively connected to the oxygen concentration sensor 46 and the liquid level transmitter 410. The water pump junction box 49 is connected to the DC water pump 47. The above-mentioned wire ends are waterproofed by filling and sealing. One end of the water pipe is connected to the rotating end 161 of the rotary joint 16, and the water sample flows out from the fixed end 162. The rotary joint 16 is a conventional means. With the above arrangement, when the reel core shaft 112 rotates, the water pipe and the wire will not twist together. The other end passes through multiple threading plates 23 along the chain 2 in sequence and is connected to the DC water pump 47.

[0061] During the use of the lifting device to prevent jamming, when it needs to be lowered, the roller motor 39 and the chain motor 15 respectively drive the roller 33 and the reel core shaft 112 to rotate, and the chain 2 drives the submersible pump mechanism 4 to move downward along the roller 33. Since the maximum bending angle of the chain 2 upward is 180°, the chain 2 will not sag when moving between the chain mechanism 1 and the roller 33, thereby affecting the lifting efficiency. During the descent, the water pipe unfolds with the chain 2, and the rotating end 161 is driven to rotate during the unfolding process, so that the water pipe will not be twisted together. Moreover, the wire unfolds with the chain 2, and the rotor 1111 is driven to rotate during the unfolding process, so that the wire will not be twisted. Together, when it descends to the appropriate position, start the DC water pump 47 to send the water sample out of the water pipe and collect the water sample. The oxygen concentration sensor 46 and the liquid level transmitter 410 are auxiliary tools, which are all conventional technologies; when it is necessary to rise, just rotate the roller 33 and the reel core shaft 112 in the opposite direction. When the travel switch top block 415 is located at the travel switch 2 43, stop rotating and complete the rise. However, when the travel switch 2 43 is damaged, the travel switch top block 415 continues to rise and reaches the travel switch 1 42, which can also stop the reverse rotation of the roller 33 and the reel core shaft 112. At this time, the rising action is completed. The setting of the two travel switches can ensure the smooth progress of the work.

[0062] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A lifting device for preventing jamming, characterized in that: include A chain reel mechanism (1) is configured to be connected to one end of a chain (2), and the chain (2) is retracted and extended by rotating the chain reel mechanism (1); The chain (2) comprises two groups of parallel chain segments, and the two groups of chain segments are connected by a threading plate (23), and the threading plate (23) is provided with a plurality of threading holes. The chain segment is composed of a plurality of chain sides (22) connected end to end in sequence, and the chain side (22) comprises a chain plate (220) and a mounting portion (223). The mounting portion (223) is two parallel mounting plates, and one end of each mounting plate is connected to the chain plate (220). A center hole (222) is provided at the center of the front part of the chain plate (220), and arc grooves (221) are provided symmetrically counterclockwise above and below the center hole (222). The chain plate (22 0) is provided with two mounting holes (224) at the rear end of the center hole (222), the threading plate (23) is installed on the mounting hole (224), and the mounting portion (223) is provided with three mounting holes (224) at the upper and lower ends. The three mounting holes (224) are respectively connected to the upper arc groove (221) of the adjacent chain plate (220), the central hole (222) and the lower arc groove (221), and the adjacent chain plate (220) rotates with the mounting portion (223), and a chain tail (21) is rotatably provided at the tail end of the chain side (22), and a chain tail mounting plate (24) is provided on the chain tail (21); A limiting mechanism (11) is installed on the chain winding mechanism (1) to limit the position thereof; The roller mechanism (3) is configured such that the chain (2) is laid on a surface, and when the chain winding mechanism (1) rotates, the roller mechanism (3) rotates synchronously to complete the conveyance of the chain (2); An expansion mechanism (5) is mounted on the roller mechanism (3) to expand the chain rolling mechanism (1), wherein the expansion mechanism (5) comprises an expansion bracket (51) mounted on two roller mounting brackets (31), and each expansion bracket (51) is provided with two rolling expansion pulleys (52); The submersible pump mechanism (4) is configured to be connected to the other end of the chain (2), and the submersible pump mechanism (4) is raised and lowered during the process of the chain (2) being retracted and extended.

2. The anti-stuck lifting device according to claim 1, characterized in that: The chain winding mechanism (1) comprises a wire reel core shaft (112) and two chain winding baffles (12) fixed on the wire reel core shaft (112); both ends of the wire reel core shaft (112) are mounted on a chain winding mounting bracket (13), and a core shaft bearing (115) is provided at the connection; a core shaft bearing retaining ring (110) is provided on the chain winding mounting bracket (13) at the core shaft bearing (115); the wire reel core shaft (112) A through-core through hole (114) is provided in the axial direction, a core shaft mounting portion (117) is provided on the reel core shaft (112), the chain tail mounting plate (24) is connected to the core shaft mounting portion (117), and a core shaft opening (113) is provided on the core shaft mounting portion (117), the core shaft opening (113) is communicated with the core shaft through hole (114), and a core shaft gear (116) is also provided on the reel core shaft (112).

3. The anti-stuck lifting device according to claim 2, characterized in that: A chain motor (15) is provided on one of the chain mounting brackets (13), a chain reducer (14) is provided at the output end of the chain motor (15), the chain reducer (14) is installed on the chain mounting bracket (13) through a reducer mounting plate (17), the output end of the chain reducer (14) is connected to a driving wheel that cooperates with a core shaft gear (116), and a rotary joint mounting plate (18) is installed on the chain mounting bracket (13), a rotary joint (16) is installed on the rotary joint mounting plate (18), and a conductive slip ring (111) is installed on the other chain mounting bracket (13) through a hollow hexagonal rod (118).

4. The anti-stuck lifting device according to claim 3, characterized in that: The rotary joint (16) comprises a fixed end (162) mounted on a rotary joint mounting plate (18), and a rotating end (161) connected to the fixed end (162) and rotatably connected thereto. Both the fixed end (162) and the rotating end (161) are provided with a through hole (19) extending therethrough along the axial direction, and the through holes (19) of the two are in communication.

5. The anti-stuck lifting device according to claim 4, characterized in that: The conductive slip ring (111) comprises a stator (1110), a conductive slip ring connecting plate (1112) arranged on the stator (1110), and a rotor (1111) rotatably arranged relative to the stator (1110); the conductive slip ring connecting plate (1112) is connected to a hollow hexagonal rod (118) via bolts.

6. The anti-stuck lifting device according to claim 5, characterized in that: The limiting mechanism (11) includes two pulley blocks (1101), one end of the two pulley blocks (1101) is respectively installed on two chain mounting brackets (13), and the other ends of the two pulley blocks (1101) are connected by a pull rod (1102), and both ends of the pull rod (1102) are provided with threads (1104), and bolts are provided on the threads (1104). The distance between the two pulley blocks (1101) is adjusted by rotating the bolts, thereby adjusting the distance between the two chain baffles (12). The pulley block (1101) is rotatably connected to a limiting pulley (1103), and the limiting pulley (1103) is slidably connected to the chain baffle (12).

7. The anti-stuck lifting device according to claim 6, characterized in that: The roller mechanism (3) comprises a roller (33) and two roller outer baffles (34) connected to the roller (33); a plurality of baffles (313) are distributed on the surface of the roller (33); both ends of the roller (33) are mounted on a roller mounting bracket (31), and roller bearings (312) are provided at the connection; a roller bearing retaining ring (37) is provided on the roller mounting bracket (31) at the roller bearing (312); a roller motor (31) is provided on one of the roller mounting brackets (31). 9), the output end of the roller motor (39) is provided with a roller reducer (38), the output end of the roller reducer (38) is connected to the roller (33), driving the roller (33) to rotate, the outer circumferential ends of the two roller outer baffles (34) are set as arc edges (310) to prevent the chain (2) from getting stuck when rotating, the bottom of the two roller mounting brackets (31) is provided with a bottom plate baffle (32), and a guide mechanism is provided on the roller mechanism (3), configured to limit and guide the chain (2).

8. The anti-stuck lifting device according to claim 7, characterized in that: The submersible pump mechanism (4) comprises a front baffle (41) connected to a roller mounting bracket (31) via a front baffle mounting ear (412), a first travel switch (42) and a second travel switch (43) arranged on the front baffle (41), wherein the first travel switch (42) is located above the second travel switch (43), and chain side baffles (413) are symmetrically arranged on the back side of the front baffle (41), the distance between the two chain side baffles (413) matches the width of the chain (2), and the two ends of the chain side baffles (413) are bent outward to form a bent portion (414).

9. The anti-stuck lifting device according to claim 8, characterized in that: The invention also includes a chain baffle (45) mounted on the roller mounting bracket (31), the chain baffle (45) being located below the front baffle (41), a water pump transition plate (411) being provided on the inner side of the chain baffle (45), the water pump transition plate (411) moving up and down along the chain baffle (45), two inclined plate mounting plates (416) being provided above the water pump transition plate (411), an inclined plate (417) being provided above the inclined plate mounting plate (416), two parallel inclined plates (417), both of the inclined plates (417) being connected to the head end of the chain (2), a sensor junction box (44), an oxygen concentration sensor (46), a water pump mounting plate (418), a water pump junction box (49), a liquid level transmitter (410), and a travel switch top block (415), and a DC water pump (47) being installed on the water pump mounting plate (418).

10. The anti-stuck lifting device according to claim 9, characterized in that: The device further comprises two conducting wires and a water pipe, one end of the two conducting wires being connected to a conductive slip ring (111), and the other end of the two conducting wires being sequentially passed through a plurality of threading plates (23) along a chain (2) and being respectively connected to a sensor junction box (44) and a water pump junction box (49), the sensor junction box (44) being respectively connected to an oxygen concentration sensor (46) and a liquid level transmitter (410), the water pump junction box (49) being connected to a DC water pump (47), one end of the water pipe being connected to a rotary joint (16), and the other end of the two conducting wires being sequentially passed through a plurality of threading plates (23) along a chain (2) and being connected to a DC water pump (47).

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