Chute device for concrete pouring of pipe jacking well

Abstract

The utility model provides a chute device for concrete pouring of a pipe-jacking well, which comprises a hopper, and the hopper forms a conical channel with a large upper part and a small lower part so as to facilitate the flowing of concrete slurry; the suspension rod and the top of the pipe-jacking well are fixed to form a stress fulcrum, the hopper is suspended on the suspension rod, and the position of the hopper in the pipe-jacking well can be changed by moving on the suspension rod; the flow guide device is connected with a bottom outlet of the hopper, the flow guide device conveys the concrete grout into the pipe jacking well through a bent flow guide channel, the height of the flow guide device can be adjusted, and the length of an output section of the flow guide device can be adjusted. The chute device for concrete pouring of the pipe-jacking well can be installed in a suspended mode through the hopper and can move on the suspension rod, the technical problem that a chute is inconvenient to disassemble, assemble and move is solved, on the premise that the chute device is not disassembled, the effects that pouring is completed at a time and interference with excavator construction is avoided are achieved, time and labor are saved, and the construction efficiency is improved. Safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring components, and more specifically, to a chute device for concrete pouring in a jacking well. Background Technology

[0002] When constructing a pipe jacking well, it is often necessary to first excavate to a certain depth, then construct the well wall, then excavate to a certain depth, then construct the well wall again, until the design elevation is reached and the bottom is sealed.

[0003] Patent application number 202320519592.2 discloses a rotating chute structure for concrete pouring. By adjusting the pad, clamping seat and bolts in conjunction with the elongated holes of the support, the length, height and inclination angle of the chute can be adjusted to adapt to different pouring surfaces.

[0004] Patent application number 202120634654.5 discloses a rotary chute device for concrete pouring. By operating the worm gear to rotate, the turbine rotates, and the turbine rotates, which in turn rotates the ring seat, thereby causing the telescopic rod on the ring seat and the chute mechanism to rotate synchronously, so that the chute mechanism can rotate 360°, thereby increasing the pouring range of the chute mechanism; the extension and retraction of the telescopic rod drives the material hopper to rise and fall, and the rise and fall of the material hopper drives the rise and fall of the material pipe.

[0005] The above two solutions have the following drawbacks:

[0006] 1. Since the pipe jacking well needs to be excavated and poured with concrete in sections, the chute device in the above two schemes needs to be removed during the equipment excavation stage and the deep excavation stage to facilitate the excavator construction. The removal process is time-consuming and labor-intensive.

[0007] 2. Although the height of the chute device in the above two schemes can be adjusted to adapt to the depth of the jacking well, the adjustment range is limited. When the jacking well is deep, the material inlet cannot be raised. When the distance between the material inlet and the wellhead is too large, a pump truck or crane is needed to deliver the material, which increases the cost of use and the safety risk.

[0008] 3. Both of the above schemes use ground-mounted chute devices, which means that during pouring, the space occupied by the chute device itself cannot be filled in one go, requiring the use of mobile equipment for secondary pouring, which is time-consuming and labor-intensive. Utility Model Content

[0009] This utility model provides a chute device for concrete pouring in pipe jacking wells, which solves the technical problems of existing chute devices for concrete pouring in pipe jacking wells, which are difficult to complete in one go due to their ground-mounted installation, and are time-consuming, labor-intensive to dismantle and move, and have a limited height adjustment range.

[0010] This utility model provides a chute device for concrete pouring in a pipe jacking well, including a hopper formed into a conical channel with a larger top and a smaller bottom to facilitate the flow of concrete slurry. It also includes: at least one suspension rod, which forms a support point by being fixed to the top of the pipe jacking well; the hopper is suspended from the suspension rod and its position within the pipe jacking well can be changed by moving it along the suspension rod; and a flow guiding device connected to the bottom outlet of the hopper. The flow guiding device transports the concrete slurry into the pipe jacking well through a curved flow channel. The height of the flow guiding device is adjustable to accommodate pipe jacking wells of different depths, and the length of the output section of the flow guiding device is adjustable to control the output landing point of the concrete slurry.

[0011] Furthermore, the hopper is provided with a sliding sleeve that facilitates the passage of the suspension rod, and the sliding sleeve and the suspension rod can slide freely between each other.

[0012] Furthermore, the flow guiding device includes: at least one first pipe section, the flow guiding device being connected to the bottom outlet of the hopper through one end of the first pipe section; and a rotating pipe section, the rotating pipe section including a connector and a rotating component, the other end of the first pipe section being connected to the connector, and the rotating component and the connector being coaxially rotatable.

[0013] Furthermore, the flow guiding device further includes: a first lower chute, one end of which is provided with a discharge section connected to the rotating component, and a sliding rod extending along its length is provided at the bottom of the end of the first lower chute away from the discharge section; a second lower chute, one end of which is connected to the other end of the first lower chute, and a connecting sleeve is provided at the top of the end of the second lower chute near the first lower chute, through which the sliding rod can slide freely.

[0014] Furthermore, the flow guiding device also includes a traction rope and a winch. The bottom of the first lower chute is provided with an ear plate, and the winch is located at the bottom of the second lower chute. One end of the traction rope is connected to the ear plate, and the other end is connected to the winch. The traction rope is wound and released by the winch to realize the free extension and retraction of the second lower chute relative to the first lower chute.

[0015] Furthermore, the winch includes: a support, a first gear, a rope shaft, a second gear, and a crank handle; the winch is fixed to the bottom of the second lower chute by the support, the rope shaft is used to wind the traction rope, one end of the rope shaft is connected to the central shaft of the first gear, the first gear meshes with the second gear for transmission, and a crank handle is connected to the central shaft of the second gear.

[0016] Furthermore, the winch also includes a limiting mechanism and a third gear. The first gear and the second gear are located inside the side wall of the support. The third gear is coaxially arranged with the second gear and is located on both sides of the same side wall of the support. The limiting mechanism includes a locking block, a push cap, and a positioning post. One end of the positioning post is located on the outside of the side wall of the support, and the other end of the positioning post has a protruding limiting post on its side wall. The push cap is connected to the locking block and is sleeved on the positioning post, rotating and sliding freely along the positioning post. The locking block can be moved to the space between the two teeth of the third gear to prevent the third gear from rotating. A groove is provided in the middle area between the push cap and the locking block, opposite to the sliding trajectory of the limiting post. A stop groove is provided on the groove. Rotating the push cap can fix the limiting post in the stop groove.

[0017] Furthermore, the winch also includes a spring, which is located between the locking block and the positioning post and is sleeved on the positioning post.

[0018] Furthermore, the bottom of the rotating component has outwardly protruding lugs on both sides, and a bushing is provided at the position opposite to the lugs; the discharge part includes a bottom plate and a guard plate, the guard plate has ear holes on both sides for the lugs to pass through, and an upwardly protruding positioning shaft is provided on the guard plate at the position corresponding to the bushing.

[0019] Furthermore, it also includes an upper chute device, which includes an inclined chute plate, a limiting block at the bottom of the lower end of the chute plate, the limiting block abutting against the edge of the hopper, and a support leg at the bottom of the higher end of the chute plate for support.

[0020] This invention relates to a chute device for concrete pouring in pipe jacking shafts. A suspension rod is fixedly installed at the top of the pipe jacking shaft to form a stress point. A hopper is suspended from the suspension rod and its position within the pipe jacking shaft can be changed by moving it along the rod. A flow guiding device is connected to the bottom outlet of the hopper, and the flow guiding device transports concrete slurry into the pipe jacking shaft through a curved flow channel. By suspending the hopper and flow guiding device, the problem of completing pouring in one go without disassembling and reinstalling the chute device is solved. By moving the position of the hopper on the suspension rod, the problem of interference between the excavator and the chute device during construction is solved. This invention's chute device for concrete pouring in pipe jacking shafts can be suspended and installed with the hopper, and its movable nature on the suspension rod solves the technical problems of inconvenient chute disassembly, assembly, and movement. It achieves one-time pouring without disassembling the chute device, avoiding interference with excavator construction, saving time and labor, and ensuring safety and reliability.

[0021] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is an exploded view of the overall structure of an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the cooperation between the hopper and the suspension rod in an embodiment of this utility model;

[0026] Figure 4 This is a structural schematic diagram of the first pipe section according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the rotating tube section according to an embodiment of the present utility model;

[0028] Figure 6 This is a cross-sectional schematic diagram of a rotating tube section according to an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the cooperation between the first lower chute and the second lower chute according to an embodiment of the present utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the first lower chute according to an embodiment of the present utility model;

[0031] Figure 9 This is a schematic diagram of the structure of the second lower chute according to an embodiment of the present utility model;

[0032] Figure 10 This is a schematic diagram of the winch structure according to an embodiment of the present utility model;

[0033] Figure 11 This is a schematic diagram of the limiting mechanism in the locked state according to an embodiment of the present utility model;

[0034] Figure 12 This is a schematic diagram of the limiting mechanism in the unlocked state according to an embodiment of the present utility model;

[0035] Figure 13 This is a schematic diagram of the engagement between the limiting mechanism and the third gear in the unlocked state according to an embodiment of the present utility model;

[0036] Figure 14 This is a schematic diagram of the engagement between the limiting mechanism and the third gear in the locked state according to an embodiment of the present utility model;

[0037] Figure 15 This is a side view of the limiting mechanism and the third gear in the locked state according to an embodiment of the present utility model.

[0038] Figure label:

[0039] 1. Hopper; 2. Suspension rod; 3. Flow guiding device; 4. Upper chute device;

[0040] Sliding sleeve 10; First pipe section 31; Rotating pipe section 32; First lower chute 33; Second lower chute 34; Traction rope 35; Winch 36; Trench plate 41;

[0041] Connector 321; Rotating component 322; Discharge section 331; Slide rod 332; Ear plate 333; Connecting sleeve 341; Support 361; First gear 362; Rope shaft 363; Second gear 364; Handle 365; Limiting mechanism 366; Third gear 367; Spring 368; Limiting block 411; Support leg 412;

[0042] 3661; push cap 3662; positioning post 3663; limit post 3664; slide groove 3665; stop groove 3666; hanging ear 3221; bushing 3222; base plate 3311; guard plate 3312; ear hole 3313; positioning shaft 3314. Detailed Implementation

[0043] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0044] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0045] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0046] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0048] In the specification and claims of this utility model, the terms "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0049] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] The following describes in detail, with reference to the accompanying drawings, a chute device for concrete pouring in a jacking well according to an embodiment of the present invention.

[0052] A chute device for concrete pouring in a jacking shaft according to an embodiment of the present invention includes: a hopper 1, which is formed into a conical channel with a larger upper part and a smaller lower part to facilitate the flow of concrete slurry; at least one suspension rod 2, which forms a force support point by being fixed to the top of the jacking shaft, the hopper 1 is suspended on the suspension rod 2 and its position in the jacking shaft can be changed by moving on the suspension rod 2; and a flow guiding device 3, which is connected to the bottom outlet of the hopper 1, and the flow guiding device 3 transports the concrete slurry into the jacking shaft through a curved flow guiding channel. The height of the flow guiding device 3 can be adjusted to adapt to jacking shafts of different depths, and the length of the output section of the flow guiding device 3 can be adjusted to control the output landing point of the concrete slurry.

[0053] In other words, a chute device for concrete pouring in a jacking well according to an embodiment of the present invention includes a hopper 1, a suspension rod 2, and a flow guiding device 3.

[0054] The hopper 1 is formed into a conical channel that is larger at the top and smaller at the bottom to facilitate the flow of concrete slurry. The concrete slurry enters from the large end of the hopper 1 and flows out through the small end of the hopper 1.

[0055] The suspension rod 2 forms a support point by being fixed to the top of the jacking shaft. The hopper 1 is suspended from the suspension rod 2 and its position within the jacking shaft can be changed by moving along the suspension rod 2. Specifically, the suspension rod 2 can rest on the wall of the jacking shaft, with its two ends overlapping to form a support point. The length of the suspension rod 2 should be greater than the outer diameter of the jacking shaft wall to ensure sufficient bearing strength. The number of suspension rods 2 can be increased or decreased according to the size and depth of the jacking shaft to ensure that the suspension rod 2 can withstand the self-weight of the entire chute device, as well as the weight and impact of the concrete slurry, ensuring construction safety. The suspension rod 2 can be made from locally sourced steel pipes, saving costs. Considering that the suspension rod 2 provides a movable track for the movement of the hopper 1, the path of the suspension rod 2 is not limited to a straight line; it can also be designed as a non-linear path according to construction needs. The chute device is suspended on the suspension rod 2 via the hopper 1, without occupying the bottom entry position. The position of the chute device in the well can be adjusted by moving the suspension rod 2. When pouring at the bottom of the well, there is no need to disassemble or reassemble, and the pouring can be completed in one go.

[0056] The flow guiding device 3 is connected to the bottom outlet of the hopper 1. The flow guiding device 3 is responsible for transporting the concrete slurry collected in the hopper 1 to the jacking shaft through its own flow channel. Therefore, the flow channel of the flow guiding device 3 is designed to be curved to change the flow direction of the concrete slurry and meet the pouring requirements. At the same time, the height of the flow guiding device 3 can be adjusted to adapt to jacking shafts of different depths, and the length of the output section of the flow guiding device 3 can be adjusted to control the output landing point of the concrete slurry.

[0057] According to this utility model, a chute device for concrete pouring in a pipe jacking shaft is provided. A suspension rod 2 is fixedly installed at the top of the pipe jacking shaft to form a stress point. A hopper 1 is suspended from the suspension rod 2 and its position within the pipe jacking shaft can be changed by moving it on the suspension rod 2. A flow guiding device 3 is connected to the bottom outlet of the hopper 1, and the flow guiding device 3 transports concrete slurry into the pipe jacking shaft through a curved flow guiding channel. By suspending the hopper 1 and the flow guiding device 3, the problem of completing pouring in one go without disassembling the chute device is solved. By moving the position of the hopper 1 on the suspension rod 2, the problem of interference between the excavator and the chute device during construction is solved. This utility model's chute device for concrete pouring in a pipe jacking shaft can be suspended by the hopper 1 and can be moved on the suspension rod 2, solving the technical problems of inconvenient disassembly, assembly, and movement of the chute. Without disassembling the chute device, it achieves the effect of completing pouring in one go, avoiding interference with excavator construction, saving time and labor, and ensuring safety and reliability.

[0058] According to one embodiment of the present invention, the hopper 1 is provided with a sliding sleeve 10 that facilitates the passage of the suspension rod 2, and the sliding sleeve 10 and the suspension rod 2 can slide freely between each other.

[0059] In other words, such as Figure 3 As shown, in order to facilitate the free sliding of the hopper 1 on the suspension rod 2, a sliding sleeve 10 is provided on the hopper 1 for the suspension rod 2 to pass through. The main body of the hopper 1 is suspended on the suspension rod 2 through the sliding sleeve 10. The number of sliding sleeves 10 can be determined by a comprehensive evaluation based on the self-weight of the chute device and the weight and impact force of the concrete slurry.

[0060] According to one embodiment of the present invention, the flow guiding device 3 includes: at least one first pipe section 31, the flow guiding device 3 being connected to the bottom outlet of the hopper 1 through one end of the first pipe section 31; and a rotating pipe section 32, the rotating pipe section 32 including a connector 321 and a rotating member 322, the other end of the first pipe section 31 being connected to the connector 321, and the rotating member 322 and the connector 321 being coaxially rotatable.

[0061] In other words, such as Figures 2 to 6 As shown, the flow guiding device 3 includes a first pipe section 31 and a rotating pipe section 32. The flow guiding device 3 is connected to the bottom outlet of the hopper 1 through one end of the first pipe section 31. Preferably, the first pipe section 31 and the hopper 1 are connected by threads. The first pipe section 31 is 1.2-1.5 meters long, and there can be one or more sections. Preferably, one end of the first pipe section 31 is provided with an internal thread, and the other end is provided with an external thread. Multiple first pipe sections 31 can be spliced ​​together to change the height of the flow guiding device, thereby adapting to the jacking well pouring operation at different depths. The height adjustment range is large, which greatly meets the on-site construction requirements. The rotating pipe section 32 consists of a connector 321 and a rotating component 322. The rotating pipe section 32 is threadedly connected to the first pipe section 31 through the connector 321. The lower end of the connector 321 is an inward-curving flared opening, and the upper end of the rotating component 322 is an outward-flaring flared opening. The two work together to achieve 360-degree rotation. Preferably, a planar bearing can be provided between the inward-curving flared opening of the connector 321 and the outward-flaring flared opening of the rotating component 322 to better realize the rotation function.

[0062] According to one embodiment of the present invention, the flow guiding device 3 further includes: a first lower chute 33, one end of which is provided with a discharge part 331, the discharge part 331 being connected to the rotating member 322, and a sliding rod 332 extending along its length direction being provided at the bottom of the end of the first lower chute 33 away from the discharge part 331; a second lower chute 34, one end of which is connected to the other end of the first lower chute 33, and a connecting sleeve 341 being provided at the top of the end of the second lower chute 34 near the first lower chute 33, and the sliding rod 332 being able to slide freely through the connecting sleeve 341.

[0063] In other words, such as Figure 7As shown, the flow guiding device 3 also includes a first lower chute 33 and a second lower chute 34. The first lower chute 33 and the second lower chute 34 form the output section of the flow guiding device 3. One end of the first lower chute 33 is provided with a discharge section 331, which is connected to a rotating member 322. The first lower chute 33 rotates relative to the first pipe section 31 by the mutual rotation between the rotating member 322 and the connecting member 321. The first lower chute 33 and the second lower chute 34 are telescopically connected, specifically, the end of the first lower chute 33 away from the discharge section 331 is on top, and the end of the second lower chute 34 close to the first lower chute 33 is on the bottom, so that the second lower chute 34 can extend to below the first lower chute 33, or after extending, it can receive the concrete slurry guided by the first lower chute 33 and pour it into the jacking well through the other end of the second lower chute 34. Figure 8 , Figure 9 As shown, the bottom of the first lower chute 33 away from the discharge section 331 is provided with a slide rod 332 extending along its length direction, and the top of the second lower chute 34 near the first lower chute 33 is provided with a connecting sleeve 341. Through the cooperation of the slide rod 332 and the connecting sleeve 341, the first lower chute 33 and the second lower chute 34 are connected, and the second lower chute 34 can move freely along the slide rod 332.

[0064] Therefore, according to the present invention, a chute device for concrete pouring in a pipe jacking well can be moved by the free sliding of the hopper 1 along the suspension rod 2, saving time and effort; the height of the guide device 3 can be adjusted by the combination of multiple first pipe sections 31 to adapt to pipe jacking wells of different depths; the rotation between the rotating part 322 and the connecting part 321 realizes the rotation between the first lower chute 33 and the first pipe section 31, thereby achieving multi-angle pouring; the pouring radius can be changed by the telescopic movement between the first lower chute 33 and the second lower chute 34. Through the sliding of the hopper 1 and the suspension rod 2, the connection between the multiple first pipe sections 31, the rotation between the rotating part 322 and the connecting part 321, and the telescopic movement between the first lower chute 33 and the second lower chute 34, pouring without dead angles can be achieved in the pipe jacking well, and the chute device can be disassembled and assembled, realizing a one-time complete pouring operation.

[0065] According to one embodiment of the present invention, the flow guiding device 3 further includes a traction rope 35 and a winch 36. The bottom of the first lower chute 33 is provided with an ear plate 333, and the winch 36 is provided at the bottom of the second lower chute 34. One end of the traction rope 35 is connected to the ear plate 333, and the other end is connected to the winch 36. The second lower chute 34 can be freely extended and retracted relative to the first lower chute 33 by the winch 36 to raise and lower the traction rope 35.

[0066] In other words, such as Figure 8 , Figure 9As shown, the flow guiding device 3 also includes a traction rope 35 and a winch 36. A lug 333 is provided at the bottom of the first lower chute 33 for connecting one end of the traction rope 35, which is preferably a steel wire rope. The winch 36 is fixed to the bottom of the second lower chute 34 and connected to the other end of the traction rope 35. By hinged by the winch 36, the traction rope 35 is moved freely along the slide bar 332, allowing the second lower chute 34 to freely extend and retract relative to the first lower chute 33.

[0067] According to one embodiment of the present invention, the winch 36 includes: a support 361, a first gear 362, a rope shaft 363, a second gear 364, and a crank handle 365; the winch 36 is fixed to the bottom of the second lower chute 34 by the support 361, the rope shaft 363 is used to wind the traction rope 35, one end of the rope shaft 363 is connected to the central shaft of the first gear 362, the first gear 362 and the second gear 364 mesh and drive each other, and the crank handle 365 is connected to the central shaft of the second gear 364.

[0068] In other words, such as Figure 9 , Figure 10 As shown, the winch 36 consists of a support 361, a first gear 362, a rope shaft 363, a second gear 364, and a crank handle 365. The support 361 has an inverted U-shaped structure. The winch 36 is fixed to the bottom of the second lower chute 34 via the top of the support 361. The first gear 362 and the second gear 364 are arranged adjacent to each other within one side wall of the support 361, and they mesh to drive each other. One end of the rope shaft 363 is connected to the central shaft of the first gear 362, and the rope shaft 363 is used to wind the traction rope 35. The central shaft of the second gear 364 extends to the outside of the side wall of the support 361 and connects to the crank handle 365. Rotating the second gear 364 via the crank handle 365 drives the first gear 362 to rotate, thereby controlling the winding and unwinding of the traction rope 35 via the rope shaft 363.

[0069] In some specific embodiments of this utility model, the winch 36 further includes a limiting mechanism 366 and a third gear 367. The first gear 362 and the second gear 364 are disposed inside the side wall of the support 361, and the third gear 367 is coaxially arranged with the second gear 364 and respectively disposed on both sides of the same side wall of the support 361. The limiting mechanism 366 includes a locking block 3661, a push cap 3662, and a positioning pin 3663. One end of the positioning pin 3663 is disposed on the outside of the side wall of the support 361, and the other end of the positioning pin 3663 has a protruding limiting feature on its side wall. Positioning post 3664; Push cap 3662 is connected to and sleeved on positioning post 3663, and can rotate and slide freely along positioning post 3663. The locking block 3661 can be moved to the two teeth of the third gear 367 to prevent the third gear 367 from rotating. The middle area between push cap 3662 and locking block 3661 is provided with a sliding groove 3665 at the position opposite to the sliding trajectory of positioning post 3664. The sliding groove 3665 is provided with a stop groove 3666. Rotating push cap 3662 can fix positioning post 3664 in stop groove 3666.

[0070] In other words, such as Figure 10 , Figure 11 As shown, the winch 36 also includes a limiting mechanism 366 and a third gear 367. The first gear 362 and the second gear 364 are located within the side wall of the support 361 and mesh with each other for transmission. The third gear 367 is coaxially arranged with the second gear 364 and is located on the outer side of the side wall of the support 361. The limiting mechanism 366 consists of a locking block 3661, a push cap 3662, and a positioning post 3663. The limiting mechanism 366 is fixed to the outer side of the side wall of the support 361 by one end of the positioning post 3663. The locking block 3661 can move freely along the axial direction of the positioning post 3663 under the pushing and pulling of the push cap 3662. The other end of the positioning post 3663 has a protruding limiting post 3664 on its side wall. A groove 3665 is provided in the middle area between the push cap 3662 and the locking block 3661, opposite to the sliding trajectory of the limiting post 3664. The limiting post 3664 can move freely within the range of the groove 3665. The push cap 3662, locking block 3661, and groove 3665 are an integrated design and can rotate freely relative to the positioning post 3663. A stop groove 3666 is provided on the end of the groove 3665 near the push cap 3662. Rotating the push cap 3662 can fix the limiting post 3664 in the stop groove 3666. The locking block 3661 can extend between the two teeth of the third gear 367 to prevent the third gear 367 from rotating.

[0071] like Figure 13 As shown, at this time, the limiting post 3664 is fixed in the stop groove 3666, and the locking block 3661 is away from the third gear 367. The third gear 367 can rotate freely. By rotating the third gear 367 through the rocker handle 365, the second gear 364 and the first gear 362 are driven to rotate, thereby realizing the winding and unwinding of the winch 36 on the traction rope 35.

[0072] like Figure 14 As shown, at this time, the limiting post 3664 is located at the end of the slide 3665 away from the push cap 3662. At this time, the locking block 3661 is between the two teeth of the third gear 367, and the third gear 367 is restricted and cannot rotate. At this time, the traction rope 35 cannot be adjusted by the crank 365. The position of the second lower chute 34 relative to the first lower chute 33 is fixed, which better facilitates the second lower chute 34 to unload the concrete slurry to the designated position.

[0073] In some specific embodiments of this utility model, the winch 36 also includes a spring 368, which is located between the locking block 3661 and the positioning post 3663 and is sleeved on the positioning post 3663.

[0074] In other words, such as Figure 11 , Figure 12 As shown, the push cap 3662 and the locking block 3661 can slide freely along the positioning post 3663 under the action of external force. To better assist the movement of the push cap 3662, a spring 368 is placed between the locking block 3661 and the positioning post 3663, and the spring 368 is sleeved on the positioning post 3663. When no external force is applied, the push cap 3662 and the locking block 3661 slide outward under the action of the spring force. Under the restriction of the limiting post 3664, the end of the slide groove 3665 away from the push cap 3662 is just blocked by the limiting post 3664. At this time, the locking block 3661 is just between the two teeth of the third gear 367, preventing it from rotating, thereby locking the winch 36.

[0075] When the push cap 3662 is pressed by external force, the push cap 3662 drives the slide 3665 to move closer to the positioning post 3663. When the end of the slide 3665 close to the push cap 3662 contacts the limiting post 3664, the push cap 3662 is rotated so that the limiting post 3664 is fixed in the stop groove 3666. At this time, the push cap 3662 is released. Due to the restriction of the stop groove 3666, the spring is compressed and the locking block 3661 moves away from the third gear 367, and the third gear 367 can rotate freely.

[0076] In some specific embodiments of this utility model, the bottom sides of the rotating component 322 are provided with outwardly protruding lugs 3221, and the bushings 3222 are provided at the positions opposite to the lugs 3221; the discharge part 331 includes a bottom plate 3311 and a guard plate 3312, the sides of the guard plate 3312 are provided with ear holes 3313 for the lugs 3221 to pass through, and the guard plate 3312 is provided with an upwardly protruding positioning shaft 3314 at the position corresponding to the bushings 3222.

[0077] In other words, such as Figure 5As shown, the bottom of the rotating component 322 has outwardly protruding lugs 3221 on both sides, and the two lugs 3221 are arranged opposite each other, that is, coaxially. A bushing 3222 is provided opposite to the lugs 3221, and the bushing 3222 is arranged along the height direction of the rotating component 322.

[0078] like Figure 7 As shown, the discharge section 331 includes a base plate 3311 and a guard plate 3312. The base plate 3311 is connected to the second lower chute 34. The guard plate 3312 extends upward along the periphery of the base plate 3311. The guard plate 3312 has ear holes 3313 on both sides for the lugs 3221 to pass through. A positioning shaft 3314 protrudes upward on the guard plate 3312 at a position corresponding to the bushing 3222. The bushing 3222 of the rotating component 322 is fitted onto the positioning shaft 3314 of the discharge section 331. The two ear holes 3313 of the discharge section 331 are respectively fitted onto the two lugs 3221 of the rotating component 322. Through the cooperation of the ear holes 3313 with the lugs 3221 and the positioning shaft 3314 with the bushing 3222, the first lower chute 33 is securely suspended below the rotating component 322 and can rotate together with the rotating component 322.

[0079] In some specific embodiments of this utility model, an upper chute device 4 is also included. The upper chute device 4 includes an inclined chute plate 41. A limiting block 411 is provided at the bottom of the lower end of the chute plate 41. The limiting block 411 abuts against the edge of the hopper 1. A support leg 412 for support is provided at the bottom of the higher end of the chute plate 41.

[0080] In other words, such as Figure 1 , Figure 2 As shown, the chute device for concrete pouring in a jacking well according to this utility model includes an upper chute device 4. The upper chute device 4 includes an inclined chute plate 41, a limiting block 411, and a support leg 412. The limiting block 411 is fixed to the bottom of the lower end of the chute plate 41, preferably welded. The distance between the limiting block 411 and the end of the nearest chute plate 41 is approximately 30-50 cm, facilitating the discharge of concrete slurry to the middle of the hopper 1. The limiting block 411 abuts against the edge of the hopper 1. The bottom of the higher end of the chute plate 41 is provided with a support leg 412 for support, preferably welded. Through the support of the support leg 412 and the abutment between the limiting block 411 and the hopper 1, the stability of the upper chute device 4 is increased. The upper chute device 4 can receive the concrete slurry unloaded from the concrete truck and transport it into the hopper 1.

[0081] The beneficial effects of this utility model are as follows: A suspension rod 2 is fixedly installed at the top of the jacking shaft to form a stress point. The hopper 1 is suspended on the suspension rod 2 and its position inside the jacking shaft can be changed by moving it on the suspension rod 2. The guide device 3 is connected to the bottom outlet of the hopper 1, and the guide device 3 transports the concrete slurry into the jacking shaft through a curved guide channel. By suspending the hopper 1 and the guide device 3, the problem of completing the pouring in one go without disassembling the chute device is solved. By moving the position of the hopper 1 on the suspension rod 2, the problem of interference between the excavator and the chute device during construction is solved. The chute device for concrete pouring in the jacking shaft of this utility model can be suspended by the hopper 1 and can be moved on the suspension rod 2, solving the technical problem of inconvenient disassembly and relocation of the chute. Without disassembling the chute device, the pouring can be completed in one go, avoiding interference with the excavator construction, saving time and effort, and ensuring safety and reliability.

[0082] Of course, for those skilled in the art, the other structures and working principles of the chute device for concrete pouring in pipe jacking wells are understandable and achievable, and will not be described in detail in this utility model.

[0083] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A chute device for concrete pouring in a pipe jacking well, comprising a hopper (1), wherein the hopper (1) is formed as a conical channel with a larger upper section and a smaller lower section to facilitate the flow of concrete slurry, characterized in that, Also includes: At least one suspension rod (2), the suspension rod (2) forms a force support point by being fixed to the top of the jacking well, the hopper (1) is suspended on the suspension rod (2) and its position in the jacking well can be changed by moving on the suspension rod (2); The flow guiding device (3) is connected to the bottom outlet of the hopper (1). The flow guiding device (3) transports concrete slurry into the jacking well through a curved flow guiding channel. The height of the flow guiding device (3) can be adjusted to adapt to jacking wells of different depths. The length of the output section of the flow guiding device (3) can be adjusted to control the output landing point of the concrete slurry.

2. The chute device for concrete pouring in a pipe jacking well according to claim 1, characterized in that, The hopper (1) is provided with a sliding sleeve (10) to facilitate the passage of the suspension rod (2), and the sliding sleeve (10) and the suspension rod (2) can slide freely.

3. The chute device for concrete pouring in a pipe jacking well according to claim 1, characterized in that, The flow guiding device (3) includes: At least one first pipe section (31), the flow guiding device (3) is connected to the bottom outlet of the hopper (1) through one end of the first pipe section (31); Rotary pipe section (32), the rotary pipe section (32) includes a connector (321) and a rotating member (322), the other end of the first pipe section (31) is connected to the connector (321), and the rotating member (322) and the connector (321) can rotate coaxially.

4. A chute device for concrete pouring in a pipe jacking well according to claim 3, characterized in that, The flow guiding device (3) further includes: The first lower chute (33) has a discharge part (331) at one end, the discharge part (331) is connected to the rotating part (322), and the bottom of the first lower chute (33) away from the discharge part (331) has a slide rod (332) extending along its length direction. The second lower chute (34) has one end connected to the other end of the first lower chute (33). The top of the second lower chute (34) near the end of the first lower chute (33) is provided with a connecting sleeve (341), and the slide rod (332) can slide freely through the connecting sleeve (341).

5. A chute device for concrete pouring in a pipe jacking well according to claim 4, characterized in that, The flow guiding device (3) also includes a traction rope (35) and a winch (36). The bottom of the first lower chute (33) is provided with an ear plate (333). The winch (36) is located at the bottom of the second lower chute (34). One end of the traction rope (35) is connected to the ear plate (333), and the other end is connected to the winch (36). The traction rope (35) is wound up and down by the winch (36) to realize the free extension and retraction of the second lower chute (34) relative to the first lower chute (33).

6. A chute device for concrete pouring in a pipe jacking well according to claim 5, characterized in that, The winch (36) includes: a support (361), a first gear (362), a rope shaft (363), a second gear (364), and a crank handle (365); the winch (36) is fixed to the bottom of the second lower chute (34) by the support (361), the rope shaft (363) is used to wind the traction rope (35), one end of the rope shaft (363) is connected to the central shaft of the first gear (362), the first gear (362) meshes with the second gear (364) for transmission, and a crank handle (365) is connected to the central shaft of the second gear (364).

7. A chute device for concrete pouring in a pipe jacking well according to claim 6, characterized in that, The winch (36) further includes a limiting mechanism (366) and a third gear (367). The first gear (362) and the second gear (364) are located inside the side wall of the support (361). The third gear (367) is coaxially arranged with the second gear (364) and is respectively located on both sides of the same side wall of the support (361). The limiting mechanism (366) includes a locking block (3661), a push cap (3662), and a positioning post (3663). One end of the positioning post (3663) is located on the outside of the side wall of the support (361), and the other end of the positioning post (3663) has a protruding limiting post (3664) on its side wall. The push cap (3662) is connected to the locking block (3661) and sleeved on the positioning post (3663). It can rotate and slide freely along the positioning post (3663). The locking block (3661) can be moved to the two teeth of the third gear (367) to prevent the third gear (367) from rotating. The middle area between the push cap (3662) and the locking block (3661) is provided with a sliding groove (3665) at the position opposite to the sliding trajectory of the limiting post (3664). The sliding groove (3665) is provided with a stop groove (3666). Rotating the push cap (3662) can fix the limiting post (3664) in the stop groove (3666).

8. A chute device for concrete pouring in a jacking well according to claim 7, characterized in that, The winch (36) also includes a spring (368), which is located between the locking block (3661) and the positioning post (3663) and is sleeved on the positioning post (3663).

9. A chute device for concrete pouring in a pipe jacking well according to claim 4, characterized in that, The rotating part (322) has outwardly protruding lugs (3221) on both sides of its bottom, and a bushing (3222) is provided at the position opposite to the lugs (3221); the discharge part (331) includes a bottom plate (3311) and a guard plate (3312), the guard plate (3312) has ear holes (3313) on both sides for the lugs (3221) to pass through, and an upwardly protruding positioning shaft (3314) is provided on the guard plate (3312) at the position corresponding to the bushing (3222).

10. A chute device for concrete pouring in a jacking well according to claim 1, characterized in that, It also includes an upper chute device (4), which includes an inclined chute plate (41). A limiting block (411) is provided at the bottom of the lower end of the chute plate (41), and the limiting block (411) abuts against the edge of the hopper (1). A support leg (412) for support is provided at the bottom of the higher end of the chute plate (41).

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