A trench in-pipe taking and placing device

Abstract

This utility model relates to a device for picking up and placing pipes in a trench, including a rectangular support frame, two movable legs, and two supporting legs. The two movable legs and two supporting legs are respectively fixed below the four corners of the support frame. The lower end of the movable legs is provided with a first movable wheel, and the lower end of the supporting legs is provided with a second movable wheel. The lower surface of the support frame is provided with at least two sets of lifting parts, which are arranged at intervals along the length of the support frame. The lifting parts include a first pulley, a second pulley, a lifting bar, and a hook. The lower surface of the support frame is provided with a connecting rod and a hook in sequence along the width direction. The first pulley is rotatably connected to the lower surface of the support frame and is located between the connecting rod and the hook. The second pulley is rotatably connected to the lower end of the connecting rod. The central axis of the first pulley and the central axis of the second pulley are both arranged along the length of the support frame. One end of the lifting bar is hooked on the hook, and the other end of the lifting bar passes over the first pulley and is wrapped around the second pulley.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline installation, specifically to a device for picking up and placing pipelines in a trench. Background Technology

[0002] Currently, when pipelines are installed and transported in trenches, multiple people are often needed to work with a crane to lower the pipelines into the trenches, resulting in very low efficiency. Utility Model Content

[0003] In order to solve one or more technical problems existing in the prior art, this utility model provides a device for picking up and placing pipes in a trench.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: This utility model provides a device for picking up and placing pipes in a trench, including a rectangular support frame, two movable legs and two supporting legs, with the two movable legs and two supporting legs respectively fixed below the four corners of the support frame; the lower end of each movable leg is provided with a first movable wheel, and the lower end of each supporting leg is provided with a second movable wheel; the lower surface of the support frame is provided with at least two sets of lifting parts, which are arranged at intervals along the length direction of the support frame; each lifting part includes a first pulley, a second pulley, a lifting bar and a hook, and the lower surface of the support frame is provided with a connecting rod and a hook in sequence along the width direction. The first pulley is rotatably connected to the lower surface of the support frame and is located between the connecting rod and the hook, and the second pulley is rotatably connected to the lower end of the connecting rod. The central axis of the first pulley and the central axis of the second pulley are both arranged along the length direction of the support frame. One end of the lifting bar is hooked on the hook, and the other end of the lifting bar passes over the first pulley and is wrapped around the second pulley.

[0005] The beneficial effects of this utility model are as follows: The trench pipe retrieval and placement device of this utility model, by setting up a lifting part, can pass a lifting bar through the pipe, and hang one end of the lifting bar on a hook, and connect the other end to a second pulley. By rotating the second pulley, the pipe can be lifted up by the lifting bar, which can save time and effort. Then, the entire trench pipe retrieval and placement device can be moved to the top of the trench, and the second pulley can be rotated to lower the pipe into the trench.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the hook is positioned facing the side of the second pulley.

[0008] The advantage of adopting the above-mentioned further solution is that it makes it easier to attach one end of the lifting bar to the hook.

[0009] Furthermore, the lower surface of the support frame is provided with a screw and nut transmission mechanism, and the upper end of the connecting rod is connected to the lower surface of the support frame through the screw and nut transmission mechanism and can move along the length direction of the support frame;

[0010] The lower surface of the support frame is provided with two guide rail plates, which extend along the length of the support frame. The first pulley and the hook are slidably connected to the two guide rail plates through a sliding sleeve.

[0011] The beneficial effect of adopting the above-mentioned further solution is that by setting a screw and nut transmission mechanism, the connecting rod can be driven to move along the length of the support frame as needed, and the second pulley and hook can adjust their positions according to the moving position of the connecting rod.

[0012] Furthermore, the lower end of the connecting rod is provided with two spaced-apart limiting plates, one of which has a limiting hole. A drive rocker arm is fixedly connected to the middle of the second pulley. The drive rocker arm passes through the limiting hole and is located outside the limiting plate. A limiting block is provided on the drive rocker arm, and the limiting block is located outside the limiting hole. A limiting sleeve is movably fitted on the limiting block, and the limiting sleeve can be inserted into the limiting hole to engage and fix the limiting block with the limiting plate.

[0013] The beneficial effects of adopting the above-mentioned further solution are: by setting a limiting block and a limiting sleeve, when in use, the limiting sleeve can be removed from the limiting hole, and the first pulley can be rotated by the drive rocker; when not in use, the limiting sleeve can be placed on the limiting block and locked into the limiting hole for limiting, so as to prevent the drive rocker from rotating without restriction.

[0014] Furthermore, a support rod is movably connected to the side of the support leg near the lower end and away from the moving leg via a support shaft. The side of the support rod away from the support leg is provided with multiple support wheels, which are arranged sequentially at intervals along the length of the support rod. The support leg can rotate to a horizontal position and extends toward the side away from the moving leg.

[0015] The support rod has a groove along its length, the support shaft is fixedly connected to the support leg perpendicularly, and the support shaft is movably inserted into the groove and can move along the groove.

[0016] The beneficial effect of adopting the above-mentioned further solution is that, by setting up support rods, when encountering a wider trench, the support rods can be rotated to a horizontal state and used to support the trench across, and then the support frame can be moved to the top of the trench.

[0017] Furthermore, a roller is provided at one end of the support shaft located within the slide groove, and the roller is capable of rolling along the slide groove.

[0018] The beneficial effect of adopting the above-mentioned further solution is that by setting rollers, the support shaft can move more smoothly along the slide.

[0019] Furthermore, when the support rod rotates to a horizontal position, the height of the plurality of support wheels is the same as the height of the second movable wheel.

[0020] Furthermore, a portion of the lower end face of the support leg extends to form a connecting protrusion, the support shaft is fixed on the connecting protrusion, and the second movable wheel is mounted on another portion of the lower end face of the support leg.

[0021] Furthermore, a fixing plate is provided on the side wall of the support leg, and a vertically arranged support screw is threaded onto the fixing plate, with the support plate fixed to the lower end of the support screw.

[0022] Furthermore, the first and second moving wheels are at the same height. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the trench-mounted pipe loading and unloading device of this utility model. Figure 1 ;

[0024] Figure 2 This is a three-dimensional structural diagram of the trench-mounted pipe loading and unloading device of this utility model. Figure 2 ;

[0025] Figure 3 This is a cross-sectional structural diagram of the cooperation between the support rod and the connecting rod of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the second pulley, the limiting plate, and the drive rocker arm of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Support frame;

[0029] 2. Moving leg; 21. First moving wheel;

[0030] 3. Support leg; 31. Second moving wheel; 32. Support rod; 33. Support shaft; 34. Slide groove; 35. Connecting protrusion; 36. Fixing plate; 37. Support screw; 38. Support plate; 39. Storage slot; 390. Support wheel; 391. Connecting column; 392. Lead screw rocker; 393. Limit bolt; 394. Lead screw; 395. Sliding sleeve; 396. Guide rail plate;

[0031] 4. First pulley; 41. Second pulley; 42. Connecting rod; 43. Limiting plate; 44. Limiting hole; 45. Drive rocker arm; 46. Limiting block; 47. Limiting sleeve;

[0032] 5. Hook; 6. Lifting bar; 61. Rope loop. Detailed Implementation

[0033] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0034] Example 1

[0035] like Figures 1-4 As shown, a trench pipe handling device according to this embodiment includes a rectangular support frame 1, two movable legs 2, and two support legs 3. The two movable legs 2 and the two support legs 3 are respectively fixed below the four corners of the support frame 1. The lower end of the movable leg 2 is provided with a first movable wheel 21, and the lower end of the support leg 3 is provided with a second movable wheel 31. The lower surface of the support frame 1 is provided with at least two sets of lifting parts, which are arranged at intervals along the length of the support frame 1. The lifting part includes a first pulley 4, a second pulley 41, a lifting bar 6, and a hook. The lower surface of the support frame 1 is provided with a connecting rod 42 and a hook 5 in sequence along the width direction. The first pulley 4 is rotatably connected to the lower surface of the support frame 1 and is located between the connecting rod 42 and the hook 5. The second pulley 41 is rotatably connected to the lower end of the connecting rod 42. The central axis of the first pulley 4 and the central axis of the second pulley 41 are both arranged along the length direction of the support frame 1. One end of the lifting bar 6 is hooked on the hook 5, and the other end of the lifting bar 6 passes over the first pulley 4 and is wrapped around the second pulley 41.

[0036] Optional, such as Figure 1 As shown, one end of the lifting bar 6 can be fixed with a rope loop 61, which can be used to attach it to the hook 5. The other end of the lifting bar 6 can be glued or hung on the second pulley 41, as long as it does not affect the normal rotation of the second pulley 41.

[0037] like Figure 1 As shown, preferably, the hook 5 is arranged facing the second pulley 41. This facilitates attaching one end of the lifting bar to the hook.

[0038] like Figure 1 and Figure 2 As shown, in one optional embodiment, a fixing plate 36 is provided on the side wall of the support leg 3, and a vertically arranged support screw 37 is threaded onto the fixing plate 36, and a support plate 38 is fixed to the lower end of the support screw 37.

[0039] Specifically, the first movable wheel 21 and the second movable wheel 31 are at the same height. A connecting post 391 can be fixed to the lower end of the support leg 3 to connect the second movable wheel 31. The width and structural strength of the lifting bar 6 can be set as needed, and the lifting bar 6 can preferably be made of high-strength and tough nylon fabric strips, etc. In this embodiment, both the first movable wheel 21 and the second movable wheel 31 are wheels with a brake self-locking mechanism.

[0040] This embodiment of a trench pipe retrieval and placement device, by setting a lifting part, allows a lifting bar to pass through the pipe, with one end of the lifting bar hooked on a hook and the other end connected to a second pulley. By rotating the second pulley, the pipe can be lifted using the lifting bar, which saves time and effort. Then, the entire trench pipe retrieval and placement device is moved above the trench, and the second pulley is rotated to lower the pipe into the trench.

[0041] Example 2

[0042] Based on Embodiment 1, this embodiment provides a preferred solution for the connecting rod 42. For example... Figure 1 and Figure 2 As shown, the lower surface of the support frame 1 is provided with a screw and nut transmission mechanism. The upper end of the connecting rod 42 is connected to the lower surface of the support frame 1 through the screw and nut transmission mechanism and can move along the length direction of the support frame 1. The lower surface of the support frame 1 is provided with two guide rail plates 396, which extend along the length direction of the support frame 1. The first pulley 4 and the hook 5 are slidably connected to the two guide rail plates 396 through a sliding sleeve 395. By setting the screw and nut transmission mechanism, the connecting rod can be driven to move along the length direction of the support frame as needed. The second pulley and the hook can adjust their positions according to the movement position of the connecting rod.

[0043] Specifically, such as Figure 1 and Figure 2As shown, the lead screw and nut transmission mechanism includes a lead screw 394. The lower surface of the support frame 1 is provided with a slide rail. The lead screw 394 is arranged parallel to each other below the slide rail. The upper part of the connecting rod 42 is threadedly connected to the lead screw 394. The upper end of the connecting rod 42 is slidably connected to the slide rail. When the lead screw 394 is rotated, the connecting rod 42 can be driven to move along the slide rail, that is, to reciprocate along the length direction of the support frame 1. The two ends of the lead screw 394 are rotatably connected to the two ends of the support frame 1 along its length via bearings, with one end extending from one end of the support frame 1. The transmission connection of the lead screw 394 can be achieved by directly mounting a lead screw rocker 392 to one end of the lead screw 394, using the rocker 392 to drive the lead screw 394 to rotate. Alternatively, a driven wheel can be coaxially fixed to one end of the lead screw 394, and the rocker 392 can be rotatably connected to the support leg 3. A fixed drive wheel is fitted onto the rocker 392, and a drive belt is fitted between the driven wheel and the drive wheel. The rotation of the rocker 392 drives the drive belt, which in turn drives the driven wheel and the lead screw 394 to rotate, providing power for the rotation of the lead screw 394. The first pulley 4 and the hook 5 can move to their respective positions along their respective guide plates 396 according to the position of the connecting rod 42.

[0044] In this embodiment, the trench pipe placement and removal device can be used to adjust the position of the connecting rod 42 by rotating the lead screw 394, thereby adjusting the front and rear position of the pipe inside the lifting bar 6, so that the lowered pipe can be aligned with the previous pipe, making it more convenient and easy to use.

[0045] Example 3

[0046] Based on Embodiment 1 or Embodiment 2, this embodiment provides a preferred assembly scheme for the second pulley 41. For example... Figure 1 , Figure 2 and Figure 4 As shown, the lower end of the connecting rod 42 is provided with two spaced-apart limiting plates 43. One of the limiting plates 43 has a limiting hole 44. A driving rocker arm 45 is fixedly connected to the middle of the second pulley 41. The driving rocker arm 45 passes through the limiting hole 44 and is located outside the limiting plate 43. A limiting block 46 is provided on the driving rocker arm 45, and the limiting block 46 is located outside the limiting hole 44. A limiting sleeve 47 is movably fitted on the limiting block 46. The limiting sleeve 47 can be inserted into the limiting hole 44 to lock the limiting block 46 and the limiting plate 43 in place. By setting the limiting block and the limiting sleeve, when in use, the limiting sleeve can be removed from the limiting hole, and the first pulley can be rotated using the driving rocker arm. When not in use, the limiting sleeve can be fitted onto the limiting block and inserted into the limiting hole to limit the rotation of the driving rocker arm.

[0047] Example 4

[0048] Based on any of the above embodiments, this embodiment provides a preferred structure for the support leg. For example... Figures 1-3 As shown, in this embodiment, the support leg 3, near its lower end and on the side facing away from the movable leg 2, is movably connected to a support rod 32 via a support shaft 33. The support rod 32, on the side facing away from the support leg 3, is equipped with multiple support wheels 390, which are arranged at intervals along the length of the support rod 32. The support leg 3 can rotate to a horizontal position and extends towards the side facing away from the movable leg 2. The support rod 32 has a groove 34 along its length. The support shaft 33 is vertically fixed to the support leg 3 and is movably inserted into the groove 34, allowing it to move along the groove 34. By providing the support rod, when encountering a wide trench, the support rod can be rotated to a horizontal position and used to support the trench, allowing the support frame to be moved above the trench. The support wheels 390 can be wheels with a self-locking braking mechanism.

[0049] Optionally, a storage groove 39 for accommodating the support rod 32 is provided on one side wall of the support leg 3. When the support rod 32 is flipped and folded to one side of the support leg 3, it can be stored in the storage groove 39. A limiting ear plate can be provided at the upper end of one side wall of the support leg 3. The limiting ear plate is internally threaded with a limiting bolt 393. The limiting bolt 393 extends along the length of the support frame 1. When the support rod 32 is flipped and stored in the storage groove 39, the limiting bolt 393 can be rotated to abut against the support rod 32, thus limiting the support rod 32 within the storage groove 39 and preventing it from coming out of the storage groove 39.

[0050] Preferably, one end of the support shaft 33 located within the slide groove 34 is equipped with a roller, which can roll along the slide groove 34. By providing the roller, the support shaft can move more smoothly along the slide groove.

[0051] like Figures 1-3 As shown, specifically, when the support rod 32 rotates to a horizontal position, the height of the plurality of support wheels 390 is the same as the height of the second moving wheel 31.

[0052] like Figures 1-3 As shown, specifically, a portion of the lower end face of the support leg 3 extends to form a connecting protrusion 35, the support shaft 33 is fixed on the connecting protrusion 35, and the second movable wheel 31 is mounted on another portion of the lower end face of the support leg 3.

[0053] In this embodiment, the trench pipe retrieval and placement device is used by first moving the first moving wheel 21 and the second moving wheel 31 to move the entire device above the pipe that has not yet been lowered into the trench. Then, one end of the lifting bar 6 is connected to a rope loop and passed through the bottom of the pipe. After passing through the rope loop, it is hung on the hook 5. Then, the second pulley 41 can be driven to lift the pipe, thereby lifting both the front and rear ends of the pipe. After the pipe is lifted, the entire support frame 1 and the lifted pipe are moved to one side of the trench. At this time, the support rod 32 can be lowered to a horizontal position. The length of the support rod 32 allows it to span across both sides of the trench. After the support rod 32 is lowered, the support wheel 390 provides support. The support wheel 390 can be locked using its self-locking structure. Then, the support frame 1 is moved by the first moving wheel 21 and the second moving wheel 31, which are in contact with the ground. The support leg can move within the slide 34 using the support shaft 33, allowing the support frame 1 to move from one side of the trench to the other. This moves the support frame 2 directly above the trench, and then the second pulley 41 is driven to lower the pipe. Then, the lifting bar 6 is pulled out. In actual use, the pipe is mostly placed above the soil layer, even after it is lowered into the trench. This allows the lifting bar and rope to easily pass through the bottom of the pipe. The lifted pipe is equivalent to a movable pulley, allowing the second pulley 41 to rotate easily. During the pipe lowering process, the screw nut transmission mechanism can be used to drive the pipe to move back and forth, facilitating alignment with the previous pipe. By cooperating with multiple devices and personnel, pipes can be lowered continuously, avoiding the problem of slow pipe lowering with a single crane.

[0054] In the description of this utility model, it should be understood that the terms "center", "length", "width", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A device for retrieving and placing pipes in a trench, characterized in that, The device includes a rectangular support frame, two movable legs, and two supporting legs, with the movable legs and supporting legs fixed at the four corners of the support frame. Each movable leg has a first movable wheel at its lower end, and each supporting leg has a second movable wheel at its lower end. The lower surface of the support frame has at least two sets of lifting sections, spaced apart along the length of the support frame. Each lifting section includes a first pulley, a second pulley, a lifting bar, and a hook. The lower surface of the support frame has a connecting rod and a hook arranged sequentially along its width. The first pulley is rotatably connected to the lower surface of the support frame and located between the connecting rod and the hook. The second pulley is rotatably connected to the lower end of the connecting rod. The central axes of both the first and second pulleys extend along the length of the support frame. One end of the lifting bar is hooked onto the hook, and the other end of the lifting bar passes over the first pulley and wraps around the second pulley.

2. The trench pipe placement and removal device according to claim 1, characterized in that, The hook is positioned facing the side of the second pulley.

3. The trench pipe placement and removal device according to claim 1, characterized in that, The lower surface of the support frame is provided with a screw and nut transmission mechanism. The upper end of the connecting rod is connected to the lower surface of the support frame through the screw and nut transmission mechanism and can move along the length direction of the support frame. The lower surface of the support frame is provided with two guide rail plates, which extend along the length of the support frame. The first pulley and the hook are slidably connected to the two guide rail plates through a sliding sleeve.

4. The trench pipe placement and removal device according to claim 1, characterized in that, The lower end of the connecting rod is provided with two spaced-apart limiting plates. One of the limiting plates has a limiting hole. A drive rocker is fixedly connected to the middle of the second pulley. The drive rocker passes through the limiting hole and is located outside the limiting plate. A limiting block is provided on the drive rocker, and the limiting block is located outside the limiting hole. A limiting sleeve is movably sleeved on the limiting block. The limiting sleeve can be inserted into the limiting hole to lock the limiting block and the limiting plate in place.

5. The trench pipe placement and removal device according to claim 1, characterized in that, The support leg is movably connected to a support rod via a support shaft on the side near the lower end and away from the moving leg. The support rod is provided with multiple support wheels on the side away from the support leg. The multiple support wheels are arranged at intervals along the length of the support rod. The support leg can be rotated to a horizontal position and extends toward the side away from the moving leg. The support rod has a groove along its length, the support shaft is fixedly connected to the support leg perpendicularly, and the support shaft is movably inserted into the groove and can move along the groove.

6. The trench pipe placement and removal device according to claim 5, characterized in that, The support shaft has a roller at one end located inside the slide groove, and the roller can roll along the slide groove.

7. The trench pipe placement and removal device according to claim 5, characterized in that, When the support rod rotates to a horizontal position, the height of the plurality of support wheels is the same as the height of the second movable wheel.

8. The trench pipe placement and removal device according to claim 5, characterized in that, A portion of the lower end face of the support leg extends to form a connecting protrusion, the support shaft is fixed on the connecting protrusion, and the second movable wheel is mounted on another portion of the lower end face of the support leg.

9. The trench pipe placement and removal device according to claim 1, characterized in that, The side wall of the support leg is also provided with a fixing plate, and a vertically arranged support screw is threaded onto the fixing plate. The lower end of the support screw is fixed with the support plate.

10. The trench pipe placement and removal device according to claim 1, characterized in that, The first and second moving wheels are at the same height.

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