Lifting device for laying rainwater pipeline

Abstract

The invention provides a lifting device for rainwater pipeline laying, which comprises a lifting appliance main body, the lifting appliance main body is provided with an upper lifting appliance beam and a lower lifting appliance beam which are parallel to each other, and a connecting beam is fixedly arranged between one end of the upper lifting appliance beam and one end of the lower lifting appliance beam; a supporting mechanism is arranged at the bottom of the lower lifting appliance beam and used for providing upward supporting for the inner side wall of a rainwater pipeline placed on the top of the lower lifting appliance beam. Pressing mechanisms are symmetrically arranged on the two sides of the bottom of the upper lifting appliance beam, a sliding block is arranged on the upper lifting appliance beam in a sliding mode in the vertical direction, and a lifting plate is arranged on the top of the sliding block; when the sliding block moves upwards or downwards in the upper lifting appliance beam in the vertical direction, the pressing mechanism is driven to swing downwards or upwards to press or release the outer side wall of the rainwater pipeline placed on the top of the lower lifting appliance beam. The pipeline stability in the hoisting process can be improved, potential safety hazards are reduced, and pipeline abrasion is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline laying, and in particular relates to a lifting device used for laying rainwater pipelines. Background Art

[0002] During the installation of rainwater pipes, a lifting device is required to lift and move the rainwater pipes.

[0003] In the prior art, a Chinese invention patent with authorization announcement number CN116374802B discloses a lifting device for laying municipal culverts. When lifting the culvert, the lifting section is inserted into the culvert and drives the lifting body as a whole to move upward in the vertical direction. Under the action of the positioning support rod, the axes of the lifting section and the culvert gradually approach parallelism. When the four positioning support rods are in contact with the inner wall surface of the culvert, the axes of the lifting section and the culvert are parallel, so that the lifting section and the culvert are in surface contact, thereby making the lifting process more stable and reducing the wear on the culvert. It cannot be ignored that when lifting the pipeline, the positioning support rod applies an upward force to the pipeline under the action of the tension spring. The tension of the tension springs in different positioning support mechanisms on the positioning support rod inevitably has deviations, so that the pipeline is subjected to different upward forces in the radial direction during the lifting process, which affects the stability of the pipeline during the lifting process and slips off the lifting device during the lifting process, posing a safety hazard.

[0004] Therefore, it is necessary to design a lifting device for laying rainwater pipes that can improve the stability of the pipes during the lifting process, reduce safety hazards and reduce wear on the pipes to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a lifting device for laying rainwater pipes, which can improve the stability of the pipes during the lifting process, reduce safety hazards and reduce wear on the pipes.

[0006] The technical solution of the present invention is: a lifting device for laying rainwater pipes, comprising a lifting device body, the lifting device body having an upper lifting device beam and a lower lifting device beam which are parallel to each other, a connecting beam being fixedly arranged between one end of the upper lifting device beam and the lower lifting device beam; a supporting mechanism being arranged at the bottom of the lower lifting device beam, the supporting mechanism being used for providing upward support to the inner wall of the rainwater pipe placed on the top of the lower lifting device beam; clamping mechanisms being symmetrically arranged at both sides of the bottom of the upper lifting device beam, a slider being arranged on the upper lifting device beam for sliding in the vertical direction, a hanging plate being arranged on the top of the slider; when the slider moves in the vertical direction or downward inside the upper lifting device beam, the clamping mechanism is driven to swing downward or upward to press down or release the outer wall of the rainwater pipe placed on the top of the lower lifting device beam.

[0007] The clamping mechanism has a pressure roller parallel to the lower hanger beam, and pressure arms are rotatably provided at both ends of the pressure roller. One end of the pressure arm facing away from the pressure roller is hinged to the side of the upper hanger beam, and a connecting rod is provided between the two pressure arms. Two parallel push-pull connecting rods are symmetrically provided on the connecting rod, and one end of the push-pull connecting rod facing away from the connecting rod is hinged to the bottom end of the slider.

[0008] An upper limit plate is fixedly provided on the upper end of the sliding block above the upper sling beam, and the sling plate is fixedly provided on the upper limit plate. Lower limit plates are fixedly provided on both sides of the lower end of the sliding block below the upper sling beam, and elastic support is provided between the lower limit plates and the bottom of the upper sling beam.

[0009] At least two longitudinal guide rods corresponding to the lower limit plate are arranged at the bottom end of the upper hanger beam, and the lower limit plate is slidably connected to the longitudinal guide rods. A return spring is sleeved on the outer side of the longitudinal guide rod between the lower limit plate and the upper hanger beam, and the return spring is elastically supported between the lower limit plate and the bottom of the upper hanger beam, and a baffle is fixedly arranged at the bottom end of the longitudinal guide rod.

[0010] The supporting mechanism comprises two bottom columns arranged at the bottom of the lower hanger beam, a connecting groove is fixedly provided at the bottom of the bottom column, two supporting arms are provided inside the connecting groove, and rollers parallel to the lower hanger beam are fixedly provided at the ends of the supporting arms, and the supporting rollers are abutted against the inner wall of the rainwater pipe placed on the top of the lower hanger beam.

[0011] One end of the support arm is rotatably connected to the connecting groove, a connecting plate is arranged on one side of the support arm, and a tension spring is arranged between the connecting plate and the bottom of the lower hanger beam.

[0012] A transmission gear is fixedly arranged on one end of the support arm close to the connecting groove, and the transmission gear is rotatably arranged inside the connecting groove. The two support arms connected in the connecting groove are symmetrical, and the two transmission gears inside the connecting groove are meshed with each other.

[0013] A pad is provided on the top of the lower hanger beam, and the top of the pad is an arc-shaped surface matching the inner wall of the rainwater pipe.

[0014] Grooves are evenly formed on the top of the pad, and the grooves are perpendicular to the extending direction of the pad.

[0015] A counterweight block is arranged on one end of the upper sling beam away from the connecting beam.

[0016] Beneficial effects of the present invention:

[0017] (1) In the present invention, the support mechanism provides support for the rainwater pipe inside, thereby increasing the support area for the inner wall of the rainwater pipe, improving the stability of the lifting, and reducing the wear on the rainwater pipe;

[0018] (2) When the lifting device is lifted upward by the hanging plate, the hanging plate drives the slider to move upward relative to the lifting device body. During the upward movement of the lifting device body, the clamping mechanism is driven to press down on the top of the outer wall of the rainwater pipe placed on the top of the lower hanging device beam. The clamping mechanism cooperates with the lower hanging device beam and the supporting mechanism to clamp the rainwater pipe on both sides of the side wall, thereby further improving the stability of the rainwater pipe during the lifting process, avoiding slipping from the lifting device during lifting, and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the structural schematic diagrams of the lifting device used for laying rainwater pipes in the present invention.

[0020] Figure 2 This is the second structural schematic diagram of the lifting device used for laying rainwater pipes in the present invention.

[0021] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0022] Figure 4 This is the third structural schematic diagram of the lifting device used for laying rainwater pipes in the present invention.

[0023] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0024] Figure 6 It is a schematic diagram of the use status of the lifting device used for laying rainwater pipes in the present invention. DETAILED DESCRIPTION

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to be any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limitations.

[0026] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figures 1 to 6 As shown, a lifting device 100 for laying rainwater pipes comprises a lifting device body 1, wherein the lifting device body 1 has an upper lifting device beam 12 and a lower lifting device beam 13 which are parallel to each other, and a connecting beam 14 is fixedly arranged between one end of the upper lifting device beam 12 and the lower lifting device beam 13; a supporting mechanism 3 is arranged at the bottom of the lower lifting device beam 13, and the supporting mechanism 3 is used to provide upward support for the inner wall of the rainwater pipe 200 placed on the top of the lower lifting device beam 13; a clamping mechanism 4 is symmetrically arranged on both sides of the bottom of the upper lifting device beam 12, and a slider 2 is arranged on the upper lifting device beam 12 so as to slide in the vertical direction, and a slideway matching with the slider 2 is provided inside the upper lifting device beam 12, and the slider 2 is arranged inside the slideway for sliding in the vertical direction, and a hanging plate 21 is arranged on the top of the slider 2; when the slider 2 moves in the vertical direction or downward inside the upper lifting device beam 12, it drives the clamping mechanism 4 to swing downward or upward The support mechanism 3 provides support for the rainwater pipe 200 inside, increases the support area for the inner wall of the rainwater pipe 200, improves the stability of the lifting, and reduces the wear on the rainwater pipe 200. At the same time, when the lifting device is lifted upward by the hanging plate 21, the hanging plate 21 drives the slider 2 to move upward relative to the hanging device body 1. During the upward movement of the hanging device body 1, the clamping mechanism 4 is driven to press down on the top of the outer wall of the rainwater pipe 200 placed on the top of the lower hanging device beam 13. The clamping mechanism 4 cooperates with the lower hanging device beam 13 and the support mechanism 3 to clamp the rainwater pipe 200 on both sides of the inner and outer sides of the side wall, further improving the stability of the rainwater pipe 200 during the lifting process, avoiding slipping from the lifting device during lifting, and reducing safety hazards.

[0028] In some embodiments, as a specific implementation of the clamping mechanism 4, the clamping mechanism 4 has a pressure roller 41 parallel to the lower sling beam 13, and pressure arms 42 are rotatably provided at both ends of the pressure roller 41. One end of the pressure arm 42 away from the pressure roller 41 is hinged to the side of the upper sling beam 12, and a connecting rod 43 is provided between the two pressure arms 42. Two parallel push-pull connecting rods 44 are symmetrically provided on the connecting rod 43. One end of the push-pull connecting rod 44 away from the connecting rod 43 is hinged to the bottom end of the slider 2. When lifting, the sling body 1 and the rainwater pipe 2 are connected. 00, the hanging plate 21 first drives the slider 2 to move upward relative to the upper hanger beam 12, and when the slider 2 moves upward, it drives the push-pull connecting rod 44 to move upward, and the push-pull connecting rod 44 pulls the pressure arm 42, and the pressure arm 42 swings downward, so that the pressure roller 41 is pressed against the outer wall of the rainwater pipe 200; when lowering, the hanging plate 21 drives the slider 2 to move downward relative to the upper hanger beam 12, and when the slider 2 moves downward, it drives the push-pull connecting rod 44 to move downward, and the push-pull connecting rod 44 pushes the pressure arm 42, and the pressure arm 42 swings upward to reset, so that the pressure roller 41 is away from the outer wall of the rainwater pipe 200 and released.

[0029] In some embodiments, an upper limit plate 22 is fixedly provided on the upper end of the slider 2 above the upper hanger beam 12, and the upper limit plate 22 prevents the slider 2 from sliding down from the upper hanger beam 12. A hanging plate 21 is fixedly provided on the upper limit plate 22, and lower limit plates 23 are fixedly provided on both sides of the lower end of the slider 2 below the upper hanger beam 12, and the lower limit plates 23 prevent the slider 2 from sliding upward from the upper hanger beam 12. There is an elastic support between the lower limit plate 23 and the bottom of the upper hanger beam 12, and the elastic support is compressed during lifting and reset after lowering. The elastic support is beneficial for the slider 2 to move downward quickly relative to the upper hanger beam 12 after lowering, thereby quickly driving the pressure roller 41 away from the outer wall of the rainwater pipe 200 to release it.

[0030] In some embodiments, Figure 3 As shown, at least two longitudinal guide rods 24 corresponding to the lower limit plate 23 are arranged at the bottom end of the upper sling beam 12, and the lower limit plate 23 is slidably connected with the longitudinal guide rod 24. A return spring 25 is sleeved on the outer side of the longitudinal guide rod 24 between the lower limit plate 23 and the upper sling beam 12. The return spring 25 is elastically supported between the lower limit plate 23 and the bottom of the upper sling beam 12, and a baffle 26 is fixedly arranged at the bottom end of the longitudinal guide rod 24; during lifting, due to the gravity of the rainwater pipe 200, the rainwater pipe 200 is lifted. On the hanger body 1, the hanger body 1 moves downward relative to the slider 2, the return spring 25 is compressed, and the pressure roller 41 presses against the outer wall of the rainwater pipe 200; after the rainwater pipe 200 reaches the ground, the gravity of the rainwater pipe 200 is no longer applied to the hanger body 1, the compressed return spring 25 is reset, and the hanger body 1 moves upward relative to the slider 2. The slider 2 drives the pressure roller 41 away from the outer wall of the rainwater pipe 200 and releases it by pushing and pulling the connecting rod 44 and the pressure arm 42.

[0031] In some embodiments, Figure 1 As shown, the supporting mechanism has two bottom columns 31 arranged at the bottom of the lower hanger beam 13, and a connecting groove 32 is fixedly provided at the bottom of the bottom column 31. Two supporting arms 34 are arranged inside the connecting groove 32, and rollers 33 parallel to the lower hanger beam 13 are fixedly provided at the ends of the supporting arms 34. The supporting rollers 33 are abutted against the inner wall of the rainwater pipe 200 placed on the top of the lower hanger beam 13. The contact area and the supporting range between the inner wall of the rainwater pipe 200 are increased by the supporting rollers 33, thereby improving the stability of the lifting and reducing the wear on the rainwater pipe 200.

[0032] In some embodiments, one end of the support arm 34 is rotatably connected to the connecting groove 32, a connecting plate 35 is provided on one side of the support arm 34, and a tension spring 36 is provided between the connecting plate 35 and the bottom of the lower hanger beam 13. The tension spring 36 applies an upward elastic force to the support arm 34, so that the roller 33 at the end of the support arm 34 can maintain a close contact with the inner wall of the rainwater pipe 200 at any time.

[0033] In some embodiments, Figure 5 As shown, a transmission gear 37 is fixedly provided on one end of the support arm 34 close to the connecting groove 32, and the transmission gear 37 is rotatably arranged inside the connecting groove 32. The two support arms 34 connected in the connecting groove 32 are symmetrical, and the two transmission gears 37 inside the connecting groove 32 are meshed with each other. The two support arms 34 are connected through the transmission gear 37, which ensures the synchronization of the two support arms 34, thereby reducing the large deviation of the force exerted by the two support arms 34 on the inner wall of the rainwater pipe 200 and affecting its stability.

[0034] In some embodiments, a pad 15 is provided on the top of the lower hanger beam 13, and the top of the pad 15 is an arc-shaped surface that matches the inner wall of the rainwater pipe 200, thereby increasing the contact area with the rainwater pipe 200 and improving the stability of the placement of the rainwater pipe 200. At the same time, it can play a certain buffering role during placement to avoid damage to the rainwater pipe 200 during placement.

[0035] In some embodiments, grooves 151 are evenly opened on the top of the pad 15, and the grooves 151 are perpendicular to the extending direction of the pad 15. The grooves 151 can increase the friction between the rainwater pipe 200 and the pad 15, and further improve its stability.

[0036] In some embodiments, a counterweight block 11 is provided on one end of the upper sling beam 12 away from the connecting beam 14 , and the arrangement of the counterweight block 11 can keep the sling body 1 balanced.

[0037] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0038] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A lifting device for laying rainwater pipes, characterized in that: The utility model comprises a sling body, wherein the sling body has an upper sling beam and a lower sling beam which are parallel to each other, and a connecting beam is fixedly arranged between one end of the upper sling beam and the lower sling beam; A support mechanism is provided at the bottom of the lower sling beam, and the support mechanism is used to provide upward support for the inner wall of the rainwater pipe placed on the top of the lower sling beam; The bottom of the upper sling beam is symmetrically provided with a clamping mechanism on both sides, the upper sling beam is provided with a slider which slides in the vertical direction, and the top of the slider is provided with a hanging plate; When the slider moves vertically or downwardly inside the upper hanger beam, it drives the clamping mechanism to swing downward or upward to press down or release the outer side wall of the rainwater pipe placed on the top of the lower hanger beam.

2. The lifting device for laying rainwater pipes according to claim 1 is characterized in that: The clamping mechanism has a pressure roller parallel to the lower hanger beam, and pressure arms are rotatably provided at both ends of the pressure roller. One end of the pressure arm facing away from the pressure roller is hinged to the side of the upper hanger beam, and a connecting rod is provided between the two pressure arms. Two parallel push-pull connecting rods are symmetrically provided on the connecting rod, and one end of the push-pull connecting rod facing away from the connecting rod is hinged to the bottom end of the slider.

3. The lifting device for laying rainwater pipes according to claim 1 is characterized in that: An upper limit plate is fixedly provided on the upper end of the sliding block above the upper sling beam, and the sling plate is fixedly provided on the upper limit plate. Lower limit plates are fixedly provided on both sides of the lower end of the sliding block below the upper sling beam, and elastic support is provided between the lower limit plates and the bottom of the upper sling beam.

4. The lifting device for laying rainwater pipes according to claim 3 is characterized in that: At least two longitudinal guide rods corresponding to the lower limit plate are arranged at the bottom end of the upper hanger beam, and the lower limit plate is slidably connected to the longitudinal guide rods. A return spring is sleeved on the outer side of the longitudinal guide rod between the lower limit plate and the upper hanger beam, and the return spring is elastically supported between the lower limit plate and the bottom of the upper hanger beam, and a baffle is fixedly arranged at the bottom end of the longitudinal guide rod.

5. The lifting device for laying rainwater pipes according to claim 1 is characterized in that: The supporting mechanism comprises two bottom columns arranged at the bottom of the lower hanger beam, a connecting groove is fixedly provided at the bottom of the bottom column, two supporting arms are provided inside the connecting groove, and rollers parallel to the lower hanger beam are fixedly provided at the ends of the supporting arms, and the supporting rollers are abutted against the inner wall of the rainwater pipe placed on the top of the lower hanger beam.

6. The lifting device for laying rainwater pipes according to claim 5 is characterized in that: One end of the support arm is rotatably connected to the connecting groove, a connecting plate is arranged on one side of the support arm, and a tension spring is arranged between the connecting plate and the bottom of the lower hanger beam.

7. The lifting device for laying rainwater pipes according to claim 6 is characterized in that: A transmission gear is fixedly arranged on one end of the support arm close to the connecting groove, and the transmission gear is rotatably arranged inside the connecting groove. The two support arms connected in the connecting groove are symmetrical, and the two transmission gears inside the connecting groove are meshed with each other.

8. The lifting device for laying rainwater pipes according to claim 1 is characterized in that: A pad is provided on the top of the lower hanger beam, and the top of the pad is an arc-shaped surface matching the inner wall of the rainwater pipe.

9. The lifting device for laying rainwater pipes according to claim 8, characterized in that: Grooves are evenly formed on the top of the pad, and the grooves are perpendicular to the extending direction of the pad.

10. The lifting device for laying rainwater pipes according to claim 1, characterized in that: A counterweight block is arranged on one end of the upper sling beam away from the connecting beam.

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