Lifting device

Abstract

The utility model relates to the technical field of municipal engineering, and discloses a hoisting device which comprises a door-shaped frame, a first guide rail, a first sliding block, a door-shaped plate, a winch, a second guide rail, a second sliding block, a [-shaped plate, a thumb cylinder and a clamping handle. During use, the distance between the thumb cylinders on the two sides can be changed under the driving of external force, so that the two groups of oppositely distributed clamping handles are respectively positioned right above the two groups of notches of the well lid. And the winch is controlled to work, that is, the two groups of oppositely distributed clamping handles are driven to be inserted into the two groups of notches of the well lid respectively. And finally, the two thumb cylinders are controlled, so that the two groups of oppositely distributed clamping handles respectively clamp or loosen the two groups of notches of the well lid. According to the well lid hoisting device, well lid hoisting work can be completed through coordination and cooperation work, due to the fact that the well lid is always located in the center of the device in the hoisting process, the center-of-gravity shift of the device can be avoided, and the stability during hoisting is improved.

Description

Technical Field

[0001] This application relates to the technical field of municipal engineering, for example, to a lifting device. Background Art

[0002] A municipal road manhole cover lifting tool is disclosed in the related technology (Publication No.: CN219314415U), which includes a machine body, a lifting unit, a fixture fixing frame, a horizontal moving unit and a fixture. The machine body includes two longitudinal support frames and a transverse support plate disposed between the two longitudinal support frames. The lifting unit is disposed on the transverse support plate. The fixture fixing frame is installed on the lifting unit and moves up and down with the lifting unit. There are two groups of horizontal moving units, and both are installed on the fixture fixing frame. Among them, the two groups of horizontal moving units are arranged in the same direction and are both along the arrangement direction of the transverse support plate. There are two fixtures, and each fixture is respectively installed on one of the groups of horizontal moving units.

[0003] In the process of implementing the above embodiments, it is found that at least the following problems exist in the related technology:

[0004] This municipal road manhole cover lifting tool uses the lifting unit and the horizontal moving unit to indirectly drive the fixture to complete the lifting of the manhole cover, eliminating the need for manual prying with effort and avoiding the situation of the manhole cover slipping during the lifting process after manual prying. However, since the lifting unit is located at the side rear of the two fixtures, when the two fixtures drive the manhole cover to move, in order to avoid collision between the manhole cover and the lifting unit, it is necessary to ensure a sufficient distance between the two fixtures and the lifting unit. However, when the distance between the two fixtures and the lifting unit is relatively large, the lifted manhole cover will be located in the side area of the device. Therefore, during the lifting process, the center of gravity of the device is likely to shift, resulting in poor stability.

[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0006] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preamble to the subsequent detailed description.

[0007] The embodiments of the present disclosure provide a lifting device to improve the stability of the device during the lifting process.

[0008] In some embodiments, the hoisting device includes: a gantry; a first guide rail respectively installed on opposite sides of opposite side walls of the gantry along the height direction of the gantry; first sliders respectively slidably installed on the two first guide rails; a gantry plate installed between the two first sliders; a winch installed on the top wall of the gantry, and the rope of the winch is connected to the top wall of the gantry plate; a second guide rail installed on the top wall of the gantry plate along the width direction of the gantry and located on both sides of the gantry plate, and both second guide rails are located inside the gantry plate; second sliders respectively slidably installed on the two second guide rails; C-shaped plates respectively installed on the two second sliders, and the two C-shaped plates are distributed oppositely; thumb cylinders respectively installed on the bottom surfaces of the two C-shaped plates, and the clamping ends of the two thumb cylinders both face the ground; clamping handles respectively installed on two moving ends of each thumb cylinder, and the two clamping handles installed on the same thumb cylinder are distributed oppositely; wherein, the two C-shaped plates are controllably movable towards or away from each other to change the distance between the two thumb cylinders.

[0009] Optionally, it further includes: nuts for lead screws respectively installed on the two C-shaped plates; ball screws respectively installed inside the two nuts for lead screws, the straight lines where the two ball screws are located coincide with each other, and are both parallel to the straight lines where the two second guide rails are located; wherein, the two ball screws can be controllably rotated to make the two C-shaped plates move towards or away from each other.

[0010] Optionally, it further includes: a biaxial motor installed on the top wall of the gantry plate and located between the two second guide rails; couplings respectively installed between the two rotating ends of the biaxial motor and the two ball screws.

[0011] Optionally, it further includes: supports for lead screws respectively sleeved on the ends of the two ball screws and respectively installed on opposite side walls of the gantry plate.

[0012] Optionally, it further includes: support plates respectively connected to opposite side walls of the gantry, and along the height direction of the gantry, both support plates are located below the gantry; support wheels respectively evenly installed on the bottom surfaces of the two support plates, and multiple support wheels on both sides are all used to abut against the ground.

[0013] Optionally, it further includes: first reinforcing plates respectively installed at the joints between the two support plates and opposite side walls of the gantry.

[0014] Optionally, it further includes: second reinforcing plates respectively installed at the bent parts of the gantry.

[0015] Optionally, it further includes: first limit pins, which are respectively installed on the opposite sides of the opposite side walls of the gantry and are respectively located at the ends of the two first guide rails.

[0016] Optionally, it further includes: second limit pins, which are respectively located at the ends of the two second guide rails and are both installed on the top wall of the gantry plate.

[0017] A hoisting device provided by an embodiment of the present disclosure can achieve the following technical effects:

[0018] A hoisting device provided by an embodiment of the present disclosure includes a gantry, first guide rails, first sliders, a gantry plate, a winch, second guide rails, second sliders, U-shaped plates, thumb cylinders, and clamping handles. The first guide rails are respectively installed on the opposite sides of the opposite side walls of the gantry along the height direction of the gantry, and both of the two first guide rails are used to support and install slidable first sliders. The first sliders are respectively slidably installed on the two first guide rails, and both of the two first guide rails and the first sliders are used for guiding and supporting. The gantry plate is installed between the two first sliders and can move along the height direction of the gantry under the guiding and supporting action of the two first guide rails and the first sliders. The winch is installed on the top wall of the gantry, and the rope of the winch is connected to the top wall of the gantry plate and is used to drive the gantry plate to move along the height direction of the gantry. The second guide rails are installed on the top wall of the gantry plate along the width direction of the gantry and are located on both sides of the gantry plate. Both of the two second guide rails are located inside the gantry plate and are both used to support and install slidable second sliders. The second sliders are respectively slidably installed on the two second guide rails, and both of the two second guide rails and the second sliders are used for guiding and supporting. The U-shaped plates are respectively installed on the two second sliders, and the two U-shaped plates are distributed oppositely. Under the guiding and supporting action of the two second guide rails and the second sliders, they can respectively move along the width direction of the gantry. The thumb cylinders are respectively installed on the bottom surfaces of the two U-shaped plates, and the clamping ends of the two thumb cylinders both face the ground and are respectively used to provide clamping force. The clamping handles are respectively installed on the two moving ends of each thumb cylinder. The two clamping handles installed on the same thumb cylinder are distributed oppositely. The two groups of two clamping handles distributed oppositely are respectively used to be inserted into the two groups of notches of the manhole cover and, under the drive of the two thumb cylinders, clamp or loosen the two groups of notches of the manhole cover. Among them, the two U-shaped plates are controllably movable towards or away from each other to change the distance between the two thumb cylinders.

[0019] When in use, under the drive of an external force and the guiding and supporting action of the second guide rails and the second sliders on both sides, the U-shaped plates on both sides can move towards or away from each other. Thus, the distance between the thumb cylinders on both sides is changed, so that the two clamping handles distributed relatively in two groups are respectively located directly above the two groups of notches of the manhole cover. Control the winch to work. Under the guiding and supporting action of the first guide rails and the first sliders on both sides, the portal plate can be driven to move up and down, and finally the two clamping handles distributed relatively in two groups are respectively used to insert into the two groups of notches of the manhole cover. Finally, control the two thumb cylinders, and the two clamping handles distributed relatively in two groups can respectively clamp or loosen the two groups of notches of the manhole cover. Through coordinated work, the lifting of the manhole cover can be completed without manual effort to pry it up. Moreover, since the manhole cover is always in the central position of the device during the lifting process, the center of gravity of the device can be avoided from shifting, thereby improving the stability during lifting.

[0020] The above general description and the following description are only exemplary and explanatory and are not intended to limit the present application. Brief Description of the Drawings

[0021] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements. The drawings do not constitute a scale limitation, and among them:

[0022] Figure 1 is the front view structural schematic diagram of a lifting device provided by an embodiment of the present disclosure;

[0023] Figure 2 is Figure 1 the enlarged structural schematic diagram at A in

[0024] Figure 3 is the side view structural schematic diagram of a lifting device provided by an embodiment of the present disclosure;

[0025] Figure 4 is the top view structural schematic diagram of a lifting device provided by an embodiment of the present disclosure.

[0026] Reference Numerals:

[0027] 1: Gantry; 2: First Guide Rail; 3: First Slider; 4: Portal Plate; 5: Winch; 6: Second Guide Rail; 7: Second Slider; 8: U-shaped Plate; 9: Thumb Cylinder; 10: Clamping Handle; 11: Nut for Lead Screw; 12: Ball Screw; 13: Biaxial Motor; 14: Support for Lead Screw; 15: Support Plate; 16: Support Wheel; 17: First Reinforcing Plate; 18: Second Reinforcing Plate; 19: First Limit Pin; 20: Second Limit Pin. Detailed Embodiments

[0028] In order to more comprehensively understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0029] In the embodiments of the present disclosure, terms such as "first" and "second" in the specification, claims, and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0030] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "back" is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] In addition, the terms "arranged", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] Unless otherwise specified, the term "plurality" means two or more.

[0033] In the embodiments of the present disclosure, the character " / " indicates that the front and rear objects are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" is a description of the associated relationship of an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0035] It should be noted that, without conflict, the embodiments in this disclosure and the features in the embodiments can be combined with each other.

[0036] Combined with Figures 1 to 4 As shown, the embodiments of the present disclosure provide a lifting device, including a gantry 1, a first guide rail 2, a first slider 3, a gantry plate 4, a winch 5, a second guide rail 6, a second slider 7, a C-shaped plate 8, a thumb cylinder 9 and a clamping handle 10. The first guide rail 2 is installed on the opposite two side surfaces of the opposite two side walls of the gantry 1 along the height direction of the gantry 1, and both sides of the first guide rail 2 are used to support and install the slidable first slider 3. The first sliders 3 are respectively slidably installed on the first guide rails 2 on both sides, and the first guide rails 2 and the first sliders 3 on both sides are both used for guiding and supporting. The gantry plate 4 is installed between the first sliders 3 on both sides, and under the guiding and supporting action of the first guide rails 2 and the first sliders 3 on both sides, it can move along the height direction of the gantry 1. The winch 5 is installed on the top wall of the gantry 1, and the rope of the winch 5 is connected to the top wall of the gantry plate 4, and is used to drive the gantry plate 4 to move along the height direction of the gantry 1. The second guide rail 6 is installed on the top wall of the gantry plate 4 along the width direction of the gantry 1 and is located on both sides of the gantry plate 4. Both sides of the second guide rail 6 are located inside the gantry plate 4 and are both used to support and install the slidable second slider 7. The second sliders 7 are respectively slidably installed on the second guide rails 6 on both sides, and the second guide rails 6 and the second sliders 7 on both sides are both used for guiding and supporting. The C-shaped plates 8 are respectively installed on the second sliders 7 on both sides, and the C-shaped plates 8 on both sides are distributed oppositely. Under the guiding and supporting action of the second guide rails 6 and the second sliders 7 on both sides, they can move along the width direction of the gantry 1 respectively. The thumb cylinders 9 are respectively installed on the bottom surfaces of the C-shaped plates 8 on both sides, and the clamping ends of the thumb cylinders 9 on both sides face the ground and are respectively used to provide clamping force. The clamping handles 10 are respectively installed on the two moving ends of each thumb cylinder 9. The two clamping handles 10 installed on the same thumb cylinder 9 are distributed oppositely. The two groups of two clamping handles 10 distributed oppositely are respectively used to be inserted into the two groups of notches of the manhole cover, and under the drive of the two thumb cylinders 9, they can clamp or loosen the two groups of notches of the manhole cover. Among them, the C-shaped plates 8 on both sides are controllable to move towards or away from each other to change the distance between the thumb cylinders 9 on both sides.

[0037] A lifting device provided by an embodiment of the present disclosure can move the two C-shaped plates 8 on both sides towards or away from each other under the drive of an external force and the guiding and supporting action of the second guide rails 6 and the second sliders 7 on both sides. Thereby changing the distance between the two thumb cylinders 9 on both sides, so that the two clamping handles 10 distributed relatively in two groups are respectively located directly above the two groups of notches of the manhole cover. Control the winch 5 to work. Under the guiding and supporting action of the first guide rails 2 and the first sliders 3 on both sides, the portal plate 4 can be driven to move up and down, and finally drive the two clamping handles 10 distributed relatively in two groups to be respectively inserted into the two groups of notches of the manhole cover. Finally, control the two thumb cylinders 9, and the two clamping handles 10 distributed relatively in two groups can respectively clamp or loosen the two groups of notches of the manhole cover. Through coordinated work, the lifting work of the manhole cover can be completed without manual effort to pry it up. Moreover, since the manhole cover is always in the central position of the device during the lifting process, the center of gravity of the device can be avoided from shifting, thereby improving the stability during lifting.

[0038] Optionally, as shown in Figure 1 It further includes a lead screw nut 11 and a ball screw 12. The lead screw nuts 11 are respectively installed on the two C-shaped plates 8 on both sides and are used to drive the two C-shaped plates 8 on both sides to move. The ball screws 12 are respectively installed inside the two lead screw nuts 11 on both sides. The straight lines where the two ball screws 12 are located coincide with each other, and are both parallel to the straight lines where the two second guide rails 6 are located. The two ball screws 12 cooperate with the two lead screw nuts 11 to work, and respectively convert the rotational motion into a linear motion. Among them, the two ball screws 12 can be controlled to rotate so that the two C-shaped plates 8 move towards or away from each other.

[0039] In the embodiment of the present disclosure, under the drive of an external force, the two ball screws 12 can perform rotational motion. Under the guiding and supporting action of the two second guide rails 6 and the two second sliders 7 on both sides, the two lead screw nuts 11 can drive the two C-shaped plates 8 on both sides to move towards or away from each other, and finally change the distance between the two thumb cylinders 9 on both sides.

[0040] Optionally, as shown in Figure 1 It further includes a dual-axis motor 13 and a coupling. The dual-axis motor 13 is installed on the top wall of the portal plate 4 and is located between the two second guide rails 6 and is used to provide driving force. The couplings are respectively installed between the two rotating ends of the dual-axis motor 13 and the two ball screws 12 on both sides and are respectively used to transmit the driving force.

[0041] In the embodiment of the present disclosure, control the dual-axis motor 13 to work. Through the two couplings on both sides, the two ball screws 12 can be driven to perform rotational motion, and finally the automatic adjustment function of the distance between the two thumb cylinders 9 on both sides can be realized.

[0042] Optionally, as shown in Figure 1 and Figure 2As shown, it further includes a support 14 for the lead screw. The supports 14 for the lead screw are respectively sleeved on the ends of the two lead screws 12 on both sides, and are respectively installed on the opposite side walls of the gantry plate 4.

[0043] In the embodiment of the present disclosure, after the supports 14 for the lead screws on both sides are respectively installed on the opposite side walls of the gantry plate 4, they are respectively used to support and install the rotatable lead screws 12 on both sides. To improve the stability of the lead screws 12 on both sides and improve the rotation accuracy of the lead screws 12 on both sides.

[0044] Optionally, in combination with Figure 1 、 Figure 3 and Figure 4 As shown, it further includes a support plate 15 and support wheels 16. The support plates 15 are respectively connected to the opposite side walls of the gantry 1. Along the height direction of the gantry 1, the support plates 15 on both sides are located below the gantry 1. The support wheels 16 are respectively and evenly installed on the bottom surfaces of the support plates 15 on both sides, and multiple support wheels 16 on both sides are all used to abut against the ground.

[0045] In the embodiment of the present disclosure, the support plates 15 are respectively connected to the opposite side walls of the gantry 1, and are respectively used to support and install multiple support wheels 16. Multiple support wheels 16 on both sides are all used to abut against the ground, playing a role in facilitating the movement of the entire device.

[0046] Optionally, in combination with Figure 1 As shown, it further includes a first reinforcing plate 17. The first reinforcing plates 17 are respectively installed at the joints of the support plates 15 on both sides and the opposite side walls of the gantry 1.

[0047] In the embodiment of the present disclosure, the first reinforcing plates 17 on both sides are respectively used to improve the connection strength between the support plates 15 on both sides and the opposite side walls of the gantry 1, so as to prevent the joints between the support plates 15 on both sides and the opposite side walls of the gantry 1 from breaking or deforming under the action of external forces.

[0048] Optionally, in combination with Figure 1 As shown, it further includes a second reinforcing plate 18. The second reinforcing plates 18 are respectively installed at the bent portions of the gantry 1.

[0049] In the embodiment of the present disclosure, the second reinforcing plate 18 is used to improve the structural strength of the gantry 1, so as to prevent the bent portions of the gantry 1 from breaking or deforming under the action of external forces.

[0050] Optionally, in combination with Figure 1 and Figure 2 As shown, it further includes a first limit pin 19. The first limit pins 19 are respectively installed on the opposite side surfaces of the opposite side walls of the gantry 1, and are respectively located at the ends of the first guide rails 2 on both sides.

[0051] In the embodiments of the present disclosure, the first limit pins 19 on both sides are both used for limiting, so as to prevent the first sliders 3 on both sides from falling off the first guide rails 2 on both sides, and limit the sliding range of the first sliders 3 on both sides relative to the first guide rails 2 on both sides.

[0052] Optionally, as shown in Figure 1 and Figure 2 , a second limit pin 20 is further included. The second limit pins 20 are respectively located at the ends of the second guide rails 6 on both sides, and are both installed on the top wall of the gantry plate 4.

[0053] In the embodiments of the present disclosure, the second limit pins 20 on both sides are both used for limiting, so as to prevent the second sliders 7 on both sides from falling off the second guide rails on both sides, and limit the sliding range of the second sliders on both sides relative to the second guide rails 6 on both sides.

[0054] The above description and the drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural and other changes. Embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A lifting device, characterized in that: Including: Gantry; The first guide rails are respectively installed on the opposite two side surfaces of the opposite two side walls of the gantry along the height direction of the gantry; The first sliders are respectively slidably installed on the two first guide rails on both sides; The gantry plate is installed between the two first sliders on both sides; The winch is installed on the top wall of the gantry, and the rope of the winch is connected to the top wall of the gantry plate; The second guide rails are installed on the top wall of the gantry plate along the width direction of the gantry, and are located on both sides of the gantry plate. Both second guide rails on both sides are located inside the gantry plate; The second sliders are respectively slidably installed on the two second guide rails on both sides; The U-shaped plates are respectively installed on the two second sliders on both sides, and the two U-shaped plates on both sides are distributed oppositely; The thumb cylinders are respectively installed on the bottom surfaces of the two U-shaped plates on both sides, and the clamping ends of the two thumb cylinders on both sides face the ground; The clamping handles are respectively installed on the two moving ends of each thumb cylinder, and the two clamping handles installed on the same thumb cylinder are distributed oppositely; Wherein, the two U-shaped plates on both sides are controllably movable towards or away from each other to change the distance between the two thumb cylinders on both sides.

2. A lifting device according to claim 1, characterized in that: It further includes: The nuts for the lead screws are respectively installed on the two U-shaped plates on both sides; The ball screws are respectively installed inside the two nuts for the lead screws on both sides. The straight lines where the two ball screws are located coincide with each other, and both are parallel to the straight lines where the two second guide rails are located; Wherein, the two ball screws on both sides can be controllably rotated to make the two U-shaped plates on both sides move towards or away from each other.

3. A lifting device according to claim 2, characterized in that: It further includes: The double-shaft motor is installed on the top wall of the gantry plate and is located between the two second guide rails on both sides; The couplings are respectively installed between the two rotating ends of the double-shaft motor and the two ball screws on both sides.

4. A lifting device according to claim 3, characterized in that: It further includes: The supports for the lead screws are respectively sleeved on the ends of the two ball screws on both sides and are respectively installed on the opposite two side walls of the gantry plate.

5. A lifting device according to claim 1, characterized in that: It further includes: The support plates are respectively connected to the opposite two side walls of the gantry. Along the height direction of the gantry, both support plates on both sides are located below the gantry; The support wheels are respectively evenly installed on the bottom surfaces of the two support plates on both sides, and multiple support wheels on both sides are all used to abut against the ground.

6. A lifting device according to claim 5, characterized in that: It further includes: The first reinforcing plates are respectively installed at the joints of the two support plates and the opposite two side walls of the gantry.

7. A lifting device according to any one of claims 1 to 6, characterized in that: It further includes: The second reinforcing plates are respectively installed at the bent parts of the gantry.

8. A lifting device according to any one of claims 1 to 6, characterized in that: It further includes: The first limit pins are respectively installed on the opposite two side surfaces of the opposite two side walls of the gantry and are respectively located at the ends of the two first guide rails on both sides.

9. A lifting device according to any one of claims 1 to 6, characterized in that: It further includes: The second limit pins are respectively located at the ends of the two second guide rails on both sides and are both installed on the top wall of the gantry plate.

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