Safety protection mechanism for preventing rod piece climbing workbench from falling

Abstract

Under the condition that normal work of functional mechanism assemblies arranged on the working table is not affected, when connection failure occurs and the whole platform overturns and falls, the falling range of the platform can be effectively limited, meanwhile, the falling speed of the platform is reduced, and the service life of the platform is prolonged. The anti-falling safety protection mechanism for climbing the working table has an effective buffering effect, and can effectively protect the working table and external property personnel. The workbench comprises a connection protection assembly arranged above a workbench body, the connection protection assembly comprises protection connection columns extending upwards from a main connection block in the workbench and hanging protection cables installed on the protection connection columns, and the two ends of each hanging protection cable are fixedly connected with the protection connection columns respectively. And the hanging protection cable and the protection connecting column jointly encircle to form a hollow area for a rod piece to pass through.

Description

Technical Field

[0001] The utility model relates to the field of safety protection components of a rod climbing work platform device, in particular to a safety protection mechanism for preventing the fall of a rod climbing workbench. Background Technique

[0002] In many indoor and outdoor scenarios, a series of devices and equipment need to be installed at the top of a relatively high vertical rod to achieve various different functional effects. Specific application scenarios include installing cameras at traffic intersections, public places, etc. for monitoring and managing traffic flow or safety conditions; installing wireless base station antennas and microwave transmission equipment for providing mobile communication services at the top of outdoor base poles; installing night lighting fixtures at the top of rods in some outdoor scenarios such as streets, squares, stadiums, etc.; in addition, devices such as anemometers and wind vanes for collecting meteorological data in a weather station also need to be installed at the top of a rod with a certain height from the ground. For the installation, commissioning and maintenance of such equipment, since the operation needs to be carried out at a relatively high altitude and is limited by the structural strength and surface condition of the rod itself, there will be a certain safety risk for personnel to climb and conduct on-site operations. Therefore, for some maintenance tasks with relatively low difficulty or routine observation and detection requirements, some automatic climbing work platforms are currently used to complete them.

[0003] At present, there are various automated working platforms on the market for climbing and lifting in different scenarios. For example, a self-climbing cinnamon peeling device disclosed in the Chinese invention patent application document with the application number CN202410239929.3 includes a ring cutting and grooving part, a wire knife peeling part, and a power climbing part assembled together. The power climbing part is located at the bottom, the ring cutting and grooving part is located at the top, and the wire knife peeling part is installed on one side. During the harvesting operation, the power climbing part clamps on the outer periphery of the tree trunk and provides the power for upward climbing. The central hole of the ring cutting and grooving part is sleeved on the tree trunk to complete the ring cutting operation at the specified position. The working end of the wire knife peeling part faces the tree trunk, and the thin wire with cutting ability drawn out from the wire knife peeling part is embedded into the ring groove previously opened by the ring cutting and grooving part. Along with the movement of the power climbing part on the tree trunk, the peeling and cutting actions are completed. This device can achieve the automated climbing and cutting processing of the device for the tree body that needs to be processed by ring cutting. However, considering the fitting stability for tree trunks or rod-shaped objects with different diameter sizes, some devices have adopted further optimized structures. For example, a rod climbing and walking workbench with high adhesion ability disclosed in the Chinese invention patent application document with the application number CN202410092749.7 can form a tight abutting and fitting state between each roller and the surface of the rod, and the force states of each roller are similar or close to ensure that the workbench prevents problems such as roller slipping, overturning, or falling. This workbench includes an openable and closable movable clamping assembly, which in turn includes a main connecting block, a first clamping plate and a second clamping plate hinged to the main connecting block, and an opening and closing driving device for controlling the opening and closing action; climbing and walking rollers and rotatable brackets are provided on both the main connecting block and the clamping plate; the rotatable bracket can be driven by a deflection driving mechanism to rotate around a horizontal axis, the inner edges of each climbing and walking roller are simultaneously in contact with the outer wall surface of the rod, and the arc on the outer circumference of the rod corresponding to the contact points of any two rollers is one-third of the circle.

[0004] However, the applicant has found that, for example, the above-mentioned climbing work platform with an openable and closable clamping structure, although it can be conveniently disassembled, assembled, and transferred between different rods, compared with the conventional closed socket fixing structure, due to the adoption of the openable and closable structure, in the case where the device for providing the clamping force fails, it is more likely to cause the overall falling of the workbench. More notably, due to the adoption of the open structure, once a connection failure occurs, such a workbench will not slide down along the rod like a traditional structure workbench, but will be completely separated from the rod under the drive of unbalanced components and be thrown out under the action of collision. At this time, the uncontrollable falling action of the workbench will pose a great safety hazard to the surrounding property and personnel.

[0005] In view of the above problems, the present utility model provides a safety protection mechanism for preventing the fall of a climbing workbench, which can effectively limit the falling range of the platform and reduce its falling speed, playing an effective buffering role when connection failure occurs and causes the overall overturning and falling of the platform, without affecting the normal operation of the functional mechanism components set on the workbench, and can effectively protect both the workbench itself and external property and personnel. Summary of the Utility Model

[0006] The present utility model provides a safety protection mechanism for preventing the fall of a climbing workbench, which can effectively limit the falling range of the platform and reduce its falling speed, playing an effective buffering role when connection failure occurs and causes the overall overturning and falling of the platform, without affecting the normal operation of the functional mechanism components set on the workbench, and can effectively protect both the workbench itself and external property and personnel.

[0007] The above technical objectives of the present utility model are achieved through the following technical solutions:

[0008] A safety protection mechanism for preventing the fall of a rod climbing workbench, characterized in that it includes a connection protection component arranged above the workbench main body. The connection protection component includes a protection connection column extending upward from the main connection block in the workbench, and a hanging protection cable installed on the protection connection column. Both ends of the hanging protection cable are fixedly connected to the protection connection column, and the hanging protection cable and the protection connection column jointly form a hollow area for the rod to pass through.

[0009] As a preference for the present utility model, at least one end of the hanging protection cable is connected to the protection connection column through a detachable lock structure.

[0010] As a preference for the present utility model, the hanging protection cable includes a cable core part arranged inside for supporting and shaping, and an outer coating protection layer coated outside the cable core part.

[0011] As a preference for the present utility model, a damping roller for abutting against the surface of the rod is also installed on the hanging protection cable.

[0012] As a preference for the present utility model, a supporting column extending downward from the workbench main body is also arranged below the workbench main body, and a supporting and buffering part for abutting against the surface of the rod when the workbench is in an inclined state and falling is formed at the bottom of the supporting column.

[0013] Preferably, the supporting column includes a main body section and an anti-collision connection section, and a damping buffer spring is arranged between the main body section and the anti-collision connection section.

[0014] In summary, the present utility model can achieve the following beneficial effects:

[0015] In the anti-falling safety protection mechanism for a rod-climbing workbench provided by the solution of the present utility model, for a workbench that climbs and moves and works on a slender rod-shaped object, it can achieve an effective mechanism for slowing down the falling speed of the equipment immediately once a connection failure occurs without affecting the normal operation of the workbench. Whether it is during the climbing up or sliding down process, as long as there is a tendency for the work platform to separate from the rod, the mechanism can quickly utilize the characteristics of the workbench's own deflection and overturning, so that a clamping and abutting state is formed between the connecting protection component and the rod, and the frictional force generated by this state is used to play an effective slow-down protection role. In addition, the safety protection mechanism adopted here can also effectively limit the range and distance of the workbench falling and being thrown outwards during the falling process, further improving the safety in complex working scenarios. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a rod-climbing workbench provided with an anti-falling safety protection mechanism for a rod-climbing workbench;

[0017] Figure 2 It is an enlarged schematic diagram of the connection relationship between the climbing walking rollers, the rotatable bracket, and the deflection driving mechanism on the workbench;

[0018] Figure 3 It is a schematic diagram of the state when the workbench is normally clamped on the rod and climbs;

[0019] Figure 4 It is a schematic diagram of the state when the clamping structure of the workbench fails and tilts, and the connecting protection component prevents the equipment from sliding down;

[0020] Figure 5 It is a schematic diagram of the hanging protection cable and the damping roller structure installed on its outer side;

[0021] Figure 6 It is a schematic diagram of the internal structure of the lifting mechanism;

[0022] Figure 7 It is an enlarged schematic diagram of the detachable buckle structure;

[0023] Figure 8 It is a schematic diagram of the internal structure of the supporting column.

[0024] In the figure:

[0025] 1 - Openable and movable clamping assembly, 101 - Workbench main body, 102 - First clamping plate, 103 - Second clamping plate, 104 - Opening and closing drive device, 105 - Climbing and walking rollers, 106 - Rotatable bracket, 107 - Deflection drive mechanism;

[0026] 2 - Connecting and protecting assembly, 201 - Protecting connecting column, 202 - Hanging protection cable, 203 - Cable core part, 204 - Outer covering protection layer;

[0027] 3 - Lifting and movable mechanism, 301 - Threaded lifting structure, 302 - Lifting drive device;

[0028] 4 - Detachable locking structure;

[0029] 5 - Damping roller;

[0030] 6 - Supporting column, 601 - Supporting buffer part, 602 - Main body section, 603 - Anti - collision connecting section, 604 - Vibration - damping buffer spring;

[0031] 7 - Rod member. Detailed implementation mode

[0032] The following specific embodiments are only explanations of the present invention, and they do not limit the present invention. After reading this specification, those skilled in the art can make modifications without creative contributions to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0033] This solution is achieved through the following technical means:

[0034] Embodiment: In the solution of this embodiment, a technical solution for the specific implementation of a safety protection mechanism against falling for a rod - member 7 climbing workbench is given. First, in this embodiment, it is necessary to briefly explain the working principle and usage scenario of the climbing workbench corresponding to this mechanism. Taking the clamping - type climbing workbench as an example. Refer to the attached Figure 1 As shown in the figure, the workbench device uses a clamping method to connect and fix with the rod member 7. On the basis of the existing conventional equipment structure, a safety protection mechanism against falling for the rod - member 7 climbing workbench as described above is additionally provided to specifically solve the failure safety problems of the clamping connection structure and other similar climbing workbenches, and play an effective safety protection role when the overall work platform loses the connection and fixing function and is about to overturn and fall. The solution of this embodiment will first briefly expand on the main parts of the equipment. Refer to the attached Figure 1As shown in the given structural layout diagram, the device includes a set of openable and closable clamping components 1, and this component further includes a workbench main body 101 for installing working equipment. The workbench main body 101 here is mainly used as a base supporting platform for installing other specific working devices, and different instrument devices can be set accordingly according to different working scenarios and usage states. For example, an observation and detection camera when the workbench is set on a signal transmitting pole or a lighting lamp post by the roadside, or a supporting setting base for cutting and pruning the outstretched branch parts when set on the main trunk of relatively straight trees. On both sides of the workbench main body 101, a first clamping plate 102 and a second clamping plate 103 are respectively provided. One end of the first clamping plate 102 and one end of the second clamping plate 103 are respectively hinged to both sides of the workbench main body 101, so that the first clamping plate 102 and the second clamping plate 103 can respectively rotate around their respective vertical hinge central axes, thereby changing the relative opening and closing degree between the clamping plates on both sides. At the same time, in this openable and closable clamping component, an opening and closing driving device 104 for controlling the opening and closing actions of the first clamping plate 102 and the second clamping plate 103 is also provided. For example, the opening and closing driving device 104 here can adopt a combination of a stepping motor and a gear train, and control the opening or closing actions between the clamping plates on both sides through the forward and reverse rotation of the stepping motor when it is energized. Of course, if only the opening and closing driving device 104 is used to provide the acting force for the device to clamp on the rod-shaped object, since the distance between the acting point of the driving force and the rotation axis is very close, the magnitude of the clamping force generated is obviously insufficient. Therefore, as a main source of providing the clamping force, a slender steel cable can also be connected at the positions of the clamping plates on both sides far from their respective hinge central axes, and the steel cable can be wound and unwound under the drive of another motor as a driving device, and the winding and unwinding actions here are coordinated with the movement of the aforementioned opening and closing driving device 104.

[0035] At the inner positions of the workbench main body 101, the first clamping plate 102 and the second clamping plate 103, at least a pair of climbing and walking rollers 105 and a rotatable bracket 106 for installing the climbing and walking rollers 105 are respectively installed. The climbing and walking rollers 105 are movably installed inside the rotatable bracket 106 and can rotate under the drive of their own wheel-side motors; the rotatable bracket 106 can rotate around a horizontal axis under the drive of a deflection driving mechanism 107, thereby changing and switching the rotation central axis of the climbing and walking rollers 105 to a vertical or horizontal state. Specifically, referring to the attached drawings of the specification Figure 2For the structure shown here, two roller components arranged side by side vertically are selected and respectively installed on their own rotatable brackets 106. These two rollers are drivably connected to a built-in drive device through a transmission belt. For example, when the motor component serving as the drive device here rotates forward or backward, the roller components can be made to change their orientation states according to the aforementioned actions.

[0036] Taking the lamp post lighting equipment with a relatively high roadside height as an example, in the climbing workbench given in the solution of this application, a camera unit for inspection and observation is first installed on the workbench main body. Only need to buckle and attach the openable and movable clamping assembly 1 to the outer wall surface of the lamp post in an open state, and then use the drive device to tighten the clamping plates on both sides. The aforementioned climbing and walking rollers 105 are closely attached to the outer wall of the rod member 7. At this time, if the climbing and walking rollers 105 arranged around the outside of the rod member 7 rotate around the horizontal central axis, the workbench as a whole can climb up along the rod member 7 until a certain target height position; once the workbench reaches the working target height position on the rod member 7, the rotatable bracket 106 can then change the rotation axis direction of the climbing and walking rollers 105 through its own deflection movement. When the climbing and walking rollers 105 are in a state where the rotation center axis is along the vertical direction, the synchronous rotation of each roller can drive the workbench as a whole to rotate around the rod member 7 to the specific working position under this target height position. And when the processing or detection work is completed, only need to make the climbing and walking rollers 105 rotate reversely, and the workbench as a whole can be made to complete the descending action.

[0037] Based on the above equipment structure, the most important improvement and optimization point in the solution of this embodiment is to add a safety protection mechanism for preventing the rod member 7 climbing workbench from falling, which can greatly improve the safety of the equipment during operation. This mechanism mainly includes a connection protection component 2 arranged above the workbench main body 101. The connection protection component 2 includes two main parts: a protection connection column 201 extending upward from the workbench main body 101, and a hanging protection cable 202 installed on the protection connection column 201. The two ends of the hanging protection cable are respectively connected and fixed to the protection connection column 201, and the hanging protection cable 202 and the protection connection column 201 jointly form a hollow area for the rod member 7 to pass through.

[0038] Specifically, for the structure of the connection protection component 2, this embodiment is also described with reference to the accompanying drawings of the specification. In the accompanying drawings of the specification Figure 1As shown, both ends of the hanging protection cable 202 here are respectively connected and installed at the top end position of the protection connection column 201, and in the vertical height direction, a certain distance is formed between the hanging protection cable 202 and the workbench. For the structure of the hanging protection cable 202 here, it includes a cable core part 203 arranged inside for supporting and shaping, and an outer covering protection layer 204 covering the outside of the cable core part 203. For example, the cable core part 203 here can be made of steel wire or copper wire with a certain hardness, and the outer covering protection layer 204 arranged on its outside can be made of plastic or rubber material. The reason for such a choice is that the internal cable core part 203 itself has a certain structural strength, which can avoid the obstructive effect on the normal lifting movement of the workbench caused by the sagging of the hanging protection cable 202, and the external outer covering protection layer 204 can effectively protect the aforementioned cable core part 203 in various environments. Of course, the hanging protection cable 202 and the protection connection column 201 are connected and fixed through a detachable lock structure 4 to facilitate disassembly and assembly operations. For the detachable lock structure 4, reference can be made to the structure shown in the attached Figure 7 of the specification. That is, at least one downward-opening hook part is fixedly arranged on the protection connection column 201. At the same time, a baffle that can rotate upward is movably installed on the hook part, and a return torsion spring is also arranged between the baffle and the hook part to enable the baffle to rebound downward automatically after the acting force is removed after the baffle is pushed upward to open. Of course, corresponding to this type of hook part, a connecting ring is also installed on at least one end of the hanging protection cable 202 to be sleeved inside the aforementioned hook part.

[0039] Taking the climbing and lifting state diagram given in the attached Figure 3 of the specification as an example, in the normal working state, the suspended part of the hanging protection cable 202 can also maintain a straight state under the support of its own rigidity without hindering the lifting action. At this time, once a situation occurs where the mechanism for providing the clamping and fixing acting force fails, the climbing workbench as a whole will enter the state shown in the attached Figure 4 of the specification.

[0040] When referring to the attached Figure 4Before explaining the given state, the applicant needs to make some explanations first. In the climbing workbench given in the solution of this application, since motors, batteries, and corresponding detection probes or trimming and cutting devices and other working equipment are mainly installed on the workbench main body 101, the weight of this part of the structure will also be greater than that of the clamping plates on both sides that only install wheel motors, rollers, and transmission mechanisms, resulting in the center of the overall equipment being closer to the workbench main body 101. Therefore, in this state, at the moment of connection failure, the overall equipment does not slide down in the original stable horizontal attachment state, but will present a state of tilting towards the workbench main body 101 as shown in the attached figure. Figure 4 As shown, the inner part of the hanging protection cable 202 that was not originally in contact with the rod 7 and is far from the workbench main body 101 will, under the drive of the deflection action, closely fit the outer wall surface of the rod 7, thereby providing a frictional resistance force to prevent the overall equipment from sliding down rapidly, thus playing an effective protective role.

[0041] On the basis of the above structure, further, the inventor found that when the climbing workbench equipment as a whole slides down in a tilted state, to play a more effective role in hindering its fall, the method of adding a supporting column 6 under the workbench main body 101 can be adopted, so that the hanging protection cable 202 at the upper position of the equipment and the end of the supporting column 6 at the lower position simultaneously abut against the outer wall surface of the rod 7, thereby playing a more effective role in preventing the fall. Specifically, the structure of the supporting column 6 can be referred to in the attached drawings of the specification. Figure 8 As shown, its structure can be mainly divided into two parts: the main body section 602 at the upper position and the anti-collision connection section 603 at the lower position. Here, the upper end of the main body section 602 is fixedly connected to the bottom end of the aforementioned workbench main body 101, and a hollow chamber is opened downward in its lower part. The anti-collision connection section 603 is inserted into the hollow chamber, and a damping buffer spring 604 component is also installed between the main body section 602 and the anti-collision connection section 603. In this structure, when the overall equipment falls and comes into contact with the ground and collides, the damping buffer spring 604 can play an effective buffering role to effectively protect the components such as motors and working devices above. Further, a rubber-based supporting buffer part 601 can be provided at the bottom end of the anti-collision connection section 603 of the supporting column 6. On the one hand, it can enhance the supporting friction between the climbing workbench and the wall surface of the rod 7 during the sliding process, and on the other hand, it can further enhance the collision protection effect when landing.

[0042] As a further preferred structure, the inventor also installed a damping roller 5 sleeved on the outside of the hanging protection cable 202 on the aforementioned hanging protection cable 202. As shown in the attached drawings of the specification. Figure 5Taking the given structural schematic diagram as an example, the damping roller 5 here is sleeved on the outside of the hanging protection cable 202 and can rotate around the hanging protection cable 202 as the center. Such a structural design mainly takes into account that the surface of the rod 7 may not be completely flat and smooth, and there may be a small number of small convex parts, such as an outward-turning billboard or a local convex part on the tree branch. Through the design of the damping roller 5 component, it is possible to avoid the aforementioned hanging protection cable 202 being embedded in the convex structure on the rod 7 while the equipment platform falls at a controllable and safe speed, providing reliable and mature conditions for quickly and efficiently eliminating equipment failures.

[0043] In addition, the inventor also considered that if the clamping rod 7 climbing workbench is applied to the preliminary pruning treatment scenario of tree branches, then upward chain saw blades and other devices will be installed on the workbench main body 101. At this time, in the structure of the aforementioned fixed connection protection component 2, due to the relatively high installation height of the hanging protection cable 202, it may partially block and interfere with the blade component or even completely cover it, and obviously the corresponding pruning treatment effect cannot be achieved.

[0044] In consideration of this problem, in this embodiment, the inventor further optimizes and improves the structure of the connection protection component 2, that is, a lifting and moving mechanism 3 is added between the protection connection column 201 and the workbench main body 101 to change and adjust the distance between the top of the protection connection column 201 and the workbench, and the lifting and moving mechanism 3 can be expanded with reference to the attached Figure 6 shown in the specification. Specifically, the lifting and moving mechanism 3 includes a threaded lifting structure 301 formed between them, and also includes a lifting drive device 302 arranged on the workbench main body 101. For example, the threaded lifting structure 301 here can be selected to have an external thread section on the aforementioned protection connection column 201 and let the protection connection column 201 penetrate through the workbench main body 101 up and down, and at the same time, a nut sleeve component is sleeved outside the external thread section. And a motor is installed in the workbench main body 101 as the lifting drive device 302, and a drive gear corresponding to the aforementioned nut sleeve component is fixedly sleeved on the output end of the motor. At this time, only by controlling the forward and reverse rotation of the motor, it is possible to adaptively change and adjust the height position of the protection connection column 201 and the hanging protection cable 202 arranged on it in the vertical direction, avoiding interference problems with components such as chain saw blades during the normal operation of the equipment.

[0045] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A rod climbing workbench anti-falling safety protection mechanism, characterized in that: The invention comprises a connection protection component (2) arranged above a workbench body (101), wherein the connection protection component (2) comprises a protection connection column (201) extending upward from the workbench body (101), and a hanging protection cable (202) installed on the protection connection column (201), wherein both ends of the hanging protection cable (202) are respectively connected and fixed to the protection connection column (201), and the hanging protection cable (202) and the protection connection column (201) are surrounded together to form a hollow area for a rod (7) to pass through.

2. The anti-falling safety protection mechanism for the pole climbing workbench according to claim 1 is characterized by: At least one end of the hanging protection cable (202) is connected to the protection connection column (201) via a detachable locking structure (4).

3. The anti-falling safety protection mechanism for the pole climbing workbench according to claim 2 is characterized in that: The hanging protection cable (202) comprises a cable core (203) arranged inside for supporting and shaping, and an outer coating protection layer (204) arranged outside the cable core (203).

4. The anti-falling safety protection mechanism for the pole climbing workbench according to claim 3 is characterized by: A damping roller (5) for abutting against the surface of the rod (7) is also installed on the hanging protection cable (202).

5. The anti-falling safety protection mechanism for a pole climbing workbench according to any one of claims 1 to 4, characterized in that: A supporting column (6) extending downward from the workbench body (101) is also provided below the workbench body, and a supporting buffer portion (601) is formed at the bottom of the supporting column (6) for contacting the surface of the rod (7) when the workbench falls in an inclined state.

6. The anti-falling safety protection mechanism for the pole climbing workbench according to claim 5 is characterized in that: The supporting column (6) comprises two parts, a main body section (602) and an anti-collision connecting section (603), and a vibration-damping buffer spring (604) is provided between the main body section (602) and the anti-collision connecting section (603).

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