Assembly type tower crane platform protective fence adding frame device

Abstract

The utility model provides an assembly type tower crane platform protective fence adding frame device which comprises an upper core plate, a lower moving plate, a sliding guide rail pipe, a heightening safety protection frame, an oil-free lining assembly, a fixing nut and a core screw rod, an upper hook with a downward opening is arranged on the upper core plate, and the upper hook is used for hooking a protective fence on an assembly type tower crane platform; a lower hook with an upward opening is arranged on the lower moving plate, and the lower hook is used for hooking a protective fence on the assembled tower crane platform; the multiple sliding guide rail pipes are evenly arranged in the extending direction of the upper core plate, the upper ends of the sliding guide rail pipes are fixedly connected with the upper core plate, and the lower ends of the sliding guide rail pipes perpendicularly penetrate through the lower moving plate in a relatively sliding mode; the heightening safety protection frame is fixedly arranged on the upper core plate; the oil-free bushing assembly is arranged in the middle of the upper core plate; the fixing nut is fixedly welded to the middle of the lower moving plate and is vertically opposite to the oil-free bushing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane equipment protection, in particular to an assembled tower crane platform guardrail adding frame device. Background Art

[0002] The existing tower crane platform guardrail adopts a simple structure, such as a tic-tac-toe bottom frame. These bottom frames are usually connected to the tower crane standard section by wire, and the installation materials are bulky, which has the following problems: it is easy to cause falling objects from high altitudes, the connection stability is poor, and it is easy to rust and break, which brings potential safety hazards to the operators. Utility Model Content

[0003] The main purpose of the utility model is to provide an assembled tower crane platform guardrail additional frame device to at least solve the problems of poor stability, easy rust and breakage caused by the use of wire connections and bulk installation materials for tower crane platform guardrails in the prior art, thereby improving the safety of operators.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a device for adding a guardrail to an assembled tower crane platform, comprising an upper core plate, a lower movable plate, a sliding guide rail tube, an increased safety protection frame, an oil-free bushing assembly, a fixing nut, and a core screw. An upper hook with an opening facing downward is provided on the upper core plate, and the upper hook is used to hook the guardrail on the assembled tower crane platform; a lower hook with an opening facing upward is provided on the lower movable plate, and the lower hook is used to hook the guardrail on the assembled tower crane platform; there are multiple sliding guide rail tubes, and the multiple sliding guide rail tubes are evenly arranged along the extension direction of the upper core plate, the upper end of the sliding guide rail tube is fixedly connected to the upper core plate, and the lower end of the sliding guide rail tube is vertical and can be relative It slides through the lower movable plate; the heightened safety protection frame is fixedly arranged on the upper core plate; the oil-free bushing assembly is arranged in the middle position of the upper core plate; the fixing nut is fixedly welded in the middle of the lower movable plate and is opposite to the oil-free bushing assembly up and down; the upper half of the core screw is a bare rod structure, and the lower half of the core screw is a threaded structure. The upper half of the core screw can be rotatably passed through the oil-free bushing assembly, and the lower half of the core screw can be rotatably passed through the fixing nut; wherein the core screw is used to rotate under the action of external force to adjust the spacing between the upper core plate and the lower movable plate, so that the upper hook and the lower hook are hooked and fixed on the guardrails of different height spacings of the assembled tower crane platform.

[0005] Furthermore, a handle is provided on the top of the core screw, and the handle is used to rotate the core screw under the action of external force.

[0006] Furthermore, a limiting annular protrusion is provided on the circumference of the handle, and a clamping screw assembly opposite to the limiting annular protrusion is provided on the heightened safety protection frame, and the clamping screw assembly is used to limit the core screw through the limiting annular protrusion.

[0007] Furthermore, the clamping screw assembly includes: the upper half of the connecting rod is a bare rod structure, the lower half of the connecting rod is a threaded structure, the connecting rod can be rotatably passed through an enhanced safety protection frame and abut against a limiting annular protrusion; a knob is arranged at the rear end of the connecting rod, wherein the knob is used to rotate under the action of external force to limit the limiting annular protrusion.

[0008] Furthermore, a safety stop ring is provided at the bottom end of the sliding guide rail tube, and the safety stop ring is used to prevent the lower moving plate from detaching from the sliding guide rail tube.

[0009] Furthermore, the number of the sliding guide rail tubes is two, and the two sliding guide rail tubes are symmetrically arranged on both sides of the core screw.

[0010] Furthermore, the upper core plate is a long strip-shaped beam, and there are multiple upper hooks, which are evenly arranged along the extension direction of the upper core plate.

[0011] Furthermore, the lower movable plate is a long strip-shaped crossbeam, and there are multiple lower hooks, which are evenly arranged along the extension direction of the lower movable plate.

[0012] Furthermore, the heightened safety protection frame is a curved tubular structure, and there are two heightened safety protection frames, which are symmetrically arranged on the upper core plate.

[0013] The utility model discloses a device for increasing a guardrail of an assembled tower crane platform, comprising an upper core plate, a lower movable plate, a sliding guide rail tube, a heightened safety guard frame, an oil-free bushing assembly, a fixing nut, and a core screw. An upper hook with an opening facing downward is provided on the upper core plate, and the upper hook is used to hook the guardrail on the assembled tower crane platform; a lower hook with an opening facing upward is provided on the lower movable plate, and the lower hook is used to hook the guardrail on the assembled tower crane platform; there are multiple sliding guide rail tubes, and the multiple sliding guide rail tubes are evenly arranged along the extension direction of the upper core plate, the upper end of the sliding guide rail tube is fixedly connected to the upper core plate, and the lower end of the sliding guide rail tube passes vertically and relatively slidably through the lower movable plate; the heightened safety guard frame is fixedly arranged on the upper core plate; the oil-free bushing assembly The component is arranged in the middle of the upper core plate; the fixing nut is fixedly welded in the middle of the lower movable plate and is opposite to the oil-free bushing assembly up and down; the upper half of the core screw is a bare rod structure, and the lower half of the core screw is a threaded structure. The upper half of the core screw can be rotatably passed through the oil-free bushing assembly, and the lower half of the core screw can be rotatably passed through the fixing nut; wherein, the core screw is used to rotate under the action of external force to adjust the spacing between the upper core plate and the lower movable plate, so that the upper hook and the lower hook are hooked and fixed on the guardrails of different height spacings of the assembled tower crane platform, which solves the problem that the tower crane platform guardrail in the prior art uses iron wire connection and bulk installation materials, which is caused by poor stability and easy rust and breakage, resulting in potential safety hazards to the operators.

[0014] The beneficial effects of the utility model are:

[0015] 1. Improve safety: The upper hook and the lower hook firmly hook the guardrail of the tower crane platform, which increases the safety of high-altitude operations. The safety ring prevents the lower moving plate from falling off the sliding guide rail tube, further ensuring the safety of the user;

[0016] 2. Flexible and adjustable: By turning the upper handle, the height of the lower movable plate can be easily adjusted to adapt to guardrails of different heights. The design of the heightened safety protection frame allows the overall height of the device to be adjusted as needed, which is more flexible;

[0017] 3. Stable load-bearing and fixing structure: The upper core plate is the main load-bearing and fixing part to ensure the stability and load-bearing capacity of the device. The design of the oil-free bushing assembly and the core screw makes the height adjustment smoother and more stable;

[0018] 4. Easy installation and maintenance: The assembly design makes installation and disassembly more convenient and quick, and the close fit between the components reduces the difficulty and cost of maintenance;

[0019] 5. Increase work efficiency: Provide a stable working platform, reduce the difficulty and risk of high-altitude operations, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 It is a first-view structural schematic diagram of an optional assembled tower crane platform guardrail additional frame device according to an embodiment of the utility model;

[0022] Figure 2 It is a second perspective structural schematic diagram of an optional assembled tower crane platform guardrail additional frame device according to an embodiment of the utility model;

[0023] The above drawings include the following reference numerals:

[0024] 10. Upper core plate; 11. Upper hook; 12. Increased safety protection frame; 20. Lower movable plate; 21. Lower hook; 30. Sliding guide tube; 31. Safety retaining ring; 40. Oil-free bushing assembly; 50. Fixing nut; 60. Core screw; 61. Handle; 62. Limiting annular protrusion; 63. Clamping screw assembly; 631. Connecting rod; 632. Knob. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] According to an embodiment of the utility model, an assembled tower crane platform guardrail additional frame device is provided. Figure 1 As shown, it is characterized in that it includes: an upper core plate 10, a lower movable plate 20, a sliding guide rail tube 30, an increased safety protection frame 12, an oil-free bushing assembly 40, a fixing nut 50, and a core screw 60. The upper core plate 10 is provided with an upper hook 11 with an opening facing downward, and the upper hook 11 is used to hook the guardrail on the assembled tower crane platform; the lower movable plate 20, the lower movable plate 20 is provided with a lower hook 21 with an opening facing upward, and the lower hook 21 is used to hook the guardrail on the assembled tower crane platform; the sliding guide rail tube 30, there are multiple sliding guide rail tubes 30, and the multiple sliding guide rail tubes 30 are evenly arranged along the extension direction of the upper core plate 10. The upper end of the sliding guide rail tube 30 is fixedly connected to the upper core plate 10, and the lower end of the sliding guide rail tube 30 vertically and relatively slidably passes through the lower movable plate 20; the heightened safety protection frame 12 is fixedly arranged on the upper core plate 10; the oil-free bushing assembly 40 is arranged in the middle position of the upper core plate 10; the fixing nut 50 is fixedly welded on The middle part of the lower movable plate 20 is opposite to the oil-free bushing assembly 40 up and down; the core screw 60, the upper half of the core screw 60 is a polished rod structure, the lower half of the core screw 60 is a threaded structure, the upper half of the core screw 60 can be rotatably passed through the oil-free bushing assembly 40, and the lower half of the core screw 60 can be rotatably passed through the fixing nut 50; wherein the core screw 60 is used to rotate under the action of external force to adjust the spacing between the upper core plate 10 and the lower movable plate 20, so that the upper hook 11 and the lower hook 2 1 is hooked and fixed on the guardrails of different height intervals on the assembled tower crane platform. The upper hook 11 and the lower hook 21 are used to hook the guardrails on the tower crane platform, providing a stable connection. The open design ensures that the guardrails are firmly installed on the platform and are not easy to fall off. Through the cooperation of the upper and lower hooks, the guardrails are fixed at different height intervals, which enhances the flexibility and adaptability of the device. The sliding guide tube 30 cooperates with the lower moving plate 20 to slide vertically relative to the upper core plate 10, thereby adjusting the height of the guardrail. The setting of multiple guide tubes ensures the stability and uniform force of the entire device. The heightened safety protection frame 12 provides safety protection to prevent accidents such as falling from heights. At the same time, the height of the guardrail is increased, which improves the overall safety. The oil-free bushing assembly 40 reduces the friction when the core screw rotates, improves the smoothness and accuracy of the adjustment, and the cooperation of the fixing nut 50 and the core screw 60 ensures the reliability and stability of the height adjustment.

[0027] Furthermore, if Figure 1As shown, a handle 61 is provided at the top of the core screw 60. The handle 61 is used to rotate the core screw 60 under the action of an external force. The handle is used to manually adjust the core screw 60, which is simple, convenient and labor-saving to operate.

[0028] Furthermore, if Figure 1 As shown, a limiting annular protrusion 62 is provided along the circumference of the handle 61, and a clamping screw assembly 63 opposite to the limiting annular protrusion 62 is provided on the heightened safety protection frame 12. The clamping screw assembly 63 is used to limit the core screw 60 through the limiting annular protrusion 62. The limiting annular protrusion 62 cooperates with the clamping screw assembly 63 to ensure that the core screw 60 will not move accidentally during the adjustment process, thereby improving the safety and accuracy of the adjustment.

[0029] Furthermore, if Figure 1 As shown, the clamping screw assembly 63 includes: a connecting rod 631 and a knob 632. The upper half of the connecting rod 631 is a bare rod structure, and the lower half of the connecting rod 631 is a threaded structure. The connecting rod 631 can be rotatably passed through the heightened safety protection frame 12 and abut against the limiting annular protrusion 62; the knob 632 is arranged at the rear end of the connecting rod 631, wherein the knob 632 is used to rotate under the action of an external force to limit the limiting annular protrusion 62. The upper half of the connecting rod 631 is a bare rod structure, and the lower half is a threaded structure, to ensure smooth and stable rotation and adjustment. The knob 632 is easy to operate manually, and the limiting annular protrusion 62 can be fixed by rotation to prevent the core screw from moving accidentally.

[0030] Furthermore, if Figure 1 As shown, a safety ring 31 is provided at the bottom end of the sliding guide tube 30, and the safety ring 31 is used to prevent the lower movable plate 20 from detaching from the sliding guide tube 30. The safety ring 31 prevents the lower movable plate from detaching from the sliding guide tube 30, thereby increasing the safety of the device and preventing the components from accidentally separating during use.

[0031] Furthermore, if Figure 1 As shown, there are two sliding guide tubes 30, which are symmetrically arranged on both sides of the core screw 60. The symmetrical arrangement of the two sliding guide tubes 30 ensures the balance of the entire structure and prevents tilting or instability during the adjustment process.

[0032] Furthermore, if Figure 2 As shown, the upper core board 10 is a long strip of beam, and there are multiple upper hooks 11. The multiple upper hooks 11 are evenly arranged along the extension direction of the upper core board 10. The multiple upper hooks 11 are evenly arranged along the upper core board, which ensures the stable fixation of the guardrail at different positions and increases the reliability of the entire system.

[0033] Furthermore, if Figure 2As shown, the lower movable plate 20 is a long strip-shaped beam, and there are multiple lower hooks 21. The multiple lower hooks 21 are evenly arranged along the extension direction of the lower movable plate 20. The multiple lower hooks 21 are evenly arranged along the lower movable plate, which ensures the stable fixation of the guardrail at different positions and increases the reliability of the entire system.

[0034] Furthermore, if Figure 1 As shown, the enhanced safety protection frame 12 is a curved tubular structure. There are two enhanced safety protection frames 12, and the two enhanced safety protection frames 12 are symmetrically arranged on the upper core plate 10. The two symmetrically arranged enhanced safety protection frames 12 provide balanced support, further improve the stability and reliability of the system, and reduce the risk of structural deformation or damage due to asymmetric stress.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An assembled tower crane platform guardrail additional frame device, characterized in that: include: An upper core plate (10), wherein an upper hook (11) with an opening facing downward is provided on the upper core plate (10), and the upper hook (11) is used to hook a guardrail on the assembled tower crane platform; A lower movable plate (20), wherein the lower movable plate (20) is provided with a lower hook (21) with an opening facing upward, and the lower hook (21) is used to hook a guardrail on the assembled tower crane platform; A sliding guide tube (30), wherein the sliding guide tube (30) is in plurality and the plurality of sliding guide tubes (30) are evenly arranged along the extension direction of the upper core plate (10), the upper end of the sliding guide tube (30) is fixedly connected to the upper core plate (10), and the lower end of the sliding guide tube (30) vertically and relatively slidably passes through the lower movable plate (20); A heightened safety protection frame (12), wherein the heightened safety protection frame (12) is fixedly arranged on the upper core plate (10); An oil-free bushing assembly (40), wherein the oil-free bushing assembly (40) is arranged in the middle of the upper core plate (10); A fixing nut (50), the fixing nut (50) being fixedly welded to the middle of the lower movable plate (20) and being vertically opposite to the oil-free bushing assembly (40); A core screw (60), wherein the upper half of the core screw (60) is a polished rod structure, and the lower half of the core screw (60) is a threaded structure, the upper half of the core screw (60) is rotatably inserted into the oil-free bushing assembly (40), and the lower half of the core screw (60) is rotatably inserted into the fixing nut (50); The core screw (60) is used to rotate under the action of external force to adjust the distance between the upper core plate (10) and the lower movable plate (20), so that the upper hook (11) and the lower hook (21) are hooked and fixed on the guardrails of different height intervals on the assembled tower crane platform.

2. The device for adding a guardrail to an assembled tower crane platform according to claim 1, characterized in that: A handle (61) is provided at the top of the core screw (60), and the handle (61) is used to rotate the core screw (60) under the action of an external force.

3. The device for adding a guardrail to an assembled tower crane platform according to claim 2, characterized in that: A limiting annular protrusion (62) is provided along the circumference of the handle (61), and a clamping screw assembly (63) opposite to the limiting annular protrusion (62) is provided on the height-enhancing safety protection frame (12). The clamping screw assembly (63) is used to limit the core screw (60) through the limiting annular protrusion (62).

4. The device for adding a guardrail to an assembled tower crane platform according to claim 3, characterized in that: The clamping screw assembly (63) comprises: A connecting rod (631), wherein the upper half of the connecting rod (631) is a bare rod structure, and the lower half of the connecting rod (631) is a threaded structure, and the connecting rod (631) can be rotatably passed through the height-enhancing safety protection frame (12) and abutted against the limiting annular protrusion (62); A knob (632), wherein the knob (632) is arranged at the rear end of the connecting rod (631), wherein the knob (632) is used to rotate under the action of an external force to limit the limiting annular protrusion (62).

5. The device for adding a guardrail to an assembled tower crane platform according to claim 1, characterized in that: A safety ring (31) is provided at the bottom end of the sliding guide rail tube (30), and the safety ring (31) is used to prevent the lower movable plate (20) from detaching from the sliding guide rail tube (30).

6. The device for adding a guardrail to an assembled tower crane platform according to claim 5, characterized in that: The number of the sliding guide rail tubes (30) is two, and the two sliding guide rail tubes (30) are symmetrically arranged on both sides of the core screw (60).

7. The device for adding a guardrail to an assembled tower crane platform according to claim 1, characterized in that: The upper core plate (10) is a long strip-shaped crossbeam, and there are a plurality of upper hooks (11), which are evenly arranged along the extension direction of the upper core plate (10).

8. The device for adding a guardrail to an assembled tower crane platform according to claim 1, characterized in that: The lower movable plate (20) is a long strip-shaped crossbeam, and there are a plurality of lower hooks (21), which are evenly arranged along the extension direction of the lower movable plate (20).

9. The device for adding a guardrail to an assembled tower crane platform according to claim 1, characterized in that: The heightened safety protection frame (12) is a curved tubular structure, and there are two heightened safety protection frames (12). The two heightened safety protection frames (12) are symmetrically arranged on the upper core plate (10).

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