Safety protection device

Abstract

The utility model provides a safety protection device, and relates to the technical field of construction protection devices, the safety protection device is characterized in that insertion holes are formed in the head end parts of four connecting guardrails, and when the four connecting guardrails are horizontally unfolded, four longitudinal supporting insertion rods on two U-shaped insertion frames are correspondingly matched with the four insertion holes in an insertion manner; the four connecting rails are positioned and kept in a horizontal unfolding state; when the four connecting rails are in a folded contraction state, the four longitudinal supporting insertion rods on the two U-shaped insertion frames are arranged on the outer sides of the head ends of the four inclined connecting rails and used for blocking and limiting the four connecting rails in the folded contraction state. The positioning frame can be used for unfolding and positioning the four connecting rails and can also be used for folding and positioning the four connecting rails, the use effect of one device with two purposes is achieved, the situation that one positioning mechanism needs to be arranged for each of the four connecting rails and the whole device in two use forms is omitted, and material consumption and cost for device production and manufacturing are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction protection devices, in particular to a safety protection device. Background Art

[0002] Safety protection fences are the most common safety protection devices in road and bridge construction. They are used to protect the construction area, prevent unauthorized personnel and vehicles from entering, and also protect the safety of construction workers. These fences are usually movable to facilitate adjusting the position according to the construction progress.

[0003] The existing protection devices are mostly set in a retractable and foldable form for easy carrying and transportation. However, for the unfolded and retracted forms of the protection device, a set of positioning mechanisms need to be configured respectively, which is not conducive to simplifying the overall structure of the device and reducing the manufacturing cost. Summary of the Utility Model

[0004] In view of this, the utility model provides a safety protection device to solve the problem that for the unfolded and retracted forms of the protection device, a set of positioning mechanisms need to be configured respectively, which is not conducive to simplifying the overall structure of the device and reducing the manufacturing cost.

[0005] The technical solution proposed by the utility model is as follows: A safety protection device specifically includes: a T-shaped bracket. There are two T-shaped brackets, and two wheels are symmetrically and threadedly fastened to the bottom ends of the horizontal parts of the T-shaped brackets.

[0006] On the vertical parts of the two T-shaped brackets, two connecting bars are rotatably connected at upper and lower intervals. The four connecting bars are arranged in a pairwise staggered manner, and the first ends of the four connecting bars are rotatably connected in pairs. The first ends of the two upper connecting bars and the first ends of the two lower connecting bars both commonly penetrate and are rotatably installed with hinge shafts. The parts of the two hinge shafts protruding from the connecting bars are slidably installed together by the pushing of springs with a positioning frame.

[0007] The positioning frame is integrally composed of two U-shaped insertion frames symmetrically arranged up and down and a vertical connecting rod welded between the two U-shaped insertion frames. Four insertion holes are respectively opened on the first end parts of the four connecting bars. When the four connecting bars are horizontally unfolded, the four vertical support insertion rods on the two U-shaped insertion frames are correspondingly inserted and matched with the four insertion holes to position and hold the four connecting bars in the horizontally unfolded state. When the four connecting bars are in the folded and retracted state, the four vertical support insertion rods on the two U-shaped insertion frames are respectively arranged outside the first end parts of the four inclined connecting bars to block and limit the four connecting bars in the folded and retracted state.

[0008] Further,

[0009] Reflective warning stickers are symmetrically pasted on the middle parts of the two long sides of the connecting bar.

[0010] Furthermore,

[0011] A shaft ring is arranged in the middle of the horizontal support part of the U-shaped insertion frame, and the shaft ring is pushed and slidably matched with the hinge shaft by a spring.

[0012] Furthermore,

[0013] The top end of the vertical connecting rod is fixedly welded to the upper shaft ring, and the bottom end is fixedly welded to the lower shaft ring.

[0014] Furthermore,

[0015] The upright part of the T-shaped bracket is welded to two L-shaped connecting pieces at intervals in the upper and lower parts.

[0016] Furthermore,

[0017] The tail end of the connecting rail is rotatably connected to the L-shaped connecting piece.

[0018] Furthermore,

[0019] The wheels at all four locations are universal wheels, and are all provided with brake mechanisms.

[0020] The utility model provides a safety protection device, which has the following beneficial effects:

[0021] In the utility model, the head ends of the four connecting rails are rotatably connected in pairs, and the tail ends are rotatably connected to two T-shaped brackets respectively, so that the four connecting rails can be rotated with multiple degrees of freedom, and can be folded together when idle to shrink the device as a whole, so as to facilitate the transportation of the device.

[0022] In addition, through two U-shaped insertion frames, the positioning frame can be used to implement the expansion positioning of the four connecting railings, and can also be used to implement the folding positioning of the four connecting railings, which has the effect of using one device for two purposes. It eliminates the need to configure a set of positioning mechanisms for the four connecting railings and the two usage forms (expanded and retracted) of the device as a whole, which helps to simplify the overall structure of the device and reduce the consumables and costs of the device production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0024] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0025] In the attached picture:

[0026] Figure 1 The overall front side structural schematic diagram of the utility model is shown;

[0027] Figure 2 The overall rear side structure schematic diagram of the utility model is shown;

[0028] Figure 3 A schematic diagram of the overall folding and contracting state of the utility model is shown;

[0029] Figure 4 It shows a schematic diagram of the rear structure of the utility model in an overall folded and contracted state;

[0030] Figure 5 A schematic diagram of the positioning frame structure of the utility model is shown;

[0031] Figure 6 A schematic diagram of the hinge shaft structure of the utility model is shown;

[0032] Reference numerals list

[0033] 1. T-shaped bracket; 101. wheel; 102. L-shaped connecting piece;

[0034] 2. Connecting guardrail; 201. Reflective warning sticker; 202. Socket;

[0035] 3. Articulated shaft;

[0036] 4. Positioning frame; 401. U-shaped insert frame; 402. Vertical connecting rod. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Please refer to Figures 1 to 6 , Embodiment 1:

[0039] The utility model proposes a safety protection device, comprising: a T-shaped bracket 1, a wheel 101, an L-shaped connecting piece 102, a connecting bar 2, a reflective warning sticker 201, a plug hole 202, a hinge shaft 3, a positioning frame 4, a U-shaped plug frame 401, and an upright connecting rod 402. The T-shaped bracket 1 is provided at two locations, and the bottom end of the horizontal part of the T-shaped bracket 1 is symmetrically threaded with two wheels 101;

[0040] Wherein, two connecting railings 2 are rotatably connected at upper and lower intervals on the vertical parts of the two T-shaped brackets 1, the four connecting railings 2 are arranged in a staggered manner in pairs, and the first ends of the four connecting railings 2 are rotatably connected in pairs; the first ends of the two upper connecting railings 2 and the first ends of the two lower connecting railings 2 are all rotatably installed through a hinge shaft 3 in common, and the parts of the two hinge shafts 3 protruding from the connecting railings 2 are slidably installed through the spring pushing in common with a positioning frame 4;

[0041] The first ends of the four connecting railings 2 are rotatably connected in pairs, and the tail ends are respectively rotatably connected to the two T-shaped brackets 1, which enables the four connecting railings 2 to rotate with multiple degrees of freedom and can be folded with each other when idle to shrink the whole device, facilitating the transportation of the device;

[0042] The positioning frame 4 is integrally composed of two U-shaped insertion frames 401 arranged symmetrically up and down and a vertical connecting rod 402 welded between the two U-shaped insertion frames 401; insertion holes 202 are respectively opened on the first end parts of the four connecting railings 2. When the four connecting railings 2 are horizontally unfolded, the four longitudinal support insertion rods on the two U-shaped insertion frames 401 are inserted and matched with the four insertion holes 202 correspondingly to position and hold the four connecting railings 2 in the horizontally unfolded state; when the four connecting railings 2 are in the folded and shrunk state, the four longitudinal support insertion rods on the two U-shaped insertion frames 401 are respectively arranged outside the first end parts of the four connecting railings 2 in an inclined state, used to block and limit the four connecting railings 2 in the folded and shrunk state;

[0043] When the two U-shaped insertion frames 401 insert and position the four connecting railings 2 in the horizontally unfolded state, the whole device can be positioned in the unfolded and used state, and when the two U-shaped insertion frames 401 insert and position the four connecting railings 2 in the folded and shrunk state, the whole device can be positioned in the shrunk and idle use state; pulling and sliding the positioning frame 4 away from the connecting railings 2 will drive the two U-shaped insertion frames 401 to be pulled away from the four connecting railings 2, loosen the four connecting railings 2, and perform contraction and folding on the four connecting railings 2;

[0044] Through the two U-shaped insertion frames 401, the positioning frame 4 can be used to expand and position the four connecting railings 2 and can also perform folding positioning on the four connecting railings 2, having the use effect of one device with two functions, saving the need to configure a set of positioning mechanisms respectively for the two use forms (expansion and contraction) of the four connecting railings 2 and the whole device, which helps to simplify the overall structure of the device and reduce the consumables and costs of device production and manufacturing.

[0045] Preferably,

[0046] A collar is arranged at the middle position of the cross撑 part of the U-shaped insertion frame 401, and the collar is slidably matched with the hinge shaft 3 through spring pushing.

[0047] Preferably,

[0048] The top end of the vertical connecting rod 402 is fixedly welded to the upper shaft ring, and the bottom end is fixedly welded to the lower shaft ring.

[0049] Preferably,

[0050] The upright part of the T-shaped bracket 1 is welded to two L-shaped connecting pieces 102 at intervals in the upper and lower parts.

[0051] Preferably,

[0052] The tail end of the connecting rail 2 is rotatably connected to the L-shaped connecting piece 102 .

[0053] Preferably,

[0054] The wheels 101 at four locations are all universal wheels, and are all provided with brake mechanisms.

[0055] Based on the first embodiment, the second embodiment:

[0056] Reflective warning stickers 201 are symmetrically posted on the middle part of the two long sides of the connecting railing 2. The reflective warning stickers 201 can reflect light at night or in low light conditions, significantly improving the visibility of the protective device and helping to ensure the safety of construction workers and passers-by at night.

[0057] Working principle: When in use, first pull the two T-shaped brackets 1 towards each other to unfold the protective device as a whole, and then use the positioning frame 4 to position the protective device as a whole in the unfolded state. After the protective device is unfolded and positioned, it is transferred to the position where safety protection is required on the construction section for use;

[0058] The head ends of the connecting rails 2 at four locations are rotatably connected in pairs, and the tail ends are rotatably connected to two T-shaped brackets 1 respectively, so that the connecting rails 2 at four locations can rotate with multiple degrees of freedom, and can be folded together when idle to shrink the device as a whole, so as to facilitate the transportation of the device;

[0059] When the four connecting railings 2 are horizontally unfolded, the four longitudinal support insertion rods on the two U-shaped insertion frames 401 are correspondingly inserted and matched with the four insertion holes 202 to position and hold the four connecting railings 2 in the horizontally unfolded state; when the four connecting railings 2 are in the folded and contracted state, the four longitudinal support insertion rods on the two U-shaped insertion frames 401 are arranged outside the first end parts of the four connecting railings 2 in an inclined state, and are used to block and limit the four connecting railings 2 in the folded and contracted state; when the two U-shaped insertion frames 401 insert and position the four connecting railings 2 in the horizontally unfolded state, the whole device can be positioned in the unfolded and in-use state, and when the two U-shaped insertion frames 401 insert and position the four connecting railings 2 in the folded and contracted state, the whole device can be positioned in the contracted and idle use state; pulling and sliding the positioning frame 4 away from the connecting railing 2 will drive the two U-shaped insertion frames 401 to separate from the four connecting railings 2, release the four connecting railings 2, and perform contraction and folding on the four connecting railings 2.

[0060] The reflective warning sticker 201 can reflect light at night or under low light conditions, significantly improving the visibility of the protective device and ensuring the safety of construction workers and passing pedestrians at night.

[0061] In this article, the following points need attention:

[0062] 1. The attached drawings of the embodiments of the present utility model only relate to the structures involved in the embodiments of the present utility model, and other structures can refer to the general design.

[0063] 2. Without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0064] The above are only the specific implementation manners of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A safety protection device, comprising: T-shaped bracket (1), there are two T-shaped brackets (1) provided, and two wheels (101) are symmetrically screwed and fastened to the bottom end of the horizontal part of the T-shaped bracket (1); It is characterized in that two connecting rails (2) are rotatably connected at upper and lower intervals on the vertical parts of the two T-shaped brackets (1), the four connecting rails (2) are arranged in a pairwise staggered manner, and the first ends of the four connecting rails (2) are rotatably connected in a pairwise manner; the first ends of the two upper connecting rails (2) and the first ends of the two lower connecting rails (2) are all rotatably installed through a hinge shaft (3) together, and the parts of the two hinge shafts (3) protruding from the connecting rails (2) are slidably installed with a positioning frame (4) through spring pushing; The positioning frame (4) is integrally composed of two U-shaped insertion frames (401) symmetrically arranged up and down and a vertical connecting rod (402) welded between the two U-shaped insertion frames (401); insertion holes (202) are opened on the first end parts of the four connecting rails (2), when the four connecting rails (2) are horizontally unfolded, the four longitudinal support insertion rods on the two U-shaped insertion frames (401) are inserted and matched with the four insertion holes (202) correspondingly to position and hold the four connecting rails (2) in the horizontally unfolded state; when the four connecting rails (2) are in the folded and contracted state, the four longitudinal support insertion rods on the two U-shaped insertion frames (401) are arranged outside the first end parts of the four connecting rails (2) in an inclined state to block and limit the four connecting rails (2) in the folded and contracted state.

2. A safety protection device according to claim 1, characterized in that Reflective warning stickers (201) are symmetrically pasted on the middle parts of the two long side edges of the connecting rail (2).

3. A safety protection device according to claim 1, characterized in that A collar is arranged at the middle position of the cross撑 part of the U-shaped insertion frame (401), and the collar is slidably matched with the hinge shaft (3) through spring pushing.

4. A safety protection device according to claim 3, characterized in that The top end of the vertical connecting rod (402) is welded and fixed to the upper collar, and the bottom end is welded and fixed to the lower collar.

5. A safety protection device according to claim 3, characterized in that Two L-shaped connecting pieces (102) are welded at upper and lower intervals on the vertical part of the T-shaped bracket (1).

6. A safety protection device according to claim 5, characterized in that The tail end of the connecting rail (2) is rotatably connected to the L-shaped connecting piece (102).

7. A safety protection device according to claim 1, characterized in that All four wheels (101) are universal wheels and are all provided with brake mechanisms.

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