Municipal road foundation pit safety protection device

Abstract

The utility model discloses a municipal road foundation pit safety protection device which comprises a ball head shell and a ball cavity formed in the ball head shell, a universal ball head is embedded in the ball cavity, a protection rod extending upwards is arranged in the center of the top end of the universal ball head, inverted-T-shaped pipe supports are installed on the two sides of the bottom end of the ball head shell, and the inverted-T-shaped pipe supports are connected with the universal ball head. An annular sinking groove extending downwards is formed in the top end of the ball head shell. By installing and using the inverted-T-shaped pipe bracket, the ball head shell, the universal ball head, the protection rod, the elastic return structure and other components, effective protection and prompt functions can be provided in the municipal road foundation pit construction process, and the protection rod can freely deflect when subjected to external collision due to the design of the universal ball head and the elastic return structure; compared with a traditional fixed type protective fence, the design of the protective rod of the universal ball head and the elastic return structure allows the protective rod to deviate during collision, and hard contact of collision is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of foundation pit protection, in particular to a municipal road foundation pit safety protection device. BACKGROUND

[0002] In the municipal road foundation pit repair process, the safety fence as an important safety facility plays multiple key roles. First, it can effectively prevent construction personnel from falling into the foundation pit and reduce the risk of accidents. In the foundation pit repair operation, due to the large depth of the foundation pit and the complex operating environment, construction personnel often operate at the edge of the foundation pit, so the fence can effectively prevent falling. In addition, the fence can also prevent tools, equipment or materials from falling, avoid harming passing pedestrians or vehicles, and protect public safety. Such safety protection devices are generally composed of upright columns, crossbars, grids or fences. The upright column is the main support part, the crossbar is used to connect the upright column and form a frame, and the grid or fence increases the protection performance to prevent objects from falling or personnel from climbing. The fence is often equipped with warning signs and reflective strips to ensure the visibility of the construction area.

[0003] A municipal road foundation pit protection device disclosed in the authorized announcement No. CN219864469U includes a plurality of protection plates, each of which is installed with a connecting block between the top and bottom of the adjacent two protection plates. The bottom of the protection plate is installed with a universal wheel, and the lower part of the connecting block is provided with a connecting plate. The connecting plate and the protection plate are both provided with a connecting port. The connecting plate is installed between the middle parts of the adjacent two protection plates, and the adjacent two connecting ports are connected through a connecting shaft. The connecting shaft is fixed on the connecting block. By rotating the protection plates along the connecting plate, the adjacent two protection plates can be rotated to approach or open, which is convenient for the protection plate to protect the foundation pit. However, the above technical solution mainly uses the protection plate to isolate the outer periphery of the road foundation pit. For the shallow foundation pit of the road, it plays a certain isolating and enclosing role. However, the back of the protection plate is in a supporting and fixed state, and vehicles and pedestrians are prone to collide with the protection plate. That is, for vehicles and pedestrians, the rigid structure of the back of the protection plate lacks sufficient collapse function. Especially in such a complex environment as urban roads, vehicles often drive fast. If a collision occurs, the rigid design of the back of the protection plate cannot effectively reduce the impact force of the impact, thereby causing the risk of vehicle damage and personal injury. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a municipal road foundation pit safety protection device. The protection rod is connected with the ball head shell through the universal ball head and the ball head shell. The elastic return structure in the ball head shell forces the protection rod to be in an upright state. After the ball head shell and the protection rod are fixed on the road surface around the road foundation pit through the convex pipe support, the protection rod prompts and protects the outside of the road foundation pit, thereby solving the problems in the above background technology.

[0005] To achieve the above object, the utility model provides following technical scheme: a municipal road foundation pit safety protection device, including ball head shell and ball cavity that is arranged in ball head shell, the inside of ball cavity is inlayed with universal ball head, and the central position of universal ball head top is provided with the protection pole that extends upwards, the both sides of ball head shell bottom are all installed with convex pipe support, the top of ball head shell is provided with the annular subsidence groove that extends downwards, the inside of annular subsidence groove is provided with the elastic return structure that assists universal ball head, protection pole self-resetting and keeping protection pole in the upright state, the top edge position of ball head shell is installed with rubber sleeve, the top of protection pole is from rubber sleeve and comes out.

[0006] Preferably, the ball head shell is integrally formed with an internally threaded hollow convex column and a hollow support column at each end.

[0007] Preferably, the convex pipe support is bolted and fixed at one end of the surface of the internally threaded hollow convex column and the hollow support column, and through holes are provided at both sides of the bottom end of the convex pipe support.

[0008] Preferably, an externally threaded shaft is rotatably installed inside the hollow support column, one end of the externally threaded shaft penetrates to the outside of the hollow support column, and the internally threaded hollow convex column and the externally threaded shaft are in threaded engagement.

[0009] Preferably, the elastic return structure includes a trapezoidal annular lip integrally formed on the outer circumferential surface of the universal ball head, a plurality of internal recesses annularly and equidistantly arranged inside the trapezoidal annular lip, and a reset spring fixed inside the internal recesses, one end of the reset spring being fixedly connected with the inner wall of one side of the ball head shell.

[0010] Preferably, a corrugated protection pipe is sleeved at one end of the surface of the protection pole, and the top end of the corrugated protection pipe is in contact with the top end of the rubber sleeve.

[0011] Compared with the prior art, the municipal road foundation pit safety protection device has the following advantages: by installing and using the convex pipe support, the ball head shell, the universal ball head, the protection pole, and the elastic return structure, effective protection and prompting functions can be provided during municipal road foundation pit construction, the universal ball head and the elastic return structure allow the protection pole to freely yaw when subjected to external impact, compared with the traditional fixed protection fence, the design of the universal ball head and the elastic return structure allows the protection pole to deviate when impacted, effectively reducing the hard contact of the impact, reducing the impact force on the vehicle, the impact force is dispersed and buffered, which helps to reduce the degree of vehicle damage, especially for fast-moving vehicles, the yaw design can significantly reduce the chain reaction that may be triggered after the impact.

[0012] For pedestrians, hard protective facilities can directly cause collision injury, however, in combination with the design of the universal ball head and the elastic return structure, the protective rod can be offset when impacted, reducing the impact force generated by the collision, so that when the vehicle is out of control or suddenly brakes, the offset of the protective rod can effectively avoid direct collision with pedestrians, and the protective rod can quickly restore to its original state under the action of the elastic return structure, which means that even after an accident, the protection around the foundation pit can still maintain its effectiveness. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 3 It is a three-dimensional sectional structural schematic diagram of the utility model;

[0016] Figure 4 It is a three-dimensional sectional structural schematic diagram of the universal ball head of the utility model;

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the utility model in use.

[0018] In the drawing: 1, ball head shell; 101, ball cavity; 102, annular sunken groove; 2, convex-shaped pipe support; 3, internally threaded hollow convex column; 4, hollow support column; 5, externally threaded shaft; 6, universal ball head; 7, elastic return structure; 701, trapezoidal annular lip; 702, inner recess; 703, reset spring; 8, rubber sleeve; 9, protective rod; 10, corrugated protective pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1-5The utility model provides a kind of embodiment: a kind of municipal road foundation pit safety protection device, including ball head shell 1 and the ball cavity 101 being provided in ball head shell 1 inside, the inside of ball cavity 101 is embedded with universal ball head 6, ball cavity 101 is as the movement, rotating area of universal ball head 6, and the central position at the top of universal ball head 6 is provided with the protection pole 9 extending upwards, the both sides of ball head shell 1 bottom end are all installed with convex letter pipe support 2, the top of ball head shell 1 is provided with the annular subsidence groove 102 extending downwards, the inside of annular subsidence groove 102 is provided with the elastic return structure 7 that auxiliary universal ball head 6, protection pole 9 is self-resetting and keeps protection pole 9 in upright state, annular subsidence groove 102 is the area that the action of elastic return structure 7 leaves, the top edge position of ball head shell 1 is installed with rubber sleeve 8, the top of protection pole 9 is penetrated from rubber sleeve 8 and comes out;

[0021] Elastic return structure 7 includes trapezoidal annular lip 701 integrally formed on the outer peripheral surface of universal ball head 6, a plurality of inner grooves 702 are arranged at equal intervals in the trapezoidal annular lip 701, and a reset spring 703 is fixed in the inner groove 702.

[0022] When the protection pole 9 drives the universal ball head 6 to deviate, the universal ball head 6 will force one or more reset springs 703 to be in a compressed state. When the external force of the protection pole 9 is removed, the reset spring 703 will force the universal ball head 6 and the protection pole 9 to reset, so that the protection pole 9 continues to play a protective role. By restoring the protection pole 9 to its original position, it is ensured that the foundation pit repair area can be continuously protected without frequent maintenance or reinstallation.

[0023] The two ends of the ball head shell 1 are integrally formed with an internally threaded hollow convex column 3 and a hollow support column 4. The convex letter pipe support 2 is bolted and fixed to one end of the surface of the internally threaded hollow convex column 3 and the hollow support column 4. The two sides of the bottom end of the convex letter pipe support 2 are provided with through holes.

[0024] The hollow support column 4 is rotatably installed with an externally threaded shaft 5. One end of the externally threaded shaft 5 penetrates to the outside of the hollow support column 4. The internally threaded hollow convex column 3 and the externally threaded shaft 5 are in threaded cooperation. When a plurality of the devices are connected, the staff takes out a plurality of the devices, so that the externally threaded shaft 5 is screwed and assembled into the internally threaded hollow convex column 3, so that the adjacent two devices can be arranged in the same direction. Thus, whether it is for a smaller traffic flow area or a busy road construction area, the protection pole can be adaptively designed according to different needs, ensuring that the best safety protection can be provided in different construction stages and different traffic flows.

[0025] The surface of the protection rod 9 is sleeved with a corrugated protection pipe 10 at one end, the top end of the corrugated protection pipe 10 is in contact with the top end of the rubber sleeve 8, the rubber sleeve 8 is fixed at the top end of the ball head shell 1, so that the universal ball head 6 works in a sealed chamber, and the corrugated protection pipe 10 cooperates with the rubber sleeve 8 to further seal the root of the protection rod 9, so as to reduce the influence of dust in the road environment and ensure the working sustainability of the universal ball head 6, the protection rod 9 and the elastic return structure 7.

[0026] The staff can install a conspicuous mark on the protection rod 9, especially at night or in dim light, the reflective material can greatly improve the visibility of the protection facility, so that passing vehicles and pedestrians can be aware in time and take corresponding avoidance measures; the height and spacing design of the protection rod 9 can also effectively remind pedestrians and drivers to pay attention to the construction area and avoid entering the dangerous area.

[0027] The embodiment of the application is mainly applied to the outer periphery of the shallow municipal road foundation pit. First, the staff needs to check whether all the parts of the protection facility are complete, including the convex pipe support 2, the ball head shell 1, the universal ball head 6, the protection rod 9 and the elastic return structure 7, etc., to ensure that these parts meet the design requirements and are not damaged or missing, then according to the specific position, shape and traffic flow of the foundation pit, the installation amount and installation position of the protection device are determined, the ball head shell 1 is firmly fixed on the road where the foundation pit is located through the convex pipe support 2 and the ground nail, at this time, it is necessary to ensure that the convex pipe support 2 is firm and reliable to support the use of the subsequent protection rod 9, the connection of the ball head shell 1 and the universal ball head 6 is the core of the flexibility and deflection capacity of the protection rod 9, after the staff firmly fixes the ball head shell 1 through the convex pipe support 2, it is ensured that the universal ball head 6 can rotate freely, so that the protection rod 9 can deflect when it is impacted by external force, thereby reducing the harm to vehicles and pedestrians, when the external vehicle collides with the protection rod 9, the protection rod 9 will deflect due to the flexibility of the universal ball head 6, reducing the damage of the impact force to the vehicle, thereby avoiding the occurrence of secondary accidents, at the same time, the elastic return structure 7 ensures that the protection rod 9 can quickly recover to the upright state after separating from the vehicle, maintaining the continuous protection effect.

Claims

1. A safety protection device for municipal road foundation pits, characterized in that: The device includes a ball head shell (1) and a ball cavity (101) inside the ball head shell (1). A universal ball head (6) is embedded inside the ball cavity (101), and a protective rod (9) extending upward is provided at the center of the top of the universal ball head (6). A convex tube support (2) is installed on both sides of the bottom end of the ball head shell (1). A downward-extending annular recess (102) is provided at the top of the ball head shell (1). An elastic return structure (7) is provided inside the annular recess (102) to help the universal ball head (6) and the protective rod (9) to reset themselves and keep the protective rod (9) in an upright state. A rubber sleeve (8) is installed at the top edge of the ball head shell (1), and the top of the protective rod (9) passes through the rubber sleeve (8).

2. The municipal road foundation pit safety protection device according to claim 1, characterized in that: The two ends of the ball head shell (1) are integrally formed with internally threaded hollow protrusions (3) and hollow support columns (4).

3. A safety protection device for municipal road foundation pits according to claim 2, characterized in that: The convex-shaped tube support (2) is bolted to one end of the surface of the internal thread hollow convex column (3) and hollow support column (4), and through holes are provided on both sides of the bottom end of the convex-shaped tube support (2).

4. A safety protection device for municipal road foundation pits according to claim 2, characterized in that: The hollow support column (4) is rotatably mounted with an external threaded shaft (5), one end of which extends through to the outside of the hollow support column (4). The internal threaded hollow protrusion (3) and the external threaded shaft (5) are threadedly engaged.

5. A safety protection device for municipal road foundation pits according to claim 1, characterized in that: The elastic return structure (7) includes a trapezoidal annular lip (701) integrally formed on the outer circumferential surface of the universal ball head (6), a plurality of inner grooves (702) arranged in an annular interval inside the trapezoidal annular lip (701), and a return spring (703) fixed inside the inner groove (702). One end of the return spring (703) is fixedly connected to the inner wall of one side of the ball head shell (1).

6. A safety protection device for municipal road foundation pits according to claim 1, characterized in that: One end of the surface of the protective rod (9) is fitted with a corrugated protective tube (10), and the top end of the corrugated protective tube (10) is in contact with the top end of the rubber sleeve (8).

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