Fence structure for road and bridge excavation sections

Abstract

The present invention discloses a fence structure for a road and bridge excavation section, which relates to the field of road and bridge construction, and comprises a fence body and a crossbar arranged on the ground, wherein the crossbar is provided with a vertical bar connected to the fence body, the crossbar and the vertical bar jointly fix the position of the fence body, and a support bar is arranged between the crossbar and the vertical bar; the support bar is arc-shaped to have elasticity. The fence structure for a road and bridge excavation section provided by the present invention sets the inclined support bar in an arc shape, and since the arc-shaped structure has elastic characteristics, when the fence is hit, the force generated will cause the support bar itself to deform, so as to buffer part of the impact force, thereby protecting the fence.

Description

Technical Field

[0001] The invention relates to the field of road and bridge construction, and in particular to a fence structure used for excavation sections of roads and bridges. Background Art

[0002] As is known, when building a bridge or repairing a sewer, a large pit needs to be dug on the ground. In order to prevent people from falling into the pit and dust pollution as much as possible, a fence structure is usually built around the pit to ensure the safety of commuting while reducing dust pollution.

[0003] For example, the Chinese patent document with the authorization announcement number CN219471742U, the announcement date 2023-08-04, and the name "A New Type of Enclosure Bracket and Enclosure" has a triangular bracket of a vertical support rod, and an enclosure slot and an enclosure pressure piece arranged on the top of the vertical support rod; the enclosure slot is a U-shaped structure; the enclosure slot is fixed on the vertical support rod with the opening facing outward, and the enclosure pressure piece is installed at the opening position of the enclosure slot with a fastening bolt, and one end of the fastening bolt passes through the enclosure pressure piece, the enclosure slot and the vertical support rod in turn, and a threaded fastening nut is arranged. This patent can firmly clamp the enclosure through the cooperation of the enclosure slot, the enclosure pressure piece, the fastening bolts and the fastening nuts, and the enclosure will not shake after installation.

[0004] The shortcomings of the above-mentioned prior art are that general fences are prone to deformation and jamming when subjected to normal impact. Theoretically, the buffering function can be achieved by adding springs, but the fence itself requires a simple structure and easy assembly. Adding springs and other components will undoubtedly increase the complexity of the fence and is not conducive to the installation of the fence. Summary of the invention

[0005] The object of the present invention is to provide a fence structure for a road bridge excavation section to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A fence structure used for a road bridge excavation section, comprising a fence body and a crossbar arranged on the ground, wherein the crossbar is provided with a vertical bar connected to the fence body, the crossbar and the vertical bar jointly fix the position of the fence body, and a support bar is arranged between the crossbar and the vertical bar;

[0008] The support rod is arc-shaped to have elasticity.

[0009] In the above-mentioned fence structure used for the excavated section of a road or bridge, a first fixing portion is provided on the crossbar.

[0010] The above-mentioned fence structure used for the excavated section of a road or bridge, wherein a second fixing portion is arranged on the vertical rod.

[0011] In the above-mentioned fence structure used for the excavated section of a road or bridge, both the first fixing part and the second fixing part are provided with openings.

[0012] The above-mentioned fence structure for the excavated section of a road bridge, the support rod comprises a first section and a second section which are hinged to each other, the end of the first section away from the second section is hinged to the vertical rod, the end of the second section away from the first section is hinged to the horizontal rod, and the vertical rod is rotatably connected to the horizontal rod;

[0013] A locking element is provided between the first section and the second section.

[0014] In the above-mentioned fence structure for the excavated section of a road or bridge, the locking member includes a latch, and the first section and the second section are both provided with a socket adapted to the latch.

[0015] In the above-mentioned fence structure used for the excavation section of a road or bridge, two elastic blocks are arranged on the latch, and an avoidance groove is arranged between the two elastic blocks.

[0016] The above-mentioned fence structure for the excavated section of the road bridge, the vertical rod has a first state for fixing the position of the fence body and a second state for buffering, and a limiting component for fixing the vertical rod in the second state is arranged between the first section and the second section.

[0017] In the above-mentioned fence structure for the excavated section of a road or bridge, the limiting assembly includes a limiting portion arranged on the second section, and when the vertical rod is in the second state, the first section abuts against the limiting portion.

[0018] In the above-mentioned fence structure for the excavated section of a road or bridge, when the fence body is hit, a passive disassembly component is provided between the vertical rod and the first fixing portion for independently detaching the hit fence body.

[0019] In the above technical solution, the fence structure for the excavated section of the road and bridge provided by the present invention sets the inclined support rods into an arc shape. Since the arc structure has elastic characteristics, when the fence is hit, the force generated will cause the support rods themselves to deform to buffer part of the impact force, thereby protecting the fence. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the connection structure between the vertical rod and the horizontal rod in the prior art;

[0022] Figure 2 A schematic diagram of a connection structure between a vertical rod and a horizontal rod provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a connection structure of a vertical rod and a horizontal rod from another perspective provided by another embodiment of the present invention;

[0024] Figure 4 A schematic structural diagram of a vertical rod in a first state provided by yet another embodiment of the present invention;

[0025] Figure 5 A schematic structural diagram of a vertical rod in a second state provided by yet another embodiment of the present invention;

[0026] Figure 6 for Figure 4 A schematic diagram of a partial cross-sectional structure;

[0027] Figure 7 A schematic diagram of a connection structure between a fence body and a crossbar provided in yet another embodiment of the present invention;

[0028] Figure 8 A schematic diagram of the overall structure of a latch provided in yet another embodiment of the present invention;

[0029] Fig. 9 for Figure 7 A schematic diagram of the enlarged local structure in the middle.

[0030] Description of reference numerals:

[0031] 1. Fence body; 2. Horizontal bar; 3. Vertical bar; 4. Support bar; 5. First fixing part; 6. First slot; 7. Second fixing part; 8. Second slot; 9. First section; 10. Second section; 11. Latch; 12. Socket; 13. Elastic block; 14. Avoidance groove; 15. Limiting part; 16. Limiting strip; 17. Abutment bar. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] In the description of the present invention, it is to be understood that Figure 3The position of the middle vertical rod 3 relative to the cross rod 2 is up, and vice versa. The terms "center", "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0034] Reference Figure 1-9 The fence structure for the excavation section of a road or bridge provided in an embodiment of the present invention comprises a fence body 1 and a cross bar 2 arranged on the ground, the cross bar 2 is provided with a vertical bar 3 connected to the fence body 1, the cross bar 2 and the vertical bar 3 jointly fix the position of the fence body 1, a support bar 4 is provided between the cross bar 2 and the vertical bar 3; the support bar 4 is arc-shaped to have elasticity.

[0035] Specifically, the fence structure is a protective device for the road and bridge excavation construction section, which includes a rectangular plate-shaped or mesh-shaped fence body 1, a crossbar 2 and a vertical bar 3. The crossbar 2 is set on the ground, and it forms an L shape with the vertical bar 3. In order to increase the strength of the vertical bar 3, an inclined support rod 4 is set between the vertical bar 3 and the crossbar 2. The fence body 1 is fixed to the crossbar 2 and the vertical bar 3 by bolts and other structures, so that the fence body 1 is vertically fixed around the construction area. This is a prior art and will not be repeated. One of the core innovations of the embodiment of the present invention is that the support rod 4 is set to an arc shape, and the arc-shaped part protrudes toward the direction of the vertical bar 3, and the support rod 4 is preferably made of metal material. The function of the device is that, due to the elastic characteristics of the arc structure, when the fence body 1 is hit, the force generated will cause the support rod 4 itself to deform to buffer part of the impact force, thereby protecting the fence body 1. When the impact force disappears, the support rod 4 automatically resets under the action of the elastic characteristics of the arc structure; moreover, when the fence body 1 is severely hit, the curvature of the support rod 4 will continue to increase, or even break. Moreover, due to the design that the support rod 4 protrudes toward the direction of the vertical rod 3, the support rod 4 can only break in the direction of the fence body 1 to achieve the purpose of directional breaking, thereby minimizing the flying debris of the broken support rod 4 and injuring people, thereby improving safety.

[0036] Preferably, the cross bar 2 is provided with a first fixing portion 5. Specifically, the first fixing portion 5 is in the shape of an elongated strip, which is fixed to one end of the cross bar 2 close to the vertical bar 3, and the first fixing portion 5 is provided with a first card slot 6 adapted to the fence body 1. The purpose of such a setting is that when installing the fence body 1, the ends of two adjacent fence bodies 1 close to each other are inserted into the first card slot 6, and the two ends each occupy half of the space inside the first card slot 6. Under the limiting effect of the side wall of the first card slot 6, the fence body 1 is prevented from tipping over, so that the fence body 1 can be fixed, which is simple and convenient.

[0037] In order to improve the fixing effect of the fence body 1, further, a second fixing portion 7 is provided on the vertical rod 3. Specifically, the second fixing portion 7 is close to the top of the vertical rod 3 and is fixed to the side wall of the vertical rod 3. Two second card slots 8 are symmetrically provided on the second fixing portion 7, and the second card slots 8 are close to the middle of the fence body 1. When the bottom ends of the two adjacent fence bodies 1 are inserted into the first card slot 6, the sides of the fence bodies 1 close to each other are respectively inserted into the two second card slots 8 to limit the sides of the fence body 1, thereby improving the fixing effect of the fence body 1, and it is simple and convenient.

[0038] Furthermore, the first fixing portion 5 and the second fixing portion 7 are both provided with openings. Specifically, the openings, i.e., the entrance ends of the first card slot 6 and the second card slot 8, are provided with inclined surfaces to increase the areas of the entrance positions of the two, thereby facilitating the insertion of the fence body 1 into the first card slot 6 and the second card slot 8.

[0039] As another embodiment of the present invention, the support rod 4 includes a first section 9 and a second section 10 that are hinged to each other, the end of the first section 9 away from the second section 10 is hinged to the vertical rod 3, and the end of the second section 10 away from the first section 9 is hinged to the cross bar 2; a locking piece is arranged between the first section 9 and the second section 10. Specifically, the first section 9 and the second section 10 are both arc-shaped structures, and the first section 9 is longer than the second section 10. The end of the first section 9 close to the second section 10 is provided with a rotating shaft, and the end of the second section 10 close to the first section 9 is provided with a rotating hole, and the rotating hole is connected to the rotation, and the locking piece can be a bolt connection structure, and the bolt connection structure is arranged radially through the rotating shaft, and the radial size of the bolt is smaller than the radial size of the rotating shaft, the first section 9 and the second section 10 hinge position. The purpose of such a setting is that when the fence is transported, the fence body 1 is placed separately from the vertical rod 3, the cross bar 2 and other structures. During the transportation process, in order to reduce the space occupied by the vertical rod 3 and the cross bar 2, the connection position of the first section 9 and the second section 10 is rotated, and the other hinged positions can be rotated synchronously, so that the vertical rod 3 can be locked. It can be folded with the cross bar 2 to reduce its occupied space. When installing the fence, the first section 9 and the second section 10 are rotated in the opposite direction to open the cross bar 2, the vertical bar 3 and the support rod 4, so that the three of them are in a right triangle structure as a whole. Then the position of the first section 9 and the second section 10 is fixed by a locking piece so that the two cannot rotate relative to each other, so that the vertical bar 3 and the cross bar 2 are in an open state, which is convenient for the installation of the fence. When it is severely impacted (such as a vehicle impact), since the size of the locking piece is smaller than the radial size of the rotating shaft, the first section 9 and the second section 10 hinge position, the position of the locking piece will be broken first, so that the broken part of the support rod 4 can be controlled almost accurately, so that the area where the wreckage of the support rod 4 flies out can be controlled to improve safety.

[0040] Preferably, the locking member includes a latch 11, and the first section 9 and the second section 10 are both provided with a socket 12 adapted to the latch 11. Specifically, the socket 12 is opened along the radial direction of the rotating shaft and the end of the second section 10, and when the vertical rod 3 and the horizontal rod 2 are unfolded, the latch 11 is inserted into the socket 12, so that the positions of the first section 9, the second section 10, the horizontal rod 2 and the vertical rod 3 can be fixed.

[0041] The above-mentioned direct plugging method of the plug 11 and the socket 12 may easily cause the plug 11 to fall off from the socket 12. To solve the above-mentioned problem, the plug 11 is further provided with two elastic blocks 13, and an escape groove 14 is provided between the two elastic blocks 13. Specifically, as Figure 8As shown, the elastic block 13 is made of elastic metal material, that is, it has the ability to automatically restore after being deformed by force. It is arranged at the end of the plug pin 11, and the surface is provided with an arc surface. The distance between the ends of the arc surfaces that are close to each other is smaller than the radial dimension of the plug hole 12, and the distance between the ends of the arc surfaces that are relatively far away is larger than the radial dimension of the plug hole 12. The effect of such a setting is that when the plug pin 11 is inserted into the plug hole 12, the end of the plug pin 11 with the elastic block 13 is aligned with the position of the plug hole 12, and then force is applied to press. At this time, under the effect of the arc surface abutting against the edge of the plug hole 12, the two The elastic block 13 is deformed and rotated synchronously toward the avoidance groove 14 to achieve avoidance. When the pin 11 is fully inserted into the socket 12, the elastic block 13 passes through the outside of the socket 12 and automatically resets under the action of its own elastic force. At this time, the plane of the elastic block 13 abuts against the outer peripheral surface of the end of the second section 10, so that the pin 11 is stably plugged into the socket 12 and is not easily separated from the socket 12. When the pin 11 needs to be removed, the two elastic blocks 13 are manually pressed to make the two elastic blocks 13 shrink into the avoidance groove 14 synchronously, and then the pin 11 can be directly pulled out.

[0042] Furthermore, the vertical rod 3 has a first state for fixing the position of the fence body 1 and a second state for buffering, and a limiting component for fixing the vertical rod 3 in the second state is provided between the first section 9 and the second section 10 . Specifically, in the first state, that is, the angle between the vertical rod 3 and the cross rod 2 is a right angle, and in the second state, that is, the angle between the vertical rod 3 and the cross rod 2 is an acute angle (and preferably between 30°-60°). The first fixing portion 5 is preferably made of a metal material that can be deformed. The purpose of such a setting is that in the normal state, the vertical rod 3 is in the first state. At this time, the fence body 1 is also in a vertical state under the action of the first fixing portion 5 and the second fixing portion 7, so as to achieve protection of the excavation section. When the fence body 1 is severely impacted, and at this time, the strong force generated by the side of the fence body 1 on the second slot 8 causes the second fixing portion 7 to deform, so that the fence body 1 is disengaged from the second slot 8, and the pin 11 is also broken. At this time, the support rod 4 rotates toward the direction of the fence body 1. When the vertical rod 3 rotates to the second state, under the action of the limit assembly, the fence body 1 can be transformed from a vertical state to an inclined state, that is, at this time, the fence body 1 is equivalent to a slope, thereby buffering the vehicle to minimize the distance the vehicle moves after the impact.

[0043] Preferably, the limiting assembly includes a limiting portion 15 disposed on the second section 10, and when the vertical rod 3 is in the second state, the first section 9 abuts against the limiting portion 15. Specifically, the limiting portion 15 is a specific position on the second section 10, which is located on the rotation stroke of the first section 9. When the vertical rod 3 rotates from the first state to the second state, the side surface of the first section 9 abuts against the limiting portion 15, so that the first section 9 and the second section 10 are kept at this position, and at this time the vertical rod 3 can be in the second state to achieve a buffering effect.

[0044] When the fence body 1 is installed, multiple fence bodies 1 are connected into a whole through the first fixing part 5 and the second fixing part 7. When a single fence body 1 is hit, it will drive the remaining fence bodies 1 to fall down synchronously. To solve the above problem, further, when the fence body 1 is severely hit, a passive disassembly component is provided between the vertical rod 3 and the first fixing part 5 for making the fence body 1 that has been hit separate. Specifically, the passive disassembly component can be a matching structure of a pressure sensor and a linear reciprocating drive component such as an electric push rod. The effect of such a setting is that when the pressure sensor senses that the fence body 1 has been severely hit, the electric push rod pushes the fence body 1 upward, so that the fence body 1 can be pushed out of the first slot 6, and because the side of the fence body 1 will be hard-detached from the second slot 8, the fence body 1 that has been hit becomes a separate individual. At this time, only the fence body 1 that has been hit will fall down, and the remaining fence bodies 1 will not be driven to fall down, so as to protect the remaining fence bodies 1.

[0045] As another embodiment of the present invention, the passive disassembly assembly includes a limit bar 16 fixed to the fence body 1, and an abutment rod 17 is provided on the vertical rod 3, and the abutment rod 17 abuts against the limit bar 16. Specifically, Figure 7 and Fig. 9As shown, the limit strip 16 is in the shape of a long strip. For a single fence body 1, there are two limit strips 16, which are symmetrically arranged about the fence body 1, and the limit strips 16 protrude from the surface of the fence body 1. The abutment rod 17 is L-shaped, one end of which is fixed to the side of the vertical rod 3, and the edge of the abutment rod 17 close to the limit strip 16 is preferably a cylindrical rod, and the outer circumferential surface of the cylindrical rod abuts against the lower surface of the limit strip 16. The purpose of such a setting is that when installing the fence body 1, the cross bar 2 and the vertical rod 3 are preferentially spread apart and fixed by the pin 11, and the limit strip 16 is overlapped on the edge of the top of the first fixing part 5, and at this time there is a gap between the fence body 1 and the inner bottom wall of the first card slot 6, that is, at this time, the part of the fence body 1 inside the first card slot 6 is in a suspended state. When there are impurities such as stones inside the first card slot 6 , impurities will not contact the bottom end of the fence body 1, so as to avoid the tilt of the fence body 1 caused by the lifting of impurities, thereby improving the installation effect of the fence body 1. When the fence body 1 is severely impacted, the vertical rod 3 will switch from the first state to the second state. During the switching process, the vertical rod 3 will rotate, thereby driving the abutment rod 17 to rotate synchronously. Under the action of the abutment rod 17 and the limit bar 16 abutting, the limit bar 16 and the fence body 1 can be pushed upward, so that the impacted fence body 1 and the first card slot 6 can be passively disintegrated separately to protect the remaining fence bodies 1. That is, the limit bar 16 has the following advantages in this process. First, it improves the installation effect of the fence body 1. Second, it drives the fence body 1 and the first card slot 6 to passively disintegrate to protect the remaining fence bodies 1.

[0046] To sum up, the advantages of setting the support rod 4 as a segmented arc rod are: first, it can buffer slight impact forces; second, it can make the position and direction of the break of the support rod 4 controllable to improve safety; third, it can be folded for easy storage; fourth, after a severe impact, a buffer slope is formed to reduce the distance moved after the impact; fifth, after a severe impact, the impacted fence body 1 is passively disintegrated to protect other fence bodies 1.

[0047] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fence structure for a road bridge excavation section, comprising a fence body and a crossbar arranged on the ground, wherein the crossbar is provided with a vertical bar connected to the fence body, and the crossbar and the vertical bar jointly fix the position of the fence body, characterized in that: A support rod is provided between the cross rod and the vertical rod; The support rod is arc-shaped to be elastic; The crossbar is provided with a first fixing portion; the first fixing portion is in the shape of a long strip, fixed to one end of the crossbar close to the vertical bar, and the first fixing portion is provided with a first slot adapted to the fence body. When installing the fence body, the ends of two adjacent fence bodies close to each other are inserted into the first slot, and the two sides each occupy half of the space inside the first slot; The vertical rod is provided with a second fixing portion, which is close to the top of the vertical rod and fixed to the side wall of the vertical rod. The second fixing portion is symmetrically provided with two second card slots, and the second card slots are close to the middle of the fence body. When the bottom ends of the two adjacent fence bodies are inserted into the first card slots, the sides of the fence bodies close to each other are respectively inserted into the two second card slots. The support rod comprises a first section and a second section which are hinged to each other, one end of the first section away from the second section is hinged to the vertical rod, one end of the second section away from the first section is hinged to the horizontal rod, and the vertical rod is rotatably connected to the horizontal rod; A locking member is provided between the first section and the second section; The vertical rod has a first state for fixing the position of the fence body and a second state for buffering, and a limiting component for fixing the vertical rod in the second state is provided between the first section and the second section; The first state is that the angle between the vertical rod and the horizontal rod is a right angle, and the second state is that the angle between the vertical rod and the horizontal rod is an acute angle; The limiting assembly includes a limiting portion arranged on the second section, and when the vertical rod is in the second state, the first section abuts against the limiting portion; under the action of the limiting assembly, the fence body is transformed from a vertical state to an inclined state, that is, the fence body is equivalent to a slope at this time, thereby buffering the vehicle to minimize the distance the vehicle moves after the collision; When the fence body is hit, a passive disassembly component is provided between the vertical rod and the first fixing portion for making the fence body that has been hit separate from the fence body; The passive disassembly assembly comprises a limit bar fixed to the fence body, and an abutment rod is arranged on the vertical rod, and the abutment rod abuts against the limit bar; The limiting strip is in the shape of a long strip and protrudes from the surface of the fence body. The abutting rod is in the shape of an L, one end of which is fixed to the side of the vertical rod, and the side of the abutting rod close to the limiting strip is a cylindrical rod, and the outer peripheral surface of the cylindrical rod abuts against the lower surface of the limiting strip; When the fence body is severely impacted, the vertical rod will switch from the first state to the second state. During the switching process, the vertical rod will rotate, thereby driving the abutment rod to rotate synchronously. Under the action of the abutment rod and the limit bar abutting against each other, the limit bar and the fence body can be pushed upward, so that the impacted fence body and the first slot can be passively disintegrated separately.

2. The fence structure for road and bridge excavation section according to claim 1, characterized in that: The first fixing portion and the second fixing portion are both provided with openings, and the openings, i.e., the entrance ends of the first card slot and the second card slot are provided with inclined surfaces to increase the area of ​​the entrance positions of the two, thereby facilitating the insertion of the fence body into the first card slot and the second card slot.

3. The fence structure for road and bridge excavation section according to claim 1, characterized in that: The locking member comprises a latch, and both the first section and the second section are provided with a socket matched with the latch.

4. The fence structure for road and bridge excavation section according to claim 3, characterized in that: Two elastic blocks are arranged on the latch, and an avoidance groove is arranged between the two elastic blocks.

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