CN209942389U - Hidden closed fence - Google Patents

Abstract

The utility model provides an invisible locking type fence sets up below the apron of transformer substation's high tension cable tunnel, cable layer or similar spatial structure's hole formula access & exit, and its characterized in that opens and to see the rail before the apron, has the characteristic of "stealthy", just can see fold condition's rail after opening the apron, keeps off access & exit department, if not expand the rail can't pass in and out, has the characteristic of "shutting", include: the fence base is arranged at the hole type entrance and exit; the first guardrail is rotatably arranged on the base; two second guardrails are rotatably installed at the left end and the right end of the first guardrail respectively, the first guardrail comprises a first main guardrail and a first auxiliary guardrail, the first auxiliary guardrail is movably installed on the first main guardrail, so that the first guardrail forms a telescopic structure, the second guardrail comprises a second main guardrail and a second auxiliary guardrail, and the second auxiliary guardrail is movably installed on the corresponding second main guardrail, so that the second guardrail forms a telescopic structure.

Description

Hidden closed fence

Technical Field

The utility model relates to a security fence technical field, concretely relates to stealthy closed rail.

Background

For reasons of space saving and cost saving, the high-voltage cable tunnel, the cable layer or other similar space structure of some structural type substations are not accessed through the door type access, but accessed through the hole type access. When the working is not needed, the entrance and the exit are sealed through the cover plate, when the working is needed, the entrance and the exit cover plate are opened, and a temporary fence is built at the entrance and the exit, so that the working personnel are prevented from stepping on the air or falling down, and safety accidents occur.

However, the temporary fences meeting the regulation requirements are time-consuming and labor-consuming to construct and remove, most of the conventional temporary fences do not meet the regulation requirements, are not firm and reliable, and lack safety. In addition, the violation phenomenon that a temporary fence is not built around the access cover plate when the access cover plate is opened is easy to occur, so that no protective measures are provided around the access, and greater potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides an invisible locking type fence, the setting is in the high tension cable tunnel of transformer substation, below the apron of hole formula access & exit of cable layer or similar spatial structure, its characterized in that is opening before the apron, can not see the rail, so have the characteristic of "stealthy", after opening the apron of higher authority, just can see fold condition's rail, the rail keeps off at "access & exit", if can not go into in not spending the rail, can carry out "shutting" to the potential safety hazard that does not keep off the rail around the access & exit effectively, so have the characteristic of "shutting", include: the fence base is arranged at the hole type entrance and exit; the first guardrail is rotatably arranged on the base through a first hinge; and two second guardrails rotatably installed at both ends of the left and right sides of the first guardrail through second hinges, respectively, wherein the first guardrail includes a first main guardrail and a first auxiliary guardrail, the first auxiliary guardrail is movably installed on the first main guardrail along the direction of height of the first guardrail, thereby making the first guardrail form a telescopic structure, the second guardrail includes a second main guardrail and a second auxiliary guardrail, the second auxiliary guardrail is movably installed on the corresponding second main guardrail along the direction of height of the second guardrail, thereby making the second guardrail form a telescopic structure.

The utility model provides a stealthy closed rail can also have such characteristic, wherein, spacing bolt is all installed to the upper end of first main guardrail and every second main guardrail, all is equipped with at least one and spacing bolt matched with spacing bolt hole on the vice guardrail of first pair guardrail and every second for first guardrail and second guardrail accomplish flexible back, spacing bolt can insert in the spacing bolt hole, thereby restrict the displacement of the vice guardrail of first pair guardrail and second in the direction of height of first guardrail.

The utility model provides an invisible closed rail can also have such characteristic, still includes: two guardrail bracing pieces, the one end of guardrail bracing piece is rotatably installed in the upper end of the first guardrail that corresponds, and the other end of guardrail bracing piece has the couple hole, and the couple with couple hole matched with is installed to the upper end of second guardrail for it is downthehole that the couple can be hung into to the couple when stealthy closed rail expandes, thereby fixes the second guardrail.

The utility model provides a stealthy closed rail can also have such characteristic, and wherein, first main guardrail and the main guardrail of second include main guardrail frame and many main guardrail connecting rods, and the upper end and the lower extreme at main guardrail frame are do not installed to the both ends of every main guardrail connecting rod are equallyd divide.

The utility model provides a stealthy closed rail can also have such characteristic, and wherein, the vice guardrail of first pair guardrail and second includes vice guardrail frame and many vice guardrail connecting rods, and the quantity of vice guardrail connecting rod is the same with the quantity of main guardrail connecting rod, and the one end of vice guardrail connecting rod is all installed on vice guardrail frame, and the other end is for inserting in corresponding main guardrail connecting rod.

The utility model provides a stealthy closed rail can also have such characteristic, and wherein, the lower part of first main guardrail and the main guardrail of second all is equipped with the fender foot board.

The utility model provides a stealthy closed rail can also have such characteristic, wherein, keeps off the high more than or equal to 100mm of sole.

The utility model provides a stealthy closed rail can also have such characteristic, and wherein, the pull ring is installed to the upper end of first guardrail.

The utility model provides an invisible closed rail can also have such characteristic, wherein, the width of first guardrail and second guardrail suits with the width of hole formula access & exit, and the height when first guardrail and second guardrail are in the withdrawal state suits with the length of hole formula access & exit, and first guardrail and second guardrail highly equal more than or equal to 1050mm when being in tensile state.

Utility model with the functions and effects

According to the invisible closed fence of the utility model, the base is arranged at the hole type entrance and exit, because the first guardrail is rotatably arranged on the fence base and the two second guardrails are respectively rotatably arranged at the two ends of the first guardrail, so that the first guardrail and the second guardrail can be correspondingly rotated and folded, the invisible closed fence of the utility model is very convenient and labor-saving when being unfolded or folded, the entrance and the exit can be effectively protected when being unfolded, the entrance and the exit are blocked when being folded, the hidden closed fence of the utility model can not be entered from the entrance and the exit when being unfolded, the hidden danger of the hidden fence which is not blocked around the entrance and the exit can be effectively locked, the violation phenomenon that the fence is not built when the cover plate of the entrance and the exit is opened is fundamentally avoided, and the hidden danger that the worker steps on the air or falls is eliminated, the occurrence of safety accidents caused by human reasons can be effectively prevented.

Further, because first guardrail and second guardrail are extending structure, can highly adjust according to the size of access & exit when the expansion state, consequently, the utility model discloses an invisible closed rail can accord with the access & exit of various sizes to the regulation requirement of protection rail when the expansion state, and the security of use is higher, and general degree of use is also wider.

Drawings

Fig. 1(a) and 1(b) are schematic structural views illustrating a deployed state of a hidden closed fence according to an embodiment of the present invention;

fig. 2 is an exploded view of the concealed locking fence according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a limit bolt according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the hidden closed rail according to the embodiment of the present invention in a folded state;

fig. 5 is a top view of the concealed closed rail according to the embodiment of the present invention in a folded state.

Detailed Description

In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand, the following description is combined with the accompanying drawings to specifically describe the invisible closed fence of the utility model.

Fig. 1(a) and 1(b) are schematic structural diagrams of an expanded state of the concealed locking fence according to an embodiment of the present invention, and fig. 2 is a schematic structural exploded view of the concealed locking fence according to an embodiment of the present invention.

As shown in fig. 1(a), 1(b) and 2, the concealed locking fence 100 in the present embodiment is provided at a hole entrance of a substation, and is used for preventing a worker from stepping on or falling off the hole entrance, and includes a fence base 10, a first fence 20, two second fences 30, a fence support rod 40, a first hinge 50 and a second hinge 60. In this embodiment, the hole type entrance is an entrance of a 10k high-voltage cable tunnel in a 66kV substation, the entrance is a 780mm × 780mm square hole type entrance, and a ladder for allowing an operator to enter and exit the high-voltage cable tunnel is arranged at the entrance. In other embodiments, concealed locking enclosure 100 may also be disposed at a cable level access or other similar spatial configuration.

The fence base 10 is installed at the hole-type entrance and exit for installing the first guard rail 20. In this embodiment, the fence base 10 is a square aluminum alloy frame, the fence base 10 has a flange 101 and a horizontal supporting surface 102 extending in the vertical direction, the flange 101 is fixedly installed at the hole-type entrance/exit through an expansion screw, the height of the flange 101 is adapted to the thickness of the first guard rail 20 and the second guard rail 30, and the first guard rail 20 and the second guard rail 30 are placed on the horizontal supporting surface 102 of the base after being folded. The outer diameter of the fence base 10 is adaptive to the size of the hole type entrance and exit, and is 780mm multiplied by 780 mm.

The first fence 20 is rotatably mounted on the fence base by a first hinge 50 and comprises a first main fence 201 and a first secondary fence 202. In this embodiment, the number of the first hinges 50 is 2, and the self-locking hinges in the prior art are adopted, so that the first guardrail 20 can be kept perpendicular to the surface of the hole type entrance and exit in the unfolding state.

The two second guardrails 30 are perpendicular to the hole-type doorway, are rotatably installed at the ends 203 of the left and right sides of the first guardrail 20 by second hinges 60, respectively, and are perpendicular to the first guardrail 20, and include a second main guardrail 301 and a second sub guardrail 302. In this embodiment, the number of the second hinges 60 is 4, and the structure is the same as that of the first hinge 50, so that the second guard rail 30 can be maintained perpendicular to the first guard rail 20 in the unfolded state.

The first guard rail 20 and the two second guard rails 30 form a "U" shaped structure and surround the periphery of the hole type entrance to form a guard rail entrance for entrance and exit of workers, the position of the fence entrance corresponding to the position of the ladder stand of the high voltage cable tunnel.

One end of the guardrail supporting rod 40 is rotatably installed at the upper end of the corresponding first guardrail 20, the other end of the guardrail supporting rod 40 is provided with a hook hole 401, and a hook 402 matched with the hook hole 401 is installed at the upper end of each second guardrail 30, so that the hook 402 can be hung in the corresponding hook hole 401 when the invisible locking fence 100 is unfolded, thereby fixing the second guardrail 30, and making the second guardrail 30 keep being perpendicular to the first guardrail 20 without rotating. In this embodiment, when the first and second guardrails 20 and 30 are folded, the hooks 402 can be similarly hooked into the corresponding hook holes 401, thereby fixing the first and second guardrails 20 and 30 in the folded state.

In the present embodiment, the first guard rail 20 and the second guard rail 30 have the same structure, and the structure and the operation principle of the first guard rail 20 and the second guard rail 30 will be described below by taking the first guard rail 20 as an example.

The first guard rail 20 includes a first main guard rail 201 and a first sub guard rail 202.

First primary guardrail 201 includes a primary guardrail frame 2011 and a plurality of primary guardrail connecting rods 2012.

The main guardrail frame 2011 is an aluminum alloy square frame formed by four aluminum alloy square tubes, wherein the upper and lower square tubes are a first mounting rod 2011a and a second mounting rod 2011b for mounting the main guardrail connecting rod 2012, and the left and right square tubes are a first supporting rod 2011c and a second supporting rod 2011d for mounting the auxiliary guardrail frame 2021 and are hollow aluminum alloy square tubes.

One end of each main guardrail connecting rod 2012 is mounted on a first mounting rod 2011a, and the other end is mounted on a second mounting rod 2011 b. In this embodiment, the main guardrail connecting rod 2012 is a hollow cylindrical aluminum alloy tube.

The first secondary guard rail 202 includes a secondary guard rail frame 2021 and a plurality of secondary guard rail connecting rods 2022.

The sub guard rail frame 2021 is an aluminum alloy frame composed of three aluminum alloy square tubes, wherein the upper square tube is a third mounting rod 2021a for mounting the sub guard rail connecting rod 2022, and the left and right square tubes are a first insertion rod 2021b and a second insertion rod 2021c for inserting into the first supporting rod 2011c and the second supporting rod 2011 d.

One end of each secondary guardrail connecting rod 2022 is mounted on the third mounting rod 2021a, and the other end is an insertion end for insertion into the corresponding primary guardrail connecting rod 2012. In this embodiment, the auxiliary guardrail connecting rods 2022 are hollow cylindrical aluminum alloy tubes, the number of the auxiliary guardrail connecting rods 2022 is the same as that of the main guardrail connecting rods 2012, and the outer diameter of the auxiliary guardrail connecting rods 2022 is adapted to the inner diameter of the main guardrail connecting rods 2012.

Each auxiliary guardrail connecting rod 2022 is inserted into and installed in the corresponding main guardrail connecting rod 2012 to form a sleeve structure, so that the first auxiliary guardrail 202 can move along the height direction of the first guardrail 20 on the first main guardrail 201, and the first guardrail 20 can extend and retract in the height direction of the first guardrail 20. In other embodiments, the first guard rail 20 can be extended or retracted by a mounting structure such as a sliding rail and a sliding groove.

Fig. 3 is a schematic structural diagram of a limiting bolt according to an embodiment of the present invention.

As shown in fig. 3, a limiting bolt 205 is installed at the upper end of the first main guardrail 201, and at least one limiting bolt hole 206 matched with the limiting bolt 205 is formed in the first auxiliary guardrail 202, so that after the first guardrail 20 is stretched, the limiting bolt 205 can be inserted into the limiting bolt hole 206, and the displacement of the first auxiliary guardrail 202 in the height direction of the first guardrail 20 is limited.

The width of the first guardrail 20 is adapted to the size of the hole type entrance, that is, the size of the main guardrail frame 2011 is adapted to the size of the hole type entrance, and the main guardrail frame 2011 is a square aluminum alloy frame 780mm in size, the thickness of the main guardrail frame 2011 is 30mm, and the number of the main guardrail connecting rods 2012 is 5.

The size of the auxiliary guardrail frame 2021 is adapted to the size of the main guardrail frame 2011, the width of the auxiliary guardrail frame 2021 is 780mm, the thickness of the auxiliary guardrail frame 2021 is slightly smaller than that of the main guardrail frame 2011, and the number of the auxiliary guardrail connecting rods 2022 is 5.

The outside diameters of the first and second insertion rods 2021b, 2021c and the secondary guardrail connecting rod 2022 are respectively adapted to the inside diameters of the first and second support rods 2011c, 2011d and the primary guardrail connecting rod 2012, so that the first secondary guardrail 202 can be inserted into the first primary guardrail 201 to form a movable sleeve structure.

The height of the first guardrail 20 in the retraction state is adaptive to the length of the hole type entrance and exit, and is 780mm, and the height of the first guardrail 20 in the extension state is more than or equal to 1050mm, so that the rule requirement of constructing a protective fence at the entrance and exit of the high-voltage cable tunnel is met.

A toe board 204 is also mounted to the lower end of the first guardrail 20 for preventing a worker from inadvertently inserting his or her feet into the space between the guardrail connecting rods during operation, causing a foot step or falling.

In addition, a pull ring 207 is further installed at the upper end of the first guard rail 20, and the pull ring 207 is used for allowing a worker to pull the first guard rail 20 to rotate. In this embodiment, the pull ring 207 is installed at the upper end of the first sub guard rail 202, and in other embodiments, the pull ring 207 may be installed at the upper end of the first main guard rail 201.

Fig. 4 is a schematic structural diagram of a folded state of the concealed locking fence according to an embodiment of the present invention, and fig. 5 is a top view of the folded state of the concealed locking fence according to an embodiment of the present invention.

As shown in fig. 1(a) and 1(b), the hidden latching fence 100 of the present embodiment is located around the hole doorway in a deployed state, thereby preventing a worker from stepping on or falling down at the hole doorway. As shown in fig. 4 and 5, after the completion of the work, the worker can fold the concealed locking fence 100 of the present embodiment, so that the concealed locking fence 100 is received at the hole type entrance and does not occupy an additional space.

The folding and unfolding process of the hidden latching fence 100 of the present embodiment will be described with reference to fig. 1 to 5.

The folding process of the hidden latching fence 100 of the present embodiment is as follows:

step S1 is to open the limit pins 205 on the first guard rail 20 and the second guard rail 30, retract both the first guard rail 20 and the second guard rail 30 to a retracted state, and reinsert the limit pins 205 into the limit pin holes 206.

Step S2, the two second guard rails 30 are rotated toward the direction approaching the first guard rail 20, respectively, so that both the two second guard rails 30 are rotated to overlap the first guard rail 20.

Step S3, the overlapped first guard rail 20 and second guard rail 30 are rotated towards the direction of the fence base 10, so that the first guard rail 20 and second guard rail 30 are rotated onto the horizontal supporting surface 102 of the fence base 10, and the surface of the first guard rail 20 is flush with the surface of the fence base 10 after the rotation is completed.

The unfolding process of the hidden latching fence 100 of the present embodiment is as follows:

step T1, pulling tab 207 rotates first guard rail 20 and second guard rail 30 away from rail base 10, such that first guard rail 20 and second guard rail 30 rotate to be perpendicular to the surface of the cavernous passageway.

And step T2, respectively rotating the two second guardrails 30 in a direction away from the first guardrail 20, so that the two second guardrails 30 are rotated to be perpendicular to the first guardrail 20, and the first guardrail 20 and the second guardrail 30 form a U-shaped structure around the hole-type access opening.

And step T3, opening the limit bolts 205 on the first guardrail 20 and the second guardrail 30, adjusting the first guardrail 20 and the second guardrail 30 to the height meeting the regulation requirement, and inserting the limit bolts 205 into the limit bolt holes 206.

After the hidden latching type fence 100 of the present embodiment is opened, the worker can hang a warning tape or place a warning board at the entrance/exit of the fence defined by the first fence 20 and the second fence 30.

Examples effects and effects

According to the invisible locking type fence of the embodiment, the base is arranged at the hole type entrance and exit, as the first guardrail is rotatably arranged on the base of the fence, and the two second guardrails are respectively rotatably arranged at the two ends of the first guardrail, so that the first guardrail and the second guardrail can be correspondingly rotated and folded, and can be used as a cover plate of the hole type entrance and exit to lock the entrance and exit, the invisible locking type fence of the utility model is very convenient and labor-saving when being unfolded or folded, can effectively protect the entrance and exit when being unfolded, and blocks the entrance and exit when being folded, so that a worker can not unfold the invisible locking type fence of the embodiment to enter from the entrance and exit, can effectively lock the potential safety hazard of the fence which is not blocked around the entrance and exit, and fundamentally avoids the violation phenomenon that the fence is not built when the cover plate of the entrance and exit is opened, the potential safety hazard that the worker steps on the sky or falls is eliminated, and the occurrence of the safety accident that leads to because of the artificial reason can be prevented effectively.

Further, because first guardrail and second guardrail are extending structure, can highly adjust according to the size of access & exit when the expansion state, consequently, the utility model discloses an invisible closed rail can accord with the access & exit of various sizes to the regulation requirement of protection rail when the expansion state, and the security of use is higher, and general degree of use is also wider.

Because spacing bolt is all installed to first main guardrail and the main guardrail of second, all be equipped with spacing bolt hole on the vice guardrail of first pair guardrail and second, consequently, accomplish the regulation back at the staff to first guardrail and second guardrail, can insert spacing bolt in the spacing bolt hole to the displacement of the vice guardrail of restriction first pair guardrail and second on the length direction of first guardrail, make the stealthy closed rail operation of this embodiment simpler, the structure is more firm.

Because the other end that has the guardrail bracing piece has the couple hole, the upper end installation couple of second guardrail, expand the back at the staff to the stealthy closed rail of this embodiment, can hang the couple downthehole, thereby fix the second guardrail, make the second guardrail keep mutually perpendicular with first guardrail, consequently, make the structure of the stealthy closed rail of this embodiment more firm, can not cause the unusual folding of second guardrail because of external factors (for example artificial collision or strong wind weather etc.), the security performance is stronger.

Because first main guardrail and first vice guardrail and the vice guardrail of second main guardrail and second all adopt frame construction, consequently for the structure of stealthy closed rail of this embodiment is simpler under the prerequisite of guaranteeing the security, has reduced the degree of difficulty and the cost of manufacturing.

Because the lower part of first main guardrail and second main guardrail all is equipped with the fender foot board, consequently for the staff can not stretch into the interval between the guardrail connecting rod to the foot at the during operation, cause to step on empty or fall, has improved security and practicality more.

Because the pull ring is installed to the upper end of first guardrail, consequently, when expanding the stealthy closed rail of this embodiment, the staff can rotate first guardrail more easily, and the operation is convenient nimble more.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

For example, the second guardrail in the above-mentioned embodiment is fixed through second hinge and guardrail bracing piece for the second guardrail can keep perpendicular with first guardrail the utility model provides an among the stealthy closed rail, can also be at the lower extreme installation supporting pulley of second guardrail, thereby further support the second guardrail when expanding the state, and let staff's operation convenient more light when folding and expand.

Claims (9)

1. The utility model provides a stealthy closed rail, sets up at transformer substation's high tension cable tunnel, cable layer or similar spatial structure's hole formula entrance and exit, its characterized in that includes:

the fence base is arranged at the hole type entrance and exit;

a first guardrail rotatably mounted on the base by a first hinge; and

two second guardrails which are respectively and rotatably arranged at the left end and the right end of the first guardrail through second hinges,

wherein the first guardrail comprises a first main guardrail and a first auxiliary guardrail,

the first sub guard rail is movably installed on the first main guard rail in a height direction of the first guard rail so that the first guard rail forms a telescopic structure,

the second guard rail includes a second main guard rail and a second sub guard rail,

the second sub guard rail is movably installed on the corresponding second main guard rail in the height direction of the second guard rail, so that the second guard rail forms a telescopic structure.

2. The concealed, closed-end fence according to claim 1, wherein:

wherein the upper ends of the first main guardrail and each second main guardrail are respectively provided with a limiting bolt,

the first auxiliary guardrail and each auxiliary guardrail are provided with at least one limiting bolt hole matched with a limiting bolt, so that after the first guardrail and the second guardrail are stretched, the limiting bolt can be inserted into the limiting bolt hole, and therefore the first auxiliary guardrail and the auxiliary guardrail are limited in displacement in the height direction of the first guardrail.

3. The concealed, closed-end fence according to claim 1, further comprising:

one end of each guardrail supporting rod is rotatably arranged at the upper end of the corresponding first guardrail, the other end of each guardrail supporting rod is provided with a hook hole,

the upper end of the second guardrail is provided with a hook matched with the hook hole, so that the hook can be hung in the hook hole when the invisible closed fence is unfolded, and the second guardrail is fixed.

4. The concealed, closed-end fence according to claim 1, wherein:

wherein the first main guardrail and the second main guardrail comprise main guardrail frames and a plurality of main guardrail connecting rods,

and the two ends of each main guardrail connecting rod are respectively arranged at the upper end and the lower end of the main guardrail frame.

5. The concealed, closed-end fence according to claim 4, wherein:

wherein the first auxiliary guardrail and the second auxiliary guardrail comprise auxiliary guardrail frames and a plurality of auxiliary guardrail connecting rods,

the number of the auxiliary guardrail connecting rods is the same as that of the main guardrail connecting rods,

one end of each auxiliary guardrail connecting rod is arranged on the auxiliary guardrail frame, and the other end of each auxiliary guardrail connecting rod is inserted into the corresponding main guardrail connecting rod.

6. The concealed, closed-end fence according to claim 1, wherein:

and foot blocking plates are arranged at the lower parts of the first main guardrail and the second main guardrail.

7. The concealed, closed pen according to claim 6, wherein:

wherein, the height of the foot blocking plate is more than or equal to 100 mm.

8. The concealed, closed-end fence according to claim 1, wherein:

wherein, the pull ring is installed to the upper end of first guardrail.

9. The concealed, closed-end fence according to claim 1, wherein:

wherein the width of the first guardrail and the second guardrail is adapted to the width of the hole type access opening,

the height of the first guardrail and the second guardrail in the retracted state is adapted to the length of the hole type access opening,

the heights of the first guardrail and the second guardrail in the stretching state are both larger than or equal to 1050 mm.

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