A kind of electric safety stretch fence

Abstract

The present invention discloses an electric safety stretch fence net, which relates to the technical field of telescopic fence nets, and comprises a first column and a second column, and a plurality of telescopic vertical shafts distributed in parallel between the first column and the second column, one of the sleeve rods of the two telescopic vertical shafts at both ends is fixedly connected to the first column, and the other is fixedly connected to the second column, and a first sleeve, a second sleeve and a third sleeve are movably sleeved on the sleeve rod of each telescopic vertical shaft in sequence from bottom to top. The telescopic fence has the function of horizontal telescoping, and can also change the folding angle and the folding point of the telescopic fence according to the gaps between other fences, so as to cooperate with other fences to achieve a more flexible effect of the telescopic fence, and when the construction area is in a low-lying area, the height of each inner rod relative to the ground can be increased by folding rods to increase the overall height of the telescopic fence, and the higher fence is easy to be observed to improve the warning effect.

Description

Technical Field

[0001] The invention relates to the technical field of telescopic fence nets, in particular to an electric safety stretch fence net. Background Art

[0002] There are many dangerous areas at power construction sites, such as near high-voltage equipment, cable trench excavation, live working areas, etc. Tensile fences can clearly demarcate the boundaries of the construction area and prevent non-construction personnel from accidentally entering dangerous areas.

[0003] The patent with announcement number CN111622588A discloses a cascade type rigid telescopic fence, which has several unit fences, each unit fence includes a left column, a right column and a retractable fence connecting the left and right columns, a rotating shaft is installed at the bottom of the left and right columns, and a locking bolt for locking the rotating shaft is arranged; the lower end of the rotating shaft is connected to a movable base; a plurality of groups of horizontal fixed columns arranged at the same height are provided on the left and right columns, a locking arm rotatable around the horizontal fixed column is hung on the horizontal fixed column, and two oppositely arranged locking ports are provided on the locking arm; the present invention has a simple structure and ingenious design, realizes seamless isolation and protection of energized equipment and power-off maintenance equipment, and realizes the storage and locking of each unit fence itself and the interconnection between multi-level unit fences, which greatly facilitates the one-time transportation of each unit fence on site.

[0004] In the prior art such as in the above-mentioned patent, each retractable fence can be interconnected and coordinated with each other, which can improve the protective strength of the fence on the one hand and enhance the warning effect on the other hand. Firstly, the fence in the above-mentioned patent can only adjust the fence angle at the column, and the flexibility of the fence is limited; secondly, the height of the fence in the above-mentioned patent is fixed when the fence is unfolded and cannot be adjusted according to construction requirements. Summary of the invention

[0005] The purpose of the present invention is to provide an electric safety stretch fence to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric safety stretch fence net, comprising a first column and a second column, and also comprising: a plurality of telescopic vertical shafts distributed in parallel between the first column and the second column, each telescopic vertical shaft comprising a sleeve rod and an inner rod that are slidably connected, one of the sleeve rods of the two telescopic vertical shafts at both ends is fixedly connected to the first column, and the other is fixedly connected to the second column, the sleeve rod of each telescopic vertical shaft is movably sleeved with a first sleeve, a second sleeve and a third sleeve in sequence from bottom to top, and the inner rod of each telescopic vertical shaft is rotatably connected with a sleeve located at the corresponding third sleeve The fourth sleeve above the tube; for any two adjacent telescopic vertical axes, the one close to the first column is set as the first telescopic vertical axis, and the one close to the second column is set as the second telescopic vertical axis, a first oblique rod is hinged between the third sleeve of the first telescopic vertical axis and the first sleeve of the second telescopic vertical axis, a second oblique rod is hinged between the second sleeve on the first telescopic vertical axis and the fourth sleeve of the second telescopic vertical axis, a first through slot is provided on the first oblique rod, a second through slot is provided on the second oblique rod, and a rotating shaft is movably provided at the intersection of the first through slot and the second through slot; a folding rod is provided between the inner rods of the two adjacent telescopic vertical axes.

[0007] Furthermore, the folding rod includes a first rotating rod and a second rotating rod which are rotationally connected to each other, wherein the end of the first rotating rod is rotationally connected to the inner rod of the first telescopic vertical shaft, and the end of the second rotating rod is rotationally connected to the inner rod of the second telescopic vertical shaft.

[0008] Furthermore, a locking piece is provided between the inner rod and the sleeve rod of at least one of the telescopic vertical shafts.

[0009] Furthermore, the locking member comprises a locking bolt, which is threaded onto a sleeve rod of the telescopic vertical shaft, and an end of the locking bolt can abut and cooperate with an inner rod of the corresponding telescopic vertical shaft.

[0010] Furthermore, the first sleeve is rotatably connected to the corresponding sleeve rod, the second sleeve and the third sleeve are both rotatably and slidably connected to the corresponding sleeve rod, and the fourth sleeve is rotatably connected to the corresponding inner rod.

[0011] Furthermore, the bottom of the sleeve rod of each telescopic vertical shaft is higher than the bottom of the first column.

[0012] Furthermore, rollers are provided at the bottom of sleeve rods of some of the telescopic vertical shafts located between the first column and the second column.

[0013] Furthermore, a counterweight block is detachably connected to the first column and the second column.

[0014] In the above technical scheme, the present invention provides an electric safety stretch fence net. Before the telescopic fence is unfolded, for any two telescopic vertical axes, the first diagonal rod and the second diagonal rod between the first telescopic vertical axis and the second telescopic vertical axis cross to form an obtuse angle toward the first telescopic vertical axis. In the process of the worker unfolding the telescopic fence, the first column and the second column move away from each other and the horizontal distance between the first column and the second column has a maximum value. As the first column and the second column move away from each other, the obtuse angle between the first diagonal rod and the second diagonal rod gradually decreases. When the horizontal distance between the first column and the second column reaches the maximum value, the obtuse angle between the first diagonal rod and the second diagonal rod reaches the minimum value. In the process of the obtuse angle between the first diagonal rod and the second diagonal rod decreasing, the third sleeve at one end of the first diagonal rod slides vertically relative to the corresponding first telescopic vertical axis, and the second sleeve at one end of the second diagonal rod slides vertically relative to the corresponding first telescopic vertical axis. When the telescopic fence is folded according to the gap between the other fences, one telescopic vertical axis is selected as the rotating axis, one worker fixes the telescopic vertical axis, and the other worker moves the second column. During the movement of the column, the second sleeve and the third sleeve on the telescopic vertical shaft rotate relative to the telescopic vertical shaft, and the movement trajectory of the second column is an arc motion with the telescopic vertical shaft as the center. When the folding angle between the first column and the second column reaches the required angle, the second column is stopped from moving. During this process, the degree of intersection obtuse angle between each first oblique rod and the second oblique rod does not change. When the construction area is in a low-lying area and the height of the telescopic fence needs to be increased, the worker slides the inner rods of the telescopic vertical shaft on the first column and the second column respectively to raise the two inner rods relative to the ground height. The increase in the height of the two inner rods relative to the ground will drive the inner rods of each telescopic vertical shaft between the first column and the second column to rise through the folding rod. During the raising of each inner rod, the height of the second oblique rod relative to the ground is also raised, but the height of the first oblique rod remains unchanged. During the raising of the second oblique rod, the rotating shaft at the intersection of the first through slot on the first oblique rod and the second through slot on the second oblique rod will also move. The rotating shaft moves obliquely above the first through slot relative to the first oblique rod, and the rotating shaft moves obliquely below the second through slot relative to the second oblique rod. The degree of intersection obtuse angle between the first oblique rod and the second oblique rod remains unchanged.

[0015] In addition to the ability to be horizontally telescopic, the telescopic fence can also change its folding angle and folding point according to the gaps between other fences to coordinate with other fences to make the telescopic fence more flexible. When the construction area is in a low-lying area, the height of each inner rod relative to the ground can be increased by folding rods to increase the overall height of the telescopic fence. A higher fence is easier to observe and the warning effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 A schematic diagram of the unfolding structure of the telescopic fence provided in an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the unfolding and folding structure of the telescopic fence provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the structure of the telescopic fence being unfolded and raised provided by an embodiment of the present invention;

[0020] Figure 4 A front view of the telescopic fence provided by an embodiment of the present invention;

[0021] Figure 5 A front view of a telescopic fence provided by an embodiment of the present invention being unfolded and raised;

[0022] Figure 6 A front view of any two adjacent telescopic vertical axes provided by an embodiment of the present invention;

[0023] Figure 7 A front elevation view of any two adjacent telescopic vertical shafts provided by an embodiment of the present invention;

[0024] Figure 8 A top view of the telescopic fence provided in an embodiment of the present invention;

[0025] Fig. 9 A top view of the telescopic fence provided by an embodiment of the present invention when it is unfolded and folded;

[0026] Fig.10 The embodiment of the present invention provides Fig. 9 Enlarged structural diagram at A in the middle.

[0027] Description of reference numerals:

[0028] 1. First column; 11. First telescopic vertical axis; 2. Second column; 21. Second telescopic vertical axis; 3. Telescopic vertical axis; 31. Sleeve rod; 311. First sleeve; 312. Second sleeve; 313. Third sleeve; 314. Roller; 32. Inner rod; 321. Fourth sleeve; 4. First oblique rod; 41. First through slot; 5. Second oblique rod; 51. Second through slot; 6. Rotating shaft; 7. Folding rod; 71. First rotating rod; 72. Second rotating rod; 8. Locking piece; 9. Counterweight. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-10 The embodiment of the present invention provides an electric safety stretch fence net, comprising a first column 1, a second column 2, and a plurality of telescopic vertical shafts 3 arranged in parallel between the first column 1 and the second column 2, each telescopic vertical shaft 3 comprising a sleeve rod 31 and an inner rod 32 which are slidably connected, one of the sleeve rods 31 of the two telescopic vertical shafts 3 at both ends is fixedly connected to the first column 1, and the other is fixedly connected to the second column 2, and a first sleeve 311, a second sleeve 312, and a third sleeve 313 are movably sleeved on the sleeve rod 31 of each telescopic vertical shaft 3 from bottom to top in sequence, and each telescopic vertical shaft The inner rod 32 of 3 is rotatably connected with a fourth sleeve 321 located above the corresponding third sleeve 313. Specifically, the first sleeve 311 is rotatably connected to the corresponding sleeve rod 31 or the first sleeve 311 is slidably and rotatably connected to the corresponding sleeve rod 31. When the first sleeve 311 is slidably and rotatably connected to the sleeve rod 31, a limit block is required to be provided at the bottom of the sleeve rod 31 to prevent the first sleeve 311 from falling off the sleeve rod 31. The second sleeve 312 and the third sleeve 313 are both rotatably and slidably connected to the corresponding sleeve rod 31, and the fourth sleeve 321 is rotatably connected to the corresponding inner rod 32.

[0031] For any two adjacent telescopic vertical shafts 3, the one close to the first column 1 is set as the first telescopic vertical shaft 11, and the one close to the second column 2 is set as the second telescopic vertical shaft 21. A first oblique rod 4 is hinged between the third sleeve 313 of the first telescopic vertical shaft 11 and the first sleeve 311 of the second telescopic vertical shaft 21. Specifically, one end of the first oblique rod 4 is rotatably connected to the third sleeve 313 of the first telescopic vertical shaft 11, and the other end is rotatably connected to the first sleeve 311 of the second telescopic vertical shaft 21. A second oblique rod 5 is hinged between the second sleeve 312 on the first telescopic vertical shaft 11 and the fourth sleeve 321 of the second telescopic vertical shaft 21. Specifically, one end of the second oblique rod 5 is rotatably connected to the second sleeve 312 of the first telescopic vertical shaft 11. , the other end is rotatably connected with the fourth sleeve 321 of the second telescopic vertical shaft 21, a first through slot 41 is provided on the first oblique rod 4, and a second through slot 51 is provided on the second oblique rod 5, and a rotating shaft 6 is movably provided at the intersection of the first through slot 41 and the second through slot 51, and a disc is provided at both ends of the rotating shaft 6, the disc is coaxial with the rotating shaft 6, and the circular surface diameter of the disc is larger than the diameter of the circular surface of the rotating shaft 6; a folding rod 7 is provided between the inner rods 32 of the two adjacent telescopic vertical shafts 3, specifically, the folding rod 7 includes a first rotating rod 71 and a second rotating rod 72 that are rotatably connected to each other, the end of the first rotating rod 71 is rotatably connected to the inner rod 32 of the first telescopic vertical shaft 11, and the end of the second rotating rod 72 is rotatably connected to the inner rod 32 of the second telescopic vertical shaft 21.

[0032] Before the telescopic fence is unfolded, for any two telescopic vertical axes 3, the first oblique rod 4 and the second oblique rod 5 between the first telescopic vertical axis 11 and the second telescopic vertical axis 21 cross to form an obtuse angle toward the first telescopic vertical axis 11. When the worker unfolds the telescopic fence, the first column 1 and the second column 2 move away from each other and the horizontal distance between the first column 1 and the second column 2 reaches a maximum value. As the first column 1 and the second column 2 move away from each other, the obtuse angle between the first oblique rod 4 and the second oblique rod 5 gradually decreases. When the horizontal distance between the first column 1 and the second column 2 reaches a maximum value, the obtuse angle between the first oblique rod 4 and the second oblique rod 5 reaches a minimum value. In the process of decreasing the obtuse crossing angle, the first diagonal rod 4 rotates relative to the third sleeve 313 and the first sleeve 311 at both ends of the first diagonal rod 4, the third sleeve 313 at one end of the first diagonal rod 4 slides vertically downward relative to the corresponding first telescopic vertical axis 11, the second diagonal rod 5 rotates relative to the second sleeve 312 and the fourth sleeve 321 at both ends of the second diagonal rod 5, the second sleeve 312 at one end of the second diagonal rod 5 slides vertically relative to the corresponding first telescopic vertical axis 11, and in the process of unfolding the telescopic fence, for the folding rod 7, the angle between the first rotating rod 71 and the second rotating rod 72 gradually increases, and in the process of unfolding the telescopic fence, the first diagonal rod 4 and the second diagonal rod 5 both rotate along the circumference of the rotating shaft 6.

[0033] When the telescopic fence is folded according to the gap between other fences, after the telescopic fence is fully unfolded, a telescopic vertical axis 3 is selected as the rotating axis 6, one worker fixes the telescopic vertical axis 3, and another worker moves the second column 2 or the first column 1. When the second column 2 is moving, the second sleeve 312 and the third sleeve 313 on the telescopic vertical axis 3 rotate relative to the telescopic vertical axis 3, and the movement trajectory of the second column 2 is an arc movement with the telescopic vertical axis 3 as the center. When the folding angle between the first column 1 and the second column 2 reaches the required angle, the second column 2 is stopped from moving. In this process, the degree of the crossing obtuse angle between each first oblique rod 4 and the second oblique rod 5 does not change. When the construction area is in a low-lying area and the height of the telescopic fence needs to be increased, the workers slide respectively. The inner rods 32 of the telescopic vertical shafts 3 on the first column 1 and the second column 2 are moved to raise the two inner rods 32 relative to the ground. The rise of the two inner rods 32 relative to the ground will drive the inner rods 32 of each telescopic vertical shaft 3 between the first column 1 and the second column 2 to rise through the folding rod 7. During the rising of each inner rod 32, the height of the second oblique rod 5 relative to the ground is also raised, but the height of the first oblique rod 4 remains unchanged. During the rising of the second oblique rod 5, the rotating shaft 6 at the intersection of the first through slot 41 on the first oblique rod 4 and the second through slot 51 on the second oblique rod 5 will also move. The rotating shaft 6 moves obliquely above the first through slot 41 relative to the first oblique rod 4, and the rotating shaft 6 moves obliquely below the second through slot 51 relative to the second oblique rod 5. The degree of the crossing obtuse angle between the first oblique rod 4 and the second oblique rod 5 remains unchanged.

[0034] In addition to being able to be horizontally telescopic, the telescopic fence can also change its folding angle and folding point according to the gaps between other fences to coordinate with other fences to make the telescopic fence more flexible. When the construction area is in a low-lying area, the height of each inner rod 32 relative to the ground can be increased by the folding rod 7 to increase the overall height of the telescopic fence. A higher fence is easier to observe and the warning effect is improved.

[0035] Among them, Figure 4 A locking piece 8 is provided between the inner rod 32 and the sleeve rod 31 of at least one telescopic vertical shaft 3. Specifically, the locking piece 8 includes a locking bolt, which is screwed on the sleeve rod 31 of the telescopic vertical shaft 3. The end of the locking bolt can abut and cooperate with the inner rod 32 of the corresponding telescopic vertical shaft 3. The locking pieces 8 are arranged at intervals according to the number of telescopic vertical shafts 3. On the one hand, the locking piece 8 can be used to fix the position of the inner rod 32 relative to the sleeve rod 31. On the other hand, the interval arrangement can prevent the inner rod 32 of the farther telescopic vertical shaft 3 from sliding downward due to gravity.

[0036] Among them, the bottom of the sleeve rod 31 of each telescopic vertical axis 3 is higher than the bottom of the column, and the bottom heights of the first column 1 and the second column 2 are the same. In order to prevent the sleeve rod 31 of the telescopic vertical axis 3 from contacting and rubbing with the ground and damaging the sleeve rod 31 during the process of unfolding the telescopic fence, rollers 314 can be correspondingly set at the bottom of the first column 1 and the second column 2 during the process of moving the first column 1 or the second column 2, which also facilitates the folding of the telescopic fence.

[0037] Among them, the first column 1 and the second column 2 are both detachably connected with counterweight blocks 9. Specifically, each counterweight block 9 is screwed to the first column 1 and the second column 2 by bolts. Strong winds are inevitable during the power construction process. By adding counterweight blocks 9 to the first column 1 and the second column 2, the overall quality of the telescopic fence is improved to reduce the possibility of the fence being blown down by strong winds, so as to prevent passers-by from mistakenly entering the construction area and causing serious consequences.

[0038] In another embodiment provided by the present invention, a roller 314 is provided at the bottom of the sleeve rod 31 of some of the telescopic vertical shafts 3 located between the first column 1 and the second column 2. The arrangement method is: the roller 314 is provided on the sleeve rod 31 of the telescopic vertical shaft 3 at the midpoint of the first column 1 and the second column 2, or the roller 314 is provided at the bottom of the sleeve rod 31 of each telescopic vertical shaft 3, or the roller 314 is provided at the bottom of each sleeve rod 31 in each telescopic vertical shaft 3, etc. For the interval arrangement of the rollers 314, on the one hand, the rollers 314 can facilitate the workers to unfold and store the telescopic fence, and on the other hand, each roller 314 can support the telescopic fence to prevent the several telescopic vertical shafts 3 between the first column 1 and the second column 2 from generating a large load on the folding rod 7 and causing breakage.

[0039] 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. An electric safety stretch fence, comprising a first column and a second column, characterized in that: Also includes: A plurality of telescopic vertical shafts are arranged in parallel between the first column and the second column, each telescopic vertical shaft comprises a sleeve rod and an inner rod which are slidably connected to each other, one of the sleeve rods of the two telescopic vertical shafts at both ends is fixedly connected to the first column, and the other is fixedly connected to the second column, a first sleeve, a second sleeve and a third sleeve are movably sleeved on the sleeve rod of each telescopic vertical shaft in sequence from bottom to top, and a fourth sleeve which is located above the corresponding third sleeve is rotatably connected to the inner rod of each telescopic vertical shaft; For any two adjacent telescopic vertical shafts, the one close to the first column is set as the first telescopic vertical shaft, the one close to the second column is set as the second telescopic vertical shaft, a first oblique rod is hinged between the third sleeve of the first telescopic vertical shaft and the first sleeve of the second telescopic vertical shaft, a second oblique rod is hinged between the second sleeve on the first telescopic vertical shaft and the fourth sleeve of the second telescopic vertical shaft, a first through slot is provided on the first oblique rod, a second through slot is provided on the second oblique rod, and a rotating shaft is movably provided at the intersection of the first through slot and the second through slot; A folding rod is arranged between the inner rods of two adjacent telescopic vertical shafts.

2. The electric safety stretch fence net according to claim 1, characterized in that: The folding rod comprises a first rotating rod and a second rotating rod which are rotatably connected to each other. The end of the first rotating rod is rotatably connected to the inner rod of the first telescopic vertical shaft, and the end of the second rotating rod is rotatably connected to the inner rod of the second telescopic vertical shaft.

3. The electric safety stretch fence net according to claim 1, characterized in that: A locking piece is arranged between the inner rod and the sleeve rod of at least one of the telescopic vertical shafts.

4. The electric safety stretch fence net according to claim 3, characterized in that: The locking member comprises a locking bolt which is threadedly connected to a sleeve rod of the telescopic vertical shaft, and an end of the locking bolt can be abutted and matched with an inner rod of the corresponding telescopic vertical shaft.

5. The electric safety stretch fence net according to claim 1, characterized in that: The first sleeve is rotatably connected to the corresponding sleeve rod, the second sleeve and the third sleeve are both rotatably and slidably connected to the corresponding sleeve rod, and the fourth sleeve is rotatably connected to the corresponding inner rod.

6. The electric safety stretch fence net according to claim 1, characterized in that: The bottom of the sleeve rod of each telescopic vertical shaft is higher than the bottom of the first column.

7. The electric safety stretch fence net according to claim 1, characterized in that: Rollers are arranged at the bottom of sleeve rods of some of the telescopic vertical shafts located between the first column and the second column.

8. The electric safety stretch fence net according to claim 1, characterized in that: The first column and the second column are both detachably connected with a counterweight block.

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