Construction Fence

Abstract

The present invention belongs to the field of building construction, and specifically discloses a construction fence, including a support rod, a cavity is provided at the upper end of the support rod, a rotating shaft is rotatably connected in the cavity, a torsion spring is installed between the rotating shaft and the bottom wall of the cavity, an isolation belt is wound on the rotating shaft, a strip groove connected to the cavity is provided on the support rod, one end of the isolation belt is fixed on the rotating shaft, the other end of the isolation belt extends out of the strip groove and fixes a limit block, and the upper end of the support rod is also provided with a limit groove with an upper end opening for inserting the limit block; a threaded groove is provided in the middle of the rotating shaft, a support rod is threadedly connected to a roller in the threaded groove, an installation groove is provided at the upper end of the support rod, an installation hole connected to the cavity is provided at the bottom of the installation groove, the support rod is slidably connected in the installation hole, the upper end of the support rod extends out of the installation hole and a camera is fixed, and a protective shell for closing the installation groove is installed at the upper end of the support rod. The solution of the present invention can solve the problem that the existing construction fence is inconvenient to store and carry.

Description

Technical Field

[0001] The invention belongs to the field of building construction, and in particular relates to a construction fence. Background Art

[0002] During the construction process, temporary construction fences are usually set up outside the construction site to prevent pedestrians from entering the construction site. Existing construction fences usually use metal brackets and rods welded to form railings of a certain size, and then multiple groups of railings are connected to form a construction fence. This type of construction fence has the following problems: due to weight and size, it is not easy to store and carry. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a construction fence to solve the problem that the existing construction fence is inconvenient to store and carry.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The construction fence comprises a support pole, wherein the upper part of the support pole is provided with a mounting groove, a cavity and an air cavity in sequence from top to bottom, and the upper and lower ends of the cavity are provided with mounting holes connected with the mounting groove and the air cavity respectively; a rotating shaft is rotatably connected in the cavity, a torsion spring is installed between the rotating shaft and the top wall or the bottom wall of the cavity, an isolation belt is wound on the rotating shaft, a strip groove connected with the cavity is provided on the support pole, one end of the isolation belt is fixed on the rotating shaft, and the other end of the isolation belt extends out of the strip groove and is fixed with a limit block, and a limit groove with an upper end opening and for inserting the limit block is provided on the support pole; a threaded groove is provided in the middle of the rotating shaft A support rod is connected with a ball thread in the threaded groove, and the upper and lower ends of the support rod extend into the mounting groove and the air cavity respectively. A camera is fixed to the upper end of the support rod, and a protective shell for closing the mounting groove is installed on the upper end of the support rod; an annular airbag is fixed to the inner wall of the mounting groove, and a sponge layer is detachably connected to the inner wall of the airbag. A skateboard is vertically slidably connected to the air cavity, and the cross-section of the skateboard is rectangular. The lower end of the support rod is fixed to the skateboard, and a gas channel is provided in the support rod. The lower part of the air cavity and the airbag are connected through the gas channel, and a through hole connected to the upper part of the air cavity is provided on the support rod.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] 1. The isolation belt is stored in the cavity. When it is needed, the isolation belt is pulled out through the limit block and inserted into the limit groove on another support rod. Multiple support rods can be combined to form a simple construction fence, which is easy to assemble and carry.

[0008] 2. When the isolation belt is pulled out, the shaft is driven to rotate forward. The shaft and the support rod form a ball thread pair. The shaft rotates forward to drive the support rod to move upward, so that the camera extends out of the installation slot. After the isolation belt forms a construction fence, the camera monitors the vicinity of the isolation belt and monitors the personnel entering and leaving the isolation belt to improve safety. When the isolation belt is stored, the shaft rotates in the opposite direction due to the torsion spring, the support rod moves downward, and the camera is stored in the installation slot, which has a certain protective effect on the camera.

[0009] 3. When the support rod moves downward, it drives the slide plate downward, the space below the air cavity decreases, and the gas below the air cavity enters the airbag through the gas channel. The airbag is inflated, so that the sponge layer better wraps the camera stored in the installation slot, which has a certain protective effect on the camera and prevents the camera from shaking and colliding during transportation. When the support rod moves upward, it drives the slide plate upward, the space below the air cavity increases, the gas in the airbag is extracted, and the airbag shrinks, making it easier for the camera to extend out of the installation slot.

[0010] The up and down movement of the camera and the contraction and expansion of the airbag occur simultaneously, that is, when the camera enters and exits the installation slot, the sponge layer has a certain squeezing and friction force on the camera, which can wipe the dust on the camera and make the subsequent use of the camera more convenient.

[0011] In addition, the sliding range of the skateboard in the air cavity is limited by the height of the air cavity, and the cross-section of the skateboard is rectangular, which prevents the skateboard from rotating in the air cavity. When the skateboard and the upper end of the air cavity are against each other, the skateboard cannot continue to move, and the support rod cannot continue to move upward, thereby limiting the rotation of the shaft. That is, the length of the isolation belt pulled out at this time is the maximum length, thereby avoiding exceeding the rotation range of the torsion spring. The specifications of the torsion spring can be selected according to this limitation, which has a certain protective effect on the torsion spring.

[0012] Furthermore, a first electrode sheet for powering the camera is installed on the inner wall of the mounting hole on the bottom wall of the mounting groove, a second electrode sheet matching the first electrode sheet is fixed to the outer wall of the support rod, an electric wire is connected between the second electrode sheet and the camera, and the electric wire is buried in the support rod; the protective shell includes a solar panel for charging the camera, the solar panel is electrically connected to the first electrode sheet, and the protective shell also includes a shell installed between the lower end of the solar panel and the upper end of the support rod, and the shell is used to open or close the space between the solar panel and the support rod.

[0013] Beneficial effect: The camera is powered by the solar panel, reducing energy consumption. After the support rod moves upward to drive the camera out of the installation slot, the first electrode sheet and the second electrode sheet are attached to each other, the solar panel powers the camera, the camera is retracted into the installation slot, the first electrode sheet and the second electrode sheet are separated, and no longer powered, reducing energy consumption.

[0014] Furthermore, an N-shaped limit card is provided on the isolation belt, and a buckle is provided at the lower end of the limit card for closing the lower end opening of the limit card. A limit needle for inserting into the isolation belt is fixed on one side of the middle part of the limit card, and a clamping ring for clamping the limit needle is fixed on the other side of the middle part of the limit block.

[0015] Beneficial effect: After the isolation belt is pulled out and fixed in the limit groove on another support rod, slide the limit card so that the limit card is stuck in the strip groove, and close the limit card through the buckle, so that the limit needle is inserted into the isolation belt and inserted into the clamping ring. The isolation belt is limited by the limit needle to prevent the isolation belt from being retracted into the cavity under force.

[0016] Furthermore, a plurality of telescopic rods are hingedly connected to the lower part of the support rod along the circumferential direction, and a friction head is fixed to the free end of the telescopic rod; a limiting ring located above the telescopic rod is fixed to the support rod, and the limiting ring is used to limit the deflection angle of the telescopic rod.

[0017] Beneficial effect: After the telescopic rod is deflected, it tilts relative to the support rod. The friction head is contacted with the ground through telescopic extension, and then the lower part of the support rod is supported circumferentially by the telescopic rod. The telescopic rod is limited by the limit ring and cannot be deflected by too large an angle. At the same time, when one side of the support rod is subjected to force, the telescopic rod on the other side of the support rod cannot be deflected due to the limit ring. A stable triangular space is formed between the telescopic rod and the support rod, which improves the support stability of the support rod to a certain extent.

[0018] Further, the sponge layer and the air bag are connected by Velcro.

[0019] Beneficial effect: The sponge layer and the air bag are detachably connected, so the sponge layer can be easily replaced, especially after the dust on the camera is wiped off by the sponge layer, the sponge layer can be replaced regularly.

[0020] Furthermore, a slot for the telescopic rod to be inserted into is provided at the lower part of the support rod, and arc grooves are provided on both sides of the middle part of the slot.

[0021] Beneficial effects: the card slot is provided to facilitate storage, and the arc-shaped slot is provided to facilitate operators to take out the telescopic rod from the card slot by hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present invention.

[0023] Figure 2 for Figure 1 Enlarged view of part A.

[0024] Figure 3 It is a side cross-sectional view of the support rod in Example 1 of the present invention.

[0025] Figure 4 It is a side view of the limit card in embodiment 2 of the present invention.

[0026] Figure 5 It is a side cross-sectional view of the support rod in Example 3 of the present invention.

[0027] Figure 6 It is a top view of the shell in Example 3 of the present invention.

[0028] In the figure: 1. support rod; 2. limiting ring; 3. fixing part; 4. telescopic part; 5. friction head; 6. telescopic rod; 7. card slot; 8. air cavity; 9. slide plate; 10. support rod; 11. cavity; 12. rotating shaft; 13. isolation belt; 14. limiting card; 15. strip groove; 16. air bag; 17. sponge layer; 18. camera; 19. installation groove; 20. clamping part; 21. limiting block; 22. limiting part; 23. limiting groove; 24. gas channel; 25. through hole; 26. limiting needle; 27. clamp ring; 28. buckle; 29. ​​second electrode sheet; 30. connecting groove; 31. first electrode sheet; 32. solar cell panel; 33. fixing sheet; 34. sliding sheet; 35. connecting ring. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0030] Example 1

[0031] like Figure 1 As shown, the construction fence includes a support rod 1, and a plurality of telescopic rods 6 are hingedly connected to the lower part of the support rod 1 along the circumferential direction. A friction head 5 is fixed to the free end of the telescopic rod 6. The friction head 5 is made of rubber or wear-resistant material. A slot 7 is provided at the lower part of the support rod 1 for the telescopic rod 6 to be inserted into. Both sides of the middle of the slot 7 are provided with arc grooves. The provision of the arc grooves facilitates the operator to manually remove the telescopic rod 6 from the slot 7. The telescopic rod 6 includes a fixed portion 3 hinged on the support rod 1 and a telescopic portion 4 threadedly connected to the fixed portion 3. The movement of the telescopic portion 4 on the fixed portion 3 is achieved by rotating the telescopic portion 4 on the fixed portion 3. The length of the telescopic rod 6 can also be adjusted more accurately by means of a thread pair. A limit ring 2 located above the telescopic rod 6 is fixed to the lower part of the support rod 1, and a limit portion 22 with an isosceles trapezoidal longitudinal section is provided at the lower part of the inner wall of the limit ring 2.

[0032] The upper part of the support rod 1 is provided with a mounting groove 19, a cavity 11, and an air cavity 8 in sequence from top to bottom. A connecting mounting hole is provided between the bottom wall of the mounting groove 19 and the cavity 11, and between the bottom wall of the cavity 11 and the air cavity 8. Figure 2As shown, a rotating shaft 12 is rotatably connected in the cavity 11, and the upper and lower ends of the rotating shaft 12 are rotatably connected to the upper and lower ends of the cavity 11 respectively. A torsion spring is installed between the rotating shaft 12 and the bottom wall or the top wall of the cavity 11. The installation method of the torsion spring is the existing technology and is not described in detail in this embodiment. The outer diameter of the rotating shaft 12 is smaller than the inner diameter of the cavity 11, and an isolation belt 13 is wound around the rotating shaft 12. Specifically, the ends of the isolation belt 13 are fixed on the rotating shaft 12, and then the isolation belt 13 is wound around the rotating shaft 12 for multiple turns. A strip groove 15 is provided on one side wall of the support rod 1 and communicates with the cavity 11. A limit groove 23 with an upper end opening is provided on the other side wall of the support rod 1. The cross section of the limit groove 23 is T-shaped, that is, the limit groove 23 includes a clamping portion 20 and a limit portion 22. The width of the clamping portion 20 is greater than the width of the limit portion 22. The isolation belt 13 is wound around the rotating shaft 12 for multiple turns, and the rear end thereof extends out of the support rod 1 through the strip groove 15, and one end of the isolation belt 13 extending out of the strip groove 15 is fixed to the limit groove. The limit block 21 has a width greater than that of the strip groove 15, so that the limit block 21 can clamp the end of the isolation belt 13 outside the support rod 1. The width of the limit block 21 is less than or equal to the width of the clamping portion 20 of the limit groove 23. The width of the limit block 21 is greater than the width of the limit portion 22 of the limit groove 23, so that the limit block 21 is restricted by the limit portion 22 after being inserted into the limit groove 23, thereby realizing the limiting effect of the limit block 21.

[0033] A threaded groove is provided in the middle of the rotating shaft 12, and a support rod 10 is connected to the ball thread in the threaded groove. The upper and lower ends of the support rod 10 pass through the mounting holes, that is, the upper and lower ends of the support rod 10 extend into the mounting groove 19 and the air cavity 8 respectively. A camera 18 is fixed to the upper end of the support rod 10, and a protective shell (not shown in the figure) for closing the mounting groove 19 is installed on the upper end of the support rod 1. Specifically, the protective shell includes a cover body bolted to the upper end of the support rod 1. Figure 2 As shown, an annular airbag 16 is fixed to the inner wall of the mounting groove 19, and a sponge layer 17 is detachably connected to the inner wall of the airbag 16. Specifically, the sponge layer 17 and the airbag 16 are connected by Velcro.

[0034] A slide plate 9 is vertically slidably connected in the air cavity 8. The cross section of the slide plate 9 is rectangular to prevent the slide plate 9 from rotating in the air cavity 8. The lower end of the support rod 10 is fixed to the slide plate 9. Figure 3 As shown, a gas passage 24 is provided in the support rod 1 , the lower part of the air cavity 8 and the annular air bag 16 are communicated through the gas passage 24 , and a through hole 25 communicating with the upper part of the air cavity 8 is provided on the support rod 1 .

[0035] During specific use, the support rod 1 is placed on the ground, the telescopic rod 6 is deflected, and the telescopic part 4 is rotated to extend the telescopic rod 6, so that the friction head 5 is against the ground, and the upper end of the telescopic rod 6 is in contact with the inner wall of the limit ring 2. At this time, a stable triangular space is formed between the telescopic rod 6 and the support rod 1, which improves the supporting stability of the support rod 1 to a certain extent.

[0036] Open the protective shell, pull the isolation belt 13 out of the support rod 1 through the limit block 21, and insert it into the limit groove 23 on another support rod 1. Multiple support rods 1 cooperate to form a construction fence. When the isolation belt 13 is pulled out, it drives the shaft 12 to rotate forward. The shaft 12 and the support rod 10 form a ball thread pair. The forward rotation of the shaft 12 drives the support rod 10 to move upward, so that the camera 18 extends out of the installation groove 19. After the isolation belt 13 forms a construction fence, the camera 18 monitors the vicinity of the isolation belt 13 and monitors the personnel entering and leaving the isolation belt 13 to improve safety. At the same time, when the support rod 10 moves upward, it drives the slide plate 9 to move upward, the space at the bottom of the air cavity 8 increases, and the gas in the air bag 16 is extracted. The air bag 16 shrinks, making it easier for the camera 18 to extend out of the installation groove 19.

[0037] When the isolation belt 13 is stored, the rotating shaft 12 rotates in the opposite direction due to the torsion spring, the support rod 10 moves downward, and the camera 18 is stored in the installation slot 19, which has a certain protective effect on the camera 18. At the same time, the support rod 10 drives the slide plate 9 to move downward, the space at the bottom of the air cavity 8 is reduced, and the gas at the bottom of the air cavity 8 enters the airbag 16 through the gas channel 24. The airbag 16 is inflated and expanded, so that the sponge layer 17 can better wrap the camera 18 stored in the installation slot 19, which has a certain protective effect on the camera 18 and prevents the camera 18 from shaking and colliding during transportation. The up and down movement of the camera 18 and the contraction and expansion of the airbag 16 are carried out simultaneously, that is, when the camera 18 enters and exits the installation slot 19, the sponge layer 17 has a certain squeezing and friction force on the camera 18, which can wipe the dust on the camera 18, making it more convenient for the subsequent use of the camera 18.

[0038] Example 2

[0039] This embodiment is based on the embodiment 1, combined with Figure 4 As shown, the isolation belt 13 is provided with an n-shaped limit card 14, which is made of plastic and has a certain deformation ability. The lower end of the limit card 14 is provided with a buckle 28 for closing the lower end opening of the limit card 14. Specifically, the buckle 28 is a magnetic buckle of the prior art, such as the magnetic buckle commonly used on backpack clothes. The two parts of the magnetic buckle are respectively fixed on both sides of the lower end of the limit card 14. Pressing the lower end of the limit card 14 so that the magnetic buckle cooperates to close the lower end opening of the limit card 14. In actual use, the buckle 28 can also be replaced by a bolt, as long as it can connect the lower ends of the limit block 21. A limit pin 26 for inserting into the isolation belt 13 is fixed on one side of the middle part of the limit card 14, and a clamping ring 27 for clamping the limit pin 26 is fixed on the other side of the middle part of the limit block 21. In actual use, the limit card 14 can be replaced by a fixer that can achieve a fixing effect in the prior art, such as a quilt fixer in the prior art.

[0040] After the isolation belt 13 is pulled out and fixed in the limiting groove 23 on the other support rod 1, the limiting card 14 is slid so that the limiting card 14 is stuck in the strip groove 15, and the limiting card 14 is closed by the buckle 28, so that the limiting needle 26 penetrates the isolation belt 13 and is inserted into the clamping ring 27. The isolation belt 13 is limited by the limiting needle 26 to prevent the isolation belt 13 from being retracted into the cavity 11 under force.

[0041] Example 3

[0042] The difference between this embodiment and embodiment 1 is that the protective shell is set differently. Figure 5 , Figure 6 As shown, a first electrode sheet 31 for energizing the camera 18 is installed on the inner wall of the mounting hole on the bottom wall of the mounting groove 19, and a second electrode sheet 29 matching the first electrode sheet 31 is fixed to the outer wall of the support rod 10. An electric wire is connected between the second electrode sheet 29 and the camera 18, and the electric wire is buried in the support rod 10. The threaded groove is arranged at the lower part of the rotating shaft 12, and a connecting groove 30 is arranged at the upper part of the rotating shaft 12. The inner diameter of the connecting groove 30 is larger than the outer diameter of the support rod 10. When the camera 18 is stored, the second electrode sheet 29 is located in the connecting groove 30, that is, when the camera 18 is stored in the mounting groove 19, the position of the second electrode sheet 29 on the support rod 10 is located in the connecting groove 30. Therefore, it is only necessary to set a threaded section matching the threaded groove below the second electrode sheet 29 on the support rod 10 to avoid collision and wear of the second electrode sheet 29.

[0043] The protective shell includes a solar panel 32 for charging the camera 18. The solar panel 32 is electrically connected to the first electrode sheet 31. The solar panel 32 uses an existing structure, and its installation and connection methods are all existing technologies. In this application, a first electrode sheet 31 and a second electrode sheet 29 are set, which are similar to the switch structure in the prior art. When the first electrode sheet 31 and the second electrode sheet 29 are in contact, it is equivalent to turning on the switch, and the circuit between the solar panel 32 and the camera 18 is connected.

[0044] The protective shell also includes a shell installed between the lower end of the solar panel 32 and the upper end of the support rod 1, and the shell is used to open or close the space between the solar panel 32 and the support rod 1. Specifically, the shell includes a fixed sheet 33 fixed between the solar panel 32 and the support rod 1 and a slide 34 slidably connected to the fixed sheet 33. The fixed sheet 33 and the slide 34 are both arc-shaped. Taking only one slide 34 as an example, the fixed sheet 33 and the slide 34 are both semicircular. When the free end of the slide 34 and the free end of the fixed sheet 33 are attached to each other, the space between the solar panel 32 and the support rod 1 is closed. A connecting ring 35 is provided between the free end of the slide 34 and the free end of the fixed sheet 33, and the two connecting rings 35 are bolted.

[0045] When in use, the slide plate 34 is slid to open the housing, and the support rod 10 moves upward to drive the camera 18 out of the mounting slot 19, and the first electrode sheet 31 and the second electrode sheet 29 are attached to each other, and the solar panel 32 supplies power to the camera 18. At the same time, the housing and the solar panel 32 both have a certain protective effect on the camera 18. The camera 18 is stored in the mounting slot 19, and the first electrode sheet 31 and the second electrode sheet 29 are separated, and no power is supplied, thereby reducing energy consumption.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Construction fence, characterized by: It comprises a support rod, the upper part of which is provided with a mounting groove, a cavity and an air cavity in sequence from top to bottom, and the upper and lower ends of the cavity are respectively provided with mounting holes communicating with the mounting groove and the air cavity; A rotating shaft is rotatably connected in the cavity, a torsion spring is installed between the rotating shaft and the top wall or bottom wall of the cavity, an isolation belt is wound on the rotating shaft, a strip groove communicating with the cavity is provided on the support rod, one end of the isolation belt is fixed on the rotating shaft, the other end of the isolation belt extends out of the strip groove and is fixed with a limit block, and a limit groove with an upper end opening and for inserting the limit block is provided on the support rod; A threaded groove is provided in the middle of the rotating shaft, and a support rod is connected to the ball thread in the threaded groove. The upper and lower ends of the support rod extend into the mounting groove and the air cavity respectively. A camera is fixed on the upper end of the support rod, and a protective shell for closing the mounting groove is installed on the upper end of the support rod; An annular airbag is fixed to the inner wall of the mounting groove, a sponge layer is detachably connected to the inner wall of the airbag, a slide plate is vertically slidably connected to the air cavity, the cross-section of the slide plate is rectangular, the lower end of the support rod is fixed to the slide plate, a gas channel is provided in the support rod, the lower part of the air cavity and the airbag are connected through the gas channel, and a through hole connected to the upper part of the air cavity is provided on the support rod.

2. The construction fence according to claim 1, characterized in that: A first electrode sheet for powering the camera is installed on the inner wall of the mounting hole on the bottom wall of the mounting groove, and a second electrode sheet matching the first electrode sheet is fixed on the outer wall of the support rod. An electric wire is connected between the second electrode sheet and the camera, and the electric wire is buried in the support rod; the protective shell includes a solar cell panel for charging the camera, the solar cell panel is electrically connected to the first electrode sheet, and the protective shell also includes a shell installed between the lower end of the solar cell panel and the upper end of the support rod, and the shell is used to open or close the space between the solar cell panel and the support rod.

3. The construction fence according to claim 1, characterized in that: The isolation belt is sleeved with an N-shaped limit card, the lower end of the limit card is provided with a buckle for closing the lower end opening of the limit card, a limit pin for inserting into the isolation belt is fixed on one side of the middle of the limit card, and a clamping ring for clamping the limit pin is fixed on the other side of the middle of the limit block.

4. The construction fence according to claim 1, characterized in that: A plurality of telescopic rods are hingedly connected to the lower part of the support rod along the circumferential direction, and a friction head is fixed to the free end of the telescopic rod; a limiting ring located above the telescopic rod is fixed on the support rod, and the limiting ring is used to limit the deflection angle of the telescopic rod.

5. The construction fence according to claim 1, characterized in that: The sponge layer and the air bag are connected by Velcro.

6. The construction fence according to claim 4, characterized in that: The lower part of the support rod is provided with a clamping groove for the telescopic rod to be clamped into, and arc grooves are provided on both sides of the middle part of the clamping groove.

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