Temporary closed guardrail

Abstract

The utility model relates to the related technical field of safety guardrails, in particular to a temporary closed guardrail which comprises two installation stand columns, a plurality of supporting columns and a plurality of supporting columns. The bottoms of the mounting stand columns are fixedly connected with balance weight bases, a storage barrel is arranged on one side of one mounting stand column, and a first rotating shaft is arranged in the storage barrel. Under the cooperative action of the mounting stand column, the counterweight base, the storage barrel, the first rotating shaft and the extension mechanism, the overall length of the device can be adjusted according to the intercepting range needed by a user, and the working efficiency of the user is improved; the problems that although the overall length of an existing temporary closed guardrail can be increased in a splicing mode, the overall length of the guardrail cannot be adjusted according to the interception range needed by a user, and when the user needs to conduct interception in a large range, due to the fact that the length of the guardrail is limited, the overall length of the guardrail cannot be adjusted are solved. And a plurality of groups of guardrails need to be spliced, so that the working efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field related to safety guardrails, in particular to a temporary closed guardrail. Background Art

[0002] Guardrails are fences. From the earliest wooden fences, they were obstacles set up by people to keep various livestock. Today, fences often appear in different forms in our lives and have a very wide range of uses. Safety guardrails can generally be divided into fixed and non-fixed types. Fixed safety guardrails are generally installed on the edge of the platform to prevent people from falling from the platform. Non-fixed safety guardrails are generally used to serve as a warning to a certain area within a period of time, and are generally more common in construction sites, highways and other places.

[0003] The utility model patent with the announcement number CN220667193U discloses a closable safety guardrail, which belongs to the technical field related to safety guardrails. It solves the problem that the overall length of the guardrail in the prior art is generally short. When the guardrail needs to surround the warning area, the safety guardrails cannot be quickly connected to each other, and the guardrail may fall down due to the influence of wind when installed outdoors. It includes: a hollow rod, a bearing is embedded in the hollow rod, and a fixing rod is inserted on the bearing, a fixing magnet is embedded on the fixing rod, and a fixing magnet is inserted on the hollow rod. It is equipped with a fixing ring, on which a transfer block is fixedly installed, and a movable rod is inserted into the interior of the hollow rod. The receiving block is driven by a receiving plate fixedly installed at the lower end of the movable rod, so that the receiving block drives the support rod to rotate. When the movable rod moves to the bottom end of the hollow rod, the support rod is in a horizontal state. At the same time, the angle between the connecting rod and the hollow rod is greater than forty-five degrees, which can fix the relative position between the hollow rod and the movable rod when the receiving plate is in contact with the ground. The supporting base is increased by the unfolded support rod, and the hollow rod is prevented from tipping over by increasing the supporting base. At the same time, it is easy to store and install.

[0004] However, the above patent still has shortcomings: although the patent can increase the overall length of the guardrail by splicing, it does not have the function of adjusting the overall length of the guardrail according to the interception range required by the user. As a result, when the user needs to intercept in a large range, due to the limited length of the guardrail, multiple sets of guardrails need to be spliced, and the work efficiency is low. Utility Model Content

[0005] In order to make up for the above shortcomings, the present invention provides a temporary closed guardrail to solve the problem that the existing temporary closed guardrail proposed in the above background technology can increase the overall length of the guardrail by splicing, but it does not have the function of adjusting the overall length of the guardrail according to the interception range required by the user. As a result, when the user needs to intercept in a large range, due to the limited length of the guardrail, multiple groups of guardrails need to be spliced, resulting in low work efficiency.

[0006] The technical solution of the utility model is:

[0007] A temporary closed guardrail comprises: two mounting posts; the bottoms of the mounting posts are fixedly connected to a counterweight base; a storage tube is provided on one side of one of the mounting posts, a first rotating shaft is provided inside the storage tube, both ends of the first rotating shaft pass through the storage tube and are rotatably connected to the storage tube; an extension mechanism that can adjust the overall length of the guardrail is provided on the outer surface of the first rotating shaft; a snap mechanism for quickly assembling the guardrail as a whole is provided inside the mounting posts.

[0008] Preferably, the extension mechanism includes: a non-woven fabric is wrapped around the outer surface of the first rotating shaft, one end of the non-woven fabric is fixedly connected to the first rotating shaft, and the end of the non-woven fabric away from the first rotating shaft passes through the storage cylinder and extends to the limit bar; metal buckles are provided at both ends of the limit bar, and the limit bar is fixedly connected to the non-woven fabric through the metal buckles; a rotating mechanism for automatically storing the non-woven fabric is provided at the bottom end of the storage cylinder.

[0009] Preferably, the rotating mechanism includes: a spring box is fixedly connected to the bottom end of the storage tube, the spring box is rotatably connected to the bottom end of the first rotating shaft, a clockwork spring is arranged inside the spring box, and both ends of the clockwork spring are respectively fixedly connected to the spring box and the first rotating shaft; the top of the storage tube is fixedly connected to the limit box, the limit box is rotatably connected to the top end of the first rotating shaft, a ratchet is arranged inside the limit box, the ratchet is fixed to the outer surface of the first rotating shaft, one side of the ratchet is engaged with a ratchet, the end of the ratchet away from the ratchet passes through the limit box and extends to the outside of the limit box, the inside of the ratchet is fixedly connected to the second rotating shaft, the two ends of the second rotating shaft are respectively rotatably connected to the limit box and the storage tube, a first spring is arranged between the ratchet and the limit box, and the two ends of the first spring are respectively fixedly connected to the limit box and the ratchet.

[0010] Preferably, the snap mechanism includes: a plug-in strip is fixedly connected to one side of the storage tube close to the mounting column, and the outer surface of the mounting column is provided with six plug-in slots, and the plug-in strip and the limit strip are adapted to the plug-in slots; the mounting column is provided with two ball grooves close to the plug-in slots, and steel balls are provided inside the ball grooves, and the interior of the mounting column is slidably connected to a lifting rod, and the outer surface of the lifting rod is provided with two movable grooves, and the plug-in strip and the limit strip are provided with card slots close to the steel balls, and the movable groove and the card slot are adapted to the steel balls.

[0011] Preferably, the bottoms of the lifting rods are fixedly connected to the limit plates, the bottoms of the limit plates are provided with limit rods, the limit rods are respectively fixedly connected to the counterweight bases, and the outer surfaces of the limit rods are sleeved with second springs.

[0012] Preferably, the limit box is provided with a travel groove near the ratchet, and the travel groove is adapted to the ratchet.

[0013] Preferably, mounting holes are provided at the four corners of the counterweight base, and damping pads are provided at the bottom of the counterweight base, which are fixedly connected to the counterweight base respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Firstly, the utility model can adjust the overall length of the device according to the interception range required by the user through the coordinated action of the installation column, the counterweight base, the storage cylinder, the first rotating shaft and the extension mechanism, thereby improving the work efficiency of the user and solving the problem that the existing temporary closed guardrail can increase the overall length of the guardrail by splicing, but it does not have the function of adjusting the overall length of the guardrail according to the interception range required by the user, resulting in low work efficiency due to the limited length of the guardrail when the user needs to intercept in a large range.

[0016] Secondly, the utility model facilitates users to quickly disassemble and assemble the guardrail as a whole through the cooperation of the installation column, counterweight base, storage cylinder, first rotating shaft and snap mechanism, thereby improving the efficiency of disassembly and assembly of the guardrail, and making the connection of the guardrail more stable after assembly and not easy to loosen, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a temporary closed guardrail of the present invention;

[0018] Figure 2 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0019] Figure 3 This is a schematic side sectional structural diagram of a temporary closed guardrail of the present invention;

[0020] Figure 4 For the utility model Figure 3 The enlarged structural diagram at B in the middle;

[0021] Figure 5 This is a schematic diagram of the connection structure between the first rotating shaft and the clockwork spring of the present invention;

[0022] Figure 6 For the utility model Figure 5 Enlarged structural diagram at point C in the middle.

[0023] In the picture:

[0024] 1. Mounting column; 2. Counterweight base; 3. Storage tube; 4. First rotating shaft; 5. Extension mechanism; 6. Snap mechanism; 7. Non-woven fabric; 8. Limit strip; 9. Metal buckle; 10. Rotating mechanism; 11. Spring box; 12. Clockwork spring; 13. Limit box; 14. Damping pad; 15. Ratchet; 16. Ratchet; 17. Second rotating shaft; 18. First spring; 19. Ball groove; 20. Steel ball; 21. Movable groove; 22. Snap slot; 23. Limit plate; 24. Limit rod; 25. Second spring; 26. Travel groove; 27. Mounting hole; 28. Connecting slot; 29. Connecting strip; 30. Lifting rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 6 The present invention describes the above technical solution in detail through the following embodiments:

[0027] A temporary closed guardrail comprises: two mounting posts 1; the bottoms of the mounting posts 1 are fixedly connected to a counterweight base 2, a storage tube 3 is provided on one side of one of the mounting posts 1, a first rotating shaft 4 is provided inside the storage tube 3, both ends of the first rotating shaft 4 pass through the storage tube 3 and are rotatably connected to the storage tube 3; an extension mechanism 5 that can adjust the overall length of the guardrail is provided on the outer surface of the first rotating shaft 4; a snap mechanism 6 for quickly assembling the guardrail as a whole is provided inside the mounting posts 1, and the user can control the distance between the two mounting posts 1 according to the required interception range. The two mounting posts 1 cooperate with the extension mechanism 5 to achieve the purpose of adjusting the overall length of the guardrail.

[0028] like Figure 1 and Figure 3As shown, the extension mechanism 5 includes: a non-woven fabric 7 is wrapped around the outer surface of the first rotating shaft 4, one end of the non-woven fabric 7 is fixedly connected to the first rotating shaft 4, and the end of the non-woven fabric 7 away from the first rotating shaft 4 passes through the storage cylinder 3 and extends to the limit bar 8; both ends of the limit bar 8 are provided with metal buckles 9, and the limit bar 8 is fixedly connected to the non-woven fabric 7 through the metal buckles 9; the bottom end of the storage cylinder 3 is provided with a rotating mechanism 10 for automatically storing the non-woven fabric 7, and the user pulls one of the mounting posts 1 according to the required interception range, and the mounting post 1 pulls the limit bar 8, and the limit bar 8 drives one end of the non-woven fabric 7 through the metal buckle 9, so that the other end of the non-woven fabric 7 pulls the first rotating shaft 4 to rotate inside the storage cylinder 3, thereby causing the non-woven fabric 7 to unfold, thereby achieving the purpose of adjusting the overall length of the guardrail.

[0029] like Figure 5 and 6 As shown, the rotary mechanism 10 includes: a spring box 11 is fixedly connected to the bottom end of the storage tube 3, and the spring box 11 is rotatably connected to the bottom end of the first rotating shaft 4. A clockwork spring 12 is provided inside the spring box 11, and both ends of the clockwork spring 12 are fixedly connected to the spring box 11 and the first rotating shaft 4 respectively; the top of the storage tube 3 is fixedly connected to a limit box 13, and the limit box 13 is rotatably connected to the top end of the first rotating shaft 4, and a ratchet 15 is provided inside the limit box 13, and the ratchet 15 is fixed to the outer surface of the first rotating shaft 4, and a ratchet 16 is meshed on one side of the ratchet 15, and the end of the ratchet 16 away from the ratchet 15 passes through the limit box 13 and extends to the outside of the limit box 13, and the inside of the ratchet 16 is fixedly connected to the second rotating shaft 17, and the two ends of the second rotating shaft 17 are rotatably connected to the limit box 13 and the storage tube 3 respectively. A first spring 18 is provided between the ratchet 16 and the limit box 13. The two ends of the first spring 18 are fixedly connected to the limit box 13 and the ratchet 16 respectively. The rotation of the first rotating shaft 4 drives the clockwork spring 12 and the ratchet 15. The ratchet 15 pushes the ratchet 16 while rotating. When the guardrail is pulled to an appropriate length, the first spring 18 pushes the ratchet 16 to engage with the ratchet 15 through the cooperation of the limit box 13, thereby preventing the first rotating shaft 4 from rotating. When the guardrail is stored, the user pushes one end of the ratchet 16, and the ratchet 16 rotates with the second rotating shaft 17 as the center of the circle, so that the ratchet 16 is separated from the ratchet 15. The clockwork spring 12 pulls the first rotating shaft 4 to rotate in the opposite direction through the cooperation of the spring box 11. The first rotating shaft 4 pulls the non-woven fabric 7 to store the non-woven fabric 7, and then stores the guardrail.

[0030] like Figure 4As shown, the snap mechanism 6 includes: a plug-in strip 29 is fixedly connected to one side of the storage tube 3 near the installation column 1, and the outer surface of the installation column 1 is provided with six plug-in slots 28, and the plug-in strip 29 and the limit strip 8 are adapted to the plug-in slot 28; the installation column 1 is provided with two ball grooves 19 near the plug-in slot 28, and the inside of the ball groove 19 is provided with a steel ball 20, and the inside of the installation column 1 is slidably connected to the lifting rod 30, and the outer surface of the lifting rod 30 is provided with two movable grooves 21, and the plug-in strip 29 and the limit strip 8 are provided with a card slot 22 near the steel ball 20. 21 and the card slot 22 are both adapted to the steel ball 20. The user presses the lifting rod 30 to move the movable slot 21 on the lifting rod 30 to the ball groove 19 to increase the range of movement of the steel ball 20, and then inserts the connecting strip 29 and the limiting strip 8 into the interior of the two mounting columns 1 through the connecting slot 28 respectively. Release the lifting rod 30, and the lifting rod 30 resets to drive the movable slot 21 to separate from the ball groove 19 while squeezing the steel ball 20, so that a small part of the steel ball 20 moves to the card slot of the connecting strip 29 and the limiting strip 8, and then fixes the connecting strip 29 and the limiting strip 8 respectively inside the two mounting columns 1.

[0031] like Figure 3 As shown, the bottom of the lifting rod 30 is fixedly connected to the limit plate 23, and the bottom of the limit plate 23 is provided with a limit rod 24. The limit rod 24 is fixedly connected to the counterweight base 2 respectively. The outer surface of the limit rod 24 is sleeved with a second spring 25. The lifting range of the lifting rod 30 can be limited by the limit plate 23 and the limit rod 24. The second spring 25 can push the limit plate 23 when the user releases the lifting rod 30, so that the limit plate 23 drives the lifting rod 30 to move upward.

[0032] like Figure 2 As shown, the limit box 13 is provided with a travel groove 26 near the ratchet 16 , and the travel groove 26 is adapted to the ratchet 16 to limit the rotation range of the ratchet 16 .

[0033] like Figure 1 As shown, mounting holes 27 are provided at the four corners of the counterweight base 2, and damping pads 14 are provided at the bottom of the counterweight base 2. The damping pads 14 are fixedly connected to the counterweight base 2 respectively, thereby improving the stability of the device.

[0034] Working principle: the user pulls one of the installation columns 1 according to the required interception range, and the installation column 1 pulls the limiting strip 8, and the limiting strip 8 drives one end of the non-woven fabric 7 through the metal buckle 9, so that the other end of the non-woven fabric 7 pulls the first rotating shaft 4 to rotate inside the storage cylinder 3, thereby making the non-woven fabric 7 unfold, so as to achieve the purpose of adjusting the overall length of the guardrail, so that the device can adjust the overall length of the device according to the interception range required by the user, thereby improving the work efficiency of the user and solving the problem that the existing temporary closed guardrail can increase the overall length of the guardrail by splicing, but it does not have the function of adjusting the overall length of the guardrail according to the interception range required by the user, resulting in the guardrail being too loose when the user needs to intercept in a large range. The length is limited, and multiple sets of guardrails need to be spliced, which leads to low work efficiency. The rotation of the first rotating shaft 4 drives the clockwork spring 12 and the ratchet 15. The ratchet 15 rotates and pushes the ratchet 16. When the guardrail is pulled to a suitable length, the first spring 18 pushes the ratchet 16 to engage with the ratchet 15 through the cooperation of the limit box 13, thereby preventing the first rotating shaft 4 from rotating. When the guardrail is stored, the user pushes one end of the ratchet 16, and the ratchet 16 rotates with the second rotating shaft 17 as the center of the circle, so that the ratchet 16 is separated from the ratchet 15, and the clockwork spring 12 pulls the first rotating shaft 4 to rotate in the opposite direction through the cooperation of the spring box 11. The first rotating shaft 4 pulls the non-woven fabric 7 to store the non-woven fabric 7, and then the guardrail is stored, which can fix the length of the guardrail after deployment.

[0035] The user presses the lifting rod 30, so that the movable groove 21 on the lifting rod 30 moves to the ball groove 19 to increase the movable range of the steel ball 20, and then inserts the plug-in strip 29 and the limit strip 8 into the inside of the two mounting columns 1 through the plug-in slot 28 respectively, releases the lifting rod 30, and the second spring 25 generates elastic recovery to push the limit plate 23, and the limit plate 23 drives the lifting rod 30. The lifting rod 30 resets and drives the movable groove 21 to separate from the ball groove 19 while squeezing the steel ball 20, so that a small part of the steel ball 20 moves to the inside of the card slot of the plug-in strip 29 and the limit strip 8, and then fixes the plug-in strip 29 and the limit strip 8 respectively inside the two mounting columns 1.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temporary closed guardrail, comprising: Two mounting posts (1); The invention is characterized in that the bottom of each mounting column (1) is fixedly connected to a counterweight base (2), a storage cylinder (3) is provided on one side of one mounting column (1), a first rotating shaft (4) is provided inside the storage cylinder (3), and both ends of the first rotating shaft (4) pass through the storage cylinder (3) and are rotatably connected to the storage cylinder (3); An extension mechanism (5) capable of adjusting the overall length of the guardrail is provided on the outer surface of the first rotating shaft (4); A snap mechanism (6) for quickly assembling the guardrail as a whole is provided inside the installation column (1).

2. A temporary closed guardrail according to claim 1, characterized in that: The extension mechanism (5) comprises: A non-woven fabric (7) is wound around the outer surface of the first rotating shaft (4), one end of the non-woven fabric (7) is fixedly connected to the first rotating shaft (4), and the end of the non-woven fabric (7) away from the first rotating shaft (4) passes through the storage cylinder (3) and extends to the limiting strip (8); Both ends of the limiting strip (8) are provided with metal buckles (9), and the limiting strip (8) is fixedly connected to the non-woven fabric (7) via the metal buckles (9); The bottom end of the storage cylinder (3) is provided with a rotary mechanism (10) for automatically storing the non-woven fabric (7).

3. A temporary closed guardrail according to claim 2, characterized in that: The rotary mechanism (10) comprises: The bottom end of the storage tube (3) is fixedly connected to a spring box (11), the spring box (11) is rotatably connected to the bottom end of the first rotating shaft (4), a spring spring (12) is provided inside the spring box (11), and the two ends of the spring spring (12) are fixedly connected to the spring box (11) and the first rotating shaft (4) respectively; The top of the storage tube (3) is fixedly connected to a limit box (13), the limit box (13) is rotatably connected to the top of the first rotating shaft (4), a ratchet (15) is provided inside the limit box (13), the ratchet (15) is fixed to the outer surface of the first rotating shaft (4), one side of the ratchet (15) is meshed with a ratchet (16), the end of the ratchet (16) away from the ratchet (15) passes through the limit box (13) and extends to the outside of the limit box (13), the inside of the ratchet (16) is fixedly connected to a second rotating shaft (17), the two ends of the second rotating shaft (17) are rotatably connected to the limit box (13) and the storage tube (3), a first spring (18) is provided between the ratchet (16) and the limit box (13), the two ends of the first spring (18) are fixedly connected to the limit box (13) and the ratchet (16), respectively.

4. A temporary closed guardrail according to claim 2, characterized in that: The buckle mechanism (6) comprises: A plug-in strip (29) is fixedly connected to one side of the storage tube (3) close to the installation column (1), and the outer surface of the installation column (1) is provided with six plug-in slots (28), and the plug-in strip (29) and the limit strip (8) are both adapted to the plug-in slots (28); The installation column (1) is provided with two ball grooves (19) near the plug-in slot (28), and the interior of the ball groove (19) is provided with a steel ball (20). The interior of the installation column (1) is slidably connected with a lifting rod (30), and the outer surface of the lifting rod (30) is provided with two movable grooves (21). The plug-in strip (29) and the limit strip (8) are provided with a clamping groove (22) near the steel ball (20), and the movable groove (21) and the clamping groove (22) are adapted to the steel ball (20).

5. A temporary closed guardrail according to claim 4, characterized in that: The bottoms of the lifting rods (30) are fixedly connected to the limiting plates (23), the bottoms of the limiting plates (23) are provided with limiting rods (24), the limiting rods (24) are respectively fixedly connected to the counterweight base (2), and the outer surfaces of the limiting rods (24) are sleeved with second springs (25).

6. A temporary closed guardrail according to claim 3, characterized in that: The limit box (13) is provided with a travel groove (26) near the ratchet (16), and the travel groove (26) is adapted to the ratchet (16).

7. The temporary closed guardrail according to claim 1, characterized in that: The four corners of the counterweight base (2) are all provided with mounting holes (27), and the bottom of the counterweight base (2) is provided with damping pads (14), which are respectively fixedly connected to the counterweight base (2).

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