Construction safety protective fence

Abstract

The utility model relates to the technical field of protective fences, and discloses a construction safety protective fence which comprises a telescopic frame and a sleeve rod fixed on the inner wall of one side of the telescopic frame, and further comprises a sliding rod sliding on the inner wall of the sleeve rod, threaded holes are formed in three positions of the top of the sliding rod, and bolts are in threaded connection with the inner walls of the threaded holes. A transmission mechanism is arranged on the inner wall of the sleeve rod, a sleeve is rotationally connected to one side of the inner wall of the telescopic frame, and a fixing rod is slidably connected to the inner wall of the sleeve. The telescopic frames, the sleeve rods and the sliding rods are used in cooperation, workers can carry the protective fences conveniently, meanwhile, the temporary use area can be effectively reduced through vehicle transportation under the condition that multiple protective fences are used, and under the cooperation of the transmission mechanisms, the sleeves, the fixing rods, the fixing shafts and the auxiliary supporting mechanisms, the working efficiency is improved. According to the protective fence, contact points between the protective fence and the ground are increased, the stability of the protective fence is improved, meanwhile, the auxiliary supporting mechanism also has a storage function, and follow-up transportation is facilitated.

Description

Technical Field

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

[0002] In construction projects, guardrails are a safety facility used to enclose the construction site. The construction site protection fence can isolate the construction site from the surrounding environment, prevent unauthorized personnel from entering the construction site, reduce the intersection of personnel inside and outside the construction site, and reduce the risk of accidents on the construction site. At the same time, the fence can also prevent the materials, equipment and other items on the construction site from being stolen or damaged, protect the property on the construction site, and the construction site protection fence can play a guiding role, indicating the passage for personnel to enter and leave the construction site, avoiding personnel from entering and leaving the construction site at will, and reducing the possibility of chaos and traffic jams.

[0003] At present, some guardrails are too wide and do not have the retracting function, which makes it inconvenient for workers to carry them. The transportation is inconvenient, which reduces the transportation efficiency of the guardrails. When using vehicles for transportation, the area occupied by the guardrails cannot be reduced, which will reduce the carrying capacity of the vehicle.

[0004] In addition, some of the guardrail bases used cannot effectively support the guardrail. Under the influence of strong natural winds and wind pressure generated by passing large trucks, the base will change its original placement state without auxiliary support, and there is a higher probability of it tipping over during subsequent use, thus creating a safety hazard. Utility Model Content

[0005] The purpose of the utility model is to provide a construction safety guardrail to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a construction safety guardrail, comprising a telescopic frame and a sleeve rod fixed to the inner wall of one side of the telescopic frame, and also comprising:

[0007] A sliding rod slides on the inner wall of the sleeve rod, threaded holes are opened at three locations on the top of the sliding rod, bolts are threadedly connected to the inner walls of the threaded holes, a transmission mechanism is arranged on the inner wall of the sleeve rod, a sleeve is rotatably connected to one side of the inner wall of the telescopic frame, and a fixing rod is slidably connected to the inner wall of the sleeve;

[0008] There are sliding grooves on both sides of the inner wall of the sleeve, and the inner wall of the sliding groove is slidably connected with a slider. Installation grooves are provided on both sides of the telescopic frame, and an auxiliary supporting mechanism is arranged inside the installation groove. One end of the sleeve is fixedly connected to a fixed shaft, and one side of the sleeve surface is rotatably connected to a protective shell.

[0009] Preferably, the transmission mechanism includes a rack plate bolted to one side of the inner wall of the telescopic frame and a timing gear meshed with one side of the surface of the rack plate. The transmission mechanism also includes a rotating rod bolted to the bottom of the timing gear and a bevel gear fixed to the other end of the rotating rod, and one side of the surface of the bevel gear is meshed with a bevel gear.

[0010] Preferably, the auxiliary support mechanism includes a follower wheel bolted to the other end of the fixed shaft and a driven wheel meshed with one side of the follower wheel surface, the auxiliary support mechanism also includes a rotating shaft rotated on the inner wall of the mounting groove and an auxiliary plate fixed to the surface of the rotating shaft, a pad is provided on one side of the surface of the auxiliary plate, a support rod is fixedly connected to one side of the inner wall of the mounting groove, and the surface of the support rod is rotatably connected to the inner wall of another follower wheel.

[0011] Preferably, the size of the bevel gear is larger than that of the conical gear, and the length of the rack plate is smaller than the length of the sleeve.

[0012] Preferably, the size of the driving wheel is larger than that of the driven wheel.

[0013] Preferably, fixing plates are bolted to both sides of the bottom of the sleeve rod, and the bottom of the fixing plates and the top of the protective shell are bolted to each other.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can retract the guardrail through the coordinated use of the telescopic frame, the sleeve rod and the sliding rod, so that the staff can carry the guardrail conveniently. At the same time, when multiple guardrails are used, the temporary area can be effectively reduced by transporting them by vehicle. With the coordinated use of the transmission mechanism, the sleeve, the fixed rod, the fixed shaft and the auxiliary support mechanism, the contact points between the guardrail and the ground are increased, the stability of the guardrail is improved, and the guardrail itself is not easy to topple over under the influence of external factors. At the same time, the auxiliary support mechanism also has a storage function, which is convenient for subsequent transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-section structure of the sleeve rod in the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing rod and the protective shell in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the bottom of the telescopic frame in the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the installation slot in the utility model.

[0021] In the figure: 1. telescopic frame; 2. threaded hole; 3. bolt; 4. sleeve rod; 5. sliding rod; 6. transmission mechanism; 61. rack plate; 62. timing gear; 63. rotating rod; 64. bevel gear; 65. bevel gear; 7. sleeve; 8. fixing rod; 9. slide groove; 10. slider; 11. fixed shaft; 12. mounting groove; 13. auxiliary support mechanism; 131. driven wheel; 132. driving wheel; 133. rotating shaft; 134. auxiliary plate; 135. pad; 14. support rod; 15. fixing plate; 16. protective shell. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5As shown, a construction safety guardrail comprises a telescopic frame 1, an inner wall of one side of the telescopic frame 1 is fixedly connected with a sleeve rod 4, the number of the sleeve rods 4 is several, the inner wall of the sleeve rod 4 is slidably connected with a sliding rod 5, the other end of the sliding rod 5 is fixedly connected to one side of the inner wall of the telescopic frame 1, three places on the top of the upper sliding rod 5 are provided with threaded holes 2, the threaded holes 2 and the holes of the upper sleeve rod 4 correspond to each other, the inner wall of the threaded hole 2 is threadedly connected with a bolt 3, the bolt 3 is threadedly connected with the hole of the upper sleeve rod 4, under the action of the bolt 3, the telescopic frame 1 can be prevented from moving easily, when the guardrail needs to be unfolded and used, the bolt 3 can be twisted to disengage the bolt 3 from the threaded hole 2 and the inside of the telescopic frame 1 hole, and the bolt 3 can be pulled The telescopic frame 1 is fully unfolded, and the bolt 3 is used again to limit the telescopic frame 1. When the telescopic frame 1 is unfolded, the sliding rod 5 can extend outward from the inside of the sleeve rod 4 without hindering the unfolding and use of the telescopic frame 1. A transmission mechanism 6 is provided on the inner wall of the lower sleeve rod 4. A sleeve 7 is rotatably connected to one side of the inner wall of the telescopic frame 1. The sleeve 7 is used in conjunction with the transmission mechanism 6. The sleeve 7 can rotate under the action of the transmission mechanism 6. The inner wall of the sleeve 7 is slidably connected with a fixing rod 8. When the telescopic frame 1 is unfolded, the fixing rod 8 can extend outward from the inside of the sleeve 7, so that the telescopic frame 1 can be normally unfolded. Slide grooves 9 are provided on both sides of the inner wall of the sleeve 7. The inner wall of the slide groove 9 is slidably connected with a slider 10. The slider One side of the surface of 10 is fixedly connected to one side of the surface of the fixed rod 8. Under the action of the slider 10, the slider 10 can be limited so that the sleeve 7 can drive the fixed rod 8 to rotate when it rotates. Both sides of the telescopic frame 1 are provided with mounting grooves 12, and an auxiliary support mechanism 13 is arranged inside the mounting groove 12. One end of the sleeve 7 is fixedly connected to a fixed shaft 11, and when the sleeve 7 rotates, the fixed shaft 11 can be driven to rotate. The fixed shaft 11 penetrates the surface of the telescopic frame 1 and extends to the inside of the mounting groove 12 and is rotatably connected to the penetration of the telescopic frame 1. The fixed shaft 11 is used in conjunction with the auxiliary support mechanism 13. When the fixed shaft 11 rotates, the auxiliary support mechanism 13 can be driven to operate. The fixed rod 8 penetrates The other side of the inner wall of the telescopic frame 1 is rotatably connected to the penetration point, and the fixing rod 8 is used in conjunction with the auxiliary support mechanism 13 on the other side. When the fixing rod 8 rotates, the auxiliary support mechanism 13 on the other side can be operated. One side of the surface of the sleeve 7 is rotatably connected with a protective shell 16, and the protective shell 16 is used in conjunction with the transmission mechanism 6. Under the action of the protective shell 16, the parts inside the transmission mechanism 6 can be protected, so that the transmission mechanism 6 can run more stably. Fixed plates 15 are bolted to both sides of the bottom of the lower sleeve rod 4, and the bottom of the fixing plate 15 and the top of the protective shell 16 are bolted to each other. Under the action of the fixing plate 15, the protective shell 16 can be fixed to prevent the protective shell 16 from rotating with the sleeve 7.

[0024] The transmission mechanism 6 includes a rack plate 61, one side of the surface of the rack plate 61 is bolted to one side of the inner wall of the telescopic frame 1. When the telescopic frame 1 is unfolded, the rack plate 61 can extend outward from the inside of the fixed rod 8. One side of the surface of the rack plate 61 is meshedly connected with a timing gear 62. When the rack plate 61 moves, the timing gear 62 can be driven to rotate. A rotating rod 63 is bolted to the bottom of the timing gear 62. When the timing gear 62 rotates, the rotating rod 63 can be driven to rotate. The rotating rod 63 passes through the surface of the lower sleeve rod 4 and is connected to the penetration rod 8. The rotating rod 63 is rotatably connected, and the other end of the rotating rod 63 is fixedly connected with a bevel gear 64. When the rotating rod 63 rotates, the bevel gear 64 can rotate. One side of the surface of the bevel gear 64 is meshed with a bevel gear 65. When the bevel gear 64 rotates, the bevel gear 65 can be driven to rotate. The inner wall of the bevel gear 65 is fixedly connected to the surface of the sleeve 7. When the bevel gear 65 rotates, the sleeve 7 can be driven to rotate. The size of the bevel gear 65 is larger than the size of the bevel gear 64, and the length of the rack plate 61 is smaller than the length of the sleeve 7.

[0025] The auxiliary support mechanism 13 includes two driven wheels 131, and the driven wheels 131 are meshed with each other. One side of the surface of one driven wheel 131 is bolted to the other end of the fixed shaft 11. When the fixed shaft 11 rotates, one driven wheel 131 can be driven to rotate. When one driven wheel 131 rotates, the other driven wheel 131 can be rotated in the opposite direction. A support rod 14 is fixedly connected to one side of the inner wall of the mounting groove 12. The surface of the support rod 14 is rotatably connected to the inner wall of the other driven wheel 131. Under the action of the support rod 14, the other driven wheel 131 can be prevented from falling. One side of the surface of the wheel 131 is meshed with a driving wheel 132. When the two driven wheels 131 rotate, the driving wheels 132 on both sides can rotate. The two driven wheels 131 rotate in opposite directions. The driving wheels 132 respectively meshed with the two driven wheels 131 rotate in opposite directions with the driven wheels 131. The inner walls of the two locations of the installation groove 12 are rotatably connected with a rotating shaft 133. One side of the surface of the rotating shaft 133 is fixedly connected to the inner wall of the driving wheel 132. When the driving wheel 132 rotates, the rotating shaft 133 can rotate. The two ends of the rotating shaft 133 pass through the two sides of the inner wall of the installation groove 12. The rotating shaft 133 The surface of the auxiliary plate 133 is fixedly connected to the auxiliary plate 134. When the rotating shaft 133 rotates, the auxiliary plate 134 can rotate. A pad 135 is arranged on one side of the surface of the auxiliary plate 134. When the auxiliary plate 134 rotates, the pad 135 can rotate. When the auxiliary plate 134 is fully unfolded, one side of the surface of the pad 135 can contact the ground, which adds a new support point to the guardrail and improves the stability of the guardrail when in use. The pad 135 is made of rubber. When the pad 135 contacts the ground, the rubber material can prevent the ground surface from being raised, which makes the auxiliary plate 134 4 cannot be fully unfolded, the other end of the fixing rod 8 is fixedly connected to one side of the surface of a follower wheel 131 at the other end, and when the fixing rod 8 rotates, the follower wheel 131 at the other end can be driven to rotate. Similarly, under the action of the rotation of the two follower wheels 131 on the other side, the two pads 135 on the same side can be rotated to contact the ground to achieve support. At the same time, the leftmost hole of the upper sleeve rod 4 is aligned with the rightmost threaded hole 2 of the upper sliding rod 5. The staff uses the bolt 3 to limit it to prevent the telescopic frame 1 from easily moving to change the use distance. The size of the driving wheel 132 is larger than that of the follower wheel 131.

[0026] Working principle: When the guardrail needs to be changed to a new place, the staff releases the limit of the bolt 3 on the upper sleeve rod 4 and the sliding rod 5, closes the two sides of the telescopic frame 1 to shrink the telescopic frame 1, and when the telescopic frame 1 shrinks, the sliding rod 5 moves inside the sleeve rod 4, so that the sleeve rod 4 stores the sliding rod 5 until the sliding rod 5 completely enters the sleeve rod 4. At the same time, when the telescopic frame 1 shrinks, the rack plate 61 moves toward the inside of the sleeve rod 4. When the rack plate 61 moves, the timing gear 62 can be driven to rotate. When the timing gear 62 rotates, the rotating rod 63 can be driven to rotate. When the rotating rod 63 rotates, the bevel gear 64 can be rotated. When the bevel gear 64 rotates, the bevel gear 65 can be driven to rotate. When the bevel gear 65 rotates, the sleeve The cylinder 7 rotates, and when the sleeve 7 rotates, the fixed rod 8 and the fixed shaft 11 can be driven to rotate at the same time. When the fixed rod 8 and the fixed shaft 11 rotate, the driven wheels 131 at both sides can be rotated at the same time. When one driven wheel 131 rotates, the other driven wheel 131 can be rotated in the opposite direction. When the two driven wheels 131 rotate, the moving wheels 132 on both sides can be rotated in opposite directions. When the moving wheels 132 rotate, the rotating shaft 133 can be rotated. When the rotating shaft 133 rotates, the auxiliary plate 134 can be rotated. When the auxiliary plate 134 rotates, the cushion block 135 can be rotated to release the contact between the cushion block 135 and the ground. When the telescopic frame 1 is completely closed, the cushion block 135 can be returned to its original position, reducing the floor space of the entire guardrail and facilitating subsequent transportation.

[0027] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction safety guardrail, comprising a telescopic frame (1) and a sleeve rod (4) fixed to an inner wall of one side of the telescopic frame (1), characterized in that: Also includes: A sliding rod (5) slides on the inner wall of the sleeve rod (4), threaded holes (2) are provided at three locations on the top of the sliding rod (5), bolts (3) are threadedly connected to the inner walls of the threaded holes (2), a transmission mechanism (6) is provided on the inner wall of the sleeve rod (4), a sleeve (7) is rotatably connected to one side of the inner wall of the telescopic frame (1), and a fixing rod (8) is slidably connected to the inner wall of the sleeve (7); Slide grooves (9) are provided on both sides of the inner wall of the sleeve (7), and the inner wall of the slide groove (9) is slidably connected to a slider (10). Both sides of the telescopic frame (1) are provided with mounting grooves (12), and an auxiliary support mechanism (13) is arranged inside the mounting groove (12). One end of the sleeve (7) is fixedly connected to a fixed shaft (11), and one side of the surface of the sleeve (7) is rotatably connected to a protective shell (16).

2. A construction safety guardrail according to claim 1, characterized in that: The transmission mechanism (6) comprises a rack plate (61) bolted to one side of the inner wall of the telescopic frame (1) and a timing gear (62) meshed with one side of the surface of the rack plate (61). The transmission mechanism (6) also comprises a rotating rod (63) bolted to the bottom of the timing gear (62) and a bevel gear (64) fixed to the other end of the rotating rod (63). One side of the surface of the bevel gear (64) is meshed with a bevel gear (65).

3. A construction safety guardrail according to claim 1, characterized in that: The auxiliary support mechanism (13) comprises a follower wheel (131) bolted to the other end of the fixed shaft (11) and a driven wheel (132) meshed with one side of the surface of the follower wheel (131). The auxiliary support mechanism (13) also comprises a rotating shaft (133) rotating on the inner wall of the mounting groove (12) and an auxiliary plate (134) fixed to the surface of the rotating shaft (133). A cushion block (135) is provided on one side of the surface of the auxiliary plate (134). A support rod (14) is fixedly connected to one side of the inner wall of the mounting groove (12). The surface of the support rod (14) is rotatably connected to the inner wall of another follower wheel (131).

4. A construction safety guardrail according to claim 2, characterized in that: The size of the bevel gear (65) is larger than the size of the cone gear (64), and the length of the rack plate (61) is smaller than the length of the sleeve (7).

5. A construction safety guardrail according to claim 3, characterized in that: The size of the driving wheel (132) is larger than the size of the driven wheel (131).

6. A construction safety guardrail according to claim 1, characterized in that: Both sides of the bottom of the sleeve rod (4) are bolted with fixing plates (15), and the bottom of the fixing plate (15) and the top of the protective shell (16) are bolted to each other.

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