Opening guardrail for medial strip

Abstract

The utility model relates to the technical field of guardrails, and provides a medial strip opening guardrail which comprises a guardrail bottom frame, a plurality of guardrail middle rods are fixedly installed at the top end of the guardrail bottom frame through open holes, a guardrail top frame is fixedly installed at the top ends of the guardrail middle rods, and one end of the guardrail top frame is connected with a connecting frame in a sliding mode. One end of the guardrail top frame is connected with a lifting frame in a sliding mode, and one end of the guardrail bottom frame is connected with a double-pipe connecting frame in a sliding mode. According to the medial strip opening guardrail, when a lifting frame slides downwards through an arranged driving mechanism, a transverse gear can be driven to rotate on the inner wall of the guardrail top frame through the rotation effect of a longitudinal rack on the lifting frame on a longitudinal gear, and therefore a connecting frame is driven to slide outwards from the inner wall of the guardrail top frame through the effect of the transverse gear on a transverse rack; the double-pipe connecting frame is inserted into the guardrail top frame connected with the double-pipe connecting frame, so that the two open guardrails can be assembled and connected more conveniently, and the double-pipe connecting frame used for assembling and connecting can be prevented from being lost.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, and in particular to a guardrail for a central dividing strip opening. Background Art

[0002] The central median opening guardrail is a common safety facility in road management. It is installed at the opening of the central median to facilitate the passage of special vehicles (such as traffic accident handling vehicles and emergency vehicles) in emergency situations. It can also be temporarily opened and released when one side of the road is closed for construction. It has certain isolation and protection properties.

[0003] A Chinese patent discloses a central dividing strip opening guardrail, with the announcement number CN217758488U, which states that "it includes a guardrail structure, the guardrail structure includes a connecting middle pole, the lower end of the connecting middle pole is provided with a mounting structure, the mounting structure includes a connecting base, and the connecting base is fixedly connected to the lower end of the connecting middle pole"; the guardrail is conveniently installed by connecting the end thereof with the ground, and there are multiple guardrails, and there are corresponding notches and length portions corresponding to the notches at both ends of the guardrails, so that when the notches are installed corresponding to the length portion of another guardrail, a better guardrail connection effect can be achieved, while the traditional opening guardrail requires manual operation to add a connecting piece in the middle during installation, which complicates the operation during installation and reduces the convenience of installation of the overall guardrail. Utility Model Content

[0004] The utility model aims to provide a central dividing zone opening guardrail, which solves the problem in the related art that the traditional opening guardrail needs manual operation to add connecting pieces in the middle during installation, which makes the installation operation complicated.

[0005] The technical solution of the utility model is as follows:

[0006] A central dividing strip opening guardrail comprises a guardrail base frame, a plurality of guardrail middle rods are fixedly installed on the top of the guardrail base frame through openings, a guardrail top frame is fixedly installed on the top of the plurality of guardrail middle rods, one end of the guardrail top frame is slidably connected to a connecting frame, one end of the guardrail top frame is slidably connected to a lifting frame, one end of the guardrail base frame is slidably connected to a double-tube connecting frame, both sides of the double-tube connecting frame are fixedly connected to the bottom end of the lifting frame, longitudinal racks are fixedly installed on the inner walls of both sides of the lifting frame, and a driving mechanism for driving the connecting frame to slide is provided on the inner wall of one end of the guardrail top frame.

[0007] Preferably, the driving mechanism includes two first fixed rods fixedly installed on the top inner wall of the guardrail top frame, and two second fixed rods are also fixedly installed on the top inner wall of the guardrail top frame. The two first fixed rods and the second fixed rods are rotatably connected to a transverse rotating rod through an opening, and a transverse gear is fixedly installed on the outer side of the transverse rotating rod, and transverse racks are fixedly installed on both sides of the top of the connecting frame, and the transverse racks are meshed with the transverse gears.

[0008] Preferably, the driving mechanism also includes two fixed plates fixedly mounted to the inner wall of the top of the guardrail top frame, a longitudinal rotating rod is rotatably connected between the two fixed plates, a longitudinal gear is fixedly mounted on the outer side of the longitudinal rotating rod, and the longitudinal gear is meshed with the longitudinal rack.

[0009] Preferably, one side of one of the second fixed rods is also rotatably connected to a transition rod, and the other ends of the longitudinal rotating rod and the transition rod are both fixedly mounted with bevel gears.

[0010] Preferably, a transition gear is fixedly mounted on the other end of the other lateral rotating rod and the other end of the transition rod.

[0011] Preferably, two limit rods are fixedly mounted on the top and bottom of the connection frame, and the outer sides of the two limit rods are slidably connected to one end of the guardrail top frame.

[0012] Preferably, a first connecting plate and a second connecting plate are respectively fixedly mounted on the outer side of the bottom end of the guardrail middle rod, and both ends of the first connecting plate and the second connecting plate are fixedly connected to the inner side wall of the guardrail base frame.

[0013] Preferably, a plurality of mounting frames are fixedly mounted on the bottom end of the guardrail frame.

[0014] Beneficial effects of the utility model:

[0015] By setting up a driving mechanism, when the lifting frame slides downward, the longitudinal rack on it can drive the transverse gear to rotate on the inner wall of the guardrail top frame through the rotation of the longitudinal gear on the longitudinal rack, so that the connecting frame can be driven to slide outward from the inner wall of the guardrail top frame through the action of the transverse gear on the transverse rack, and inserted into the interior of the guardrail top frame connected to it, thereby facilitating the assembly connection between the two open guardrails and preventing the loss of the double-tube connecting frame used for the assembly connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the guardrail chassis of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the lifting frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection frame structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the driving mechanism of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the limit rod of the utility model;

[0023] In the figure: 1. guardrail base frame; 2. guardrail middle rod; 21. first connecting plate; 22. second connecting plate; 3. guardrail top frame; 4. connecting frame; 5. lifting frame; 6. double-tube connecting frame; 7. longitudinal rack; 8. driving mechanism; 81. first fixed rod; 82. second fixed rod; 83. transverse rotating rod; 84. transverse gear; 85. transverse rack; 86. fixed plate; 87. longitudinal rotating rod; 88. longitudinal gear; 89. transition rod; 810. bevel gear; 811. transition gear; 812. limit rod; 9. installation base frame. DETAILED DESCRIPTION

[0024] The following will be combined with 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 of 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.

[0025] See also Figure 1 and Figure 3The present embodiment proposes a central dividing strip opening guardrail, wherein a single opening guardrail is assembled into a central dividing strip of a desired length by connecting with the opening between another opening guardrail, comprising a guardrail base frame 1, a plurality of guardrail middle poles 2 are fixedly installed on the top of the guardrail base frame 1 through an opening, a guardrail top frame 3 is fixedly installed on the top of the plurality of guardrail middle poles 2, the guardrail base frame 1 and the other end of another guardrail base frame 1 are spliced ​​with each other, the guardrail top frame 3 and the other end of another guardrail top frame 3 are in contact with each other to assemble two opening guardrails, one end of the guardrail top frame 3 is slidably connected to a connecting frame 4, one end of the guardrail top frame 3 is slidably connected to a lifting frame 5, one end of the guardrail base frame 1 is slidably connected to a double-tube connecting frame 6, after the two opening guardrails are spliced ​​with each other, the double-tube connecting frame 6 needs to be inserted into the opening of the other guardrail base frame 1 by sliding it downward. The lifting frame 5 is fixedly connected to the bottom end of the lifting frame 5, and the inner walls of the lifting frame 5 are fixedly installed with longitudinal racks 7. The inner wall of one end of the guardrail top frame 3 is provided with a driving mechanism 8 for driving the connecting frame 4 to slide. The lifting frame 5 slides downward on one end of the guardrail top frame 3, thereby driving the double-tube connecting frame 6 at its bottom to slide downward synchronously and insert into the inside of the other guardrail bottom frame 1. When the lifting frame 5 slides longitudinally downward, the longitudinal rack 7 acts on the driving mechanism 8, so that the connecting frame 4 slides outward from the inside of the guardrail top frame 3 and inserts into the inside of the other guardrail top frame 3, thereby preventing the loss of the parts used for connection and making it easier to connect and assemble the two open guardrails.

[0026] See also Figure 2 , Figure 4 , Figure 5 as well as Figure 6The present embodiment provides a central dividing strip opening guardrail, the driving mechanism 8 includes two first fixing rods 81 fixedly mounted on the top inner wall of the guardrail top frame 3, and two second fixing rods 82 are also fixedly mounted on the top inner wall of the guardrail top frame 3. The two first fixing rods 81 and the second fixing rods 82 are rotatably connected to a transverse rotating rod 83 through an opening, and a transverse gear 84 is fixedly mounted on the outer side of the transverse rotating rod 83. Transverse racks 85 are fixedly mounted on both sides of the top of the connecting frame 4, and the transverse racks 85 are meshed with the transverse gears 84. When the lifting frame 5 slides downward, the two transverse rotating rods 83 are synchronously and unidirectionally mounted on the first fixing rods 81 and the second fixing rods 82. The rod 82 rotates, thereby the horizontal gear 84 on it acts on the horizontal rack 85 on the connecting frame 4, driving the connecting frame 4 to slide outward and insert into the inside of another open guardrail. The driving mechanism 8 also includes two fixed plates 86 fixedly installed on the top inner wall of the guardrail top frame 3, and a longitudinal rotating rod 87 is rotatably connected between the two fixed plates 86. A longitudinal gear 88 is fixedly installed on the outer side of the longitudinal rotating rod 87, and the longitudinal gear 88 is meshed with the longitudinal rack 7. When the lifting frame 5 slides downward, the longitudinal racks 7 on both sides of the lifting frame 5 act on the longitudinal gears 88 on the longitudinal rotating rod 87, driving the two longitudinal rotating rods 87 to move relative to each other on the fixed plate 86. For reverse rotation, one side of one of the second fixed rods 82 is also rotatably connected to a transition rod 89, and the other ends of the longitudinal rotating rod 87 and the transition rod 89 are fixedly installed with a bevel gear 810, and the other ends of the other transverse rotating rod 83 and the transition rod 89 are fixedly installed with a transition gear 811, and one of the transverse rotating rods 83 drives the transition rod 89 and the other transverse rotating rod 83 to rotate in the same direction through the action of the bevel gear 810. At this time, the two transverse rotating rods 83 can rotate in the same direction through the action of the transition rod 89 and the transition gear 811, thereby driving the connecting frame 4 to slide outward, thereby achieving the purpose of closing the two opening guardrails. The function of assembly connection is that two limit rods 812 are fixedly installed on the top and bottom of the connecting frame 4, and the outer sides of the two limit rods 812 are slidably connected to one end of the guardrail top frame 3. The limit rods 812 can prevent the connecting frame 4 from deflecting when sliding. The first connecting plate 21 and the second connecting plate 22 are fixedly installed on the outer side of the bottom end of the guardrail middle rod 2, and the two ends of the first connecting plate 21 and the second connecting plate 22 are fixedly connected to the inner wall of the guardrail bottom frame 1. The guardrail middle rod 2 further improves the connection effect with the guardrail bottom frame 1 through the first connecting plate 21 and the second connecting plate 22, and a plurality of mounting frames 9 are fixedly installed on the bottom end of the guardrail bottom frame 1.

[0027] In the present embodiment, when in use, first align the notches of the two opening guardrails with the extended parts so as to contact with each other, then the lifting frame 5 can be slid downward, and the longitudinal rack 7 on the lifting frame 5 acts on the longitudinal gear 88, so as to drive the two longitudinal rotating rods 87 to rotate in opposite directions relative to each other, and then the two transverse rotating rods 83 are rotated in the same direction through the action of the transition rod 89 and the transition gear 811, and then the transverse gear 84 on the transverse rotating rod acts on the transverse rack 85 to drive the connecting frame 4 to slide outward, so that the connecting frame 4 connects the guardrail top frames 3 on the two opening guardrails, and at the same time, the double-tube connecting frame 6 slides downward to connect the guardrail bottom frames 1 on the two opening guardrails, and then the two opening guardrails are connected and installed, thereby improving the assembly convenience of the opening guardrails.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A central median open guardrail, comprising a guardrail base frame (1), a plurality of guardrail middle poles (2) being fixedly mounted on the top of the guardrail base frame (1) through openings, a guardrail top frame (3) being fixedly mounted on the tops of the plurality of guardrail middle poles (2), characterized in that: One end of the guardrail top frame (3) is slidably connected to a connecting frame (4), one end of the guardrail top frame (3) is slidably connected to a lifting frame (5), one end of the guardrail bottom frame (1) is slidably connected to a double-tube connecting frame (6), both sides of the double-tube connecting frame (6) are fixedly connected to the bottom end of the lifting frame (5), longitudinal racks (7) are fixedly mounted on the inner walls of both sides of the lifting frame (5), and a driving mechanism (8) for driving the connecting frame (4) to slide is provided on the inner wall of one end of the guardrail top frame (3).

2. A central dividing strip opening guardrail according to claim 1, characterized in that: The driving mechanism (8) comprises two first fixing rods (81) fixedly mounted on the top inner wall of the guardrail top frame (3); two second fixing rods (82) are also fixedly mounted on the top inner wall of the guardrail top frame (3); the two first fixing rods (81) and the second fixing rods (82) are rotatably connected to a transverse rotating rod (83) through an opening; a transverse gear (84) is fixedly mounted on the outer side of the transverse rotating rod (83); transverse racks (85) are fixedly mounted on both sides of the top of the connecting frame (4); the transverse racks (85) are meshed with the transverse gears (84).

3. A central dividing strip opening guardrail according to claim 2, characterized in that: The driving mechanism (8) further comprises two fixing plates (86) fixedly mounted on the inner wall of the top of the guardrail top frame (3); a longitudinal rotating rod (87) is rotatably connected between the two fixing plates (86); a longitudinal gear (88) is fixedly mounted on the outer side of the longitudinal rotating rod (87); and the longitudinal gear (88) is meshed with the longitudinal rack (7).

4. A central dividing strip opening guardrail according to claim 3, characterized in that: One side of one of the second fixed rods (82) is also rotatably connected to a transition rod (89), and the other ends of the longitudinal rotating rod (87) and the transition rod (89) are both fixedly mounted with a bevel gear (810).

5. A central dividing strip opening guardrail according to claim 4, characterized in that: A transition gear (811) is fixedly mounted on the other end of the other lateral rotating rod (83) and the transition rod (89).

6. The central dividing strip opening guardrail according to claim 1, characterized in that: Two limit rods (812) are fixedly mounted on the top and bottom of the connection frame (4), and the outer sides of the two limit rods (812) are slidably connected to one end of the guardrail top frame (3).

7. The central dividing strip opening guardrail according to claim 1, characterized in that: A first connecting plate (21) and a second connecting plate (22) are respectively fixedly mounted on the outer side of the bottom end of the guardrail middle rod (2), and both ends of the first connecting plate (21) and the second connecting plate (22) are fixedly connected to the inner side wall of the guardrail bottom frame (1).

8. The central dividing strip opening guardrail according to claim 1, characterized in that: A plurality of mounting base frames (9) are fixedly mounted on the bottom end of the guardrail base frame (1).

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