Guardrail convenient to splice

Abstract

The invention provides a guardrail convenient to splice, which is characterized in that a first connecting groove is formed in one side of the guardrail, and a second connecting groove is formed in the first connecting groove; and the other side is fixedly connected with the plug-in assembly. The plugging assembly comprises a plurality of clamping mechanisms and a triggering mechanism. And the triggering mechanism is used for limiting the clamping mechanism, so that the clamping mechanism is kept in a first state of contraction. When splicing is carried out, the inserting-connecting assembly is inserted into the first connecting groove in the other guardrail, the triggering mechanism slightly collides with the inner side wall of the first connecting groove in the other guardrail, and then the clamping-connecting mechanism is switched to be in the second state that the clamping-connecting mechanism can stretch out. At the moment, the clamping mechanism extends into the second connecting groove of the other guardrail, and the splicing process is completed. Based on the structural design, in the splicing process, inserting connection can be completed only through slight collision, and the splicing difficulty of the guardrail is obviously reduced.

Description

Technical Field

[0001] This invention generally relates to the field of guardrail technology, and specifically to a guardrail that is easy to assemble. Background Technology

[0002] Highway crash barriers are crucial for ensuring driving safety. Traditional highway crash barriers have some shortcomings in terms of connection methods. For example, the connection between guardrails is only made by two bolts, which can easily lead to loosening and separation when subjected to a vehicle impact; moreover, when connecting sheet guardrails with bolts, it is easy to align the bolt holes, making splicing inconvenient. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a guardrail that is easy to assemble.

[0004] This invention provides a fence that is easy to assemble, comprising: The guardrail has a first connecting groove on one side edge; a second connecting groove is also provided on the inner side wall of the first connecting groove. A plug-in assembly is fixedly installed on the edge of the guardrail away from the first connecting slot; the plug-in assembly is used to insert into the first connecting slot and the second connecting slot of adjacent guardrails to fixally connect the two adjacent guardrails. The plug-in assembly includes: A connector is fixedly installed on the edge of the guardrail away from the first connecting groove; the connector has multiple third connecting grooves. Multiple snap-fit ​​mechanisms are respectively installed in multiple third connecting slots; each snap-fit ​​mechanism has a first state and a second state. In the first state, the snap-fit ​​mechanism is located within the third connecting groove; In the second state, the snap-fit ​​mechanism protrudes from the third connecting groove and extends into the second connecting groove; A triggering mechanism is installed on the connecting body and inserted into the locking mechanism. It is used to limit the locking mechanism and keep it in the first state. It is also used to separate from the locking mechanism when subjected to external force, so that the locking mechanism can switch from the first state to the second state.

[0005] According to the technical solution provided by the present invention, the third connecting groove has a connecting post; The latching mechanism includes: The snap-fit ​​flap is provided with an elongated hole and a limiting hole; The limiting hole is used to connect with the triggering mechanism to limit the locking flap; The connecting post passes through the elongated hole; the snap-fit ​​flap can slide relative to the connecting post in a direction perpendicular to the connecting post; A first elastic element is disposed inside the elongated hole, with one end connected to the connecting post and the other end connected to the inner wall of the elongated hole, for driving the snap-fit ​​flap to protrude from the third connecting groove.

[0006] According to the technical solution provided by the present invention, a fourth connecting groove is further provided on the connecting body; the fourth connecting groove communicates with the limiting hole; The triggering mechanism includes: A locking claw is slidably mounted in the fourth connecting groove; the locking claw has multiple locking ends. The second elastic element has one end fixedly connected to the claw and the other end fixedly connected to the inner wall of the fourth connecting groove. The gripper has a third state and a fourth state; In the third state, the snap-fit ​​end is inserted into the limiting hole to limit the snap-fit ​​flap; In the fourth state, the snap-fit ​​end is separated from the limiting hole.

[0007] According to the technical solution provided by the present invention, the triggering mechanism further includes: A trigger rod, one end of which is fixedly connected to the claw, and the other end of which extends out of the fourth connecting groove, is used to contact the inner wall of the first connecting groove when the plug-in assembly is inserted into the first connecting groove, and to drive the claw to switch to the fourth state.

[0008] According to the technical solution provided by the present invention, it also includes: A guardrail connector is used to fix two adjacent guardrails at the same time, thereby fixing the relative positions of the two adjacent guardrails.

[0009] According to the technical solution provided by the present invention, the guardrail is installed on a base; the base has a protrusion. The guardrail has a fifth connecting groove on the edge near the base; the fifth connecting groove matches the shape of the protrusion and is used to engage with each other to fix the relative position of the guardrail and the base.

[0010] According to the technical solution provided by the present invention, the guardrail is fixedly connected to the base by connecting bolts; one end of the connecting bolt connected to the base is coated with adhesive to bond the connecting bolt to the base.

[0011] The beneficial effects of this invention are as follows: A first connecting slot is formed on one side of the guardrail, and a second connecting slot is formed within the first connecting slot; a connecting plug-in assembly is fixedly installed on the other side. The plug-in assembly includes multiple snap-fit ​​mechanisms and a triggering mechanism. The triggering mechanism is used to limit the snap-fit ​​mechanism, keeping it in a retracted first state. When splicing, the plug-in assembly is inserted into the first connecting slot on another guardrail. The triggering mechanism slightly collides with the inner wall of the first connecting slot on the other guardrail, causing the snap-fit ​​mechanism to switch to an extended second state. At this time, the snap-fit ​​mechanism extends into the second connecting slot of the other guardrail, completing the splicing process. Based on the above structural design, during the splicing process, the plug-in can be completed through only a slight collision, significantly reducing the difficulty of splicing the guardrail. Attached Figure Description

[0012] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a front view of a type of guardrail that is easy to assemble. Figure 2 A side view of a type of guardrail that is easy to assemble; Figure 3 This is a schematic diagram of the guardrail connectors; Figure 4 A schematic diagram of the snap-fit ​​mechanism for installing the connector; Figure 5 This is a schematic diagram showing the connector without the locking mechanism and triggering mechanism installed. Figure 6 This is an exploded view of the plug-in assembly; Figure 7 This is a schematic diagram of the chuck's structure; Figure 8 This is a schematic diagram of the latching mechanism in its second state. Figure 9 This is a schematic diagram of the card-connector structure; Figure 10 This is a cross-sectional view of the plug-in assembly; Figure 11 This is a cross-sectional view of the snap-fit ​​end when it separates from the limiting hole; Figure 12 This is a cross-sectional view of the insertion assembly when the snap-fit ​​mechanism is in the second state; Figure 13 This is a cross-sectional view of the chuck when it is resetting; The components are: 1. Guardrail; 2. First connecting groove; 3. Second connecting groove; 4. Connector; 5. Third connecting groove; 6. Connecting post; 7. Snap-fit ​​flap; 8. Long strip hole; 9. Limiting hole; 10. First elastic element; 11. Fourth connecting groove; 12. Claw; 13. Snap-fit ​​end; 14. Second elastic element; 15. Trigger rod; 16. Guardrail connector; 17. Base; 18. Protrusion; 19. Fifth connecting groove; 20. Connecting bolt; 21. First threaded hole; 22. Second threaded hole; 41. First connector; 42. Second connector; 43. Trigger through hole. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] refer to Figure 1 This invention provides a fence that is easy to assemble, comprising: Guardrail 1, with a first connecting groove 2 provided on one side edge; a second connecting groove 3 is also provided on the inner side wall of the first connecting groove 2; A plug-in assembly is fixedly installed on the edge of the guardrail 1 away from the first connecting slot 2; the plug-in assembly is used to insert into the first connecting slot 2 and the second connecting slot 3 of adjacent guardrail 1 to fixally connect the two adjacent guardrail 1. refer to Figure 4-5 The plug-in assembly includes: Connector 4 is fixedly installed on the edge of the guardrail 1 away from the first connecting groove 2; the connector 4 has a plurality of third connecting grooves 5. Multiple snap-fit ​​mechanisms are respectively installed in multiple third connecting slots 5; each snap-fit ​​mechanism has a first state and a second state. In the first state, the snap-fit ​​mechanism is located within the third connecting groove 5; refer to Figure 8 When in the second state, the snap-fit ​​mechanism protrudes from the third connecting groove 5 and extends into the second connecting groove 3; A triggering mechanism is installed on the connecting body 4 and inserted into the locking mechanism. The triggering mechanism is used to limit the locking mechanism and keep it in the first state. It is also used to separate from the locking mechanism when subjected to external force, so that the locking mechanism can switch from the first state to the second state.

[0016] Specifically, refer to Figure 1 The first connecting groove 2 and the second connecting groove 3 together form a connected space; the cross-section of the connected space along the plane where the guardrail 1 is located is T-shaped.

[0017] When the plug-in assembly is inserted into the first connecting slot 2 and the second connecting slot 3 on another guardrail, the connector 4, multiple snap-fit ​​mechanisms, and the trigger mechanism all first extend into the first connecting slot 2. When the trigger mechanism slightly collides with the inner wall of the first connecting slot 2, the trigger mechanism and the snap-fit ​​mechanism separate, allowing the snap-fit ​​mechanism to switch from the first state to the second state. At this time, the snap-fit ​​mechanism extends into the second connecting slot, completing the splicing function and fixing the two adjacent guardrails 1 relative to each other.

[0018] In this process, the connection can be completed with only a slight collision, which significantly reduces the difficulty of splicing the guardrail.

[0019] Furthermore, the third connecting groove 5 has a connecting post 6; In this embodiment, the connecting post 6 is a bolt. The connecting body 4 consists of two parts: a first connecting body 41 and a second connecting body 42. The first connecting body 41 has multiple protrusions, and when it is fixedly connected to the second connecting body 42, the protrusions form the third connecting groove 5.

[0020] The two are connected together by the connecting post 6, forming a third connecting groove 5 between them.

[0021] The latching mechanism includes: refer to Figure 9 The snap-fit ​​flap 7 is provided with an elongated hole 8 and a limiting hole 9. The limiting hole 9 is used to connect with the triggering mechanism to limit the locking flap 7; The connecting post 6 passes through the elongated hole 8; the snap-fit ​​flap 7 can slide relative to the connecting post 6 in a direction perpendicular to the connecting post 6; The first elastic element 10 is disposed in the elongated hole 8, with one end connected to the connecting post 6 and the other end connected to the inner sidewall of the elongated hole 8. It is used to drive the snap-fit ​​flap 7 to protrude out of the third connecting groove 5 when the triggering mechanism is separated from the limiting hole 9.

[0022] Preferably, the third connecting groove 5 has two connecting posts 6, and the snap-fit ​​flap 7 has two parallel elongated holes 8. The two connecting posts 6 pass through the two elongated holes 8 respectively, so that when the snap-fit ​​flap 7 slides relative to the connecting posts 6, it can only translate and will not rotate.

[0023] Preferably, the first elastic element 10 is a compression spring. Since the connecting post 6 divides the elongated hole 8 into two parts, the first elastic element 10 needs to be positioned on the outer side of the elongated hole 8.

[0024] When the snap-fit ​​mechanism is in the first state, the first elastic element 10 is in a compressed state; when the trigger mechanism and the limiting hole 9 are separated, the first elastic element 10 drives the snap-fit ​​flap 7 to translate relative to the connecting post 6, so that the snap-fit ​​flap 7 can protrude out of the third connecting groove 5, that is, switch to the second state.

[0025] Furthermore, a fourth connecting groove 11 is also provided on the connecting body 4; the fourth connecting groove 11 communicates with the limiting hole 9; Specifically, the fourth connecting groove 11 is formed on the side wall of the second connector 42 near the first connector 41. (See reference) Figure 7 The triggering mechanism includes: The claw 12 is slidably mounted in the fourth connecting groove 11; the claw 12 has multiple engaging ends 13; The second elastic element 14 has one end fixedly connected to the claw 12 and the other end fixedly connected to the inner sidewall of the fourth connecting groove 11. The claw 12 has a third state and a fourth state; In the third state, the snap-fit ​​end 13 is inserted into the limiting hole 9 to limit the snap-fit ​​flap 7; In the fourth state, the snap-fit ​​end 13 is separated from the limiting hole 9 so that the snap-fit ​​flap 7 can be translated relative to the third connecting groove 5 so that the snap-fit ​​mechanism can switch from the first state to the second state.

[0026] Specifically, the snap-fit ​​end 13 is inserted into the limiting hole 9, thereby limiting the snap-fit ​​segment 7 by preventing relative sliding between the snap-fit ​​segment 7 and the third connecting groove 5.

[0027] The second elastic element 14 is a compression spring. When the claw 12 is in the third state, the second elastic element 14 is in the natural state, and the locking end 13 is inserted into the limiting hole 9.

[0028] When the claw 12 is subjected to external force and compresses the second elastic element 14, the claw 12 will slide in the fourth connecting groove 11 and switch to the fourth state; at this time, the locking end 13 separates from the limiting hole 9, the locking mechanism can switch from the first state to the second state, and the locking petal 7 can extend into the second connecting groove 3 to achieve the purpose of insertion.

[0029] Furthermore, the triggering mechanism also includes: The trigger rod 15 has one end fixedly connected to the claw 12 and the other end extending out of the fourth connecting groove 11. It is used to contact the inner wall of the first connecting groove 2 when the plug-in assembly is inserted into the first connecting groove 2, and drive the claw 12 to switch to the fourth state.

[0030] Specifically, the trigger rod 15 extends out of one end of the connector 4 and is used to make a slight collision with the inner wall of the first connector 2 when the plug-in component is inserted into the first connector 2, thereby pushing the claw to switch from the third state to the fourth state.

[0031] A trigger through hole 43 is provided on the first connector 41, which is located opposite the fourth connecting groove 11. The trigger rod 15 extends through the trigger through hole 43 to the outside of the connector 4.

[0032] Preferably, the trigger rod 15 has an inclined guide surface on the side near the connector 4. When the trigger rod 15 collides with the inner wall of the first connecting groove 2, the guide surface can prevent the trigger rod from getting stuck with the end face of the connector 4.

[0033] Further, refer to Figure 3 It also includes: The guardrail connector 16 is used to fix two adjacent guardrails 1 at the same time, and to fix the relative position of the two adjacent guardrails 1.

[0034] Specifically, the guardrail connector 16 has two through holes, and the guardrail 1 has a first threaded hole 21 at its apex. Two bolts can be passed through the two through holes and connected to the first threaded holes 21 on both sides of the guardrail 1 to complete the fixed connection.

[0035] Preferably, the opening directions of the first threaded holes 21 are at right angles or obtuse angles, and the bolts are obliquely connected to the first threaded holes 21; thus, the guardrail 1 can withstand more oblique forces when it collides with an out-of-control vehicle.

[0036] Further, refer to Figure 2 The guardrail 1 is mounted on the base 17; the base 17 has a protrusion 18. The guardrail 1 has a fifth connecting groove 19 on the edge near the base 17; the fifth connecting groove 19 matches the shape of the protrusion 18 and is used to engage with each other to fix the relative position of the guardrail 1 and the base 17.

[0037] During installation, guardrail 1 can be placed on base 17, with protrusion 18 positioned within the fifth connecting groove 19; then, guardrail 1 can be pushed along the extending direction of base 17 to complete the splicing with another guardrail 1. This splicing method is simple, requires no alignment, and is easy to operate.

[0038] Preferably, a soft pad is provided between the base and the protrusion 18 to absorb energy during a collision, thereby reducing the loss caused by the collision.

[0039] Furthermore, the base 17 has a second threaded hole 22; The guardrail 1 is fixedly connected to the base 17 by connecting bolts 20; one end of the connecting bolt 20 connected to the base 17 is coated with adhesive to bond the connecting bolt 20 to the base 17.

[0040] In this embodiment, the method of using adhesive to bond the connecting bolt 20 and the base can prevent the connecting bolt 20 from loosening and increase the structural strength.

[0041] Preferably, the adhesive is made of epoxy resin.

[0042] In summary, the process of inserting the plug-in assembly installed on one guardrail 1 into the first connecting slot 2 and the second connecting slot 3 on another guardrail 1 includes: Initially, reference Figure 10 The trigger rod 15 protrudes from the connecting body 4, the claw 12 of the trigger mechanism is in the third state, and the locking end 13 extends into the limiting hole 9, so that the locking mechanism is kept in the first state. Place the guardrail on the base, and insert the protrusion 18 into the fifth connecting groove 19; make the plug-in assembly face the first connecting groove 2 on the other guardrail 1; Push the guardrail 1 to bring the plug-in component close and insert it into the first connecting slot 2; refer to Figure 11 When the plug-in component is inserted into the first connecting slot 2 on another guardrail 1, the trigger rod 15 abuts against the inner wall of the first connecting slot 2 and produces a slight collision, pushing the claw 12 to switch from the third state to the fourth state.

[0043] refer to Figure 12 When the snap-fit ​​end 13 separates from the limiting hole 9, the snap-fit ​​mechanism can automatically switch from the first state to the second state. The snap-fit ​​petal 7 protrudes from the third connecting groove 5 and extends into the second connecting groove 3 to complete the splicing.

[0044] During this process, no alignment is required. Simply place the guardrail 1 on the base 17 and push the guardrail 1 to slide along the base 17 to complete the splicing. The operation is simple and the overall strength of the structure is higher after connection.

[0045] Additionally, if no collision occurs, the connector remains in place. Figure 12 The current state. (See reference) Figure 13 When guardrail 1 is hit by an out-of-control vehicle, the distance between two adjacent guardrails 1 increases, the trigger rod 15 is no longer abutted by the inner wall of the first connecting groove 2, and the second elastic element 14 can drive the claw 12 to reset.

[0046] Since the limiting hole 9 is no longer directly opposite the locking end 13, the locking end 13 enters the space between the multiple locking segments 7 and abuts against the surfaces of the locking segments 7 that are close to each other. In this state, the locking end 13 can still achieve the limiting effect on the locking segments 7.

[0047] Unlike before, the purpose of the limiting action here is to prevent the locking flap 7 from retracting into the third connecting groove 5 under external force, that is, to prevent the locking mechanism from switching from the second state back to the first state under external force. Therefore, based on the above design of the guardrail, it can also achieve higher connection stability after connection, prevent separation between them, and thus have sufficient structural strength to resist collisions with out-of-control vehicles.

[0048] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this invention.

Claims

1. A type of easy-to-assemble guardrail, characterized in that, include: The guardrail (1) has a first connecting groove (2) on one side edge; a second connecting groove (3) is also provided on the inner side wall of the first connecting groove (2). A plug-in assembly is fixedly installed on the edge of the guardrail (1) away from the first connecting groove (2); the plug-in assembly is used to insert into the first connecting groove (2) and the second connecting groove (3) of the adjacent guardrail (1) to fix the two adjacent guardrails (1). The plug-in assembly includes: A connector (4) is fixedly installed on the edge of the guardrail (1) away from the first connecting groove (2); the connector (4) has a plurality of third connecting grooves (5); Multiple snap-fit ​​mechanisms are installed in multiple third connecting slots (5); each snap-fit ​​mechanism has a first state and a second state. In the first state, the snap-fit ​​mechanism is located in the third connecting groove (5); In the second state, the snap-fit ​​mechanism protrudes from the third connecting groove (5) and extends into the second connecting groove (3); The triggering mechanism is installed on the connecting body (4) and is inserted into the locking mechanism. It is used to limit the locking mechanism so that the locking mechanism is kept in the first state; it is also used to separate from the locking mechanism when subjected to external force so that the locking mechanism can switch from the first state to the second state.

2. The easy-to-assemble guardrail according to claim 1, characterized in that, The third connecting groove (5) has a connecting post (6); The latching mechanism includes: The snap-fit ​​flap (7) is provided with an elongated hole (8) and a limiting hole (9). The limiting hole (9) is used to connect with the triggering mechanism to limit the locking flap (7); The connecting post (6) passes through the elongated hole (8); the snap-fit ​​flap (7) can slide relative to the connecting post (6) in a direction perpendicular to the connecting post (6); The first elastic element (10) is disposed in the elongated hole (8), with one end connected to the connecting post (6) and the other end connected to the inner wall of the elongated hole (8), for driving the snap-fit ​​flap (7) to protrude from the third connecting groove (5).

3. The easy-to-assemble guardrail according to claim 2, characterized in that, The connector (4) is also provided with a fourth connecting groove (11); the fourth connecting groove (11) is connected to the limiting hole (9); The triggering mechanism includes: A claw (12) is slidably mounted in the fourth connecting groove (11); the claw (12) has multiple locking ends (13). The second elastic element (14) has one end fixedly connected to the claw (12) and the other end fixedly connected to the inner wall of the fourth connecting groove (11). The claw (12) has a third state and a fourth state; In the third state, the snap-fit ​​end (13) is inserted into the limiting hole (9) to limit the snap-fit ​​flap (7); In the fourth state, the snap-fit ​​end (13) is separated from the limiting hole (9).

4. The easy-to-assemble guardrail according to claim 3, characterized in that, The triggering mechanism further includes: Trigger rod (15), one end of which is fixedly connected to the claw (12), and the other end extends out of the fourth connecting groove (11). It is used to contact the inner wall of the first connecting groove (2) when the plug-in assembly is inserted into the first connecting groove (2), and drive the claw (12) to switch to the fourth state.

5. A fence that is easy to assemble according to claim 1, characterized in that, Also includes: Guardrail connector (16) is used to fix two adjacent guardrails (1) at the same time and to fix the relative position of the two adjacent guardrails (1).

6. A fence that is easy to assemble according to claim 1, characterized in that, The guardrail (1) is mounted on the base (17); the base (17) has a protrusion (18). The guardrail (1) has a fifth connecting groove (19) on the edge near the base (17); the fifth connecting groove (19) matches the shape of the protrusion (18) and is used to engage with each other to fix the relative position of the guardrail (1) and the base (17).

7. A fence that is easy to assemble according to claim 6, characterized in that, The guardrail (1) is fixedly connected to the base (17) by connecting bolts (20); the end of the connecting bolt (20) connected to the base (17) is coated with adhesive to bond the connecting bolt (20) to the base (17).

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