Quick connecting piece with limiting function

Abstract

The utility model discloses a quick connecting piece with a limiting function, belongs to the technical field of guardrail accessories, and aims to solve the technical problems that in the prior art, the guardrail connection is easy to cause paint surface damage, and the guardrail performance is influenced. The quick connecting piece with the limiting function comprises a connecting shell sleeve used for connecting guardrail pieces, the connecting shell sleeve is provided with at least two connecting ports, and the connecting ports are matched with the end contours of the guardrail pieces; a flexible protective sleeve is arranged in a connecting port of the connecting shell sleeve and matched with the end of the guardrail piece in a sleeved mode, and a limiting ring is arranged on the inner wall of the connecting port of the connecting shell sleeve. The connecting shell sleeve is divided into two parts in the opening direction of the connecting port. According to the quick connecting piece with the limiting function, a special structural design is adopted, an installation worker can quickly assemble and connect a guardrail piece through the connecting piece, on-site trepanning and arrangement of a flexible sheath are not needed, damage to the paint surface of the end of the guardrail piece is avoided, and the service life of the guardrail piece is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of guardrail accessories, specifically relating to a quick connector with a limiting function. Background Technology

[0002] With the continuous acceleration of urbanization, the demand for traffic safety and environmental beautification is becoming increasingly prominent. As an important safety facility in areas such as roads, bridges, structures, work platforms, and stair handrails, guardrails have received widespread attention for their performance and ease of installation.

[0003] Traditional guardrail installation typically uses pins or bolts for locking. During construction, excessive bolt tightening depth can damage the paint on the pipes, leading to dampness and rust after water accumulation. This significantly reduces the quality, strength, and appearance of critical guardrail connections. Furthermore, the traditional bolt-locking method requires drilling into the guardrail, increasing labor costs and failing to ensure the paint remains intact after friction between the bolt and the guardrail, thus reducing durability. Therefore, this application proposes a quick-connect fitting with a limiting function. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a quick connector with a limiting function, which aims to solve the technical problem that the connection of guardrails under the existing technology is prone to paint damage and affects the performance of the guardrails.

[0005] To solve the above-mentioned technical problems, this utility model provides a quick connector with a limiting function, including a connecting shell for connecting guardrail components. The connecting shell has at least two connecting ports, which match the end contours of the guardrail components. A flexible sleeve is provided inside the connecting ports of the connecting shell, and the flexible sleeve fits into the end of the guardrail component. A limiting ring is provided on the inner wall of the connecting port of the connecting shell.

[0006] The connecting shell is divided into two parts along the opening direction of the connecting port, and the two connecting shell parts are bolted together.

[0007] Preferably, the guardrail component is divided into an upper shell and a lower shell along the opening direction of the connection port. A stud is fixed inside the lower shell, and a sleeve is threaded through the upper shell, with the sleeve and stud being threadedly engaged.

[0008] Preferably, the top of the sleeve is provided with an internal hexagonal end, and a groove is provided on the outer wall of the upper housing, so that the internal hexagonal end can be completely embedded in the groove.

[0009] Preferably, the end cap is welded to the end of the guardrail component, and the limiting ring prevents the end cap from disengaging from the connection port of the connecting shell.

[0010] Preferably, a limiting piece is provided on the inner wall of the connecting shell near the connecting port, and the end cap of the guardrail component is fitted between the limiting piece and the limiting ring.

[0011] Preferably, the flexible sheath is symmetrically divided into two sections along the opening direction of the connection port, and the two flexible sheath sections are respectively arranged in the connection ports of the upper shell and the lower shell.

[0012] Preferably, the flexible sheath is made of rubber.

[0013] Preferably, the inner diameter of the connecting sleeve gradually decreases from the middle towards the connecting port, the inner diameter of the limiting ring is the same as the inner diameter of the connecting port of the connecting sleeve, and a reinforcing strip is provided at the middle position of the inner wall of the connecting sleeve.

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

[0015] This utility model symmetrically divides the guardrail into an upper shell and a lower shell, and includes a limiting ring installed inside the connection port of the guardrail. After the end cap of the guardrail is welded to the end, it is embedded between the limiting ring and the limiting piece inside the upper or lower shell. The flexible sleeve fits snugly against the guardrail, and the upper and lower shells are spliced ​​and fixed together using a sleeve and a stud threaded connection to form a complete connecting shell. Under the limitation of the limiting ring and the limiting piece, the end of the guardrail can be restricted from separating from the connecting shell, and the guardrail can also be restricted from extending into the connecting shell. Installers can quickly assemble and connect the guardrail using this connector without the need for on-site drilling. In addition, the flexible sleeve installed inside the connection port fits snugly against the guardrail, preventing damage to the painted surface of the end of the guardrail and greatly extending the service life of the guardrail.

[0016] This utility model significantly improves the connection strength of the guardrail component and enhances its durability through a structural design where the inner diameter of the connecting sleeve gradually decreases from the middle towards the connecting port, the inner diameter of the limiting ring is the same as the inner diameter of the connecting port of the connecting sleeve, and a reinforcing strip is provided at the middle position of the inner wall of the connecting sleeve. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention applied to the connection of guardrail components;

[0019] Figure 2This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a side view of the present invention applied to the connection of guardrail components;

[0021] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0022] Figure 5 A schematic diagram of the internal structure at the connection between the connecting shell and the guardrail component;

[0023] Figure 6 This is a schematic diagram of the disassembled connecting shell in this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the lower shell after the flexible sheath has been removed in this utility model;

[0025] Figure 8 This is a structural schematic diagram of the guardrail components.

[0026] The markings in the attached diagram are as follows: 1. Guardrail component; 2. Connecting housing; 3. Connecting port; 4. Flexible sheath; 5. Limiting ring; 6. Limiting piece; 7. End cap; 8. Upper housing; 9. Lower housing; 10. Stud; 11. Sleeve; 12. Hexagonal socket end; 13. Groove; 14. Reinforcing strip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This embodiment provides a quick connector with a limiting function, the structural diagram of which is shown below. Figures 1-8As shown, the system includes a connecting sleeve 2 for connecting guardrail components 1. The connecting sleeve 2 has at least two connecting ports 3, which match the end contours of the guardrail components 1. Multiple connecting ports 3 can be used to connect multiple guardrail components 1. A flexible sheath 4 is provided inside the connecting ports 3 of the connecting sleeve 2, and the flexible sheath 4 is sleeved with the end of the guardrail component 1. A limit ring 5 is provided on the inner wall of the connecting ports 3 of the connecting sleeve 2. The connecting sleeve 2 is divided into two parts along the opening direction of the connecting ports 3, and the two connecting sleeves 2 are bolted together. An end cap 7 is welded to the end of the guardrail component 1 to prevent impurities and other foreign objects from entering the guardrail component 1. The guardrail component 1 can be a round or square tube. The guardrail component 1 has a matching and fitting structure. Specifically, after the end cap 7 is welded to the end of the guardrail component 1, it is embedded in the connection port 3 of one of the connecting shells 2. The end cap 7 is located on the side of the limiting ring 5 facing the inside of the connecting shell 2, and the two connecting shells 2 are connected and fixed. The flexible sleeve 4 is close to the end surface of the guardrail component 1. At this time, the limiting ring 5 prevents the end cap 7 from disengaging from the connection port 3 of the connecting shell 2. The installer can quickly assemble and connect the guardrail component 1 through this connector without the need for on-site drilling. In addition, the flexible sleeve 4 is set in the connection port 3 and fits snugly on the guardrail component 1, which will not cause damage to the paint surface of the end of the guardrail component 1, greatly extending the service life of the guardrail component 1.

[0029] In a preferred embodiment of this invention, the guardrail component 1 is divided into an upper housing 8 and a lower housing 9 along the opening direction of the connection port 3. A stud 10 is fixed inside the lower housing 9, and a sleeve 11 passes through the upper housing 8. The sleeve 11 and the stud 10 are threadedly engaged. By utilizing the threaded engagement of the stud 10 and the sleeve 11, the upper housing 8 and the lower housing 9 can be fixedly connected to form a complete connecting sleeve 2 for connecting the guardrail component 1. The top end of the sleeve 11 is provided with an internal hexagonal end 12, and a groove 13 is formed on the outer wall of the upper housing 8, allowing the internal hexagonal end 12 to be completely embedded in the groove 13.

[0030] In a further embodiment, a limiting piece 6 is provided on the inner wall of the connecting sleeve 2 near the connecting port 3. The end cap 7 of the guardrail 1 is fitted between the limiting piece 6 and the limiting ring 5. The limiting ring 5 can restrict the guardrail 1 from separating from the connecting sleeve 2, and the limiting piece 6 can restrict the guardrail 1 from extending into the connecting sleeve 2, thereby achieving a stable connection of the guardrail 1.

[0031] In this embodiment, the flexible sheath 4 is symmetrically divided into two sections along the opening direction of the connection port 3. The two sections of the flexible sheath 4 are respectively arranged in the connection port 3 of the upper housing 8 and the lower housing 9, which facilitates the connection and assembly of the guardrail 1 and the connection sleeve 2. The flexible sheath 4 is made of rubber.

[0032] In a further embodiment, the inner diameter of the connecting sleeve 2 gradually decreases from the middle towards the connecting port 3, the inner diameter of the limiting ring 5 is the same as the inner diameter of the connecting port 3 of the connecting sleeve 2, and a reinforcing strip 14 is provided at the middle position of the inner wall of the connecting sleeve 2. This structural design greatly improves the connection strength of the guardrail 1 and enhances the durability of the connector.

[0033] Working principle: In use, according to the shape and size of the guardrail component 1, a connecting sleeve 2 with a corresponding size and structure is matched. First, an end cap 7 is welded to the end of the guardrail component 1 to prevent impurities and other foreign objects from entering the guardrail component 1. The side of the end cap 7 protrudes from the surface of the guardrail component 1, separating the upper shell 8 and the lower shell 9. The end cap 7 at the end of the guardrail component 1 is embedded in the connecting port 3 of the upper shell 8 or the lower shell 9. The end cap 7 is snapped between the limiting ring 5 and the limiting piece 6. The flexible sleeve 4 fits against the guardrail component 1. Then, the upper shell 8 and the lower shell 9 are fitted together, and the upper shell 8 and the lower shell 9 are fixedly connected by the sleeve 11 and the stud 10 to form a complete connecting sleeve 2. At this time, the end of the guardrail component 1 is limited by the limiting ring 5 and the limiting piece 6. This connector not only restricts the separation of guardrail component 1 and connecting sleeve 2, but also restricts guardrail component 1 from extending into the connecting sleeve 2. As a result, installers can quickly assemble and connect guardrail component 1 using this connector without the need for on-site drilling. In addition, the flexible sleeve 4 inside the connecting port 3 fits snugly onto the guardrail component 1, preventing damage to the painted surface at the end of the guardrail component 1 and greatly extending the service life of the guardrail component 1. Furthermore, the inner diameter of the connecting sleeve 2 gradually decreases from the middle towards the connecting port 3, the inner diameter of the limiting ring 5 is the same as the inner diameter of the connecting port 3 of the connecting sleeve 2, and the structural design of the reinforcing strip 14 located in the middle of the inner wall of the connecting sleeve 2 greatly improves the connection strength of the guardrail component 1.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick connector with limiting function, comprising a connecting shell (2) for connecting a guardrail (1), characterized in that: the connecting shell (2) has at least two connecting ports (3) matched with the end profile of the guardrail (1); a flexible sheath (4) is arranged inside the connecting port (3) of the connecting shell (2), and the flexible sheath (4) is matched with the end sleeve of the guardrail (1); a limiting ring (5) is arranged on the inner wall of the connecting port (3) of the connecting shell (2); the connecting shell (2) is divided into two parts along the opening direction of the connecting port (3), and the two parts of the connecting shell (2) are bolted. The guardrail (1) is divided into an upper shell (8) and a lower shell (9) along the opening direction of the connecting port (3), the lower shell (9) is fixed with a stud (10) inside, the upper shell (8) is provided with a sleeve (11) penetratingly arranged thereon, and the sleeve (11) is threadedly matched with the stud (10). The sleeve (11) is provided with an internal hexagonal end (12) at the top end, the upper shell (8) is provided with a groove (13) on the outer wall, and the internal hexagonal end (12) can be completely embedded in the groove (13). The end of the guardrail (1) is welded with an end cover (7), and the limiting ring (5) limits the end cover (7) from being separated from the connecting port (3) of the connecting shell (2).

2. The quick connector with a limiting function according to claim 1, characterized in that, A limiting piece (6) is arranged on the inner wall of the connecting shell (2) close to the connecting port (3), and the end cover (7) of the end of the guardrail (1) is clamped between the limiting piece (6) and the limiting ring (5).

3. The quick connector with a limiting function according to claim 2, characterized in that, The flexible sheath (4) is symmetrically divided into two sections along the opening direction of the connecting port (3), and the two sections of the flexible sheath (4) are arranged in the connecting port (3) of the upper shell (8) and the lower shell (9) respectively.

4. The quick connector with a limiting function according to claim 1, characterized in that, The flexible sheath (4) is made of rubber material.

5. The quick connector with a limiting function according to claim 1, wherein The inner diameter of the connecting shell (2) gradually decreases from the middle part to the connecting port (3), the inner diameter of the limiting ring (5) is the same as that of the connecting port (3) of the connecting shell (2), and a reinforcing strip (14) is arranged on the middle part of the inner wall of the connecting shell (2).

6. The quick connector with a limiting function according to claim 2, wherein ​ 7. The quick connector with a limiting function according to claim 1, wherein ​ 8. The quick connector with a limiting function according to claim 1, wherein ​

Images