A raceway fitting

Abstract

This utility model discloses a conduit connector, including a connecting pipe, an extrusion member, a locking ring, and a rubber ring. The connecting pipe has mounting grooves extending circumferentially through both ends. The extrusion member is slidably connected in the mounting grooves. The inner end of the extrusion member has a guide surface and a support surface. The support surface is parallel to the outer surface of the conduit and has a friction layer. The guide surface surrounds the support surface. When the guide surface is compressed by the conduit, it can drive the extrusion member to move outward. The rubber ring is fitted around both ends of the connecting pipe, with the inner side of the rubber ring abutting against the outer end of the extrusion member. The locking ring is detachably connected to the outer sides of both ends of the connecting pipe, with the inner side of the locking ring abutting against the outer side of the rubber ring. This utility model provides a conduit connector that is convenient and labor-saving to install.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a conduit connector. Background Technology

[0002] In building electrical wiring and industrial electrical equipment wiring, conduits are widely used to organize and protect cables. Existing conduits are connected by threads or adhesive. Threaded connections require precise alignment of the threads at the end of the conduit and tightening one turn at a time. For long-distance, multi-conduit installations, this is time-consuming and labor-intensive, and subsequent maintenance and disassembly are also quite troublesome. While adhesive bonding is relatively simple to operate, the curing time after bonding is long. Utility Model Content

[0003] To address the aforementioned shortcomings of existing conduit connection methods, this invention proposes a conduit connector that is convenient and labor-saving to install.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A conduit connector includes a connecting pipe, an extrusion member, a locking ring, and a rubber ring. The connecting pipe has mounting grooves extending circumferentially through both ends. The extrusion member is slidably connected in the mounting grooves. The inner end of the extrusion member has a guide surface and a support surface. The support surface is parallel to the outer surface of the conduit. A friction layer is provided on the support surface. The guide surface is arranged around the support surface. When the guide surface is extruded by the conduit, it can drive the extrusion member to move outward. The rubber ring is fitted on both ends of the connecting pipe, and the inner side of the rubber ring abuts against the outer end of the extrusion member. The locking ring is detachably connected to the outer sides of both ends of the connecting pipe, and the inner side of the locking ring abuts against the outer side of the rubber ring.

[0006] The connector includes a first state and a second state. In the first state, the outer end of the extrusion member is flush with the outer surface of the connecting tube, and the inner end of the extrusion member protrudes from the inner surface of the connecting tube. In the second state, the outer end of the extrusion member protrudes from the outer surface of the connecting tube, and the friction layer is attached to the outer surface of the conduit.

[0007] With the above setup, firstly, the plug-in connection conduit makes installation more convenient, labor-saving, and efficient; secondly, the structure is simple and easy to assemble.

[0008] Furthermore, the inner end of the mounting groove narrows inward to form a first limiting platform, and the outer periphery of the extruded part protrudes to form an annular protrusion. The annular protrusion is located outside the first limiting platform. In the first state, the first limiting platform abuts against the annular protrusion.

[0009] With the above settings, the first limiting platform prevents the extruded part from falling into the connecting pipe.

[0010] Furthermore, the rubber ring includes a support part and a sealing part. The sealing part is fixedly connected to the side of the support part away from the middle of the connecting tube in the circumferential direction. The support part is sleeved on both ends of the connecting tube. The inner side of the support part abuts against the outer end of the extrusion part, and the outer side of the support part abuts against the inner side of the locking ring. The sealing part is attached to the end face of the connecting tube. In the second state, the inner circumference of the sealing part abuts against the outer surface of the conduit.

[0011] The above settings improve the sealing performance of the connector after it is connected to the conduit, preventing external dust and moisture from entering the conduit.

[0012] Furthermore, in the second state, the height of the extruded part protruding from the outer surface of the connecting tube is H, 0.5mm. <H<1mm。

[0013] Furthermore, the connecting pipe is provided with external threads at both ends. The external threads are located on the side of the mounting groove near the middle of the connecting pipe, and the locking ring is screwed onto both ends of the connecting pipe through the external threads.

[0014] The above settings facilitate the installation and removal of the locking ring.

[0015] Furthermore, the locking ring is provided with an inner flange, which abuts against the side of the sealing part away from the connecting pipe.

[0016] The above settings increase the stability of the locking ring and the rubber ring.

[0017] Furthermore, a second limiting platform is provided at both ends of the connecting pipe along the outer periphery, and the second limiting platform abuts against the side of the support near the middle of the connecting pipe.

[0018] The above settings prevent the rubber ring from shifting when the locking ring is installed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connector connecting the conduit in an embodiment.

[0020] Figure 2 for Figure 1 A schematic diagram showing the hidden rubber ring and locking ring.

[0021] Figure 3 This is a cross-sectional view of the connector and conduit used in an embodiment.

[0022] Figure 4 for Figure 3 Enlarged view of point A.

[0023] Figure 5 This is a schematic diagram of the first state of the connector in an embodiment. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] like Figures 1 to 5 A conduit connector includes a connecting pipe 3, an extrusion member 4, a locking ring 5, and a rubber ring 6. The connecting pipe 3 has mounting grooves 7 extending inward and outward along both ends in the circumferential direction. The extrusion member 4 is slidably connected in the mounting grooves 7. The inner end of the extrusion member 4 is provided with a guide surface 8 and a support surface 9. The support surface 9 is parallel to the outer surface of the conduit 20. A friction layer 10 is provided on the support surface 9. The guide surface 8 is arranged around the support surface 9. After the guide surface 8 is extruded by the conduit, it can drive the extrusion member 4 to move outward. The rubber ring 6 is sleeved on both ends of the connecting pipe 3. The inner side of the rubber ring 6 abuts against the outer end of the extrusion member 4. The locking ring 5 is detachably connected to the outer side of both ends of the connecting pipe 3. The inner side of the locking ring 5 abuts against the outer side of the rubber ring 6.

[0026] The connector includes a first state and a second state. In the first state, the outer end of the extruder 4 is flush with the outer surface of the connecting tube 3, and the inner end of the extruder 4 protrudes from the inner surface of the connecting tube 3. In the second state, the outer end of the extruder 4 protrudes from the outer surface of the connecting tube 3, and the friction layer 10 is attached to the outer surface of the conduit.

[0027] With the above setup, firstly, the plug-in connection conduit makes installation more convenient, labor-saving, and efficient; secondly, the structure is simple and easy to assemble.

[0028] The connecting tube 3 of this application has a circular tube structure, and its inner diameter is adapted to the outer diameter of the conduit to be connected. Specifically, the ratio of the inner diameter of the connecting tube 3 at both ends to the outer diameter of the conduit is between 105% and 110%. At least four mounting grooves 7 are provided at both ends of the connecting tube 3, and the mounting grooves 7 are evenly distributed circumferentially along the ends of the connecting tube 3. When assembling the connector, first, a pressing member 4 is placed in each mounting groove 7. The inner diameter of the mounting groove 7 is adapted to the outer diameter of the pressing member 4. The pressing member 4 can only slide axially along the mounting groove 7 in the mounting groove 7 and will not move radially. At least four pressing members 4 are provided at both ends of the connecting tube 3 to improve connection stability. A rubber ring 6 is placed on both ends of the connecting tube 3, covering both ends of the connecting tube 3. The inner side of the rubber ring 6 abuts against the outer end of the pressing member 4. A locking ring 5 is detachably connected to both ends of the connecting tube 3, with the inner side of the locking ring 5 abutting against the outer side of the rubber ring 6, providing inward support to the rubber ring 6. At this time, the connector is in the first state, such as... Figure 5 The guide surface 8 protrudes inward onto the inner wall of the connecting pipe 3. Specifically, the guide surface 8 can be chamfered or rounded. When connecting the conduit, the end of the conduit is directly inserted into the end of the connecting pipe 3. After the end of the conduit presses against the guide surface 8, the extrusion member 4 extrudes the rubber ring 6 outward. After the rubber ring 6 deforms, it applies an inward elastic force to the extrusion member 4, clamping the end of the conduit. The friction layer 10 adheres tightly to the end of the conduit, and the connector is in its second state, such as... Figure 4The friction layer 10 can be made of rubber patch to increase the friction between the extrusion part 4 and the conduit, preventing the conduit from being easily pulled out. When it is necessary to disassemble the conduit to repair the line, hold the connector and the conduit with both hands respectively, and pull the conduit out of the connector with force.

[0029] As one implementation, the inner end of the mounting groove 7 narrows inward to form a first limiting platform 11, and the outer periphery of the extrusion part 4 protrudes to form an annular protrusion 12. The annular protrusion 12 is located outside the first limiting platform 11. In the first state, the first limiting platform 11 abuts against the annular protrusion 12.

[0030] With the above settings, the first limiting platform 11 prevents the extrusion piece 4 from falling into the connecting pipe 3.

[0031] As one implementation, the rubber ring 6 includes a support part 61 and a sealing part 62. The sealing part 62 is fixedly connected to the side of the support part 61 away from the middle of the connecting tube 3 in the circumferential direction. The support part 61 is sleeved on both ends of the connecting tube 3. The inner side of the support part 61 abuts against the outer end of the extrusion part 4, and the outer side of the support part 61 abuts against the inner side of the locking ring 5. The sealing part 62 is attached to the end face of the connecting tube 3. In the second state, the inner circumference of the sealing part 62 abuts against the outer surface of the conduit.

[0032] The above settings improve the sealing performance of the connector after it is connected to the conduit, preventing external dust and moisture from entering the conduit.

[0033] The rubber ring 6 of this application is an integrally molded structure with an L-shaped cross-section. The support part 61 is provided outside the extruder 4 to provide elasticity to the extruder 4. The sealing part 62 is used to seal the gap between the connecting tube 3 and the conduit. When the connecting tube is not connected, the inner diameter of the sealing part 62 is smaller than the outer diameter of the conduit. The ratio of the inner diameter of the sealing part 62 to the outer diameter of the conduit is specifically between 90% and 95%. After the conduit is inserted into the connecting tube 3, the sealing part 62 wraps around the conduit to prevent external dust and moisture from entering the conduit.

[0034] As one implementation, in the second state, the height of the extrusion 4 protruding from the outer surface of the connecting pipe 3 is H, 0.5mm. <H<1mm。

[0035] As one implementation, the connecting pipe 3 is provided with external threads 13 at both ends. The external threads 13 are located on the side of the mounting groove 7 near the middle of the connecting pipe 3, and the locking ring 5 is tightened at both ends of the connecting pipe 3 through the external threads 13.

[0036] The above settings facilitate the assembly and disassembly of the locking ring 5.

[0037] As one implementation method, the locking ring 5 is provided with an inner flange 14, which abuts against the side of the sealing part 62 away from the connecting pipe 3.

[0038] The above settings increase the stability of the locking ring 5 and the rubber ring 6.

[0039] The locking ring 5 of this application has an L-shaped cross-section that is consistent with the cross-sectional direction of the rubber ring 6, such as... Figure 4 In the right-side locking ring 5, the inner flange 14 is located on the right side of the locking ring 5. During installation, the locking ring 5 is screwed in to the left until the inner flange 14 presses against the sealing part 62.

[0040] As one implementation method, a second limiting platform 15 is provided at both ends of the connecting pipe 3 along the outer periphery, and the second limiting platform 15 abuts against the side of the support part 61 near the middle of the connecting pipe 3.

[0041] The above settings prevent the rubber ring 6 from shifting when the locking ring 5 is installed.

[0042] Taking the right end as an example, such as Figure 3 and Figure 4 After the rubber ring 6 is inserted into the right end of the connecting pipe 3, the left side of the support part 61 of the rubber ring 6 abuts against the second limiting platform 15, and the sealing part 62 is attached to the right end face of the connecting pipe 3. When the right locking ring 5 is installed, the inner surface of the locking ring 5 will move to the left along the outer surface of the support part 61. Due to the presence of the second limiting platform 15, the support part 61 will not be driven to the left by the locking ring 5 under the action of friction.

[0043] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A conduit connector, comprising: The device includes a connecting tube, an extrusion component, a locking ring, and a rubber ring. The connecting tube has mounting grooves extending circumferentially through both ends. The extrusion component is slidably connected within the mounting grooves. The inner end of the extrusion component has a guide surface and a support surface. The support surface is parallel to the outer surface of the connecting tube and has a friction layer. The guide surface surrounds the support surface. When the guide surface is compressed by the connecting tube, it can drive the extrusion component to move outward. The rubber ring is fitted around both ends of the connecting tube, with its inner side abutting against the outer end of the extrusion component. The locking ring is detachably connected to the outer sides of both ends of the connecting tube, with its inner side abutting against the outer side of the rubber ring. The connector includes a first state and a second state. In the first state, the outer end of the extrusion member is flush with the outer surface of the connecting tube, and the inner end of the extrusion member protrudes from the inner surface of the connecting tube. In the second state, the outer end of the extrusion member protrudes from the outer surface of the connecting tube, and the friction layer is attached to the outer surface of the conduit.

2. A conduit connector according to claim 1, wherein, The inner end of the mounting groove narrows inward to form a first limiting platform. The outer periphery of the extrusion part protrudes to form an annular protrusion. The annular protrusion is located outside the first limiting platform. In the first state, the first limiting platform abuts against the annular protrusion.

3. A conduit connector according to claim 2, wherein, The rubber ring includes a support part and a sealing part. The sealing part is fixedly connected to the side of the support part away from the middle of the connecting tube along the circumferential direction. The support part is sleeved on both ends of the connecting tube. The inner side of the support part abuts against the outer end of the extrusion part. The outer side of the support part abuts against the inner side of the locking ring. The sealing part is attached to the end face of the connecting tube. In the second state, the inner circumference of the sealing part abuts against the outer surface of the conduit.

4. A conduit connector according to claim 3, wherein, In the second state, the height of the extrusion protruding from the outer surface of the connecting pipe is H, 0.5mm. <H<1mm。 5. A conduit connector according to claim 3, characterized in that, The connecting pipe has external threads at both ends, and the external threads are located on the side of the mounting groove near the middle of the connecting pipe. The locking ring is screwed onto both ends of the connecting pipe through the external threads.

6. A conduit connector according to claim 3, characterized in that, The locking ring is provided with an inner flange, which abuts against the side of the sealing part away from the connecting pipe.

7. A conduit connector according to claim 3, characterized in that, The connecting pipe is provided with a second limiting platform along its outer periphery at both ends, and the second limiting platform abuts against the side of the support near the middle of the connecting pipe.

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