A tensile metal joint
By designing a tensile metal joint containing a buffer assembly, the problem of existing cable metal joints prone to break under high loads is solved, and effective stress cushioning and durability improvement is achieved.
Patent Information
- Application Number
- CN202420667564.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-02
AI Technical Summary
Existing cable metal joints are prone to stress concentration when subjected to high loads, resulting in breakage or damage.
A tensile metal joint is designed, including an inner tube, an outer tube, a buffer assembly and a fixing assembly. The cushioning assembly consists of a male buckle, a female buckle, a telescopic rod and a spring. The cushioning effect is provided by the cooperation of the sliding and telescopic rod.
When subjected to high loads or cyclic loads, the buffer assembly effectively reduces stress concentration, prevents breakage and collapse, and improves the durability of cable joints.
Smart Images
Figure CN222721117U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable construction, in particular to a tensile metal joint. Background Art
[0002] Cable metal joints are a device or component used to connect cables, usually made of metal. Their main task is to ensure the smooth transmission of current and protect the connection points from damage by the external environment. Cable metal joints are widely used in power systems, industrial and mining enterprises, and construction installation projects. They have the functions of fixing high-voltage conductors on lines or towers, protecting conductors from external damage, preventing electric shock accidents, making construction safer, facilitating maintenance and replacement, and improving labor productivity.
[0003] The utility model with the authorization publication number CN216751157U provides a metal double-shrink waterproof joint for high-tensile cables, which belongs to the technical field of "cable construction" and the protected claims are: "The sealing mechanism includes a sealing head, a movable sealing ring, a telescopic sealing block, a sealing tube and a sealing spring; the sealing head is fixedly connected to the surface of the joint tube; the movable sealing ring is movably connected between the sealing head and one end of the joint tube; the telescopic sealing block is movably connected to the right side of the sealing head; one end of the sealing tube is fixedly connected to the surface of the telescopic sealing block; the sealing spring is movably connected to the surface of the sealing tube".
[0004] In this device, although the sealing of the cable joint can be improved and the waterproof effect can be optimized, when the device is subjected to high load, stress concentration will occur, and it is more likely to break or be damaged when subjected to stress. For this reason, we propose a tensile metal joint. Utility Model Content
[0005] The purpose of the utility model is to provide a tensile metal joint to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A tensile metal joint comprises an inner tube, an outer tube, a buffer assembly and a fixing assembly, wherein the outer tube is slidably sleeved outside the inner tube, the buffer assembly is arranged on the inner tube and the outer tube, and the fixing assembly is arranged at one end of the inner tube;
[0008] The buffer assembly includes a male buckle and a female buckle; the male buckle is rotatably connected to the outside of the inner tube, the bottom surface of the male buckle is fixedly connected to a first telescopic rod, the bottom end of the first telescopic rod extends into the inner tube and is telescopically connected therein, and a first spring is sleeved on the outside of the first telescopic rod; the female buckle is fixedly connected to the outside of the outer tube, two sliding grooves are opened on the inner side of the female buckle, a sliding rod is slidably connected between the two sliding grooves, one side of the sliding rod is fixedly connected to two second telescopic rods, one end of the two second telescopic rods passes through one end of the female buckle and extends into the outer tube, and the outside of the two second telescopic rods is sleeved with a second spring.
[0009] Preferably, the number of the buffer components is set to multiple groups, and the multiple groups of buffer components are all arranged around the central axis of the inner tube and the outer tube.
[0010] Preferably, the outer sliding sleeve of the outer tube is provided with a release sleeve.
[0011] Preferably, the shapes of the plurality of male buckles are all set to be triangular prisms, the shapes of the three female buckles are all set to be frame-shaped, and the three male buckles and the female buckles are all fitted and snap-connected.
[0012] Preferably: the fixing assembly comprises an extension tube, a fixing claw, a fixing sleeve and a telescopic ring; the extension tube is fixedly connected to one end of the inner tube, and a thread is provided on the outer side of the extension tube; the fixing claw is fixedly connected to one end of the extension tube; the fixing sleeve is rotatably mounted on the outside of the extension tube; the telescopic ring is telescopically connected to the outside of the extension tube, a third spring is mounted on the outer side of the telescopic ring, and a ball is rotatably connected inside the telescopic ring.
[0013] Preferably, the number of the fixing claws is set to be multiple, the multiple fixing claws are all arranged around the central axis of the extension tube, and the shapes of the multiple fixing claws are all set to be S-shaped.
[0014] Preferably, the inner side of the fixing sleeve is connected with the thread.
[0015] Preferably, the number of the telescopic ring, the third spring and the ball is set to be multiple, and the multiple telescopic rings, the third spring and the ball are all arranged around the central axis of the extension tube.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] By setting up a buffer component, stress concentration will be caused when subjected to high load or cyclic load. At this time, the two sections of the cable are subjected to force, which drives the inner tube to move, and the movement of the inner tube drives multiple male buckles to move synchronously. The movement of multiple male buckles will drive the slide bar to slide between the two slide grooves in the female buckle, thereby driving the second telescopic rod and the second spring to expand and contract. The second spring rebounds under force to provide buffering. By effectively buffering when the two sections of the cable are subjected to high loads, the problem of breakage and collapse caused by stress concentration can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 The utility model Figure 1 Exploded diagram of local structure in;
[0020] Figure 3 It is a schematic diagram of the male buckle structure in the utility model;
[0021] Figure 4 This utility model Figure 2 A magnified image of point A;
[0022] Figure 5 It is a schematic diagram of the ball structure in the utility model.
[0023] In the figure: 1. inner tube; 2. outer tube; 3. buffer assembly; 4. fixing assembly; 31. male buckle; 32. first telescopic rod; 33. first spring; 34. female buckle; 35. slide groove; 36. slide rod; 37. second telescopic rod; 38. second spring; 39. release sleeve; 41. extension tube; 42. thread; 43. fixing claw; 44. fixing sleeve; 45. telescopic ring; 46. third spring; 47. ball. DETAILED DESCRIPTION
[0024] 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.
[0025] Embodiment 1
[0026] like Figure 1-4 As shown, a tensile metal joint comprises an inner tube 1, an outer tube 2, a buffer assembly 3 and a fixing assembly 4, characterized in that the outer tube 2 is slidably sleeved outside the inner tube 1, the buffer assembly 3 is arranged on the inner tube 1 and the outer tube 2, and the fixing assembly 4 is arranged at one end of the inner tube 1;
[0027] The buffer assembly 3 includes a male buckle 31 and a female buckle 34; the male buckle 31 is rotatably connected to the outside of the inner tube 1, and the bottom surface of the male buckle 31 is fixedly connected to the first telescopic rod 32, the bottom end of the first telescopic rod 32 extends into the inner tube 1 and is telescopically connected therein, and the outside of the first telescopic rod 32 is sleeved with a first spring 33; the female buckle 34 is fixedly connected to the outside of the outer tube 2, and two sliding grooves 35 are opened on the inner side of the female buckle 34, and a sliding rod 36 is slidably connected between the two sliding grooves 35, and one side of the sliding rod 36 is fixedly connected to two second telescopic rods 37, one end of the two second telescopic rods 37 both pass through one end of the female buckle 34 and extend into the outer tube 2, and the outside of the two second telescopic rods 37 are sleeved with a second spring 38.
[0028] In this embodiment, when subjected to high load or cyclic load, stress concentration will occur. At this time, the two sections of the cable are subjected to force, driving the inner tube 1 to move, and the movement of the inner tube 1 drives the multiple male buckles 31 to move synchronously. The movement of the multiple male buckles 31 will drive the slide rod 36 to slide between the two slide grooves 35 in the female buckle 34, thereby driving the second telescopic rod 37 and the second spring 38 to extend and retract. The second spring 38 is subjected to force and rebounds to provide buffering.
[0029] like Figure 1-2 As shown, further, the outer sliding sleeve of the outer tube 2 is provided with a release sleeve 39.
[0030] During specific implementation, the release sleeve 39 is moved to the position of the male buckle 31, and the male buckle 31 can be squeezed inward to release the male buckle 31 from the female buckle 34, so that the two sections of the cable can be quickly disconnected.
[0031] Embodiment 2
[0032] like Figure 2-5 As shown, in this embodiment, the fixing assembly 4 includes an extension tube 41, a fixing claw 43, a fixing sleeve 44 and a telescopic ring 45; the extension tube 41 is fixedly connected to one end of the inner tube 1, and a thread 42 is provided on the outer side of the extension tube 41; the fixing claw 43 is fixedly connected to one end of the extension tube 41; the fixing sleeve 44 is rotatably sleeved on the outside of the extension tube 41; the telescopic ring 45 is telescopically connected to the outside of the extension tube 41, and a third spring 46 is sleeved on the outside of the telescopic ring 45, and a ball 47 is rotatably connected inside the telescopic ring 45.
[0033] In this embodiment, by combining with the first embodiment, two sections of cables are respectively passed through two inner tubes 1, and the remaining wiring is performed. Then, the fixing sleeve 44 at one end is rotated, and the fixing sleeve 44 rotates and moves toward the inner tube 1. When it is rotated to the position of the fixing claw 43, multiple fixing claws 43 are squeezed, and the inner ends of multiple fixing claws 43 are squeezed to clamp the cable to prevent the cable from detaching. At the same time, when the fixing sleeve 44 is rotated to the position of the ball 47, the ball 47 is squeezed, and the telescopic ring 45 is driven to expand and contract. Multiple balls 47 are squeezed inwardly to also clamp the cable. In this way, after the secondary fixing The male buckle 31 is squeezed when it moves to the position of the female buckle 34, and the male buckle 31 rebounds under the action of the first telescopic rod 32 and the first spring 33, clamps the female buckle 34, and then the inner tube 1 at the other end is extended into the outer tube 2, and the male buckle 31 and the female buckle 34 are clamped together. Finally, the fixing sleeve 44 at the other end is rotated to fix it, and the cable at the other end can be fixed. In this way, the two sections of cable can be connected to avoid separation due to force.
[0034] like Figure 2 As shown, further, the shapes of the multiple fixing claws 43 are all set to be S-shaped, and the S-shaped setting can ensure that when the fixing sleeve 44 squeezes the fixing claws 43, the inner ends of the multiple fixing claws 43 can cooperate to clamp the cable.
[0035] like Figure 2 and Figure 5 As shown, further, the ball 47 is wrapped inside the telescopic ring 45 and can rotate freely.
[0036] Furthermore, the two sections of the cable are connected with a surplus. This reserved cable length can ensure that there is enough space for operation when the cable is connected, repaired or replaced, avoiding problems caused by insufficient cable length. At the same time, the surplus wiring can also provide a certain degree of flexibility to adapt to the disconnection problem caused by cable stretching under high load, so as to synchronize the operation of the buffer component 3.
[0037] Working principle: First, pass the two sections of cable through the two inner tubes 1 respectively, make the remaining wiring, and then rotate the fixing sleeve 44 at one end, the fixing sleeve 44 rotates and moves toward the inner tube 1, and when it rotates to the position of the fixing claw 43, it squeezes multiple fixing claws 43, and the inner ends of the multiple fixing claws 43 are squeezed to clamp the cable to prevent the cable from detaching. At the same time, when the fixing sleeve 44 rotates to the position of the ball 47, it squeezes the ball 47, driving the telescopic ring 45 to retract, and the inward squeezing of multiple balls 47 will also clamp the cable. In this way, after secondary fixation, the cable can be prevented from detaching. After fixing one end of the cable, extend the inner tube 1 at one end into the outer tube 2. At this time, the male buckle 31 is squeezed, and when it moves to the position of the female buckle 34, the male buckle 31 rebounds under the action of the first telescopic rod 32 and the first spring 33, and clamps the female buckle. Buckle 34, and then extend the inner tube 1 at the other end into the outer tube 2, and clamp it through the male buckle 31 and the female buckle 34, and finally rotate the fixing sleeve 44 at the other end to fix it, so that the cable at the other end can be fixed. In this way, the two sections of the cable can be connected to avoid force separation. When subjected to high load or cyclic load, stress concentration will be caused. At this time, the two sections of the cable are subjected to force, driving the inner tube 1 to move, and the movement of the inner tube 1 drives multiple male buckles 31 to move synchronously. The movement of multiple male buckles 31 will drive the slide bar 36 to slide between the two slide grooves 35 in the female buckle 34, thereby driving the second telescopic rod 37 and the second spring 38 to expand and contract. The second spring 38 rebounds under force to provide buffering. By effectively buffering when the two sections of the cable are subjected to high loads, the problem of breakage and collapse caused by stress concentration can be avoided.
[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A tensile metal joint, comprising an inner tube, an outer tube, a buffer component and a fixing component, characterized in that: The outer tube is slidably sleeved outside the inner tube, the buffer assembly is arranged on the inner tube and the outer tube, and the fixing assembly is arranged at one end of the inner tube; The buffer assembly includes a male buckle and a female buckle; the male buckle is rotatably connected to the outside of the inner tube, the bottom surface of the male buckle is fixedly connected to a first telescopic rod, the bottom end of the first telescopic rod extends into the inner tube and is telescopically connected therein, and a first spring is sleeved on the outside of the first telescopic rod; the female buckle is fixedly connected to the outside of the outer tube, two sliding grooves are opened on the inner side of the female buckle, a sliding rod is slidably connected between the two sliding grooves, one side of the sliding rod is fixedly connected to two second telescopic rods, one end of the two second telescopic rods passes through one end of the female buckle and extends into the outer tube, and the outside of the two second telescopic rods is sleeved with a second spring.
2. A tensile metal joint according to claim 1, characterized in that: The number of the buffer components is set to be multiple groups, and the multiple groups of buffer components are all arranged around the central axis of the inner tube and the outer tube.
3. A tensile metal joint according to claim 1, characterized in that: The outer sliding sleeve of the outer tube is provided with a release sleeve.
4. A tensile metal joint according to claim 1, characterized in that: The shapes of the plurality of male buckles are all set to be triangular prisms, the shapes of the three female buckles are all set to be frame-shaped, and the three male buckles and the female buckles are all fitted and snap-connected.
5. The tensile metal joint according to claim 1, characterized in that: The fixing assembly includes an extension tube, a fixing claw, a fixing sleeve and a telescopic ring; the extension tube is fixedly connected to one end of the inner tube, and a thread is provided on the outer side of the extension tube; the fixing claw is fixedly connected to one end of the extension tube; the fixing sleeve is rotatably sleeved on the outside of the extension tube; the telescopic ring is telescopically connected to the outside of the extension tube, a third spring is sleeved on the outer side of the telescopic ring, and a ball is rotatably connected inside the telescopic ring.
6. A tensile metal joint according to claim 5, characterized in that: The number of the fixing claws is set to be multiple, and the multiple fixing claws are all arranged around the central axis of the extension tube, and the shapes of the multiple fixing claws are all set to be S-shaped.
7. The tensile metal joint according to claim 5, characterized in that: The inner side of the fixing sleeve is connected with the thread.
8. The tensile metal joint according to claim 5, characterized in that: The number of the telescopic ring, the third spring and the ball is set to be multiple, and the multiple telescopic rings, the third spring and the ball are all arranged around the central axis of the extension tube.