Metallic articulation with sound rotation

Abstract

This application discloses a metal audible rotary positioning joint, relating to the field of connector technology. It includes a positioning shaft with a rotary positioning component fixedly installed inside its cavity. Rotary engaging components are sleeved on both sides of the positioning shaft. This invention reduces dust entry into the equipment through a sealing component, ensures stable rotation, and emits a uniform, rhythmic clicking sound during rotation, reducing wear between components caused by dust. The directional component allows for a certain degree of stretching and angular rotation during joint rotation. The concave groove and convex ring provide an axial preload during joint rotation, enabling better application in modern machinery. An alarm component sounds an alarm when the positioning joint is unplannedly inserted or removed, alerting the user that the slot and first pressure rod may have disengaged from their original track, ensuring even rotation. It also facilitates disassembly for later maintenance, saving maintenance costs.

Description

Technical Field

[0001] This application relates to the field of connector technology, and more particularly to metal acoustic rotary positioning joints. Background Technology

[0002] Metal rotary joints are crucial mechanical components widely used in various industrial and technological fields, such as connecting the joints of robots and linking the limbs of toy figures. The main function of the joint is to connect and allow relative rotation of two or more components, seamlessly integrating with the product assembly. This facilitates rapid assembly while preventing water accumulation (e.g., cleaning acids from electroplating / anodizing processes) and seepage of fine materials like abrasive and polishing materials into hollow parts during processing. In many applications, this rotation requires precise control to meet specific usage requirements.

[0003] The existing technology still has the following problems:

[0004] 1. Traditional metal rotary positioning joints are generally made of metal and achieve precise rotary positioning through complex mechanical structure design. However, due to various factors in the manufacturing process, such as material fatigue and wear, the joint performance of metal rotary positioning joints may be unstable, and the internal sealing of metal rotary positioning joints is poor.

[0005] 2. Traditional metal rotary positioning joints can only rotate along one axis during operation, and cannot be adjusted in direction or length. This results in a single rotation angle when used with machines, leading to poor application performance.

[0006] 3. The maintenance and repair of traditional metal audible rotary positioning joints is also a challenge. Due to the complexity of their internal structure, maintenance or repair of the joints often requires professional technicians and complex tools. Furthermore, if the force is not appropriate during rotation, uneven force on the joint rotation will not be able to provide an alarm, and the joint connecting parts may easily separate, resulting in a shortened lifespan of the machine using the metal audible rotary positioning joint. This not only increases the cost of use, but may also affect the normal operation of the equipment. Summary of the Invention

[0007] This application solves the problems of poor sealing inside existing metal rotary positioning joints by providing a metal audible rotary positioning joint, which prevents directional and length adjustments, uneven force during joint rotation and the inability to provide alarm prompts. It achieves that the sealing component can reduce dust entering the equipment, and can achieve a certain stretching and angular rotation during the positioning joint rotation, and will emit an alarm sound when there is unplanned insertion or removal.

[0008] This application provides a metal audible rotary positioning joint, including a positioning shaft. A rotary positioning component is fixedly installed in the inner cavity of the positioning shaft. Rotary engaging components are sleeved on both sides of the positioning shaft. The positioning shaft and the rotary engaging components are rotatably connected. There are two rotary engaging components. An adjusting component is fixedly welded to the outer surface of the rotary engaging component. A fixing ring is fixedly installed on the inner wall of the adjusting component. A sealing component is provided on the side of the adjusting component that is close to each other. An alarm component is fixedly installed in the inner cavity of the positioning shaft. Concave grooves are provided at both ends of the positioning shaft. A textured ring is provided on the inner wall of the adjusting component. The concave grooves and the textured ring are rotatably connected. The rotary positioning component includes a sleeve rod. A receiving cavity is provided inside the sleeve rod. A first pressure rod is slidably connected to the inner cavity of the receiving cavity. A connecting ring is fixedly installed at the end of the first pressure rod near the sleeve rod. A first spring is provided on the inner wall of the sleeve rod.

[0009] Furthermore, the first spring is located between the connecting ring and the inner wall of the sleeve rod, there are four rotary positioning components, the sleeve rod is fixedly installed inside the positioning shaft, and the first pressure rod is exposed on the outer surface of the positioning shaft.

[0010] Furthermore, the rotating engagement assembly includes a positioning ring, the outer surface of which has a slot, and a fixing claw is fixedly installed at the end of the positioning ring away from the positioning shaft.

[0011] Furthermore, the slot engages with the first pressure rod, the fixing claw engages with the fixing ring, and the positioning shaft and the positioning ring are rotatably connected.

[0012] Furthermore, the sealing assembly includes a sealing ring, an adjusting rod is rotatably connected to the outer surface of the sealing ring, the adjusting rod and the adjusting assembly are connected by threads, and the sealing ring and the adjusting assembly are slidably connected.

[0013] Furthermore, the alarm assembly includes a pressing rod, a second pressure rod is provided in the inner cavity of the positioning shaft, a second spring is provided between the gaps of the second pressure rod, a shielding plate is fixedly installed at both ends of the second pressure rod, a storage rod is provided between the gaps of the shielding plates, the shielding plates and the storage rod are slidably connected, the pressing rod and the second pressure rod are fixedly connected, and when the pressing rod is pressed, the second pressure rod and the shielding plate move closer to each other.

[0014] Furthermore, an alarm is fixedly installed on the inner wall of the steering assembly, a first slider is slidably connected to the inner wall of the steering assembly, a limit block is fixedly installed on the outer surface of the first slider, a third spring is fixedly connected to the inner cavity of the steering assembly, the third spring is located between the steering assembly and the first slider, a button is provided on the side of the limit block near the first slider, a rounded corner surface is provided on the side of the limit block away from the button, the button and the alarm are electrically connected, pressing the button controls the alarm to sound, the shielding plate is rotatably connected to the inner wall of the steering assembly, and there is a slight gap between the shielding plate and the button.

[0015] Furthermore, the steering assembly includes a first steering mechanism, an expansion joint is fixedly connected to one end of the first steering mechanism away from the positioning shaft, and a second steering mechanism is fixedly connected to one end of the expansion joint away from the first steering mechanism.

[0016] Furthermore, the first steering mechanism includes a sleeve, and the alarm, the first slider, the limit block, the third spring, and the button are all located on the inner wall of the sleeve. First fixed arms are fixedly installed on both sides of the sleeve. The outer surface of the first fixed arms is provided with a sliding groove and a rotating groove, which are connected. The outer surface of the first fixed arms is provided with limit holes, two of which are located on both sides of the sliding groove, and the rest are evenly distributed on the outer side of the rotating groove. A receiving groove is provided on the side of the sleeve away from the expansion joint. The receiving groove and the sealing ring are slidably connected. The adjusting rod and the sleeve are connected by threads.

[0017] Furthermore, the second steering mechanism includes a connecting seat, a second fixed arm is fixedly installed at one end of the connecting seat near the first steering mechanism, a second slider is fixedly installed in the inner cavity of the second fixed arm, the second slider is slidably connected to the slide groove, and the second slider is rotatably connected to the rotating groove, a chuck is fixedly installed on the side of the second slider away from the connecting seat, a limit rod is slidably connected to the side of the chuck near the second fixed arm, the limit rod engages with the limit hole, and a fourth spring is provided between the limit rod and the chuck.

[0018] The technical solution provided in this application has at least the following technical effects or advantages:

[0019] 1. Due to the use of a sealing component, this invention effectively solves the problems of traditional metal rotary positioning joints, which are generally made of metal and achieve precise rotary positioning through complex mechanical structure design. However, due to various factors during the manufacturing process, such as material fatigue and wear, the joint performance of metal rotary positioning joints may be unstable, and the internal sealing of metal rotary positioning joints is poor. This invention reduces the entry of dust into the equipment through the sealing component, enables stable rotation, and emits a uniform and rhythmic clicking sound during rotation, reducing wear between equipment caused by dust.

[0020] 2. Due to the adoption of the directional adjustment component, the problem of traditional metal rotary positioning joints being able to rotate only along one axis during operation, without the ability to adjust the direction or length, is effectively solved. This results in a single rotation angle and poor application effect when used with machines. The present invention, through the directional adjustment component, can achieve a certain stretching and angle rotation during the rotation of the positioning joint. The concave groove and convex ring provide an axial preload during joint rotation, which can be better applied to modern machines.

[0021] 3. By employing an alarm component, the maintenance and repair of traditional metal audible rotary positioning joints is effectively addressed. Due to the complexity of their internal structure, maintenance or repair often requires specialized technicians and complex tools. Furthermore, improper force during rotation and uneven force distribution during joint rotation prevent alarm alerts, easily leading to the separation of joint connectors and shortening the lifespan of machines using these metal audible rotary positioning joints. This not only increases operating costs but may also affect the normal operation of the equipment. This invention, through its alarm component, can emit an alarm sound when the positioning joint is inserted or removed unplanned, reminding the user that the slot and the first pressure rod may have deviated from their original track, warning the user to rotate evenly, facilitating disassembly for later maintenance, and saving maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the overall structure in Embodiment 1 of this application;

[0023] Figure 2 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0024] Figure 3 This is a schematic cross-sectional view of the rotary positioning component structure in Embodiment 1 of this application;

[0025] Figure 4 This is a schematic diagram of the rotating engagement assembly structure in Embodiment 1 of this application;

[0026] Figure 5 This is a schematic diagram of the positioning shaft structure in Embodiment 1 of this application;

[0027] Figure 6 This is a schematic cross-sectional view of the positioning shaft structure in Embodiment 1 of this application;

[0028] Figure 7 This is a schematic diagram of the first slider structure in Embodiment 1 of this application;

[0029] Figure 8 This is a schematic diagram of the limiting block structure in Embodiment 1 of this application;

[0030] Figure 9 This is Example 1 of the present application. Figure 8 Enlarged structural diagram at point A;

[0031] Figure 10 This is a schematic diagram of the adjusting rod structure in Embodiment 1 of this application;

[0032] Figure 11 This is a schematic diagram of the orientation component structure in Embodiment 2 of this application;

[0033] Figure 12 This is a schematic diagram of the first adjusting mechanism structure in Embodiment 2 of this application;

[0034] Figure 13 This is a schematic diagram of the second adjusting mechanism in Embodiment 2 of this application.

[0035] In the diagram: 1. Positioning shaft; 2. Rotary positioning assembly; 21. Sleeve rod; 22. Storage cavity; 23. First pressure rod; 24. Connecting ring; 25. First spring; 3. Rotary engaging assembly; 31. Positioning ring; 32. Slot; 33. Fixing claw; 4. Fixing ring; 5. Sealing assembly; 51. Sealing ring; 52. Adjusting rod; 6. Alarm assembly; 61. Pressing rod; 62. Second pressure rod; 63. Second spring; 64. Cover plate; 65. Storage rod; 66. 67. Alarm; 68. First slider; 69. Limit block; 60. Third spring; 610. Button; 71. Adjustment assembly; 72. First adjustment mechanism; 73. Sleeve; 74. First fixed arm; 75. Slide groove; 76. Rotating groove; 77. Limiting hole; 78. Storage groove; 79. Expansion joint; 70. Second adjustment mechanism; 71. Connecting seat; 72. Second fixed arm; 73. Second slider; 74. Chuck; 75. Limit rod. Detailed Implementation

[0036] For metal rotary positioning joints with poor internal sealing, this invention reduces dust entry into the device through a sealing component; for joints where directional and length adjustments are not possible, this invention enables stretching and angular rotation during joint rotation through an directional adjustment component; for joints experiencing uneven force during rotation without warning, this invention uses an alarm component to sound an alarm when the positioning joint is inserted or removed unplanned, alerting the user that the slot and the first pressure rod may have deviated from their original track, and warning the user to rotate evenly.

[0037] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0038] Example 1

[0039] Please see Figure 1 and Figure 3As shown, a metal audible rotary positioning joint includes a positioning shaft 1. A rotary positioning component 2 is fixedly installed in the inner cavity of the positioning shaft 1. Rotary engaging components 3 are sleeved on both sides of the positioning shaft 1. The positioning shaft 1 and the rotary engaging components 3 are rotatably connected. There are two rotary engaging components 3. An adjusting component 7 is fixedly welded to the outer surface of the rotary engaging component 3. A fixing ring 4 is fixedly installed on the inner wall of the adjusting component 7. A sealing component 5 is provided on the side of the adjusting component 7 that is close to each other. An alarm component 6 is fixedly installed in the inner cavity of the positioning shaft 1. Concave grooves are opened at both ends of the positioning shaft 1. A convex ring is provided on the inner wall of the adjusting component 7. The concave grooves and the convex ring are rotatably connected, so that the connecting part has a certain position when rotating. The axial preload is fixed to both ends of the machine equipment connector by the adjusting components 7. For example, when the equipment is used on a robot, one adjusting component 7 is fixed inside the body, and the other adjusting component 7 can be fixed to the inner wall of the robot arm. Rotating the robot arm will drive the adjusting component 7 to rotate. In fact, it is a rotation between the rotary positioning component 2 and the rotary engaging component 3, and a sound is made during the rotation. The rotary positioning component 2 is engaged in the inner cavity of the rotary engaging component 3, which can be quickly disassembled and installed for easy maintenance. The sealing component 5 is used to seal the adjusting components 7, ensuring that the internal structure is not affected by external dust and extending its service life.

[0040] Please see Figure 1 and Figure 2 As shown, the rotary positioning assembly 2 includes a sleeve 21, with a receiving cavity 22 inside the sleeve 21. A first pressure rod 23 is slidably connected to the inner cavity of the receiving cavity 22. A connecting ring 24 is fixedly installed at one end of the first pressure rod 23 near the sleeve 21. A first spring 25 is provided on the inner wall of the sleeve 21, located between the connecting ring 24 and the inner wall of the sleeve 21. There are four rotary positioning assemblies 2. The sleeves 21 are fixedly installed inside the positioning shaft 1, and the first pressure rods 23 are exposed on the outer surface of the positioning shaft 1. During rotation, when the first pressure rod 23 contacts the inner wall of the positioning ring 31, the first pressure rod 23 is squeezed by the positioning ring 31 and squeezes the connecting ring 24. At this time, the connecting ring 24 squeezes the first spring 25, so that the first pressure rod 23 is housed in the inner cavity of the receiving cavity 22. As the positioning shaft 1 rotates, when the first pressure rod 23 is located in the slot 32, the elastic force of the first spring 25 squeezes the connecting ring 24, so that the first pressure rod 23 and the slot 32 are engaged and a rhythmic clicking sound is emitted, indicating the rotation between the connecting parts.

[0041] Please see Figure 3 , Figure 9 and Figure 10As shown, the rotating engagement assembly 3 includes a positioning ring 31 with a slot 32 on its outer surface. A fixing claw 33 is fixedly installed at the end of the positioning ring 31 away from the positioning shaft 1. The slot 32 engages with the first pressure rod 23, and the fixing claw 33 engages with the fixing ring 4, making the positioning ring 31 more fixedly connected to the inner wall of the directional assembly 7 to prevent the slot 32 from shifting. The positioning shaft 1 and the positioning ring 31 are rotatably connected. The sealing assembly 5 includes a sealing ring 51 with an adjusting rod 52 rotatably connected to its outer surface. The adjusting rod 52 and the directional assembly 7 are connected by threads, and the sealing ring 51 and the directional assembly 7 are slidably connected. By rotating the adjusting rod 52, the sealing ring 51 moves in the inner cavity of the storage groove 716, so that the sealing rings 51 in the inner cavities of the two storage grooves 716 come closer to each other and finally fit tightly, preventing dust from entering the interior. At the same time, the sealing ring 51 can be stored in the inner cavity of the storage groove 716, which is convenient for pressing the pressing rod 61 and for disassembling and assembling the entire device.

[0042] Please see Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the alarm component 6 includes a pressing rod 61, a second pressure rod 62 is provided in the inner cavity of the positioning shaft 1, a second spring 63 is provided between the gaps of the second pressure rod 62, a shielding plate 64 is fixedly installed at both ends of the second pressure rod 62, a storage rod 65 is provided between the gaps of the shielding plates 64, the shielding plates 64 and the storage rod 65 are slidably connected, the pressing rod 61 and the second pressure rod 62 are fixedly connected, and when the pressing rod 61 is pressed, the second pressure rod 62 and the shielding plate 64 move closer to each other. An alarm 66 is fixedly installed on the inner wall of the adjusting component 7, a first slider 67 is slidably connected to the inner wall of the adjusting component 7, a limit block 68 is fixedly installed on the outer surface of the first slider 67, and a third spring 69 is fixedly connected to the inner cavity of the adjusting component 7. The third spring 69 is located in the adjusting component. Between component 7 and the first slider 67, a button 610 is provided on the side of the limiting block 68 near the first slider 67, and a rounded corner surface is provided on the side of the limiting block 68 away from the button 610. The button 610 is electrically connected to the alarm 66. Pressing the button 610 controls the alarm 66 to sound an alarm. The shielding plate 64 is rotatably connected to the inner wall of the adjusting assembly 7. There is a slight gap between the shielding plate 64 and the button 610. During rotation, it is essentially a rotation between the rotating positioning assembly 2 and the rotating engaging assembly 3 on the outer surface of the positioning shaft 1. The alarm assembly 6 is used to control the alarm release function and quick disassembly function during rotation. First, by pressing the pressing rod 61, the second pressure rod 62 is brought closer together. At this time, the second spring 63 is compressed, which drives the shielding plate 64 to move closer together. The storage rod 65 is stored inside the cavity of the shielding plate 64. The proximity of the shielding plates 64 ensures that when the shielding plate 64 disengages and contacts the inner wall of the sleeve 711, it will not be blocked by the limiting block 68, thus preventing the alarm sound. At the same time, under the action of external force, the rotating positioning component 2 on the positioning shaft 1 can disengage from the rotating engaging component 3, that is, the slot 32 and the first pressure rod 23 disengage. At this time, the positioning shaft 1 can be completely disassembled from the inside of the adjusting component 7, thereby facilitating disassembly and maintenance. In unplanned disassembly, when rotating between the positioning shaft 1 and the adjusting component 7, sometimes due to uneven force, the axial preload is exceeded during the pulling process, causing pulling during rotation, which prevents the first pressure rod 23 and the slot 32 from rotating. The process of engaging the button does not pose a risk of detachment. Since the pressing lever 61 is not pressed at this time, when it is about to detach under external force, the blocking plate 64 will contact the button 610 on the limiting block 68, and the blocking plate 64 will exert a certain squeezing force on the button 610. Pressing the button 610 triggers the alarm 66, which sounds an alarm, reminding the user that the rotation direction is incorrect. Simultaneously, the limiting block 68 and the button 610 prevent unplanned insertion or removal. During installation, the blocking plate 64 presses against the rounded corner of the limiting block 68. At this time, the limiting block 68 drives the first slider 67 to compress the third spring 69. Once the blocking plate 64 enters between the limiting block 68 and the inner wall of the sleeve 711, the elastic force of the third spring 69 causes the first slider 67 to return to its original position.This allows for quick disassembly while preventing unplanned insertions and removals.

[0043] Example 2

[0044] Please see Figure 11 , Figure 12 and Figure 13 As shown, the adjusting assembly 7 includes a first adjusting mechanism 71. An expansion joint 72 is fixedly connected to one end of the first adjusting mechanism 71 away from the positioning shaft 1. A second adjusting mechanism 73 is fixedly connected to the other end of the expansion joint 72 away from the first adjusting mechanism 71. The first adjusting mechanism 71 includes a sleeve 711. An alarm 66, a first slider 67, a limit block 68, a third spring 69, and a button 610 are all located on the inner wall of the sleeve 711. First fixing arms 712 are fixedly installed on both sides of the sleeve 711. A sliding groove 713 and a rotating groove 714 are formed on the outer surface of the first fixing arm 712. The sliding groove 713 and the rotating groove 714 are connected. The outer surface of the first fixing arm 712 has... Limiting holes 715, two of which are located on both sides of the slide groove 713, and the rest are evenly distributed on the outside of the rotating groove 714. A receiving groove 716 is provided on the side of the sleeve 711 away from the expansion joint 72. The receiving groove 716 and the sealing ring 51 are slidably connected. The adjusting rod 52 and the sleeve 711 are connected by threads. The second adjusting mechanism 73 includes a connecting seat 731. A second fixing arm 732 is fixedly installed at one end of the connecting seat 731 near the first adjusting mechanism 71. A second slider 733 is fixedly installed in the inner cavity of the second fixing arm 732. The second slider 733 is slidably connected to the slide groove 713 and rotatably connected to the rotating groove 714. A chuck 734 is fixedly installed on the side away from the connecting seat 731. A limit rod 735 is slidably connected to the side of the chuck 734 near the second fixed arm 732. The limit rod 735 engages with the limit hole 715. A fourth spring is provided between the limit rod 735 and the chuck 734. When the two adjusting components 7 are fixed to the robot body and arm respectively, the expansion joint 72 can be extended as a whole by pulling the second adjusting mechanism 73. At this time, the second slider 733 slides in the slide groove 713 to the rotating groove 714. That is, the limit rod 735 moves from engaging with the limit holes 715 on both sides of the slide groove 713 to engaging with the limit hole 715 on the outside of the rotating groove 714. Due to the expansion... The expansion joint 72 is telescopic, and its rotation can change the engagement position of the limiting rod 735 and the limiting hole 715 on the outside of the rotating groove 714. That is, the angle between the sleeve 711 and the connecting seat 731 changes. At this time, in conjunction with the audible rotation between the positioning shaft 1 and the rotating engagement assembly 3, an angled rotation between the robot and the arm can be achieved. The extension of the expansion joint 72 helps to extend the connecting parts, such as the extension between the robot and the head. The extension of the robot's neck can be achieved by stretching the position of the connecting seat 731 and the sleeve 711. The rotation of the connecting seat 731 and the sleeve 711 enables the robot's neck to rotate at an angle, enhancing the practicality of the positioning joint.

[0045] In summary, during the rotation of the positioning shaft 1, when the first pressure rod 23 contacts the inner wall of the positioning ring 31, the first pressure rod 23 is compressed by the positioning ring 31, pressing the connecting ring 24. At this time, the connecting ring 24 compresses the first spring 25, causing the first pressure rod 23 to be housed in the inner cavity of the receiving cavity 22. As the positioning shaft 1 rotates, when the first pressure rod 23 is located in the slot 32, the elastic force of the first spring 25 compresses the connecting ring 24, thereby causing the first pressure rod 23 and the slot 32 to engage, producing a rhythmic clicking sound. By rotating the adjusting rod 52, the sealing ring 51 moves within the inner cavity of the receiving groove 716. After the entire assembly is connected, the sealing ring 51... 1. Contact with the outer surface of sleeve 711 to prevent dust from entering the interior. Alarm component 6 is used to control the alarm disengagement function and quick disassembly function during rotation. First, by pressing the pressing rod 61, the storage rod 65 is stored in the inner cavity of the shielding plate 64. When the shielding plates 64 come closer together, they will not be blocked by the limiting block 68 when they disengage and contact the inner wall of sleeve 711, thus preventing the alarm from sounding. At the same time, under the action of external force, the rotation positioning component 2 on the positioning shaft 1 can disengage from the rotation locking component 3. At this time, the positioning shaft 1 can be completely disassembled from the interior of the adjusting component 7, thereby facilitating disassembly and maintenance. In cases of unplanned disassembly, when rotating between the positioning shaft 1 and the adjusting assembly 7, uneven force may sometimes cause the shaft to detach. Since the pressing rod 61 is not pressed at this time, when the shaft is about to detach under external force, the blocking plate 64 will contact the button 610 on the limit block 68, and the blocking plate 64 will exert a certain squeezing force on the button 610. Pressing the button 610 triggers the alarm 66 to sound, reminding the user that the rotation direction is incorrect. When the adjusting assembly 7 and the second adjusting mechanism 73 are respectively fixed to the robot body and arm, the expansion joint 72 can be adjusted by pulling the second adjusting mechanism 73. As the body extends, the second slider 733 slides in the slide groove 713 to the rotation groove 714. That is, the limiting rod 735 moves from engaging with the limiting holes 715 on both sides of the slide groove 713 to engaging with the limiting hole 715 on the outside of the rotation groove 714. Since the expansion joint 72 can extend and retract, the engagement position of the limiting rod 735 and the limiting hole 715 on the outside of the rotation groove 714 can be changed by rotation. That is, the angle between the sleeve 711 and the connecting seat 731 changes. At this time, in conjunction with the audible rotation between the positioning shaft 1 and the rotating engagement assembly 3, the robot and the arm can rotate at an angle, which enhances the movable connection of the positioning joint.

[0046] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0047] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A metal acoustic rotary positioning joint, comprising a positioning shaft (1), characterized in that, A rotary positioning assembly (2) is fixedly installed in the inner cavity of the positioning shaft (1). Rotary engaging assemblies (3) are sleeved on both sides of the positioning shaft (1). The positioning shaft (1) and the rotary engaging assembly (3) are rotatably connected. There are two rotary engaging assemblies (3). An adjusting assembly (7) is fixedly welded to the outer surface of the rotary engaging assembly (3). A fixing ring (4) is fixedly installed on the inner wall of the adjusting assembly (7). A sealing assembly (5) is provided on the side of the adjusting assembly (7) that is close to each other. An alarm assembly (6) is fixedly installed in the inner cavity of the positioning shaft (1). Concave grooves are opened at both ends of the positioning shaft (1). A raised ring is provided on the inner wall of the adjusting assembly (7). The concave grooves and the raised ring are rotatably connected. The rotary positioning assembly (2) includes a sleeve (21), and a storage cavity (22) is provided inside the sleeve (21). A first pressure rod (23) is slidably connected to the inner cavity of the storage cavity (22). A connecting ring (24) is fixedly installed at one end of the first pressure rod (23) near the sleeve (21). A first spring (25) is provided on the inner wall of the sleeve (21). The alarm component (6) includes a pressing rod (61), a second pressure rod (62) is provided in the inner cavity of the positioning shaft (1), a second spring (63) is provided between the gaps of the second pressure rod (62), a shielding plate (64) is fixedly installed at both ends of the second pressure rod (62), a storage rod (65) is provided between the gaps of the shielding plate (64), the shielding plate (64) and the storage rod (65) are slidably connected, the pressing rod (61) and the second pressure rod (62) are fixedly connected, and when the pressing rod (61) is pressed, the second pressure rod (62) and the shielding plate (64) move closer to each other; An alarm (66) is fixedly installed on the inner wall of the directional assembly (7). A first slider (67) is slidably connected to the inner wall of the directional assembly (7). A limit block (68) is fixedly installed on the outer surface of the first slider (67). A third spring (69) is fixedly connected to the inner cavity of the directional assembly (7). The third spring (69) is located between the directional assembly (7) and the first slider (67). A button (610) is provided on the side of the limit block (68) near the first slider (67). A rounded corner surface is provided on the side of the limit block (68) away from the button (610). The button (610) and the alarm (66) are electrically connected. Pressing the button (610) controls the alarm (66) to emit an alarm sound. The shielding plate (64) is rotatably connected to the inner wall of the directional assembly (7). There is a slight gap between the shielding plate (64) and the button (610).

2. The metal acoustic rotary positioning joint as described in claim 1, characterized in that, The first spring (25) is located between the inner wall of the connecting ring (24) and the sleeve (21). There are four rotating positioning components (2). The sleeve (21) is fixedly installed inside the positioning shaft (1), and the first pressure rod (23) is exposed on the outer surface of the positioning shaft (1).

3. The metal acoustic rotary positioning joint as described in claim 1, characterized in that, The rotating engagement assembly (3) includes a positioning ring (31), the outer surface of which is provided with a slot (32), and a fixing claw (33) is fixedly installed at the end of the positioning ring (31) away from the positioning shaft (1).

4. The metal acoustic rotary positioning joint as described in claim 3, characterized in that, The slot (32) engages with the first pressure rod (23), the fixed claw (33) engages with the fixed ring (4), and the positioning shaft (1) and the positioning ring (31) are rotatably connected.

5. The metal acoustic rotary positioning joint as described in claim 1, characterized in that, The sealing assembly (5) includes a sealing ring (51), and an adjusting rod (52) is rotatably connected to the outer surface of the sealing ring (51). The adjusting rod (52) and the adjusting assembly (7) are connected by threads, and the sealing ring (51) and the adjusting assembly (7) are slidably connected.

6. The metal acoustic rotary positioning joint as described in claim 5, characterized in that, The steering assembly (7) includes a first steering mechanism (71), an expansion joint (72) is fixedly connected to one end of the first steering mechanism (71) away from the positioning shaft (1), and a second steering mechanism (73) is fixedly connected to one end of the expansion joint (72) away from the first steering mechanism (71).

7. The metal acoustic rotary positioning joint as described in claim 6, characterized in that, The first adjusting mechanism (71) includes a sleeve (711). The alarm (66), the first slider (67), the limit block (68), the third spring (69), and the button (610) are all located on the inner wall of the sleeve (711). The sleeve (711) is fixedly installed on both sides with a first fixed arm (712). The outer surface of the first fixed arm (712) is provided with a sliding groove (713) and a rotating groove (714). The sliding groove (713) and the rotating groove (714) are connected. The outer surface of the first fixed arm (712) is provided with limit holes (715), two of which are located on both sides of the sliding groove (713), and the rest are evenly distributed on the outside of the rotating groove (714). The sleeve (711) is provided with a storage groove (716) on the side away from the expansion joint (72). The storage groove (716) and the sealing ring (51) are slidably connected. The adjusting rod (52) and the sleeve (711) are connected by threads.

8. The metal acoustic rotary positioning joint as described in claim 7, characterized in that, The second adjusting mechanism (73) includes a connecting seat (731). A second fixed arm (732) is fixedly installed at one end of the connecting seat (731) near the first adjusting mechanism (71). A second slider (733) is fixedly installed in the inner cavity of the second fixed arm (732). The second slider (733) is slidably connected to the slide groove (713) and rotatably connected to the rotating groove (714). A chuck (734) is fixedly installed on the side of the second slider (733) away from the connecting seat (731). A limit rod (735) is slidably connected to the side of the chuck (734) near the second fixed arm (732). The limit rod (735) engages with the limit hole (715). A fourth spring is provided between the limit rod (735) and the chuck (734).

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