A high-performance double-face sealed QBH joint

Abstract

The present invention relates to the field of laser connection technology, specifically a high-performance double-end-face sealed QBH connector, which mainly includes a laser head housing, a connector seat is provided above the laser head housing, a connector cover is provided above the connector seat, a connector is provided inside the laser head housing, and further includes: an abutment mechanism, the abutment mechanism is provided inside the laser head housing, the abutment mechanism includes a fixed block fixedly installed on the inner wall of the laser head housing, and the fixing mechanism includes a clamping plate located below the fixed block. The present invention is in close contact with the optical cable output head through the provided connection groove, and applies elastic force through a pair of limit sleeves of an elastic member, and the limit sleeve drives the circular frame to apply continuous thrust to the pair of connectors, so that the connection groove on the connector is more tightly abutted with the optical cable output head. When the optical cable is shaken by external collision, the optical cable output head and the connection groove are not prone to poor contact or even disconnection, thereby ensuring the normal progress of laser transmission and ensuring that normal use is not affected.

Description

Technical Field

[0001] The present invention relates to the field of laser connection, in particular to a high-performance double-end-face sealed QBH joint. Background Art

[0002] The QBH connector is a fiber optic connector used to connect lasers to fiber output heads (such as laser cutting heads and welding heads). A Chinese utility model patent for the QHB connector has been published, with publication number CN217879725U. It comprises a QBH connector locking nut with a QBH connector core threadedly connected to the nut. A QBH connector positioning latch is rotatably connected to the outer side of the QBH connector core. A pin is slidably connected to the QBH connector core. The QBH connector core has a tapered surface for engagement with the QBH connector and an O-ring groove. By providing a tapered surface for engagement with the QBH connector, modifying the locking mechanism, and increasing the locking contact area, the QBH connector core includes an O-ring groove for mounting a dust ring. This design effectively prevents loose material from the QBH connector caused by shaking, bending, and collision, ensuring the integrity of the collimating lens and QBH lens. The overall structure of the outer sleeve and inner sleeve enhances the stability of the connection. However, when the QBH connector is in use, due to the different lengths of different optical cable output heads, during the insertion process, an optical cable output head that is too short is prone to disconnection with the QBH structure, and an optical cable output head that is too long is prone to damaging the input port of the QBH connector, and it is also easy to cause the adapter to loosen. In addition, when it is shaken by external impact, since the optical cable output head and the input port of the QBH connector are in close contact, a slight impact and shaking can easily cause poor contact or even disconnection at the connection, thereby causing the laser transmission to be interrupted and affecting laser transmission. Summary of the Invention

[0003] The object of the present invention is to provide a high-performance double-end-sealed QBH joint to solve the problems raised by the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A high-performance double-end-face sealed QBH joint, comprising: a laser head housing, a joint seat provided above the laser head housing, a joint cover provided above the joint seat, a joint provided inside the laser head housing, and further comprising:

[0006] The abutment mechanism is arranged inside the laser head housing, and the abutment mechanism includes a fixed block fixedly mounted on the inner wall of the laser head housing, and a round frame is slidably mounted on the side of the fixed block. The abutment mechanism is used for abutting the joint support;

[0007] The fixing mechanism is arranged below the fixing block. The fixing mechanism includes a clamping plate located below the fixing block. A connecting strip is fixedly installed on the outer wall of the clamping plate. A hinge block is fixedly installed on the top surface of one end of the connecting strip. The fixing mechanism is used to fix the joint.

[0008] Preferably, the inner wall of the upper end of the laser head shell is provided with an internal thread, the outer wall of the lower end of the joint seat is provided with an external thread, and the outer wall of the lower end of the joint seat is threadedly connected to the outer wall of the upper end of the laser head shell.

[0009] Preferably, the outer wall of the upper end of the joint seat is provided with external thread 2, the inner wall of the lower end of the joint cover is provided with internal thread 2, the inner wall of the lower end of the joint cover is threadedly connected to the outer wall of the upper end of the joint seat, and the inner wall of the upper end of the joint cover is provided with internal thread 3.

[0010] Preferably, a through hole is formed through the inner wall of the joint cover, and a connecting groove is formed at the upper end of the joint.

[0011] Preferably, a quartz head is fixedly embedded at the lower end of the joint, and the upper end of the joint is located inside the through hole. A groove is provided on the outer wall of the laser head housing, and a rubber color ring is fixedly installed on the inner wall of the groove.

[0012] Preferably, two fixed blocks are provided, and vertical grooves are provided on the sides of the two fixed blocks close to each other. Limit rods are fixedly installed on the inner walls of the two vertical grooves, and limit sleeves are slidably installed on the outer walls of the two limit rods. The outer walls of the two limit sleeves are slidably connected to the inner walls of the two vertical grooves.

[0013] Preferably, elastic parts 1 are slidably installed on the outer walls of the two limit rods respectively, and the two ends of the two elastic parts 1 are fixedly connected to the inner walls of the lower ends of the two vertical grooves and the bottom surfaces of the two limit sleeves respectively. The two limit sleeves are fixedly connected to the side surfaces of the circular frame 1 close to each other, and the top surface of the circular frame 1 abuts against the bottom surface of the joint.

[0014] Preferably, the inner walls of the two vertical grooves are respectively provided with a slide groove, the inner walls of the two slide grooves are respectively fixedly installed with two slide rods, the inner walls of the two slide grooves are respectively slidably installed with a slide sleeve, and the inner walls of the two slide sleeves are respectively slidably connected to the outer walls of the multiple slide rods.

[0015] Preferably, a circular frame 2 is fixedly installed on the side surfaces of the two sliding sleeves respectively, the top surfaces of the two circular frames 2 are movably connected to the bottom surfaces of the two limit sleeves respectively, the two circular frames 2 are respectively sleeved to the outside of the two limit rods, and the outer walls of the multiple sliding rods are slidably installed with elastic parts 2, and the two ends of the multiple elastic parts 2 are fixedly connected to the bottom surfaces of the two sliding sleeves and the inner walls of the lower ends of the two sliding grooves respectively.

[0016] Preferably, support bars are fixedly installed on the bottom surfaces of the two sliding sleeves, and the lower ends of the two support bars slide through the inner walls of the lower ends of the two sliding grooves and extend to the bottom of the fixed block. The lower ends of the two support bars are hinged with hinge rods, and two connecting bars, clamping plates and hinge blocks are each provided. Two fixed plates are fixedly installed on the inner wall of the laser head housing, and movable grooves are respectively provided on the sides of the two fixed plates. Adjustment grooves are respectively provided on the inner walls of the upper ends of the two movable grooves. The outer walls of the two connecting bars are slidably connected to the inner walls of the two movable grooves, and the outer walls of the two hinge blocks are slidably connected to the inner walls of the two adjustment grooves, and the inner walls of the two hinge blocks are hinged to the other ends of the two hinge rods.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a connection groove that is in close contact with the optical cable output head. A pair of limit sleeves are used by the elastic member to apply elastic force. The limit sleeves drive the round frame to apply continuous thrust to the connector. The connection groove on the connector is in closer contact with the optical cable output head, and the length of the optical cable output head can be flexibly adapted for docking. When the optical cable is shaken by external impact, the optical cable output head and the connection groove are unlikely to have poor contact or even disconnection, thereby ensuring normal laser transmission and not affecting normal use.

[0019] The circular frame is moved downward to push the circular frame 2 and the sliding sleeve to move, the sliding sleeve drives the support bar to move, the support bar drives the hinge rod and the hinge block to move, the hinge block drives the connecting bar and the clamping plate to move, and the clamping plate further limits and fixes the joint so that the joint is not easy to shake, thereby improving stability;

[0020] The provided connector seat and connector cover make it easy to remove the connector seat and connector cover from the laser head housing, thereby facilitating the installation and replacement of the internal connectors, thereby improving the flexibility of the device. The provided quartz head makes the device safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is an exploded view of the three-dimensional structure of the present invention;

[0023] Figure 3 This is a cross-sectional view of the three-dimensional structure of the laser head housing of the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing block of the present invention;

[0025] Figure 5 It is a cross-sectional schematic diagram of the three-dimensional structure of the fixing block of the present invention;

[0026] Figure 6This is a schematic diagram of the three-dimensional structure of the circular frame of the present invention;

[0027] Figure 7 For the present invention Figure 5 Enlarged view of point A in the middle;

[0028] Figure 8 It is a schematic cross-sectional view of the three-dimensional structure of the fixing plate of the present invention.

[0029] In the picture:

[0030] 1. Laser head housing; 101. Quartz head; 102. Connector base; 103. External thread 1; 104. Internal thread 1; 105. External thread 2; 106. Connector cover; 107. Internal thread 2; 108. Internal thread 3; 109. Through hole; 110. Slot body; 111. Rubber color ring; 112. Connector; 113. Connecting slot;

[0031] 2. Abutment mechanism; 201. Fixed block; 202. Vertical slot; 203. Limit rod; 204. Limit sleeve; 205. Elastic member 1; 206. Round frame 1;

[0032] 3. Fixing mechanism; 301. Slide groove; 302. Slide rod; 303. Slide sleeve; 304. Elastic member 2; 305. Round frame 2; 306. Support bar; 307. Articulated rod; 308. Fixed plate; 309. Moving groove; 310. Connecting bar; 311. Clamping plate; 312. Articulated block. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0035] like Figures 1-8 As shown, the present application provides a high-performance double-end-face sealed QBH joint, comprising: a laser head housing 1, a joint seat 102 is provided above the laser head housing 1, a joint cover 106 is provided above the joint seat 102, a joint 112 is provided inside the laser head housing 1, and further comprising:

[0036] Specifically, such as Figure 1-Figure 3As shown, the inner wall of the upper end of the laser head housing 1 is provided with an internal thread 104, the outer wall of the lower end of the connector seat 102 is provided with an external thread 103, and the outer wall of the lower end of the connector seat 102 is threadedly connected to the outer wall of the upper end of the laser head housing 1.

[0037] In this embodiment, the internal thread 104 and the external thread 103 are provided to facilitate connection and disassembly of the connector base 102 and the laser head housing 1 .

[0038] Specifically, such as Figure 1-Figure 3 As shown, the outer wall of the upper end of the joint seat 102 is provided with an external thread 2 105, the inner wall of the lower end of the joint cover 106 is provided with an internal thread 2 107, the inner wall of the lower end of the joint cover 106 is threadedly connected to the outer wall of the upper end of the joint seat 102, and the inner wall of the upper end of the joint cover 106 is provided with an internal thread 3 108.

[0039] In this embodiment, the second external thread 105 and the second internal thread 107 are provided to facilitate installation and removal of the joint cover 106 and the joint base 102 .

[0040] Specifically, such as Figure 1-Figure 3 As shown, a through hole 109 is formed through the inner wall of the joint cover 106 , and a connecting groove 113 is formed at the upper end of the joint 112 .

[0041] In this embodiment, through the connection groove 113 , one end of the optical cable contacts the inner wall of the connection groove 113 , so that the optical cable and the connector 112 are connected more tightly.

[0042] Specifically, such as Figure 1-Figure 3 As shown, the quartz head 101 is fixedly embedded at the lower end of the joint 112, and the upper end of the joint 112 is located inside the through hole 109. A groove 110 is opened on the outer wall of the laser head housing 1, and a rubber color ring 111 is fixedly installed on the inner wall of the groove 110.

[0043] In this embodiment, a quartz head 101 is provided for laser beam expansion and transmission. When high-power laser light is transmitted through an optical fiber, the spot size is small and the power density is extremely high. Direct output can damage the processing head or the workpiece. The quartz head 101 gradually expands the spot size within the head, increasing the spot diameter and reducing the power density, ensuring safe transmission of the laser light to the processing head.

[0044] The abutment mechanism 2 is arranged inside the laser head housing 1. The abutment mechanism 2 includes a fixed block 201 fixedly mounted on the inner wall of the laser head housing 1. A circular frame 206 is slidably mounted on the side of the fixed block 201. The abutment mechanism 2 is used to support and abut the joint 112;

[0045] Specifically, such as Figure 1-Figure 5As shown, two fixed blocks 201 are provided, and vertical grooves 202 are opened on the sides of the two fixed blocks 201 close to each other. The inner walls of the two vertical grooves 202 are fixedly installed with limiting rods 203, and the outer walls of the two limiting rods 203 are slidably installed with limiting sleeves 204. The outer walls of the two limiting sleeves 204 are slidably connected to the inner walls of the two vertical grooves 202.

[0046] In this embodiment, the limiting sleeve 204 is limited by the limiting rod 203 , so that the limiting sleeve 204 moves more stably.

[0047] Specifically, such as Figure 1-Figure 5 As shown, elastic parts 205 are slidably installed on the outer walls of the two limit rods 203, and the two ends of the two elastic parts 205 are fixedly connected to the inner walls of the lower ends of the two vertical grooves 202 and the bottom surfaces of the two limit sleeves 204. The two limit sleeves 204 are fixedly connected to the side surfaces of the circular frame 206 close to each other, and the top surface of the circular frame 206 is in contact with the bottom surface of the joint 112.

[0048] In this embodiment, the elastic member 205 applies elastic force to the limiting sleeve 204, and the limiting sleeve 204 drives the circular frame 206 to apply thrust to the connector 112, so that the connection groove 113 at the connector 112 is more tightly connected to the optical cable output head and is not easy to loosen.

[0049] The fixing mechanism 3 is arranged below the fixing block 201. The fixing mechanism 3 includes a clamping plate 311 located below the fixing block 201. A connecting strip 310 is fixedly installed on the outer wall of the clamping plate 311. A hinge block 312 is fixedly installed on the top surface of one end of the connecting strip 310. The fixing mechanism 3 is used to fix the joint 112.

[0050] Specifically, such as Figures 1-8 As shown, the inner walls of the two vertical slots 202 are respectively provided with a sliding groove 301, the inner walls of the two sliding grooves 301 are respectively fixedly installed with two sliding rods 302, the inner walls of the two sliding grooves 301 are respectively slidably installed with sliding sleeves 303, and the inner walls of the two sliding sleeves 303 are respectively slidably connected to the outer walls of multiple sliding rods 302.

[0051] In this embodiment, the sliding sleeve 303 is limited by the provided sliding rod 302, so that the movement of the sliding sleeve 303 is more stable.

[0052] Specifically, such as Figures 1-8 As shown, the two sliding sleeves 303 are respectively fixedly installed with round frames 305 on their sides, the top surfaces of the two round frames 305 are respectively movably connected to the bottom surfaces of the two limit sleeves 204, the two round frames 305 are respectively sleeved to the outside of the two limit rods 203, and the outer walls of multiple sliding rods 302 are respectively slidably installed with elastic parts 304, and the two ends of the multiple elastic parts 304 are respectively fixedly connected to the bottom surfaces of the two sliding sleeves 303 and the inner walls of the lower ends of the two sliding grooves 301.

[0053] In this embodiment, the second elastic member 304 applies elastic force to the sliding sleeve 303 , and the sliding sleeve 303 applies thrust to the second circular frame 305 .

[0054] Specifically, such as Figures 1-8 As shown, the bottom surfaces of the two sliding sleeves 303 are respectively fixedly installed with support bars 306, and the lower ends of the two support bars 306 slide through the inner walls of the lower ends of the two sliding grooves 301 and extend to the bottom of the fixed block 201, and the lower ends of the two support bars 306 are respectively hinged with hinge rods 307, and two connecting bars 310, clamping plates 311 and hinge blocks 312 are each provided with two, and two fixed plates 308 are fixedly installed on the inner wall of the laser head housing 1, and movable grooves 309 are respectively provided on the sides of the two fixed plates 308, and adjustment grooves are respectively provided on the inner walls of the upper ends of the two movable grooves 309, and the outer walls of the two connecting bars 310 are respectively slidably connected to the inner walls of the two movable grooves 309, and the outer walls of the two hinge blocks 312 are respectively slidably connected to the inner walls of the two adjustment grooves, and the inner walls of the two hinge blocks 312 are respectively hinged to the other ends of the two hinge rods 307.

[0055] In this embodiment: the circular frame 1 206 is moved downward to push the circular frame 2 305, driving the sliding sleeve 303 and the support bar 306 to move downward, and the support bar 306 drives the hinge rod 307 and the hinge block 312 to move, thereby driving the connecting bar 310 and the clamping plate 311 to move to clamp and limit the joint 112, making the joint 112 more stable.

[0056] The specific solution is as follows: the optical cable output head is brought into contact with the connecting groove 113, and the screw tube on the optical cable output head is connected to the internal thread 3 108, the optical cable output head pushes the connector 112 to move, the elastic member 1 205 applies elastic force to the limiting sleeve 204, and the limiting sleeve 204 drives the round frame 1 206 to apply continuous thrust to the connector 112, and the connecting groove 113 on the connector 112 is more closely abutted against the optical cable output head, which can adapt to optical cable output heads of different lengths for docking. When the optical cable is shaken by external collision, due to the action of the elastic member 1 205, the optical cable output head and the connector 112 maintain a relatively close docking, and the optical cable output head and the connecting groove 113 are not prone to poor contact or even disconnection. The situation is thus ensured, thereby ensuring the normal progress of laser transmission and ensuring that normal use is not affected. The circular frame 1 206 moves downward to push the circular frame 2 305 and the sliding sleeve 303 to move, and the sliding sleeve 303 drives the support bar 306 to move. The support bar 306 drives the hinge rod 307 and the hinge block 312 to move, and the hinge block 312 drives the connecting bar 310 and the clamping plate 311 to move. The clamping plate 311 further limits and fixes the joint 112, making it less likely for the joint 112 to shake, thereby improving stability. The provided joint seat 102 and joint cover 106 facilitate the removal of the joint seat 102 and the joint cover 106 from the joint cover 106, thereby facilitating the installation and replacement of the internal joint 112, thereby improving the flexibility of the device.

[0057] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative; within the scope of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0058] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-performance double-face sealed QBH joint, comprising: A laser head housing (1), wherein a connector seat (102) is provided above the laser head housing (1), a connector cover (106) is provided above the connector seat (102), and a connector (112) is provided inside the laser head housing (1), characterized in that it further comprises: An abutment mechanism (2) is provided inside the laser head housing (1), and the abutment mechanism (2) comprises a fixed block (201) fixedly mounted on the inner wall of the laser head housing (1), a round frame (206) being slidably mounted on the side of the fixed block (201), two fixed blocks (201) are provided, and vertical grooves (202) are provided on the sides of the two fixed blocks (201) close to each other, and limiting rods (203) are fixedly mounted on the inner walls of the two vertical grooves (202), and limiting sleeves (204) are slidably mounted on the outer walls of the two limiting rods (203). The outer walls of the two limiting sleeves (204) are respectively slidably connected to the inner walls of the two vertical slots (202); the outer walls of the two limiting rods (203) are respectively slidably mounted with elastic members (205); the two ends of the two elastic members (205) are respectively fixedly connected to the inner walls of the lower ends of the two vertical slots (202) and the bottom surfaces of the two limiting sleeves (204); the two limiting sleeves (204) are respectively fixedly connected to the side surfaces of the circular frame (206) when the two sides are close to each other; the top surface of the circular frame (206) abuts against the bottom surface of the joint (112); and the abutting mechanism (2) is used for supporting and abutting the joint (112); A fixing mechanism (3) is provided below the fixing block (201), and the fixing mechanism (3) includes a clamping plate (311) located below the fixing block (201), a connecting strip (310) is fixedly installed on the outer wall of the clamping plate (311), a hinge block (312) is fixedly installed on the top surface of one end of the connecting strip (310), a sliding groove (301) is respectively provided on the inner walls of the two vertical grooves (202), two sliding rods (302) are respectively fixedly installed on the inner walls of the two sliding grooves (301), a sliding sleeve (303) is respectively slidably installed on the inner walls of the two sliding grooves (301), and the inner walls of the two sliding sleeves (303) are respectively slidably connected to the outer walls of the plurality of sliding rods (302), and the fixing mechanism (3) is used to fix the joint.

2. A high performance double-face sealed QBH joint according to claim 1, characterized in that: The inner wall of the upper end of the laser head housing (1) is provided with an internal thread (104), the outer wall of the lower end of the connector seat (102) is provided with an external thread (103), and the outer wall of the lower end of the connector seat (102) is threadedly connected to the outer wall of the upper end of the laser head housing (1).

3. A high performance double-face sealed QBH joint according to claim 1, characterized in that: The outer wall of the upper end of the joint seat (102) is provided with a second external thread (105), the inner wall of the lower end of the joint cover (106) is provided with a second internal thread (107), the inner wall of the lower end of the joint cover (106) is threadedly connected to the outer wall of the upper end of the joint seat (102), and the inner wall of the upper end of the joint cover (106) is provided with a third internal thread (108).

4. A high performance double-face sealed QBH joint according to claim 1, characterized in that: A through hole (109) is provided through the inner wall of the joint cover (106), and a connecting groove (113) is provided at the upper end of the joint (112).

5. A high performance double-face sealed QBH joint according to claim 1, characterized in that: A quartz head (101) is fixedly embedded in the lower end of the joint (112), and the upper end of the joint (112) is located inside the through hole (109). A groove (110) is provided on the outer wall of the laser head housing (1), and a rubber color ring (111) is fixedly installed on the inner wall of the groove (110).

6. A high performance double-face sealed QBH joint according to claim 1, characterized in that: The sides of the two sliding sleeves (303) are respectively fixedly mounted with a second circular frame (305), the top surfaces of the two second circular frames (305) are respectively movably connected to the bottom surfaces of the two limit sleeves (204), the two second circular frames (305) are respectively sleeved onto the outside of the two limit rods (203), the outer walls of the plurality of sliding rods (302) are respectively slidably mounted with a second elastic member (304), and the two ends of the plurality of second elastic members (304) are respectively fixedly connected to the bottom surfaces of the two sliding sleeves (303) and the inner walls of the lower ends of the two sliding grooves (301).

7. A high performance double-face sealed QBH joint according to claim 6, characterized in that: The bottom surfaces of the two sliding sleeves (303) are respectively fixedly mounted with support bars (306), the lower ends of the two support bars (306) respectively slide through the inner walls of the lower ends of the two slide grooves (301) and extend to the bottom of the fixed block (201), the lower ends of the two support bars (306) are respectively hinged with hinge rods (307), the connecting bars (310), the clamping plates (311) and the hinge blocks (312) are each provided with two, and the inner wall of the laser head housing (1) is fixedly mounted with two fixed bars (306). The fixed plate (308) is provided with a movable groove (309) on the side of each of the two fixed plates (308), and an adjustment groove is provided on the inner wall of the upper end of each of the two movable grooves (309). The outer walls of the two connecting strips (310) are respectively slidably connected to the inner walls of the two movable grooves (309), and the outer walls of the two hinge blocks (312) are respectively slidably connected to the inner walls of the two adjustment grooves. The inner walls of the two hinge blocks (312) are respectively hinged to the other ends of the two hinge rods (307).

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