High-performance double-end-face sealing QBH connector

Abstract

The invention relates to the technical field of laser connection, in particular to a high-performance double-end-face sealing QBH connector which mainly comprises a laser head shell, a connector base arranged above the laser head shell, a connector cover arranged above the connector base, a connector arranged in the laser head shell and an abutting mechanism arranged in the laser head shell. The abutting mechanism comprises a fixing block fixedly installed on the inner wall of the laser head shell, and the fixing mechanism comprises a clamping plate located below the fixing block. The connecting groove is in close contact with the optical cable output head, elastic force is applied to the limiting sleeve through the first elastic piece, the limiting sleeve drives the first round frame to apply continuous thrust to the connector, and the connecting groove in the connector abuts against the optical cable output head more tightly; the optical cable output head and the connecting groove are not prone to poor contact or even disconnection, so that normal operation of laser transmission is guaranteed, and normal use is not affected.

Description

Technical Field

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

[0002] The QBH connector is a fiber optic connector used to connect a laser and a fiber optic output head (such as a laser cutting head, a welding head, etc.). The Chinese utility model patent QBH connector has been publicly disclosed, with the publication number CN217879725U. It includes a QBH connector locking nut, inside which a QBH connector inner core is connected by a thread. A QBH connector positioning lock is rotatably connected to the outside of the QBH connector inner core. A pin is slidably connected inside the QBH connector inner core. A conical surface combined with QBH is provided inside the QBH connector inner core, and an O-ring groove is opened inside the QBH connector inner core. By setting the conical surface combined with QBH, changing the locking device, increasing the locking contact area, and adding a dust-proof ring to the O-ring groove, the present invention effectively avoids the residual materials caused by the loosening of the QBH connector locking due to shaking, bending, collision, etc., and ensures the integrity of the collimating lens and the QBH lens. Its overall structure of the outer sleeve and the inner core is adopted to improve the connection stability. However, when the QBH connector is in use, due to the different lengths of different optical cable output heads, during the insertion process, the connection between the too short optical cable output head and the QBH structure is prone to disconnection problems, and the too long optical cable output head is likely to damage the input port of the QBH connector and is also prone to the problem of loose rotation of the adapter; in addition, when it is shaken due to external collision, since the optical cable output head and the input port of the QBH connector are in close contact, when it is slightly shaken by the impact, it is easy to cause poor contact or even disconnection at the connection, resulting in the problem of laser transmission interruption and affecting laser transmission. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-performance double-end face sealed QBH connector to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A high-performance double-end face sealed QBH connector, including: a laser head housing, a connector seat is arranged above the laser head housing, a connector cover is arranged above the connector seat, and a connector is arranged inside the laser head housing. It further includes: An abutting mechanism, which is arranged inside the laser head housing. The abutting mechanism includes a fixed block fixedly installed on the inner wall of the laser head housing, and a circular frame one is slidably installed on the side of the fixed block. The abutting mechanism is used to support and abut the connector; A fixing mechanism, which is arranged below the fixed block. The fixing mechanism includes a clamping plate located below the fixed block. A connecting strip is fixedly installed on the outer wall of the clamping plate, and 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 connector.

[0005] Preferably, an internal thread one is provided on the inner wall of the upper end of the laser head housing, and an external thread one is provided on the outer wall of the lower end of the connector base. The outer wall of the lower end of the connector base is threadedly connected to the outer wall of the upper end of the laser head housing.

[0006] Preferably, an external thread two is provided on the outer wall of the upper end of the connector base, and an internal thread two is provided on the inner wall of the lower end of the connector cover. The inner wall of the lower end of the connector cover is threadedly connected to the outer wall of the upper end of the connector base, and an internal thread three is provided on the inner wall of the upper end of the connector cover.

[0007] Preferably, a through hole is formed through the inner wall of the connector cover, and a connection groove is formed at the upper end of the connector.

[0008] Preferably, a quartz head is fixedly embedded at the lower end of the connector. The upper end of the connector is located inside the through hole. A groove is formed on the outer wall of the laser head housing, and a rubber color ring is fixedly installed on the inner wall of the groove.

[0009] Preferably, there are two fixing blocks. Vertical grooves are formed on the side surfaces of the two fixing blocks close to each other. Limiting rods are respectively fixedly installed on the inner walls of the two vertical grooves. Limiting sleeves are respectively slidably installed on the outer walls of the two limiting rods. The outer walls of the two limiting sleeves are respectively slidably connected to the inner walls of the two vertical grooves.

[0010] Preferably, elastic members one are respectively slidably installed on the outer walls of the two limiting rods. The two ends of the two elastic members one are respectively fixedly connected to the inner walls of the lower ends of the two vertical grooves and the bottom surfaces of the two limiting sleeves. The side surfaces of the two limiting sleeves close to each other are respectively fixedly connected to one side surface of a circular frame. The top surface of the circular frame abuts against the bottom surface of the connector.

[0011] Preferably, sliding grooves are respectively formed on the inner walls of the two vertical grooves. Two sliding rods are respectively fixedly installed on the inner walls of the two sliding grooves. Sliding sleeves are respectively slidably installed on the inner walls of the two sliding grooves. The inner walls of the two sliding sleeves are respectively slidably connected to the outer walls of the multiple sliding rods.

[0012] Preferably, circular frames two are respectively fixedly installed on the side surfaces of the two sliding sleeves. The top surfaces of the two circular frames two are respectively movably connected to the bottom surfaces of the two limiting sleeves. The two circular frames two are respectively sleeved outside the two limiting rods. Elastic members two are respectively slidably installed on the outer walls of the multiple sliding rods. The two ends of the multiple elastic members two are respectively fixedly connected to the bottom surfaces of the two sliding sleeves and the inner walls of the lower ends of the two sliding grooves.

[0013] Preferably, support bars are fixedly installed on the bottom surfaces of the two sliding sleeves respectively. The lower ends of the two support bars slide through the inner walls of the lower ends of the two sliding grooves respectively and extend below the fixed block. The lower ends of the two support bars are respectively hinged with hinge rods. There are two connecting bars, clamping plates and hinge blocks. Two fixing plates are fixedly installed on the inner wall of the laser head housing. Moving grooves are respectively formed on the side surfaces of the two fixing plates. Adjusting grooves are respectively formed through the inner walls of the upper ends of the two moving grooves. The outer walls of the two connecting bars are respectively slidably connected with the inner walls of the two moving grooves. The outer walls of the two hinge blocks are respectively slidably connected with the inner walls of the two adjusting grooves. The inner walls of the two hinge blocks are respectively hinged with the other ends of the two hinge rods.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the connecting groove provided is in close contact with the optical cable output head. The elastic member applies an elastic force to the limiting sleeve. The limiting sleeve drives the circular frame to apply a continuous thrust to the pair of connectors. The connecting groove on the connector is in closer contact with the optical cable output head. It can flexibly adapt to the length of the optical cable output head for docking. When the optical cable shakes due to external collision, it is not easy for the optical cable output head and the connecting groove to have poor contact or even disconnection, thus ensuring the normal progress of laser transmission and not affecting normal use. By setting the downward movement of the circular frame one to push the circular frame two 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, and the hinge block drives the connecting bar and the clamping plate to move. The clamping plate further limits and fixes the connector, making the connector not easy to shake and improving stability. By providing the connector seat and the connector cover, it is convenient to remove the connector seat and the connector cover from the laser head housing, thus facilitating the installation and replacement of the internal connector, improving the flexibility of the device. The provided quartz head makes the device safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural diagram of the present invention; Figure 2 is an exploded three-dimensional structure diagram of the present invention; Figure 3 is a three-dimensional structural sectional view of the laser head housing of the present invention; Figure 4 is a three-dimensional structural diagram of the fixed block of the present invention; Figure 5 is a three-dimensional structural sectional view of the fixed block of the present invention; Figure 6 is a three-dimensional structural diagram of the circular frame two of the present invention; Figure 7 For the present invention Figure 5 enlarged view at A in; Figure 8 is a three-dimensional structural sectional view of the fixing plate of the present invention.

[0016] In the figure: 1. Laser head housing; 101. Quartz head; 102. Connector base; 103. First external thread; 104. First internal thread; 105. Second external thread; 106. Connector cover; 107. Second internal thread; 108. Third internal thread; 109. Through hole; 110. Groove body; 111. Rubber color ring; 112. Connector; 113. Connection groove; 2. Abutting mechanism; 201. Fixed block; 202. Vertical groove; 203. Limiting rod; 204. Limiting sleeve; 205. First elastic member; 206. First circular frame; 3. Fixing mechanism; 301. Sliding groove; 302. Sliding rod; 303. Sliding sleeve; 304. Second elastic member; 305. Second circular frame; 306. Support bar; 307. Hinge rod; 308. Fixed plate; 309. Moving groove; 310. Connection bar; 311. Clamping plate; 312. Hinge block. Detailed implementation manners

[0017] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0018] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0019] As Figures 1-8 shown, the present application provides a high-performance double-end face sealed QBH connector, including: a laser head housing 1, a connector base 102 is arranged above the laser head housing 1, a connector cover 106 is arranged above the connector base 102, and a connector 112 is arranged inside the laser head housing 1. It further includes: Specifically, as Figures 1-3 shown, a first internal thread 104 is arranged on the inner wall of the upper end of the laser head housing 1, a first external thread 103 is arranged on the outer wall of the lower end of the connector base 102, and the outer wall of the lower end of the connector base 102 is threadedly connected to the outer wall of the upper end of the laser head housing 1.

[0020] In this embodiment: By providing the first internal thread 104 and the first external thread 103, it is convenient to connect and disassemble the connector base 102 and the laser head housing 1.

[0021] Specifically, as Figures 1-3As shown, the upper outer wall of the joint seat 102 is provided with an external thread 105, the lower inner wall of the joint cover 106 is provided with an internal thread 107, the lower inner wall of the joint cover 106 is threadedly connected with the upper outer wall of the joint seat 102, and the upper inner wall of the joint cover 106 is provided with an internal thread 108.

[0022] 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 seat 102 .

[0023] Specifically, Figures 1-3 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 .

[0024] 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.

[0025] Specifically, Figures 1-3 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.

[0026] In this embodiment, the quartz head 101 is used for beam expansion and transmission of the laser beam. When high-power laser is transmitted in the optical fiber, the spot size is small and the power density is extremely high. Direct output may cause damage to the processing head or workpiece. The quartz head 101 gradually diffuses the spot inside, expands the spot diameter, reduces the power density, and ensures that the laser is safely transmitted to the processing head.

[0027] 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 round frame 206 is slidably mounted on the side of the fixed block 201. The abutment mechanism 2 is used for supporting and abutting the joint 112. Specifically, Figures 1-5 As shown, two fixed blocks 201 are provided, and vertical grooves 202 are opened on the sides close to each other. Limit rods 203 are fixedly installed on the inner walls of the two vertical grooves 202, and limit sleeves 204 are slidably installed on the outer walls of the two limit rods 203. The outer walls of the two limit sleeves 204 are slidably connected to the inner walls of the two vertical grooves 202.

[0028] In this embodiment, the limiting sleeve 204 is limited by the limiting rod 203 , so that the movement of the limiting sleeve 204 is more stable.

[0029] Specifically, Figures 1-5As shown, elastic members 205 are slidably mounted on the outer walls of the two limiting rods 203. The two ends of the two elastic members 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 limiting sleeves 204 respectively. The side surfaces of the two limiting sleeves 204 close to each other are fixedly connected to the side surface of the first circular frame 206. The top surface of the first circular frame 206 abuts against the bottom surface of the connector 112.

[0030] In this embodiment: By providing the elastic member 205 to apply an elastic force to the limiting sleeve 204, the limiting sleeve 204 drives the first circular frame 206 to apply a thrust force to the connector 112, making the connection groove 113 at the connector 112 more tightly connected to the optical cable output head and not easily loosening.

[0031] Fixing mechanism 3 is provided 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 mounted on the outer wall of the clamping plate 311. A hinge block 312 is fixedly mounted on the top surface of one end of the connecting strip 310. The fixing mechanism 3 is used to fix the connector 112.

[0032] Specifically, as Figures 1-8 shown, sliding grooves 301 are respectively formed in the inner walls of the two vertical grooves 202. Two sliding rods 302 are fixedly mounted on the inner walls of the two sliding grooves 301 respectively. Two sliding sleeves 303 are slidably mounted on the inner walls of the two sliding grooves 301 respectively. The inner walls of the two sliding sleeves 303 are respectively slidably connected to the outer walls of the plurality of sliding rods 302.

[0033] In this embodiment: By providing the sliding rods 302 to limit the sliding sleeves 303, the movement of the sliding sleeves 303 is made more stable.

[0034] Specifically, as Figures 1-8 shown, second circular frames 305 are respectively fixedly mounted on the side surfaces of the two sliding sleeves 303. The top surfaces of the two second circular frames 305 are respectively movably connected to the bottom surfaces of the two limiting sleeves 204. The two second circular frames 305 are respectively sleeved outside the two limiting rods 203. Elastic members 304 are slidably mounted on the outer walls of the plurality of sliding rods 302. The two ends of the plurality of elastic members 304 are 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 respectively.

[0035] In this embodiment: By providing the elastic members 304 to apply an elastic force to the sliding sleeves 303, the sliding sleeves 303 apply a thrust force to the second circular frames 305.

[0036] Specifically, as Figures 1-8As shown in the figure, support bars 306 are fixedly installed at the bottom surfaces of two sliding sleeves 303 respectively. The lower ends of the two support bars 306 respectively slide through the inner walls of the lower ends of the two sliding grooves 301 and extend below the fixed block 201. The lower ends of the two support bars 306 are respectively hinged with hinge rods 307. There are two connecting bars 310, two clamping plates 311 and two hinge blocks 312. Two fixing plates 308 are fixedly installed on the inner wall of the laser head housing 1. Moving grooves 309 are respectively formed on the side surfaces of the two fixing plates 308. Adjusting grooves are respectively formed through the inner walls of the upper ends of the two moving grooves 309. The outer walls of the two connecting bars 310 are respectively slidably connected with the inner walls of the two moving grooves 309. The outer walls of the two hinge blocks 312 are respectively slidably connected with the inner walls of the two adjusting grooves. The inner walls of the two hinge blocks 312 are respectively hinged with the other ends of the two hinge rods 307.

[0037] In this embodiment: By setting the circular frame one 206 to move downward to push the circular frame two 305, driving the sliding sleeve 303 and the support bar 306 to move downward, 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.

[0038] The specific solution of this scheme is as follows: The optical cable output head is in contact with the connecting groove 113, and the screw tube on the optical cable output head is connected with the internal thread three 108. The optical cable output head pushes the joint 112 to move. The elastic member one 205 applies an elastic force to the limiting sleeve 204. The limiting sleeve 204 drives the circular frame one 206 to apply a continuous thrust to the joint 112. The connecting groove 113 on the joint 112 abuts more closely against the optical cable output head, and it can adapt to optical cable output heads of different lengths for docking. When the optical cable shakes due to external collision, due to the action of the elastic member one 205, the optical cable output head and the joint 112 maintain a relatively tight docking, and it is not easy for the optical cable output head and the connecting groove 113 to have poor contact or even disconnection, thus ensuring the normal progress of laser transmission and not affecting normal use. When the circular frame one 206 moves downward to push the circular frame two 305 and the sliding sleeve 303 to move, 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 the joint 112 not easy to shake and improving stability. The provided joint seat 102 and joint cover 106 facilitate removing 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, and thus improving the flexibility of the device.

[0039] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0040] 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 principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high performance double end seal QBH joint, comprising: A laser head housing (1), wherein a joint seat (102) is arranged above the laser head housing (1), a joint cover (106) is arranged above the joint seat (102), and a joint (112) is arranged inside the laser head housing (1), characterized in that it also includes: an abutment mechanism (2), the abutment mechanism (2) being arranged inside the laser head housing (1), the abutment mechanism (2) comprising a fixing 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 fixing block (201), the abutment mechanism (2) being used for supporting and abutting the joint (112); A fixing mechanism (3), the fixing mechanism (3) being arranged below the fixing block (201), the fixing mechanism (3) comprising a clamping plate (311) located below the fixing block (201), a connecting strip (310) being fixedly mounted on an outer wall of the clamping plate (311), a hinge block (312) being fixedly mounted on a top surface of one end of the connecting strip (310), and the fixing mechanism (3) being used to fix the joint.

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

3. A high performance double end seal QBH joint according to claim 1, characterized in that: The upper outer wall of the joint seat (102) is provided with a second external thread (105), the lower inner wall of the joint cover (106) is provided with a second internal thread (107), the lower inner wall of the joint cover (106) is threadedly connected to the upper outer wall of the joint seat (102), and the upper inner wall 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 formed through the inner wall of the joint cover (106), and a connection groove (113) is formed 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 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 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-end seal QBH joint according to claim 1, characterized in that: Two fixing blocks (201) are provided, and vertical grooves (202) are provided on the sides of the two fixing blocks (201) close to each other. Limiting rods (203) are fixedly installed on the inner walls of the two vertical grooves (202), and limiting sleeves (204) are slidably installed on the outer walls of the two limiting rods (203). The outer walls of the two limiting sleeves (204) are slidably connected to the inner walls of the two vertical grooves (202).

7. A high performance double-face sealed QBH joint according to claim 6, characterized in that: The outer walls of the two limit rods (203) are respectively slidably mounted with elastic members 1 (205); the two ends of the two elastic members 1 (205) are respectively 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 sides of the two limit sleeves (204) close to each other are respectively fixedly connected to the side surfaces of the circular frame 1 (206); the top surface of the circular frame 1 (206) is in contact with the bottom surface of the joint (112).

8. A high performance double-end seal QBH joint according to claim 6, characterized in that: The inner walls of the two vertical grooves (202) are respectively provided with a slide groove (301), the inner walls of the two slide grooves (301) are respectively fixedly mounted with two slide rods (302), the inner walls of the two slide grooves (301) are respectively slidably mounted with a slide sleeve (303), and the inner walls of the two slide sleeves (303) are respectively slidably connected to the outer walls of the plurality of slide rods (302).

9. A high performance double-end seal QBH joint according to claim 8, characterized in that: A second circular frame (305) is fixedly installed on the side of the two sliding sleeves (303), and the top surfaces of the two second circular frames (305) are movably connected to the bottom surfaces of the two limit sleeves (204). The two second circular frames (305) are respectively sleeved on the outside of the two limit rods (203), and the outer walls of the plurality of sliding rods (302) are slidably installed 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).

10. A high performance double-end seal QBH joint according to claim 9, 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 sliding 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). A fixed plate (308), the two fixed plates (308) are respectively provided with movable grooves (309) on their sides, the inner walls of the upper ends of the two movable grooves (309) are respectively provided with adjustment grooves, the outer walls of the two connecting strips (310) are respectively slidably connected to the inner walls of the two movable grooves (309), 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).

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