Optical fiber casing detection device

Abstract

The present invention relates to the field of optical fiber sleeve detection technology, and specifically to an optical fiber sleeve detection device, including a pressure tester and a pressure test box. The two ends of the pressure test box are respectively provided with a feed port and a discharge port. The pressure tester is arranged at the discharge port of the pressure test box. The feed port and the discharge port of the pressure test box are respectively provided with conveying rollers for conveying the optical fiber sleeve. The interior of the pressure test box is provided with a supporting plate for supporting the optical fiber sleeve below the optical fiber sleeve. The interior of the pressure test box is also provided with several lower pressure rollers distributed at equal intervals along the horizontal direction of the pressure test box. The lower pressure rollers are used to squeeze the optical fiber sleeve. The upper end of the interior of the pressure test box is also provided with a heating tube and a cooling tube. The heating tube and the cooling tube can detect the pressure resistance of the optical fiber sleeve in different environments, so that the detection effect is more comprehensive. The present application can quickly perform pressure tests on optical fiber sleeves in simulated different environments through the lower pressure roller.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber casing detection, in particular to an optical fiber casing detection device. Background Art

[0002] One of the functions of the fiber optic sleeve in the optical cable is to provide deformation buffer and mechanical protection for the optical fiber. Therefore, the hardness, bending resistance, pressure resistance, and bending rebound ability of the optical fiber loose sleeve play an important role in the entire communication network. Currently, the hardness, bending resistance, pressure resistance, and bending rebound ability of the optical fiber loose sleeve need to be measured using specialized instruments, which takes a long time and requires a large space for the measuring equipment.

[0003] In the existing testing process, the pressure resistance test usually only involves squeezing the optical fiber sleeve and then testing the squeezed optical fiber sleeve with a pressure tester. This testing method cannot test according to the squeezing under different environments, resulting in inadequate testing. Summary of the Invention

[0004] In response to the problems existing in the existing technology, an optical fiber sleeve detection device is provided. The heating tube and the cooling tube can detect the pressure resistance of the optical fiber sleeve in different environments, making the detection effect more comprehensive. The lower pressure roller can quickly simulate the pressure resistance test of the optical fiber sleeve in different environments.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] The optical fiber sleeve detection device includes a pressure tester and a pressure test box. The two ends of the pressure test box are respectively provided with a feed port and a discharge port. The pressure tester is arranged at the discharge port of the pressure test box. The feed port and the discharge port of the pressure test box are respectively provided with conveying rollers for conveying the optical fiber sleeve. The interior of the pressure test box is provided with a supporting plate for supporting the optical fiber sleeve below the optical fiber sleeve. The interior of the pressure test box is also provided with several lower pressure rollers distributed at equal intervals along the horizontal direction of the pressure test box. The lower pressure rollers are used to squeeze the optical fiber sleeve. The upper end of the interior of the pressure test box is also provided with a heating tube and a cooling tube.

[0007] Preferably, the lower pressure roller includes a roller and a rotating motor;

[0008] The roller is laterally arranged above the supporting plate, and rotating sleeves are coaxially arranged at both ends of the roller. The ends of the two rotating sleeves are respectively passed through and rotatably arranged on both sides of the pressure test box. The roller is provided with a number of raised pressure blocks distributed at equal intervals along the circumference of the roller. The raised pressure blocks can be extended and retracted along the radial direction of the roller. The roller is provided with an opening for each raised pressure block to move through. The interior of the roller is provided with a telescopic driving mechanism for driving each raised pressure block to extend and retract along the radial direction of the roller. An adjusting mechanism for controlling the operation of the telescopic mechanism is provided inside one of the two rotating sleeves.

[0009] The rotating motor is arranged outside the pressure test box, and the output end of the rotating motor is transmission-connected to the end of one of the rotating sleeves. Several rotating sleeves arranged side by side are interconnected through a synchronous belt transmission mechanism.

[0010] Preferably, the telescopic drive mechanism includes a bidirectional screw, a first sliding sleeve and a second sliding sleeve;

[0011] The bidirectional screw is coaxially arranged inside the drum, and the two ends of the bidirectional screw are respectively connected to the two ends of the drum. The bidirectional screw consists of a first screw and a second screw, and the threads on the first screw are arranged in opposite directions to the threads on the second screw.

[0012] The first sleeve is threadedly connected to the first screw, and the second sleeve is threadedly connected to the second screw. The connection between the first sleeve and the first screw is the same as the connection between the second slide and the second screw. The first sleeve is hinged with a first connecting rod corresponding to each raised pressure block, and the end of the first connecting rod away from the first sleeve is hinged to the end of the raised pressure block close to the inside of the drum. The second sleeve is provided with a second connecting rod corresponding to each raised pressure block, and the end of the second connecting rod away from the second sleeve is hinged to the other end of the raised pressure block close to the inside of the drum, and the adjusting mechanism is connected by transmission with the first screw.

[0013] Preferably, the adjustment mechanism includes a rotating shaft and a knob;

[0014] The rotating shaft is coaxially arranged inside one of the two rotating sleeves near the first thread, one end of the rotating shaft is connected to one end of the first screw, and the other end of the rotating shaft extends outward from the end of the rotating sleeve;

[0015] The knob is coaxially arranged at the extended end of the rotating shaft.

[0016] Preferably, the pressure test box is provided with a push plate on the side close to the knob, and the push plate is arranged vertically. Several bearings corresponding to each rotating sleeve are rotatably connected on the push plate. The rotating shaft passes through the inner ring of the bearing and extends to the side of the push plate away from the pressure test box. A conical abutment sleeve is provided on the side of the bearing close to the corresponding rotating sleeve. The tapered portion of the conical abutment sleeve can extend to the inside of one end of the corresponding rotating sleeve and its inner side can abut against the outside of the rotating shaft. A downwardly extending extension plate is provided at the lower center of the push plate, and a linear cylinder is provided on the side of the extension plate away from the pressure test box. The output end of the linear cylinder is connected to the side of the push plate away from the pressure test box. Vertical plates are respectively arranged at intervals on both sides of the push plate, and limit blocks are also provided on both sides of the push plate. Each vertical plate is respectively provided with a strip slide groove for translation of each limit block.

[0017] Preferably, a finger cylinder is provided on the side of the pressure test box away from the push plate, and the output end of the finger cylinder is provided with two clamping fixtures that can clamp the end of one of the rotating sleeves, and the clamping surface of the clamping fixture is provided with a rubber pad that can abut against the outside of the corresponding rotating sleeve.

[0018] Preferably, a plurality of disks corresponding to each rotating shaft are provided on the side of the push plate away from the pressure test box, the disks are provided with scales distributed along the circumference of the disks, and the knob is provided with a pointer for indicating the scales.

[0019] Preferably, the synchronous belt transmission mechanism includes a synchronous pulley;

[0020] The number of synchronous wheels is the same as the number of rotating sleeves, among which the number of rotating sleeves close to the first screw is the same and is arranged on the outside of the rotating sleeve in a one-to-one correspondence. The synchronous wheels are connected by a synchronous belt transmission. A tensioning mechanism is respectively provided between two adjacent synchronous wheels. The tensioning mechanism is provided on the outer wall of the pressure test box, and the working end of the tensioning mechanism slides with the synchronous belt.

[0021] Preferably, the tensioning mechanism includes an inverted L-shaped bracket, a buffer rod, a spring, a guide wheel frame and a guide wheel;

[0022] The inverted L-shaped bracket is arranged on the outer wall of the pressure test box and is located above the space between two adjacent synchronous wheels;

[0023] The buffer rod is vertical and slides through the top of the inverted L-shaped bracket;

[0024] The guide wheel frame is arranged at the bottom of the buffer rod, the guide wheel is rotatably arranged inside the guide wheel frame, and the guide wheel is slidably matched with the synchronous belt;

[0025] The spring is sleeved on the outside of the buffer rod, and the two ends of the spring are respectively abutted against the upper bottom of the inverted L-shaped bracket and the top of the guide wheel frame.

[0026] Preferably, the heating tube and the cooling tube are both arranged in a surrounding manner inside the pressure test box, a ventilation hole is provided on one side of the pressure test box, and a cover plate that can be opened and closed is provided at the ventilation hole of the pressure test box.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. This application can detect the pressure resistance of optical fiber sleeves in different environments through heating tubes and cooling tubes, making the detection effect more comprehensive. The pressure roller can quickly simulate the pressure resistance of optical fiber sleeves in different environments.

[0029] 2. The present application drives the telescopic drive mechanism to work through an adjustment mechanism, and the telescopic drive mechanism can extend and retract each raised pressure block on the roller. When the raised pressure block extends a longer distance along the opening of the roller, it means that the force of squeezing the optical fiber sleeve increases. When the raised pressure block is retracted into the inside of the roller along the roller, it means that the force of squeezing the optical fiber sleeve decreases. When it is necessary to drive all the rollers to rotate, one of the rotating sleeves is driven to rotate through the output end of the rotating motor, and the rotating sleeve drives the corresponding roller to rotate. At the same time, all the rollers are driven to rotate synchronously through the synchronous belt transmission mechanism.

[0030] 3. This application uses the pointer on the knob to indicate the scale position on the disc, so that the staff can clearly know how to adjust the squeezing force of the raised pressure block.

[0031] 4. This application requires the staff to open the cover and quickly dissipate the temperature in the pressure test box through the vents, which facilitates the cooling of the refrigeration pipe and prevents the refrigeration efficiency of the refrigeration pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of the optical fiber casing detection device Figure 1 ;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the optical fiber casing detection device Figure 2 ;

[0034] Figure 3 This is a schematic diagram of the three-dimensional structure of the optical fiber casing detection device Figure 3 ;

[0035] Figure 4 This is a top view of the structure of the optical fiber casing detection device;

[0036] Figure 5 It is a fiber optic casing detection device Figure 4 Cross-sectional view along the middle line AA;

[0037] Figure 6 This is a top view of the local structure of the optical fiber casing detection device;

[0038] Figure 7 It is a fiber optic casing detection device Figure 6 Cross-sectional view along the middle edge BB;

[0039] Figure 8 This is a schematic diagram of the partial three-dimensional structure of the optical fiber casing detection device Figure 1 ;

[0040] Figure 9 It is a fiber optic casing detection device Figure 8 Enlarged view of point C in the middle;

[0041] Figure 10 This is a schematic diagram of the partial three-dimensional structure of the optical fiber casing detection device Figure 2 .

[0042] The numbers in the figure are:

[0043] 1-Compression tester; 2-Pressure test chamber; 3-Feed port; 4-Discharge port; 5-Conveyor roller; 6-Support plate; 7-Lower pressure roller; 8-Heating tube; 9-Refrigeration tube; 10-Roller; 11-Rotating motor; 12-Rotating sleeve; 13-Raised pressure block; 14-Bidirectional screw; 15-First sliding sleeve; 16-Second sliding sleeve; 17-First screw; 18-Second screw; 19-First connecting rod; 20-Second connecting rod; 21-Rotating shaft; 22- Knob; 23-push plate; 24-bearing; 25-tapered abutment sleeve; 26-extension plate; 27-linear cylinder; 28-vertical plate; 29-limiting block; 30-strip slide; 31-finger cylinder; 32-clamping fixture; 33-rubber pad; 34-disc; 35-scale; 36-pointer; 37-synchronizing wheel; 38-synchronizing belt; 39-inverted L-shaped bracket; 40-buffer rod; 41-spring; 42-guide wheel frame; 43-guide wheel; 44-cover plate. DETAILED DESCRIPTION

[0044] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] See also Figures 1 to 10As shown, the optical fiber sleeve detection device includes a pressure tester 1 and a pressure test box 2. The two ends of the pressure test box 2 are respectively provided with a feed port 3 and a discharge port 4. The pressure tester 1 is arranged at the discharge port 4 of the pressure test box 2. The feed port 3 and the discharge port 4 of the pressure test box 2 are respectively provided with conveying rollers 5 for conveying the optical fiber sleeve. The interior of the pressure test box 2 is provided with a supporting plate 6 for supporting the optical fiber sleeve below the optical fiber sleeve. The interior of the pressure test box 2 is also provided with several lower pressure rollers 7 distributed at equal intervals along the horizontal direction of the pressure test box 2. The lower pressure rollers 7 are used to squeeze the optical fiber sleeve. The upper end of the interior of the pressure test box 2 is also provided with a heating tube 8 and a cooling tube 9.

[0046] Based on the above embodiment, when it is necessary to test the optical fiber sleeve, the interior of the pressure test box 2 can be heated or cooled according to different environments. When testing the pressure resistance in a high-temperature environment, the interior of the pressure test box 2 is heated in advance by the heating tube 8, so that the temperature inside the pressure test box 2 is increased. The optical fiber sleeve to be tested is input into the interior of the pressure test box 2 from the feed port 3 of the pressure test box 2 through the conveying roller 5, and the conveyed optical fiber sleeve is squeezed by several lower pressing rollers 7. The supporting plate 6 is used to support the optical fiber sleeve. One end is transported to the pressure tester 1 through the discharge port 4 of the pressure test box 2, and the pressure tester 1 is used to detect the pressure resistance value of the optical fiber sleeve in a high-temperature environment. When it is necessary to detect the pressure resistance in a low-temperature environment, it is only necessary to turn off the heating tube 8 and start the refrigeration tube 9 to cool the inside of the pressure test box 2, and then squeeze the optical fiber sleeve in the above manner. Finally, the pressure resistance in the low-temperature state is detected by the pressure tester. The heating tube 8 and the refrigeration tube 9 can detect the pressure resistance of the optical fiber sleeve in different environments, making the detection effect more comprehensive.

[0047] See also Figures 3 to 7 As shown, the lower pressure roller 7 includes a roller 10 and a rotating motor 11;

[0048] The roller 10 is laterally arranged above the supporting plate 6, and rotating sleeves 12 are coaxially arranged at both ends of the roller 10. The ends of the two rotating sleeves 12 are respectively passed through and rotatably arranged on both sides of the pressure test box 2. The roller 10 is provided with a plurality of raised pressure blocks 13 distributed at equal intervals along the circumferential direction of the roller 10. The raised pressure blocks 13 can be retracted and arranged on the roller 10 in the radial direction of the roller 10. The roller 10 is provided with an opening for each raised pressure block 13 to move through. The interior of the roller 10 is provided with a telescopic driving mechanism for driving each raised pressure block 13 to retract and retract along the radial direction of the roller 10. An adjusting mechanism for controlling the operation of the telescopic mechanism is provided inside one of the two rotating sleeves 12.

[0049] The rotating motor 11 is arranged outside the pressure test box 2, and the output end of the rotating motor 11 is transmission-connected to the end of one of the rotating sleeves 12. Several rotating sleeves 12 arranged side by side are interconnected through a synchronous belt 38 transmission mechanism.

[0050] Based on the above embodiment, when it is necessary to extrude the optical fiber sleeve, the extrusion force can be adjusted according to the situation, and the telescopic drive mechanism is driven to work by the adjustment mechanism. The telescopic drive mechanism can extend and retract each protruding pressure block 13 on the roller 10. When the protruding pressure block 13 extends a longer distance along the opening of the roller 10, it means that the force of squeezing the optical fiber sleeve is increased. When the protruding pressure block 13 is retracted into the inside of the roller 10 along the roller 10, it means that the force of squeezing the optical fiber sleeve is weakened. When it is necessary to drive all the rollers 10 to rotate, one of the rotating sleeves 12 is driven to rotate through the output end of the rotating motor 11, and the rotating sleeve 12 drives the corresponding roller 10 to rotate. At the same time, all the rollers 10 are driven to rotate synchronously through the synchronous belt 38 transmission mechanism.

[0051] See also Figure 7 As shown, the telescopic drive mechanism includes a bidirectional screw 14, a first sliding sleeve 15 and a second sliding sleeve 16;

[0052] The bidirectional screw 14 is coaxially arranged inside the drum 10. The two ends of the bidirectional screw 14 are respectively connected to the two ends of the drum 10. The bidirectional screw 14 is composed of a first screw 17 and a second screw 18. The threads on the first screw 17 are arranged in opposite directions to the threads on the second screw 18.

[0053] The first sleeve 15 is threadedly connected to the first screw 17, and the second sleeve 16 is threadedly connected to the second screw 18. The connection between the first sleeve 15 and the first screw 17 is the same as the connection between the second slide and the second screw 18. The first sleeve 15 is hinged with a first connecting rod 19 corresponding to each raised pressure block 13. The end of the first connecting rod 19 away from the first sleeve 15 is hinged to the end of the raised pressure block 13 close to the inside of the drum 10. The second sleeve 16 is provided with a second connecting rod 20 corresponding to each raised pressure block 13. The end of the second connecting rod 20 away from the second sleeve 16 is hinged to the other end of the raised pressure block 13 close to the inside of the drum 10, and the adjusting mechanism is connected by transmission to the first screw 17.

[0054] Based on the above embodiment, when it is necessary to drive each raised pressure block 13 in the roller 10 to extend or retract, the first screw 17 is driven to rotate by the adjusting mechanism, and the first screw 17 drives the second screw 18 to rotate. The first screw 17 and the second screw 18 are rotated at the same time, so that the first sleeve 15 arranged on the first screw 17 and the second sleeve 16 arranged on the second screw 18 are close to or away from each other, and the first sleeve 15 and the second sleeve 16 are driven at the same time by the first connecting rod 19 and the second connecting rod 20 to extend or retract the raised pressure block 13 along the opening of the roller 10, thereby realizing the extension and retraction of the raised pressure block 13.

[0055] See also Figures 7 to 9 As shown, the adjustment mechanism includes a rotating shaft 21 and a knob 22;

[0056] The rotating shaft 21 is coaxially disposed inside one of the two rotating sleeves 12 near the first thread. One end of the rotating shaft 21 is connected to one end of the first screw rod 17, and the other end of the rotating shaft 21 extends outward from the end of the rotating sleeve 12.

[0057] The knob 22 is coaxially disposed at an extended end of the rotation shaft 21 .

[0058] Based on the above embodiment, when the bidirectional screw 14 needs to be rotated, the staff rotates the knob 22, and the knob 22 drives the rotating rod to rotate, and the rotating rod drives the bidirectional screw 14 to rotate.

[0059] See also Figure 7 and Figure 8 As shown, the pressure test box 2 is provided with a push plate 23 on the side close to the knob 22. The push plate 23 is vertically arranged. Several bearings 24 corresponding to each rotating sleeve 12 are rotatably connected to the push plate 23. The rotating shaft 21 passes through the inner ring of the bearing 24 and extends to the side of the push plate 23 away from the pressure test box 2. A conical abutment sleeve 25 is provided on the side of the bearing 24 close to the corresponding rotating sleeve 12. The tapered portion of the conical abutment sleeve 25 can extend into the interior of one end of the corresponding rotating sleeve 12 and its The inner side can be set to abut against the outside of the rotating shaft 21, and a downward extending extension plate 26 is provided at the lower center of the push plate 23. A linear cylinder 27 is provided on the side of the extension plate 26 away from the pressure test box 2. The output end of the linear cylinder 27 is connected to the side of the push plate 23 away from the pressure test box 2. Vertical plates 28 are respectively arranged at intervals on both sides of the push plate 23, and limit blocks 29 are also provided on both sides of the push plate 23. Each vertical plate 28 is respectively provided with a strip slide 30 for each limit block 29 to move horizontally.

[0060] Based on the above embodiment, when the raised pressure block 13 is adjusted, the extension plate 26 and the push plate 23 are driven to translate toward the direction of the pressure test box 2 through the output end of the linear cylinder 27, and all the bearings 24 and the conical abutment sleeve 25 are driven by the push plate 23 to move toward the end of the corresponding rotating sleeve 12 until the conical sleeve is inserted between the rotating rod and the rotating sleeve 12 and presses against the rotating tube and the rotating sleeve 12, so that the rotating tube and the rotating sleeve 12 are fixedly connected. The bearing 24 can prevent the push plate 23 from rotating while the rotating rod and the rotating sleeve 12 rotate. When the push plate 23 is moving, the limit blocks 29 set on both sides of the push plate 23 limit the movement along the strip groove 30 on the corresponding vertical plate 28.

[0061] See also Figure 3 、 Figure 4 and Figure 7 As shown, a finger cylinder 31 is provided on the side of the pressure test box 2 away from the push plate 23, and the output end of the finger cylinder 31 is provided with two clamping fixtures 32 that can clamp the end of one of the rotating sleeves 12, and the clamping surface of the clamping fixture 32 is provided with a rubber pad 33 that can abut against the outside of the corresponding rotating sleeve 12.

[0062] Based on the above embodiment, when adjusting the raised pressure block 13 in the roller 10, in order to prevent the roller 10 from rotating, the finger cylinder 31 drives two clamping fixtures 32 to clamp the outside of one of the rotating sleeves 12. Since each roller 10 is connected through a synchronous belt 38 transmission mechanism, when one of the rollers 10 is in a fixed state, all the rollers 10 are fixed, thereby avoiding the roller 10 from rotating when adjusting the cam pressure block, thereby affecting the adjustment.

[0063] See also Figure 8 and Figure 9 As shown, a plurality of disks 34 corresponding to each rotating shaft 21 are provided on the side of the push plate 23 away from the pressure test box 2. The disks 34 are provided with scales 35 distributed along the circumference of the disks 34, and the knob 22 is provided with a pointer 36 for indicating the scales 35.

[0064] Based on the above embodiment, when the staff rotates the knob 22 , the pointer 36 on the knob 22 can indicate the position of the scale 35 on the disk 34 , so that the staff can clearly know how to adjust the squeezing force of the raised pressing block 13 .

[0065] See also Figure 10 As shown, the synchronous belt 38 transmission mechanism includes a synchronous wheel 37;

[0066] The number of synchronous wheels 37 is the same as the number of rotating sleeves 12, among which the rotating sleeves 12 close to the first screw 17, and they are arranged on the outside of the rotating sleeve 12 in a one-to-one correspondence. The synchronous wheels 37 are connected to each other through a synchronous belt 38. A tensioning mechanism is provided between each adjacent synchronous wheel 37. The tensioning mechanism is provided on the outer wall of the pressure test box 2, and the working end of the tensioning mechanism is slidably engaged with the synchronous belt 38.

[0067] Based on the above embodiment, when it is necessary to drive each roller 10 to rotate at the same time, the synchronous wheel 37 on each rotating sleeve 12 and the synchronous belt 38 on each synchronous wheel 37 cooperate with each other, so that all the rotating sleeves 12 and the rollers 10 rotate. The synchronous belt 38 can be tensioned by the tensioning mechanism to prevent the synchronous belt 38 from loosening, thereby affecting the rotation of each roller 10.

[0068] See also Figure 10 As shown, the tensioning mechanism includes an inverted L-shaped bracket 39, a buffer rod 40, a spring 41, a guide wheel frame 42 and a guide wheel 43;

[0069] The inverted L-shaped bracket 39 is provided on the outer wall of the pressure test box 2 and is located above two adjacent synchronous wheels 37;

[0070] The buffer rod 40 is vertical and slides through the top of the inverted L-shaped bracket 39;

[0071] The guide wheel frame 42 is provided at the bottom of the buffer rod 40, and the guide wheel 43 is rotatably provided inside the guide wheel frame 42, and the guide wheel 43 is slidably engaged with the synchronous belt 38;

[0072] The spring 41 is sleeved on the outside of the buffer rod 40 , and two ends of the spring 41 are respectively abutted against the upper bottom of the inverted L-shaped bracket 39 and the top of the guide wheel frame 42 .

[0073] Based on the above embodiment, through the mutual cooperation of the inverted L-shaped bracket 39, the buffer rod 40, the spring 41 and the guide wheel frame 42, the guide wheel 43 has pressure in the direction of the synchronous belt 38, so that the guide wheel 43 is always in a sliding fit state with the synchronous belt 38, and presses against the synchronous belt 38 to prevent the synchronous belt 38 from loosening.

[0074] See also Figure 2 、 Figure 8 and Figure 10 As shown, the heating tube 8 and the cooling tube 9 are both arranged in a surrounding manner inside the pressure test box 2. A vent is provided on one side of the pressure test box 2. A cover 44 that can be opened and closed is provided at the vent.

[0075] Based on the above embodiment, when the pressure test box 2 is heated by the heating tube 8, the temperature inside the pressure test box 2 cannot be dissipated quickly. At this time, the staff opens the cover 44 and quickly dissipates the temperature inside the pressure test box 2 through the ventilation hole, which facilitates the cooling of the refrigeration tube 9 and prevents the cooling efficiency of the refrigeration tube 9 from being reduced.

[0076] The present application can detect the pressure resistance of the optical fiber sleeve in different environments through the heating tube 8 and the cooling tube 9, making the detection effect more comprehensive. The optical fiber sleeve in different simulated environments can be quickly tested for pressure resistance by the lower pressure roller 7; the telescopic driving mechanism is driven to work by the adjustment mechanism, and the telescopic driving mechanism can extend and retract each convex pressing block 13 on the roller 10. When the convex pressing block 13 extends a long distance along the opening of the roller 10, it means that the force of squeezing the optical fiber sleeve increases; when the convex pressing block 13 is retracted along the roller 10 into the inside of the roller 10, it means that the force of squeezing the optical fiber sleeve decreases. Weak, when it is necessary to drive all the rollers 10 to rotate, one of the rotating sleeves 12 is driven to rotate through the output end of the rotating motor 11, and the rotating sleeve 12 drives the corresponding roller 10 to rotate, and at the same time drives all the rollers 10 to rotate synchronously through the synchronous belt 38 transmission mechanism; the pointer 36 on the knob 22 indicates the position of the scale 35 on the disk 34, so that the staff can clearly know how to adjust the squeezing force of the raised pressure block 13; the staff opens the cover 44, and the temperature in the pressure test box 2 is quickly dissipated through the vent, which is convenient for the refrigeration pipe 9 to cool down and prevent the refrigeration efficiency of the refrigeration pipe 9 from being reduced.

[0077] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An optical fiber casing detection device, comprising a compression tester (1), characterized in that: The pressure test box (2) further comprises a pressure test box (2), wherein both ends of the pressure test box (2) are provided with a feed port (3) and a discharge port (4), a pressure resistance detector (1) is provided at the discharge port (4) of the pressure test box (2), and a conveying roller (5) for conveying the optical fiber sleeve is provided at the feed port (3) and the discharge port (4) of the pressure test box (2), respectively. A supporting plate (6) for supporting the optical fiber sleeve is provided inside the pressure test box (2) and located below the optical fiber sleeve. The pressure test box (2) is further provided with a plurality of lower pressure rollers (7) distributed at equal intervals along the horizontal direction of the pressure test box (2), and the lower pressure rollers (7) are used to squeeze the optical fiber sleeve. A heating tube (8) and a cooling tube (9) are further provided at the upper end of the interior of the pressure test box (2). The lower pressure roller (7) includes a roller (10) and a rotating motor (11); The roller (10) is laterally arranged above the supporting plate (6), and rotating sleeves (12) are coaxially arranged at both ends of the roller (10), and the ends of the two rotating sleeves (12) are respectively connected and rotatably arranged on both sides of the pressure test box (2). The roller (10) is provided with a plurality of convex pressure blocks (13) distributed at equal intervals along the circumferential direction of the roller (10), and the convex pressure blocks (13) are arranged on the roller (10) so as to be able to be telescopically extended along the radial direction of the roller (10). The roller (10) is provided with an opening for each convex pressure block (13) to pass through and move, and a telescopic driving mechanism for driving each convex pressure block (13) to be telescopically extended along the radial direction of the roller (10) is provided inside the roller (10), and an adjusting mechanism for controlling the operation of the telescopic mechanism is provided inside one of the two rotating sleeves (12); The rotating motor (11) is arranged outside the pressure test box (2), and the output end of the rotating motor (11) is connected to the end of one of the rotating sleeves (12) by transmission, and the rotating sleeves (12) arranged side by side are connected to each other by a synchronous belt (38) transmission mechanism; The telescopic drive mechanism comprises a bidirectional screw (14), a first sliding sleeve (15) and a second sliding sleeve (16); The bidirectional screw (14) is coaxially arranged inside the drum (10), and the two ends of the bidirectional screw (14) are respectively axially connected to the two ends inside the drum (10). The bidirectional screw (14) is composed of a first screw (17) and a second screw (18), and the threads on the first screw (17) and the threads on the second screw (18) are arranged in opposite directions. The first sliding sleeve (15) is threadedly connected to the first screw (17), and the second sliding sleeve (16) is threadedly connected to the second screw (18). The connection between the first sliding sleeve (15) and the first screw (17) is the same as the connection between the second slide and the second screw (18). The first sliding sleeve (15) is hingedly provided with a first connecting rod (19) corresponding to each protruding pressure block (13). One end of the first connecting rod (19) away from the first sliding sleeve (15) is hingedly connected to one end of the protruding pressure block (13) close to the inside of the roller (10). The second sliding sleeve (16) is provided with a second connecting rod (20) corresponding to each protruding pressure block (13). One end of the second connecting rod (20) away from the second sliding sleeve (16) is hingedly provided to the other end of the protruding pressure block (13) close to the inside of the roller (10). The adjusting mechanism is connected by transmission with the first screw (17); A push plate (23) is provided on one side of the pressure test box (2) near the knob (22). The push plate (23) is arranged in a vertical shape. A plurality of bearings (24) corresponding to each rotating sleeve (12) are rotatably connected to the push plate (23). The rotating shaft (21) passes through the inner ring of the bearing (24) and extends toward the side of the push plate (23) away from the pressure test box (2). A conical abutment sleeve (25) is provided on the side of the bearing (24) near the corresponding rotating sleeve (12). The conical portion of the conical abutment sleeve (25) can extend into the interior of one end of the corresponding rotating sleeve (12) and its inner side The push plate (23) is capable of being abutted against the outside of the rotating shaft (21), and an extension plate (26) extending downward is provided at the center below the push plate (23). A linear cylinder (27) is provided on the side of the extension plate (26) away from the pressure test box (2), and the output end of the linear cylinder (27) is connected to the side of the push plate (23) away from the pressure test box (2). Vertical plates (28) are respectively provided on both sides of the push plate (23), and limit blocks (29) are also provided on both sides of the push plate (23). Each vertical plate (28) is provided with a strip-shaped slide groove (30) capable of allowing each limit block (29) to move horizontally.

2. The optical fiber casing detection device according to claim 1, characterized in that: The adjustment mechanism includes a rotating shaft (21) and a knob (22); The rotating shaft (21) is coaxially arranged inside one of the rotating sleeves (12) near the first thread of the two rotating sleeves (12), one end of the rotating shaft (21) is connected to one end of the first screw rod (17), and the other end of the rotating shaft (21) extends outward from the end of the rotating sleeve (12); The knob (22) is coaxially arranged at the extended end of the rotating shaft (21).

3. The optical fiber casing detection device according to claim 1 or 2, characterized in that: A finger cylinder (31) is provided on a side of the pressure test box (2) away from the push plate (23), and an output end of the finger cylinder (31) is provided with two clamping jigs (32) capable of clamping the end of one of the rotating sleeves (12), and a clamping surface of the clamping jig (32) is provided with a rubber pad (33) capable of abutting against the outside of the corresponding rotating sleeve (12).

4. The optical fiber casing detection device according to claim 1, characterized in that: A plurality of disks (34) corresponding to each rotation axis (21) are provided on a side of the push plate (23) away from the pressure test box (2), and the disks (34) are provided with scales (35) distributed along the circumference of the disks (34), and a pointer (36) for indicating the scales (35) is provided on the knob (22).

5. The optical fiber casing detection device according to claim 1, characterized in that: The synchronous belt (38) transmission mechanism includes a synchronous wheel (37); The number of the synchronous wheels (37) is the same as the number of the rotating sleeves (12) near the first screw (17), and the synchronous wheels (37) are arranged outside the rotating sleeves (12) in a one-to-one correspondence. The synchronous wheels (37) are connected to each other through a synchronous belt (38). A tensioning mechanism is provided between two adjacent synchronous wheels (37). The tensioning mechanism is provided on the outer wall of the pressure test box (2), and the working end of the tensioning mechanism is in sliding cooperation with the synchronous belt (38).

6. The optical fiber casing detection device according to claim 5, characterized in that: The tensioning mechanism includes an inverted L-shaped bracket (39), a buffer rod (40), a spring (41), a guide wheel frame (42) and a guide wheel (43); An inverted L-shaped bracket (39) is provided on the outer wall of the pressure test box (2) and is located above two adjacent synchronous wheels (37); The buffer rod (40) is vertical and slides through the top of the inverted L-shaped bracket (39); The guide wheel frame (42) is arranged at the bottom of the buffer rod (40), and the guide wheel (43) is rotatably arranged inside the guide wheel frame (42), and the guide wheel (43) is slidably matched with the synchronous belt (38); The spring (41) is sleeved on the outside of the buffer rod (40), and the two ends of the spring (41) are respectively abutted against the upper bottom of the inverted L-shaped bracket (39) and the top of the guide wheel frame (42).

7. The optical fiber casing detection device according to claim 1, characterized in that: The heating tube (8) and the cooling tube (9) are both arranged in a surrounding manner inside the pressure test box (2). A vent is provided on one side of the pressure test box (2), and a cover plate (44) that can be opened and closed is provided at the vent of the pressure test box (2).

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