A measuring device for the maximum inner diameter of a braided sleeve

Abstract

The invention provides a device for measuring the maximum inner diameter of a braided sleeve, comprising a base; a measuring structure comprising a fixed block, a slide rail and a sliding block, the fixed block being arranged at one end of the top of the base, the slide rail being perpendicular to the fixed block and arranged at the top of the base, and the sliding block being arranged on the slide rail; the fixed structure comprising a hook, a fixed column and a sliding column, there are a plurality of hooks, the fixed column and the sliding column are respectively and detachably installed in parallel on the hooks arranged on the fixed block and the sliding block; a transmission structure comprising a screw rod, a transmission block and a hand wheel, the screw rod passes through the base and is connected to the hand wheel at the end of the passing end, the transmission block is arranged on the screw rod and located in the base, the transmission block is connected to the sliding block, and rotating the hand wheel can drive the sliding block to move; a force unloading alarm structure is sleeved on the screw rod, connecting the hand wheel and the base, and when the torque of rotating the hand wheel is greater than or equal to the set torque of the force unloading alarm structure, the force unloading alarm structure emits an alarm prompt sound; a scale and a vernier scale of the display structure display the measured maximum inner diameter value of the braided sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of cable installation, and particularly to a measuring device for the maximum inner diameter of a braided sleeve. Background Art

[0002] In the aviation field, wire harnesses often need to be protected by an outer braided sleeve, and a braided sleeve with a suitable inner diameter needs to be selected corresponding to the outer diameter of the wire harness. Currently, the following methods are generally used to measure the maximum inner diameter of the braided sleeve: one is to use a vernier caliper. First, a special lengthened-arm vernier caliper needs to be customized so that the lengthened arm has enough length to penetrate into the braided sleeve, and the measurement result of the vernier caliper needs to be converted. Second, when using the vernier caliper to measure the braided sleeve, a certain force is required to support the process of unfolding the braided sleeve, and the opening size depends on human effort. Therefore, the maximum inner diameter of the braided sleeve cannot be obtained stably and accurately. The other is to use a conical aperture gauge. Although it can measure the maximum inner diameter of the braided sleeve, in the actual operation process, when using the conical aperture gauge to measure, the edge of the braided sleeve will naturally spread due to being enlarged, thus affecting the accuracy of the measurement result. And if facing the measurement requirements with a large diameter span at the same time, multiple aperture gauges with different size ranges need to be prepared and tested one by one to select a suitable aperture gauge, and the operation is cumbersome.

[0003] Therefore, it is necessary to provide a measuring device for the maximum inner diameter of a braided sleeve. Summary of the Invention

[0004] The present invention provides a measuring device for the maximum inner diameter of a braided sleeve.

[0005] An embodiment of the present invention provides a measuring device for the maximum inner diameter of a braided sleeve, including a base, a measuring structure, a fixing structure, a transmission structure, a force-relieving alarm structure, and a display structure;

[0006] The measuring structure includes a fixed block, a slide rail, and a sliding block. The fixed block is arranged at one end of the top of the base. The slide rail is perpendicular to the fixed block and arranged on the top of the base. The sliding block is arranged on the slide rail, parallel to the fixed block, and can move relative to the fixed block along the slide rail;

[0007] The fixing structure includes hooks, fixing columns, and sliding columns. There are multiple hooks, and the multiple hooks are respectively fixed on the fixed block and the sliding block. The fixing column and the sliding column are respectively detachably and parallelly installed on the hooks on the fixed block and the sliding block;

[0008] The transmission structure includes a lead screw, a transmission block, and a handwheel. The lead screw passes through the base and can rotate freely in the base. One end of the lead screw passes out of the base, and a handwheel is connected to the end of the passing-out end. The transmission block is arranged on the lead screw and is located in the base. The transmission block is connected to the sliding block. When the handwheel is rotated to drive the lead screw to rotate in the base, the transmission block and the sliding block are driven to move;

[0009] The load-relieving alarm structure is sleeved on the lead screw and is connected to the handwheel and the base. When the torque of rotating the handwheel is greater than or equal to the set torque of the load-relieving alarm structure, the load-relieving alarm structure emits an alarm prompt sound;

[0010] The display structure includes a scale and a vernier. The scale is arranged on one side of the base, and the vernier is arranged on the corresponding side of the sliding block. The scale and the vernier display the maximum inner diameter value of the measured braided tube sleeve;

[0011] During measurement, detach the fixed column and the sliding column from the hook. After passing the fixed column and the sliding column through the braided sleeve, respectively install the fixed column and the sliding column on the hooks on the fixed block and the sliding block. Rotate the handwheel to drive the lead screw to rotate, and drive the sliding block and the sliding column to move away from the fixed block through the transmission block to open the braided sleeve. When the load-relieving alarm structure emits an alarm prompt sound, it means that the braided sleeve is opened to the maximum, and read the maximum inner diameter value of the braided sleeve through the cooperation of the scale and the vernier.

[0012] Preferably, the load-relieving alarm structure includes a spring base, a torque disc, a torque adjustment slider, and a torque adjustment disc arranged coaxially in sequence. The spring base is connected to the base, the torque adjustment disc is connected to the handwheel, and the torque adjustment slider is connected to the torque adjustment disc. Set the set torque of the torque adjustment disc by adjusting the relative position of the torque adjustment slider and the torque adjustment disc; a plurality of springs are arranged in the spring base. One end of the spring is arranged in the spring base, and the other end is provided with a ball. One end of the torque disc abuts against the ball, and the other end is connected to the torque adjustment slider. When the torque of rotating the handwheel is less than the set torque of the torque adjustment disc, the handwheel and the lead screw rotate freely relative to the torque adjustment disc; when the torque of rotating the handwheel is greater than or equal to the set torque of the torque adjustment disc, the torque adjustment disc drives the torque disc to rotate relative to the ball as the handwheel rotates, and the ball slides across the torque disc to emit an alarm prompt sound.

[0013] Preferably, a plurality of the springs are circumferentially and equidistantly arranged along the inner wall of the spring base; arc-shaped protrusions are circumferentially and equidistantly arranged at the end of the torque disc in contact with the ball; when the torque disc rotates relative to the ball, the ball slides across the arc-shaped protrusions of the torque disc to emit an alarm prompt sound.

[0014] Preferably, the torque adjustment disc is star-shaped, torque gear scales are arranged on the torque adjustment disc, a pointer is arranged on the torque adjustment slider, and by rotating the torque adjustment disc to adjust the torque gear scale indicated by the pointer, the torque gear of the torque adjustment disc is set.

[0015] Preferably, the outer diameter of the torque disc is equal to the inner diameter of the spring base, and the end of the torque disc in contact with the ball is embedded in the spring base.

[0016] Preferably, a convex block is arranged on one side of the end of the torque disc away from the ball, a groove matching the convex block is arranged on the torque adjustment slider and the torque disc, and the convex block is embedded in the groove for matching connection to prevent the relative rotation between the torque disc and the torque adjustment slider.

[0017] Preferably, the base is a hollow structure, positioning stoppers are respectively arranged at both ends of the base, the lead screw passes through the positioning stoppers, and the lead screw can freely rotate in the positioning stoppers.

[0018] Preferably, the hook is L-shaped, and the short sides of the hook installed on the fixed block and the hook installed on the sliding block are arranged opposite to each other.

[0019] Preferably, there are two slide rails, and the two slide rails are arranged in parallel on both sides of the top of the base.

[0020] Preferably, a cover plate is arranged at the end of the hand wheel away from the torque adjustment disc.

[0021] Compared with the prior art, the technical solution of the embodiment of the present invention has beneficial effects.

[0022] For example, a fixing device is provided to fix the fixing post and the sliding post passing through the braided sleeve parallel to the fixing block and the moving block of the measuring module. The sliding block is driven to move relative to the fixing block through a transmission structure, so as to realize the parallel opening of the braided sleeve and improve the accuracy of the measuring structure. A force-relieving alarm structure is arranged on the transmission structure, and a set torque is set in the force-relieving alarm structure. When the torque of the rotating handwheel is greater than or equal to the set torque of the force-relieving alarm structure, the force-relieving alarm structure emits an alarm sound, determining that the braided sleeve is opened to the maximum, avoiding excessive force during the opening process of the braided sleeve, which may cause damage or over-opening resulting in deviation of the measurement result. The maximum inner diameter value of the braided sleeve is read through the converted scale of the display structure in cooperation with the vernier caliper, without the need for further conversion. The measurement result is reliable, the operation method is simple, the maintenance is convenient, and it can meet the measurement requirements of various braided sleeves. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 Structural schematic diagram of the maximum inner diameter measuring device for the braided sleeve provided by the embodiment of the present invention;

[0025] Figure 2 Side view of the maximum inner diameter measuring device for the braided sleeve provided by the embodiment of the present invention;

[0026] Figure 3 Cross-sectional view of the maximum inner diameter measuring device for the braided sleeve provided by the embodiment of the present invention;

[0027] Figure 4 Exploded view of the force-relieving alarm structure provided by the embodiment of the present invention;

[0028] Figure 5 Pointer indication schematic diagram of the force-relieving alarm structure provided by the embodiment of the present invention.

[0029] 1. Base; 2. Fixing block; 3. Slide rail; 4. Sliding block; 5. Hook; 6. Fixing post; 7. Sliding post; 8. Lead screw; 10. Handwheel; 11. Spring base; 12. Spring; 13. Ball; 14. Torque disc; 15. Torque adjustment slider; 16. Torque adjustment disc; 17. Pointer; 18. Torque gear scale; 19. Cover plate; 20. Braided sleeve; 21. Scale; 22. Vernier caliper; 23. Positioning block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] The technical solutions of the present invention will be described in detail below with specific embodiments. These specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0032] Based on the problems existing in the prior art, an embodiment of the present invention provides a device for measuring the maximum inner diameter of a braided sleeve.

[0033] Figure 1 It is a schematic structural diagram of the device for measuring the maximum inner diameter of the braided sleeve provided by the embodiment of the present invention; Figure 2 It is a side view of the device for measuring the maximum inner diameter of the braided sleeve provided by the embodiment of the present invention; Figure 3 It is a sectional view of the device for measuring the maximum inner diameter of the braided sleeve provided by the embodiment of the present invention; Figure 4 It is an exploded view of the load-relieving alarm structure provided by the embodiment of the present invention; Figure 5 It is a pointer indication schematic diagram of the load-relieving alarm structure provided by the embodiment of the present invention.

[0034] As Figures 1 - 5 shown, a device for measuring the maximum inner diameter of a braided sleeve includes a base 1, a measuring structure, a fixing structure, a transmission structure, a load-relieving alarm structure, and a display structure;

[0035] The measuring structure includes a fixing block 2, a slide rail 3, and a sliding block 4. The fixing block 2 is arranged at one end of the top of the base 1. The slide rail 3 is perpendicular to the fixing block 2 and arranged on the top of the base 1. The sliding block 4 is arranged on the slide rail 3, parallel to the fixing block 2, and can move relative to the fixing block 2 along the slide rail 3;

[0036] The fixing structure includes hooks 5, fixing columns 6, and sliding columns 7. There are multiple hooks 5, and the multiple hooks 5 are respectively fixed on the fixing block 2 and the sliding block 4. The fixing column 6 and the sliding column 7 are respectively detachably and parallelly installed on the hooks 5 on the fixing block 2 and the sliding block 4;

[0037] The transmission structure includes a lead screw 8, a transmission block, and a handwheel 10. The lead screw 8 penetrates through the base 1 and can rotate freely in the base 1. One end of the lead screw 8 passes through the base 1, and the handwheel 10 is connected to the end of the passing-through end. The transmission block is arranged on the lead screw 8 and located in the base 1. The transmission block is connected to the sliding block 4. When the handwheel 10 is rotated to drive the lead screw 8 to rotate in the base 1, the transmission block and the sliding block 4 are driven to move;

[0038] The load-relieving alarm structure is sleeved on the lead screw 8, connecting the handwheel 10 and the base 1. When the torque of rotating the handwheel 10 is greater than or equal to the set torque of the load-relieving alarm structure, the load-relieving alarm structure emits an alarm prompt sound;

[0039] The display structure includes a scale 21 and a vernier scale 22. The scale 21 is arranged on one side of the base 1, and the vernier scale 22 is arranged on the corresponding side of the sliding block 4. The scale 21 and the vernier scale 22 display the maximum inner diameter value of the measured braided tube sleeve 20;

[0040] During measurement, detach the fixed column 6 and the sliding column 7 from the hook 5. After passing the fixed column 6 and the sliding column 7 through the braided sleeve 20, install the fixed column 6 and the sliding column 7 on the hooks 5 on the fixed block 2 and the sliding block 4 respectively. Rotate the handwheel 10 to drive the lead screw 8 to rotate, drive the sliding block 4 and the sliding column 7 to move away from the fixed block 2 through the transmission block to open the braided sleeve 20. When the load-relieving alarm structure emits an alarm prompt sound, it means that the braided sleeve 20 is opened to the maximum, and read the maximum inner diameter value of the braided sleeve 20 through the cooperation of the scale 21 and the vernier scale 22.

[0041] In a specific implementation, the scales on the vernier scale 22 and the scale 21 have been converted, so the maximum inner diameter value of the braided sleeve 20 can be directly read.

[0042] In some embodiments, the load-relieving alarm structure includes a spring base 11, a torque disc 14, a torque adjustment slider 15, and a torque adjustment disc 16 that are coaxially arranged in sequence. The spring base 11 is connected to the base 1, the torque adjustment disc 16 is connected to the handwheel 10, and the torque adjustment slider 15 is connected to the torque adjustment disc 15. Set the set torque of the torque adjustment disc 16 by adjusting the relative position of the torque adjustment slider 15 and the torque adjustment disc 16; A plurality of springs 12 are arranged in the spring base 11. One end of the spring 12 is arranged in the spring base 11, and the other end is provided with a ball 13. One end of the torque disc 14 abuts against the ball 13, and the other end is connected to the torque adjustment slider 15. When the torque of rotating the handwheel 10 is less than the set torque of the torque adjustment disc 16, the handwheel 10 and the lead screw 8 rotate freely relative to the torque adjustment disc 16; When the torque of rotating the handwheel 10 is greater than or equal to the set torque of the torque adjustment disc 16, the torque adjustment disc 16 drives the torque disc 14 to rotate relative to the ball 13 as the handwheel 10 rotates, and the ball 13 slides across the torque disc 14 to emit an alarm prompt sound.

[0043] In some embodiments, the plurality of springs 12 are arranged at equal intervals along the inner wall circumference of the spring base 11; The end of the torque disc 14 abutting against the ball 13 is provided with arc-shaped protrusions at equal intervals along the circumference; When the torque disc 14 rotates relative to the ball 13, the ball 13 slides across the arc-shaped protrusions of the torque disc 14 to emit an alarm prompt sound.

[0044] In some embodiments, the torque adjustment disc 16 is star-shaped, facilitating the rotation of the torque adjustment disc 16 to adjust the relative position between the torque adjustment slider 15 and the torque adjustment disc 16, and further setting the set torque of the torque adjustment disc 16. A torque gear scale 18 is provided on the torque adjustment disc 16, and a pointer 17 is provided on the torque adjustment slider 15. The torque gear of the torque adjustment disc 16 is set by rotating the torque adjustment disc 16 to adjust the torque gear scale 18 indicated by the pointer 17.

[0045] In a specific implementation, the torque gear of the torque adjustment disc 16 has 6 gears that can be adjusted to adapt to the torque requirements of different braided sleeves 20 when they are expanded to the maximum state.

[0046] In some embodiments, the outer diameter of the torque disc 14 is equal to the inner diameter of the spring base 11, and the end of the torque disc 14 that abuts against the ball 13 is embedded in the spring base 11.

[0047] In some embodiments, a convex block is provided on one side of the end of the torque disc 14 away from the ball 13, and the torque adjustment slider 15 and the torque disc 14 are provided with grooves that match the convex block. The convex block is embedded in the groove for matching connection to prevent the relative rotation between the torque disc 14 and the torque adjustment slider 15.

[0048] In some embodiments, the base 1 is a hollow structure, and positioning blocks 23 are respectively provided at both ends of the base 1. The lead screw 8 passes through the positioning blocks 23, and the lead screw 8 can rotate freely in the positioning blocks 23.

[0049] In some embodiments, the hook 5 is L-shaped, and the short sides of the hook 5 installed on the fixed block 2 and the hook 5 installed on the sliding block 4 are arranged opposite to each other.

[0050] In some embodiments, there are two slide rails 3, and the two slide rails 3 are arranged in parallel on both sides of the top of the base 1.

[0051] In some embodiments, a cover plate 19 is provided at the end of the handwheel 10 away from the torque adjustment disc 16.

[0052] In summary, for the maximum inner diameter measuring device of the braided sleeve according to the embodiment of the present invention, a fixing device is provided to fix the fixing column 6 and the sliding column 7 passing through the braided sleeve 20 parallel to the fixing block 2 and the moving block 4 of the measuring module. The transmission structure drives the moving block 4 to move relative to the fixing block 2 to realize the parallel opening of the braided sleeve 20, improving the accuracy of the measuring structure. A force-relieving alarm structure is arranged on the transmission structure, and a set torque is set in the force-relieving alarm structure. When the torque of the rotating handwheel 10 is greater than or equal to the set torque of the force-relieving alarm structure, the force-relieving alarm structure emits an alarm sound, determining that the braided sleeve 20 is opened to the maximum, avoiding damage to the braided sleeve 20 caused by excessive force during the expansion process or deviation of the measurement result caused by excessive expansion. The maximum inner diameter value of the braided sleeve 20 is read by matching the converted scale 21 of the display structure with the vernier 22, without the need for conversion. The measurement result is reliable, the operation method is simple, the maintenance is convenient, and the measurement requirements of various braided sleeves 20 can be met.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A measuring device for the maximum inner diameter of a braided sleeve, characterized in that, It includes a base, a measuring structure, a fixing structure, a transmission structure, a load-relieving alarm structure and a display structure; The measuring structure includes a fixed block, a slide rail and a sliding block. The fixed block is arranged at one end of the top of the base. The slide rail is perpendicular to the fixed block and arranged on the top of the base. The sliding block is arranged on the slide rail, parallel to the fixed block and can move relative to the fixed block along the slide rail; The fixing structure includes hooks, fixed columns and sliding columns. There are multiple hooks, and the multiple hooks are respectively fixed on the fixed block and the sliding block. The fixed column and the sliding column are respectively detachably and parallelly installed on the hooks on the fixed block and the sliding block; The transmission structure includes a lead screw, a transmission block and a hand wheel. The lead screw penetrates through the base and can rotate freely in the base. One end of the lead screw penetrates out of the base, and a hand wheel is connected to the end of the penetrated part. The transmission block is arranged on the lead screw and located in the base. The transmission block is connected to the sliding block. When the hand wheel is rotated to drive the lead screw to rotate in the base, the transmission block and the sliding block are driven to move; The load-relieving alarm structure is sleeved on the lead screw, connected to the hand wheel and the base. When the torque of rotating the hand wheel is greater than or equal to the set torque of the load-relieving alarm structure, the load-relieving alarm structure emits an alarm prompt sound; The display structure includes a scale and a vernier caliper. The scale is arranged on one side of the base, and the vernier caliper is arranged on the corresponding side of the sliding block. The scale and the vernier caliper display the maximum inner diameter value of the measured braided tube sleeve; During measurement, detach the fixed column and the sliding column from the hook. After passing the fixed column and the sliding column through the braided sleeve, install the fixed column and the sliding column on the hooks on the fixed block and the sliding block respectively. Rotate the hand wheel to drive the lead screw to rotate, and drive the sliding block and the sliding column to move away from the fixed block through the transmission block to open the braided sleeve. When the load-relieving alarm structure emits an alarm prompt sound, it means that the braided sleeve is opened to the maximum, and read the maximum inner diameter value of the braided sleeve through the cooperation of the scale and the vernier caliper.

2. The maximum inner diameter measuring device of the braided sleeve according to claim 1, wherein The load - unloading alarm structure includes a spring base, a torque disc, a torque - adjusting slider, and a torque - adjusting disc that are coaxially arranged in sequence. The spring base is connected to the base, the torque - adjusting disc is connected to the handwheel, and the torque - adjusting slider is connected to the torque - adjusting disc. The set torque of the torque - adjusting disc is set by adjusting the relative position between the torque - adjusting slider and the torque - adjusting disc. A plurality of springs are arranged in the spring base. One end of each spring is arranged in the spring base, and the other end is provided with a ball. One end of the torque disc abuts against the ball, and the other end is connected to the torque - adjusting slider. When the torque of the handwheel rotation is less than the set torque of the torque - adjusting disc, the handwheel and the lead screw rotate freely relative to the torque - adjusting disc. When the torque of the handwheel rotation is greater than or equal to the set torque of the torque - adjusting disc, the torque - adjusting disc drives the torque disc to rotate relative to the ball as the handwheel rotates, and the ball slides across the torque disc to emit an alarm prompt sound.

3. The maximum inner diameter measuring device for the braided sleeve according to claim 2, characterized in that, The plurality of springs are arranged at equal intervals circumferentially along the inner wall of the spring base. The end of the torque disc abutting against the ball is provided with arc - shaped protrusions at equal intervals circumferentially. When the torque disc rotates relative to the ball, the ball slides across the arc - shaped protrusions of the torque disc to emit an alarm prompt sound.

4. The measuring device for the maximum inner diameter of the braided sleeve according to claim 2, wherein The torque - adjusting disc is star - shaped, with torque - gear graduations arranged on the torque - adjusting disc. A pointer is arranged on the torque - adjusting slider. The torque - gear of the torque - adjusting disc is set by rotating the torque - adjusting disc to adjust the torque - gear graduation indicated by the pointer.

5. The measuring device for the maximum inner diameter of the braided sleeve according to claim 2, characterized in that, The outer diameter of the torque disc is equal to the inner diameter of the spring base, and the end of the torque disc abutting against the ball is embedded in the spring base.

6. The measuring device for the maximum inner diameter of the braided sleeve according to claim 2, characterized in that One side of the end of the torque disc away from the ball is provided with a convex block. The torque - adjusting slider and the torque disc are provided with grooves matching the convex block, and the convex block is embedded in the groove for matching connection to prevent the relative rotation between the torque disc and the torque - adjusting slider.

7. The measuring device for the maximum inner diameter of the braided sleeve according to claim 1, wherein, The base is a hollow structure, with positioning stoppers arranged at both ends of the base respectively. The lead screw passes through the positioning stoppers, and the lead screw can rotate freely in the positioning stoppers.

8. The maximum inner diameter measuring device of the braided sleeve according to claim 1, characterized in that The hook is L - shaped, and the short sides of the hook installed on the fixed block and the hook installed on the sliding block are arranged opposite to each other.

9. The maximum inner diameter measuring device of the braided sleeve according to claim 1, wherein There are two slide rails, and the two slide rails are arranged in parallel on both sides of the top of the base.

10. The measuring device for the maximum inner diameter of the braided sleeve according to claim 1, characterized in that, A cover plate is arranged at the end of the handwheel away from the torque - adjusting disc.

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