Maximum inner diameter measuring device for braided sleeve

Abstract

The invention provides a device for measuring the maximum inner diameter of a braided sleeve. The device comprises a base; the measuring structure comprises a fixed block, a sliding rail and a sliding block, the fixed block is arranged at one end of the top of the base, the sliding rail is perpendicular to the fixed block and arranged at the top of the base, and the sliding block is arranged on the sliding rail; the fixing structure comprises hooks, a fixing column and a sliding column, the number of the hooks is multiple, and the fixing column and the sliding column are detachably installed on the hooks arranged on the fixing block and the sliding block respectively in parallel; the transmission structure comprises a lead screw, a transmission block and a hand wheel, the lead screw penetrates through the base and is connected with the hand wheel at the end of the penetrating end, the transmission block is arranged on the lead screw and located in the base, the transmission block is connected with the sliding block, and the sliding block can be driven to move by rotating the hand wheel; the unloading force alarm structure sleeves the screw rod and is connected with the hand wheel and the base, and when the torque of the rotating hand wheel is greater than or equal to the set torque of the unloading force alarm structure, the unloading force alarm structure gives out an alarm prompt sound; a scale and a vernier scale of the display structure display the measured maximum inner diameter value of the braided pipe sleeve.

Description

Technical Field

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

[0002] In the aviation field, wire harnesses often need to be protected by outer braided sleeves, and it is necessary to select braided sleeves with appropriate inner diameters corresponding to the outer diameters of the wire harnesses. At present, the following methods are generally used to measure the maximum inner diameter of the braided sleeve: First, a vernier caliper is used. First, a special extended arm vernier caliper needs to be customized so that the extended arm has enough length to penetrate the braided sleeve, and the result of the vernier caliper measurement needs to be converted. Secondly, when using a vernier caliper to measure the braided sleeve, the process of unfolding the braided sleeve requires a certain amount of force support, and the size of the expansion depends on manpower. Therefore, the maximum inner diameter of the braided sleeve cannot be obtained stably and accurately; the second is to use a conical aperture gauge. Although the maximum inner diameter of the braided sleeve can be measured, in actual operation, when using a conical aperture gauge for measurement, the edge of the braided sleeve will naturally spread out due to the expansion, thereby affecting the accuracy of the measurement result. In addition, if there is a measurement requirement with a large diameter span at the same time, it is necessary to prepare aperture gauges of multiple size ranges and test them one by one to select the appropriate aperture gauge, which is cumbersome.

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

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

[0005] The embodiment of the present invention provides a device for measuring the maximum inner diameter of a braided sleeve, comprising a base, a measuring structure, a fixing structure, a transmission structure, a force unloading alarm structure and a display structure; The measuring structure comprises a fixed block, a slide rail and a sliding block, wherein the fixed block is arranged at one end of the top of the base, the slide rail is arranged perpendicular to the fixed block and at the top of the base, and the sliding block is arranged on the slide rail and parallel to the fixed block and can move along the slide rail relative to the fixed block; The fixing structure comprises a hook, a fixing column and a sliding column, the hook is multiple, the multiple hooks are fixed on the fixing block and the sliding block respectively, the fixing column and the sliding column are detachably installed in parallel on the hooks on the fixing block and the sliding block respectively; The transmission structure includes a screw rod, a transmission block and a hand wheel. The screw rod passes through the base and can rotate freely in the base. One end of the screw rod passes through the base and is connected to a 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. When the hand wheel is rotated to drive the screw rod to rotate in the base, the transmission block and the sliding block are driven to move. The 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 unloading alarm structure, the unloading alarm structure emits an alarm prompt sound; The display structure includes a scale and a vernier scale, wherein the scale is arranged on one side of the base, and the vernier scale is arranged on the corresponding side of the sliding block, and the scale and the vernier scale display the maximum inner diameter value of the measured braided sleeve; During measurement, the fixed column and the sliding column are detached from the hook, and after the fixed column and the sliding column are passed through the braided sleeve, the fixed column and the sliding column are respectively installed on the hooks on the fixed block and the sliding block, the handwheel is rotated to drive the screw rod to rotate, and the sliding block and the sliding column are driven by the transmission block to move away from the fixed block to open the braided sleeve. When the unloading alarm structure emits an alarm prompt sound, it indicates that the braided sleeve is opened to the maximum, and the maximum inner diameter value of the braided sleeve is read by the ruler in combination with the vernier ruler.

[0006] Preferably, the unloading alarm structure comprises a spring base, a torque disk, a torque adjusting slider and a torque adjusting disk which are coaxially arranged in sequence, the spring base is connected to the base, the torque adjusting disk is connected to the hand wheel, the torque adjusting slider is connected to the torque adjusting disk, and the set torque of the torque adjusting disk is set by adjusting the relative position of the torque adjusting slider and the torque adjusting disk; 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 arranged with a pin, one end of the torque disk abuts against the pin, and the other end is connected to the torque adjusting slider, when the torque of the hand wheel rotation is less than the set torque of the torque adjusting disk, the hand wheel and the screw rotate freely relative to the torque adjusting disk; when the torque of the hand wheel rotation is greater than or equal to the set torque of the torque adjusting disk, the torque adjusting disk drives the torque disk to rotate relative to the pin along with the rotation of the hand wheel, and the pin passes through the torque disk to emit an alarm prompt sound.

[0007] Preferably, the plurality of springs are arranged at equal intervals along the circumferential direction of the inner wall of the spring base; the end of the torque disk abutting against the ball is provided with arc-shaped protrusions at equal intervals along the circumferential direction; when the torque disk rotates relative to the ball, the ball passes through the arc-shaped protrusion of the torque disk and emits an alarm prompt sound.

[0008] Preferably, the torque adjustment disk is star-shaped, a torque gear scale is provided on the torque adjustment disk, a pointer is provided on the torque adjustment slider, and the torque gear of the torque adjustment disk is set by rotating the torque adjustment disk to adjust the torque gear scale indicated by the pointer.

[0009] 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 abutting against the pin is embedded in the spring base.

[0010] Preferably, a protrusion is provided on one side of the end of the torque disc away from the pin, and the torque adjustment slider and the torque disc are provided with a groove matching the protrusion, and the protrusion is embedded in the groove for matching connection to prevent the torque disc and the torque adjustment slider from rotating relative to each other.

[0011] Preferably, the base is a hollow structure, and positioning blocks are respectively provided at both ends of the base. The screw rod passes through the positioning blocks, and the screw rod can rotate freely in the positioning blocks.

[0012] Preferably, the hook is L-shaped, and the short sides of the hook installed on the fixed block and the short sides of the hook installed on the sliding block are arranged opposite to each other.

[0013] Preferably, there are two slide rails, and the two slide rails are arranged in parallel on both sides of the top of the base.

[0014] Preferably, a cover plate is provided at the end of the hand wheel away from the torque adjustment disk.

[0015] Compared with the prior art, the technical solution of the embodiment of the present invention has beneficial effects.

[0016] For example, a fixing device is provided to fix the fixed column and the sliding column passing through the braided sleeve in parallel to the fixed block and the movable block of the measuring module, and the sliding block is driven to move relative to the fixed block through the transmission structure, so as to realize the parallel opening of the braided sleeve and improve the accuracy of the measuring structure; a force unloading alarm structure is provided on the transmission structure, and a set torque is set on the force unloading alarm structure. When the torque of the rotating handwheel 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, and determines that the braided sleeve is opened to the maximum, so as to avoid damage to the braided sleeve due to excessive force during the opening process, or excessive opening causing deviation in the measurement result; the maximum inner diameter value of the braided sleeve is read by using the converted scale of the display structure in combination with the vernier scale, 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 needs of various braided sleeves. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present invention, not all embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0018] Figure 1 A schematic structural diagram of a device for measuring the maximum inner diameter of a braided sleeve provided in an embodiment of the present invention; Figure 2 A side view of a device for measuring the maximum inner diameter of a braided sleeve provided in an embodiment of the present invention; Figure 3 A cross-sectional view of a device for measuring the maximum inner diameter of a braided sleeve provided in an embodiment of the present invention; Figure 4 An exploded diagram of a force unloading alarm structure provided by an embodiment of the present invention; Figure 5 A schematic diagram of pointer indication of the force unloading alarm structure provided in an embodiment of the present invention.

[0019] 1. Base; 2. Fixed block; 3. Slide rail; 4. Sliding block; 5. Hook; 6. Fixed column; 7. Sliding column; 8. Screw rod; 9. Transmission block; 10. Handwheel; 11. Spring base; 12. Spring; 13. Pin; 14. Torque plate; 15. Torque adjustment slider; 16. Torque adjustment plate; 17. Pointer; 18. Torque gear scale; 19. Cover plate; 20. Braided sleeve; 21. Ruler; 22. Vernier ruler; 23. Positioning block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0022] 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.

[0023] Figure 1 A schematic structural diagram of a device for measuring the maximum inner diameter of a braided sleeve provided in an embodiment of the present invention; Figure 2 A side view of a device for measuring the maximum inner diameter of a braided sleeve provided in an embodiment of the present invention; Figure 3 A cross-sectional view of a device for measuring the maximum inner diameter of a braided sleeve provided in an embodiment of the present invention; Figure 4 An exploded diagram of a force unloading alarm structure provided by an embodiment of the present invention; Figure 5 A schematic diagram of pointer indication of the force unloading alarm structure provided in an embodiment of the present invention.

[0024] like Figure 1-Figure 5 As shown, a device for measuring the maximum inner diameter of a braided sleeve comprises a base 1, a measuring structure, a fixing structure, a transmission structure, a force unloading alarm structure and a display structure; The measuring structure includes a fixed block 2, a slide rail 3 and a sliding block 4. The fixed block 2 is arranged at one end of the top of the base 1. The slide rail 3 is arranged at the top of the base 1 perpendicular to the fixed block 2. The sliding block 4 is arranged on the slide rail 3 and is parallel to the fixed block 2 and can move along the slide rail 3 relative to the fixed block 2. The fixing structure includes a hook 5, a fixing column 6 and a sliding column 7. There are multiple hooks 5, and the multiple hooks 5 are fixed on the fixing block 2 and the sliding block 4 respectively. The fixing column 6 and the sliding column 7 are detachably installed in parallel on the hooks 5 on the fixing block 2 and the sliding block 4 respectively. The transmission structure includes a screw rod 8, a transmission block 9 and a hand wheel 10. The screw rod 8 passes through the base 1 and can rotate freely in the base 1. One end of the screw rod 8 passes through the base 1 and is connected to the hand wheel 10 at the end of the passing end. The transmission block 9 is arranged on the screw rod 8 and is located in the base 1. The transmission block 9 is connected to the sliding block 4. When the hand wheel 10 is rotated to drive the screw rod 8 to rotate in the base 1, the transmission block 9 and the sliding block 4 are driven to move. The unloading alarm structure is sleeved on the screw rod 8, connecting the hand wheel 10 and the base 1. When the torque of rotating the hand wheel 10 is greater than or equal to the set torque of the unloading alarm structure, the unloading alarm structure emits an alarm prompt sound; 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. During measurement, the fixed column 6 and the sliding column 7 are separated from the hook 5. After the fixed column 6 and the sliding column 7 are passed through the braided sleeve 20, the fixed column 6 and the sliding column 7 are respectively installed on the hook 5 on the fixed block 2 and the sliding block 4. The handwheel 10 is rotated to drive the screw rod 8 to rotate, and the sliding block 4 and the sliding column 7 are driven by the transmission block 9 to move away from the fixed block 2 to open the braided sleeve 20. When the unloading alarm structure emits an alarm prompt sound, it indicates that the braided sleeve 20 is opened to the maximum. The maximum inner diameter value of the braided sleeve 20 is read by the scale 21 in cooperation with the vernier scale 22.

[0025] 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.

[0026] In some embodiments, the unloading alarm structure includes a spring base 11, a torque disk 14, a torque adjustment slider 15 and a torque adjustment disk 16 which are coaxially arranged in sequence. The spring base 11 is connected to the base 1, the torque adjustment disk 16 is connected to the handwheel 10, and the torque adjustment slider 15 is connected to the torque adjustment disk 15. The set torque of the torque adjustment disk 16 is set by adjusting the relative position of the torque adjustment slider 15 and the torque adjustment disk 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 arranged with a ball 13, one end of the torque disk 14 abuts against the ball 13, and the other end is connected to the torque adjustment slider 15, when the torque of the handwheel 10 rotating is less than the set torque of the torque adjustment disk 16, the handwheel 10 and the screw 8 rotate freely relative to the torque adjustment disk 16; when the torque of the handwheel 10 rotating is greater than or equal to the set torque of the torque adjustment disk 16, the torque adjustment disk 16 rotates with the handwheel 10 to drive the torque disk 14 to rotate relative to the ball 13, and the ball 13 passes through the torque disk 14 to issue an alarm prompt sound.

[0027] In some embodiments, multiple springs 12 are arranged at equal intervals along the circumferential direction of the inner wall of the spring base 11; the end of the torque disk 14 abutting against the ball 13 is provided with arc-shaped protrusions at equal intervals along the circumferential direction; when the torque disk 14 rotates relative to the ball 13, the ball 13 passes through the arc-shaped protrusion of the torque disk 14 and an alarm prompt sound is issued.

[0028] In some embodiments, the torque adjustment disk 16 is star-shaped, which is convenient for rotating the torque adjustment disk 16 to adjust the relative position of the torque adjustment slider 15 and the torque adjustment disk 16, and then setting the set torque of the torque adjustment disk 16. A torque gear scale 18 is set on the torque adjustment disk 16, and a pointer 17 is set on the torque adjustment slider 15. The torque gear of the torque adjustment disk 16 is set by rotating the torque adjustment disk 16 to adjust the torque gear scale 18 indicated by the pointer 17.

[0029] In a specific implementation, the torque adjustment disk 16 has 6 torque gears that can be adjusted to meet different torque requirements of the braided sleeve 20 when it is stretched to the maximum state.

[0030] 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 abutting against the pin 13 is embedded in the spring base 11 .

[0031] In some embodiments, a protrusion is provided on one side of the end of the torque disc 14 away from the pin 13, and the torque adjustment slider 15 and the torque disc 14 are provided with a groove matching the protrusion. The protrusion is embedded in the groove for matching connection to prevent the torque disc 14 and the torque adjustment slider 15 from rotating relative to each other.

[0032] 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 screw rod 8 passes through the positioning blocks 23, and the screw rod 8 can rotate freely in the positioning blocks 23.

[0033] 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 short sides of the hook 5 installed on the sliding block 4 are arranged opposite to each other.

[0034] 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 .

[0035] In some embodiments, a cover plate 19 is provided at the end of the hand wheel 10 away from the torque adjustment disk 16 .

[0036] To summarize, the maximum inner diameter measuring device of the braided sleeve of the embodiment of the present invention is provided with a fixing device to fix the fixed column 6 and the sliding column 7 passing through the braided sleeve 20 in parallel to the fixed block 2 and the movable block 4 of the measuring module, and the sliding block 4 is driven by the transmission structure to move relative to the fixed block 2, so as to realize the parallel opening of the braided sleeve 20 and improve the accuracy of the measuring structure; a force unloading alarm structure is provided on the transmission structure, and a set torque is set on the force unloading alarm structure. When the torque of the rotating hand wheel 10 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, and it is determined that the braided sleeve 20 is opened to the maximum, so as to avoid the braided sleeve 20 being damaged or over-opened due to excessive force during the opening process, resulting in deviation in the measurement result; the maximum inner diameter value of the braided sleeve 20 is read by the converted scale 21 of the display structure in cooperation with the vernier scale 22, 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 20.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these 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 device for measuring 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 force unloading alarm structure and a display structure; The measuring structure comprises a fixed block, a slide rail and a sliding block, wherein the fixed block is arranged at one end of the top of the base, the slide rail is arranged perpendicular to the fixed block and at the top of the base, and the sliding block is arranged on the slide rail and parallel to the fixed block and can move along the slide rail relative to the fixed block; The fixing structure comprises a hook, a fixing column and a sliding column, the hook is multiple, the multiple hooks are fixed on the fixing block and the sliding block respectively, the fixing column and the sliding column are detachably installed in parallel on the hooks on the fixing block and the sliding block respectively; The transmission structure includes a screw rod, a transmission block and a hand wheel. The screw rod passes through the base and can rotate freely in the base. One end of the screw rod passes through the base and is connected to a 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. When the hand wheel is rotated to drive the screw rod to rotate in the base, the transmission block and the sliding block are driven to move. The 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 unloading alarm structure, the unloading alarm structure emits an alarm prompt sound; The display structure includes a scale and a vernier scale, wherein the scale is arranged on one side of the base, and the vernier scale is arranged on the corresponding side of the sliding block, and the scale and the vernier scale display the maximum inner diameter value of the measured braided sleeve; During measurement, the fixed column and the sliding column are detached from the hook, and after the fixed column and the sliding column are passed through the braided sleeve, the fixed column and the sliding column are respectively installed on the hooks on the fixed block and the sliding block, the handwheel is rotated to drive the screw rod to rotate, and the sliding block and the sliding column are driven by the transmission block to move away from the fixed block to open the braided sleeve. When the unloading alarm structure emits an alarm prompt sound, it indicates that the braided sleeve is opened to the maximum, and the maximum inner diameter value of the braided sleeve is read by the ruler in combination with the vernier ruler.

2. The device for measuring the maximum inner diameter of a braided sleeve according to claim 1, characterized in that: The unloading alarm structure comprises a spring base, a torque disk, a torque adjusting slider and a torque adjusting disk which are coaxially arranged in sequence, the spring base is connected to the base, the torque adjusting disk is connected to the hand wheel, the torque adjusting slider is connected to the torque adjusting disk, and the set torque of the torque adjusting disk is set by adjusting the relative position of the torque adjusting slider and the torque adjusting disk; 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 arranged with a pin, one end of the torque disk abuts against the pin, and the other end is connected to the torque adjusting slider, when the torque of the hand wheel rotation is less than the set torque of the torque adjusting disk, the hand wheel and the screw rod rotate freely relative to the torque adjusting disk; when the torque of the hand wheel rotation is greater than or equal to the set torque of the torque adjusting disk, the torque adjusting disk drives the torque disk to rotate relative to the pin along with the rotation of the hand wheel, and the pin passes through the torque disk to emit an alarm prompt sound.

3. The device for measuring the maximum inner diameter of a braided sleeve according to claim 2, characterized in that: The plurality of springs are arranged at equal intervals along the circumferential direction of 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 along the circumferential direction; when the torque disc rotates relative to the ball, the ball passes through the arc-shaped protrusion of the torque disc and emits an alarm prompt sound.

4. The device for measuring the maximum inner diameter of a braided sleeve according to claim 2, characterized in that: The torque adjustment disk is star-shaped, and a torque gear scale is arranged on the torque adjustment disk. A pointer is arranged on the torque adjustment slider. The torque gear of the torque adjustment disk is set by rotating the torque adjustment disk to adjust the torque gear scale indicated by the pointer.

5. The device for measuring the maximum inner diameter of a 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 pin is embedded in the spring base.

6. The device for measuring the maximum inner diameter of a braided sleeve according to claim 2, characterized in that: A protrusion is provided on one side of the end of the torque disc away from the pin, and the torque adjustment slider and the torque disc are provided with a groove matching the protrusion. The protrusion is embedded in the groove for matching connection to prevent the torque disc and the torque adjustment slider from rotating relative to each other.

7. The device for measuring the maximum inner diameter of a braided sleeve according to claim 1, characterized in that: The base is a hollow structure, and positioning blocks are respectively arranged at both ends of the base. The screw rod passes through the positioning blocks, and the screw rod can rotate freely in the positioning blocks.

8. The device for measuring the maximum inner diameter of a 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 short sides of the hook installed on the sliding block are arranged opposite to each other.

9. The device for measuring the maximum inner diameter of a braided sleeve according to claim 1, characterized in that: 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 device for measuring the maximum inner diameter of a braided sleeve according to claim 1, characterized in that: A cover plate is provided at the end of the hand wheel away from the torque adjustment disk.

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