Visual precision-adjustable intelligent sleeve

Abstract

A visual precision-adjustable intelligent sleeve comprises an upper connector and a lower connector located under the upper connector, an upper clamping hole is formed in the center of the upper surface of the upper connector, a lower clamping hole is formed in the center of the lower surface of the lower connector, and the inner wall of the lower clamping hole is composed of six limiting planes evenly distributed in the circumferential direction; every two adjacent limiting planes are connected through an arc-shaped anti-collision groove; a hidden groove is formed in the center of the limiting plane on the right side; a limiting block matched with the hidden groove is arranged in the hidden groove; symmetrical guide grooves are formed in the inner walls of the upper side and the lower side of the hidden groove; guide wings matched with the guide grooves are arranged on the outer walls of the upper side and the lower side of the limiting block. According to the visual precision-adjustable intelligent sleeve, the head of a bolt can be prevented from slipping under the condition that the inner wall of the lower clamping hole is abraded, the precision of torsion is guaranteed, and meanwhile the use cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to an intelligent sleeve, in particular to a visual precision-adjustable intelligent sleeve. Background Art

[0002] In bolted connections, only appropriate preload can ensure reliable bolt connection, and preload is indirectly achieved by controlling the torque or angle applied to the bolt. The smart sleeve can directly display the current torque size through the display screen, and the user can directly observe the real-time data visually, effectively ensuring the accuracy of the torque, thereby effectively ensuring the quality of the bolted connection.

[0003] In the actual bolt connection process, the lower clamping hole of the smart sleeve will be clamped outside the head of the bolt, and the upper clamping hole of the smart sleeve will be clamped with a corresponding wrench or other rotating device. As the wrench or other rotating device drives the smart sleeve to rotate, the bolt clamped with the lower clamping hole of the smart sleeve will rotate accordingly, thereby realizing the connection of the bolt. In the process of the smart sleeve rotating the bolt for a long time, the head of the bolt will continuously rub against the lower clamping hole of the smart sleeve, and the hardness of the bolt is extremely high, so it is very easy to cause wear of the inner wall of the lower clamping hole of the smart sleeve. When the inner wall of the lower clamping hole of the smart sleeve is worn, it is very easy to cause The slippage of the head of the raw bolt causes the data displayed on the display screen of the smart sleeve to become inaccurate, and the accuracy of the current torque cannot be guaranteed. The bolt has sharp corners. If the head of the bolt slips in the lower clamping hole of the smart sleeve, the wear of the inner wall of the lower clamping hole of the smart sleeve will be aggravated, causing the slipping problem to become more and more serious. Finally, the lower clamping hole of the smart sleeve cannot engage with the head of the bolt at all. Even if the smart sleeve rotates, the bolt cannot rotate synchronously with it, which eventually leads to the scrapping of the smart sleeve. At this time, the entire smart sleeve can only be replaced, resulting in increased usage costs. Summary of the invention

[0004] The utility model aims to solve the existing technical problem and provide a visual precision-adjustable intelligent sleeve, which can prevent the bolt head from slipping when the inner wall of the lower clamping hole is worn, ensure the torque accuracy, and effectively reduce the use cost.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] The utility model discloses a visual precision-adjustable intelligent sleeve, comprising an upper connector and a lower connector located directly below the upper connector, wherein an upper clamping hole is provided at the center of the upper surface of the upper connector, and a lower clamping hole is provided at the center of the lower surface of the lower connector, wherein the inner wall of the lower clamping hole is composed of 6 limiting planes uniformly distributed in a circle; adjacent limiting planes are connected by an arc-shaped anti-collision groove; a hidden groove is provided at the center of the limiting plane on the right side; a limiting block matching the same is provided in the hidden groove; mutually symmetrical guide grooves are provided on the inner walls on the upper and lower sides of the hidden groove; and mutually symmetrical guide grooves are provided on the outer walls on the upper and lower sides of the limiting block. Guide wing; an adjustment groove corresponding to the position of the hidden groove is provided on the right outer wall of the lower part of the lower connecting head; a rotating hole communicating with the hidden groove is provided at the center of the bottom of the adjustment groove; a screw hole communicating with the rotating hole is provided at the center of the limit block; a screw rod is threaded in the screw hole; a limiting ring matching with it is threaded in the notch at the right end of the adjustment groove; the right end of the screw rod passes through the rotating hole to the right and is provided with a rotating head located between the bottom of the adjustment groove and the left side wall of the limiting ring; a regular hexagonal locking hole is provided at the center of the right side wall of the rotating head; the left end opening of the inner hole of the limiting ring encloses the right end opening of the locking hole.

[0007] A non-slip pad is provided in the left notch of the hidden groove and fits with the left side wall of the limit block, and the non-slip pad is made of rubber; the left side wall of the non-slip pad is coplanar with the limit plane on the right side; and limit parts matching the guide groove are provided on the upper and lower sides of the outer wall of the non-slip pad.

[0008] The inner hole of the limiting ring is in a regular hexagon.

[0009] A slot is provided at the inner edge of the lower surface of the lower connecting head, which corresponds to the position of the limiting plane on the left side; a notch is provided on the limiting plane on the left side, which is connected to the slot, and the width of the notch is smaller than the width of the slot; a replacement part matching it is provided in the slot; a replacement block matching the notch is provided at the center of the right side wall of the replacement part; a limiting hole is provided at the center of the left side wall of the replacement part; a fixing hole connecting to the limiting hole is provided on the left outer wall of the lower part of the lower connecting head; a limiting screw matching it is threaded in the fixing hole, and the right side wall of the head of the limiting screw is in contact with the left outer wall of the lower part of the lower connecting head; the right end of the limiting screw penetrates into the limiting hole to the right and presses against the bottom of the limiting hole.

[0010] A slot is provided at the lower part of the right side wall of the replacement block.

[0011] The beneficial effects of the utility model are:

[0012] Compared with the prior art, an arc-shaped anti-collision groove is passed between adjacent limiting planes in the lower clamping hole of the visualized precision-adjustable smart sleeve of the utility model structure, so the six corners of the bolt head are just in the anti-collision groove, and the six corners of the bolt head will not contact the limiting plane on any side of the lower clamping hole, avoiding the situation where the six corners of the bolt head are too sharp and cause wear of the inner wall of the lower clamping hole. When the bolt head slips when the smart sleeve rotates, the limiting plane on the right side can be replaced by the left side wall of the limiting block to fit with the right side plane of the outer wall of the bolt head, and the left side plane of the outer wall of the bolt head can be pressed on the limiting plane on the left side. At this time, the limiting plane on the left side and the left side wall of the limiting block can simultaneously limit the two planes of the outer wall of the bolt head, and the clamping of the lower clamping hole and the bolt head is realized again, ensuring the normal operation of the smart sleeve, thereby avoiding the slipping of the bolt head when the inner wall of the lower clamping hole is worn, ensuring the accuracy of torque, and effectively reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model of a visualized precision-adjustable intelligent sleeve;

[0014] Figure 2 yes Figure 1 An enlarged view of part A;

[0015] Figure 3 yes Figure 1 An enlarged view of part B;

[0016] Figure 4 It is a structural schematic diagram of the utility model of a visualized precision-adjustable intelligent sleeve. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] See also Figures 1 to 4The utility model provides a visual precision adjustable intelligent sleeve, comprising an upper connector 1 and a lower connector 2 located directly below the upper connector 1. An upper clamping hole 3 is provided at the center of the upper surface of the upper connector 1, and a lower clamping hole 4 is provided at the center of the lower surface of the lower connector 2. The inner wall of the lower clamping hole 4 is composed of 6 limiting planes 5 evenly distributed in a circle; adjacent limiting planes 5 are connected by an arc-shaped anti-collision groove 6; a hidden groove 7 is provided at the center of the limiting plane 5 on the right side; a limiting block 8 matching the hidden groove 7 is provided in the hidden groove 7; mutually symmetrical guide grooves 9 are provided on the inner walls on the upper and lower sides of the hidden groove 7; guide wings 10 matching the guide grooves 9 are provided on the outer walls on the upper and lower sides of the limiting block 8; the lower connector An adjusting groove 11 corresponding to the position of the hidden groove 7 is provided on the outer wall on the right side of the lower part of the head 2; a rotating hole 12 communicating with the hidden groove 7 is provided at the center of the bottom of the adjusting groove 11; a screw hole 13 communicating with the rotating hole 12 is provided at the center of the limiting block 8; a screw rod 14 is threaded in the screw hole 13; a limiting ring 15 matching with it is threaded in the notch at the right end of the adjusting groove 11; the right end of the screw rod 14 passes through the rotating hole 12 to the right and is provided with a rotating head 16 located between the bottom of the adjusting groove 11 and the left side wall of the limiting ring 15; a regular hexagonal locking hole 17 is provided at the center of the right side wall of the rotating head 16; the left end hole opening of the inner hole of the limiting ring 15 encloses the right end hole opening of the locking hole 17.

[0019] A non-slip pad 18 is provided in the left notch of the hidden groove 7 and fits with the left side wall of the limit block 8. The non-slip pad 18 is made of rubber. The left side wall of the non-slip pad 18 is coplanar with the limit plane 5 located on the right side. Limiting parts 27 matching the guide groove 9 are provided on the upper and lower sides of the outer wall of the non-slip pad 18.

[0020] The inner hole of the limiting ring 15 is in the shape of a regular hexagon.

[0021] A slot 19 corresponding to the position of the limiting plane 5 on the left is provided on the inner edge of the lower surface of the lower connecting head 2; a notch 20 intersecting the slot 19 is provided on the limiting plane 5 on the left, and the width of the notch 20 is smaller than the width of the slot 19; a replacement part 21 matching it is provided in the slot 19; a replacement block 22 matching the notch 20 is provided at the center of the right side wall of the replacement part 21; a limiting hole 23 is provided at the center of the left side wall of the replacement part 21; a fixing hole 24 intersecting the limiting hole 23 is provided on the left outer wall of the lower part of the lower connecting head 2; a limiting screw 25 matching it is screwed into the fixing hole 24, and the right side wall of the head of the limiting screw 25 is in contact with the left outer wall of the lower part of the lower connecting head 2; the right end of the limiting screw 25 penetrates into the limiting hole 23 to the right and presses against the bottom of the limiting hole 23.

[0022] A slot 26 is provided at the lower portion of the right side wall of the replacement block 22 .

[0023] The method of using the utility model is as follows:

[0024] When the bolt needs to be rotated by the smart sleeve, the lower clamping hole 4 can be sleeved outside the head of the bolt. At this time, the six circumferentially evenly distributed limiting planes 5 in the lower clamping hole 4 are respectively fitted with the six planes of the outer wall of the bolt head. Since an arc-shaped anti-collision groove 6 is passed between adjacent limiting planes 5, the six corners of the bolt head are just in the anti-collision groove 6, and the six corners of the bolt head will not contact the limiting plane 5 on any side of the lower clamping hole 4, so as to avoid the six corners of the bolt head from being too sharp and causing the lower clamping. In the case where the inner wall of hole 4 is worn, the engagement between the lower clamping hole 4 and the bolt head is mainly achieved by the plane fit between the limiting plane 5 and the outer wall of the bolt head. When the engaging end of the wrench or rotating device matching the smart sleeve is clamped in the upper clamping hole 3, the upper connecting head 1 can be rotated by the wrench or the rotating device. When the upper connecting head 1 rotates, the lower connecting head 2 rotates synchronously, thereby realizing the rotation of the limiting plane 5. At this time, the limiting plane 5 will rotate the bolt head through the plane of the outer wall of the bolt head to realize the rotation of the bolt.

[0025] If the limiting plane 5 and the six planes of the outer wall of the bolt head are worn due to long-term friction, the limiting plane 5 cannot fit tightly with the plane of the outer wall of the bolt head, and the gap between the limiting plane 5 and the plane of the bolt head opposite to it becomes larger, which eventually causes the bolt head to slip when the smart sleeve rotates. At this time, one end of the hexagonal wrench matching the positioning hole 17 can be inserted into the positioning hole 17 through the inner hole of the limiting ring 15, while the other end of the hexagonal wrench used for rotation is outside the smart sleeve, and the user can easily rotate it to realize the rotation of the hexagonal wrench. When the hexagonal wrench rotates, since the positioning hole 17 is engaged with one end of the hexagonal wrench, the synchronous rotation of the rotating head 16 can be effectively realized. When the rotating head 16 rotates, the screw 14 rotates accordingly, and the screw 14 and the limiting The screw hole 13 at the center of the block 8 is screwed together, and the guide wings 10 on the upper and lower sides of the limit block 8 match the guide grooves 9 on the upper and lower inner walls of the hidden groove 7. Under the limiting guidance of the guide grooves 9, the limit block 8 can convert the force of the rotation of the screw 14 into its own translation force to realize its own left and right movement. As the limit block 8 continues to move to the left, the limit block 8 will move out of the hidden groove 7. As the limit block 8 continues to move to the left, the left side wall of the limit block 8 will eventually replace the limiting plane 5 on the right to fit the right plane of the outer wall of the bolt head, and at the same time, the left plane of the outer wall of the bolt head is pressed onto the limiting plane 5 on the left. At this time, the limiting plane 5 on the left and the left side wall of the limit block 8 can simultaneously limit the two planes of the outer wall of the bolt head, and realize the engagement of the lower clamping hole 4 with the bolt head again, thereby ensuring the normal operation of the smart sleeve.

[0026] A non-slip pad 18 is provided in the left notch of the hidden groove 7 and fits with the left side wall of the limit block 8. The non-slip pad 18 is made of rubber. The left side wall of the non-slip pad 18 is coplanar with the limiting plane 5 located on the right side. Limiting parts 27 matching the guide groove 9 are provided on the upper and lower sides of the outer wall of the non-slip pad 18. The presence of the non-slip pad 18 can replace a part of the limiting plane 5 located on the right side, thereby increasing the friction between the limiting plane 5 and the plane of the outer wall of the bolt head through the non-slip pad 18, thereby further improving the stability of the smart sleeve when rotating the bolt head.

[0027] The inner hole of the limiting ring 15 is in a regular hexagonal shape, so that the end of the hexagonal wrench can be clamped in the inner hole of the limiting ring 15, which is beneficial to the rotation of the limiting ring 15 and thus facilitates the disassembly and assembly of the limiting ring 15.

[0028] A slot 19 corresponding to the position of the limiting plane 5 on the left is provided on the inner edge of the lower surface of the lower connecting head 2, and a notch 20 intersecting with the slot 19 is provided on the limiting plane 5 on the left, and the width of the notch 20 is smaller than the width of the slot 19, and a replacement part 21 matching therewith is provided in the slot 19, and a replacement block 22 matching with the notch 20 is provided in the center of the right side wall of the replacement part 21, and a limiting hole 23 is provided in the center of the left side wall of the replacement part 21, and a fixing hole 24 intersecting with the limiting hole 23 is provided on the left outer wall of the lower part of the lower connecting head 2, and a limiting screw 25 matching therewith is screwed in the fixing hole 24, and the right side wall of the head of the limiting screw 25 fits with the left outer wall of the lower part of the lower connecting head 2, and the limiting screw The right end of 25 is inserted into the limiting hole 23 to the right and pressed against the bottom of the limiting hole 23. The right side wall of the replacement block 22 can effectively replace a part of the limiting plane 5 on the left. When the right side wall of the replacement block 22 is worn, the replacement block 22 can be directly replaced to ensure that the left plane of the outer wall of the bolt head can still be limited by the right side wall of the new replacement block 22, thereby ensuring the stability of the bolt when it is engaged in the lower clamping hole 4. When the replacement block 22 needs to be replaced, the limiting screw 25 can be rotated to make the right end of the limiting screw 25 move to the left and leave the limiting hole 23. At this time, the replacement block 22 can be slid out from under the notch along the trajectory of the notch 20, so that the replacement block 22 can be quickly disassembled, thereby effectively ensuring the replacement efficiency.

[0029] A slot 26 is provided at the lower part of the right side wall of the replacement block 22. The replacement block 22 can be pulled by hooking a hook-shaped member in the slot 26, thereby further increasing the speed at which the replacement block 22 slides out of the notch 20 and further improving the replacement efficiency.

Claims

1. A visual precision adjustable smart sleeve, comprising an upper connector and a lower connector located directly below the upper connector, wherein an upper clamping hole is provided at the center of the upper surface of the upper connector, and a lower clamping hole is provided at the center of the lower surface of the lower connector, and characterized in that: The inner wall of the lower clamping hole is composed of 6 limiting planes evenly distributed in a circle; adjacent limiting planes are connected by an arc-shaped anti-collision groove; a hidden groove is provided at the center of the limiting plane on the right; a limiting block matching it is provided in the hidden groove; symmetrical guide grooves are provided on the upper and lower inner walls of the hidden groove; guide wings matching the guide grooves are provided on the upper and lower outer walls of the limiting block; an adjustment groove corresponding to the position of the hidden groove is provided on the right outer wall of the lower part of the lower connector; the adjustment A rotating hole communicating with the hidden groove is provided at the center of the bottom of the section groove; a screw hole communicating with the rotating hole is provided at the center of the limit block; a screw rod is threaded in the screw hole; a limit ring matching with it is threaded in the notch at the right end of the adjusting groove; the right end of the screw rod passes through the rotating hole to the right and is provided with a rotating head located between the bottom of the adjusting groove and the left side wall of the limit ring; a regular hexagonal locking hole is provided at the center of the right side wall of the rotating head; the left end opening of the inner hole of the limit ring encloses the right end opening of the locking hole.

2. The visual precision adjustable smart sleeve according to claim 1, characterized in that: A non-slip pad is provided in the left notch of the hidden groove and fits with the left side wall of the limit block, and the non-slip pad is made of rubber; the left side wall of the non-slip pad is coplanar with the limit plane on the right side; and limit parts matching the guide groove are provided on the upper and lower sides of the outer wall of the non-slip pad.

3. The visual precision adjustable smart sleeve according to claim 1 is characterized by: The inner hole of the limiting ring is in a regular hexagon.

4. The visual precision-adjustable smart sleeve according to claim 1 is characterized by: A slot is provided at the inner edge of the lower surface of the lower connecting head, which corresponds to the position of the limiting plane on the left side; a notch is provided on the limiting plane on the left side, which is connected to the slot, and the width of the notch is smaller than the width of the slot; a replacement part matching it is provided in the slot; a replacement block matching the notch is provided at the center of the right side wall of the replacement part; a limiting hole is provided at the center of the left side wall of the replacement part; a fixing hole connecting to the limiting hole is provided on the left outer wall of the lower part of the lower connecting head; a limiting screw matching it is threaded in the fixing hole, and the right side wall of the head of the limiting screw is in contact with the left outer wall of the lower part of the lower connecting head; the right end of the limiting screw penetrates into the limiting hole to the right and presses against the bottom of the limiting hole.

5. The visual precision adjustable smart sleeve according to claim 4 is characterized by: A slot is provided at the lower part of the right side wall of the replacement block.

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