CN211144602U - Anti-drop's engine oil drain bolt - Google Patents
Anti-drop's engine oil drain bolt Download PDFInfo
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- CN211144602U CN211144602U CN201922101755.1U CN201922101755U CN211144602U CN 211144602 U CN211144602 U CN 211144602U CN 201922101755 U CN201922101755 U CN 201922101755U CN 211144602 U CN211144602 U CN 211144602U
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Abstract
An anti-drop engine oil drain bolt comprises a bolt body, a bolt head arranged at the upper end of the bolt body and a hexagonal clamping groove arranged at the center of the upper surface of the bolt head, wherein external threads are arranged on the outer wall of the upper part and the outer wall of the lower part of the bolt body; a fastening cavity is arranged in the screw body; the middle part of the fastening cavity is provided with a pushing block which is in a round table shape with a wide upper part and a narrow lower part, and the outer wall of the pushing block is a conical surface; the outer wall of the middle part of the screw body is provided with a plurality of fastening holes which are uniformly distributed in the circumferential direction and are communicated with the fastening cavities; a fastening column is arranged in the fastening hole and is matched with the fastening hole through a resetting device; the outer end of the fastening column is flush with the hole opening at the outer end of the fastening hole, and the inner end of the fastening column penetrates into the fastening cavity and is attached to the conical surface. The utility model discloses an anti-drop's engine oil drain bolt can guarantee to fasten all the time in the grease proofing downthehole of engine under the condition of engine vibrations by itself, avoids appearing because the not hard up condition that leads to the oil drain hole to open of oil drain bolt.
Description
Technical Field
The utility model relates to a bolt, especially an anti-drop's engine oil drain bolt.
Background
The bolt is a fastener matched with a screw hole or a nut with internal threads, the bolt is used for fixing between two parts or sealing the screw hole, the engine oil drain bolt is a bolt, the engine oil drain bolt is in threaded connection with the oil drain hole of an engine, when oil in the engine needs to be drained, the engine oil drain bolt can be screwed out of the oil drain hole, the oil drain hole is in an open state, and a worker can drain the oil through the oil drain hole.
When the engine runs, the self can be unavoidable the condition of vibrations appear, and the spiro union then can receive the influence of shaking force in the oil drain bolt in the oil drain hole, and when the oil drain bolt vibrations, the oil drain bolt is very easily outwards not hard up along the internal thread orbit of oil drain hole, and when serious, can break away from and go out from in the oil drain hole completely even, leads to the oil drain hole to be opened, has serious potential safety hazard.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an anti-drop's engine oil drain bolt, it can guarantee itself to fasten all the time under the condition of engine vibrations in the grease proofing hole of engine, avoids appearing because the not hard up condition that leads to the oil drain hole to open of oil drain bolt.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses an anti-drop's engine oil drain bolt, including the spiral shell body, locate the spiral shell head of spiral shell body upper end and locate the hexagonal draw-in groove at spiral shell head upper surface center, its characterized in that: the outer wall of the upper part and the outer wall of the lower part of the screw body are both provided with external threads; a fastening cavity is arranged in the screw body; the middle part of the fastening cavity is provided with a pushing block which is in a round table shape with a wide upper part and a narrow lower part, and the outer wall of the pushing block is a conical surface; the outer wall of the middle part of the screw body is provided with a plurality of fastening holes which are uniformly distributed in the circumferential direction and are communicated with the fastening cavities; a fastening column is arranged in the fastening hole and is matched with the fastening hole through a resetting device; the outer end of the fastening column is flush with the hole at the outer end of the fastening hole, and the inner end of the fastening column penetrates into the fastening cavity and is attached to the conical surface; the pushing block is provided with a guide hole penetrating through the pushing block; the upper surface of the pushing block is provided with a guide post corresponding to the position of the guide hole; a stroke hole communicated with the guide hole is formed in the guide column, and the stroke hole is coaxial with the guide hole; a guide rod is arranged in the center of the cavity wall at the lower side of the fastening cavity; the upper end of the guide rod upwards penetrates through the guide hole and penetrates into the stroke hole, and a movable space is formed between the end surface of the upper end of the guide rod and the wall of the upper side hole of the stroke hole; a first spring sleeved outside the guide rod is arranged between the lower surface of the push block and the lower side cavity wall of the fastening cavity; and the screw head is provided with a pressing device connected with the guide post.
The reset device comprises sliding chutes arranged on the inner walls of the upper side and the lower side of the fastening hole; the outer walls of the upper side and the lower side of the push block are provided with sliding blocks matched with the sliding grooves, and the sliding blocks are attached to the groove wall of one side, adjacent to the fastening cavity, of the sliding grooves; and a second spring is arranged between the slide block and the groove wall of one side of the slide groove far away from the fastening cavity.
The pressing device comprises a lifting cavity arranged in the screw head; the lifting cavity is communicated with the fastening cavity through a pressing hole, and the diameter of the pressing hole is smaller than that of the guide column; a pressing rod matched with the pressing hole is arranged in the pressing hole; the lower end of the pressing rod is connected to the end face of the upper end of the guide column, and the upper end of the pressing rod penetrates upwards into the lifting cavity and is provided with a pressing plate which is attached to the upper side cavity wall of the lifting cavity; the upper surface of the screw head is provided with an annular lifting groove, the hexagonal clamping groove is enclosed by the lifting groove, and the lifting groove is communicated with the lifting cavity; a pressing pipe matched with the lifting groove extends upwards from the outer edge of the pressing plate; the upper end of the pressing pipe extends out of the lifting groove; the pressing pipe and the screw head are fixed through a limiting device.
The limiting device comprises a plurality of fixing blocks which are uniformly distributed on the upper surface of the screw head in a circumferential manner, and the fixing blocks surround the pressing pipe; the pressing pipe is provided with a plurality of limiting holes which are uniformly distributed in the longitudinal direction; a transverse screw hole is formed in the side wall of the fixing block, opposite to the limiting hole; a limit screw penetrates through one of the limit holes and is in threaded connection with the transverse screw hole, and the pressing pipe and the fixing block are fixed through the limit screw.
The end face of the outer end of the fastening column is provided with a locking pad; the side wall of the outer side of the anti-loosening pad is provided with a plurality of anti-loosening teeth which are uniformly distributed, and the anti-loosening teeth are in an isosceles trapezoid shape; the anti-loosening cushion and the anti-loosening teeth are made of rubber.
The utility model has the advantages that:
compared with the prior art, adopt the utility model discloses anti-drop's engine oil drain bolt of structure can make the fastening post move outward through the mode of pressing the pressure pipe downwards in the oil drain of engine after the oil drain bolt spiro union, and the fastening post after moving outward just can sticis on the oil drain internal thread, further improves oil drain bolt's fastening nature, effectively avoids oil drain bolt to receive the vibrating force influence the not hard up condition of appearance, guarantees oil drain bolt spiro union in the fastening nature in the oil drain, effectively stops the potential safety hazard.
Drawings
FIG. 1 is a schematic structural view of the anti-drop engine oil drain bolt of the present invention;
FIG. 2 is an enlarged view of section A of FIG. 1;
fig. 3 is an enlarged view of a portion B of fig. 1.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 to 3, the utility model provides an anti-drop engine oil drain bolt, which comprises a bolt body 1, a bolt head 2 arranged at the upper end of the bolt body 1 and a hexagonal clamping groove 3 arranged at the center of the upper surface of the bolt head 2, wherein the outer walls of the upper part and the lower part of the bolt body 1 are both provided with external threads 4; a fastening cavity 5 is arranged in the screw body 1; a pushing block 6 is arranged in the middle of the fastening cavity 5, the pushing block 6 is in a circular truncated cone shape with a wide upper part and a narrow lower part, and the outer wall of the pushing block 6 is a conical surface 601; the outer wall of the middle part of the screw body 1 is provided with a plurality of fastening holes 7 which are uniformly distributed in the circumferential direction, and the fastening holes 7 are communicated with the fastening cavity 5; a fastening column 8 is arranged in the fastening hole 7, and the fastening column 8 is matched with the fastening hole 7 through a resetting device; the outer end of the fastening column 8 is flush with the orifice at the outer end of the fastening hole 7, and the inner end of the fastening column 8 penetrates into the fastening cavity 5 and is attached to the conical surface 601; the pushing block 6 is provided with a guide hole 9 penetrating through the pushing block; the upper surface of the pushing block 6 is provided with a guide post 10 corresponding to the position of the guide hole 9; a stroke hole 11 communicated with the guide hole 9 is formed in the guide column 10, and the stroke hole 11 is coaxial with the guide hole 9; a guide rod 12 is arranged at the center of the lower side cavity wall of the fastening cavity 5; the upper end of the guide rod 12 upwards penetrates through the guide hole 9 and penetrates into the stroke hole 11, and a movable space is formed between the end surface of the upper end of the guide rod 12 and the wall of the upper side hole of the stroke hole 11; a first spring 13 sleeved outside the guide rod 12 is arranged between the lower surface of the pushing block 6 and the lower side cavity wall of the fastening cavity 5; and a pressing device connected with the guide post 10 is arranged on the screw head 2.
The resetting device comprises sliding chutes 14 arranged on the inner walls of the upper side and the lower side of the fastening hole 7; the outer walls of the upper side and the lower side of the push block 6 are provided with sliding blocks 15 matched with the sliding grooves 14, and the sliding blocks 15 are attached to the groove wall of one side, adjacent to the fastening cavity 5, of the sliding grooves 14; a second spring 16 is arranged between the slide block 15 and the groove wall of the slide groove 14 at one side far away from the fastening cavity.
The pressing device comprises a lifting cavity 17 arranged in the screw head 2; the lifting cavity 17 is communicated with the fastening cavity 5 through a pressing hole 18, and the diameter of the pressing hole 18 is smaller than that of the guide column 10; a pressing rod 19 matched with the pressing hole 18 is arranged in the pressing hole; the lower end of the pressing rod 19 is connected to the end face of the upper end of the guide post 10, the upper end of the pressing rod 19 upwards penetrates into the lifting cavity 17, and a pressing plate 20 attached to the wall of the upper side cavity of the lifting cavity 17 is arranged; the upper surface of the screw head 2 is provided with an annular lifting groove 21, the hexagonal clamping groove 3 is enclosed by the lifting groove 21, and the lifting groove 21 is communicated with the lifting cavity 17; a pressing pipe 22 matched with the lifting groove 21 extends upwards from the outer edge of the pressing plate 20; the upper end of the pressing pipe 22 extends out of the lifting groove 21; the pressing pipe 22 and the screw head 2 are fixed through a limiting device.
The limiting device comprises a plurality of fixing blocks 23 which are uniformly distributed on the upper surface of the screw head 2 in a circumferential manner, and the pressing pipe 22 is enclosed by the fixing blocks 23; the pressing pipe 22 is provided with a plurality of limiting holes 24 which are uniformly distributed in the longitudinal direction; a transverse screw hole 25 is formed in the side wall of the fixing block 23 opposite to the limiting hole 24; a limit screw 26 passes through one of the limit holes 24 and is screwed in the transverse screw hole 25, and the pressing tube 22 and the fixed block 23 are fixed by the limit screw 26.
The end face of the outer end of the fastening column 8 is provided with a locking pad 27; the side wall of the outer side of the anti-loosening pad 27 is provided with a plurality of anti-loosening teeth 28 which are uniformly distributed, and the anti-loosening teeth 28 are in an isosceles trapezoid shape; the anti-loosing pad 27 and the anti-loosing teeth 28 are made of rubber.
The utility model discloses a use method as follows:
when the oil drain bolt is required to be fastened in an oil drain hole on an engine, the end part of the hexagonal wrench can be clamped in the hexagonal clamping groove 3 of the screw head, then the screw head 2 can be rotated through the hexagonal wrench, so that the external thread 4 of the screw body 1 is screwed in the oil drain hole along the track of the internal thread of the oil drain hole, and the oil drain bolt completes the primary fastening at the moment.
The limiting screw 26 can be screwed out of the transverse screw hole 25 by a worker, separation of the pressing pipe 22 and the fixing block 23 is achieved, the pressing pipe 22 can move up and down smoothly, the upper end of the pressing pipe 22 can be pressed downwards by the worker, when the pressing pipe 22 moves downwards along the groove wall track of the lifting groove 21, the pressing plate 20 moves downwards, the pressing plate 20 presses the guide post 10 downwards through the pressing rod, the guide post 10 is arranged on the upper surface of the pushing block 6, the pushing block 6 moves downwards along with the guide post 10, a movable distance is reserved between the upper side hole wall of the stroke hole 11 and the upper end face of the guide rod 12, and the guide post can drive the pushing block 6 to move downwards smoothly due to the existence of the movable distance.
The pushing block 6 is wide at the top and narrow at the bottom, the pushing block 6 moves downwards, the diameter of the part, which is attached to the end face of the fastening column 8, of the pushing block 6 is larger, at the moment, the pushing block 6 forms a force pushing outwards through the diameter which is continuously increased per se, so that the fastening column 8 is pushed outwards, the guide hole 9 and the guide rod 12 are matched to play a role in guiding, the pushing block 6 can stably move downwards along the track of the guide rod 12, the downward movement process cannot be deviated laterally, therefore, the conical surface 601 of the pushing block 6 can uniformly apply force on the fastening column 8, all the fastening columns 8 synchronously move outwards along the track of the fastening holes 7 of the fastening column 1, and at the moment, the fastening column 8 which moves outwards can be screwed for the second time and is tightly pressed on the internal thread of the oil drain hole because the bolt 1 is just in the oil drain hole of the engine.
After finishing the secondary fastening, the staff alright fix the position of fastening post 8 through the position of fixed pressure pipe 22, when fixed pressure pipe 22, the staff can pass spacing screw 26 that unscrews earlier this moment and the spacing hole 24 that is relative with horizontal screw 25 this moment and spiro union in horizontal screw 25, alright accomplish the fixed of the position at this moment of pressure pipe 22, after pressing pipe 22 and fixing, the position of fastening post 8 can be fixed, when the oil drain bolt who screws in the oil drain is influenced by the shaking force and is outwards not hard up along the internal thread orbit, the shaking direction of shaking force is then vertical, and spacing screw 26 that spiro union in horizontal screw 25 is in horizontal position, spacing screw 26 can form a horizontal resistance, come to the shaking force to counter-resist vertical direction, effectively avoid external screw thread 4 on the screw body 1 to outwards not hard up along the internal thread orbit of oil drain, and the frictional force that the end portion of fastening post 8 sticiss and press and form on the internal thread of oil drain can effectively form a strong resistance Power, make the unable action of accomplishing the rotation of oil drain bolt, further guarantee the fastening nature of oil drain bolt spiro union in the oil drain downthehole time, when the oil drain bolt that need become flexible, only need screw out spacing screw, the pipe 22 that presses that loses the restriction then can go up and down smoothly, first spring 13 then can upwards push up the briquetting 6 through the elasticity of self compressed this moment, make it reset, finally make and press pipe 22 to realize reseing, second spring 16 then can be through appling self elasticity on slider 15, finally realize reseing of fastening post 8, after fastening post 8 resets, fastening post 8 just no longer sticiss on the oil drain hole internal thread, the oil drain bolt then can accomplish the action of unscrewing under the rotation of hexagonal spanner.
To sum up, can know, the utility model discloses can make fastening post 8 move outward through the mode of pressing pressure pipe 22 downwards in the oil drain of engine after the oil drain bolt spiro union, fastening post 8 after moving outward just can sticis on the oil drain internal thread, further improves oil drain bolt's fastening nature, effectively avoids oil drain bolt to receive the vibrating force influence the not hard up condition of appearance, guarantees oil drain bolt spiro union in the fastening nature in the oil drain, effectively stops the potential safety hazard.
8 outer end terminal surfaces of fastening post are equipped with locking pad 27, locking pad 27 outside lateral wall is equipped with a plurality of evenly distributed's locking tooth 28, locking tooth 28 is the isosceles trapezoid shape, locking pad 27 all is the rubber material with locking tooth 28, the existence of locking pad 27 and locking tooth 28 can take place to warp when fastening post 8 sticiss on the oil drain hole internal thread, thereby the tight embedding is in the internal screw thread clearance of oil drain hole, thereby effectively improve the frictional force between fastening post 8 and the oil drain hole internal thread through the increase area of contact, improve the fastening of oil drain bolt spiro union in the oil drain hole time once more.
Claims (5)
1. The utility model provides an anti-drop's engine oil drain bolt, includes the spiral shell body, locates the spiral shell head of spiral shell body upper end and locates the hexagonal draw-in groove at spiral shell head upper surface center, its characterized in that: the outer wall of the upper part and the outer wall of the lower part of the screw body are both provided with external threads; a fastening cavity is arranged in the screw body; the middle part of the fastening cavity is provided with a pushing block which is in a round table shape with a wide upper part and a narrow lower part, and the outer wall of the pushing block is a conical surface; the outer wall of the middle part of the screw body is provided with a plurality of fastening holes which are uniformly distributed in the circumferential direction and are communicated with the fastening cavities; a fastening column is arranged in the fastening hole and is matched with the fastening hole through a resetting device; the outer end of the fastening column is flush with the hole at the outer end of the fastening hole, and the inner end of the fastening column penetrates into the fastening cavity and is attached to the conical surface; the pushing block is provided with a guide hole penetrating through the pushing block; the upper surface of the pushing block is provided with a guide post corresponding to the position of the guide hole; a stroke hole communicated with the guide hole is formed in the guide column, and the stroke hole is coaxial with the guide hole; a guide rod is arranged in the center of the cavity wall at the lower side of the fastening cavity; the upper end of the guide rod upwards penetrates through the guide hole and penetrates into the stroke hole, and a movable space is formed between the end surface of the upper end of the guide rod and the wall of the upper side hole of the stroke hole; a first spring sleeved outside the guide rod is arranged between the lower surface of the push block and the lower side cavity wall of the fastening cavity; and the screw head is provided with a pressing device connected with the guide post.
2. An anti-drop engine oil drain bolt according to claim 1, characterized in that: the reset device comprises sliding chutes arranged on the inner walls of the upper side and the lower side of the fastening hole; the outer walls of the upper side and the lower side of the push block are provided with sliding blocks matched with the sliding grooves, and the sliding blocks are attached to the groove wall of one side, adjacent to the fastening cavity, of the sliding grooves; and a second spring is arranged between the slide block and the groove wall of one side of the slide groove far away from the fastening cavity.
3. An anti-drop engine oil drain bolt according to claim 1, characterized in that: the pressing device comprises a lifting cavity arranged in the screw head; the lifting cavity is communicated with the fastening cavity through a pressing hole, and the diameter of the pressing hole is smaller than that of the guide column; a pressing rod matched with the pressing hole is arranged in the pressing hole; the lower end of the pressing rod is connected to the end face of the upper end of the guide column, and the upper end of the pressing rod penetrates upwards into the lifting cavity and is provided with a pressing plate which is attached to the upper side cavity wall of the lifting cavity; the upper surface of the screw head is provided with an annular lifting groove, the hexagonal clamping groove is enclosed by the lifting groove, and the lifting groove is communicated with the lifting cavity; a pressing pipe matched with the lifting groove extends upwards from the outer edge of the pressing plate; the upper end of the pressing pipe extends out of the lifting groove; the pressing pipe and the screw head are fixed through a limiting device.
4. An anti-drop engine oil drain bolt according to claim 3, characterized in that: the limiting device comprises a plurality of fixing blocks which are uniformly distributed on the upper surface of the screw head in a circumferential manner, and the fixing blocks surround the pressing pipe; the pressing pipe is provided with a plurality of limiting holes which are uniformly distributed in the longitudinal direction; a transverse screw hole is formed in the side wall of the fixing block, opposite to the limiting hole; a limit screw penetrates through one of the limit holes and is in threaded connection with the transverse screw hole, and the pressing pipe and the fixing block are fixed through the limit screw.
5. An anti-drop engine oil drain bolt according to claim 1, characterized in that: the end face of the outer end of the fastening column is provided with a locking pad; the side wall of the outer side of the anti-loosening pad is provided with a plurality of anti-loosening teeth which are uniformly distributed, and the anti-loosening teeth are in an isosceles trapezoid shape; the anti-loosening cushion and the anti-loosening teeth are made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922101755.1U CN211144602U (en) | 2019-11-29 | 2019-11-29 | Anti-drop's engine oil drain bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922101755.1U CN211144602U (en) | 2019-11-29 | 2019-11-29 | Anti-drop's engine oil drain bolt |
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| Publication Number | Publication Date |
|---|---|
| CN211144602U true CN211144602U (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922101755.1U Active CN211144602U (en) | 2019-11-29 | 2019-11-29 | Anti-drop's engine oil drain bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211144602U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727887A (en) * | 2020-12-29 | 2021-04-30 | 刘涛 | Fastening bolt |
| CN113483007A (en) * | 2021-08-11 | 2021-10-08 | 常州宜轩五金有限公司 | Automatic locking screw |
| CN116085356A (en) * | 2023-04-07 | 2023-05-09 | 杭州未名信科科技有限公司 | Disassembly-free maintenance component of jacking hydraulic system of tower crane |
-
2019
- 2019-11-29 CN CN201922101755.1U patent/CN211144602U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727887A (en) * | 2020-12-29 | 2021-04-30 | 刘涛 | Fastening bolt |
| CN113483007A (en) * | 2021-08-11 | 2021-10-08 | 常州宜轩五金有限公司 | Automatic locking screw |
| CN116085356A (en) * | 2023-04-07 | 2023-05-09 | 杭州未名信科科技有限公司 | Disassembly-free maintenance component of jacking hydraulic system of tower crane |
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