CN211287920U - Locking mechanism - Google Patents
Locking mechanism Download PDFInfo
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- CN211287920U CN211287920U CN201922097279.0U CN201922097279U CN211287920U CN 211287920 U CN211287920 U CN 211287920U CN 201922097279 U CN201922097279 U CN 201922097279U CN 211287920 U CN211287920 U CN 211287920U
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- locking
- locking mechanism
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- sealing sleeve
- sleeve
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Abstract
The utility model relates to a carburetor accessory technical field discloses a locking mechanism, which comprises a workpiece, the inside embedding of work piece is installed locking copper sheathing, and the inside of work piece is close to locking copper sheathing one side embedding and is installed the seal cover, the inside embedding of locking copper sheathing and seal cover has adjusting screw, adjusting screw's one end integrated into one piece has the die cavity, the inner wall integrated into one piece of work piece has I section screw thread step hole, II section screw thread step hole has still been seted up to the inside of seal cover. The improved locking mechanism adopts double-step threads, the forming and processing are simple and convenient, the coaxiality is good, the reliability is good, the traditional press-mounting mechanism adopts single-step threads, the processing precision of the threads of the fastening piece and the screw is poor, and the coaxiality is not ideal; the improved locking mechanism can achieve the effect of preventing tampering through the die cavity, and avoids manual misadjustment and mislocking caused by non-speciality, so that the workpiece fails.
Description
Technical Field
The utility model relates to a carburetor accessory technical field specifically is a locking mechanism.
Background
Because small-size gasoline engine is especially taking the engine of oiling structure, their operational environment is comparatively abominable, and the stability of the high low speed of general carburetor is relatively poor on the market, and the change of rotational speed becomes the problem that awaits solution with shakiness, can be fine solution the above-mentioned problem through structure optimization upgrading now.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a locking mechanism to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a locking mechanism, includes the work piece, the inside embedding of work piece is installed locking copper sheathing, and the inside of work piece is close to locking copper sheathing one side embedding and is installed the seal cover, the inside embedding of locking copper sheathing and seal cover has adjusting screw, adjusting screw's one end integrated into one piece has the die cavity, the inner wall integrated into one piece of work piece has I section screw thread step hole, II section screw thread step hole has still been seted up to the inside of seal cover.
As a further aspect of the present invention: the center points of the I-section thread stepped hole and the II-section thread stepped hole are positioned on the same horizontal line, and the diameter of the I-section thread stepped hole is smaller than that of the II-section thread stepped hole.
As a further aspect of the present invention: the locking copper sleeve and the sealing sleeve are arranged in an integrated mode and are concentric.
As a further aspect of the present invention: the sealing sleeve is of a T-shaped structure and is a high-elasticity plastic component.
As a further aspect of the present invention: the adjusting screw is a double-step external thread with the same pitch, and the adjusting screw is matched with the locking copper sleeve and the sealing sleeve.
As a further aspect of the present invention: the locking copper sleeve, the sealing sleeve and the workpiece are combined to form a double-step threaded hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the thread structure is as follows: the improved locking mechanism adopts double-step threads, the forming and processing are simple and convenient, the coaxiality is good, the reliability is good, the traditional press-mounting mechanism adopts single-step threads, the processing precision of the threads of the fastening piece and the screw is poor, and the coaxiality is not ideal;
2. the assembly mode between the fastener and the workpiece is as follows: the improved locking mechanism is assembled in a thread locking mode and locked by using a special tool, the assembling mode belongs to composite torque and has both radial cladding force and tangential cladding force, a locking copper sleeve is not easy to fall off in the locking and loosening processes of an adjusting screw, the locking depth is easy to control, the assembling reliability between a fastening piece and a plastic piece is good, and the sealing performance is excellent; the traditional press-fitting mechanism is assembled in an interference fit press-fitting mode, only radial wrapping force exists, a press-fitting copper sleeve is easy to fall off in the locking and loosening processes of an adjusting screw, the press-fitting depth is not easy to control, the assembly reliability between a fastener and a plastic part is poor, and the sealing performance is not ideal;
3. the matching mode of the fastener and the screw is as follows: the improved locking mechanism adopts double-step threads, the matching mode adopts high-precision clearance fit and self-tapping interference fit, and the double functions are realized, so that the screw is not easy to shake under the operation environment with severe working conditions, the rotating speed of each corresponding working condition point is more stable, and the performance is more reliable; the traditional press-fitting mechanism adopts single-step threads, the matching mode adopts low-precision clearance matching, the screw shakes seriously under the operation environment with severe working conditions, the rotating speed of each corresponding working condition point is unstable, and the performance reliability is poor;
4. the improved locking mechanism can achieve the effect of preventing tampering through the die cavity, and avoids manual misadjustment and mislocking caused by non-speciality, so that the workpiece fails.
Drawings
FIG. 1 is a schematic structural view of a locking mechanism;
FIG. 2 is a schematic view of the internal structure of a locking mechanism;
FIG. 3 is a schematic view of an adjusting screw of the locking mechanism;
fig. 4 is a schematic view of a mounting structure of a mold cavity in a locking mechanism.
In the figure: 1. an adjusting screw; 2. locking the copper sleeve; 3. sealing sleeves; 4. a workpiece; 5. II, a threaded step hole; 6. i section of thread step hole; 7. a mold cavity.
Detailed Description
Referring to fig. 1, 2 and 3, in embodiment 1 of the present invention, a locking mechanism comprises a workpiece 4, a locking copper sleeve 2 is embedded in the workpiece 4, a sealing sleeve 3 is embedded in one side of the workpiece 4 close to the locking copper sleeve 2, the locking copper sleeve 2 and the sealing sleeve 3 are integrally arranged, the locking copper sleeve 2 and the sealing sleeve 3 are concentric, the locking copper sleeve 2, the sealing sleeve 3 and the workpiece 4 are combined to form a double-step threaded hole, the sealing sleeve 3 is a T-shaped structure, the sealing sleeve 3 is a high-elasticity plastic member, an adjusting screw 1 is embedded in the locking copper sleeve 2 and the sealing sleeve 3, the adjusting screw 1 is a double-step external thread with the same thread pitch, the adjusting screw 1 is matched with the locking copper sleeve 2 and the sealing sleeve 3, a mold cavity 7 is integrally formed at one end of the adjusting screw 1, an I-section threaded step hole 6 is integrally formed in the inner wall of the workpiece 4, II section screw thread stepped hole 5 has still been seted up to seal cover 3's inside, and I section screw thread stepped hole 6 and II section screw thread stepped hole 5's central point are located same water flat line, and I section screw thread stepped hole 6's diameter is less than II section screw thread stepped hole 5's diameter, locks adjusting screw 1 into above-mentioned pore that corresponds in, thereby realizes the oil feed volume size through the locking of adjustment adjusting screw 1 with unclamping, and then the change of control rotational speed.
Referring to fig. 1, 3 and 4, in embodiment 2 of the present invention, a locking mechanism includes a workpiece 4, a locking copper sleeve 2 is embedded in the workpiece 4, a sealing sleeve 3 is embedded in one side of the workpiece 4 close to the locking copper sleeve 2, the locking copper sleeve 2 and the sealing sleeve 3 are integrally disposed, the locking copper sleeve 2 and the sealing sleeve 3 are concentric, the locking copper sleeve 2, the sealing sleeve 3 and the workpiece 4 are combined to form a double-step threaded hole, the sealing sleeve 3 is a T-shaped structure, the sealing sleeve 3 is a high-elasticity plastic member, an adjusting screw 1 is embedded in the locking copper sleeve 2 and the sealing sleeve 3, the adjusting screw 1 is a double-step external thread with different thread pitch, the adjusting screw 1 is adapted to the locking copper sleeve 2 and the sealing sleeve 3, a mold cavity 7 is integrally formed at one end of the adjusting screw 1, an I-section threaded step hole 6 is integrally formed in the inner wall of the workpiece 4, II section screw thread stepped hole 5 has still been seted up to seal cover 3's inside, and I section screw thread stepped hole 6 and II section screw thread stepped hole 5's central point are located same water flat line, and I section screw thread stepped hole 6's diameter is less than II section screw thread stepped hole 5's diameter, locks adjusting screw 1 into above-mentioned pore that corresponds in, thereby realizes the oil feed volume size through the locking of adjustment adjusting screw 1 with unclamping, and then the change of control rotational speed.
The utility model discloses a theory of operation is: firstly, the locking copper sleeve 2 and the sealing sleeve 3 are preassembled into a whole, then the combined preassembled part is locked into a corresponding hole channel of a workpiece 4 by a special screwdriver in a locking mode, finally, the adjusting screw 1 is locked into the corresponding hole channel, the oil inlet amount is realized by adjusting the locking and the loosening of the adjusting screw 1, and further the change of the rotating speed is controlled, and one end of the adjusting screw 1 is integrally formed with a die cavity 7, so that the shape of the die cavity 7 is matched with the shape of a tool used for inserting the adjusting screw 1, tools of other different types cannot be inserted into the die cavity 7, the purpose of preventing falsification is achieved, and the artificial misadjustment and mislocking caused by non-speciality are avoided, and the workpiece failure is further caused.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a locking mechanism, includes work piece (4), its characterized in that, the inside embedding of work piece (4) is installed locking copper sheathing (2), and the inside of work piece (4) is close to locking copper sheathing (2) one side embedding and is installed seal cover (3), the inside embedding of locking copper sheathing (2) and seal cover (3) has adjusting screw (1), the one end integrated into one piece of adjusting screw (1) has die cavity (7), the inner wall integrated into one piece of work piece (4) has I section screw thread step hole (6), II section screw thread step hole (5) have still been seted up to the inside of seal cover (3).
2. The locking mechanism according to claim 1, wherein the center points of the I-section threaded stepped bore (6) and the II-section threaded stepped bore (5) are located on the same horizontal line, and the diameter of the I-section threaded stepped bore (6) is smaller than that of the II-section threaded stepped bore (5).
3. The locking mechanism as claimed in claim 1, characterized in that the locking copper sleeve (2) and the sealing sleeve (3) are arranged in one piece, and the locking copper sleeve (2) and the sealing sleeve (3) are concentric.
4. A locking mechanism according to claim 1, characterized in that the sealing sleeve (3) is of T-shaped construction and the sealing sleeve (3) is a member of highly elastic plastic.
5. The locking mechanism as claimed in claim 1, characterized in that the adjusting screws (1) are double-step external threads with the same pitch, and the adjusting screws (1) are matched with the locking copper sleeve (2) and the sealing sleeve (3).
6. A locking mechanism according to claim 1, characterized in that the locking copper sleeve (2), the sealing sleeve (3) and the workpiece (4) are combined to form a double step threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922097279.0U CN211287920U (en) | 2019-11-28 | 2019-11-28 | Locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922097279.0U CN211287920U (en) | 2019-11-28 | 2019-11-28 | Locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211287920U true CN211287920U (en) | 2020-08-18 |
Family
ID=72034073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922097279.0U Active CN211287920U (en) | 2019-11-28 | 2019-11-28 | Locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211287920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761919A (en) * | 2019-11-28 | 2020-02-07 | 福建省大立通用机电制造有限公司 | Special locking mechanism |
-
2019
- 2019-11-28 CN CN201922097279.0U patent/CN211287920U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761919A (en) * | 2019-11-28 | 2020-02-07 | 福建省大立通用机电制造有限公司 | Special locking mechanism |
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