CN220463716U - Quick fastening tool for cylinder cover bolt of diesel engine - Google Patents
Quick fastening tool for cylinder cover bolt of diesel engine Download PDFInfo
- Publication number
- CN220463716U CN220463716U CN202322003995.4U CN202322003995U CN220463716U CN 220463716 U CN220463716 U CN 220463716U CN 202322003995 U CN202322003995 U CN 202322003995U CN 220463716 U CN220463716 U CN 220463716U
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- fastening
- screw sleeve
- diesel engine
- fastening screw
- thread
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- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to the technical field of diesel engine overhaul, and particularly discloses a quick fastening tool for a diesel engine cylinder cover bolt. A quick fastening tool for a cylinder cover bolt of a diesel engine is characterized in that: the tool comprises a limit screw and a fastening screw sleeve, wherein the outer surface of the limit screw is covered with a reverse thread, the whole fastening screw sleeve is of a columnar structure, the lower part of the fastening screw sleeve is a hollow cylinder, the inner wall of the fastening screw sleeve is covered with a positive thread, and the upper part of the fastening screw sleeve is of a polygonal columnar structure so as to facilitate clamping of a wrench, and the fastening screw sleeve is hollow and covered with the positive thread. The device is through the cooperation use of stop screw and fastening swivel nut, can accomplish the fastening of cylinder cap bolt convenient and fast, can prevent again that the screw thread from biting the dead condition after the fastening to greatly save manpower time and cost, furthest reduces the security risk simultaneously, can be widely used in diesel engine cylinder cap overhauls.
Description
Technical Field
The utility model belongs to the technical field of diesel engine overhaul, and particularly relates to a quick fastening tool for a diesel engine cylinder cover bolt.
Background
The cylinder cover on the diesel engine has the cylinder cap bolt on every cylinder cap, and the cylinder cap bolt surface adopts the screw thread form, and the bolt external diameter is great, and the cylinder cap bolt is used for fixing the cylinder cap on the cylinder liner, and the cylinder cap bolt is not hard up if appears, will make the cooperation between cylinder cap and the cylinder liner not hard up, leads to the mechanical parts damage of diesel engine, consequently in case the not hard up condition of cylinder cap appears, need in time fasten it again.
Because the diameter of the cylinder head bolt is larger, the fastening moment is larger, the fastening of all the cylinder head bolts on a diesel engine can be completed by using a conventional tool, and the fastening can be completed by consuming great manpower, and meanwhile, the condition that the screw thread is locked and cannot be taken down after the fastening is completed by using a common screw thread tool generally exists, so that great waste of manpower time is caused.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and provides a quick fastening tool for a cylinder head bolt of a diesel engine, which can not only conveniently and quickly fasten the cylinder head bolt, but also prevent the situation that threads are blocked after fastening.
In order to solve the problems, the technical scheme of the utility model is as follows: a quick fastening tool for a cylinder cover bolt of a diesel engine is characterized in that: the tool comprises a limit screw and a fastening screw sleeve, wherein the outer surface of the limit screw is covered with a reverse thread, the whole fastening screw sleeve is of a columnar structure, the lower part of the fastening screw sleeve is a hollow cylinder, the inner wall of the fastening screw sleeve is covered with a positive thread, and the upper part of the fastening screw sleeve is of a polygonal columnar structure so as to facilitate clamping of a wrench, and the fastening screw sleeve is hollow and covered with the positive thread.
The upper part of the fastening screw sleeve is of a hexagonal columnar structure.
The size of the positive thread of the inner wall of the upper part of the fastening screw sleeve is matched with the thread of the outer surface of the limit screw.
The size of the positive thread of the inner wall of the lower part of the fastening screw sleeve is matched with the thread of the outer surface of the cylinder cover bolt.
The utility model has the remarkable effects that: the device is through the cooperation use of stop screw and fastening swivel nut, can accomplish the fastening of cylinder cap bolt convenient and fast, can prevent again that the screw thread from biting the dead condition after the fastening to greatly save manpower time and cost, furthest reduces the security risk simultaneously, can be widely used in diesel engine cylinder cap overhauls.
Drawings
FIG. 1 is a schematic diagram of a quick fastening tool for a cylinder head bolt of a diesel engine;
fig. 2 is a schematic structural view of a limit screw of a quick fastening tool for a cylinder head bolt of a diesel engine according to the present utility model;
FIG. 3 is a schematic view of a quick fastening tool fastening screw sleeve for a cylinder head bolt of a diesel engine;
FIG. 4 is a schematic view of a process of tightening a cylinder head bolt by using a quick tightening tool for a cylinder head bolt of a diesel engine according to the present utility model;
fig. 5 is a schematic diagram of a dismantling process after a quick fastening tool for a diesel engine cylinder head bolt of the utility model is screwed down on a cylinder head;
in the figure: 1. a limit screw; 2. fastening the screw sleeve; 3. and a cylinder cover bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent, and the embodiments described in detail, but not necessarily all, in connection with the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by "upper" or the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience and simplicity of description, and is not meant to indicate or imply that the apparatus or element to be referred to must be provided with a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "configured," "mounted," "secured," and the like are to be construed broadly and may be either fixedly connected or detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
As shown in fig. 1-3, a quick fastening tool for a diesel engine cylinder head bolt comprises a limit screw 1 and a fastening screw sleeve 2, wherein the outer surface of the limit screw 1 is covered with a reverse thread, the whole body of the fastening screw sleeve 2 is in a columnar structure, the lower part of the fastening screw sleeve is a hollow cylinder, the inner wall of the fastening screw sleeve is covered with a positive thread, the upper part of the fastening screw sleeve is in a polygonal columnar structure so as to be convenient for clamping a spanner, the inside of the fastening screw sleeve is hollow and covered with the positive thread, as an embodiment, the upper part of the fastening screw sleeve 2 is in a hexagonal columnar structure, the size of the positive thread on the inner wall of the upper part of the fastening screw sleeve 2 is matched with the thread on the outer surface of the limit screw 1, and the size of the positive thread on the inner wall of the lower part of the fastening screw sleeve 2 is matched with the thread on the outer surface of the cylinder head bolt 3.
The operation process of the tool is as follows:
the fastening process of the cylinder cover bolt 3 comprises the following steps: the limiting screw 1 is screwed into the fastening screw sleeve 2 through the reverse thread, then the tool is screwed into the cylinder head bolt 3 through the fastening screw sleeve 2 until the limiting screw 1 is propped against the upper end of the cylinder head bolt 3, and at the moment, the fastening screw sleeve 2 is continuously screwed, so that the cylinder head bolt 3 can be fastened.
Tool withdrawal process after fastening is completed: due to the limitation of the limit screw 1, after the fastening of the cylinder head bolt 3 is completed, the thread of the fastening screw sleeve 2 is not meshed with the cylinder head bolt 3. At this time, the limit screw 1 is screwed in the positive wire direction, and the limit screw 1 is in threaded contact with the fastening screw sleeve 2 in the reverse wire direction, so that the limit screw 1 can loosen the threaded connection between the fastening screw sleeve 2 and the cylinder cover bolt 3 on the premise of ensuring the cylinder cover bolt 3 to be continuously fastened, and the aim of quickly dismantling the assembly is fulfilled.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (4)
1. A quick fastening tool for a cylinder cover bolt of a diesel engine is characterized in that: the tool comprises a limit screw (1) and a fastening screw sleeve (2), wherein the outer surface of the limit screw (1) is covered with a reverse thread, the whole fastening screw sleeve (2) is of a columnar structure, the lower part of the fastening screw sleeve is a hollow cylinder, the inner wall of the fastening screw sleeve is covered with a positive thread, the upper part of the fastening screw sleeve is of a polygonal columnar structure, so that the fastening screw is convenient for clamping a wrench, and the fastening screw sleeve is hollow and covered with the positive thread.
2. The quick fastening tool for a cylinder head bolt of a diesel engine according to claim 1, wherein: the upper part of the fastening screw sleeve (2) is of a hexagonal columnar structure.
3. The quick fastening tool for a cylinder head bolt of a diesel engine according to claim 1, wherein: the size of the positive thread of the inner wall of the upper part of the fastening screw sleeve (2) is matched with the thread of the outer surface of the limit screw (1).
4. The quick fastening tool for a cylinder head bolt of a diesel engine according to claim 1, wherein: the size of the positive thread of the inner wall of the lower part of the fastening screw sleeve (2) is matched with the thread of the outer surface of the cylinder cover bolt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322003995.4U CN220463716U (en) | 2023-07-28 | 2023-07-28 | Quick fastening tool for cylinder cover bolt of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322003995.4U CN220463716U (en) | 2023-07-28 | 2023-07-28 | Quick fastening tool for cylinder cover bolt of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220463716U true CN220463716U (en) | 2024-02-09 |
Family
ID=89773767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322003995.4U Active CN220463716U (en) | 2023-07-28 | 2023-07-28 | Quick fastening tool for cylinder cover bolt of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220463716U (en) |
-
2023
- 2023-07-28 CN CN202322003995.4U patent/CN220463716U/en active Active
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