CN215965905U

CN215965905U - Cylinder cover plug expansion tool

Info

Publication number: CN215965905U
Application number: CN202121553823.9U
Authority: CN
Inventors: 王云虎; 方帆; 鲍万松
Original assignee: Anqing Cssc Mating Power Co ltd
Current assignee: Anqing Cssc Mating Power Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-03-08
Anticipated expiration: 2031-07-08

Abstract

The utility model relates to a cylinder cover plug-closing expansion tool which comprises an expansion main body, a screw hole, a screw rod moving chamber, an expansion rod moving chamber, a screw rod, a round table-shaped expansion rod, a limiting cover plate and a conical expansion block, wherein the screw hole, the screw rod moving chamber and the expansion rod moving chamber are arranged in the expansion main body; screw, screw rod remove the cavity and the extension rod removes the cavity from last to distributing in the extension main part down in proper order, and screw, screw rod remove the cavity and the extension rod removes and communicate each other between the cavity and run through whole extension main part. This cylinder cap stuffy plug extension instrument utilizes manual rotatory screw rod drive round platform form extension rod to move down and to toper extension piece production pressure, makes the toper piece move to the side to even extrusion stuffy plug reaches the effect of even and stable expansion stuffy plug diameter all around.

Description

Cylinder cover plug expansion tool

Technical Field

The utility model belongs to the technical field of assembling of cylinder cover plug plugs of marine diesel engines, and particularly relates to a cylinder cover plug expansion tool.

Background

The plug is used to plug the bore in the cylinder head.

The expansion plug is not needed during the assembly of the common cylinder cover, and the expansion plug is needed only when the special requirement is met. However, in the prior art, when the stuffy plug is expanded, the stuffy plug is often expanded manually by knocking with a copper bar, so that the poor stuffy plug surface quality and uneven expansion are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a cylinder head plug expanding tool which is simple in structure and reasonable in design.

The utility model realizes the purpose through the following technical scheme:

the utility model provides a cylinder cap vexed stopper extension instrument, includes the extension main part, locates screw, screw rod removal cavity and the extension rod removal cavity in the extension main part, locates screw rod in the screw rod, connects round platform form extension rod, the detachable toper extension block of connecting at the spacing apron of extension main part lower extreme and locating between extension main part and the spacing apron of screw rod lower extreme, toper extension block and round platform form extension rod contact.

As a further optimized scheme of the present invention, the screw hole, the screw rod moving chamber and the expansion rod moving chamber are sequentially distributed in the expansion main body from top to bottom, and the screw hole, the screw rod moving chamber and the expansion rod moving chamber are communicated with each other and penetrate through the whole expansion main body.

As a further optimization scheme of the utility model, the circular truncated cone-shaped expansion rod penetrates through the screw rod moving chamber and the expansion rod moving chamber, and the conical surface of the rod body of the circular truncated cone-shaped expansion rod is matched with the conical surface of the conical expansion block.

As a further optimized scheme of the utility model, the expansion main body is a stepped shaft body, and the diameter of the lower end of the expansion main body is smaller than that of the upper end.

As a further optimization scheme of the utility model, the limiting cover plate is detachably connected with the expansion main body through a screw, and a through hole matched with the circular truncated cone-shaped expansion rod is formed in the middle of the limiting cover plate.

As a further optimization scheme of the utility model, a placing groove for placing the conical expansion block is formed in the outer wall of the lower end of the expansion main body, the placing groove is communicated with the expansion rod moving cavity, the upper end of the conical expansion block is in contact with the inner wall of the placing groove, and the lower end of the conical expansion block is in contact with the upper end face of the limiting cover plate.

The utility model has the beneficial effects that:

1) when the stuffy plug is expanded, a screw rod and a truncated cone-shaped expansion rod connected with the lower end of the screw rod are screwed into an expansion main body, then a conical expansion block is plugged between a limiting cover plate and the expansion main body, a screw is screwed, the lower end of the expansion main body is inserted into the stuffy plug, two wrenches are adopted, one wrench is used for fixing the expansion main body, the other wrench is used for rotating the screw rod, the screw rod rotates in the screw hole and moves downwards, the truncated cone-shaped expansion rod is driven to move in the same direction, the truncated cone-shaped expansion block which is cut with the truncated cone-shaped expansion rod is continuously extruded when the truncated cone-shaped expansion rod moves, the truncated cone-shaped expansion block is extruded by the truncated cone-shaped expansion rod to move towards the outside of the expansion main body, the stuffy plug is expanded when the conical expansion block moves until the screw rod does not move, then the screw rod is rotated, the conical expansion block can be manually plugged back into the expansion main body, then the conical expansion main body is rotated to drive the conical expansion block to align to the unexpanded part of the stuffy plug, the steps are repeated for expansion, the stuffy plug can be uniformly expanded after multiple operations, and the precision is high and labor is saved;

2) the utility model has simple structure, high stability, reasonable design and convenient realization.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. an expansion body; 101. a screw movement chamber; 102. an extension rod moving chamber; 2. a limiting cover plate; 201. perforating; 3. a screw; 4. a screw; 401. a truncated cone-shaped extension rod; 5. a tapered expansion block; 6. and (5) plugging.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; in the description of the present invention, the meaning of "plurality" or "a plurality" is two or more unless otherwise specified.

Example 1

As shown in fig. 1, the cylinder head plug expansion tool comprises an expansion main body 1, a screw hole arranged in the expansion main body 1, a screw rod moving chamber 101 and an expansion rod moving chamber 102, a screw rod 4 arranged in the screw hole, a truncated cone-shaped expansion rod 401 connected to the lower end of the screw rod 4, a limiting cover plate 2 detachably connected to the lower end of the expansion main body 1, and a conical expansion block 5 arranged between the expansion main body 1 and the limiting cover plate 2, wherein the conical expansion block 5 is in contact with the truncated cone-shaped expansion rod 401.

The screw holes, the screw rod moving chamber 101 and the expansion rod moving chamber 102 are sequentially distributed in the expansion main body 1 from top to bottom, and the screw holes, the screw rod moving chamber 101 and the expansion rod moving chamber 102 are communicated with each other and penetrate through the whole expansion main body 1.

The circular truncated cone-shaped extension rod 401 passes through the screw rod moving chamber 101 and the extension rod moving chamber 102, and the conical surface of the rod body of the circular truncated cone-shaped extension rod 401 is fitted with the conical surface of the conical extension block 5.

The extension main part 1 is stepped shaft body, and the diameter of the lower end of the extension main part 1 is smaller than that of the upper end. The lower end of the expansion body 1 can be inserted into the plug 6.

The limiting cover plate 2 is detachably connected with the extension main body 1 through a screw 3, and a through hole 201 matched with the circular truncated cone-shaped extension rod 401 is formed in the middle of the limiting cover plate 2. The through hole 201 is passed through by the circular truncated cone-shaped extension rod 401 when moving downward.

Offer the standing groove that supplies toper expansion piece 5 to place on the lower extreme outer wall of extension main part 1, standing groove and extension rod remove cavity 102 intercommunication, the upper end and the standing groove inner wall contact of toper expansion piece 5, the lower extreme of toper expansion piece 5 and the up end contact of spacing apron 2.

As shown in fig. 1, when the plug 6 is expanded uniformly and precisely, a screw rod 4 and a truncated cone-shaped expansion rod 401 connected with the lower end of the screw rod are screwed into an expansion main body 1, then a conical expansion block 5 is plugged between a limit cover plate 2 and the expansion main body 1, a screw 3 is screwed, then the lower end of the expansion main body 1 is inserted into the plug 6, two wrenches are adopted, one wrench fixes the expansion main body 1, the other wrench rotates the screw rod 4, the screw rod 4 rotates in the screw hole and moves downwards, the truncated cone-shaped expansion rod 401 is driven to move in the same direction, the truncated cone-shaped expansion rod 401 continuously extrudes the conical expansion block 5 which is engaged with the conical expansion block when moving, the truncated cone-shaped expansion rod 401 extrudes the conical expansion block 5 to move towards the outside of the expansion main body 1, the plug 6 is expanded when the conical expansion block 5 moves until the screw rod 4 stops when the screw rod 4 is not rotating, then the screw rod 4 is rotated, and the conical expansion block 5 can be manually plugged back into the expansion main body 1, then the expanding main body 1 is rotated to drive the conical expanding block 5 to be aligned with the unexpanded part of the plug 6, the steps are repeated to expand, and the plug 6 can be uniformly expanded after a plurality of operations.

It should be noted that the manual rotation screw 4 is used for driving the circular truncated cone-shaped extension rod 401 to move downwards and generate pressure on the conical extension block 5, so that the conical extension block moves towards the side edge, the periphery of the stuffy plug 6 is uniformly extruded, the effect of uniformly and stably expanding the diameter of the stuffy plug 6 is achieved, the precision is high, labor is saved, the working intensity of workers is reduced, and meanwhile the working efficiency of the workers is increased.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a cylinder cap stuffy plug extension instrument which characterized in that: including extension main part (1), locate screw, screw rod in extension main part (1) and remove chamber (101) and extension rod and remove chamber (102), locate screw rod (4) in the screw rod, connect round platform form extension rod (401) at screw rod (4) lower extreme, detachable connection is in spacing apron (2) of extension main part (1) lower extreme and locate extension main part (1) and spacing toper extension piece (5) between apron (2), toper extension piece (5) and round platform form extension rod (401) contact.

2. The cylinder head plug extension tool of claim 1, wherein: the screw hole, the screw rod moving chamber (101) and the expansion rod moving chamber (102) are sequentially distributed in the expansion main body (1) from top to bottom, and the screw hole, the screw rod moving chamber (101) and the expansion rod moving chamber (102) are communicated with each other and penetrate through the whole expansion main body (1).

3. The cylinder head plug extension tool of claim 1, wherein: the circular truncated cone-shaped expansion rod (401) penetrates through the screw rod moving chamber (101) and the expansion rod moving chamber (102), and the conical surface of the rod body of the circular truncated cone-shaped expansion rod (401) is matched with the conical surface of the conical expansion block (5).

4. The cylinder head plug extension tool of claim 1, wherein: the extension main body (1) is a stepped shaft body, and the diameter of the lower end of the extension main body (1) is smaller than that of the upper end.

5. The cylinder head plug extension tool of claim 1, wherein: spacing apron (2) are connected with extension main part (1) are detachable through screw (3), and the middle part of spacing apron (2) is equipped with and describes expander rod (401) matched with perforation (201) in round platform.

6. The cylinder head plug extension tool of claim 1, wherein: the lower extreme outer wall of extension main part (1) is seted up the standing groove that supplies toper expansion piece (5) to place, standing groove and extension rod remove cavity (102) intercommunication, the upper end and the standing groove inner wall contact of toper expansion piece (5), the lower extreme of toper expansion piece (5) and the up end contact of spacing apron (2).