CN2696781Y - Firmly connected impact tool - Google Patents
Firmly connected impact tool Download PDFInfo
- Publication number
- CN2696781Y CN2696781Y CN 200420050675 CN200420050675U CN2696781Y CN 2696781 Y CN2696781 Y CN 2696781Y CN 200420050675 CN200420050675 CN 200420050675 CN 200420050675 U CN200420050675 U CN 200420050675U CN 2696781 Y CN2696781 Y CN 2696781Y
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- Prior art keywords
- section
- handle
- straight cylindrical
- cross
- installing hole
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- Expired - Fee Related
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Abstract
The utility model discloses a firmly connected impact tool, comprising a tool head and a handle. The tool head is provided with a mounting hole for mounting the handle. The mounting hole is two or three sections of through holes with the different cross-sectional dimension. One end of the handle which is arranged in the mounting hole is a hollow tube whose external shape is the same to the hole shape of the two stress parts of the mounting hole. The inner hole thereof is provided with a chock. The shape of the stress part of the chock is the same to that of the two stress parts of the mounting hole. Due to the two or three sections of through holes with the different cross-sectional dimension, the hollow tube of the assembly end of the handle is provided with the chock corresponding to the shape of the assembly hole. The handle is assembled together with the assembly hole of the head of the percussion tool through the close matching. With the action of the chock, great compressional force is generated. Thereby, the pulling-out force of the percussion tool is greatly improved. The reliability thereof is enhanced. The service life extended is over three times longer than that of the present percussion tool.
Description
Technical field
The utility model relates to a kind of manual cutting, knocks instrument, specifically is a kind of percussion tool that is connected firmly.
Background technology
The present percussion tool that generally uses, as axe, the structure of hammer and pick etc. is: constitute by the tool heads with pilot hole with by the handle that is assembled together with tool heads pilot hole interference fit, and be provided with adhesive between the two, on the percussion tool head, be provided with lateral pin with described handle vertical direction.The percussion tool of this traditional structure, it assembles firm degree and depends primarily on the dimensional accuracy of handle and pilot hole service life and the adhesive effect of adhesive.Because this type of hand-operated tools is low value-added product, in the high volume production process, very difficult assurance is every all to have very high quality of fit to the handle of percussion tool and percussion tool head pilot hole, and very difficult then assurance is every all to have good firm reliability to percussion tool; And the bonding effect of adhesive is subjected to the influence of factors such as weather, environment, temperature, humidity, service condition and chemical erosion, can produce aging even inefficacy, makes the security reliability of product not have collateral security.In addition, under regular service conditions, because the comprehensive function of various external force such as instrument is hit, bending, pulling-out force, a kind of may be contact with the percussion tool head on the handle and vertical assembling acting surface on to produce stress concentrated, handle easily ruptures in this position; Another kind may be that handle produces plastic deformation, thereby reduces the adhesion of handle and percussion tool head pilot hole, produces the phenomenon that turns around.These two kinds of situations make not only that the pulling-out force of existing percussion tool is low, the life-span short, and easily cause economic loss to the user, even cause personal injury accidents.
The utility model content
The purpose of this utility model overcomes above-mentioned the deficiencies in the prior art, and the percussion tool that is connected firmly of a kind of high pulling-out force, high reliability, long service life is provided.
The percussion tool that is connected firmly of the present utility model comprises tool heads and handle.Described tool heads has the installing hole that handle is installed, this installing hole is one and has 2 or 3 sections through holes that cross sectional dimensions is different, the end that described handle is installed in the installing hole is a hollow tube, the profile of this pipe is identical with the hole shape of two sections parts of the force of installing hole, be provided with chock in its endoporus, the shape of this chock part of the force is identical with the shape of two sections parts of the force of installing hole.
The installing hole of described tool heads comprises first section straight cylindrical and second section bellmouth that handle is packed into and held, and the small end of this bellmouth is connected with straight cylindrical, and its big end is positioned at the other end surface of tool heads.
The installing hole of described tool heads comprises handle pack into the first straight cylindrical and the cross section second straight cylindrical bigger than the cross section of the first straight cylindrical of end, forms a flat step between the two or connects by the inclined plane.
The installing hole of described tool heads, comprise first section straight cylindrical that handle is packed into and held, connected second section bellmouth and the 3rd section straight cylindrical that is connected with the big end of bellmouth, the cross section of the 3rd section straight cylindrical is less than the cross section of second section big end of bellmouth.
The installing hole of described tool heads, comprise first section straight cylindrical and the connected cross section second section straight cylindrical bigger that handle is packed into and held than the cross section of first section straight cylindrical, form a flat step between the two or connect by the inclined plane, the other end of second section straight cylindrical is connected with the 3rd section straight cylindrical, and this straight cylindrical cross section is equal to or less than the cross section of second section straight cylindrical.
The installing hole of described tool heads, handle pack into the first section straight cylindrical and the cross section second section straight cylindrical bigger of end than the cross section of the first straight cylindrical, junction between the two forms a flat step or connects by the inclined plane, the other end in the second straight cylindrical is connected with plural the 3rd section through hole that leads to the tool heads outer surface, and described handle is packed into to hold and had and the 3rd section identical hole of number of openings.
The installing hole of described tool heads, comprise first section straight cylindrical that handle is packed into and held, with the connected second section bellmouth of small end, the other end of bellmouth is connected with plural the 3rd section through hole that leads to the tool heads outer surface, and described handle is packed into to hold and had and the 3rd section identical hole of number of openings.
The minimum endoporus cross section of packing into and hold greater than handle in the tapering part of described chock or the maximum cross section of cylindrical section.
Described handle is packed into and is held the bottom along the circumferential direction to be evenly equipped with longitudinal cut.
Described handle is packed between the outer wall and the installing hole of described tool heads of end, and is provided with adhesive between inwall and the chock.
The advantage and the good effect of the percussion tool that is connected firmly of the present utility model are:
Percussion tool described in the utility model comprises various axes, hammer, pick and similar tool thereof.Owing to have the through hole of 2-3 end varying cross-section size, in the hollow tube of the assembling end of handle, be provided with and the corresponding chock of pilot hole shape, in assembling process, because the effect of assembly force, chock can produce very big extruding force, thereby improved the pulling-out force of percussion tool significantly, its reliability has been strengthened, and increase the service life to existing more than three times of percussion tool.
Be described in further detail percussion tool described in the utility model below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of the percussion tool that is connected firmly described in the utility model;
Fig. 2 is the fragmentary cross-sectional view of the 2nd embodiment of the percussion tool that is connected firmly of the utility model;
Fig. 3 is the fragmentary cross-sectional view of the 3rd embodiment of the percussion tool that is connected firmly of the utility model;
Fig. 4 is the fragmentary cross-sectional view of the 4th embodiment of the percussion tool that is connected firmly of the utility model;
Fig. 5 is the fragmentary cross-sectional view of the 5th embodiment of the percussion tool that is connected firmly of the utility model;
Fig. 6 is the fragmentary cross-sectional view of the 6th embodiment of the percussion tool that is connected firmly of the utility model;
Fig. 7 is the fragmentary cross-sectional view of the 7th embodiment of the percussion tool that is connected firmly of the utility model.
The specific embodiment
Referring to Fig. 1.The percussion tool that is connected firmly described in the utility model comprises tool heads 1 and handle 2.Described tool heads 1 has the installing hole that handle is installed, this installing hole is one and has 2 or 3 sections through holes that cross section is different, the end that described handle 2 is installed in the installing hole is a hollow tube, the profile of this pipe is identical with the hole shape of two sections parts of the force of installing hole, be provided with chock 3 in its endoporus, the shape of these chock 3 parts of the force is identical with the shape of two sections parts of the force of installing hole.So-called part of the force is meant chock 3 and handle 2, tight fit part between handle and the installing hole, and when work, this part is born pulling force and resistance to bending.
During assembling, one end that will have hollow tube earlier, promptly the assembling end inserts in the installing hole of percussion tool head, again with chock 3 from the other end that leaves handle assembling end that improves head is packed the endoporus of hollow tube of handle 2 into, because the maximum cross section of chock 3 forms interference fit greater than the minimum interior cross section of assembling end, handle assembling end is closely linked with tool heads 1.
Introduce all kinds of installing hole below.
Referring to Fig. 1, the installing hole of described tool heads 1 comprises first section straight cylindrical and second section bellmouth that handle is packed into and held, and the small end of this bellmouth is connected with straight cylindrical, and its big end is positioned at the other end surface of tool heads 1.
Referring to Fig. 2 and Fig. 3, the installing hole of described tool heads, comprise handle pack into end the first straight cylindrical and compare the second big straight cylindrical of cross section of the first straight cylindrical, form a flat step between the two or connect by the inclined plane.
Installing hole referring to the described tool heads of Fig. 4, comprise first section straight cylindrical that handle is packed into and held, connected second section bellmouth and the 3rd section straight cylindrical that is connected with the big end of bellmouth, the cross section of the 3rd section straight cylindrical is less than the cross section of second section big end of bellmouth.
Referring to Fig. 5, the installing hole of described tool heads, comprise first section straight cylindrical and the connected cross section second section straight cylindrical bigger that handle is packed into and held than the cross section of first section straight cylindrical, form a flat step between the two or connect by the inclined plane, the other end of second section straight cylindrical is connected with the 3rd section straight cylindrical, and the cross section of this straight cylindrical is equal to or less than the cross section of second section straight cylindrical.
Installing hole referring to the described tool heads of Fig. 6, handle pack into the first section straight cylindrical and the cross section second section straight cylindrical bigger of end than the cross section of the first straight cylindrical, junction between the two forms a flat step or connects by the inclined plane, the other end in the second straight cylindrical is connected with plural the 3rd section through hole that leads to the tool heads outer surface, its quantity determines that according to kind, model or the size of instrument described handle is packed into to hold and had and the 3rd section identical hole of number of openings.
Referring to Fig. 7, the installing hole of described tool heads, comprise first section straight cylindrical that handle is packed into and held, with the connected second section bellmouth of small end, the other end of bellmouth is connected with plural the 3rd section through hole that leads to the tool heads outer surface, and described handle is packed into to hold and had and the 3rd section identical hole of number of openings.Its quantity determines that according to kind, model or the size of instrument described handle is packed into to hold and had and the 3rd section identical hole of number of openings.
The minimum endoporus cross section of packing into and hold greater than handle in the tapering part of described chock 3 or the maximum cross section of cylindrical section.
On the sidewall of described handle 2 assembling end bottoms, along the circumferential direction uniform promising many vertical jaws promptly vertically have the slit along the hollow tube wall, form strip, so that chock is built fashionable distending hollow tube.The quantity of jaw can be determined according to the size of handle, the type and the model of percussion tool.After the assembling, described jaw is sandwiched between installing hole and the chock 3, adopt plastic material also can crack as handle, and be whole and can, in the time of on handle 2 being assembled to according to 1, the outer surface that the assembling impulsive force makes chock 3 produces very big extruding force and makes tube wall produce plastic deformation the hollow tube inwall of handle 2, under the effect of chock 4, axe 1 and handle 2 combine very securely, so just be difficult to make handle 2 to throw off from axe 1, improve pulling-out force greatly, strengthened the security reliability of using
The cross section of described installing hole can be circular, square, oval or other shape.In each embodiment, the cross section of first sector hole is any shape, the cross section of second section or the 3rd sector hole also is any shape, when be circle as the transversal door of the first straight cylindrical, the cross section of second sector hole and the 3rd sector hole also is circular, correspondingly, the cross section of the inside and outside shape of the assembling end of described handle and chock also is corresponding shape.The cross section of holding end of handle is for circular.
Described handle 2 can integral body be a hollow pipe, also can be to hold to the hollow pipe except assembling, and all the other are solid.Its hollow pipe can be an endoporus, also can be the plural hollow pipe that is arranged in parallel
Between the outer wall of described handle 2 assembling ends and the installing hole of described tool heads 1, and be provided with adhesive between inwall and the chock 3.Can further improve the cooperation intensity of the utility model percussion tool.
After described chock 3 inserts the assembling end of handle, should make the termination of chock 3 surpass the surface that tool heads is installed handle end, be to hold handle one end the worker after chock 3 assemblings to stretch out percussion tool head outer surface one segment length, can strengthen the static load test intensity of percussion tool, avoiding producing stress at handle 2 simultaneously concentrates, when firmly removing sled, rupture.Its extension elongation can be according to the type of percussion tool, and model and size are determined.
Comfortable and attractive in appearance in order to use, be set with gum cover 4 in the outside of handle 2.
Between handle 2 outer walls and the axe 1 and handle 2 inwalls and fall and to be filled with adhesive between the chock 4,
Comfortable and attractive in appearance in order to use, be set with gum cover 6 in handle 2 outsides.
The percussion tool that the utility model is connected firmly, owing to do not have the lateral pin hole at percussion tool head outer surface, not only attractive in appearance, and avoided because of the lateral pin hole enters impurity, prevented the corrosion of steel pipe handle inwall, help increasing the service life.Its assembling firmly, tension, bending strength is big, safe and reliable, operation is simplified, workload is little, manufacturing process advanced person, but and automation mechanized operation improved operating efficiency, be the high hand-operated tools of a kind of steady quality reliability.
Claims (12)
1. the percussion tool that is connected firmly, comprise tool heads (1) and handle (2), it is characterized in that described tool heads (1) has the installing hole that handle is installed, this installing hole is one and has 2 or 3 sections through holes that cross sectional dimensions is different, the end that described handle (2) is installed in the installing hole is a hollow tube, the profile of this pipe is identical with the hole shape of two sections parts of the force of installing hole, is provided with chock (3) in its endoporus, and the shape of this chock (3) part of the force is identical with the shape of two sections parts of the force of installing hole.
2. percussion tool according to claim 1, the installing hole that it is characterized in that described tool heads, comprise first section straight cylindrical and second section bellmouth that handle is packed into and held, the small end of this bellmouth is connected with straight cylindrical, and its big end is positioned at the other end surface of tool heads (1).
3. percussion tool according to claim 1, the installing hole that it is characterized in that described tool heads, comprise handle pack into the first straight cylindrical and the cross section second straight cylindrical bigger of end, form a flat step between the two or connect by the inclined plane than the cross section of the first straight cylindrical.
4. percussion tool according to claim 1, the installing hole that it is characterized in that described tool heads, comprise first section straight cylindrical that handle is packed into and held, connected second section bellmouth and the 3rd section straight cylindrical that is connected with the big end of bellmouth, the cross section of the 3rd section straight cylindrical is less than the cross section of second section big end of bellmouth.
5. percussion tool according to claim 1, the installing hole that it is characterized in that described tool heads, comprise first section straight cylindrical and the connected cross section second section straight cylindrical bigger that handle is packed into and held than the cross section of first section straight cylindrical, form a flat step between the two or connect by the inclined plane, the other end of second section straight cylindrical is connected with the 3rd section straight cylindrical, and this straight cylindrical cross section is equal to or less than the cross section of second section straight cylindrical.
6. percussion tool according to claim 1, the installing hole that it is characterized in that described tool heads, handle pack into the first section straight cylindrical and the cross section second section straight cylindrical bigger of end than the cross section of the first straight cylindrical, junction between the two forms a flat step or connects by the inclined plane, the other end in the second straight cylindrical is connected with plural the 3rd section through hole that leads to the tool heads outer surface, and described handle is packed into to hold and had and the 3rd section identical hole of number of openings.
7. percussion tool according to claim 1, the installing hole that it is characterized in that described tool heads, comprise first section straight cylindrical that handle is packed into and held, with the connected second section bellmouth of small end, the other end of bellmouth is connected with plural the 3rd section through hole that leads to the tool heads outer surface, and described handle is packed into to hold and had and the 3rd section identical hole of number of openings.
8. according to each described percussion tool among the claim 1-7, the maximum cross section that it is characterized in that the tapering part of described chock (3) or cylindrical section is greater than pack into the minimum endoporus cross section of end of handle.
9. according to each described percussion tool in the claim 1 to 7, it is characterized in that described handle (2) the end bottom of packing into along the circumferential direction is evenly equipped with longitudinal cut.
10. percussion tool according to claim 8 is characterized in that described handle (2) assembling end bottom along the circumferential direction is evenly equipped with longitudinal cut.
11. percussion tool according to claim 9 is characterized in that described handle (2) packs between the outer wall and the installing hole of described tool heads (1) of end, and is provided with adhesive between inwall and the chock (3).
12. percussion tool according to claim 10 is characterized in that described handle (2) packs between the outer wall and the installing hole of described tool heads (1) of end, and is provided with adhesive between inwall and the chock (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050675 CN2696781Y (en) | 2004-05-09 | 2004-05-09 | Firmly connected impact tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050675 CN2696781Y (en) | 2004-05-09 | 2004-05-09 | Firmly connected impact tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2696781Y true CN2696781Y (en) | 2005-05-04 |
Family
ID=34776957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420050675 Expired - Fee Related CN2696781Y (en) | 2004-05-09 | 2004-05-09 | Firmly connected impact tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2696781Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343578A (en) * | 2010-08-03 | 2012-02-08 | 刘于颇 | Quick assembly disengaging device |
| CN103624753A (en) * | 2013-07-31 | 2014-03-12 | 张维斌 | Composite plastic hammer handle and connecting method thereof |
-
2004
- 2004-05-09 CN CN 200420050675 patent/CN2696781Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343578A (en) * | 2010-08-03 | 2012-02-08 | 刘于颇 | Quick assembly disengaging device |
| CN103624753A (en) * | 2013-07-31 | 2014-03-12 | 张维斌 | Composite plastic hammer handle and connecting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050504 |