CN206899163U - A kind of electric hammer sealing and dustproof cover - Google Patents
A kind of electric hammer sealing and dustproof cover Download PDFInfo
- Publication number
- CN206899163U CN206899163U CN201720818617.3U CN201720818617U CN206899163U CN 206899163 U CN206899163 U CN 206899163U CN 201720818617 U CN201720818617 U CN 201720818617U CN 206899163 U CN206899163 U CN 206899163U
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- CN
- China
- Prior art keywords
- electric hammer
- standard
- drill bit
- abrasion
- lengthening part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of electric hammer sealing and dustproof cover, belong to electric hammer accessories field.It includes plastics external member, elastic telescopic set, resilient dust set, abrasion-resistant metal circle, drill bit, seal washer, arc tingle, connecting rod.Fixed groove is opened up in plastics external member, elastic telescopic set and resilient dust set are fixed by fixed groove, easy installation and removal, good airproof performance；Plastics external member is enclosed at the chuck of electric hammer, arc tingle insertion electric hammer handle, which is pricked in hoop, to be fixed, and electric hammer judder also will not loose or dislocation；The standard lengthening part of increase uniform diameters, can avoid drill bit and the unmatched problem of abrasion-resistant metal circle among various drill bits, suitable for the drill bit of various models, improve the applicability and sealing of dust cover；By setting seal washer in standard lengthening part, gap small between abrasion-resistant metal circle and standard lengthening part is covered in, seal washer is resisted against resilient dust set convex portion all the time, improves sealing, prevents dust from leaking.
Description
Technical field
A kind of electric hammer sealing and dustproof cover is the utility model is related to, belongs to electric hammer accessories field.
Background technology
Electric hammer is one kind of electric drill, is mainly used to drill on concrete, floor, brick wall and stone material.Electric hammer is in electric drill
On the basis of, add one and the piston for having crankshaft-link rod is driven by motor, the reciprocating air in a cylinder, make cylinder
Inner air pressure is in mechanical periodicity, and the air pressure of change drives the hammer in cylinder back and forth to hit the top of drill bit, seems me
Use hammer percussive drill bit, therefore named electric hammer.Because the drill bit of electric hammer can rotate, and can front-rear reciprocation movement, so need not
Hand makes great strength, and 6-100mm hole can be opened on the hard materials such as concrete, brick, stone.
Electric hammer can produce strong dust in drilling, pollute environment.There is the dust cover of electric hammer at present, but
It is that due to the fixed structure existing defects between dust cover and electric hammer, electric hammer produces strong vibrations at work, and dust cover holds
Easy loose or dislocation, there are some dust covers to be rotated with drill bit, wear quickly, short life；In addition, each part of dust cover
Between installing/dismounting it is inconvenient, the sealing of mutual junction is not good enough.
The content of the invention
Technical problem to be solved in the utility model is：A kind of electric hammer sealing and dustproof cover is provided, it is solved at present
Electric hammer dust cover fixed structure is insecure, and installing/dismounting is inconvenient between part, the imperfect problem of sealing.
Technical problem to be solved in the utility model takes following technical scheme to realize：
A kind of electric hammer sealing and dustproof cover, it includes plastics external member, elastic telescopic set, resilient dust set, abrasion-resistant metal circle, brill
Head, seal washer, arc tingle, connecting rod；
The plastics external member outer wall is provided with two circle fixed grooves, and the port that elastic telescopic set and resilient dust cover is sequentially sleeved in
In corresponding fixed groove, resilient dust set is internal positioned at elastic telescopic set, wherein, shape is tightened up in the another port of resilient dust set
Into a convex portion, abrasion-resistant metal circle is inlaid with convex portion；
The drill bit is made up of the work department on the square connecting portion of afterbody, middle increased standard lengthening part, head, general
A segment standard lengthening part is added among logical drill bit, the diameter of the standard lengthening part of different drill bits is identical, the diameter of standard lengthening part
Slightly less than abrasion-resistant metal circle internal diameter, standard lengthening part are provided with sealed groove, seal washer are provided with sealed groove；
The arc tingle both sides are fixed by connecting rod and plastics external member, and arc tingle is inserted into electric hammer hand
Handle is pricked in hoop, pricks hoop fixation by tightening, now plastics external member is enclosed at the chuck of electric hammer and fixed just, the square connection of drill bit
Portion is fixed through the abrasion-resistant metal circle of resilient dust set with electric hammer chuck, and the standard lengthening part of drill bit is in abrasion-resistant metal circle,
Seal washer is resisted against resilient dust set end, and gap small between abrasion-resistant metal circle and the standard lengthening part of drill bit is covered
Firmly.
As preferred embodiment, the standard lengthening part length of the drill bit is 35mm.
As preferred embodiment, the convex portion that the resilient dust covers is length 3-5mm cylinder-like structure.
As preferred embodiment, small clearance distance is no more than between the standard lengthening part and abrasion-resistant metal circle of the drill bit
0.01mm。
As preferred embodiment, the abrasion-resistant metal circle using sealed bearings or common metal axle sleeve any one.
As preferred embodiment, the elastic telescopic set is waveform rubber sleeve.
As preferred embodiment, the resilient dust set uses quality of rubber materials.
The beneficial effects of the utility model are：Fixed groove, elastic telescopic set and resilient dust are opened up in plastics external member
Set is fixed by fixed groove, easy installation and removal, good airproof performance；By the way that plastics external member is enclosed at the chuck of electric hammer, arc
Tingle insertion electric hammer handle prick it is fixed in hoop, without using screw, electric hammer judder also will not loose or dislocation, fix tightly
Gu good airproof performance；The standard lengthening part of increase uniform diameters among various drill bits, drill bit and abrasion-resistant metal circle can not avoided not
With the problem of, suitable for the drill bit of various models, improve the applicability and sealing of dust cover；By being set in standard lengthening part
Seal washer is put, gap small between abrasion-resistant metal circle and standard lengthening part is covered in, seal washer is resisted against bullet all the time
Property dirt-proof boot convex portion, improve sealing, prevent dust from leaking.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is plastics external member in the utility model, elastic telescopic set, the attachment structure schematic diagram of resilient dust set；
Fig. 3 is the structural representation of drill bit in the utility model；
Fig. 4 is arc tingle and the attachment structure schematic diagram of plastics external member in the utility model；
Fig. 5 is the structural representation that the utility model is completed rear entirety.
In figure：Plastics external member 1, fixed groove 11, elastic telescopic set 2, resilient dust set 3, convex portion 31, abrasion-resistant metal circle 4,
Drill bit 5, square connecting portion 51, standard lengthening part 52, work department 53, sealed groove 54, seal washer 6, arc tingle 7,
Connecting rod 8, electric hammer 9, handle 91, prick hoop 92, chuck 93.
Embodiment
In order to be easy to understand to technological means of the present utility model, creation characteristic, reached purpose and effect, tie below
Conjunction is specifically illustrating, and the utility model is expanded on further.
As Figure 1-Figure 5, a kind of electric hammer sealing and dustproof cover, it includes plastics external member 1, elastic telescopic set 2, resilient dust
Set 3, abrasion-resistant metal circle 4, drill bit 5, seal washer 6, arc tingle 7, connecting rod 8；
As shown in Fig. 2 the outer wall of plastics external member 1 is provided with two circle fixed grooves 11, elastic telescopic set 2 and resilient dust cover 3
Port is sequentially sleeved in corresponding fixed groove 11, and resilient dust set 3 is covered inside 2 positioned at elastic telescopic, wherein, resilient dust set
3 another port is tightened up to form a convex portion 31, and abrasion-resistant metal circle 4 is inlaid with convex portion 31；
As shown in figure 3, drill bit 5 by afterbody square connecting portion 51, middle increased standard lengthening part 52, head work
Portion 53 is formed, and a segment standard lengthening part 52, the diameter phase of the standard lengthening part 52 of different drill bits 5 are added among normal drill bit
Together, the diameter of standard lengthening part 52 is slightly less than the internal diameter of abrasion-resistant metal circle 4, and standard lengthening part 52 is provided with sealed groove 54, close
Seal washer 6 is provided with envelope groove 54；
As shown in fig. 4-5, the both sides of arc tingle 7 are fixed by connecting rod 8 and plastics external member 1, and arc is fixed
Intermediate plate 7 inserts the handle 91 of electric hammer 9 and pricked in hoop 92, is fixed by tightening bundle hoop 92, now plastics external member 1 is enclosed on electric hammer 9 just
Fixed at chuck 93, the abrasion-resistant metal circle 4 and the chuck 93 of electric hammer 9 of square connecting portion 51 through the resilient dust set 3 of drill bit 5 are solid
Fixed, the standard lengthening part 52 of drill bit 5 is in abrasion-resistant metal circle 4, and seal washer 6 is resisted against resilient dust and covers 3 ends, by metal
Small gap covers between wear-resisting ring 4 and the standard lengthening part 52 of drill bit 5.
The length of standard lengthening part 52 of drill bit 5 is 35mm.
The cylinder-like structure that the convex portion 31 of resilient dust set 3 is length 3-5mm.
Small clearance distance is no more than 0.01mm between the standard lengthening part 52 and abrasion-resistant metal circle 4 of drill bit 5.
Abrasion-resistant metal circle 4 using sealed bearings or common metal axle sleeve any one.
Elastic telescopic set 2 is waveform rubber sleeve.
Resilient dust set 3 uses quality of rubber materials.
In use, the work department 53 of drill bit 5 is aligned into mark for dowel hold, resilient dust set 3 will be covered on around drilling；Start electricity
Hammer 9, drill bit 5 axially retractable can also hit while rotating, and due to the elasticity of resilient dust set 3, the standard of drill bit 5 lengthens
The convex portion 31 of seal washer 6 and resilient dust set 3 in portion 52 is abutted together all the time, when the seal washer 6 on drill bit 5 is oppressed
Resilient dust set 3 is recessed, and convex portion 31 can prevent dust from entering gap.The dust dished out by drill bit 5 enters resilient dust set 3
It is interior, it will not leak, prevent dust air inlet from being sucked by human body, body is damaged, prevent air pollution.Abrasion-resistant metal circle
4 are enclosed on the standard lengthening part 52 of drill bit 5, prevent from wearing resilient dust set 3 when drill bit 5 from rotating.Use sealed bearings and metal shaft
Set can reach abrasion resistant effect；Due to sealed bearings, the life-span is shorter under the intense impact of drill bit 5, and metal axle sleeve is more durable, and two
Person can prevent drill bit 5 from wearing resilient dust set 3, and reach certain sealing effectiveness.
Fixed groove 11 is opened up in plastics external member 1, elastic telescopic set 2 and resilient dust set 3 are solid by fixed groove 11
It is fixed, easy installation and removal, good airproof performance；By the way that plastics external member 1 is enclosed at the chuck 93 of electric hammer 9, arc tingle 7 inserts
The handle 91 of electric hammer 9 prick it is fixed in hoop 92, without using screw, the judder of electric hammer 9 also will not loose or dislocation, fixation, sealing
Property is good；The standard lengthening part 52 of increase uniform diameters, can avoid drill bit 5 from being mismatched with abrasion-resistant metal circle 4 among various drill bits 5
The problem of, suitable for the drill bit 5 of various models, improve the applicability and sealing of dust cover；By in standard lengthening part 52
Seal washer 6 is set, gap small between abrasion-resistant metal circle 4 and standard lengthening part 52 covered in, seal washer 6 supports all the time
Lean against resilient dust and cover 3 convex portions 31, improve sealing, prevent dust from leaking.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, do not depart from the utility model spirit and
On the premise of scope, the utility model also has various changes and modifications, and these changes and improvements both fall within the utility model will
In the range of asking protection.The utility model requires protection scope is by appended claims and its equivalent thereof.
Claims (7)
- A kind of 1. electric hammer sealing and dustproof cover, it is characterised in that：It includes plastics external member, elastic telescopic set, resilient dust set, metal Wear-resisting ring, drill bit, seal washer, arc tingle, connecting rod；The plastics external member outer wall is provided with two circle fixed grooves, and the port that elastic telescopic set and resilient dust cover is sequentially sleeved in accordingly Fixed groove in, resilient dust set is internal positioned at elastic telescopic set, wherein, the another port of resilient dust set tightens up to form one Individual convex portion, abrasion-resistant metal circle is inlaid with convex portion；The drill bit is made up of the work department on the square connecting portion of afterbody, middle increased standard lengthening part, head, is commonly being bored A segment standard lengthening part is added among head, the diameter of the standard lengthening part of different drill bits is identical, and the diameter of standard lengthening part is somewhat Less than abrasion-resistant metal circle internal diameter, standard lengthening part is provided with sealed groove, and seal washer is provided with sealed groove；The arc tingle both sides are fixed by connecting rod and plastics external member, and arc tingle is inserted into electric hammer handle and pricked In hoop, hoop fixation is pricked by tightening, now plastics external member is enclosed at the chuck of electric hammer and fixed just, and the square connecting portion of drill bit is worn The abrasion-resistant metal circle for crossing resilient dust set is fixed with electric hammer chuck, and the standard lengthening part of drill bit is in abrasion-resistant metal circle, sealing Packing ring is resisted against resilient dust set end, and gap small between abrasion-resistant metal circle and the standard lengthening part of drill bit is covered in.
- A kind of 2. electric hammer sealing and dustproof cover according to claim 1, it is characterised in that：The standard lengthening part length of the drill bit For 35mm.
- A kind of 3. electric hammer sealing and dustproof cover according to claim 1, it is characterised in that：The convex portion of the resilient dust set is length Spend 3-5mm cylinder-like structure.
- A kind of 4. electric hammer sealing and dustproof cover according to claim 1, it is characterised in that：The standard lengthening part of the drill bit and gold Small clearance distance is no more than 0.01mm between category wear-resisting ring.
- A kind of 5. electric hammer sealing and dustproof cover according to claim 1, it is characterised in that：The abrasion-resistant metal circle uses seal shaft Hold or common metal axle sleeve any one.
- A kind of 6. electric hammer sealing and dustproof cover according to claim 1, it is characterised in that：The elastic telescopic set is waveform rubber Gum cover.
- A kind of 7. electric hammer sealing and dustproof cover according to claim 1, it is characterised in that：The resilient dust set uses rubber material Matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720818617.3U CN206899163U (en) | 2017-07-07 | 2017-07-07 | A kind of electric hammer sealing and dustproof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720818617.3U CN206899163U (en) | 2017-07-07 | 2017-07-07 | A kind of electric hammer sealing and dustproof cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206899163U true CN206899163U (en) | 2018-01-19 |
Family
ID=61293736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720818617.3U Expired - Fee Related CN206899163U (en) | 2017-07-07 | 2017-07-07 | A kind of electric hammer sealing and dustproof cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206899163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192517A (en) * | 2019-06-23 | 2021-01-08 | 宁波良业电器有限公司 | Dustproof electric impact hammer |
-
2017
- 2017-07-07 CN CN201720818617.3U patent/CN206899163U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192517A (en) * | 2019-06-23 | 2021-01-08 | 宁波良业电器有限公司 | Dustproof electric impact hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20200707 |