CN204294969U - Self-locking type clamping head of hand-locking drill - Google Patents
Self-locking type clamping head of hand-locking drill Download PDFInfo
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- CN204294969U CN204294969U CN201420749470.3U CN201420749470U CN204294969U CN 204294969 U CN204294969 U CN 204294969U CN 201420749470 U CN201420749470 U CN 201420749470U CN 204294969 U CN204294969 U CN 204294969U
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- hand
- ring
- locking
- tight
- clamping
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Abstract
The utility model discloses a kind of self-locking type clamping head of hand-locking drill, comprise drill body, described drill body is bolted with a pad, one bungee ring set is established and is fixed on hand-tight nut, described bungee ring outer ring is provided with hand-tight cover, described bungee ring comprises the ring be set on hand-tight nut, and on described ring, circumferentially direction is provided with multiple from locking plate and clamping sheet, described from locking plate and clamping sheet in arranging separately; Described hand-tight cover inwall is provided with the limited block group, the cam bit that match with from locking plate, clamping sheet; Described limited block group comprises three limited block unit separately, and between it, define the first groove and the second groove, describedly comprise from lock section from locking plate, the width of first, second groove described with match from the width of lock section, the corner of described limited block unit is equipped with rounding; Described cam bit is single, and is provided with rounding along the corner in clamping direction.Hand-tight cover of the present utility model and bungee ring and bungee ring and hand-tight nut not easily skid.
Description
Technical field
The utility model relates to a kind of self-locking type clamping head of hand-locking drill.
Background technology
Self-locking type clamping head of hand-locking drill, it has easy to operate, and fast, precision advantages of higher, obtains and apply more and more widely, but still there are some defects, as: chucking power is little, skids.
Chinese patent notification number is that CN203900573 U discloses a kind of self-locking type clamping head of hand-locking drill, it is the spring leaf of one section of arc that bungee ring wherein comprises what be set in that ring on hand-tight nut and ring outer wall turn edge downwards, described spring leaf one end is clamping sheet, the other end is from locking plate, by turning clockwise, hand-tight cover drives collar, collar Timing Belt starts jack panel, hand-tight nut continues to screw, after screwing power and arriving critical point, limiting stand is crossed from locking plate, clamping sheet departs from the extruding of cam platform simultaneously, according to the unidirectional characteristic of handle ratchet wheel, clamping sheet continues to move and sends the sound of " click click " on handle ratchet wheel, now indicate that drill bit is clamped, otherwise make hand-tight cover reverse, limiting stand climbs over from locking plate, and cam platform extruding clamping sheet, make clamping sheet depart from ratchet, then realize unlocking.
The self-locking type clamping head of hand-locking drill of above structure is easy to operate, locking effect is good, but in use also there is certain defect, comprise: the single clamping sheet 1) on bungee ring and in use meet the excessively sufficient electric drill of impulsive force from locking plate, final or clamping self-locking failure can be caused; 2) limiting stand of hand-tight cover is only one, when tightening, limiting stand is climbed over from locking plate, firmly twist if continue again, and that hand-tight nut is twisted is excessively firm, now hand-tight cover easily and bungee environment-development looks fight each other and trackslip dynamic, then cause clamping sheet disengaging cam platform, and clamp with ratchet, well can not unclamp jaw; 3) bungee ring is directly set on hand-tight nut, without the fixed structure that other are concrete, easily causes bungee ring and hand-tight nut in rotation to have relative motion, cannot make hand-tight nut rotation.
Summary of the invention
It is thorough that the utility model will solve the clamping that existing self-locking type clamping head of hand-locking drill clamping sheet causes less, and the technical problem that hand-tight cover, bungee ring easily skid.
The technical scheme in the invention for solving the above technical problem is:
The utility model discloses a kind of self-locking type clamping head of hand-locking drill, comprise drill body and be located at the jaw that can vertically move guiding in the inclined hole in drill body, hand-tight nut sleeve to be located on drill body and with the threaded engagement of jaw, described drill body is bolted with a pad, pad is in the below of hand-tight nut, to be provided with straight up outer turns edge for described pad outer rim, and the described outer inwall that turns edge is provided with handle ratchet wheel; The one bungee ring set being in the upper surface that to turn edge outside pad is established and is fixed on hand-tight nut and is synchronized with the movement with it, described bungee ring outer ring is provided with hand-tight cover, described bungee ring comprises the ring be set on hand-tight nut, it is characterized in that: on described ring, circumferentially direction is provided with multiple from locking plate and clamping sheet, described from locking plate and clamping sheet in arranging separately; Described hand-tight cover inwall is provided with the limited block group, the cam bit that match with from locking plate, clamping sheet; Described limited block group comprises three limited block unit separately, and between it, define the first groove and the second groove, describedly comprise from lock section from locking plate, the width of first, second groove described with match from the width of lock section, the corner of described limited block unit is equipped with rounding; Described cam bit is single, and is provided with rounding along the corner in clamping direction.
The ring inwall of described bungee ring is provided with multiple V-shaped stuck point, and described stuck point matches with the draw-in groove being arranged on hand-tight nut outer wall.
Described from locking plate be the end of one end and ring one fixing there is flexible steel disc A, described steel disc A mates with the arcuate peripheral of ring and is separated with its periphery, be provided with from lock section in the end of the other end of steel disc A, described is that outwardly convex is also in curved surface state from lock section.
Described clamping sheet be the end of one end and ring one fixing there is flexible steel disc B, described steel disc B mates with the arcuate peripheral of ring and is separated with its periphery, card-tight part is provided with in the end of the other end of steel disc B, described card-tight part comprises outwardly convex and reset portion in curved surface state, be located at clamping sawtooth bottom reset portion, and described reset portion is mated with cam platform; Described clamping sheet clamping sawtooth is in its natural state meshed with the ratchet on described pad, clamps sawtooth and depart from ratchet under cam platform pressed home portion state.
The technique effect that the utility model can reach is:
Compared with prior art, self-locking type clamping head of hand-locking drill of the present utility model, the ring of bungee ring is established multiple from locking plate and clamping sheet, ensure that the dynamics of clamping self-locking, also increase the sound of " click click " that relative motion produces between clamping sawtooth and handle ratchet wheel, and placement separately ensure that the uniformity of clamping self-locking dynamics;
Compared with prior art, self-locking type clamping head of hand-locking drill of the present utility model, at the first groove and second groove of boss group, the first groove is jumped into from lock section from locking plate when jaw unclamps, the limiting stand unit of limiting stand group can to there being the power stopped from lock section, add the adhesive force between hand-tight cover and bungee ring when unclamping, make hand-tight cover further and bungee ring fix, avoid phenomenon generation of spinning as much as possible, otherwise, during jaw clamping, the second groove is jumped into from lock section, limiting stand unit is to there being the power oppositely stopped from lock section, the situation that the clamping sheet that avoiding relatively rotates between hand-tight cover and bungee ring causes departs from cam platform occurs,
Compared with prior art, self-locking type clamping head of hand-locking drill of the present utility model, is fixed by " V " shape stuck point, avoids the skidding between it between bungee ring and hand-tight nut.
Accompanying drawing explanation
Fig. 1 is three-dimensional exploded view of the present utility model;
Fig. 2 is the structural representation of hand-tight cover of the present utility model;
Fig. 3 is the structural perspective of bungee ring of the present utility model;
Fig. 4 is the structural representation of jaw of the present utility model when unclamping between hand-tight cover and bungee ring;
Structural representation when Fig. 5 is jaw of the present utility model clamping between hand-tight cover and bungee ring.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Refer to Fig. 1 to Fig. 5, the utility model provides a kind of self-locking type clamping head of hand-locking drill, comprise drill body 1 and be located at the jaw 2 that can vertically move guiding in the inclined hole in drill body 1, hand-tight nut 5 to be set on drill body 1 and with the threaded engagement of jaw 2, described drill body 1 is bolted with a pad 3, pad 3 is in the below of hand-tight nut 5, and to be provided with straight up outer turns edge for described pad 3 outer rim, and the described outer inwall that turns edge is provided with handle ratchet wheel 31; One is in that the bungee ring 6 of the upper surface that to turn edge outside pad 3 is sheathed to be fixed on hand-tight nut 5 and to be synchronized with the movement with it, rolling bearing 4 is also provided with between bungee ring 6 and pad 3, described bungee ring 6 outer ring is provided with hand-tight cover 7, described bungee ring 6 comprises the ring 61 be set on hand-tight nut 5, on described ring 61, circumferentially direction is provided with multiple from locking plate 62 and clamping sheet 63, described from locking plate 62 with clamping sheet 63 in arranging separately; Described hand-tight cover 7 inwall is provided with the limited block group 71, the cam bit 72 that match with from locking plate 62, clamping sheet 63; Described limited block group 71 comprises three limited block unit 711 separately, and between it, define the first groove 73 and the second groove 74, describedly comprise from lock section 622 from locking plate 62, the width of first, second groove 73,74 described with match from the width of lock section 622, the corner of described limited block unit 711 is equipped with rounding; Described cam bit 72 is single, and is provided with rounding along the corner in clamping direction.
Ring 61 inwall of described bungee ring 6 is provided with multiple stuck point 64, and described stuck point 64 matches with the draw-in groove 51 being arranged on hand-tight nut 5 outer wall.
Preferably, stuck point 64 is V-shaped, and this Standard is convenient, and card is established more firm.
Described from locking plate 6 be the end of one end and ring 61 one fixing there is flexible steel disc A621, described steel disc A621 mates with the arcuate peripheral of ring 61 and is separated with its periphery, be provided with in the end of the other end of steel disc A621 from lock section 622, described is that outwardly convex is also in curved surface state from lock section 622.
Described clamping sheet 63 be the end of one end and ring 61 one fixing there is flexible steel disc B631, described steel disc B631 mates with the arcuate peripheral of ring 61 and is separated with its periphery, card-tight part 632 is provided with in the end of the other end of steel disc B631, described card-tight part 632 comprises outwardly convex and reset portion 6321 in curved surface state, be located at clamping sawtooth 6322 bottom reset portion 6321, and described reset portion 6321 is mated with cam platform 72; Described clamping sheet 63 clamping sawtooth 6322 is in its natural state meshed with the ratchet 31 on described pad 3, clamps sawtooth 6322 and depart from ratchet 31 under cam platform 72 pressed home portion 6321 state.
The operation principle of hand fastening drill clutch of the present utility model is as follows:
When needs clamp jaw 2, the initial state of clamping sheet 63 is cam platform 72 pressed home portion 6321, the first groove 73 is in from lock section 622 from locking plate 6, now clamp sawtooth 6322 and depart from ratchet 31, bungee ring 6 is in released state, now, hand-tight cover 7 is rotatable and drive hand-tight nut 5 to rotate, jaw 2 is clamped, after to be clamped, the hand-tight cover 7 of further rotation, the limiting stand unit 711 mediated is climbed over from lock section 622 from locking plate 62, jump into the second groove 74, and reset portion 6321 departs from cam platform 72 in the raw, now, clamping sawtooth 6322 engages with ratchet 31, prevent hand-tight nut 5 from reversing, the limiting stand unit 711 being in outside further restriction due to the skidding between the hand-tight cover 7 that overexerts and bungee ring 6, otherwise, when need unclamp jaw 2, the reset portion 6321 of clamping sheet 63 is returned cam platform 72 and extrudes by it, clamping sawtooth 6322 unlocks, rotatable hand-tight nut 5, meanwhile, from lock section 622 from the second groove 74 rebound first groove 73, further, the limiting stand unit 711 outside another limits the skidding between hand-tight cover 7 and bungee ring 6.
Above a kind of self-locking type clamping head of hand-locking drill that the utility model embodiment provides is described in detail, apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment is just for helping to understand the technical scheme that the utility model discloses; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a self-locking type clamping head of hand-locking drill, comprise drill body and be located at the jaw that can vertically move guiding in the inclined hole in drill body, hand-tight nut sleeve to be located on drill body and with the threaded engagement of jaw, described drill body is bolted with a pad, pad is in the below of hand-tight nut, to be provided with straight up outer turns edge for described pad outer rim, and the described outer inwall that turns edge is provided with handle ratchet wheel; The one bungee ring set being in the upper surface that to turn edge outside pad is established and is fixed on hand-tight nut and is synchronized with the movement with it, described bungee ring outer ring is provided with hand-tight cover, described bungee ring comprises the ring be set on hand-tight nut, it is characterized in that: on described ring, circumferentially direction is provided with multiple from locking plate and clamping sheet, described from locking plate and clamping sheet in arranging separately; Described hand-tight cover inwall is provided with the limited block group, the cam bit that match with from locking plate, clamping sheet; Described limited block group comprises three limited block unit separately, and between it, define the first groove and the second groove, describedly comprise from lock section from locking plate, the width of first, second groove described with match from the width of lock section, the corner of described limited block unit is equipped with rounding; Described cam bit is single, and is provided with rounding along the corner in clamping direction.
2. a kind of self-locking type clamping head of hand-locking drill according to claim 1, is characterized in that: the ring inwall of described bungee ring is provided with multiple V-shaped stuck point, and described stuck point matches with the draw-in groove being arranged on hand-tight nut outer wall.
3. a kind of self-locking type clamping head of hand-locking drill according to claim 1, it is characterized in that: described from locking plate be the end of one end and ring one fixing there is flexible steel disc A, described steel disc A mates with the arcuate peripheral of ring and is separated with its periphery, be provided with from lock section in the end of the other end of steel disc A, described is that outwardly convex is also in curved surface state from lock section.
4. a kind of self-locking type clamping head of hand-locking drill according to claim 1, it is characterized in that: described clamping sheet be the end of one end and ring one fixing there is flexible steel disc B, described steel disc B mates with the arcuate peripheral of ring and is separated with its periphery, card-tight part is provided with in the end of the other end of steel disc B, described card-tight part comprises outwardly convex and reset portion in curved surface state, be located at clamping sawtooth bottom reset portion, and described reset portion is mated with cam platform; Described clamping sheet clamping sawtooth is in its natural state meshed with the ratchet on described pad, clamps sawtooth and depart from ratchet under cam platform pressed home portion state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749470.3U CN204294969U (en) | 2014-12-04 | 2014-12-04 | Self-locking type clamping head of hand-locking drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749470.3U CN204294969U (en) | 2014-12-04 | 2014-12-04 | Self-locking type clamping head of hand-locking drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204294969U true CN204294969U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420749470.3U Active CN204294969U (en) | 2014-12-04 | 2014-12-04 | Self-locking type clamping head of hand-locking drill |
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| Country | Link |
|---|---|
| CN (1) | CN204294969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426099A (en) * | 2019-08-30 | 2019-11-08 | 李万容 | Tamper lock card is used at gas meter, flow meter attaching nut |
-
2014
- 2014-12-04 CN CN201420749470.3U patent/CN204294969U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426099A (en) * | 2019-08-30 | 2019-11-08 | 李万容 | Tamper lock card is used at gas meter, flow meter attaching nut |
| CN110426099B (en) * | 2019-08-30 | 2024-03-08 | 重庆山堆石机械制造有限公司 | Anti-disassembly lock clamp for gas meter connecting nut |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |