TW201317067A - Positioning cover for electric drill dustproof cover and dustproof cover using the same - Google Patents
Positioning cover for electric drill dustproof cover and dustproof cover using the same Download PDFInfo
- Publication number
- TW201317067A TW201317067A TW101134362A TW101134362A TW201317067A TW 201317067 A TW201317067 A TW 201317067A TW 101134362 A TW101134362 A TW 101134362A TW 101134362 A TW101134362 A TW 101134362A TW 201317067 A TW201317067 A TW 201317067A
- Authority
- TW
- Taiwan
- Prior art keywords
- electric drill
- dust cover
- cover
- positioning sleeve
- ring
- Prior art date
Links
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
本發明係有關一種電鑽防塵罩之定位套及使用該定位套之防塵罩，尤指一種定位於電鑽之固定部而將電鑽之轉動部圍繞隔離，再供防塵罩連結之設計者。The invention relates to a positioning sleeve for an electric drill dust cover and a dust cover using the same, in particular to a designer positioned at a fixing portion of the electric drill to surround the rotating portion of the electric drill and then connected to the dust cover.
按，使用電鑽所產生之大量粉塵會四處飛散而瀰漫於空氣中，不僅嚴重影響空氣品質，同時影響施工人員之呼吸困難，亦會破壞環境整潔且難以清理；因此，如「圖1」所示之電鑽防塵罩10，其可將電鑽20之鑽頭22包覆於內，並配合該防塵罩上形成有多數個皺褶部，以使該防塵罩按壓後具有彈性回復力，故鑽頭鑽孔時，該防塵罩隨著鑽頭之鑽入的深度來做伸縮調整，仍能頂抵於鑽孔處外，以承接鑽孔時所排出之鑽屑粉塵，待鑽孔畢，則該防塵罩將受皺褶部之彈性回復力作用，回復至將鑽頭包覆狀態且防止鑽屑粉塵掉落；然而，由於習知之防塵罩係直接定位於電鑽20之固定部21，防塵罩整體之軸向尺寸會很長，防塵罩會因鑽孔時所造成之振動，而令防塵罩產生大幅之振動，致使防塵罩之抵牆端密合性不佳，降低其防塵效果。According to the use, the large amount of dust generated by the electric drill will be scattered around the air, which will not only seriously affect the air quality, but also affect the breathing difficulties of the construction personnel. It will also damage the environment and make it difficult to clean up. Therefore, as shown in Figure 1. The electric drill dust cover 10 can cover the drill bit 22 of the electric drill 20 and cooperate with the dust cover to form a plurality of wrinkles, so that the dust cover has elastic restoring force after being pressed, so that the drill bit is drilled The dust cover is adjusted to be telescopically adjusted according to the depth of the drill bit, and can still be pressed against the drill hole to receive the dust of the drill cuttings discharged during the drilling, and the dust cover will be subjected to drilling. The elastic restoring force of the corrugated portion returns to the state of covering the drill bit and preventing the cutting dust from falling; however, since the conventional dust cover is directly positioned on the fixing portion 21 of the electric drill 20, the overall axial dimension of the dust cover will be Very long, the dust cover will cause a large vibration due to the vibration caused by the drilling, which causes the dust cover to have poor adhesion to the wall end and reduce the dustproof effect.
本發明之主要目的，係欲提供一種電鑽防塵罩之定位套，而具有大幅提升防塵罩防塵效果之功效。The main object of the present invention is to provide a positioning sleeve for an electric drill dust cover, which has the effect of greatly improving the dustproof effect of the dust cover.
本發明之另一目的，則具有提升使用者操作安全之功效。Another object of the present invention is to enhance the safety of the user's operation.
本發明之又一目的，係欲提供一種使用前述定位套之電鑽防塵罩，而具有大幅提升防塵效果之功效。Another object of the present invention is to provide an electric drill dust cover using the foregoing positioning sleeve, which has the effect of greatly improving the dustproof effect.
為達上述功效，本發明定位套之結構特徵，係包括有：一套合部，定位於電鑽本體前緣之固定部；以及一支撐部，自該套合部向電鑽之鑽頭之方向延伸所形成，而將電鑽之轉動部予以圍繞隔離，且供防塵罩結合定位者。In order to achieve the above-mentioned effects, the structural features of the positioning sleeve of the present invention include: a set of joints, a fixed portion positioned at the front edge of the electric drill body; and a support portion extending from the sleeve portion toward the drill bit of the electric drill Formed, and the rotating portion of the electric drill is surrounded and isolated, and the dust cover is combined with the locator.
此外，進一步於該支撐部外端段外擴形成有銜接環體，而該銜接環體內部成為與防塵罩內部連通之集塵槽；其中，該銜接環體設有連通該集塵槽之洩風口，且相對該洩風口設置有過濾棉，該銜接環體外周緣形成有供防塵罩螺合連結之外螺紋。又，該支撐部內部相對電鑽之轉動部設置有軸承。另，該套合部緊配定位於電鑽之固定部，並於該套合部設置一增加緊配程度之彈性套環。再者，該支撐部為柵條狀或筒狀，且令該定位套可透光。In addition, a connecting ring body is further formed on the outer end of the supporting portion, and the inside of the connecting ring body is a dust collecting groove communicating with the inside of the dust cover; wherein the connecting ring body is provided with a drain connecting the dust collecting groove The tuyere is provided with a filter cotton relative to the air outlet, and the outer circumference of the adapter ring is formed with a thread for the screw cover to be screwed. Further, a bearing is provided inside the support portion with respect to the rotating portion of the electric drill. In addition, the fitting portion is tightly positioned on the fixing portion of the electric drill, and an elastic collar for increasing the tightness degree is disposed in the fitting portion. Furthermore, the support portion is in the form of a grid or a cylinder, and the positioning sleeve is permeable to light.
另者，本發明防塵罩之結構特徵，係包括有：一套合部，定位於電鑽本體前緣之固定部；一支撐部，自該套合部向電鑽之鑽頭之方向延伸所形成，而將電鑽之轉動部予以圍繞隔離，且供防塵罩結合定位；以及一防塵罩，連結於該支撐部而包括有：一固定座，結合定位於該支撐部；一伸縮套，包括前端之抵牆環部、前段之集塵部及尾段之皺褶部，該抵牆環部形成有鑽頭穿伸口與頂推件定位槽，該集塵部接續於該抵牆環部而為頭小尾大之圓錐形型態，該皺褶部接續於該集塵部而為口徑小於該集塵部尾端之直筒形型態，並將該皺褶部尾端連結於該固定座；以及一頂推件，將其定位端連結於該固定座，而令其自由端與該伸縮套之抵牆環部連結者。In addition, the structural features of the dust cover of the present invention include: a set of joints, which are positioned at a fixed portion of the front edge of the electric drill body; and a support portion formed by extending the sleeve portion toward the drill bit of the electric drill, and The rotating portion of the electric drill is surrounded and separated, and the dust cover is combined and positioned; and a dust cover is coupled to the supporting portion and includes: a fixing seat coupled to the supporting portion; and a telescopic sleeve including the front end of the wall a ring portion, a dust collecting portion of the front portion, and a wrinkle portion of the tail portion, wherein the ring wall portion is formed with a drill piercing opening and a pushing member positioning groove, and the dust collecting portion is connected to the ring wall portion to be a small tail a conical shape, the corrugated portion is continuous with the dust collecting portion and has a straight cylindrical shape with a diameter smaller than a tail end of the dust collecting portion, and the tail end of the corrugated portion is coupled to the fixing seat; and a pushing And attaching the positioning end thereof to the fixing seat, and connecting the free end thereof to the wall ring portion of the telescopic sleeve.
然而，進一步於該支撐部外端段外擴形成有銜接環體，且於該銜接環體外周緣形成有供防塵罩螺合連結之外螺紋，而該防塵罩之固定座相對該銜接環體外周緣之外螺紋形成有內螺紋；其中，該頂推件為彈簧，且令該防塵罩可透光。Further, an engaging ring body is further formed on the outer end of the supporting portion, and a thread for the screw cover is integrally formed on the outer periphery of the connecting ring, and the fixing seat of the dust cover is opposite to the outer periphery of the connecting ring The outer thread is formed with an internal thread; wherein the pushing member is a spring and the dust cover is permeable to light.
【00010】 首先，請參閱「圖2」～「圖6」所示，本發明之定位套30實施例係可透光而包括有：一套合部31，緊配定位於電鑽20本體前緣之固定部21，並可設置一增加緊配程度之彈性套環311；以及一柵條狀或筒狀之支撐部32，自該套合部31向電鑽20之鑽頭22之方向延伸所形成，而將電鑽20之轉動部23予以圍繞隔離(可供使用者握持)，且供防塵罩40結合定位，另於該支撐部32內部相對電鑽之轉動部23設置有軸承33，可增加結構之穩定性而減少振動；又，進一步於該支撐部32外端段外擴形成有銜接環體322，且於該銜接環體322外周緣形成有供防塵罩40螺合連結之外螺紋323，而該銜接環體322內部成為與防塵罩40內部連通之集塵槽321，並於該銜接環體322設有連通該集塵槽321之洩風口324，又相對該洩風口324設置有過濾棉325者。【00011】 基於如是之構成，該定位套30之設置可讓所連結之防塵罩40之長度縮短，有效降低防塵罩40因鑽孔所造成之振動，俾使防塵罩40之抵牆端穩定密合，而具有大幅提升防塵罩防塵效果之功效。再者，由於電鑽20之轉動部23係被圍繞隔離，使用者可直接握持於該定位套30，另具有提升使用者操作安全之功效。又，本發明之集塵槽321可讓鑽孔時所產生之鑽屑粉塵集中，方便後續之粉塵清潔處理。【00012】 再者，請進一步參閱「圖6」～「圖8」所示，本發明之防塵罩40實施例，係連結於該定位套30之支撐部32而包括有：一固定座41，相對該定位套30之支撐部32之該銜接環體322外周緣之外螺紋323形成有內螺紋411，俾以利用螺合連結而結合定位於該定位套30之支撐部32；一可透光之伸縮套42，可沿著電鑽20之鑽頭22軸向伸縮，而包括前端之抵牆環部421、前段之集塵部422及尾段之皺褶部423，該抵牆環部421形成有鑽頭穿伸口4211與頂推件定位槽4212，該集塵部422接續於該抵牆環部421而為頭小尾大之圓錐形型態，該皺褶部423接續於該集塵部422而為口徑小於該集塵部422尾端之直筒形型態，並將該皺褶部423尾端連結於該固定座41；以及一諸如彈簧之頂推件43，將其定位端連結於該固定座41，而令其自由端與該伸縮套42之抵牆環部421連結，俾以提供該伸縮套42回復初始狀態之回復力者。【00013】 綜上所述，本發明所揭示之技術手段，確具「新穎性」、「進步性」及「可供產業利用」等發明專利要件，祈請 鈞局惠賜專利，以勵發明，無任德感。【00014】 惟，上述所揭露之圖式、說明，僅為本發明之較佳實施例，大凡熟悉此項技藝人士，依本案精神範疇所作之修飾或等效變化，仍應包括在本案申請專利範圍內。[00010] First, as shown in FIG. 2 to FIG. 6 , the embodiment of the positioning sleeve 30 of the present invention is light-transmissive and includes: a set of joints 31 that are closely positioned on the front edge of the body of the electric drill 20 The fixing portion 21 may be provided with an elastic collar 311 for increasing the degree of tightness; and a grid-like or cylindrical supporting portion 32 formed by extending the fitting portion 31 toward the drill bit 22 of the electric drill 20, The rotating portion 23 of the electric drill 20 is surrounded and isolated (for the user to hold), and the dust cover 40 is combined and positioned, and the rotating portion 23 of the electric drill is disposed inside the supporting portion 32 to provide a bearing 33, which can increase the structure. Further, the vibration is reduced by the expansion; further, the engagement ring body 322 is further formed on the outer end of the support portion 32, and the outer circumference of the engagement ring body 322 is formed with a thread 323 for the dust cover 40 to be screwed and coupled. The inside of the connecting ring body 322 is a dust collecting groove 321 which communicates with the inside of the dust cover 40. The connecting ring body 322 is provided with a venting opening 324 that communicates with the dust collecting groove 321 , and a filter cotton 325 is disposed opposite to the air venting opening 324 . By. [00011] Based on the configuration, the positioning sleeve 30 is arranged to shorten the length of the attached dust cover 40, thereby effectively reducing the vibration of the dust cover 40 caused by the drilling, so that the dust cover 40 is stably closed to the wall end. It has the effect of greatly improving the dustproof effect of the dust cover. Moreover, since the rotating portion 23 of the electric drill 20 is surrounded by the isolation, the user can directly hold the positioning sleeve 30, and the utility model has the effect of improving the safety of the user operation. Moreover, the dust collecting groove 321 of the present invention can concentrate the drill dust generated during drilling to facilitate subsequent dust cleaning treatment. [0001] Further, as shown in FIG. 6 to FIG. 8 , the embodiment of the dust cover 40 of the present invention is coupled to the support portion 32 of the positioning sleeve 30 and includes a fixing base 41. An external thread 411 is formed on the outer peripheral edge of the engaging ring body 322 of the support portion 32 of the positioning sleeve 30, and is coupled to the supporting portion 32 of the positioning sleeve 30 by a screwing connection; The telescopic sleeve 42 is axially expandable and contractible along the drill bit 22 of the electric drill 20, and includes a front wall ring portion 421, a front dust collecting portion 422 and a tail portion wrinkle portion 423. The abutting ring portion 421 is formed with The drill penetrating opening 4211 and the pushing member positioning groove 4212 are connected to the abutting ring portion 421 and have a conical shape with a small head and a small tail. The corrugated portion 423 is connected to the dust collecting portion 422. a straight cylindrical shape having a smaller diameter than the rear end of the dust collecting portion 422, and the tail end of the corrugated portion 423 is coupled to the fixing base 41; and a pushing member 43 such as a spring, and the positioning end thereof is coupled to the fixing portion The seat 41 is connected to the wall ring portion 421 of the telescopic sleeve 42 to provide the telescopic sleeve 42 to return to the beginning. Restoring force by the state of. [00013] In summary, the technical means disclosed in the present invention have the invention patents such as "novelty", "progressiveness" and "available for industrial use", and pray for the patent to encourage the invention. There is no sense of morality. The above drawings and descriptions are merely preferred embodiments of the present invention, and those skilled in the art who are familiar with the art, the modifications or equivalent changes made according to the spirit of the present invention should still include the patent application in this case. Within the scope.
10．．．防塵罩10. . . Dust cover
20．．．電鑽20. . . Electric drill
21．．．固定部twenty one. . . Fixed part
22．．．鑽頭twenty two. . . drill
23．．．轉動部twenty three. . . Rotating part
30．．．定位套30. . . Positioning sleeve
31．．．套合部31. . . Fitting
311．．．彈性套環311. . . Elastic collar
32．．．支撐部32. . . Support
321．．．集塵槽321. . . Dust collector
322．．．銜接環體322. . . Coupling ring
323．．．外螺紋323. . . External thread
324．．．洩風囗324. . . Ventilation
325．．．過濾棉325. . . filter sponge
33．．．軸承33. . . Bearing
40．．．防塵罩40. . . Dust cover
41．．．固定座41. . . Fixed seat
411．．．內螺紋411. . . internal thread
42．．．伸縮套42. . . Telescopic sleeve
421．．．抵牆環部421. . . Wall ring
4211．．．鑽頭穿伸口4211. . . Drill bit
4212．．．頂推件定位槽4212. . . Pusher positioning groove
422．．．集塵部422. . . Dust collection department
423．．．皺褶部423. . . Wrinkle
43．．．頂推件43. . . Pusher
【00015】 圖1係習知電鑽防塵罩之結構說明圖。圖2係本發明定位套之結構立體示意圖(一)。圖3係本發明定位套之結構立體示意圖(二)。圖4係本發明定位套之結構剖示圖。圖5係本發明定位套與防塵罩之結構立體分解圖。圖6係本發明定位套與防塵罩之使用狀態示意圖。圖7係本發明定位套與防塵罩之結構剖示圖(鑽孔前)。圖8係本發明定位套與防塵罩之結構剖示圖(鑽孔中)。[00015] FIG. 1 is a structural explanatory view of a conventional electric drill dust cover. 2 is a perspective view showing the structure of the positioning sleeve of the present invention (1). 3 is a perspective view showing the structure of the positioning sleeve of the present invention (2). Figure 4 is a cross-sectional view showing the structure of the positioning sleeve of the present invention. Fig. 5 is an exploded perspective view showing the structure of the positioning sleeve and the dust cover of the present invention. Fig. 6 is a schematic view showing the state of use of the positioning sleeve and the dust cover of the present invention. Figure 7 is a cross-sectional view showing the structure of the positioning sleeve and the dust cover of the present invention (before drilling). Figure 8 is a cross-sectional view (in the borehole) of the positioning sleeve and the dust cover of the present invention.
20．．．電鑽20. . . Electric drill
21．．．固定部twenty one. . . Fixed part
22．．．鑽頭twenty two. . . drill
23．．．轉動部twenty three. . . Rotating part
30．．．定位套30. . . Positioning sleeve
31．．．套合部31. . . Fitting
311．．．彈性套環311. . . Elastic collar
32．．．支撐部32. . . Support
321．．．集塵槽321. . . Dust collector
322．．．銜接環體322. . . Coupling ring
324．．．洩風口324. . . Air outlet
325．．．過濾棉325. . . filter sponge
33．．．軸承33. . . Bearing
40．．．防塵罩40. . . Dust cover
41．．．固定座41. . . Fixed seat
42．．．伸縮套42. . . Telescopic sleeve
421．．．抵牆環部421. . . Wall ring
4211．．．鑽頭穿伸口4211. . . Drill bit
4212．．．頂推件定位槽4212. . . Pusher positioning groove
422．．．集塵部422. . . Dust collection department
423．．．皺褶部423. . . Wrinkle
43．．．頂推件43. . . Pusher
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101134362A TW201317067A (en) | 2011-10-28 | 2012-09-19 | Positioning cover for electric drill dustproof cover and dustproof cover using the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100139273 | 2011-10-28 | ||
| TW101134362A TW201317067A (en) | 2011-10-28 | 2012-09-19 | Positioning cover for electric drill dustproof cover and dustproof cover using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201317067A true TW201317067A (en) | 2013-05-01 |
| TWI494180B TWI494180B (en) | 2015-08-01 |
Family
ID=48871651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101134362A TW201317067A (en) | 2011-10-28 | 2012-09-19 | Positioning cover for electric drill dustproof cover and dustproof cover using the same |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TW201317067A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521805A (en) * | 2013-09-22 | 2014-01-22 | 孙争鸣 | Dust collection type electrical drilling machine |
| CN103769648A (en) * | 2014-02-10 | 2014-05-07 | 陈科 | Novel electric drill |
| CN106964816A (en) * | 2017-05-19 | 2017-07-21 | 苏州健雄职业技术学院 | A kind of electric drill for taking positioning retracting cylinder |
| CN108296523A (en) * | 2018-01-26 | 2018-07-20 | 江苏金丰机电有限公司 | A kind of high-adaptability high-efficient noise-reducing electric drill |
| CN108633687A (en) * | 2018-05-08 | 2018-10-12 | 韦强 | Impact drill and its application method |
| CN108818964A (en) * | 2018-07-20 | 2018-11-16 | 合肥耀世同辉科技有限公司 | A kind of building punching dust-proof device |
| CN109014333A (en) * | 2018-10-10 | 2018-12-18 | 南安市谷隆工业设计有限公司 | A kind of anti-offset dust protection of pipe equipment of multifunction drill |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135433Y (en) * | 1992-08-24 | 1993-06-09 | 王扬安 | Dust collector for percussion drill |
| CN2208480Y (en) * | 1994-12-01 | 1995-09-27 | 石熠炯 | Dust suction device for percussion drill |
| CN2227011Y (en) * | 1995-05-19 | 1996-05-15 | 张毓华 | Hammering electric drilling tool with dust collecting device |
| CN2491179Y (en) * | 2001-05-25 | 2002-05-15 | 王茂生 | Electric tool dust collector |
| CN2486278Y (en) * | 2001-06-15 | 2002-04-17 | 燕琼 | Automatic dust collector for electric hammer |
| TWM277539U (en) * | 2005-04-27 | 2005-10-11 | Fu-Chuan Huang | Multi-purpose electric drill dust-proof cover structure |
| TWM308804U (en) * | 2006-05-15 | 2007-04-01 | Hsinn Aii Entpr Co Ltd | Dust collection hood for power drill |
| TWM329488U (en) * | 2006-11-20 | 2008-04-01 | zheng-yang Xu | Improved structure of dust collecting/removing apparatus for the electric drill |
| CN200995291Y (en) * | 2007-02-08 | 2007-12-26 | 沈德辉 | Washer of drilling hole |
| CN201863191U (en) * | 2010-11-25 | 2011-06-15 | 孔德贵 | Dustproof device of electric hammer |
-
2012
- 2012-09-19 TW TW101134362A patent/TW201317067A/en not_active IP Right Cessation
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521805A (en) * | 2013-09-22 | 2014-01-22 | 孙争鸣 | Dust collection type electrical drilling machine |
| CN103769648A (en) * | 2014-02-10 | 2014-05-07 | 陈科 | Novel electric drill |
| CN106964816A (en) * | 2017-05-19 | 2017-07-21 | 苏州健雄职业技术学院 | A kind of electric drill for taking positioning retracting cylinder |
| CN108296523A (en) * | 2018-01-26 | 2018-07-20 | 江苏金丰机电有限公司 | A kind of high-adaptability high-efficient noise-reducing electric drill |
| CN108296523B (en) * | 2018-01-26 | 2019-05-03 | 江苏金丰机电有限公司 | A kind of high-adaptability high-efficient noise-reducing electric drill |
| CN108633687A (en) * | 2018-05-08 | 2018-10-12 | 韦强 | Impact drill and its application method |
| CN108633687B (en) * | 2018-05-08 | 2020-08-18 | 浙江中星制针股份有限公司 | Impact drill and method of use thereof |
| CN108818964A (en) * | 2018-07-20 | 2018-11-16 | 合肥耀世同辉科技有限公司 | A kind of building punching dust-proof device |
| CN109014333A (en) * | 2018-10-10 | 2018-12-18 | 南安市谷隆工业设计有限公司 | A kind of anti-offset dust protection of pipe equipment of multifunction drill |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI494180B (en) | 2015-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012142861A1 (en) | Position-fixing sleeve for electric drill dust cover and dust cover using said sleeve | |
| TW201317067A (en) | Positioning cover for electric drill dustproof cover and dustproof cover using the same | |
| JP3179222U (en) | Dust collecting cover for electric tools | |
| CN201602723U (en) | Structure for clamping cotton strip frame for mop and mophead | |
| CN207297574U (en) | A kind of multi-functional installation bolt | |
| CN103479309A (en) | Broom | |
| CN205903232U (en) | House cleaner | |
| CN203043715U (en) | Easily detached filtering net | |
| CN203421368U (en) | Special connector for expansion pipe | |
| CN205935590U (en) | Four unification carbide raked joint instruments | |
| CN205915284U (en) | Minor diameter pumps dismounting device of natural gamma ray spectral logging appearance | |
| CN203557352U (en) | Aircraft skin drilling auxiliary positioning and drilling cutting collecting device | |
| CN103085039A (en) | Positioning sleeve for electric drill dust covers | |
| CN202781087U (en) | Dust-collection hood of electric hand tool | |
| CN206214399U (en) | A kind of moxibustion massage stick | |
| CN205685226U (en) | Lockset positioning sleeve | |
| CN205842026U (en) | There is the water pipe head of two kinds of fixing connected modes | |
| CN103982717B (en) | Pipe connecting component | |
| CN203029078U (en) | Shower room with basin floor drain mechanism | |
| CN214498935U (en) | Connecting part for power head of raise boring machine | |
| CN203361273U (en) | Stink-proof mechanical seal floor drain excellent in leakproofness and easy to clean | |
| CN104741660A (en) | Dust sucking device fitting electric drill for use | |
| CN206503188U (en) | A kind of single-hole wash basin water tap attachment means | |
| CN219151116U (en) | Dust cover convenient to dismantle | |
| CN210599170U (en) | Cooling water tank structure for diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |