CN2661099Y - Line traffic control opener - Google Patents
Line traffic control opener Download PDFInfo
- Publication number
- CN2661099Y CN2661099Y CN 200320128934 CN200320128934U CN2661099Y CN 2661099 Y CN2661099 Y CN 2661099Y CN 200320128934 CN200320128934 CN 200320128934 CN 200320128934 U CN200320128934 U CN 200320128934U CN 2661099 Y CN2661099 Y CN 2661099Y
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- Prior art keywords
- handle
- jaw
- pull bar
- pulling
- brake cable
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Abstract
The utility model discloses a control-by-wire mouth gag, which pertains to medical device field and relates to a medical automatic opening oral cavity apparatus. The utility model solves the problem that the existing medical mouth gag has low automation degree and is easy to damage teeth. The mouth gag consists of two rotary jaws, a V-shaped clamp arm, a pull plate and a pull rod, a spring, a cylindrical handle, a brake cable comprising a brake line and a sheath, a deceleration nut and a deceleration screw, an adjustable speed motor and a control circuit. The jaws, the three end of the V-shaped clamp arm, the two ends of the pull plate, and the crossing end of the handle and the inner pull rod are equipped with shaft holes and are connected each other by a shaft and a shaft sleeve. The pull rod and the spring are moved flexibly into the handle hole. The radial through hole of the pull rod is connected with the control brake line. The other end of the brake line is connected with the deceleration nut and the deceleration screw. The deceleration screw is connected with the adjustable speed motor pivot by the shaft sleeve. When the mouth gag is used, two jaws can be also sleeved with sheaths to prevent from cross infection. The utility model is used for the mouth, throat and emergency departments, and has flexible, convenient and safe operation.
Description
Technical field
This utility model belongs to the utensil that the medical device field relates to medical mouth open, specifically is a kind of line traffic control gag.
Background technology
Gag is sections such as Emergency Medical Dept., the department of stomatology, throat operating theater instruments commonly used, has a lot of method and apparatus to make patient's mouth open big when the patient needs mouth open inspection, treatment or operation and keeps certain hour.
The Chinese patent patent No. 98204798.3 disclosed " throat retractor " promptly be on the arcuate openings device, increased the pressure tongue, drawn larynx, illumination section constitutes.
China Patent No. 2233722 disclosed " novel operation on oral cavity gag " is on the basis of Vickers gag, with end dissociative on the arch form supporting frame and prolong its arc form long axis and make between tooth hook displacement field to enlarge and to add optical fibers and provide art wild illumination.
China Patent No. 2291891 disclosed " frame-type gag " then is connected into quadra with diaxon and is added the adjustable screw handle by three metallic plates to be formed, and during use gag tongue arm is put into mouth, and the rotating screw handle opens the oral cavity.
Comprehensive present various gags, though characteristics that each tool is certain or improvement, not enough flexibly with automatic, the gag jaw can not be because of the high and low support of people Yin Ya in addition in the operation, cause and cause supraversion support force big and pain even damage easily, the gag that has in addition sterilization is cumbersome.
Summary of the invention
The present invention provides a kind of and goes slick in order to address the above problem design, the high line traffic control gag of degree automatically, its jaw can rotate according to patient's tooth depth of parallelism, disperses the pressure to tooth, but two jaws and suit disposable shield sleeve, available buffer is simplified sterilizing operation and is avoided cross infection the pressure of tooth.
Design technology project of the present utility model is: the line traffic control gag is by two rotating jaws, V shaped clamp arm, pulling-on piece and pull bar, spring, columniform handle, the lock cable that comprises brake cable and crust, reduction nut and screw rod, buncher and control circuit constitute, its jaw, V shaped clamp arm three ends, the pulling-on piece two ends, handle and inner pull bar intersection end thereof have all designed axis hole and have been rotationally connected with axle and axle sleeve, pull bar, telescopic spring is displaced in the handle vestibule, articulate the control brake cable in the bull drilling and backward pulls radial direction through hole, brake cable end in addition is bolted in reduction nut, and the deceleration screw rod is connected in the buncher pivot of control circuit control again with axle sleeve.
Two jaws of the present utility model are flat duckbill, and its jaw planar design has two clamping through holes, and an end is designed to have the pivot of draw-in groove, can be installed in the axis hole of two V shaped clamp arm front ends with snap ring during installation.Also design the sheath that once uses on two jaws, designing on the two clamping through hole sheaths on the corresponding jaw has two card posts, and three faces have the right angle flanging, Yi Bian have the sheath tail, can be installed in during use on the support facing of jaw.Three ends of two V shaped clamp arms have all designed axis hole, its V front end is installed the axis hole thickening of jaw to gain in strength, V turning end mill mouth, mill during assembling in the mouth and to insert the little blunt end of pulling-on piece and link to each other, in the convex notch of handle front end makes up tong the arm installation axle hole, link to each other with the handle three behind the back end mill mouth of a V shaped clamp arm and another V shaped clamp arm opposite rear end interleave with axle and axle sleeve with axle.Two pulling-on pieces are washed into by sheet metal, its two ends are designed to large and small round end, little round end and pulling-on piece are tangent on one side, each links to each other auger spindle hole, the center of circle with axle and axle sleeve with V shaped clamp arm turning end mill mouth grafting back, big round end and pulling-on piece both sides are tangent, auger spindle hole, the center of circle, two big round ends are connected the three with axle and axle sleeve with the jaw prong of pull bar in the pulling-on piece shifting chute of handle during assembling.
The handle of this line traffic control gag is cylindrical, its downside is with the cutting ferrule handle that is spirally connected, design has manual control to open, stop, run jointly the pass on the handle, be connected with the control cable in the handle, design has spring, pull bar, receiving opening in the middle of the handle, the spring pull bar is pressed, is stretched and move wherein, end mill is square before the handle, mill the convex notch between a square opposite side, end, vertical slot two limit is drilled with the rear end installation axle hole of two tong arms, handlebar portion is drilled with the big round end of two pulling-on pieces and combines the axle shifting chute with the pull bar prong, so that the jaw pulling-on piece is installed wherein and turned, stretching makes the jaw folding.Can be spirally connected with handle end cap when establishing the female thread assembling in the handle rear end mouth.It is flat so that peaceful tight the installation that handle end cap is that cylindrical peripheral is milled spanner, one end is processed with external screw thread, can be spirally connected with handle rear end during assembling, it axially bores the Pear-Shaped through hole, add rubber line ball circle in addition in the port and be processed with female thread and after passing brake cable and crust thereof, be spirally connected with the line ball bolt, line ball bolt one end has pin thread, and other holds the periphery annular knurl, axially is drilled with brake cable and crust through hole thereof.
Pull bar is made of jaw, pull bar rod, bull drilling and backward pulls, vertical jaw prong design has the axis hole that is connected with the big blunt end of pulling-on piece, design screw and pull bar rod one end is spirally connected in the shank round platform of jaw, pull bar rod end in addition is spirally connected with bull drilling and backward pulls one end screw, bull drilling and backward pulls end in addition bores the radial direction through hole of placing the lock head, vertical above-mentioned through hole axially bores the L shaped gap that brake cable can pass through, and commercially available brake cable and lock head are installed wherein.
This line traffic control gag spring adopts commercially available stage clip, its external diameter can be positioned in the handle vestibule, internal diameter can contain pull bar and removable flexible, and spring length is got on the limit platform of end roof pressure aperture in handle end cap, holds the round platform that holds out against the pull bar jaw that two jaw closures tightly are advisable in addition.
The control line of line traffic control gag adopts the commercially available lock cable that comprises brake cable and crust, its lock head places the radial direction through hole of bull drilling and backward pulls during assembling, brake cable then pull out by axial L shaped gap and in handle end lid aperture pass to the brake cable crust, brake cable crust one end is fixed by rubber line ball circle and line ball bolt, brake cable end in addition is bolted on reduction nut and the slide block, brake cable crust end in addition is installed in the through hole of screw bracket, also be provided with on the screw bracket two travel switches and with the contact of bumping out of slide block, the in addition end of deceleration screw rod is connected in the pivot of buncher with axle sleeve, and deceleration screw bracket and buncher then are fixed in operation table, on platform or the chair.
The control circuit of line traffic control gag is exported two ends serial connections electric fuse, on and off switch, is driven, stops, runs jointly pass, two relays in parallel and two travel switches and constitute by dc source, and two normal opened contacts of two relays respectively are connected into reversing switch again buncher is connected to positive and negative two outfans of dc source.
Advantage and good effect: the utlity model has following advantage compared with the prior art:
The adjustment of line traffic control gag go slick, laborsaving, automaticity is high, the thin opening of jaw is easy.
2. jaw can rotational support because of people's tooth height, prevents that the supraversion support force from causing pain and damage greatly.
3. but suit disposable shield sleeve on two jaws, the available buffer teeth pressure is simplified sterilization, is prevented cross infection.
Handle in the oral cavity one side, do not influence inspection, treatment and surgical field of view.
Description of drawings
Fig. 1 is this utility model general assembly schematic top plan view.
Fig. 2 is this utility model general assembly schematic side view.
Fig. 3 is this utility model jaw front view.
Fig. 4 is this utility model jaw side view.
Fig. 5 is this utility model tong arm front view.
Fig. 6 is this utility model tong arm side view.
Fig. 7 is this utility model tong arm front view in addition.
Fig. 8 is this utility model tong arm side view in addition.
Fig. 9 is this utility model pulling-on piece front view.
Figure 10 is this utility model pulling-on piece side view.
Figure 11 is this utility model handle front view.
Figure 12 is this utility model handle side view.
Figure 13 is this utility model handle vertical view.
Figure 14 is this utility model handle side view.
Figure 15 is this utility model pull bar exploded view.
Figure 16 is this utility model line ball bolt front view.
Figure 17 is this utility model handle end cap front view.
Figure 18 is this utility model pincers cover front view.
Figure 19 is this utility model pincers cover side view.
Figure 20 is this utility model reduction nut, screw rod and support thereof and travel switch front view.
Figure 21 is this utility model reduction nut, screw rod and support thereof and travel switch vertical view.
Figure 22 is this utility model control circuit figure.
Among each figure:
1: jaw, 1a: the clamping through hole,
1 ': sheath, 1 ' a: the card post,
1 ' b: flanging, 1 ' c: the sheath tail,
2: pivot, axis hole, 2a: draw-in groove,
3:V clamp arm (tong arm), 3a: mill mouthful,
4: axle, axle sleeve, axis hole, 5: pulling-on piece,
6: axle, axis hole, axle sleeve, 7: jaw,
7a: prong, 7b: screw,
7c: round platform, 8: pull bar,
8a: screw thread, 8b: screw thread,
8c: screw rod rod, 9: shifting chute,
10: spring, 11: open, stop, run jointly the pass,
12: handle, 12a: the convex notch,
12b: female thread, 13: cutting ferrule,
14: handle end cap, 14a: female thread,
14b: Pear-Shaped through hole, 14c: external screw thread,
15: line ball bolt, 15a: external screw thread,
15b: through hole, 16: brake cable,
16a: crust, 17: the control cable,
18: handle (handle), 19: axis hole, axle, axle sleeve,
20: bull drilling and backward pulls, 20a: screw,
20b: radial direction through hole, 20c:L shape gap,
21: rubber line ball circle, 22: slide block,
23: reduction nut, 24: support (screw bracket),
25: axle sleeve, 26: the deceleration screw rod,
27: chute, X
1: the 1st travel switch,
X
2: the 2nd travel switch, J
1: the 1st relay,
J
2: the 2nd relay, J
1k: the 1st relay normally open contact,
J
2k: the 2nd relay normally open contact, M: buncher,
DC: dc source, K: on and off switch.
Specific implementation method
In conjunction with the accompanying drawings as shown in the figure, this line traffic control gag is made of jaw (1), V shaped clamp arm (3), pulling-on piece (5) and pull bar (8), spring (10), columniform handle (12), lock cable (comprising brake cable and crust 16,16a), reduction nut (23), deceleration screw rod (26), buncher (M) and the control circuit of rotatable two correspondences.Wherein jaw (7) prong (7a) of jaw (1), V shaped clamp arm (3) three ends, pulling-on piece (5) two ends, handle (12) and pull bar (8) end all designs has axis hole to link to each other with axle and axle sleeve (2,4,6,19), pull bar (8) and spring (10) move, stretch in the vestibule of handle (12), articulate brake cable (16) in the radial direction through hole (20b) of bull drilling and backward pulls (20), brake cable (16) end in addition is bolted in reduction nut (23), and deceleration screw rod (26) is connected in the pivot of the buncher (M) of control circuit control again with axle sleeve (25).
Two jaws of the present utility model (1) are flat duckbill, and two clamping through holes (1a) are arranged on it, and end design has the pivot (2) of draw-in groove (2a), can be installed in the front end axis hole (2) of two V shaped clamp arms (3) with snap ring during installation.Three ends of V shaped clamp arm (3) have all designed axis hole (2,4,19), the V front end is installed axis hole (2) thickening of jaw (1) to gain in strength, V turning end mill mouth (3a) assembling the time is wherein inserted the little blunt end of pulling-on piece (5) and is linked to each other with axle (4), links to each other with the handle three with axle and axle sleeve (19) in handle (12) front end convex notch (12a) both sides installation axle hole (19) behind the back end mill mouth of a V shaped clamp arm (3) and another V shaped clamp arm (3) the opposite rear end interleave.Two pulling-on pieces (5) two ends are designed to large and small round end, little round end and pulling-on piece are tangent on one side, auger spindle hole, the center of circle (4), two little round ends are connected with axle and axle sleeve (4) with turning end mill mouth (3a) the grafting back of V shaped clamp arm (3) when assembling as mentioned above, big round end and pulling-on piece both sides are tangent, auger spindle hole, the center of circle (6), two big round ends link to each other with axle and axle sleeve (6) three with the prong (7a) of pull bar jaw (7) in the pulling-on piece shifting chute (9) of handle (12) during assembling.Handle (12) is cylindrical, its downside is with cutting ferrule (13) handle (18) that is spirally connected, handle (18) is provided with manual control and opens, stop, run pass (11) jointly, be connected with control cable (17) in the handle, design spring (10) in the middle of the handle (12), pull bar (8) through hole, spring (10) pull bar (8) pressure stretch, be displaced into wherein, the preceding end mill of handle (12) is square, mill convex notch (12a) between a square opposite side, end, vertical slot (12a) two limit is drilled with tong arm (3) rear end installation axle hole (19), the two big round ends that handle (12) bar portion is drilled with two pulling-on pieces (5) combine axle (6) shifting chute (9) with the pull bar prong, design female thread (12b) in handle (12) rear port, be spirally connected with handle end cap (14), handle end cap (14) is cylindrical, it is flat that periphery is milled spanner, axially bore Pear-Shaped through hole (14b), one end has external screw thread (14c) and handle (12) rear end to be spirally connected, add in addition rubber line ball circle (21) in the port and be processed with female thread (14a) at brake cable (16) and crust (16a) passes line ball bolt (15) and handle end cap (14) back is spirally connected with line ball bolt (15), line ball bolt (15) one ends have external screw thread (15a), other holds annular knurl, axially bores brake cable (16) and crust (16a) thereof, through hole (15b).Pull bar (8) is by jaw (7), pull bar rod (8c), bull drilling and backward pulls (20) constitutes, vertical prong (7a) design has the axis hole (6) that is connected with the big blunt end of pulling-on piece (5), design screw (7b) is spirally connected with pull bar rod (8c) threaded one end (8a) in the shank round platform (7c) of jaw, pull bar rod (8c) holds screw thread (8b) and bull drilling and backward pulls (20) one end screws (20a) to be spirally connected in addition, bull drilling and backward pulls (20) end in addition radially is drilled with the radial direction through hole (20b) of placing the lock head, vertical radial direction through hole (20b) axially bores the L shaped gap (20c) that brake cable (16) can pass through, and commercially available brake cable and lock head are installed wherein.Spring (10) adopts commercially available stage clip, its external diameter can be positioned in handle (12) vestibule, internal diameter can contain pull bar (8) and removable flexible, spring (10) length is got an end roof pressure in handle end cap (14) on the platform of aperture limit, and end holds out against on the round platform (7c) of jaw (7) of pull bar (8) two jaw closures are as the criterion in addition.The control line of line traffic control gag adopts the commercially available lock cable that comprises brake cable (16) and crust (16a), the lock head is put in bull drilling and backward pulls (20) radial direction through hole (20b), brake cable (16) is pulled out by axial L shaped gap (20c) that aperture passes to brake cable crust (16a) in handle end lid (14), brake cable crust (16a) is fixed by rubber line ball circle (21) and line ball bolt (15), brake cable (16) end in addition is bolted on reduction nut (23) and the slide block (22), the brake cable crust is held in the through hole that is installed on the screw bracket (24) in addition, also is provided with the 1st and the 2nd travel switch X on the screw bracket (24)
1, X
2And with chute (27) in slide block (22) bump out the contact, deceleration screw rod (26) end in addition is connected in the pivot of buncher M with axle sleeve (25).Deceleration screw bracket (24) and buncher M then are fixed on operation table, platform or the chair.
The control circuit of this line traffic control gag is exported the 1st and the 2nd travel switch X that two ends are connected in series electric fuse, on and off switch K, open, stop, run jointly pass (11), two parallel connections by dc source DC
1, X
2And the 1st, the 2nd relay J
1, J
2Constitute two normal opened contact J of the 1st and the 2nd relay
1K, J
2KBe connected into reversing switch again buncher M is connected to positive and negative two outfans of dc source DC.
Also design the sheath (1 ') that once uses on two jaws of the present utility model (1), two clamping through holes (1a) sheaths (1 ') on the corresponding jaw (1) are gone up design two card posts (1 ' a), three designs have right angle flanging (1 ' b), have on one side the sheath tail (1 ' c), be installed in during use on the support facing of jaw (1).
Use of the present utility model operation operation process is as follows: at first open dc source DC K switch, because of the jaw of initial line traffic control gag modulated to closure state, travel switch X
2Disconnect, manual start-stop was run jointly and was closed spanner it is removed to the one side of opening this moment, and dc source DC is through relay, travel switch J
1, X
1Along separate routes, start-stop is run pass, on and off switch K, electric fuse connection, J jointly
1Normal opened contact J
1KConnect, buncher M starts, its pivot rotates warp beam sleeve (25) transmission rotates deceleration screw rod (26), drive reduction nut (23) moves to right and makes brake cable (16) pull pull bar (8), jaw (7) by axle (6) pulling two pulling-on pieces (5), draw back jaw (1) by axle (4) pulling V shaped clamp arm (3) again, treat that jaw (1) opens to the needs aperture, open out, stop, run jointly the pass, (slide block (22) that reduction nut (23) upper edge chute (27) moves when holding, stop, running jointly the pass as continuing manual control can touch and start Cheng Kaiguan X to stop buncher M
1The contact of bumping out make buncher M when jaw opens maximum, stop to power up and rotating).When the closed jaws of needs (1), oppositely move out, stop, run jointly one side of Guan Zhihe, make dc source DC through relay J
2, travel switch X
2Along separate routes, start-stop is run pass, on and off switch K, electric fuse connection, J jointly
2Energising makes J
2KNormal opened contact is connected, buncher M oppositely powers up and backward rotation, its pivot drives deceleration screw rod (26) counter-rotating by axle sleeve (25) moves to left reduction nut on it (23), brake cable (16) loosens, pull bar (8) promotes to move forward in handle (12) vestibule by compressed spring (10), promote two pulling-on pieces (5) reach through its jaw (7), axle (6), promote V shaped clamp arm by axle (4) again and make jaw (1) closure around axle (19) rotation.(as continuing by opening, stop, run jointly when closing, the slide block (22) that reduction nut (23) upper edge chute (27) moves can touch starts Cheng Kaiguan X
2Make buncher M outage stall, the line traffic control gag does not rerun when jaw is closed.)
Claims (10)
1. line traffic control gag, by jaw, tong arm, handle constitutes, it is characterized in that it is by two rotating jaws, V shaped clamp arm, pulling-on piece and pull bar, spring, columniform handle, the lock cable that comprises brake cable and crust, deceleration screw rod and nut, buncher and control circuit constitute, jaw wherein, V shaped clamp arm three ends, the pulling-on piece two ends, axis hole is all designed with axle in handle and inner pull bar prong end thereof, axle sleeve is rotationally connected, pull bar, telescopic spring is displaced in the handle vestibule, the pull bar pommel articulates the control brake cable, brake cable end in addition is bolted in reduction nut and screw rod, and the deceleration screw rod is connected in the buncher pivot of control circuit control again with axle sleeve.
2. line traffic control gag according to claim 1, it is characterized in that: its two jaw is flat duckbill, design has two clamping through holes on the jaw plane, and end design has the pivot of draw-in groove, can be connected in the axis hole of two V shaped clamp arm front ends by snap ring during assembling, also design the sheath that once uses on two jaws, two clamping through holes on the corresponding jaw, design has two card posts on the sheath, and three faces have the right angle flanging, have the sheath tail on one side, can be installed in during use on the support facing of jaw.
3. line traffic control gag according to claim 1 is characterized in that: three ends of its two V shaped clamp arm have all designed axis hole, the V front end is installed the axis hole thickening of jaw to gain in strength, V turning end mill mouth, mill during assembling in the mouth and to insert the little blunt end of pulling-on piece and link to each other, in the convex notch of handle front end makes up tong the arm installation axle hole, link to each other with axle and axle sleeve behind end mill mouth and another V shaped clamp arm opposite rear end interleave behind the V shaped clamp arm with the handle three with axle.
4. line traffic control gag according to claim 1, it is characterized in that: its two pulling-on piece is that sheet metal is washed into, two ends are designed to large and small round end, little round end and pulling-on piece are tangent on one side, each links to each other auger spindle hole, the center of circle with the grafting of V shaped clamp arm turning end mill mouth and with axle and axle sleeve, big round end and pulling-on piece both sides are tangent, auger spindle hole, the center of circle, and the big round end of two pulling-on pieces links to each other with axle and axle sleeve with pull bar prong three in the pulling-on piece shifting chute of handle during assembling.
5. line traffic control gag according to claim 1, it is characterized in that: its handle is cylindrical, downside is with the cutting ferrule handle that is spirally connected, handle is provided with manual control and opens, stop, run the pass jointly, the centre is connected with out, stop, run jointly and close the control cable, axially be drilled with spring in the handle, pulling-on piece, receiving opening makes spring, the pull bar compression, be displaced into wherein, end mill is square before the handle, mill the convex notch between a square opposite side, end, vertical slot two limit is drilled with two tong arm rear end installation axle hole, handlebar portion is drilled with the big round end of two pulling-on pieces and combines the axle shifting chute with the pull bar prong, so that tong arm, pulling-on piece is installed and is wherein drawn, stretch, rotate, have female thread and handle end cap to be spirally connected in the handle rear end mouth.
6. line traffic control gag according to claim 5, it is characterized in that: its handle end cap is cylindrical, it is flat that periphery is milled spanner, an end threading, during installation and the handle rear end female thread be spirally connected, it axially bores the Pear-Shaped through hole, handle end cap is encased inside rubber line ball circle and is processed with female thread in the port in addition, and with line ball bolt spiral shell knot, line ball bolt one end is a pin thread after passing brake cable and crust thereof, other holds the periphery annular knurl, axially bores brake cable and crust through hole thereof.
7. line traffic control gag according to claim 1, it is characterized in that: its pull bar is made of jaw, pull bar rod, bull drilling and backward pulls, the prong design of vertical jaw has the axis hole that is connected with the big blunt end of two pulling-on pieces, there is screw and pull bar rod one end to be spirally connected in the shank round platform of jaw, pull bar rod end in addition is spirally connected with screw shank one end screw, screw shank end is in addition bored radial direction through hole, axially bores the L shaped gap that brake cable can pass through, and commercially available brake cable lock head is installed wherein.
8. line traffic control gag according to claim 1 is characterized in that: its spring is a stage clip, external diameter can be positioned in the handle vestibule, spring inside diameter can contain pull bar and removable flexible, spring length is got an end roof pressure and on the platform of aperture limit, is held the round platform that holds out against the pull bar jaw that two jaws are closed tightly in addition and be as the criterion in handle end cap.
9. line traffic control gag according to claim 1, it is characterized in that: its control line adopts the commercially available lock cable that comprises brake cable and crust, its lock head places the bull drilling and backward pulls radial direction through hole during assembling, brake cable is pulled out by axial L shaped gap, aperture passes to the brake cable crust in the handle end lid, brake cable crust one end is fixed by rubber line ball circle and line ball bolt, brake cable end in addition is bolted on reduction nut and the slide block, the brake cable crust is held in the through hole that is installed on the screw bracket in addition, also be provided with on the screw bracket two travel switches and with the contact of bumping out of slide block, the deceleration screw rod is held the pivot that is connected in buncher with axle sleeve in addition, and deceleration screw bracket and buncher are fixed in operation table, on platform or the chair.
10. line traffic control gag according to claim 1, it is characterized in that: its control circuit is exported two ends serial connections electric fuse, on and off switch, is driven, stops, runs jointly passs, two relays in parallel and travel switch and constitute by dc source, and two normal opened contacts of two relays are connected into respectively again that reversing switch is connected to the dc source positive-negative output end with buncher so that commutation power supply and turning round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128934 CN2661099Y (en) | 2003-12-23 | 2003-12-23 | Line traffic control opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128934 CN2661099Y (en) | 2003-12-23 | 2003-12-23 | Line traffic control opener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2661099Y true CN2661099Y (en) | 2004-12-08 |
Family
ID=34349897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320128934 Expired - Fee Related CN2661099Y (en) | 2003-12-23 | 2003-12-23 | Line traffic control opener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2661099Y (en) |
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| CN104306131A (en) * | 2014-10-29 | 2015-01-28 | 武汉大学 | Mouth opener allowing opening degree to be adjusted |
| CN104622418A (en) * | 2015-02-02 | 2015-05-20 | 成都科力夫科技有限公司 | Mouth gag for emergent treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104306131A (en) * | 2014-10-29 | 2015-01-28 | 武汉大学 | Mouth opener allowing opening degree to be adjusted |
| CN104622418A (en) * | 2015-02-02 | 2015-05-20 | 成都科力夫科技有限公司 | Mouth gag for emergent treatment |
| CN105662676A (en) * | 2016-04-18 | 2016-06-15 | 张盘德 | Medical mouth prop with regulating and measuring functions |
| CN108245237A (en) * | 2016-12-28 | 2018-07-06 | 南京森盛医疗设备有限公司 | A kind of high frequency vessel sealing cutter device |
| CN106880334A (en) * | 2017-04-01 | 2017-06-23 | 王新本 | A kind of Respiratory Medicine inspection oral cavity support device |
| CN108078608A (en) * | 2018-01-03 | 2018-05-29 | 王亚军 | A kind of internal and external fixation instrument for orthopaedic medical treatment uses specific purpose tool |
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| CN110652358A (en) * | 2019-10-13 | 2020-01-07 | 杨锐 | Surgical instrument of tumor surgical robot |
| CN113729813A (en) * | 2021-10-08 | 2021-12-03 | 中国人民解放军空军军医大学 | Intranasal craniocerebral operation is with leading out device |
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