CN100338325C - Mechanical interlocking mechanism - Google Patents
Mechanical interlocking mechanism Download PDFInfo
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- CN100338325C CN100338325C CNB2005100098509A CN200510009850A CN100338325C CN 100338325 C CN100338325 C CN 100338325C CN B2005100098509 A CNB2005100098509 A CN B2005100098509A CN 200510009850 A CN200510009850 A CN 200510009850A CN 100338325 C CN100338325 C CN 100338325C
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- bearing
- lockset
- locking mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 68
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010001541 Akinesia Diseases 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009340 pathogen transmission Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The present invention relates to a design of a mechanical interlocking mechanism, which adopts two lockset mechanisms and a universal driving shaft. The front end and the back end of a lockset support frame 1 are respectively and fixedly connected with the upper end of the front lockset mechanism 2 and the upper end of the back lockset mechanism 6; the middle front part, the middle part and the middle back part of the lockset support frame 1 are respectively and fixedly provided with a front bearing support frame 1-1, a middle bearing support frame 1-2 and a back bearing support frame 1-3; the lower ends of the three support frames are respectively and fixedly provided with three linear bearings 5; the universal driving shaft 4 is positioned in the inner hole 5-1 of the holder of the three linear bearings 5; the front end and the back end of the universal driving shaft 4 respectively contact (or loosen) the lower end of the front lockset mechanism 2 and the lower end point of the back lockset mechanism 3; the expansion and the contraction of a lockset tip cone are realized by the cam-ratchet mechanism of the lockset mechanisms, the universal driving shaft generates linkage, and thereby, the interlocking function is realized. The present invention effectively solves the problem that the application of the existing electromagnetic interlocking mechanism is inconvenient in some situation; the present invention has the advantages of high operating reliability and favorable widening properties.
Description
Technical field:
The present invention relates to a kind of mechanical interlocking mechanism, is the mechanical interlocking mechanism that is used for inside and outside door specifically.
Background technology:
For some special occasions, for example dangerous infectious diseases is isolated the inside and outside door of ICU, passes in and out the pathogen transmission that is brought for avoiding personnel, requires two switching self-locking each other, can not open simultaneously; Existing electromagnetism mutual interlocking gear is used on some occasions and is had inconvenience.At present, also there is not the high mechanical interlocking mechanism that is used for inside and outside door of a kind of reliability.
Summary of the invention:
Use the problem that has inconvenience for solving existing electromagnetism mutual interlocking gear on some occasions, the invention provides a kind of mechanical interlocking mechanism, its effect is to guarantee to be provided with two of mutual interlocking gear can not open simultaneously, promptly can not open another door when opening for one.The present invention includes lockset support, preceding locking mechanism, back locking mechanism and universal driving shaft, the front end of the upper end of preceding locking mechanism and lockset support is affixed, and the rear end of the upper end of back locking mechanism and lockset support is affixed; The middle front part of lockset support, middle part and posterior part other country are provided with fore bearing support, middle (center) bearing support and rear bearing rack, the lower end of fore bearing support, middle (center) bearing support and rear bearing rack is installed with the linear axis bearing respectively, and three linear bearings place respectively in the endoporus of three linear axis bearings; Described universal driving shaft places in the retainer endoporus of three linear bearings, and the front-end and back-end of universal driving shaft are respectively with the following end in contact of the lower end of preceding locking mechanism and back locking mechanism or unclamp.Locking mechanism and back locking mechanism are made up of depression bar, bearing, push rod, inclined-plane bar, push rod, axle, fairlead, addendum cone, spring, locking nut before described, the lower end of depression bar is provided with external screw thread, the upper end of push rod is provided with internal thread hole, depression bar is threaded with push rod, and locking nut is threaded with depression bar and places the push rod top; Be provided with axially extending bore in the described bearing, the lower sidewall of bearing has four uniform gathering sills, and the lower end of bearing is provided with four uniform an inclined-plane and four No. two uniform inclined-planes; The lateral surface bottom of described push rod is installed with four uniform extra edge projections, and the lower surface of push rod is provided with eight uniform detent projection, and push rod places in the axially extending bore of bearing, and four one extra edge projections place in the gathering sill; Be provided with axial cavity in the described inclined-plane bar, inclined-plane bar lateral surface is installed with four two uniform extra edge projections, the upper surface of inclined-plane bar is provided with eight No. two uniform detent projection, the inclined-plane bar places in the axially extending bore of bearing, and four two extra edge projections place in the gathering sill, and the crown of eight detent projection is relative respectively with the inclined-plane of eight No. two detent projection; Described push rod lower end is provided with boss No. one, and the lower surface of push rod is provided with axial blind hole, and push rod places in the axially extending bore of the axial cavity of inclined-plane bar and bearing, and the upper surface of a boss engages with the lower surface of inclined-plane bar; Be provided with axial cavity and following pilot hole in the described fairlead, last axial cavity is communicated with following pilot hole, and the top of bearing, push rod, inclined-plane bar, push rod and axle places in the axial cavity; Described axle upper end is a sphere, the axle upper end is positioned at the axial blind hole of push rod, and contact with the upper surface of axial blind hole, the top of axle is provided with boss No. two, the following pilot hole of fairlead is passed in the lower end of axle, matched in clearance between the bottom of axle and the following pilot hole of fairlead, the lower end and the addendum cone of axle are affixed; Spring housing is at axle middle part, the lower surface engages of the upper end of spring and No. two boss, and the lower end of spring engages with the bottom surface of the last axial cavity of fairlead; The bottom of addendum cone is provided with the conical surface.Mechanical interlocking mechanism also has jackscrew, and the lower end of described axle is provided with external screw thread, and the upper surface of addendum cone has the connecting thread hole, and the side of addendum cone has screwed hole, and the lower end of axle is threaded with the upper end of addendum cone, and jackscrew screws in the screwed hole.Mechanical interlocking mechanism also has coupling band, two jackscrews, coupling band is provided with axially extending bore, front portion, the rear portion of coupling band sidewall are respectively equipped with radial screw bore, two screwed holes are communicated with axially extending bore respectively, and described universal driving shaft is made up of leading portion axle and back segment axle, and the front end of leading portion axle is a sphere, the rear end of leading portion axle places the front portion of axially extending bore, the follower head of back segment axle is a sphere, and the front end of back segment axle places the rear portion of axially extending bore, and two jackscrews screw in respectively in two radial screw bore.
The present invention adopts two locking mechanisms and a universal driving shaft, and two locking mechanisms produce interlock by universal driving shaft, the mutual restriction interaction, thus realize interlock function.The frame for movement that the present invention selects for use efficiently solves existing electromagnetism mutual interlocking gear and use the problem that has inconvenience on some occasion, has higher operating reliability and good expansibility.
Description of drawings:
Fig. 1 is an overall structure schematic diagram of the present invention, Fig. 2 is the I portion enlarged drawing of Fig. 1, Fig. 3 is the structural representation of bearing 2-2, Fig. 4 is that the A of Fig. 3 is to view, Fig. 5 is the structural representation of push rod 2-3, Fig. 6 be the B of Fig. 5 to view, Fig. 7 is the structural representation of inclined-plane bar 2-4, Fig. 8 be the C of Fig. 7 to view, Fig. 9 is the structural representation of preceding locking mechanism 2 or back locking mechanism 3.
The specific embodiment:
The specific embodiment one: (referring to Fig. 1-Fig. 9) present embodiment is made up of lockset support 1, preceding locking mechanism 2, back locking mechanism 3 and universal driving shaft 4, the upper end of preceding locking mechanism 2 and the front end of lockset support 1 are affixed, and the rear end of the upper end of back locking mechanism 3 and lockset support 1 is affixed; The middle front part of lockset support 1, middle part and postmedian are installed with fore bearing support 1-1, middle (center) bearing support 1-2 and rear bearing rack 1-3 respectively, the lower end of fore bearing support 1-1, middle (center) bearing support 1-2 and rear bearing rack 1-3 is installed with 6, three linear bearings 5 of linear axis bearing respectively and places respectively in the endoporus 6-1 of three linear axis bearings 6; Described universal driving shaft 4 places in the retainer endoporus 5-1 of three linear bearings 5, and the front-end and back-end of universal driving shaft 4 are respectively with the following end in contact of the lower end of preceding locking mechanism 2 and back locking mechanism 3 or unclamp; Locking mechanism 2 and back locking mechanism 3 are made up of depression bar 2-1, bearing 2-2, push rod 2-3, inclined-plane bar 2-4, push rod 2-5, axle 2-6, fairlead 2-7, addendum cone 2-8, spring 2-9, locking nut 2-10 before described, the lower end of depression bar 2-1 is provided with external screw thread 2-1-1, the upper end of push rod 2-3 is provided with internal thread hole 2-3-1, depression bar 2-1 is threaded with push rod 2-3, and locking nut 2-10 is threaded with depression bar 2-1 and places push rod 2-3 top; Be provided with axially extending bore 2-2-4 in the described bearing 2-2, the lower sidewall of bearing 2-2 has four uniform gathering sill 2-2-1, and the lower end of bearing 2-2 is provided with four uniform an inclined-plane 2-2-2 and four No. two uniform inclined-plane 2-2-3; The lateral surface bottom of described push rod 2-3 is installed with four uniform extra edge projection 2-3-1, the lower surface of push rod 2-3 is provided with eight uniform detent projection 2-3-2, push rod 2-3 places in the axially extending bore 2-2-4 of bearing 2-2, and four one extra edge projection 2-3-1 place in the gathering sill 2-2-1; Be provided with axial cavity 2-4-3 in the described inclined-plane bar 2-4, inclined-plane bar 2-4 lateral surface is installed with four two uniform extra edge projection 2-4-1, the upper surface of inclined-plane bar 2-4 is provided with eight No. two uniform detent projection 2-4-2, inclined-plane bar 2-4 places in the axially extending bore 2-2-4 of bearing 2-2, and four two extra edge projection 2-4-1 place in the gathering sill 2-2-1, and the crown of eight detent projection 2-3-2 is relative respectively with the inclined-plane of eight No. two detent projection 2-4-2; Described push rod 2-5 lower end is provided with boss 2-5-1 No. one, the lower surface of push rod 2-5 is provided with axial blind hole 2-5-2, push rod 2-5 places in the axially extending bore 2-2-4 of the axial cavity 2-4-3 of inclined-plane bar 2-4 and bearing 2-2, and the upper surface of a boss 2-5-1 engages with the lower surface of inclined-plane bar 2-4; Be provided with axial cavity 2-7-1 and following pilot hole 2-7-2 in the described fairlead 2-7, last axial cavity 2-7-1 is communicated with following pilot hole 2-7-2, and the top of bearing 2-2, push rod 2-3, inclined-plane bar 2-4, push rod 2-5 and axle 2-6 places in the axial cavity 2-7-1; Described axle 2-6 upper end 2-6-1 is a sphere, axle 2-6 upper end is positioned at the axial blind hole 2-5-2 of push rod 2-5, and contact with the upper surface of axial blind hole 2-5-2, the top of axle 2-6 is provided with boss 2-6-2 No. two, the following pilot hole 2-7-2 of fairlead 2-7 is passed in the lower end of axle 2-6, matched in clearance between the bottom of axle 2-6 and the following pilot hole 2-7-2 of fairlead 2-7, lower end and the addendum cone 2-8 of axle 2-6 are affixed; Spring 2-9 is enclosed within a 2-6 middle part, the lower surface engages of the upper end of spring 2-9 and No. two boss 2-6-2, and the lower end of spring 2-9 engages with the bottom surface 2-7-1-1 of the last axial cavity 2-7-1 of fairlead 2-7; The bottom of addendum cone 2-8 is provided with conical surface 2-8-1.
Operating principle: locking mechanism 2 and back locking mechanism 3 produced interlock before the present invention made by universal driving shaft 4, realized the interlock function of forward and backward door.The depression bar 2-1 of preceding in use locking mechanism 2 and back locking mechanism 3 respectively with forward and backward door mechanical attachment, when two Men Jun were in closed condition, mutual interlocking gear was in relaxed state, can arbitrarily can open Qianmen or back door this moment.When open at the Qianmen, the depression bar 2-1 of preceding locking mechanism 2 is depressed, drive push rod 2-3, locking nut 2-10 moves downward, the extra edge projection 2-3-1 of push rod 2-3 slides in the gathering sill 2-2-1 of bearing 2-2 and promotes inclined-plane bar 2-4 and moves downward, the two extra edge projection 2-4-1 of inclined-plane bar 2-4 along the gathering sill 2-2-1 of bearing 2-2 to lower slider, skid off the gathering sill 2-2-1 of bearing 2-2 as two extra edge projection 2-4-1, the skew back face of a detent projection 2-3-2 of push rod 2-3 lower end produces relative slip with No. two detent projection 2-4-2 skew back faces of inclined-plane bar 2-4 upper end, and inclined-plane bar 2-4 rotates with respect to push rod 2-3, the skew back face of No. two detent projection 2-4-2 of inclined-plane bar 2-4 upper end engages with the inclined-plane 2-2-2 of bearing 2-2, the inclined-plane of No. two detent projection 2-4-2 of inclined-plane bar 2-4 upper end produces slip relatively with respect to the inclined-plane 2-2-2 of bearing 2-2, enter in the teeth groove 2-2-5 of bearing 2-2 lower end, preceding locking mechanism 2 pins; In the time of the moving downward of inclined-plane bar 2-4, driving axle 2-6 and addendum cone 2-8 moves downward, compress the front end of universal driving shaft 4 by the conical surface 2-8-1 of addendum cone 2-8, universal driving shaft 4 produces and moves axially, thereby compress the conical surface 2-8-1 of the addendum cone 2-8 of back locking mechanism 3, make back locking mechanism akinesia, be in lockup state, the back door can not be opened, and realizes interlock function; In the whole process, inclined-plane bar 2-4 under the spring force effect all the time with push rod 2-3 under end in contact.When the Qianmen is closed, the depression bar 2-1 of preceding locking mechanism 2 is depressed once more, driving push rod 2-3 and inclined-plane bar 2-4 moves downward, No. two detent projection 2-4-2 of inclined-plane bar 2-4 upper end deviate from the teeth groove 2-2-5 of bearing 2-2 lower end, under the effect of spring force, the inclined-plane of No. two detent projection 2-4-2 of inclined-plane bar 2-4 upper end produces slip relatively with respect to No. two inclined-plane 2-2-3 of bearing 2-2, inclined-plane bar 2-4 rotates, two extra edge projection 2-4-1 enter in the gathering sill 2-2-1 of bearing 2-2, preceding locking mechanism 2 releases, simultaneously, the axle 2-6 of preceding locking mechanism 2 moves upward under the spring force effect, drive the front end that addendum cone 2-8 moves upward with universal driving shaft 4 and separate, back locking mechanism 6 is in relaxed state, the mutual interlocking gear release.
The specific embodiment two: the difference of (referring to Fig. 9) present embodiment and the specific embodiment one is that mechanical interlocking mechanism also has jackscrew 2-11, the lower end of described axle 2-6 is provided with external screw thread 2-6-3, the upper surface of addendum cone 2-8 has connecting thread hole 2-8-2, the side of addendum cone 2-8 has screwed hole 2-8-3, the lower end of axle 2-6 is threaded with the upper end of addendum cone 2-8, and jackscrew 2-11 screws in the screwed hole 2-8-3.Other composition is identical with the specific embodiment one with annexation.Present embodiment one advantage is: addendum cone 2-8 is adjustable with respect to the axial location of axle 2-6, is convenient to Installation and Debugging.
The specific embodiment three: (referring to Fig. 1) present embodiment and the specific embodiment one, two difference is that mechanical interlocking mechanism also has coupling band 7, two jackscrews 8, coupling band 7 is provided with axially extending bore 7-1, the front portion of coupling band 7 sidewalls, the rear portion is respectively equipped with radial screw bore 7-2, two screwed hole 7-2 are communicated with axially extending bore 7-1 respectively, described universal driving shaft 4 is made up of leading portion axle 4-1 and back segment axle 4-2, the front end 4-1-1 of leading portion axle 4-1 is a sphere, the rear end of leading portion axle 4-1 places the front portion of axially extending bore 7-1, the follower head 4-2-1 of back segment axle 4-2 is a sphere, the front end of back segment axle 4-2 places the rear portion of axially extending bore 7-1, and two jackscrews 8 screw in respectively in two radial screw bore 7-2.Other composition is identical with the specific embodiment two with the specific embodiment one with annexation.The advantage of present embodiment is: because front end 4-1-1 and follower head 4-2-1 are spheres, it is steady more, reliable to make that the present invention operates, and the front and back position with respect to preceding locking mechanism 2 and back locking mechanism 3 of universal driving shaft 4 is adjustable, is convenient to Installation and Debugging.
Claims (4)
1, mechanical interlocking mechanism, it is characterized in that mechanical interlocking mechanism comprises lockset support (1), preceding locking mechanism (2), back locking mechanism (3) and universal driving shaft (4), the upper end of preceding locking mechanism (2) and the front end of lockset support (1) are affixed, and the rear end of the upper end of back locking mechanism (3) and lockset support (1) is affixed; Middle front part, middle part and the postmedian of lockset support (1) is installed with fore bearing support (1-1), middle (center) bearing support (1-2) and rear bearing rack (1-3) respectively, the lower end of fore bearing support (1-1), middle (center) bearing support (1-2) and rear bearing rack (1-3) is installed with linear axis bearing (6) respectively, and three linear bearings (5) place respectively in the endoporus (6-1) of three linear axis bearings (6); Described universal driving shaft (4) places in the retainer endoporus (5-1) of three linear bearings (5), and the front-end and back-end of universal driving shaft (4) contact with the lower extreme point of the lower end of preceding locking mechanism (2) and back locking mechanism (3) respectively or unclamp.
2, mechanical interlocking mechanism according to claim 1, it is characterized in that described preceding locking mechanism (2) and back locking mechanism (3) are by depression bar (2-1), bearing (2-2), push rod (2-3), inclined-plane bar (2-4), push rod (2-5), axle (2-6), fairlead (2-7), addendum cone (2-8), spring (2-9), locking nut (2-10) is formed, the lower end of depression bar (2-1) is provided with external screw thread (2-1-1), the upper end of push rod (2-3) is provided with internal thread hole (2-3-1), depression bar (2-1) is threaded with push rod (2-3), and locking nut (2-10) is threaded with depression bar (2-1) and places push rod (2-3) top; Be provided with axially extending bore (2-2-4) in the described bearing (2-2), the lower sidewall of bearing (2-2) has four uniform gathering sills (2-2-1), and the lower end of bearing (2-2) is provided with four uniform inclined-planes (2-2-2) and four uniform No. two inclined-planes (2-2-3); The lateral surface bottom of described push rod (2-3) is installed with four uniform extra edge projections (2-3-1), the lower surface of push rod (2-3) is provided with eight uniform detent projection (2-3-2), push rod (2-3) places in the axially extending bore (2-2-4) of bearing (2-2), and four one extra edge projections (2-3-1) place in the gathering sill (2-2-1); Be provided with axial cavity (2-4-3) in the described inclined-plane bar (2-4), inclined-plane bar (2-4) lateral surface is installed with four two uniform extra edge projections (2-4-1), the upper surface of inclined-plane bar (2-4) is provided with eight uniform No. two detent projection (2-4-2), inclined-plane bar (2-4) places in the axially extending bore (2-2-4) of bearing (2-2), and four two extra edge projections (2-4-1) place in the gathering sill (2-2-1), and the crown of eight detent projection (2-3-2) is relative respectively with the inclined-plane of eight No. two detent projection (2-4-2); Described push rod (2-5) lower end is provided with a boss (2-5-1), the lower surface of push rod (2-5) is provided with axial blind hole (2-5-2), push rod (2-5) places in the axially extending bore (2-2-4) of the axial cavity (2-4-3) of inclined-plane bar (2-4) and bearing (2-2), and the upper surface of a boss (2-5-1) engages with the lower surface of inclined-plane bar (2-4); Be provided with axial cavity (2-7-1) and following pilot hole (2-7-2) in the described fairlead (2-7), last axial cavity (2-7-1) is communicated with following pilot hole (2-7-2), and the top of bearing (2-2), push rod (2-3), inclined-plane bar (2-4), push rod (2-5) and axle (2-6) places in the axial cavity (2-7-1); Described axle (2-6) upper end (2-6-1) is a sphere, axle (2-6) upper end is positioned at the axial blind hole (2-5-2) of push rod (2-5), and contact with the upper surface of axial blind hole (2-5-2), the top of axle (2-6) is provided with No. two boss (2-6-2), the following pilot hole (2-7-2) of fairlead (2-7) is passed in the lower end of axle (2-6), matched in clearance between the bottom of axle (2-6) and the following pilot hole (2-7-2) of fairlead (2-7), the lower end and the addendum cone (2-8) of axle (2-6) are affixed; Spring (2-9) is enclosed within axle (2-6) middle part, the lower surface engages of the upper end of spring (2-9) and No. two boss (2-6-2), and the lower end of spring (2-9) engages with the bottom surface (2-7-1-1) of the last axial cavity (2-7-1) of fairlead (2-7); The bottom of addendum cone (2-8) is provided with the conical surface (2-8-1).
3, mechanical interlocking mechanism according to claim 2, it is characterized in that mechanical interlocking mechanism also has jackscrew (2-11), the lower end of described axle (2-6) is provided with external screw thread (2-6-3), the upper surface of described addendum cone (2-8) has connecting thread hole (2-8-2), the side of addendum cone (2-8) has screwed hole (2-8-3), the lower end of axle (2-6) is threaded with the upper end of addendum cone (2-8), and jackscrew (2-11) screws in the screwed hole (2-8-3).
4, mechanical interlocking mechanism according to claim 1, it is characterized in that mechanical interlocking mechanism also has coupling band (7), two jackscrews (8), coupling band (7) is provided with axially extending bore (7-1), the front portion of coupling band (7) sidewall, the rear portion is respectively equipped with radial screw bore (7-2), two screwed holes (7-2) are communicated with axially extending bore (7-1) respectively, described universal driving shaft (4) is made up of leading portion axle (4-1) and back segment axle (4-2), the front end (4-1-1) of leading portion axle (4-1) is a sphere, the rear end of leading portion axle (4-1) places the front portion of axially extending bore (7-1), the follower head (4-2-1) of back segment axle (4-2) is a sphere, the front end of back segment axle (4-2) places the rear portion of axially extending bore (7-1), and two jackscrews (8) screw in respectively in two radial screw bore (7-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100098509A CN100338325C (en) | 2005-03-24 | 2005-03-24 | Mechanical interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100098509A CN100338325C (en) | 2005-03-24 | 2005-03-24 | Mechanical interlocking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664292A CN1664292A (en) | 2005-09-07 |
| CN100338325C true CN100338325C (en) | 2007-09-19 |
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ID=35035573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100098509A Expired - Fee Related CN100338325C (en) | 2005-03-24 | 2005-03-24 | Mechanical interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100338325C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2044327A (en) * | 1979-03-16 | 1980-10-15 | Group Four Total Security Ltd | Improvements Relating to Interlocking Doors |
| DE3926132A1 (en) * | 1989-08-08 | 1991-02-14 | Sitec Gmbh Sicherheitseinricht | Safe storage compartment with doors outside and inside secure room - has electrical interlock preventing simultaneous opening of doors and automatic locking without key operation |
| FR2664931A1 (en) * | 1990-07-18 | 1992-01-24 | Pijollet Sophie | Device for locking two rigid doors by means of a slide fastener |
| CN2403875Y (en) * | 1999-11-26 | 2000-11-01 | 崔玉良 | Interlocking linkage door |
| CN2540482Y (en) * | 2002-05-14 | 2003-03-19 | 上海德惠空调设备厂 | Mechanical interlocking device for closing transmission case door |
-
2005
- 2005-03-24 CN CNB2005100098509A patent/CN100338325C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2044327A (en) * | 1979-03-16 | 1980-10-15 | Group Four Total Security Ltd | Improvements Relating to Interlocking Doors |
| DE3926132A1 (en) * | 1989-08-08 | 1991-02-14 | Sitec Gmbh Sicherheitseinricht | Safe storage compartment with doors outside and inside secure room - has electrical interlock preventing simultaneous opening of doors and automatic locking without key operation |
| FR2664931A1 (en) * | 1990-07-18 | 1992-01-24 | Pijollet Sophie | Device for locking two rigid doors by means of a slide fastener |
| CN2403875Y (en) * | 1999-11-26 | 2000-11-01 | 崔玉良 | Interlocking linkage door |
| CN2540482Y (en) * | 2002-05-14 | 2003-03-19 | 上海德惠空调设备厂 | Mechanical interlocking device for closing transmission case door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1664292A (en) | 2005-09-07 |
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Effective date of registration: 20180627 Address after: 150000 Dalian Road North and Xingkai Road, Harbin, Heilongjiang province. Patentee after: Hagongda robot group (Harbin) Asset Management Co., Ltd. Address before: 510000 room 340, C 340, Shi Huan Road, Tianhe District, Guangzhou, Guangdong. Patentee before: Harbin robotics group (Guangzhou) intellectual property Klc Holdings Ltd |
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