CN210977163U

CN210977163U - Anti-theft door with anti-theft peephole

Info

Publication number: CN210977163U
Application number: CN201920912747.2U
Authority: CN
Inventors: 戴丽芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-07-10
Anticipated expiration: 2029-06-18

Abstract

The utility model belongs to the technical field of anti-theft doors, in particular to an anti-theft door with an anti-theft peep hole, which comprises a door body and a peep hole, wherein when an inner sleeve and an outer sleeve are installed, the end with external thread on the inner sleeve can be directly inserted into the end with internal thread on the outer sleeve, then the inner sleeve is in threaded fit with the outer sleeve by rotating the inner sleeve, the peep hole on the anti-theft door is convenient to install compared with the peep hole on the traditional anti-theft door, and the inner sleeve and the outer sleeve are blocked in the relative rotating direction by three clamping plates which are evenly distributed in the circumferential direction after the installation is finished, people can not rotate the outer sleeve outside at all, meanwhile, the utility model designs three limiting plates between the inner sleeve and the outer sleeve, when people forcibly dismantle the peep hole from the door by other tools such as an electric drill, an imaging mechanism can push the three limiting plates to bend the limiting plates, and the anti-theft door is prevented from being opened by people through a channel between the inner sleeve and the outer sleeve after the imaging mechanism is damaged.

Description

Anti-theft door with anti-theft peephole

Technical Field

The utility model belongs to the technical field of the burglary-resisting door, especially, relate to a burglary-resisting door of area theftproof cat eye.

Background

The household anti-theft door mainly comprises a door lock, a handle, a cat eye, a frame body, a metal structure and the like, and is a necessary protective device in a family; at present, the urban houses are generally provided with the anti-theft doors, and the common anti-theft doors are often provided with sight glasses for external observation, namely commonly called cat eyes.

The cat eye is a peephole arranged on the anti-theft door, and indoor personnel can conveniently observe the condition outside the door through the cat eye. However, the conventional cat eye becomes a hole of the security door. After the peep hole is removed by a burglary-resisting person, the iron rod with the hook extends into the inner side of the anti-theft door from the peep hole, and the handle on the inner side of the anti-theft door is hooked and rotated by the hook to open the anti-theft door; the general cat eye is composed of a common sleeve without a back-screwing device, and the cat eye or the optical lens is easy to detach from the door; even have the back-screwing device simultaneously, when people had the passageway that has optical lens in the middle of the cat eye from other instruments such as electric drill outside the door by force and bore thoroughly, also can stretch into with the instrument and carry out the theft, ordinary cat eye need rotate the endotheca overcoat many circles in addition in the installation in order to accomplish the installation, and the installation is unchangeable slightly. The utility model relates to a take burglary-resisting door of theftproof cat eye and easy installation of cat eye solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned defect among the prior art, the utility model discloses a take burglary-resisting door of theftproof cat eye, it adopts following technical scheme to realize.

The utility model provides a take burglary-resisting door of theftproof cat eye which characterized in that: the door comprises a door body and a cat eye, wherein the cat eye is arranged on the door body; the door body is designed in the prior art and mainly comprises a door lock, a handle, a frame body, a metal structure and the like.

The cat eye comprises an outer sleeve, an inner sleeve, a clamping ring, an upper tightening ring, an imaging mechanism and a limiting plate, wherein the door body is provided with the cat eye hole; the inner circle surface of the other end of the outer sleeve is provided with internal threads, and the outer sleeve is nested and installed in the cat eye hole close to the outdoor end of the door body; the imaging mechanism is arranged on the inner side of the outer sleeve in a sliding fit manner, and one end of the imaging mechanism penetrates out of the outer sleeve and is positioned outdoors; the imaging mechanism can slide relative to the outer sleeve; one end of the inner sleeve is provided with a fixed disc which is used for limiting the outward movement of the inner sleeve so that the inner sleeve is fixed on the door body; in the utility model, because the connecting part of the inner sleeve and the outer sleeve is in threaded fit, the inner sleeve and the outer sleeve can be mutually pulled in the mutual fit process, so that the outer sleeve is subjected to inward pulling force of the inner sleeve, the inner sleeve is subjected to outward pulling force of the outer sleeve, the outer sleeve is limited through the chuck, and the inner sleeve is limited through the fixed disk; after the inner sleeve and the outer sleeve are installed, the inner sleeve and the outer sleeve are connected together, and the inner sleeve and the outer sleeve are clamped on the door body through the chuck and the fixed disc; the outer circle surface of the other end of the inner sleeve is provided with external threads, the inner sleeve is nested and installed in the cat eye hole close to the outdoor end of the door body, and the end with the external threads on the inner sleeve is nested and installed at the end with the internal threads on the outer sleeve through thread matching.

The inner side of the inner sleeve is provided with a limiting end face, the inner side of the inner sleeve is provided with a mounting ring in a nested manner, and the mounting ring is in contact fit with the limiting end face; the limiting end face plays a limiting role on the mounting ring, when the imaging mechanism is pushed to move inwards, the imaging mechanism can push three limiting plates arranged on the mounting ring, the three limiting plates push the mounting ring, but the mounting ring is limited by the limiting end face, and the limiting plates have elasticity, so that the imaging mechanism can push the limiting plates to enable the limiting plates to be bent and deformed, and the limiting plates can block a channel between the inner sleeve and the outer sleeve; three elastic limiting plates are uniformly arranged on the mounting ring in the circumferential direction, and one ends, far away from the mounting ring, of the three limiting plates are in contact fit with one ends, located on the inner side of the outer sleeve, of the imaging mechanisms.

The end of the inner sleeve, which is provided with the fixed disk, is provided with a threaded sleeve, three threaded notches are uniformly formed in the circumferential direction on the outer circular surface of the end, which is provided with the external thread, of the inner sleeve, and the threaded notches penetrate out of the fixed disk; three clamping grooves are uniformly formed in the circumferential direction of one end, provided with an internal thread, of the outer sleeve, and the three clamping grooves are matched with the three thread notches in a one-to-one correspondence manner; the utility model discloses in the outer external screw thread on the disc of endotheca is divided into the triplex with the three screw thread breach that opens on endotheca on the endotheca, at first in the in-process of installation endotheca, make the overcoat fix in the direction of rotation through appurtenance at first, then insert the one end that has the external screw thread on the endotheca into the one end that has the internal thread on the overcoat, in the insertion process, have the part of external screw thread on the endotheca and the nested cooperation of three draw-in grooves that open on the overcoat one-to-one, after inserting, rotatory endotheca makes the part that has the screw thread on the endotheca pass through the screw-thread fit connection with the internal thread part on the overcoat, in the utility model, directly insert the one end that has the external screw thread on the endotheca into the one end that has the internal thread on the overcoat earlier, the external screw, the inner sleeve is rotated to enable the external thread on the inner sleeve to be matched with the internal thread on the outer sleeve, so that the time spent on the thread matching connection of the inner sleeve and the outer sleeve in the installation process is reduced, and the inner sleeve and the outer sleeve are more convenient to install; the end face of one end of the clamping ring is uniformly provided with three clamping plates in the circumferential direction, the clamping ring is nested on the threaded sleeve, the three clamping plates arranged on the clamping ring are matched with the three clamping grooves in a one-to-one correspondence mode, and the three clamping plates are matched with the three threaded notches in a one-to-one correspondence mode; it is fixed with endotheca and overcoat through three cardboard for endotheca and overcoat can not take place relative rotation, and the endotheca passes through the fixed disk to be fixed on the door body, the overcoat passes through the chuck to be fixed on the door body, after endotheca and overcoat are fixed, fixed disk and chuck will provide certain frictional force for endotheca and overcoat through the door body after the direction of rotation, prevent endotheca and overcoat relative rotation and open, and opening of endotheca and overcoat needs to be fixed the overcoat, it just can open to rotate the endotheca, need just can indoor and outdoor simultaneous operation promptly, it is impossible to open endotheca and overcoat in outdoor operation alone.

The inner circular surface of the upper tightening ring is provided with internal threads, and the tightening ring is arranged on the threaded sleeve through the matching of the internal threads and the threads of the threaded sleeve and is positioned outside the clamping ring; the tightening ring plays a tightening role on the snap ring.

The chuck on the outer sleeve is in contact fit with the outer door surface of the door body, and the fixed disk on the inner sleeve is in contact fit with the inner door surface of the door body.

The baffle plate is arranged at one end of the inner sleeve positioned indoors and used for preventing people from peeping indoors from outdoors, and the baffle plate is arranged by adopting the prior art and can be in a swinging type or a rotating type.

As a further improvement of the technology, one end of the upper tightening ring is provided with a fixed lug; the baffle is installed on fixed journal stirrup through the swing cooperation, and baffle and endotheca are located indoor one end cooperation.

As a further improvement of the technology, the outer circular surface of the thread sleeve is provided with two driving surfaces which are uniformly distributed in the circumferential direction; the driving surface is used for facilitating people to drive the inner sleeve to rotate through the wrench.

As a further improvement of the technology, three limiting grooves are circumferentially and uniformly formed in the end face, back to the outer sleeve, of the chuck on the outer sleeve, three clamping blocks are circumferentially and uniformly installed at one end of the clamping sleeve, and the clamping sleeve is installed on the outer sleeve through the matching of the three clamping blocks and the three limiting grooves; people can clamp auxiliary tools such as a screwdriver, a square wrench and the like in the limiting groove to rotationally fix the outer sleeve; the effect of cutting ferrule is to block three spacing groove for the cat eye looks more pleasing to the eye.

As a further improvement of the technology, a fixing ring is nested and installed on the outer circular surface of the imaging mechanism, three sliding blocks are evenly installed on the outer circular surface of the fixing ring in the circumferential direction, and the imaging mechanism is installed on the inner side of the outer sleeve through the matching of the three sliding blocks and three clamping grooves formed in the outer sleeve; the three sliding blocks play a role in guiding the imaging mechanism, and the fixed ring is used for facilitating the installation of the sliding blocks.

As a further improvement of the present technology, the fixing ring is made of elastic rubber, the elastic rubber has elasticity, the fixing ring is nested outside the imaging mechanism, and the friction between the fixing ring and the imaging mechanism is increased by the elastic function of the fixing ring, so that the connection between the fixing ring and the imaging mechanism becomes more stable.

As the further improvement of this technique, the cooperation between above-mentioned three fixture block and the three spacing groove is friction fit, and has friction rubber on the fixture block and the contact surface of spacing groove, prevents that the cutting ferrule from dropping.

The utility model provides a cat eye has a plurality of size models, and to the standard door thickness of difference, each structure has not unidimensional.

As the further improvement of this technique, the width of above-mentioned cardboard is half of the draw-in groove width of opening on the overcoat, at the fixed in-process of endotheca and overcoat, the overcoat can be rotatory relatively, there is the deviation because of the thickness of every the same thickness standard's door body at rotatory in-process, endotheca and overcoat are slightly different at taut back rotation fit's angle, and three draw-in groove is also different with the crisscross angle of three screw thread breach promptly, so the utility model designs a half of the draw-in groove width of opening on the overcoat is the width of cardboard, as long as three draw-in groove can satisfy the cardboard with the crisscross angle of three screw thread breach and pass and can be so that the cardboard plays limiting displacement to endotheca and overcoat.

As a further improvement of the present technology, the number of the limiting plates is 3, and the alternative is 4 or 5; the limiting plate is additionally arranged to play a limiting role in a channel between the inner sleeve and the outer sleeve after the inner sleeve and the outer sleeve are bent.

As a further improvement of the technology, one end of the upper tightening ring, which is contacted with the snap ring, is provided with elastic rubber; go up the tightring long-time with the snap ring cooperation back, because of the door body make a round trip to bump between switch and the door frame, appear vibrations and lead to appearing becoming flexible between tightring and the snap ring, go up the tightring and lose the tightening effect to the snap ring, can prevent through elastic rubber that this kind of phenomenon from taking place, elasticity through elastic rubber can adapt to the vibrations of door body for go up tightring and snap ring and keep pressing from both sides tight state always.

Compared with the traditional anti-theft door technology, the anti-theft door designed by the utility model, because the inner sleeve is provided with the thread notch, the outer sleeve is provided with the clamping groove, when the inner sleeve and the outer sleeve are installed, one end of the inner sleeve with the external thread can be directly inserted into one end of the outer sleeve with the internal thread, during the insertion process, the external thread part of the inner sleeve is matched with the outer sleeve without the internal thread area, the anti-theft door can be directly inserted in place, the fixed disk and the chuck of the inner sleeve and the outer sleeve are pasted on the door surface, then the inner sleeve is matched with the outer sleeve by rotating the inner sleeve, the cat eye on the anti-theft door is convenient to install compared with the cat eye on the traditional anti-theft door, and the inner sleeve and the outer sleeve are blocked in the relative rotating direction by the three clamping boards which are evenly distributed in the circumferential direction after the installation is finished, people can not rotate the outer sleeve outside, when people dismantle the cat eye from other instruments such as electric drill by force outdoors, can drill at first and move imaging mechanism, give imaging mechanism an inward thrust, imaging mechanism can promote three limiting plate and make the limiting plate crooked, dies the passageway between endotheca and the overcoat, prevents to utilize the hook to catch on and rotate the inboard handle of burglary-resisting door through the passageway between endotheca and the overcoat after imaging mechanism destroys, opens the burglary-resisting door. The utility model discloses the structure of restriction reverse rotation is platelike structure and does not have spring or tiny tooth after the installation is accomplished, and its reliability is higher than traditional anti-contrarotation.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic view of the internal structural distribution of the whole component.

Fig. 4 is a schematic view of the internal structure installation of the integral component.

Fig. 5 is a schematic view of a ferrule structure.

Fig. 6 is a schematic view of the jacket structure.

Fig. 7 is a schematic view of card slot distribution.

Fig. 8 is a schematic view of the mounting of the retainer ring.

Fig. 9 is a schematic view of a slider installation.

Fig. 10 is a schematic diagram of the inner sleeve structure.

FIG. 11 is a schematic view of a notch distribution.

Figure 12 is a card mounting schematic.

Fig. 13 is a schematic view of the installation of the stopper plate.

FIG. 14 is a schematic view of the baffle installation.

FIG. 15 is a schematic view of a baffle distribution.

Fig. 16 is a schematic illustration of cat-eye installation.

Number designation in the figures: 1. a jacket; 2. an inner sleeve; 3. a snap ring; 4. tightening the ring; 5. a baffle plate; 6. a card sleeve; 7. an imaging mechanism; 8. a mounting ring; 9. a fixing ring; 10. a clamping block; 11. a limiting groove; 12. a chuck; 13. a card slot; 14. a slider; 15. fixing the disc; 16. a thread gap; 17. a threaded sleeve; 18. clamping a plate; 19. a limiting plate; 20. fixing the support lug; 21. a drive face; 22. a cat eye; 23. a limiting end face; 24. a door body.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples or figures are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 16, it comprises a door body 24, a cat eye 22, wherein as shown in fig. 16, the cat eye 22 is mounted on the door body 24; the door body 24 is designed in the prior art and mainly comprises a door lock, a handle, a frame body, a metal structure and the like.

As shown in fig. 1 and 2, the cat eye 22 includes an outer sleeve 1, an inner sleeve 2, a snap ring 3, an upper fastening ring 4, an imaging mechanism 7, and a limiting plate 19, wherein a door body 24 has a cat eye 22 hole, as shown in fig. 6 and 7, one end of the outer sleeve 1 has a chuck 12, and the chuck 12 is used for limiting inward movement of the outer sleeve 1, so that the outer sleeve 1 is fixed on the door body 24; the inner circle surface of the other end of the outer sleeve 1 is provided with internal threads, and the outer sleeve 1 is nested and arranged in a cat eye 22 hole close to one end of the door body 24 outdoors; as shown in fig. 3 and 4, the imaging mechanism 7 is installed inside the outer sleeve 1 by sliding fit, and one end of the imaging mechanism 7 penetrates out of the outer sleeve 1 and is located outdoors; the imaging mechanism 7 can slide relative to the outer sleeve 1; as shown in fig. 10 and 11, one end of the inner sleeve 2 is provided with a fixed disk 15, and the fixed disk 15 is used for limiting the outward movement of the inner sleeve 2, so that the inner sleeve 2 is fixed on the door body 24; in the utility model, because the connecting part of the inner sleeve 2 and the outer sleeve 1 is in threaded fit, the inner sleeve 2 and the outer sleeve 1 can be mutually pulled in the mutual matching process, so that the outer sleeve 1 is subjected to the inward pulling force of the inner sleeve 2, the inner sleeve 2 is subjected to the outward pulling force of the outer sleeve 1, the outer sleeve 1 is limited through the chuck 12, and the inner sleeve 2 is limited through the fixed disk 15; after the inner sleeve 2 and the outer sleeve 1 are installed, the inner sleeve 2 and the outer sleeve 1 are connected together, and the inner sleeve 2 and the outer sleeve 1 are clamped on the door body 24 through the chuck 12 and the fixed disc 15; the outer circle surface of the other end of the inner sleeve 2 is provided with an external thread, the inner sleeve 2 is nested and installed in the cat eye 22 hole close to the outdoor end on the door body 24, and the end with the external thread on the inner sleeve 2 is nested and installed at the end with the internal thread on the outer sleeve 1 through thread matching.

As shown in fig. 11, the inner side of the inner sleeve 2 has a limit end surface 23, as shown in fig. 3 and 4, the inner side of the inner sleeve 2 is nested with the mounting ring 8, and the mounting ring 8 is in contact fit with the limit end surface 23; the limiting end face 23 has a limiting effect on the mounting ring 8, when the imaging mechanism 7 is pushed to move inwards, the imaging mechanism 7 can push three limiting plates 19 arranged on the mounting ring 8, the three limiting plates 19 push the mounting ring 8, but because the mounting ring 8 is limited by the limiting end face 23 and the limiting plates 19 have elasticity, the imaging mechanism 7 can push the limiting plates 19 to enable the limiting plates 19 to be bent and deformed, and the limiting plates 19 can block a channel between the inner sleeve 2 and the outer sleeve 1; as shown in fig. 13, three elastic limit plates 19 are uniformly mounted on the mounting ring 8 in the circumferential direction, and one end of each of the three limit plates 19 away from the mounting ring 8 is in contact fit with one end of the imaging mechanism 7 located inside the outer sleeve 1.

As shown in fig. 10 and 11, the end of the inner sleeve 2, which is provided with the fixed disk 15, is provided with a threaded sleeve 17, three threaded notches 16 are uniformly formed in the circumferential direction on the outer circumferential surface of the end of the inner sleeve 2, which is provided with the external thread, and the threaded notches 16 penetrate out of the fixed disk 15; three clamping grooves 13 are uniformly formed in the circumferential direction at one end, provided with an internal thread, of the outer sleeve 1, and the three clamping grooves 13 are correspondingly matched with the three thread notches 16 one by one; in the utility model, the three thread gaps 16 opened on the inner sleeve 2 divide the external thread on the external circular surface of the inner sleeve 2 into three parts, in the process of installing the inner sleeve 2, firstly the outer sleeve 1 is fixed in the rotating direction by an auxiliary tool, then the end with the external thread on the inner sleeve 2 is inserted into the end with the internal thread on the outer sleeve 1, in the inserting process, the part with the external thread on the inner sleeve 2 is in one-to-one corresponding nested fit with the three clamping grooves 13 opened on the outer sleeve 1, after the inserting, the inner sleeve 2 is rotated to ensure that the part with the external thread on the inner sleeve 2 is connected with the internal thread part on the outer sleeve 1 through the thread fit, in the utility model, the end with the external thread on the inner sleeve 2 is firstly directly inserted into the end with the internal thread on the outer sleeve 1, in the inserting process, the external thread on the inner sleeve 2 is not matched with the internal thread on the outer sleeve 1, after the, the inner sleeve 2 is rotated to enable the external thread on the inner sleeve 2 to be matched with the internal thread on the outer sleeve 1, so that the time spent on the thread matching connection of the inner sleeve 2 and the outer sleeve 1 in the installation process is reduced, and the inner sleeve 2 and the outer sleeve 1 are more convenient to install; as shown in fig. 12, three clamping plates 18 are uniformly arranged on the end surface of one end of the clamping ring 3 in the circumferential direction, as shown in fig. 3 and 4, the clamping ring 3 is nested and arranged on the threaded sleeve 17, the three clamping plates 18 arranged on the clamping ring 3 are correspondingly matched with the three clamping grooves 13 one by one, and the three clamping plates 18 are correspondingly matched with the three threaded notches 16 one by one; the inner sleeve 2 and the outer sleeve 1 are fixed through the three clamping plates 18, so that the inner sleeve 2 and the outer sleeve 1 cannot rotate relatively, the inner sleeve 2 is fixed on the door body 24 through the fixing disc 15, the outer sleeve 1 is fixed on the door body 24 through the clamping disc 12, after the inner sleeve 2 and the outer sleeve 1 are fixed, the fixing disc 15 and the clamping disc 12 can provide certain friction force for the inner sleeve 2 and the outer sleeve 1 through the door body 24 in the rotating direction, the inner sleeve 2 and the outer sleeve 1 are prevented from being opened in a relatively rotating mode, the outer sleeve 1 needs to be fixed when the inner sleeve 2 and the outer sleeve 1 are opened, the inner sleeve 2 can be opened only by rotating, namely, the inner sleeve 2 and the outer sleeve 1 can not be opened only when the outer sleeve 2 and the inner sleeve.

As shown in fig. 3 and 4, the inner circumferential surface of the tightening ring 4 has an internal thread, and the tightening ring 4 is mounted on the threaded sleeve 17 through the internal thread and the thread of the threaded sleeve 17, and is located outside the snap ring 3; the tightening ring 4 plays a tightening role for the snap ring 3.

The chuck 12 on the outer sleeve 1 is in contact fit with the outer door surface of the door body 24, and the fixed disk 15 on the inner sleeve 2 is in contact fit with the inner door surface of the door body 24.

As shown in fig. 14 and 15, a baffle 5 for preventing people from peeping into the room from the outside is installed at one end of the inner sleeve 2 located in the room, and the baffle 5 is installed by adopting the prior art and can be in a swing type or a rotary type.

As shown in fig. 15, a fixing lug 20 is mounted at one end of the upper fastening ring 4; the baffle 5 is installed on the fixed support lug 20 through swing fit, and the baffle 5 is matched with one end of the inner sleeve 2 positioned indoors.

As shown in fig. 10, the outer circumferential surface of the thread bushing 17 is provided with two driving surfaces 21 which are uniformly distributed in the circumferential direction; the driving surface 21 is used for facilitating people to drive the inner sleeve 2 to rotate through a wrench.

As shown in fig. 6, three limiting grooves 11 are circumferentially and uniformly formed on the end surface of the chuck 12 on the outer sleeve 1, which faces away from the outer sleeve 1, as shown in fig. 5, three clamping blocks 10 are circumferentially and uniformly installed at one end of the clamping sleeve 6, as shown in fig. 4, the clamping sleeve 6 is installed on the outer sleeve 1 through the cooperation of the three clamping blocks 10 and the three limiting grooves 11; people can clamp auxiliary tools such as a screwdriver, a square wrench and the like in the limiting groove 11 to rotationally fix the outer sleeve 1; the function of the ferrule 6 is to block the three retaining grooves 11 so that the cat eye 22 looks more beautiful.

As shown in fig. 8 and 9, a fixing ring 9 is nested and mounted on the outer circumferential surface of the imaging mechanism 7, three sliders 14 are uniformly mounted on the outer circumferential surface of the fixing ring 9 in the circumferential direction, and as shown in fig. 3 and 4, the imaging mechanism 7 is mounted inside the outer sleeve 1 through the cooperation of the three sliders 14 and three slots 13 formed in the outer sleeve 1; the three sliders 14 guide the imaging mechanism 7, and the fixing ring 9 serves to facilitate mounting of the sliders 14.

The fixing ring 9 is made of elastic rubber, the elastic rubber has elasticity, the fixing ring 9 is embedded on the outer side of the imaging mechanism 7, friction between the fixing ring 9 and the imaging mechanism 7 is increased through the elastic function of the fixing ring 9, and therefore connection between the fixing ring 9 and the imaging mechanism 7 is more stable.

The three clamping blocks 10 and the three limiting grooves 11 are in friction fit, and friction rubber is arranged on the contact surfaces of the clamping blocks 10 and the limiting grooves 11, so that the clamping sleeve 6 is prevented from falling off.

The width of above-mentioned cardboard 18 is half of the draw-in groove 13 width of opening on overcoat 1, at the fixed in-process of endotheca 2 and overcoat 1, endotheca 2 can be rotatory at overcoat 1 relatively, there is the deviation because of the thickness of every the same thickness standard's door body 24 at rotatory in-process, endotheca 2 and overcoat 1 are slightly different at taut back normal running fit angle, and three draw-in groove 13 is also different with the crisscross angle of three screw thread breach 16 promptly, so the utility model designs a half of the draw-in groove 13 width of opening on the width of cardboard 18 is overcoat 1, as long as three draw-in groove 13 can satisfy cardboard 18 with the crisscross angle of three screw thread breach 16 and pass and can make cardboard 18 play limiting displacement to overcoat 2 and overcoat 1.

The number of the limiting plates 19 is 4 or 5 as an alternative to 3; the limiting plate 19 is added to limit the passage between the inner sleeve 2 and the outer sleeve 1 after bending.

The upper tightening ring 4 is provided with elastic rubber at one end contacted with the snap ring 3; go up tightring 4 after long-time and 3 cooperations of snap ring, because of the collision takes place between 24 round trips switches of door body and the door frame, appear vibrations and lead to appearing becoming flexible between 4 tightring and the snap ring 3, go up tightring 4 and lose the tightening action to snap ring 3, can prevent this kind of phenomenon from taking place through elastic rubber, elasticity through elastic rubber can adapt to 24 vibrations of door body for go up tightring 4 and snap ring 3 and keep the tight state of clamp always.

In summary, the following steps: the utility model discloses a beneficial effect: the anti-theft door, because the inner sleeve 2 of the design is opened with the thread gap 16, the outer sleeve 1 is opened with the slot 13, when installing the inner sleeve 2 and the outer sleeve 1, the end with the external thread on the inner sleeve 2 can be directly inserted into the end with the internal thread on the outer sleeve 1, in the inserting process, the external thread part of the inner sleeve is matched with the outer sleeve without the internal thread area, the anti-theft door can be directly inserted in place, the fixed disk and the chuck of the inner sleeve and the outer sleeve are pasted on the door surface to be the standard, then the inner sleeve 2 is matched with the outer sleeve 1 by rotating the inner sleeve 2, the cat eye 22 on the anti-theft door is convenient to install compared with the cat eye 22 on the traditional anti-theft door, and the inner sleeve 2 and the outer sleeve 1 are blocked in the relative rotating direction by three clamping boards 18 which are evenly distributed in the circumferential direction after the installation is completed, people can not rotate the outer sleeve 1 outside at all, when people dismantle cat eye 22 from outdoors by force through other instruments such as electric drills, can drill imaging mechanism 7 at first, give imaging mechanism 7 an inward thrust, imaging mechanism 7 can promote three limiting plate 19 and make limiting plate 19 crooked, blocks up the passageway between endotheca 2 and overcoat 1, prevents to destroy the back at imaging mechanism 7, and people utilize the hook to catch and rotate the inboard handle of burglary-resisting door through the passageway between endotheca 2 and the overcoat 1, opens the burglary-resisting door. The utility model discloses the structure of restriction reverse rotation is platelike structure and does not have spring or tiny tooth after the installation is accomplished, and its reliability is higher than traditional anti-contrarotation.

The specific working process is as follows: when the anti-theft door designed by the utility model is used, after the door body 24 is installed, firstly, the purchased cat eye 22 is disassembled, when the cat eye 22 is disassembled, firstly, the tightening ring 4 is rotated to loosen and take down, the snap ring 3 and the three clamping plates 18 arranged on the snap ring 3 are pulled out from the inner sleeve 2 and the outer sleeve 1, then the outer sleeve 1 is fixed by one hand, the inner sleeve 2 is rotated by the other hand, the matched thread part of the inner sleeve 2 and the outer sleeve 1 is separated, after the matched thread part of the inner sleeve 2 and the outer sleeve 1 is separated, the inner sleeve 2 is pulled out from the outer sleeve 1, the mounting ring 8 and the three limiting plates 19 arranged on the mounting ring 8 are taken out, the imaging mechanism 7 is taken out, the cutting sleeve 6 is taken out, after the disassembly is completed, the integrity of the part is checked, especially, whether the imaging mechanism collides or not is started to be installed, the outer sleeve 1 is extended into the cat eye 22, the imaging mechanism 7 is placed in the outer sleeve 1, then is clamped in a limit groove 11 formed on the outer sleeve 1 through an auxiliary tool such as a screwdriver, a square wrench and the like to rotationally fix the outer sleeve 1, and then, the mounting ring 8 and three limit plates 19 arranged on the mounting ring 8 are plugged into the inner sleeve 2, then one end with external threads on the inner sleeve 2 is directly inserted into one end with internal threads on the outer sleeve 1, then the inner sleeve 2 is rotated to enable the external threads on the inner sleeve 2 to be matched with the internal threads on the outer sleeve 1, after the inner sleeve 2 is installed, the snap ring 3 and three snap plates 18 installed on the snap ring 3 are inserted into three groups of spaces formed by staggering three thread gaps 16 and three snap grooves 13 formed in the inner sleeve 2 and the outer sleeve 1 to clamp the inner sleeve 2 and the outer sleeve 1 in a relative rotation mode, and then the tightening ring 4 is installed on a thread sleeve 17 installed on the inner sleeve 2 to tighten the snap ring 3, the inner sleeve 2 and the outer sleeve 1; finally, the cutting sleeve 6 is arranged on the outer sleeve 1 outside the door; the cat eye 22 is installed.

Claims

1. The utility model provides a take burglary-resisting door of theftproof cat eye which characterized in that: the door comprises a door body and a cat eye, wherein the cat eye is arranged on the door body;

the cat eye comprises an outer sleeve, an inner sleeve, a clamping ring, an upper tightening ring, an imaging mechanism and a limiting plate, wherein a cat eye hole is formed in the door body, a chuck is arranged at one end of the outer sleeve, internal threads are formed in the inner circular surface at the other end of the outer sleeve, and the outer sleeve is embedded in the cat eye hole close to the outdoor end of the door body; the imaging mechanism is arranged on the inner side of the outer sleeve in a sliding fit manner, and one end of the imaging mechanism penetrates out of the outer sleeve and is positioned outdoors; one end of the inner sleeve is provided with a fixed disc, the outer circular surface of the other end of the inner sleeve is provided with external threads, the inner sleeve is nested and installed in a cat eye hole close to one end of the door body outside the room, and one end of the inner sleeve with the external threads is nested and installed at one end of the outer sleeve with the internal threads through thread matching;

the inner side of the inner sleeve is provided with a limiting end face, the inner side of the inner sleeve is provided with a mounting ring in a nested manner, and the mounting ring is in contact fit with the limiting end face; three elastic limiting plates are uniformly arranged on the mounting ring in the circumferential direction, and one ends of the three limiting plates, which are far away from the mounting ring, are in contact fit with one ends of the imaging mechanisms, which are positioned on the inner side of the outer sleeve;

the end of the inner sleeve, which is provided with the fixed disk, is provided with a threaded sleeve, three threaded notches are uniformly formed in the circumferential direction on the outer circular surface of the end, which is provided with the external thread, of the inner sleeve, and the threaded notches penetrate out of the fixed disk; three clamping grooves are uniformly formed in the circumferential direction of one end, provided with an internal thread, of the outer sleeve, and the three clamping grooves are matched with the three thread notches in a one-to-one correspondence manner; the end face of one end of the clamping ring is uniformly provided with three clamping plates in the circumferential direction, the clamping ring is nested on the threaded sleeve, the three clamping plates arranged on the clamping ring are matched with the three clamping grooves in a one-to-one correspondence mode, and the three clamping plates are matched with the three threaded notches in a one-to-one correspondence mode;

the inner circular surface of the upper tightening ring is provided with internal threads, and the tightening ring is arranged on the threaded sleeve through the matching of the internal threads and the threads of the threaded sleeve and is positioned outside the clamping ring;

the chuck on the outer sleeve is in contact fit with the outer door surface of the door body, and the fixed disk on the inner sleeve is in contact fit with the inner door surface of the door body;

the end of the inner sleeve positioned in the room is provided with a baffle plate for preventing people from visiting the room from the outside.

2. The security door of claim 1, wherein: one end of the upper tightening ring is provided with a fixed lug; the baffle is installed on fixed journal stirrup through the swing cooperation, and baffle and the interior indoor one end cooperation that is located of endotheca.

3. The security door of claim 1, wherein: the outer circular surface of the thread sleeve is provided with two driving surfaces which are uniformly distributed in the circumferential direction.

4. The security door of claim 1, wherein: three spacing grooves are uniformly formed in the end face, back to the outer sleeve, of the chuck on the outer sleeve in the circumferential direction, three clamping blocks are uniformly installed at one end of the clamping sleeve in the circumferential direction, and the clamping sleeve is installed on the outer sleeve through the cooperation of the three clamping blocks and the three spacing grooves.