CN103603547B - A kind of helicopter switch board mechanical cylinder lock - Google Patents

Abstract

The invention relates to a mechanical pin lock for a helicopter control cabinet, comprising an outer lock core, a middle lock core, an inner lock core, a push rod, a cam lever, a lock tongue and the like. The inner and middle layer lock cylinders are placed in the outer lock cylinder, and the outer, middle and inner layer pins are respectively arranged in the inner, middle and outer three layers of lock cylinders. When the key for the driver is inserted and turned, the inner lock cylinder rotates, the middle lock cylinder and the outer lock cylinder do not move, the bolt pops out, and the lock changes from the locked state to the unlocked state; when the key for maintenance personnel is inserted and turned, The inner lock cylinder and the middle lock cylinder rotate at the same time, and the outer lock cylinder does not move, so that the lock is changed from the locked state to the unlocked state. The feature of the present invention is that it adopts a three-layer nested structure, and the marbles of the inner layer, the middle layer, and the outer layer are arranged in different lengths to realize that the lock of each control cabinet corresponds to a key for the driver, and the maintenance personnel use a key. All the locks of the control cabinets can be opened, making the locks easy to operate and easy to manage.

Description

A mechanical pin lock for a helicopter control cabinet

technical field

The invention relates to a mechanical pin lock device, in particular to a mechanical pin lock for a helicopter control cabinet.

Background technique

As the packaging platform of the helicopter control system, the helicopter control cabinet is packaged with the electrical control system, communication system, remote sensing monitoring system, internal sensor monitoring system and alarm system, etc. To protect checkpoints, in order to prevent man-made intentional damage or unconscious misoperation, the control cabinets of helicopters are equipped with safety locks. In this way, for the use and maintenance of the helicopter, both the helicopter pilot and the maintenance personnel must be equipped with the key or password of the control cabinet.

At present, the locks used in the control cabinet of the helicopter are mainly in the following ways:

1. Electronic lock. Including digital combination locks, induction combination locks, etc. The advantages are simple operation and light weight. The disadvantages are that the reliability is average, maintenance is difficult, and separate additional power supply equipment is required, which may interfere with the electrical system of the helicopter itself. In addition, There is also some misidentification in the sensitivity of the induction combination lock;

2. Mechanical tumbler lock. The principle is similar to that of ordinary tumbler locks, but the structural strength has been improved. The advantages are high reliability, simple maintenance and repair, and no external input is required. The disadvantage is that in order to ensure the safety of the helicopter and the pilot, each helicopter control cabinet Lock cylinders are different, and maintenance personnel must match a key for each helicopter. In this way, the number of keys provided by maintenance personnel will increase with the number of helicopters, making management difficult and indirectly lengthening the maintenance cycle.

So far, aiming at the safety, reliability, ease of operation and ease of management of the helicopter control cabinet lock, an improved lock based on the ordinary mechanical tumbler lock is proposed, which provides a feasible method for the actual use of the lock in the helicopter control cabinet.

Contents of the invention

Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a mechanical pin lock for a helicopter control cabinet.

The purpose of the present invention is achieved through the following technical solutions:

.A mechanical tumbler lock for a helicopter control cabinet, comprising a middle lock cylinder 2, an inner lock cylinder 3, an inner pin 4, a middle pin 5, a pin spring 7, a packing 8, a push rod 9, a cam lever 10, and a dead bolt 11. Lock bolt housing 12, ejector spring 15, compression spring 16, key 18 for the driver, outer lock cylinder 1, outer pin 6, key 19 for maintenance personnel;

The inner lock core 3 is a horizontal cylinder, and its front end is provided with a flat square long counterbore, and the two sides in the flat square long counterbore are respectively provided with key guide strips 13 . The rear end of the core of the inner lock core 3 is provided with a double key hole 22 of the inner lock core, and communicates with the flat square long counterbore of the inner lock core 3 . The upper and lower busbars of the cylinder of the inner lock core 3 are correspondingly arranged with five pairs of pinholes equidistantly, and communicate with the flat square slots of the inner lock core 3 . The central axis of the pin hole of the inner lock core 3, the central axis of the double key hole 22 of the inner lock core and the central axis of the cylinder of the inner lock core 3 are coplanar.

The middle layer lock cylinder 2 is a horizontal cylinder, and the front end is provided with an oblong counterbore. The rear end of the middle lock cylinder 2 is provided with a double key hole 23 of the middle lock cylinder, and communicates with the oblong counterbore of the middle lock cylinder 2 . Five pairs of pinholes are equidistantly arranged on the upper and lower busbars of the cylindrical body of the middle lock core 2, and communicate with the oblong counterbore of the middle lock core 2. The central axis of the pin hole of the middle layer lock core 2, the central axis of the double key hole 23 of the middle layer lock core and the central axis of the cylinder of the middle layer lock core 2 are coplanar.

The aperture size of the oblong counterbore of the middle lock core 2 is the same as the outer diameter of the cylinder of the inner lock core 3 . The depth of the hole of the oblong counterbore of the middle lock core 2 is the same as the length of the cylinder of the inner lock core 3 . The hole spacing of the pin holes of the inner lock core 3 is equal to the hole spacing of the pin holes of the middle layer lock core 2 . The double-key holes 23 of the middle layer lock cylinder are all the same in shape, size and hole wall thickness as the double-key holes 22 of the inner lock core.

The push rod 9 is a three-section connecting body, the front section is a short cylinder, the middle section is provided with a push rod double-head key 20, and the rear section short cylinder is provided with a push rod single-head key 21. The outer profile of the push rod double key 20 is identical to the shape and size of the middle layer lock core double key hole 23, and the length of the push rod double key 20 key is identical to the hole wall thickness of the middle layer lock core double key hole 23.

The cam lever 10 is a slat body, and the outer profile of one end is semi-arc, and the other end is provided with a single key hole 24 of the cam lever.

The front section of the driver's key 18 is a flat parallelepiped, and the rear section is a key handle. The width of the front section of the driver's key 18 is respectively provided with guide grooves on the front and back. uneven.

Said driver uses key 18 on it, five pairs of groove distances that are equally spaced arranged are equal to the hole spacing of the pin holes on the inner lock core 3, and the margins on both sides are equal to the length dimension of the inner lock core 3 flat square long counterbores. Equal, the thickness dimension of front section is equated with the width dimension of inner lock core 3 oblate long counterbores.

Dead bolt 11 is a wide plate body, and the lower plate surface of dead bolt 11 is provided with oval hole, and the major axis of oval hole is parallel with the bottom edge of dead bolt 11 plate surface, and the upper plate surface side limit of dead bolt 11 is provided with lock. Tongue protruding17.

The deadbolt housing 12 is a wide plate body, the middle part is provided with a groove through up and down, the center of the groove is provided with a spring hole seat, and the convex surface on both sides of the deadbolt housing 12 is provided with connecting bolt holes 14, and the deadbolt housing 12 is provided with a connecting bolt hole 14. The both sides convex surface of 12 wherein the inner edge upper part of right convex surface is fixedly connected with compression spring leaf 16.

The groove width dimension of the groove of the deadbolt housing 12 is equal to the width dimension of the deadbolt 11 , and the groove depth dimension of the groove of the deadbolt housing 12 is equal to the thickness dimension of the deadbolt 11 . The thickness dimension of the cam lever 10 is equal to the thickness dimension of the dead bolt 11 .

The outer lock core 1 is a square body, and its core is provided with an oblong through hole, and its rear end face is provided with a connecting threaded hole. The upper and lower surfaces of the outer lock core 1 are correspondingly arranged with five pairs of pinholes equidistantly, and communicate with the oblong through holes of the outer lock core 1 . The central axis of the pin hole is coplanar with the central axis of the oblong through hole of the outer lock core 1 .

The hole spacing of the pin holes of the outer lock core 1 is equal to the hole spacing of the pin holes of the middle layer lock core 2 . The aperture size of the oblong through hole at the core of the outer lock core 1 is the same as the outer diameter of the cylinder of the middle layer lock core 2 . The thickness dimension of outer lock cylinder 1 square body is identical with the length dimension of middle layer lock cylinder 2 cylinders.

The front section of key 19 for maintenance personnel is a flat square, and the rear section is a key handle; There are five pairs of grooves corresponding to the sides at equal distances, and the depths of the five pairs of grooves are uneven.

Maintenance personnel use the key 19 on which the five pairs of grooves arranged at equal distances are equal to the hole spacing of the pin holes on the inner lock core 3, and the side distances are equal to the length and size of the inner lock core 3 flat square long counterbores. The thickness dimension of front section is equated with the width dimension of inner lock core 3 flat square long counterbores.

The length dimension of the front section of the key 19 used by the maintenance personnel is the sum of the length dimension of the front section of the key 18 used by the driver and the hole wall thickness dimension of the double key hole 2 of the middle layer lock core.

The outer pins 6, the middle pins 5, and the inner pins 4 are all cones with the same taper. The pinholes of the inner lock core 3, the pinholes of the middle lock core 2, and the pinholes of the outer lock core 1 are all tapered holes with the same taper. The hole taper of pin hole, the pin hole of middle layer lock core 2, the pin hole of outer lock core 1 is identical with the body taper of outer layer pin 6, middle pin pin 5, inner pin pin 4. The diameter of the small end hole of the pin hole of the outer lock core 1 is equal to the diameter of the large end hole of the pin hole of the middle lock core 2, and the diameter of the small end hole of the pin hole of the middle lock core 2 is the same as that of the pin hole of the inner lock core 3. The large end hole diameters are equal in size.

The length dimensions of the outer pins 6 distributed in the pin holes on the outer lock cylinder 1 and the corresponding radially distributed middle pins 5 in the pin holes of the middle lock core 2 and the inner pins 4 in the pin holes of the inner lock core 3 same. The diameter of the small end of the correspondingly arranged outer pins 6 is equal to the large end diameter of the corresponding middle pin 5, and the small end diameter of the corresponding middle pin 5 is the same as the large end diameter of the corresponding inner pin 4. equal.

The outer lock core 1 is axially distributed in the pinholes and the lengths of the outer pins 6 are different; the middle lock core 2 is axially distributed in the pinholes. The lengths of the middle pins 5 are different; The lengths and dimensions of the inner layer pins 4 arranged axially in the pin holes of the lock core 3 are different.

The inner lock cylinder 3 is sleeved in the oblong counterbore of the middle lock cylinder 2, and placed in the core of the outer lock cylinder 1 with the middle lock cylinder 2 . The double key hole 22 of the inner lock core corresponds to the double key hole 23 of the middle layer lock core, and is arranged in the oblong through hole at the rear end of the outer lock core 1 . The inner end surface of the double key hole 22 of the inner lock core is fixedly connected with a blocking washer 26 by screws.

The dead bolt housing 12 is connected to the rear end surface of the outer lock core 1 by bolts, and the groove opening of the dead bolt housing 12 faces the opening of the oblong through hole of the outer lock core 1 . The lock tongue 11 is fitly connected in the groove of the lock tongue housing 12 , and the lock tongue tooth protrusion 17 on the lock tongue 11 corresponds to the compression spring piece 16 on the lock tongue housing 12 .

The cam driving lever 10 is placed in the elliptical hole of the dead bolt 11, and the half arc of its end contacts with the inner edge of the elliptical hole of the dead bolt 11. The cam driving lever 10 is connected together with the push rod single head key 21 of the rear section of the push rod 9 through the single key hole 24 of the cam driving rod. The end of push rod single head key 21 is in contact with one end of push rod spring 15, and the other end of push rod spring 15 is located on the spring hole seat of dead bolt housing 12. The push rod double-headed key 20 in the middle section of the push rod 9 is matched and connected in the hole of the double key hole 22 of the inner lock core, and the one-key end face of the push rod double-headed key 20 is against the blocking washer 26 . Push rod 9 front sections cooperate to be connected with the inner ring of blocking washer 26, and the end of push rod 9 front sections stretches in the flat square long sink hole of interior lock core 3.

Five pairs of outer pins 6, five pairs of middle pins 5, and five pairs of inner pins 4 are respectively arranged in the pin holes of the outer lock core 1, the pin holes of the middle lock core 2, and the pin holes of the inner lock core 3.

The outer lock cylinder 1 is radially connected to the middle layer lock cylinder 2 through one end of the correspondingly arranged outer layer pins 6 in the corresponding pin holes. One end face of the correspondingly arranged outer pins 6 is in contact with one end face of the correspondingly arranged middle pin 5 in the pin hole corresponding to the middle lock core 2, and the other end face of the correspondingly set outer pins 6 is in contact with the correspondingly set pin spring 7. One end faces are in contact, and the other end face of the correspondingly arranged pin spring 7 is fixedly connected to the outer lock cylinder 1 through the correspondingly arranged sealing packing 8 . The middle lock core 2 is radially connected to the inner lock core 3 through the other end of the corresponding middle pin 5 . The other end surface of the correspondingly arranged middle pin 5 is in contact with one end face of the correspondingly set inner pin 4 in the corresponding pin hole of the inner lock core 3, and the other end of the correspondingly set inner pin 4 extends into the inner lock core 3 In the flat square long counterbore.

The driver inserts the key 18 into the flat square long counterbore of the inner lock cylinder 3, the arc edge of the front section is in axial contact with the ejector rod 9, and the ejector rod double-headed key 20 of the ejector rod 9 is connected to the inside of the inner lock cylinder 3. In the double key hole 22 of the lock cylinder. The bottom edge of five pairs of grooves on both sides of the front section of the driver's key 18 is respectively in contact with one end face of five pairs of inner layer pins 4 of the inner lock core 3, and the other end face of the five pairs of inner layer pins 4 is respectively in contact with the middle layer lock. One end face of the five pairs of pins 5 in the middle layer of the core 2 is in contact with the upper and lower busbars of the cylinder of the inner lock core 3, and the radial connection between the cylinder of the inner lock core 3 and the oblong counterbore of the middle lock core 2 completely disengaged. Turning the key handle transmits torque to the lock bolt 11 through the inner lock cylinder 3, the inner pin 4, the push rod double key 20 and the cam lever 10 to form two states:

Turn the driver's key 18 clockwise 180°, the upper part of the deadbolt 11 protrudes out of the groove of the deadbolt housing 12, and the compressed spring piece 16 on the deadbolt housing 12 is against the lower edge of the tooth protrusion 17 of the dead bolt , the lock is locked;

Turn the driver's key 18 counterclockwise 180°, the deadbolt 11 is completely retracted into the groove of the deadbolt housing 12, and the compressed spring piece 16 on the deadbolt housing 12 is against the upper edge of the tooth protrusion 17 of the dead bolt. Form the unlocked state of the dead bolt 11;

The maintenance personnel insert the key 19 into the flat square long counterbore of the inner lock cylinder 3, the arc-shaped raised edge of the front section pushes the ejector rod 9 to move axially, and the ejector rod double-headed key 20 of the ejector rod 9 breaks away from the inner lock cylinder 3. The inner lock core double key hole 22 is keyed in the middle layer lock core double key hole 23 of the middle layer lock core 2 . The five pairs of groove bottoms on both sides of the front section of the key 19 are used by maintenance personnel to contact with one end faces of the five pairs of inner layer pins 4 of the inner lock core 3 respectively, and the other end faces of the five pairs of inner pins 4 are respectively in contact with the middle layer lock. One end faces of the five pairs of middle layer pins 5 of the core 2 are correspondingly in contact with each other, and the other end faces of the five pairs of middle pins 5 are respectively corresponding to one end faces of the five outer layer pins 6 at the upper and lower busbars of the cylinder of the middle lock core 2. contact, the radial connection between the cylinder of the middle layer lock core 2 and the oblong through hole of the outer lock core 1 is completely disengaged. Turning the key handle transmits torque through the inner lock cylinder 3, the inner pin 4, the middle lock core 2, the middle pin 5, the push rod double-headed key 20 and the cam lever 10 to act on the lock bolt 11 to form two states:

Turn the key 19 for maintenance personnel clockwise 180°, the upper part of the deadbolt 11 protrudes out of the groove of the deadbolt housing 12, and the compressed spring piece 16 on the deadbolt housing 12 is against the lower side of the tongue protrusion 17 , forming the locking state of the dead bolt 11.

Turn the key 19 for maintenance personnel counterclockwise 180°, the deadbolt 11 is completely retracted into the groove of the deadbolt housing 12, and the compressed spring piece 16 on the deadbolt housing 12 is against the upper side of the tooth protrusion 17 of the dead bolt, Form the lock bolt 11 unlocked state.

Beneficial technical effect of the present invention is embodied in the following aspects:

1. The biggest feature of the present invention is that it adopts a three-layer nested structure, so that the key used by the driver can only open the corresponding locks, while the maintenance personnel can use one key to open all the locks, which is convenient, quick and easy to operate ,manage;

2. The entire lock body is improved on the basis of the existing ordinary mechanical pin lock, and can be directly processed and produced by using the existing technology and processing equipment, saving development costs and production cycles;

3. The lock body of the entire control cabinet is designed as an independent purely mechanical structure, which will neither interfere with the electronic components and communication signals in the helicopter control cabinet, nor provide additional drive energy from external connections. The structure is compact, safe and reliable.

Description of drawings

Fig. 1 is a three-dimensional outline view of the overall structure of the present invention.

Fig. 2 is a three-dimensional sectional view of the unlocked state of the present invention.

Fig. 3 is a three-dimensional cross-sectional view of the present invention in a locked state.

Fig. 4 is a schematic diagram of the connection relationship between the lock tongue, the lock tongue housing, the cam lever and the ejector rod in the locked state of the present invention.

Fig. 5 is a schematic diagram of the connection relationship between the lock bolt, the lock bolt housing, the cam lever and the ejector rod in the unlocked state of the present invention.

Fig. 6 is a cross-sectional view of the structure of the present invention after inserting the helicopter pilot's key.

Fig. 7 is a cross-sectional view of the structure of the present invention after inserting the key of the helicopter maintenance personnel.

Fig. 8 is a three-dimensional view of the ejector rod of the present invention.

Fig. 9 is a three-dimensional sectional view of the inner lock cylinder of the present invention.

Fig. 10 is a three-dimensional sectional view of the middle lock cylinder of the present invention.

Fig. 11 is a three-dimensional view of the cam lever of the present invention.

Serial number in the figure, outer lock cylinder 1, middle lock cylinder 2, inner lock cylinder 3, inner pin 4, middle pin 5, outer pin 6, pin spring 7, sealing packing 8, ejector rod 9, cam lever 10, Lock tongue 11, lock tongue housing 12, key guide bar 13, connecting bolt hole 14, ejector rod spring 15, compression spring piece 16, lock tongue tooth protrusion 17, key for driver 18, key for maintenance personnel 19, ejector rod Double key 20, push rod single key 21, inner lock core double key hole 22, middle layer lock core double key hole 23, cam lever single key hole 24, pin hole 25, blocking washer 26.

detailed description

The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

Referring to Fig. 1, Fig. 2 and Fig. 3, a mechanical tumbler lock for a helicopter control cabinet includes a middle lock cylinder 2, an inner lock cylinder 3, an inner pin 4, a middle pin 5, a pin spring 7, a sealing packing 8, and a push rod 9. Cam lever 10, dead bolt 11, dead bolt housing 12, push rod spring 15, compression spring leaf 16 and key 18 for the driver, outer lock cylinder 1, outer pin 6, and key 19 for maintenance personnel.

Referring to Fig. 9 , the inner lock cylinder 3 is a horizontal cylinder, and its front end is provided with a flat square long counterbore, and the two sides in the flat square long counterbore are respectively provided with key guide strips 13 . The rear end of the core of the inner lock core 3 is provided with a double key hole 22 of the inner lock core, and communicates with the flat square long counterbore of the inner lock core 3 . The upper and lower busbars of the cylinder of the inner lock core 3 are correspondingly arranged with five pairs of pinholes equidistantly, and communicate with the flat square slots of the inner lock core 3 . The central axis of the pin hole of the inner lock core 3, the central axis of the double key hole 22 of the inner lock core and the central axis of the cylinder of the inner lock core 3 are coplanar.

Referring to Fig. 10, the middle layer lock core 2 is a horizontal cylinder, and its front end is provided with an oblong counterbore. The rear end of the middle lock cylinder 2 is provided with a double key hole 23 of the middle lock cylinder, and communicates with the oblong counterbore of the middle lock cylinder 2 . Five pairs of pinholes are equidistantly arranged on the upper and lower busbars of the cylindrical body of the middle lock core 2, and communicate with the oblong counterbore of the middle lock core 2. The central axis of the pin hole of the middle layer lock core 2, the central axis of the double key hole 23 of the middle layer lock core and the central axis of the cylinder of the middle layer lock core 2 are coplanar. The hole spacing of the pin holes of the inner lock core 3 is equal to the hole spacing of the pin holes of the middle layer lock core 2 .

Referring to Fig. 8 and Fig. 10, the ejector rod 9 is a three-section connecting body, the front section is a short cylinder, the middle section is provided with an ejector rod double-head key 20, and the rear section short cylinder is provided with a ejector rod single-head key 21. The outer profile of the push rod double key 20 is identical to the shape and size of the middle layer lock core double key hole 23, and the length of the push rod double key 20 key is identical to the hole wall thickness of the middle layer lock core double key hole 23.

Referring to FIG. 11 , the cam lever 10 is a slat body, and the outer contour of one end is semi-arc, and the other end is provided with a single key hole 24 of the cam lever.

The front section of the driver's key 18 is a flat parallelepiped, and the rear section is a key handle. The width of the front section of the driver's key 18 is respectively provided with guide grooves on both sides to the front and back, and the top of the front section is an arc edge, and the two sides of the front section are correspondingly arranged with five pairs of grooves at equal distances. Depth varies.

The distance between the five pairs of grooves arranged equidistantly on the key 18 for the driver is equal to the hole spacing of the pinholes 25I on the inner lock core 3, and the margins on both sides are equal to the length of the flat square long counterbore of the inner lock core 3. Dimensions are equal, and the thickness dimension of front section is equated with the width dimension of inner lock core 3 flat square long counterbores.

Referring to Fig. 4 and Fig. 5, the dead bolt 11 is a wide plate body, and the lower plate surface of the dead bolt 11 is provided with an oval hole. One side of the face is provided with a dead bolt tooth protrusion 17.

The deadbolt housing 12 is a wide plate body, the middle part is provided with a groove through up and down, the center of the groove is provided with a spring hole seat, and the convex surfaces on both sides of the deadbolt housing 12 are provided with connecting bolt holes 14, and the deadbolt housing The two side convex surfaces of the body 12 are fixedly connected with compression springs 16 on the inner edge top of the right convex surface. The effect of compression spring sheet is to prevent the state change of dead bolt from being caused by the rebound force of push rod spring 15.

The outer lock core 1 is a square body, and its core is provided with an oblong through hole, and its rear end face is provided with a connecting threaded hole. On the upper and lower sides of the outer lock core 1, five pairs of marble holes 25Ⅲ are correspondingly and equidistantly arranged, and communicate with the oblong through holes of the outer lock core 1. The central axis of the pin hole 25III is coplanar with the central axis of the oblong through hole of the outer lock core 1. The hole spacing of the pin holes of the outer lock core 1 is equal to the hole spacing of the pin holes of the middle layer lock core 2 .

The front section of key 19 used by maintenance personnel is a flat square body, and the rear section is a key handle; Five pairs of grooves are equally spaced on the sides, and the depths of the five pairs of grooves are uneven.

Maintenance personnel use the key 19 on which the five pairs of grooves arranged at equal distances are equal to the hole spacing of the pin holes on the inner lock core 3, and the side distances are equal to the length and size of the inner lock core 3 flat square long counterbores. The thickness dimension of front section is equated with the width dimension of inner lock core 3 flat square long counterbores.

The length dimension of the front section of the key 19 used by the maintenance personnel is the sum of the length dimension of the front section of the key 18 used by the driver and the hole wall thickness dimension of the double key hole 2 of the middle layer lock core.

The inner lock cylinder 3 is sleeved in the oblong counterbore of the middle lock cylinder 2, and placed in the core of the outer lock cylinder 1 with the middle lock cylinder 2 . The double key hole 22 of the inner lock core corresponds to the double key hole 23 of the middle layer lock core, and is arranged in the oblong through hole at the rear end of the outer lock core 1 . The inner end surface of the double key hole 22 of the inner lock core is fixedly connected with a blocking washer 26 by screws.

The dead bolt housing 12 is connected to the rear end surface of the outer lock core 1 by bolts, and the groove opening of the dead bolt housing 12 faces the opening of the oblong through hole of the outer lock core 1 . The lock tongue 11 is fitly connected in the groove of the lock tongue housing 12 , and the lock tongue tooth protrusion 17 on the lock tongue 11 corresponds to the compression spring piece 16 on the lock tongue housing 12 .

The cam driving lever 10 is placed in the elliptical hole of the dead bolt 11, and the half arc of its end contacts with the inner edge of the elliptical hole of the dead bolt 11. The cam driving lever 10 is connected together with the push rod single head key 21 of the rear section of the push rod 9 through the single key hole 24 of the cam driving rod. The end of push rod single head key 21 is in contact with one end of push rod spring 15, and the other end of push rod spring 15 is located on the spring hole seat of dead bolt housing 12. The push rod double-headed key 20 in the middle section of the push rod 9 is matched and connected in the hole of the double key hole 22 of the inner lock core, and the one-key end face of the push rod double-headed key 20 is against the blocking washer 26 . Push rod 9 front sections cooperate to be connected with the inner ring of blocking washer 26, and the end of push rod 9 front sections stretches in the flat square long sink hole of interior lock core 3.

Five pairs of outer pins 6, five pairs of middle pins 5, and five pairs of inner pins 4 are respectively arranged in the pin holes of the outer lock core 1, the pin holes of the middle lock core 2, and the pin holes of the inner lock core 3.

The outer lock cylinder 1 is radially connected to the middle layer lock cylinder 2 through one end of the correspondingly arranged outer layer pins 6 in the corresponding pin holes. One end face of the correspondingly arranged outer pins 6 is in contact with one end face of the correspondingly arranged middle pin 5 in the pin hole corresponding to the middle lock core 2, and the other end face of the correspondingly set outer pins 6 is in contact with the correspondingly set pin spring 7. One end faces are in contact, and the other end face of the correspondingly arranged pin spring 7 is fixedly connected to the outer lock cylinder 1 through the correspondingly arranged sealing packing 8 . The middle lock core 2 is radially connected to the inner lock core 3 through the other end of the corresponding middle pin 5 . The other end surface of the correspondingly arranged middle pin 5 is in contact with one end face of the correspondingly set inner pin 4 in the corresponding pin hole of the inner lock core 3, and the other end of the correspondingly set inner pin 4 extends into the inner lock core 3 In the flat square long counterbore. A pin spring 7 is installed between the inner and outer pin pins 6 of the pin hole of the outer lock core 1 and the sealing packing 8, which is used for the reset of the pin when the key is inserted and pulled out.

Example 1

Referring to Fig. 6, the driver inserts the key 18 into the flat and long counterbore of the inner lock cylinder 3, the arc edge of the front section is in axial contact with the ejector rod 9, and the ejector rod double-headed key 20 of the ejector rod 9 is keyed inside In the inner lock core double key hole 22 of the lock core 3. The bottom edge of five pairs of grooves on both sides of the front section of the driver's key 18 is respectively in contact with one end face of five pairs of inner layer pins 4 of the inner lock core 3, and the other end face of the five pairs of inner layer pins 4 is respectively in contact with the middle layer lock. One end face of the five pairs of pins 5 in the middle layer of the core 2 is in contact with the upper and lower busbars of the cylinder of the inner lock core 3, and the radial connection between the cylinder of the inner lock core 3 and the oblong counterbore of the middle lock core 2 completely disengaged. And or middle layer pin 5 or outer pin 6 are still radially connected middle layer lock core 2 and outer lock core 1, that is to say inner lock core 3 can rotate with key, and middle layer lock core 2 and outer lock core 1 do not move.

Clockwise 180° turns the key 18 for the driver to make the inner lock core 3 rotate, and the middle layer lock core 2 and the outer lock core 1 do not move. Simultaneously, referring to Fig. 8, Fig. 9 and Fig. 11, due to the connection between the push rod double key 20 and the inner lock core double key hole 22 and the connection between the push rod single head key 21 and the cam lever single key hole 24, the cam The driving rod 10 also rotates with the inner lock cylinder 3 . Referring to Fig. 4, when the top of the cam lever 10 reaches the upper edge of the oval hole in the deadbolt 11, the upper part of the deadbolt 11 protrudes out of the groove of the deadbolt housing 12, and the compression spring piece 16 on the deadbolt housing 12 Butt against the lower edge of the 17 tooth protrusions of the dead bolt tooth protrusion, the lockset is in a locked state.

Turn the driver's key 18 counterclockwise 180°, see Fig. 5, when the top of the cam lever 10 reaches the lower edge of the oval hole in the dead bolt 11, the dead bolt 11 is completely retracted into the groove of the dead bolt housing 12, and the lock The compression spring piece 16 on the tongue housing 12 abuts against the upper edge of the tooth protrusion 17 of the dead bolt, and the lockset is in an unlocked state.

Example 2

Referring to Fig. 7, the maintenance personnel inserts the key 19 into the flat square long counterbore of the inner lock cylinder 3, and the arc-shaped raised edge of the front section pushes the push rod 9 to move axially, so that the compression spring 15 at the rear end of the push rod 9 is compressed, The push rod double key 20 of the push rod 9 breaks away from the inner lock core double key hole 22 of the inner lock core 3 and is keyed in the middle layer lock core double key hole 23 of the middle layer lock core 2 . The five pairs of groove bottoms on both sides of the front section of the key 19 are used by maintenance personnel to contact with one end faces of the five pairs of inner layer pins 4 of the inner lock core 3 respectively, and the other end faces of the five pairs of inner pins 4 are respectively in contact with the middle layer lock. One end faces of the five pairs of middle layer pins 5 of the core 2 are correspondingly in contact with each other, and the other end faces of the five pairs of middle pins 5 are respectively corresponding to one end faces of the five outer layer pins 6 at the upper and lower busbars of the cylinder of the middle lock core 2. contact, the radial connection between the cylinder of the middle layer lock core 2 and the oblong through hole of the outer lock core 1 is completely disengaged. And or the middle layer pin 5 or the inner pin pin 4 are still radially connected to the middle lock core 2 and the inner lock core 3, that is to say the middle layer lock core 2 and the inner lock core 3 can rotate together with the key, while the outer lock core 1 does not move.

Rotate the key 19 for maintenance personnel clockwise 180°, so that the inner lock core 3 and the middle layer lock core 2 rotate simultaneously, and the outer lock core 1 does not move. The cam lever 10 rotates with the inner lock cylinder 3 and the middle lock cylinder 2 . Referring to Fig. 4, when the top of the cam lever 10 reaches the upper edge of the oval hole in the deadbolt 11, the upper part of the deadbolt 11 protrudes out of the groove of the deadbolt housing 12, and the compression spring piece 16 on the deadbolt housing 12 Butt against the lower edge of the 17 tooth protrusions of the dead bolt tooth protrusion, the lockset is in a locked state.

Turn the key 19 for maintenance personnel counterclockwise 180°, see Figure 5, when the top of the cam lever 10 reaches the lower edge of the oval hole in the dead bolt 11, the dead bolt 11 is completely retracted into the groove of the dead bolt housing 12, and the lock The compression spring piece 16 on the tongue housing 12 abuts against the upper edge of the tooth protrusion 17 of the dead bolt, and the lockset is in an unlocked state.

Claims (7)

1. A mechanical tumbler lock for a helicopter control cabinet, comprising a middle layer lock cylinder (2), an inner lock cylinder (3), an inner layer pin (4), a middle pin pin (5), a pin spring (7), a sealing packing (8 ), ejector rod (9), cam lever (10), deadbolt (11), deadbolt housing (12), ejector rod spring (15), compression spring (16) and key for driver (18) ; The inner lock core (3) is a horizontal cylinder, and its front end is provided with a flat square long counterbore, and the two sides in the flat square long counterbore are respectively provided with key guide strips (13); the inner lock core (3) The rear end of the core is provided with an inner lock core double key hole (22), and communicates with the flat square long counterbore of the inner lock core (3); the upper and lower busbars of the inner lock core (3) correspond to Five pairs of pinholes are equidistantly arranged, and communicate with the flat and long counterbore of the inner lock core (3); It is coplanar with the central axis of the cylinder of the inner lock core (3); the middle lock core (2) is a horizontal cylinder, and its front end is provided with a long round counterbore; the rear end of the middle lock core (2) is provided with a middle lock Core double key hole (23), and communicates with the oblong counterbore of middle layer lock core (2); The upper and lower generatrices of described middle layer lock core (2) are correspondingly arranged with five pairs of marble holes equidistantly on the cylinder, and It communicates with the oblong counterbore of middle layer lock core (2); the central axis of pin hole central axis of middle layer lock core (2), the central axis of middle layer lock core double key hole (23) and the central axis of middle layer lock core (2) cylinder surface; the aperture size of the oblong counterbore of the middle lock core (2) is the same as the outer diameter of the cylinder of the inner lock core (3); the depth of the oblong counterbore of the middle lock core (2) is the same as that of the inner lock core (3) The cylinders have the same length and size; The hole spacing of the pin holes of the inner lock core (3) is equal to the hole spacing of the pin holes of the middle lock core (2); the double key holes (23) of the middle lock core and the double key holes (22) of the inner lock core The shape, size and thickness of the hole wall are the same; The push rod (9) is a three-section connecting body, the front section is a short cylinder, the middle section is provided with a push rod double-head key (20), and the rear section short cylinder is provided with a push rod single-head key (21); The outer contour of the double-head key (20) is identical in shape and size to the double-key hole (23) of the middle layer lock core, and the length of the double-head key (20) key of the ejector rod is identical to the hole wall thickness of the double-key hole (23) of the middle layer lock core; The cam lever (10) is a slat body, and the outer contour of one end is semi-arc, and the other end is provided with a cam lever single keyhole (24); the front section of the driver's key (18) is a flat square , the rear section is a key handle; the front section of the driver's key (18) is provided with guide grooves on the front and back sides of the width direction, the top of the front section is an arc edge, and the two sides of the front section are correspondingly arranged with five pairs of equal distances. Grooves, the depth of the five pairs of grooves is uneven; The distance between the five pairs of grooves arranged equidistantly on the key (18) for the driver is equal to the hole spacing of the pinholes on the inner lock core (3), and the distance between the two sides is flat and square long than that of the inner lock core (3). The length dimension of the counterbore is equal, and the thickness dimension of the front section is equal to the width dimension of the flat square long counterbore of the inner lock core (3); Described dead bolt (11) is a wide plate body, and the bottom plate surface of dead bolt (11) is provided with oval hole, and the major axis of oval hole is parallel with the bottom edge of dead bolt (11) plate surface, and dead bolt (11) One side of the upper surface of the upper plate is provided with a locking tongue tooth protrusion (17); the locking tongue housing (12) is a wide plate body, and the middle part is provided with a groove through which the upper and lower ends are connected, and a spring hole seat is arranged at the center of the groove. , the convex surfaces on both sides of the deadbolt housing (12) are provided with connecting bolt holes (14), the convex surfaces on both sides of the deadbolt housing (12) wherein the upper part of the inner side of the right convex surface is fixedly connected with the compression spring (16) ; The groove width dimension of the groove of the deadbolt housing (12) is equal to the width dimension of the deadbolt (11), and the groove depth dimension of the groove of the deadbolt housing (12) is equal to the thickness dimension of the deadbolt (11); The thickness dimension of described cam lever (10) is equal to the thickness dimension of dead bolt (11); It is characterized in that it also includes an outer lock cylinder (1), outer pins (6), and a key (19) for maintenance personnel; The outer lock cylinder (1) is a square body, the core is provided with a long round through hole, and the rear end surface is provided with a connecting threaded hole; the upper and lower sides of the outer lock cylinder (1) are correspondingly arranged with five pairs of pinholes equidistantly, And it communicates with the oblong through hole of the outer lock cylinder (1); The central axis of the pin hole of the outer lock core (1) is coplanar with the central axis of the oblong through hole of the outer lock core (1); The hole spacing of the pinholes of the pinholes is equal; the aperture size of the oblong through hole in the core of the outer lock core (1) is the same as the outer diameter of the cylinder of the middle lock core (2); the outer lock core (1) square The thickness dimension of body is identical with the length dimension of middle layer lock core (2) cylinder; The front section of key (19) of described maintenance personnel is flat square, and the rear section is a key handle; The front section of key (19) of described maintenance personnel is The front and back sides of the width direction are respectively provided with guide grooves, the top of the front section is an arc-shaped raised edge, and the two sides of the front section are correspondingly arranged with five pairs of grooves at equal distances, and the depths of the five pairs of grooves are uneven; Maintenance personnel equidistantly arrange five pairs of grooves on it with the key (19) and the hole spacing of the marble holes on the inner lock core (3) is equal, and the margins on both sides are flat, square, long and heavy with the inner lock core (3). The length dimensions of the holes are equal, and the thickness dimension of the front section is equal to the width dimension of the inner lock core (3) flat square long counterbore; the front section length dimension of the key (19) for the maintenance personnel is the front section of the key (18) for the driver The sum of the length dimension and the hole wall thickness dimension of the double key hole (23) of the middle lock core; the inner lock core (3) is sleeved in the oblong counterbore of the middle lock core (2), and placed on the core of the outer lock cylinder (1); the inner lock cylinder double-key hole (22) corresponds to the middle layer lock cylinder double-key hole (23), and is arranged in the oblong through hole at the rear end of the outer lock cylinder (1); the inner lock The inner end face of the core double key hole (22) is fixedly connected with the blocking washer (26) by screws; the dead bolt housing (12) is connected to the rear end face of the outer lock core (1) by bolts, and the dead bolt housing (12) The groove opening of the outer lock cylinder (1) faces the opening of the oblong through hole; the dead bolt (11) is matched and connected in the groove of the dead bolt housing (12), and the dead bolt teeth on the dead bolt (11) Convex (17) is corresponding with the compression spring sheet (16) on the dead bolt housing (12); The cam driving lever (10) is placed in the elliptical hole of the dead bolt (11), and the half arc of its end is in contact with the inner edge of the elliptical hole of the dead bolt (11); the cam driving lever (10) is driven by the cam Rod single key hole (24) is connected together with the push rod single head key (21) of the rear section of the push rod (9); the end of the push rod single head key (21) is connected with the push rod spring (15) The heads are in contact with each other, and the other end of the ejector rod spring (15) is arranged on the spring hole seat of the deadbolt housing (12); In the hole of the core double key hole (22), the one-key end face of the push rod double-headed key (20) is against the blocking washer (26); circle, the end of the front section of the push rod (9) stretches in the flat square long counterbore of the inner lock core (3); The five outer pins (6), five pairs of middle pins (5), and five pairs of inner pins (4) are respectively arranged in the pinholes of the outer lock cylinder (1), the pinholes of the middle lock core (2), and the inner pinholes. In the pin hole of the lock core (3); the outer lock core (1) is radially connected to the middle layer lock core (2) through one end of the corresponding outer layer pin (6) in the corresponding pin hole; One end surface of the outer layer pins (6) provided is in contact with one end face of the correspondingly arranged middle pins (5) in the pin hole corresponding to the middle layer lock cylinder (2), and the other end face of the correspondingly set outer pins (6) is in contact with One end face of the corresponding pin spring (7) is in contact with each other, and the other end face of the pin spring (7) is fixedly connected to the outer lock core (1) through the corresponding seal packing (8); the middle lock core ( 2) The other end of the correspondingly arranged middle pin (5) is radially connected to the inner lock cylinder (3); One end of the corresponding inner layer pins (4) in the pin holes is in contact with each other, and the other end of the corresponding inner pins (4) stretches into the flat and long counterbore of the inner lock cylinder (3); Insert the key (18) in the flat square long counterbore of the inner lock core (3), the arc edge of the front section is in axial contact with the push rod (9), and the push rod double-head key (20) key of the push rod (9) Connect in the inner lock core double keyhole (22) of inner lock core (3); The driver uses five pairs of groove bottoms on the front section both sides of the key (18) to connect with five pairs of inner lock cores (3) respectively. One end faces of the layer pins (4) are correspondingly in contact with each other, and the other end faces of the five pairs of inner pins (4) are respectively in contact with one end faces of the five pairs of middle pins (5) of the middle lock core (2) in the inner lock core (3). The upper and lower bus bars of the cylinder are in contact with each other, and the radial connection between the cylinder of the inner lock core (3) and the oblong counterbore of the middle layer lock core (2) is completely disengaged; turning the key handle through the inner lock core (3) ), the inner pin (4), the push rod double-headed key (20) and the cam lever (10) transmit torque to act on the dead bolt (11) to form two states: Turn the driver's key (18) clockwise 180°, the top of the deadbolt (11) stretches out of the groove of the deadbolt housing (12), and the compression spring (16) on the deadbolt housing (12) resists Below the tooth protrusion of the dead bolt tooth protrusion (17), the lockset is in a locked state; Turn the driver's key (18) counterclockwise 180°, the deadbolt (11) is completely retracted into the groove of the deadbolt housing (12), and the compression spring (16) on the deadbolt housing (12) is against the The upper side of the tooth protrusion of the dead bolt (17) forms the unlocked state of the dead bolt (11); The maintenance personnel insert the key (19) into the flat square long counterbore of the inner lock cylinder (3), and the arc-shaped raised edge of the front section pushes the push rod (9) to move axially, and the push rod (9) pushes Bar double-headed key (20) breaks away from the inner lock core double key hole (22) key of inner lock core (3) and is connected in the middle layer lock core double key hole (23) of middle layer lock core (2); 19) The bottoms of the five pairs of grooves on both sides of the front section are respectively in contact with one end faces of the five pairs of inner pins (4) of the inner lock cylinder (3), and the other end faces of the five pairs of inner pins (4) are respectively Correspondingly contact with one end face of five pairs of middle layer pins (5) of middle layer lock core (2), the other end face of five pairs of middle layer pins (5) is respectively with one end face of five outer layer pins (6) in middle layer lock core ( 2) The upper and lower busbars of the cylindrical body are in contact with each other, and the radial connection between the cylindrical body of the middle lock cylinder (2) and the long round through hole of the outer lock cylinder (1) is completely separated; turn the key handle to pass through the inner lock. Core (3), inner layer pins (4), middle layer lock core (2), middle layer pins (5), ejector rod double-headed key (20) and cam lever (10) transmit torque to act on deadbolt (11) to form Two states: Turn the maintenance personnel's key (19) clockwise 180°, the upper part of the deadbolt (11) stretches out of the groove of the deadbolt housing (12), and the compressed spring piece (16) on the deadbolt housing (12) resists Form the locking state of the dead bolt (11) under the tooth protrusion of the dead bolt (17); Turn the key (19) for maintenance personnel counterclockwise 180°, the deadbolt (11) is completely retracted into the groove of the deadbolt housing (12), and the compression spring (16) on the deadbolt housing (12) is against the The upper edge of the tooth protrusion of the dead bolt (17) forms the unlocked state of the dead bolt (11). 2. A mechanical pin lock for a helicopter control cabinet according to claim 1, characterized in that: said outer pins (6), middle pins (5) and inner pins (4) are conical with the same taper body. 3. The mechanical pin lock for a helicopter control cabinet according to claim 1, characterized in that: the pin hole of the inner lock core (3), the pin hole of the middle lock core (2) and the pin hole of the outer lock core (1) The holes are all tapered holes with the same taper. 4. A mechanical pin lock for a helicopter control cabinet according to claim 1 or 3, characterized in that: the diameter of the small end hole of the pin hole of the outer lock core (1) is the same as that of the pin hole of the middle lock core (2) The diameters of the large end holes of the middle layer lock core (2) are equal to the diameters of the small end holes of the pin holes of the inner lock core (3). 5. A mechanical pin lock for a helicopter control cabinet according to claim 1, 2 or 3, characterized in that: the pin hole of the inner lock core (3), the pin hole of the middle lock core (2), the outer lock core The hole taper of the marble hole of (1) is all identical with the body taper of outer layer marble (6), middle layer marble (5), inner layer marble (4). 6. The mechanical pin lock for a helicopter control cabinet according to claim 1, characterized in that: the correspondingly arranged outer pins (6), the correspondingly set middle pins (5), and the correspondingly set inner pins (4) have the same length and size; the diameter of the small end of the corresponding outer pin (6) is equal to the large end diameter of the corresponding middle pin (5), and the small diameter of the corresponding pin (5) is The diameter of the end is equal to the diameter of the large end of the corresponding inner layer pin (4). 7. A kind of mechanical pin lock for helicopter control cabinet according to claim 1, characterized in that: the lengths and dimensions of the pins of each outer layer arranged in the pin hole of the outer lock core (1) are different; The lengths and dimensions of the middle pins arranged in the pin holes of the middle lock cylinder (2) are different; the lengths of the inner pins arranged in the pin holes of the inner lock core (3) are different.