CN117868606A - Linkage lock and equipment with same - Google Patents

Abstract

The invention discloses a linkage lock, which comprises a plurality of lock points, wherein one end of a driving rod at each lock point is connected with a lock tongue through a transmission mechanism, and the other end of the driving rod is hinged with a connecting rod; one of the lock points is a lock point I, and the rest is a lock point II; the lock point I is also provided with a mandrel, one end of the mandrel is inserted into the through hole on the door plate, and the other end of the mandrel is connected with a corresponding driving rod; the limiting piece is used for connecting the door plate; the two ends of the elastic piece are respectively connected with the limiting piece and the mandrel; the interlock lock has: in a closed state, the mandrel and the limiting piece form a rotation-stopping fit, and the lock tongue extends out of the door plate along the first direction and is connected with the lock part on the mouth frame; in the opening state, the mandrel overcomes the elasticity of the elastic piece to move along the axial direction, so that the mandrel and the limiting piece are in anti-rotation fit, the mandrel rotates to drive the driving rod at the lock point I to rotate, the driving rod at the lock point I drives the driving rod at the lock point II to rotate through the connecting rod, and the driving rod drives the lock tongue to retract in the opposite direction of the first direction through the transmission mechanism and then to be separated from the lock part on the door plate.

Description

Linkage lock and equipment with same

Technical Field

The invention belongs to the technical field of quick opening and closing equipment door plates, and particularly relates to a linkage lock and equipment with the same.

Background

In order to meet the requirements of installation, maintenance, sealing and the like of internal elements, the equipment generally adopts a quick-release lock assembly door plate, and the assembly mode has the following defects: (1) In order to ensure the effective closing of the door plate, quick-release locks are assembled at multiple points respectively, so that the quick-release locks at each point are required to be operated in sequence in the opening and closing processes of the door plate, the operation process is complicated, and the opening and closing efficiency is low; (2) In order to meet the opening and closing requirements of the quick-release locks, the quick-release locks at all points are required to be distributed at positions which can be operated by hands, and higher requirements are put forward on the installation positions of equipment.

Disclosure of Invention

Aiming at the defects of the prior equipment that a door plate is assembled by adopting a multi-point quick-release lock, the invention aims to provide a linkage lock and equipment with the linkage lock.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a kind of linkage lock, including a plurality of lock points, each lock point has lock tongue, driving lever, one end of the driving lever is connected with lock tongue through the drive mechanism, its another end is hinged with connecting rod 30;

one of the lock points is a lock point I10, and the rest is a lock point II 20;

The lock point I is also provided with a mandrel 102, one end of the mandrel is inserted into the through hole on the door plate, and the other end of the mandrel is connected with a corresponding driving rod; the limiting piece is used for connecting the door plate; the two ends of the elastic piece are respectively connected with the limiting piece and the mandrel;

the interlock lock has: in a closing state, under the action of the elasticity of the elastic piece, the mandrel and the limiting piece form a rotation-stopping fit, and the lock tongue extends out of the door plate along the first direction and is connected with the lock part on the mouth frame; in the opening state, the mandrel overcomes the elasticity of the elastic piece and moves along the axial direction, so that the mandrel and the limiting piece are in anti-rotation fit, the mandrel rotates to drive the driving rod at the lock point I to rotate, the driving rod at the lock point I drives the driving rod at the lock point II to rotate through the connecting rod, and the driving rod drives the lock tongue to retract in the opposite direction of the first direction through the transmission mechanism and then to be separated from the lock part on the door plate and the mouth frame.

By means of the technical scheme, the linkage lockset has the following advantages:

(1) The lock is provided with a plurality of lock points, the driving rods in the rotating state at the lock points I can synchronously drive the driving rods at all the lock points II to rotate through the connecting rods while the driving rods at the lock points I are driven to rotate by rotating the mandrel at the lock points I, and the driving rods at each lock point can drive the corresponding lock tongue to extend out of the door plate or retract back into the door plate along the first direction through the transmission mechanism;

(2) The opening and closing of the linkage lock are controlled by the mandrel at the lock point I, and when the linkage lock is assembled, the lock point I is only required to be installed at the position which is most favorable for manual operation, and the installation position of the residual lock point II is not strictly required, so that the application range of the equipment can be improved.

In an embodiment, the lock point is further provided with a bracket for connecting the door panel, and the bracket is provided with a guide seat for forming sliding fit with the lock tongue so that the lock tongue extends out of the door panel along the first direction or is retracted back into the door panel along the opposite direction of the first direction.

The advantages are that: the support is used as a carrier, so that the structural strength of the door plate is not damaged as much as possible, and meanwhile, the process that the lock tongue extends out of the door plate or is retracted into the door plate is smoother by virtue of the guide seat arranged on the support.

In an embodiment, the spindle and the limiting member are in rotation-stopping fit by adopting a fit structure of a convex key and a key groove.

In an embodiment, the limiting member is a limiting housing 105 hollow along an axial direction, a first key slot 1051 extending along the axial direction is provided on an inner wall of the limiting housing, a protruding key 1021 is provided on an outer wall of the spindle, and when the linkage lock is in a closed state, the protruding key is clamped into the first key slot to form a rotation-stopping fit; when the linkage lock is in an open state, the mandrel overcomes the elastic force of the elastic piece and moves along the axial direction, and the convex key is driven to move out of the first key groove so as to release the rotation stopping fit.

The advantages are that: when the linkage lock is in a closed state, the elastic piece is prone to the convex key to be clamped into the first key groove, so that the false unlocking phenomenon caused by the rotation of the mandrel relative to the limiting shell under the action of external force can be prevented; when the linkage lock is in an open state, the mandrel can drive the convex key to move out of the first key groove after overcoming the elasticity of the elastic piece, so that the mandrel is allowed to rotate in the limiting shell.

In an embodiment, a rotation groove 1052 extending along a circumferential direction is disposed on an inner wall of the limiting housing at one side of the first key groove, and the first key groove is in a communicating state with the rotation groove.

The advantages are that: through the stop cooperation of protruding key and rotary groove both ends, the rotation stroke of limiting the dabber, avoid parts damage phenomena such as spring bolt, actuating lever that excessively rotate the dabber and lead to.

In one embodiment, the first keyway 1051 is located above the head end of the rotary slot 1052.

The advantages are that: when the lock point I needs to be unlocked, the convex key which is moved out of the first key groove can smoothly enter the rotary groove; when the lock point I needs to be locked, the convex key can be smoothly clamped into the first key groove under the elastic action of the elastic piece after returning to the head end of the rotary groove, so that the smooth switching of the mandrel in the rotation-stopping matching state and the rotation state is realized.

In one embodiment, the inner wall of the limiting housing is provided with a second keyway 1053 extending along the axial direction, and after the linkage lock is opened in place, the protruding key is clamped into the second keyway to form a rotation-stopping fit.

The advantages are that: after the linkage lock is opened in place, the convex key is clamped into the second key groove under the action of the elastic force of the elastic piece, so that the linkage lock is kept at the unlocking position, and the phenomenon of false collision caused by the fact that the lock tongue stretches out of the door plate can be avoided when the door plate is in a long-time detaching state.

In an embodiment, a rotation groove 1052 extending along a circumferential direction is disposed on an inner wall of the limiting housing at one side of the first key groove, and the first key groove and the second key groove are both in a communication state with the rotation groove.

In one embodiment, the first keyway 1051 is located above the head end of the rotary slot 1052 and the second keyway 1053 is located above the distal end of the rotary slot 1052.

The advantages are that: after the convex key moves to the two ends of the rotary groove, the convex key can be smoothly clamped into the first key groove or the second key groove under the elastic action of the elastic piece, so that the smooth switching of the mandrel in the rotation-stopping matching state and the rotation state is realized.

In an embodiment, the inner wall of the limit housing is provided with a plurality of first keyways 1051 and a plurality of second keyways 1053 along the circumferential direction, and the first keyways and the second keyways are staggered in the circumferential direction; the outer wall of the mandrel is provided with a plurality of convex keys with the same number as the first key grooves.

The advantages are that: through the cooperation of a plurality of protruding keys and a plurality of first keyway or second keyway, the stability of interlock lock when closing the state is further improved.

In an embodiment, a stop 1054 is disposed on an inner wall of the limiting housing at the other side of the first key slot, when the linkage lock is in a closed state, the protruding key is clamped into the first key slot to form a rotation-stopping fit, and the protruding key and the stop form a stop fit in an axial direction.

The advantages are that: the baffle table not only realizes the assembly of the mandrel in the limiting shell, but also can avoid the phenomenon that the convex key is separated from the first key groove under the elastic action of the elastic piece.

In an embodiment, a first boss 1022 is disposed on an outer wall of the mandrel, the protruding key 1021 is disposed on an outer wall of the first boss, when the mandrel is installed into the limiting shell from the opening on one side of the limiting shell, the protruding key is clamped into the first key slot, and the elastic member is clamped between the first boss and a retainer 1055 installed at the bottom of the limiting shell.

The advantages are that: by means of the first boss, the assembly of the mandrel and the elastic piece in the limiting shell can be completed rapidly.

In one embodiment, a second stop 10551 is provided on the inner wall of the collar 1055, and a bellows spring 106 as an elastic member is sandwiched between the first and second stops and surrounds the mandrel 102.

The advantages are that: the second stop is convenient for accurate positioning of the ripple spring, and the ripple spring is distributed around the mandrel, so that enough elastic force can be provided to enable the convex key to have a tendency to be clamped into the first key groove.

In one embodiment, a first sealing ring 1056 is arranged on the surface of the limiting shell away from the driving rod; a second boss 1023 is arranged on the outer wall of the mandrel at the other side of the convex key, and a second sealing ring 1024 is clamped between the baffle 1054 and the second boss 1023.

In one embodiment, a seal groove 10231 for mounting the second seal ring is provided on one of the inner wall of the baffle 1054 and the outer wall of the second boss 1023.

The advantages are that: the invention adopts the second sealing ring to seal the annular gap between the second boss and the baffle table, and the first sealing ring and the second sealing ring are used for carrying out excellent dustproof effect and waterproof effect.

In an embodiment, a groove 1034 for placing the end of the limiting shell is formed on the driving rod at the lock point I, two sides of the groove distributed along the width direction of the driving rod are opened, and two inner walls distributed along the length direction of the driving rod are arc-shaped consistent with the radian of the outer wall of the limiting shell.

The advantages are that: when the limiting shell is arranged on the bracket, the lower end of the limiting shell is placed in the groove, and when the locking point I is at the locking position, the active driving rod 103 is further prevented from shaking by the blocking effect of the limiting shell; when the lock point I is in the unlocking position, the driving rod rotates around the mandrel more smoothly through the guiding function of the outer wall of the limiting shell.

In one embodiment, the lock point i is further provided with a bracket i 104, and at least two bosses i 1042 are provided on the bracket i; the limiting piece is provided with two lugs 1057 which are symmetrically distributed, and the limiting piece is installed on the bracket I through the cooperation of the boss I and the lifting lug.

The advantages are that: according to the invention, the support is used as a carrier, the limiting piece is suspended on the support I by means of the cooperation of the boss and the lifting lug, so that the structural strength of the door plate can be prevented from being damaged as much as possible, and meanwhile, a gap between the limiting piece and the surface of the support provides a space for assembling the driving rod at the lock point I.

In one embodiment, the end of the mandrel inserted into the through hole on the door panel protrudes from the door panel, and the end of the mandrel 102 is provided with a force application portion for matching with the force application member.

The advantages are that: the efficiency of opening and closing the linkage lock is further improved through the cooperation of the force application part and the force application part.

In an embodiment, a connecting shaft 1025 is disposed at the other end of the mandrel 102, and a first connecting hole 1031 for plugging with the connecting shaft is disposed on the driving rod at the lock point i.

The advantages are that: the driving rod at the lock point I can be limited to shake when the linkage lock is in a closed state through the plug-in matching of the connecting shaft and the first connecting hole; when the linkage lock is in an open state, the mandrel in a rotating state can synchronously drive the driving rod at the lock point I to rotate.

In one embodiment, the axis of the connecting shaft 1025 coincides with the axis of the mandrel 102, and the cross section of the connecting shaft inserted into the first connecting hole is non-circular.

In one embodiment, the axis of the connecting shaft 1025 coincides with the axis of the mandrel 102, and the section of the connecting shaft inserted into the first connecting hole is circular; the other end of the mandrel 102 is also provided with an eccentric connecting shaft 1026 with an axis parallel to the axis of the mandrel, and a driving rod at the lock point I is provided with a second connecting hole 1032 for being in plug-in fit with the eccentric connecting shaft when the linkage lock is opened.

The advantages are that: when the linkage lock is opened, the mandrel overcomes the elasticity of the elastic piece and moves along the axial direction, the eccentric connecting shaft is driven to move and is inserted into the corresponding second connecting hole, and then the driving rod at the lock point I is driven to synchronously rotate around the axis of the mandrel through the eccentric connecting shaft when the mandrel rotates.

In one embodiment, the transmission mechanism is a transmission rod, and two ends of the transmission rod are respectively hinged with the end part of the driving rod and the end part of the lock tongue.

The advantages are that: when the linkage lock needs to be opened, the driving rod in a rotating state can drive the lock tongue to retract in the opposite direction of the first direction through the action of the first transmission rod, and then the lock tongue is separated from the lock part on the mouth frame.

In an embodiment, the lock point ii is further provided with a bracket ii 203, and a second elastic member for providing an elastic force to make the lock tongue at the lock point ii tend to extend out of the door panel is disposed between the bracket ii and the driving rod at the lock point ii.

The advantages are that: with the help of the elastic force that the second elastic piece provided, when the linkage lock is in the closed state, on the one hand, make the spring bolt of lock point II department have the trend of stretching out in the door plant, on the other hand can avoid the actuating lever of lock point II department to appear rocking the phenomenon.

In an embodiment, a rotating shaft 2033 with an axis parallel to the axis of the mandrel is disposed on the support ii, the rotating shaft passes through the driving rod at the lock point ii, and the second elastic member surrounds the rotating shaft and has two ends respectively connected with the support ii and the driving rod at the lock point ii.

The advantages are that: when the linkage lock is opened, the driving rod at the lock point II can rotate around the rotating shaft, so that the rotation process of the driving rod is stable, and the rotation processes of the driving rod at the lock point I and the driving rod at the lock point II can be synchronous as much as possible because the axis of the rotating shaft is parallel to the axis of the mandrel.

In one embodiment, the driving rod at the lock point ii is provided with a convex shell 2022 with a hollow interior, the end of the rotating shaft 2033 is provided with a limit nut 2034 after passing through the convex shell along the axial direction, and the torsion spring 2035 is located in the convex shell and two ends of the torsion spring 2035 are respectively connected with the convex shell and the bracket ii.

The advantages are that: by means of the convex shell, the quick assembly of the rotating shaft and the torsion spring is realized, and the torsion spring is ensured to have enough elastic force.

In order to achieve the purpose, the invention also adopts the following technical scheme: the equipment comprises a door plate and a mouth frame, wherein the linkage lock is arranged on the door plate and the mouth frame, and when the linkage lock is in a closed state, the door plate is sealed on the mouth frame; when the linkage lock is in an open state, the door plate can be opened from the mouth frame.

The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention given in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a schematic perspective view of a interlock lock according to the present embodiment.

Fig. 2A is a schematic perspective view of the lock point i in the locked position in this embodiment.

Fig. 2B is a schematic perspective view of the lock point i in the unlock position in this embodiment.

Fig. 3 is an assembly schematic diagram of the mandrel, the limiting shell and the corrugated spring at the lock point I.

Fig. 4 is a schematic perspective view of the spindle at lock point i.

Fig. 5A is a schematic perspective view of the limiting housing at lock point i.

Fig. 5B is a schematic cross-sectional view of the limit housing at lock point i.

Fig. 6 is a schematic perspective view of the active drive rod at lock point i.

Fig. 7A is a schematic perspective view of the lock point ii in the locked position in this embodiment.

Fig. 7B is a schematic perspective view of the lock point ii in the unlock position in this embodiment.

Fig. 8 is an assembly schematic diagram of the driven driving rod, the rotating shaft and the torsion spring at the lock point II.

Fig. 9 is a schematic perspective view of the driven drive rod at lock point ii.

Detailed Description

Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. The features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments, and further the terms "first or i", "second or ii", "third or iii", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the invention. In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

Referring to fig. 1, an embodiment of a linkage lock according to the present invention is shown. In this embodiment, the linkage lock includes a lock point i 10 located at the leftmost side, two remaining lock points ii 20, and a connecting rod 30 connecting the lock points i and ii, which is of course not limited in the location and number N of lock points, and when there are a plurality of lock points, only one of the lock points most beneficial to the operation of a human hand needs to be defined as lock point i, and the remaining (N-1) lock points are defined as lock point ii.

Referring to fig. 2A and fig. 2B, the lock point i is provided with a driving lock tongue 101, which can extend out of the door panel along a first direction to reach a locking position, and can retract back into the door panel along a direction opposite to the first direction to reach an unlocking position; the limiting piece is used for connecting the door plate; one end of the mandrel 102 is inserted into the through hole on the door plate, and the other end of the mandrel is used for connecting the driving rod 103; one end of the driving rod 103 is connected with the driving spring bolt 101 through a transmission mechanism, and the other end of the driving rod is hinged with the connecting rod 30; and two ends of the elastic piece are respectively connected with the limiting piece and the mandrel. With the above structure, the lock point i has: the locking position (at this time, the linkage lock is in a closed state), the mandrel 102 and the limiting piece form a rotation-stopping fit under the elastic force provided by the elastic piece, and the active lock tongue 101 extends out of the door plate along the first direction and is connected with the lock part on the mouth frame (for example, the lock part on the mouth frame is a lock groove, and the active lock tongue is inserted into the lock groove to realize locking); the unlocking position (when the linkage lock is in an unlocking state), the mandrel 102 moves along the axial direction against the elastic force of the elastic piece, so that the mandrel and the limiting piece are in anti-rotation fit, then the mandrel 102 rotates to drive the active driving rod 103 to synchronously rotate, and the active driving rod drives the active lock tongue 101 to retract in the opposite direction of the first direction to the door plate under the action of the transmission mechanism and then separate from the locking part on the mouth frame (for example, the active lock tongue is pulled out from the locking groove to realize unlocking).

In this embodiment, lock point I department still is equipped with support I104, and the support is used for installing on the door plant of equipment, is used as the installation carrier of the other parts of constituteing the linkage lock, and this embodiment regard support I as the carrier, can not destroy the structural strength of door plant as far as possible to guarantee the sealed effect of door plant. The support I104 is kept away from one side of connecting rod 30 and is equipped with guide holder I1041, and the inside of guide holder I adopts the cavity design along first direction, with aforesaid initiative spring bolt 101 sliding assembly in guide holder I, and when the dabber rotated, under the direction of guide holder I, initiative spring bolt stretched out in the door plant or was retrieved in the door plant along first direction steadily.

Referring to fig. 3, 5A and 5B, in the present embodiment, the limiting member is a limiting housing 105 hollow along an axial direction.

The inner wall of the limiting housing 105 is circumferentially provided with a plurality of first keyways 1051 (for example, four first keyways are circumferentially provided in this embodiment), the first keyways extend along the axial direction of the limiting housing, referring to fig. 4, the outer wall of the spindle is circumferentially provided with a plurality of protruding keys 1021 at intervals, when the lock point i is in the locked position, each protruding key 1021 is limited in the corresponding first keyways 1051 to form a rotation-stopping fit, so as to prevent the spindle from rotating relative to the limiting housing under the action of external force to cause misunlocking, when the lock point i is in the unlocked position, the spindle can overcome the elasticity of the elastic member and axially move to drive the protruding keys 1021 to move out of the corresponding first keyways 1051 to release the rotation-stopping fit, and at this time, the spindle is allowed to rotate in the limiting housing; further, the spacing shells inner wall that is located first keyway downside sets up a plurality of rotary slots 1052 along circumference interval, this rotary slots 1052 extend along the circumference of spacing shells, and be the intercommunication state with corresponding first keyway 1051, when lock point I is in the unblock position, the dabber moves along the axial, the protruding key shifts out in the first keyway in the back get into corresponding rotary slots, allow protruding key to rotate in the rotary slots this moment, the cooperation is stopped through protruding key and rotary slots both ends portion, the rotation stroke of dabber is limited, avoid excessively rotating the phenomenon that parts such as initiative spring bolt, initiative actuating lever that the dabber leads to damage, the best: the first key groove 1051 is located above the head end of the rotary groove 1052 (i.e. one inner wall of the first key groove distributed along the circumferential direction is in a level state with the inner wall of the head end of the rotary groove), when the lock point I needs to be unlocked, a convex key moving out of the first key groove can smoothly enter the rotary groove, when the lock point I needs to be locked, the convex key returns to the head end of the rotary groove and then can be smoothly clamped into the first key groove under the elastic action of an elastic piece, so that the smooth switching of the spindle in a rotation-stopping matching state and a rotation state is realized; furthermore, the inner wall of the limit housing 105 is further provided with a plurality of second keyways 1053 at intervals along the circumferential direction (for example, four second keyways are provided along the circumferential direction in this embodiment), the second keyways 1053 are optimally located above the ends of the corresponding rotating slots 1052 (that is, one inner wall of the second keyways distributed along the circumferential direction is in a flush state with the inner wall of the ends of the rotating slots), so that the first keyways and the second keyways are distributed in a staggered manner along the circumferential direction, when the lock point i is unlocked, the convex key moving out of the first keyways rotates to the ends of the convex key along the rotating slots, at this time, the linkage lock is in an opened state, and under the elastic action of the elastic element, the convex key can be smoothly clamped into the second keyways, so that the lock point i is kept in an unlocking position, and then the false collision phenomenon caused by the active lock tongue extending out of the door body can be avoided when the door plate is in a long-time detached state. In addition, be located spacing shells inner wall of first keyway upside and set up fender platform 1054, the elastic component provides elasticity to make protruding key 1021 can get into in the first keyway 1051 realize the cooperation of stopping of dabber and spacing shell, and get into protruding key top surface and fender platform bottom surface in the first keyway and form the cooperation of stopping in the axial, not only realized the assembly of dabber in the casing, can avoid the phenomenon that protruding key deviate from in the first keyway under the elastic component's effect moreover.

Referring to fig. 4, in this embodiment, a first boss 1022 is disposed on an outer wall of the mandrel 102, the protruding keys 1021 are circumferentially disposed on an outer wall of the first boss extending circumferentially at intervals, when the mandrel is installed into the inside of the limiting housing from an opening at the lower side of the limiting housing, the protruding keys 1021 are clamped into corresponding first keyways 1051, meanwhile, a retainer ring 1055 is installed at the bottom of the limiting housing 105, a corrugated spring 106 as an elastic member is located inside the limiting housing 105 and is clamped between the first boss 1022 and the retainer ring 1055, and the corrugated spring tends to have protruding keys limited in the first keyways; further, a second stop 10551 is provided inside the collar 1055, and the bellows spring 106 is sandwiched between the first and second stops and surrounds the mandrel 102 during assembly, the second stop facilitating accurate positioning of the bellows spring.

In this embodiment, the top surface of the limiting housing 105 is provided with a first sealing ring 1056, and when the bracket i at the lock point i is mounted on the door panel, the first sealing ring is attached to the back surface of the door panel, so as to realize the sealing between the top surface of the limiting housing and the back surface of the door panel; the second boss 1023 is arranged on the outer wall of the mandrel 102 positioned on the upper side of the convex key, the outer wall of the second boss extends radially to form a sealing groove 10231, when the mandrel is installed in the limiting shell from the opening on the lower side of the limiting shell, the second boss 1023 passes through the baffle 1054 from the inside, the second sealing ring 1024 installed in the sealing groove 10231 contacts the inner wall surface of the baffle 1054, and the annular gap between the second boss and the baffle is blocked.

In this embodiment, two lugs 1057 symmetrically distributed are disposed on the outer wall of the limiting housing 105, at least two bosses i 1042 are disposed on the bracket i 104 (for example, four bosses distributed in rectangular form are disposed on the upper surface of the bracket in this embodiment), the bracket is firmly mounted on the door panel through the cooperation of the bosses and the bolts, and meanwhile, the limiting housing is mounted on the bracket through the cooperation of the lugs and the two bosses i located on two sides of the driving rod, and a space is provided for the assembly of the driving rod by the gap existing between the bottom of the limiting housing and the upper surface of the bracket.

Referring to fig. 4, in the embodiment, a connecting shaft 1025 and an eccentric connecting shaft 1026 are disposed at the lower end of the mandrel 102, and the axis of the connecting shaft coincides with the axis of the mandrel, referring to fig. 3, when the mandrel is installed in the limiting housing, the connecting shaft 1025 protrudes out of the limiting housing 105, and the lower end of the connecting shaft with a circular cross section is inserted into a first connecting hole 1031 disposed in the middle of the driving rod 103, and through the plug-in cooperation of the connecting shaft and the first connecting hole, the driving rod 103 is prevented from shaking when the lock point i is in the locking position, and the driving rod 103 is rotated around the axis of the mandrel when the lock point i is in the unlocking position; when the lock point I is at the unlocking position, the mandrel 102 moves along the axial direction against the elasticity of the corrugated spring 106, the eccentric connecting shaft 1026 is driven to approach the driving rod 103, the lower end of the eccentric connecting shaft is inserted into the corresponding second connecting hole 1032 on the driving rod 103, and then the mandrel rotates, and the driving rod 103 is driven to synchronously rotate around the axis of the mandrel through the eccentric connecting shaft. Further, in order to ensure the driving effect of the eccentric connecting shaft, the outer wall of the eccentric connecting shaft deviating from the connecting shaft adopts a flat cutting design.

Referring to fig. 3 and 4, in this embodiment, when the mandrel is installed into the interior of the limiting housing from the opening at the lower side of the limiting housing, the upper end of the mandrel protruding from the limiting housing is inserted into the through hole on the door panel to serve as the force application end, the upper end of the mandrel is provided with a force application portion for matching with the force application member, and in this embodiment, the force application portion is a hexagonal groove structure 1027, however, in other embodiments of the present invention, the force application portion may have other structures, for example: polygonal raised head structure. Further, the upper end of the mandrel protrudes out of the door plate, so that the force application part is convenient to match with the electric tool.

In this embodiment, the transmission mechanism includes a first transmission rod 107, two ends of the first transmission rod 107 are respectively hinged with one end of the driving rod 103 and one end of the driving bolt 101 through the cooperation of a pin shaft and a bolt, when the lock point i is at a locking position, the spindle and the limiting shell form a rotation stopping cooperation, at this time, the axes of the driving rod, the first transmission rod and the driving bolt are located on a straight line, the axes of the driven driving rod, the second transmission rod and the driven bolt at the lock point ii are also located on a straight line, that is, no matter the lock point i or the lock point ii, the axes of the driving rod, the transmission rod and the bolt coincide in the same direction when the lock position is reached, and when the front end of the bolt is subjected to external forces in various directions, under the action of the corresponding guide seat, the external forces transmitted by the bolt are always along the directions of the axes of the three parts (that is the opposite directions shown in fig. 2B and 7B), so that the external forces received by the bolt are finally decomposed on the bracket, the bolt is not easy to retreat in the opposite directions, and the locking state is more stable; when the lock point I needs to be unlocked, the mandrel overcomes the elasticity of the corrugated spring and moves along the axial direction, then the mandrel drives the active driving rod to rotate synchronously, and the active lock tongue is driven to retract in the door plate along the opposite direction of the first direction through the action of the first transmission rod, so that the axes of the active driving rod, the first transmission rod and the active lock tongue are not in the same straight line.

Referring to fig. 6, in the present embodiment, a first connection hole 1031 located in the middle and a second connection hole 1032 located at one side of the first connection hole are provided on the active driving rod 103, the first connection hole 1031 is used for being in plug-in fit with the connection shaft 1025, and the second connection hole 1032 is used for being in plug-in fit with the eccentric connection shaft 1026 when the lock point i is in the unlock position; the two ends of the driving rod 103 are also provided with third connecting holes 1033, wherein one third connecting hole is hinged with the connecting rod 30 through the cooperation of a pin shaft and a bolt, and the other third connecting hole is hinged with the first transmission rod 107 through the cooperation of the pin shaft and the bolt. Further, a groove 1034 is arranged on the active driving rod 103 between the two third connecting holes, two sides of the groove distributed along the width direction of the active driving rod are opened, two inner walls of the groove distributed along the length direction of the active driving rod are arc-shaped consistent with the radian of the outer wall of the limit shell, when the limit shell is arranged on the bracket, the lower end of the limit shell is placed in the groove, and when the lock point I is at the locking position, the active driving rod 103 is further prevented from shaking through the blocking effect of the limit shell; when the lock point I is in the unlocking position, the driving rod rotates around the mandrel more smoothly through the guiding function of the outer wall of the limiting shell.

Referring to fig. 7A and fig. 7B, the lock point ii is provided with a driven lock tongue 201, which can extend out of the door panel along the first direction to reach the locking position, and can retract back into the door panel along the opposite direction of the first direction to reach the unlocking position; the driven driving lever 202 has one end connected to the driven tongue 201 via a transmission mechanism and the other end hinged to the link 30. By virtue of the structure, the lock point II is provided with: the locking position (at this time, the linkage lock is in a closed state), and the driven lock tongue 201 extends out of the door plate along the first direction and is connected with the lock part on the mouth frame; in the unlocking position (when the linkage lock is in the unlocking state), the mandrel 102 moves along the axial direction against the elastic force of the elastic piece, so that the mandrel and the limiting piece are in anti-rotation fit, the mandrel 102 rotates to drive the driving rod 103 to rotate, the driving rod 103 synchronously drives the driven driving rod 202 to rotate through the connecting rod 30, and the driven driving rod drives the driven lock tongue 201 to retract in the opposite direction of the first direction along the door plate and then is separated from the locking part on the mouth frame under the action of the transmission mechanism.

In this embodiment, the lock point ii is also provided with a bracket ii 203, and the structure of the bracket ii 203 is the same as that of the bracket i 104 at the lock point i, and both the bracket ii 203 are provided with a guide seat ii 2031 and a protruding seat ii 2032; the transmission mechanism comprises a second transmission rod 204, the structure of the second transmission rod 204 is the same as that of the first transmission rod 107, and two ends of the second transmission rod 204 are respectively hinged with one end of the driven driving rod 202 and the end of the driven lock tongue 201 through the cooperation of a pin shaft and a bolt.

Referring to fig. 9, compared to the driving rod 103, in this embodiment, the driven driving rod 202 only has two fourth connecting holes 2021 reserved at two ends, wherein one fourth connecting hole is hinged to the connecting rod 30 through the pin and bolt cooperation, and the other fourth connecting hole is hinged to the second driving rod 204 through the pin and bolt cooperation. Further, please refer to fig. 8 and 9 simultaneously, this embodiment sets up an inside hollow convex shell 2022 in the middle part of driven driving rod 202, set up a rotating shaft 2033 on support ii, this pivot is along its axial behind the convex shell its tip installation spacer nut 2034 (of course also can be other types of locating part, such as spacer pin), set up the torsional spring 2035 (of course also can be other types of elastic component) that surrounds the pivot distribution in the aforesaid convex shell, and the both ends of torsional spring 2035 are connected with convex shell 2022, support ii 203 respectively, when driving rod 103 rotates, under the transmission of connecting rod, driven driving rod 202 revolutes the rotation of rotating shaft 2033, can make driven driving rod's rotation process more steady, simultaneously because the axis of this pivot 2033 is parallel state with the axis of lock point department dabber 102, still can make driving rod, the rotation process of driven driving rod as far as possible synchronous as possible, when lock point ii is in the lock position, on the one hand, make the spring tongue have the elasticity that stretches out in the door plant, on the other hand can take into account, the torsional spring trend when the driven driving rod is in the lock point ii is in the same time, when taking into account the lock point is in the motion of the moment, when the same time, the driven rod is out of the motion trend, can be broken, when the driven rod is in the same time, when the support is in the moment has the moment of force of external force, and is in the second, and is in the same time, when the motion of the moment is in the moment, and when the driven point is in the moment when the moment is out of the external force. Still further still be equipped with mounting groove 2036 on the support II that is located the boss 2022 below, this mounting groove constitutes the cavity that is used for installing pivot 2033 and encircles the torsional spring 2035 that the pivot distributes with the boss jointly to the top of boss is equipped with first spacing hole 20221, and the bottom of mounting groove is equipped with the spacing hole of second, and in the spacing hole of first was arranged in to the upper end of torsional spring 2035, its lower extreme was arranged in the spacing hole of second, with the help of the aforesaid design, realized the quick assembly of pivot and torsional spring, and guaranteed that the torsional spring has sufficient elastic force.

With the help of the lock point i and the lock point ii of the foregoing structure, this embodiment of a linkage lock has: in a closed state, under the action of elasticity provided by the corrugated spring, the mandrel 102 at the lock point I and the limit housing 105 form a rotation-stopping fit, and the driving lock tongue 101 at the lock point I and the driven lock tongue 201 at the lock point II extend out of the door plate along the first direction and are connected with a lock part on the mouth frame; in the open state, the mandrel 102 at the lock point I overcomes the elasticity of the ripple spring to move along the axial direction, drives the convex key 1021 to move out of the first key groove 1051 to release the rotation-stopping fit, then the mandrel 102 rotates to drive the driving rod 103 to synchronously rotate, the driving rod 103 drives the driving spring bolt 101 to retract in the opposite direction of the first direction to the door plate through the first transmission rod 107 and then to be separated from the lock part on the mouth frame, and meanwhile, the driving rod 103 at the lock point I drives the driven driving rod 202 at the lock point II to synchronously rotate through the connecting rod 30, and the driven driving rod 202 drives the driven spring bolt 201 to retract in the opposite direction of the first direction to be separated from the lock part on the mouth frame after being retracted in the opposite direction of the first direction through the second transmission rod 204.

In other embodiments of the present invention, a first protruding key and a second protruding key may be provided on an inner wall of the limit housing, a key groove may be provided on an outer wall of the spindle, the key groove extends along an axial direction of the spindle, the spindle and the limit housing form a rotation-stopping fit through cooperation of the first protruding key and the key groove, and when the spindle moves along the axial direction, the key groove and the first protruding key may be separated, thereby allowing the spindle to rotate.

In other embodiments of the present invention, the first boss disposed on the outer wall of the mandrel may be omitted, at this time, a plurality of protruding keys are disposed on the outer wall of the mandrel at intervals along the circumferential direction, each protruding key extends along the radial direction of the mandrel to form a long strip shape, the end of each protruding key is used to be limited in the first key slot or the second key slot, and the corrugated spring as the elastic member is sandwiched between a portion of the protruding key close to the mandrel and the second blocking table of the retaining ring.

In other embodiments of the present invention, the sealing groove provided on the second boss may be omitted, and at this time, the sealing groove needs to be formed by extending radially from the inner wall of the baffle table, the second sealing ring is installed in the sealing groove, and the second boss passes through the inner portion of the baffle table, and then contacts with the outer wall surface of the second boss, so as to seal the annular gap between the second boss and the baffle table.

In other embodiments of the present invention, the second boss provided on the outer wall of the mandrel may be omitted, and at this time, after the mandrel passes through the inside of the stopper, a cylindrical sealing plug needs to be installed between the outer wall of the mandrel and the inner wall of the stopper to replace the second sealing ring, so as to seal the annular gap between the second boss and the stopper.

In other embodiments of the present invention, the eccentric connecting shaft provided at the lower end of the spindle and the second connecting hole provided on the driving rod may be omitted, and the lower end of the connecting shaft inserted into the first connecting hole needs to be provided in a non-circular shape, for example: rectangular, triangular, semicircular and elliptical so as to transmit torque to the driving rod when the connecting shaft rotates; or in which case the axis of the connecting shaft needs to be arranged out of line with (i.e. not coincident with) the axis of the spindle, in which case the connecting shaft is in fact an eccentric connecting shaft.

In other embodiments of the present invention, the first transmission rod and the second transmission rod may be omitted, where the transmission mechanism includes a chute disposed at an end of the driving rod and extending along a length direction of the driving rod, and an end of the locking bolt is mounted in the chute through a limiting pin.

In other embodiments of the present invention, on the premise that the thickness of the bracket ii is sufficient, the convex shell disposed on the driven driving rod may be omitted, at this time, a through hole needs to be disposed in the middle of the driven driving rod, the upper end of the rotating shaft passes through the through hole and then is equipped with the limiting member, and two ends of the torsion spring are respectively connected with the bottom of the driven driving rod and the bottom of the mounting groove. Further, the rotating shaft arranged on the bracket II can be omitted, and an elastic piece is directly arranged between the bracket II and the driven driving rod, for example: an elastic piece is arranged between the convex seat II and the side wall of the driven driving rod.

On the basis of the linkage lock, the invention also provides equipment which comprises a door plate and a mouth frame, wherein the linkage lock of any embodiment is arranged on the door plate and the mouth frame, and when the linkage lock is in a closed state, the door plate is sealed on the mouth frame; when the linkage lock is in an open state, the door plate can be opened from the mouth frame.

The above description is only of the preferred embodiments of the present invention, and any simple modification, equivalent variation and modification of the above embodiments according to the technical principles of the present invention will still fall within the scope of the technical solutions of the present invention.

Claims (27)

1. The linkage lock is characterized by comprising a plurality of lock points, wherein each lock point is provided with a lock tongue and a driving rod, one end of the driving rod is connected with the lock tongue through a transmission mechanism, and the other end of the driving rod is hinged with a connecting rod (30);

one of the lock points is a lock point I (10), and the rest is a lock point II (20);

a mandrel (102) is further arranged at the lock point I, one end of the mandrel is inserted into the through hole on the door plate, and the other end of the mandrel is connected with a corresponding driving rod; the limiting piece is used for connecting the door plate; the two ends of the elastic piece are respectively connected with the limiting piece and the mandrel;

the interlock lock has: in a closing state, under the action of the elasticity of the elastic piece, the mandrel and the limiting piece form a rotation-stopping fit, and the lock tongue extends out of the door plate along the first direction and is connected with the lock part on the mouth frame; in the opening state, the mandrel overcomes the elasticity of the elastic piece and moves along the axial direction, so that the mandrel and the limiting piece are in anti-rotation fit, the mandrel rotates to drive the driving rod at the lock point I to rotate, the driving rod at the lock point I drives the driving rod at the lock point II to rotate through the connecting rod, and the driving rod drives the lock tongue to retract in the opposite direction of the first direction through the transmission mechanism and then to be separated from the lock part on the door plate and the mouth frame.

2. The lock of claim 1, wherein the lock point is further provided with a bracket for connecting to the door panel, and the bracket is provided with a guide seat for forming a sliding fit with the lock tongue so that the lock tongue extends out of the door panel in the first direction or is retracted back into the door panel in the opposite direction of the first direction.

3. The interlocking lock of claim 1, wherein the spindle is rotationally engaged with the retainer by a male key and keyway engagement.

4. The linkage lock according to claim 1, wherein the limiting member is a limiting housing (105) hollow along an axial direction, a first key groove (1051) extending along the axial direction is formed in the inner wall of the limiting housing, a convex key (1021) is formed on the outer wall of the mandrel, and when the linkage lock is in a closed state, the convex key is clamped into the first key groove to form a rotation-stopping fit; when the linkage lock is in an open state, the mandrel overcomes the elastic force of the elastic piece and moves along the axial direction, and the convex key is driven to move out of the first key groove so as to release the rotation stopping fit.

5. The interlock lock of claim 4 wherein the inner wall of the retainer housing on one side of the first keyway is provided with a circumferentially extending rotary slot (1052), said first keyway being in communication with the rotary slot.

6. The ganged lock of claim 5, characterized in that the first keyway (1051) is located above the head end of the rotary slot (1052).

7. The interlock lock of claim 4 wherein the inner wall of the limit housing defines a second axially extending keyway (1053) and wherein the male key snaps into the second keyway to form a detent engagement after the interlock lock is opened in place.

8. The interlocking lock according to claim 7, wherein a rotation groove (1052) extending in a circumferential direction is provided in an inner wall of the limit housing on one side of the first key groove, and the first key groove and the second key groove are both in communication with the rotation groove.

9. The ganged lock of claim 8, characterized in that the first keyway (1051) is located above the head end of the rotary slot (1052) and the second keyway (1053) is located above the end of the rotary slot (1052).

10. The linkage lock according to claim 7, characterized in that the inner wall of the limit housing is provided with a plurality of first keyways (1051) and a plurality of second keyways (1053) along the circumferential direction, and the first keyways and the second keyways are distributed in a staggered manner along the circumferential direction; the outer wall of the mandrel is provided with a plurality of convex keys with the same number as the first key grooves.

11. The interlock lock of claim 4 wherein a stop (1054) is provided on the inner wall of the housing on the opposite side of the first keyway, the cam engages the first keyway to form a detent engagement when the interlock lock is in the closed condition, and the cam and stop form a detent engagement in the axial direction.

12. The interlocking lock according to claim 4, wherein a first boss (1022) is provided on an outer wall of the spindle, the protruding key (1021) is provided on the outer wall of the first boss, and when the spindle is fitted into the inside of the limit housing from the opening on one side of the limit housing, the protruding key is engaged into the first key groove, and the elastic member is interposed between the first boss and a retainer ring (1055) installed at the bottom of the limit housing.

13. A lock according to claim 12, characterized in that the inner wall of the collar (1055) is provided with a second abutment (10551), and that a bellows spring (106) as an elastic element is sandwiched between the first and second abutment and surrounds the spindle (102).

14. The linkage lock according to claim 11, characterized in that the surface of the limit housing facing away from the drive rod is provided with a first sealing ring (1056); a second boss (1023) is arranged on the outer wall of the mandrel at the other side of the convex key, and a second sealing ring (1024) is clamped between the baffle (1054) and the second boss (1023).

15. The interlock lock of claim 14 wherein one of an inner wall of the stop (1054) and an outer wall of the second boss (1023) is provided with a seal groove (10231) for mounting the second seal ring.

16. The lock according to claim 4, wherein the driving rod at the lock point i is provided with a groove (1034) for placing the end of the limit housing, the two sides of the groove distributed along the width direction of the driving rod are opened, and the two inner walls distributed along the length direction of the driving rod are arc-shaped consistent with the radian of the outer wall of the limit housing.

17. The linkage lock according to claim 1, characterized in that the lock point i is further provided with a bracket i (104) for connecting with a door panel, and the bracket i is provided with at least two bosses i (1042); the limiting piece is provided with two lugs (1057) which are symmetrically distributed, and the limiting piece is arranged on the bracket I through the cooperation of the boss I and the lifting lug.

18. A lock according to claim 1, characterized in that the end of the spindle inserted into the through hole in the door panel protrudes from the door panel, and the end of the spindle (102) is provided with a force application portion for cooperation with the force application member.

19. The linkage lock according to claim 1, characterized in that the other end of the spindle (102) is provided with a connecting shaft (1025), and the driving rod at the lock point i is provided with a first connecting hole (1031) for being in plug-in fit with the connecting shaft.

20. A lock according to claim 19, wherein the axis of the connecting shaft (1025) coincides with the axis of the spindle (102), and the cross section of the connecting shaft inserted into the first connecting hole is arranged in a non-circular shape.

21. The interlocking lock according to claim 19, characterized in that the axis of said connecting shaft (1025) coincides with the axis of the spindle (102), the cross section of the connecting shaft inserted into the first connecting hole being arranged in a circular shape; the other end of the mandrel (102) is also provided with an eccentric connecting shaft (1026) with an axis parallel to the axis of the mandrel, and a driving rod at the lock point I is provided with a second connecting hole (1032) for being in plug-in fit with the eccentric connecting shaft when the linkage lock is opened.

22. The linkage lock according to claim 1, wherein the transmission mechanism is a transmission rod, and two ends of the transmission rod are respectively hinged with the end part of the driving rod and the end part of the lock tongue.

23. The interlocking lock of claim 1 wherein said lock point ii is further provided with a second spring for providing a spring force to bias the locking tongue at lock point ii to extend beyond the door panel.

24. The interlocking lock according to claim 23, wherein a bracket ii (203) for connecting to the door panel is provided at the lock point ii, and a second elastic member for providing an elastic force to make the lock tongue at the lock point ii tend to protrude from the door panel is provided between the bracket ii and the driving lever at the lock point ii.

25. The lock according to claim 24, wherein a shaft (2033) having an axis parallel to the axis of the spindle is provided on the bracket ii, the shaft passes through the driving rod at the lock point ii, and the second elastic member surrounds the shaft and has both ends connected to the bracket ii and the driving rod at the lock point ii, respectively.

26. The interlocking lock according to claim 25, wherein the driving rod at the lock point ii is provided with a convex shell (2022) having a hollow interior, the end of the rotating shaft (2033) is provided with a limit nut (2034) after passing through the convex shell along the axial direction thereof, and a torsion spring (2035) as a second elastic member is disposed in the convex shell and has both ends connected to the convex shell and the bracket ii, respectively.

27. An apparatus comprising a door panel, a mouth frame, wherein the interlocking lock of any one of the preceding claims 1-26 is disposed on the door panel, the mouth frame, and when the interlocking lock is in a closed state, the door panel is closed on the mouth frame; when the linkage lock is in an open state, the door plate can be opened from the mouth frame.