CN212960542U - Dovetail-structure locking mechanism, loading platform and holder - Google Patents

Dovetail-structure locking mechanism, loading platform and holder Download PDF

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Publication number
CN212960542U
CN212960542U CN202021350246.9U CN202021350246U CN212960542U CN 212960542 U CN212960542 U CN 212960542U CN 202021350246 U CN202021350246 U CN 202021350246U CN 212960542 U CN212960542 U CN 212960542U
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China
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push rod
dovetail
chute
base
clamping block
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CN202021350246.9U
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Chinese (zh)
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叶梓龙
陈康宁
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Guilin Zhishen Information Technology Co Ltd
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Guilin Zhishen Information Technology Co Ltd
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Abstract

The utility model discloses a locking mechanism, a loading platform and a cloud deck of a dovetail structure, wherein the locking mechanism comprises a clamping block, a push rod, a sliding screw and a first elastic piece; the dovetail sliding groove on one side is provided with a guide groove for accommodating the clamping block to slide in the vertical direction; the base is provided with a first sliding groove for accommodating the push rod to slide along the axial direction of the base, the clamping block is provided with a second sliding groove for accommodating the push rod to slide along the axial direction of the clamping block and slide along the vertical direction of the clamping block, and the first sliding groove is communicated with the second sliding groove; the lateral wall of second spout is equipped with the chute, sliding screw and push rod fixed connection and slide along chute both ends. The utility model discloses a locking mechanism, load platform and cloud platform of forked tail structure turns into the axial displacement of push rod and presss from both sides tight piece along the radial displacement of push rod, for the locking mechanism of current spanner, can prevent that the mistake from touching the fast-assembling board that bump the spanner and lead to and break away from, damage shooting equipment with the base.

Description

Dovetail-structure locking mechanism, loading platform and holder
Technical Field
The utility model relates to a locking mechanism especially relates to a locking mechanism, load platform and cloud platform of forked tail structure.
Background
At present, the quick-mounting plate and the holder base are mostly connected through a dovetail structure and are fixed through a locking mechanism, the locking mechanism adjusts a clamping block through a screw or a cam to tightly press or loosen the quick-mounting plate, a wrench is additionally arranged at one end of the screw or the cam for the convenience of a user to adjust the screw or the cam, but the wrench is frequently touched by mistake in the using process of the holder, so that the quick-mounting plate is separated from the base, and the shooting equipment is damaged; in addition, in order to prevent the condition that the fast-assembling plate breaks away from the base among the prior art, add matched with anti-disengaging structure on fast-assembling plate and base, when the user need dismantle the fast-assembling plate, need put the fast-assembling plate earlier and operate anti-disengaging structure again to anti-disengaging structure's operating space still needs to be reserved in the limited space of cloud platform, lead to fast-assembling plate to dismantle the loaded down with trivial details, operating space limited scheduling problem of step.
In the prior art, chinese patent CN104981644A discloses a locking device and a cradle head used by the same, which includes a mounting plate and a supporting plate, where the mounting plate includes a first surface and two first side walls arranged oppositely, two ends of the first surface opposite to each other extend to form a first boss, inner side walls of the two first bosses are respectively provided with a first sliding slot, two outer side walls of the supporting plate are respectively provided with a second sliding slot matched with the first sliding slot corresponding to the first sliding slot, and one of the first side walls is provided with an accommodating slot; the locking device further comprises a sliding block, the sliding block can be slidably arranged in the accommodating groove, the sliding block comprises a first side face close to the groove bottom of the accommodating groove, a clamping portion extends towards the direction close to the groove bottom, and when the sliding block is fixedly held in the second sliding groove, the supporting plate and the mounting plate are locked through the clamping portion. Chinese patent CN209895128U discloses a multifunctional camera base, which comprises a quick-mounting plate, an intermediate connecting seat and a base, wherein the intermediate connecting seat is positioned between the quick-mounting plate and the base, a locking piece connected with a camera is arranged on the quick-mounting plate, quick-mounting sliding strips are arranged on two sides of the quick-mounting plate, a quick-mounting sliding groove used for sliding into the quick-mounting sliding strips is arranged on the intermediate connecting seat, and a pressing device used for locking the quick-mounting plate is arranged on one side of the quick-mounting sliding groove; the base is provided with a plurality of pipe clamp assemblies, the bottom of the base is provided with a chute interface, and one side of the chute interface is provided with a locking device. Above-mentioned prior art adjusts the cooperation of pressing from both sides tight piece and fast-assembling board through cam and screw, has all add the spanner that the person of facilitating the use adjusted in adjusting part's one end, nevertheless can miss in the normal user of cloud platform and touch this spanner, and this will lead to fast-assembling board and base to break away from, damages shooting equipment.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a locking mechanism, load platform and cloud platform of forked tail structure aims at solving current locking mechanism and easily takes place the mistake in the use and touches, leads to the fast-assembling board to break away from the base, shooting equipment to damage, and has anti-disengaging structure's locking mechanism when dismantling the fast-assembling board, and the step is loaded down with trivial details, operating space is limited scheduling problem.
The utility model discloses take following technical scheme to realize above-mentioned purpose:
a locking mechanism of a dovetail structure comprises a base and a quick-mounting plate, wherein dovetail sliding grooves are formed in two sides of the base, and sliding rails matched with the dovetail sliding grooves are formed in two sides of the quick-mounting plate; the locking mechanism comprises a clamping block, an operating piece and a first elastic piece, and the clamping block and the operating piece are provided with a motion conversion mechanism matched with each other; the clamping block is slidably arranged in the dovetail sliding groove in one side in a penetrating mode, one end of the operating piece is arranged in the base in a penetrating mode and matched with the clamping block, the operating piece can slide along the axial direction of the operating piece, and the clamping block can slide along the radial direction of the operating piece; the motion conversion mechanism converts the axial motion of the operating piece into the radial motion of the clamping block along the operating piece and is used for releasing or pressing the quick-mounting plate; the first elastic member is used for applying resistance to the axial movement of the operating member.
The operating part is a push rod, and the motion conversion mechanism is a sliding screw fixedly connected with the push rod and an inclined groove matched with the sliding screw on the clamping block; the dovetail chute on one side is provided with a guide groove for accommodating the clamping block to slide in the vertical direction, and both the vertical direction and the horizontal direction described in the utility model are vertical relative to the base, the direction perpendicular to the top surface of the base is the vertical direction, and the direction parallel to the top surface of the base is the horizontal direction; the base is provided with a first sliding groove for accommodating the push rod to slide along the axial direction of the base, the clamping block is provided with a second sliding groove for accommodating the push rod to slide along the axial direction of the clamping block and slide along the vertical direction of the clamping block, and the first sliding groove is communicated with the second sliding groove; the inclined groove is formed in the side wall of the second sliding groove and inclines to the vertical direction along the axial direction of the push rod; when the sliding screw slides to the first end of the chute, the clamping block compresses the quick-mounting plate in the vertical direction; when the sliding screw slides to the second end of the chute, the clamping block loosens the quick-mounting plate; the first elastic piece is used for applying elastic force of the sliding screw at the first end of the inclined groove.
In the technical scheme, the sliding of the push rod along the axial direction is converted into the vertical sliding of the clamping block along the vertical direction of the guide groove, so that the quick-mounting plate is pressed or loosened in the vertical direction, namely the dovetail structure is locked or unlocked, wherein the vertical locking comprises the pressing of the upper end surface and the lower end surface of the quick-mounting plate;
in the scheme of compressing the upper end face of the quick assembly plate, the higher end of the chute in the axial direction is a chute first end, the lower end of the chute is a chute second end, at the initial moment, the elastic force of the first elastic piece enables the push rod to be located at the locking position, namely, the sliding screw is located at the chute first end, the clamping block compresses the top face of the quick assembly plate, namely, the clamping block is matched with the bottom face of the dovetail chute to enable the dovetail structure to be in the locking state; the specific unlocking process is that the push rod is operated to slide to counteract the elastic force of the first elastic part and drive the sliding screw to slide towards the second end of the chute along the axial direction of the chute, the first chute limits the push rod to only slide along the axial direction relative to the base, the push rod only slides along the axial direction relative to the first chute, and the push rod slides downwards along the vertical direction relative to the second chute, so that the clamping block slides upwards along the vertical direction relative to the base, namely the clamping block slides upwards along the guide groove and is separated from the top surface of the quick-mounting plate, the quick-mounting plate can slide along the dovetail chute, and the dovetail structure is in an unlocking state; the specific locking process is that the force for operating the push rod is cancelled, the elastic force of the first elastic piece enables the push rod to slide reversely, the sliding screw is driven to slide towards the first end of the chute along the axial direction of the chute, so that the clamping block is driven to slide downwards along the vertical direction relative to the base, namely the clamping block is driven to slide downwards along the guide groove, and at the moment, the clamping block compresses the top surface of the quick-mounting plate and is matched with the bottom surface of the dovetail chute to enable the dovetail structure to be in a locking state;
in the scheme of compressing the lower end face of the quick assembly plate, the lower end of the chute in the axial direction is a chute first end, the higher end of the chute is a chute second end, at the initial moment, the elastic force of the first elastic piece enables the push rod to be located at the locking position, namely, the sliding screw is located at the chute first end, the clamping block compresses the bottom face of the quick assembly plate, namely, the clamping block is matched with the top face of the dovetail chute to enable the dovetail structure to be in the locking state; the specific unlocking process is that the push rod is operated to slide to counteract the elastic force of the first elastic part and drive the sliding screw to slide towards the second end of the chute along the axial direction of the chute, the first chute limits the push rod to only slide along the axial direction relative to the base, the push rod only slides along the axial direction relative to the first chute, and the push rod slides upwards along the vertical direction relative to the second chute, so that the clamping block slides downwards along the vertical direction relative to the base, namely the clamping block slides downwards along the guide groove and is separated from the lower end surface of the quick-mounting plate, the quick-mounting plate can slide along the dovetail chute, and the dovetail structure is in an unlocking state; the locking process is that the force for operating the push rod is cancelled, the elastic force of the first elastic piece enables the push rod to slide reversely, the sliding screw is driven to slide towards the first end of the chute along the axial direction of the chute, so that the clamping block is driven to slide upwards along the vertical direction relative to the base, namely the clamping block is driven to slide upwards along the guide groove, and at the moment, the clamping block compresses the bottom surface of the quick-mounting plate and is matched with the top surface of the dovetail chute to enable the dovetail structure to be in a locking state;
compared with the screw or cam locking mechanism with the wrench in the prior art, the locking mechanism can prevent the mistaken touch of the quick-assembly plate and the base which are caused by the wrench from being separated from each other and damaging the shooting equipment, and under the action of short external force, the locking mechanism returns to a locking state under the separation action of the first elastic piece.
Its further technical scheme does, and first elastic component is the spring, the both ends of spring respectively with the push rod and the inner wall butt of base.
The push rod comprises a first end used for pushing the push rod, the first end is located outside the base and comprises a locking knob in threaded connection with the push rod, and the outer diameter of the locking knob is larger than the inner diameter of the first sliding groove.
In the technical scheme, the locking knob in threaded connection is additionally arranged at the first end of the operation push rod, when the dovetail structure is in a locking state, the locking knob is twisted, the locking knob is abutted to the outer end of the base through the threaded structure, and at the moment, the push rod cannot be pushed from the first end, namely, the push rod cannot be operated to unlock; the structure in this technical scheme can prevent that the maloperation from resulting in the fast-assembling board to break away from the base, improves locking mechanism's reliability.
The further technical scheme is that one end of a locking knob is connected with the external thread of a push rod through an internal thread, and the other end of the locking knob is connected with a gland; the excessive rotation that can prevent the locking knob through the gland among this technical scheme breaks away from the push rod.
The push rod comprises a first end used for pushing the push rod and a second end used for locking the push rod, and the second end comprises a locking knob, a limiting clamping screw, a second elastic piece and a gland; one end of the locking knob is sleeved at the second end of the push rod, the threaded end of the clamping screw is in threaded connection with the second end of the push rod, and the nut section is clamped and connected with the inner wall of the locking knob; the other end of the locking knob is connected with the gland, and two ends of the second elastic piece are respectively abutted against a nut of the clamping screw and the gland; wherein, the locking knob and the base are provided with matched thread structures.
In the technical scheme, the locking knob in threaded connection with the base is additionally arranged at the second end of the push rod, so that the quick-assembly plate can be prevented from being separated from the base due to misoperation, and the reliability of the locking mechanism is improved; the specific further locking process is that when the dovetail structure is in a locking state, the locking knob is pushed, the gland at one end of the locking knob extrudes the second elastic piece, the locking knob slides along the second end of the push rod, the other end of the locking knob is in threaded fit with the base through the threaded structure, the displacement of the locking knob is changed into the compression length of the second elastic piece, the push rod is in a static state under the matching action of the sliding screw and the first end of the chute, and at the moment, the gland is fixedly connected with the base through the locking knob and used for blocking the push rod from being pushed by the first end of the push rod to slide towards the unlocking direction; the specific unlocking process is that when the dovetail structure needs to be unlocked, the locking knob is twisted to separate from the base, and at the moment, the locking knob is linked with the push rod, and the push rod can slide towards the unlocking direction.
The locking mechanism further comprises an anti-disengaging structure, the anti-disengaging structure comprises an anti-disengaging screw and an anti-disengaging baffle positioned at the bottom of the quick-mounting plate, the upper wall of the first chute is provided with an anti-disengaging chute which is axial along the push rod and penetrates through the upper wall of the base, one end of the anti-disengaging screw is connected with the push rod, the other end of the anti-disengaging screw penetrates through the anti-disengaging chute and is matched with the anti-disengaging baffle, and the anti-disengaging baffle is provided with a notch matched with the anti-disengaging screw; when the push rod drives the sliding screw to slide to the second end of the chute, the anti-falling screw slides to one end of the anti-falling chute and is matched with the notch of the anti-falling baffle.
In the technical scheme, the anti-drop screw is additionally arranged on the push rod, when the push rod drives the sliding screw to slide to the second end of the chute, the anti-drop screw slides to one end of the anti-drop chute and is matched with the notch of the anti-drop baffle, namely when the dovetail structure is in an unlocking state, the quick assembly plate slides relative to the base, and the anti-drop screw is positioned on the sliding track of the notch of the anti-drop baffle, so that the quick assembly plate can be detached; when the push rod drives the sliding screw and does not slide to the chute second end (including the sliding screw is between the both ends of chute), the fast-assembling board can slide along the dovetail chute under the effect of great external force, and at this moment, the anticreep screw is not on the slip orbit of anticreep baffle breach to the anticreep screw and the cooperation of anticreep baffle limit the dismantlement of fast-assembling board, so can prevent that the fast-assembling board that the maloperation of push rod brought from droing.
The operating part is a push rod, and the motion conversion mechanism is a sliding screw fixedly connected with the push rod and an inclined groove matched with the sliding screw on the clamping block; the dovetail sliding groove on one side is provided with a guide groove for accommodating the clamping block to slide in the horizontal direction, the base is provided with a first sliding groove for accommodating the push rod to slide along the axial direction of the base, the clamping block is provided with a second sliding groove for accommodating the push rod to slide along the axial direction of the clamping block and slide along the horizontal direction of the push rod, and the first sliding groove is communicated with the second sliding groove; the inclined groove is arranged on one of the lower wall or the upper wall of the second sliding groove, the inclined direction of the inclined groove is inclined towards the dovetail sliding groove on the other side along the axial direction of the push rod, and the sliding screw is fixedly connected with the push rod and slides along the inclined groove; when the sliding screw slides to one end of the chute far away from the dovetail chute on the other side, the clamping block compresses the quick-mounting plate in the horizontal direction; and two ends of the elastic piece are respectively connected with the push rod and the inner wall of the base and used for applying elastic force of one end, far away from the dovetail sliding groove on the other side, of the sliding screw on the chute.
In the technical scheme, the sliding of the push rod along the axial direction is converted into the sliding of the clamping block along the horizontal direction of the guide groove, so that the quick-mounting plate is matched with the dovetail sliding groove on the other side in the horizontal direction to press or loosen the quick-mounting plate, namely, the dovetail structure is locked or unlocked; at the initial moment, the elastic force of the elastic part enables the push rod to be located at a locking position, namely the sliding screw is located at one end, far away from the dovetail sliding groove at the other side, of the chute, the clamping block compresses the quick-mounting plate in the horizontal direction, and the quick-mounting plate is matched with the dovetail sliding groove at the other side to enable the dovetail structure to be in a locking state; the specific unlocking process is that the push rod is operated to slide to offset the elasticity of the elastic part, and a sliding screw is driven to slide towards one end close to the dovetail chute on the other side along the axial direction of the chute, the first chute limits the push rod to only slide along the axial direction of the push rod relative to the base, the push rod only slides along the axial direction of the push rod relative to the first chute, and slides towards the dovetail chute on the other side along the horizontal direction relative to the second chute, so that the clamping block slides towards the direction far away from the dovetail chute on the other side along the horizontal direction relative to the base, namely, the clamping block slides towards the direction far away from the dovetail chute on the other side along the guide groove and is separated from the side surface of the quick-mounting plate, the quick-mounting plate can slide along the; the concrete locking process does, and the power of cancellation operation push rod, the elasticity of elastic component make the push rod reverse slip, drive the sliding screw along the chute to the one end of keeping away from opposite side dovetail groove slides to the direction that the guide way was followed to the tight piece of drive clamp slides to opposite side dovetail groove, and the tight piece of clamp compresses tightly the fast-assembling board this moment on the horizontal direction, makes the forked tail structure be in the lock-out state with the cooperation of opposite side dovetail groove.
The push rod is also connected with a pulling bolt protruding out of the base, and the base is also provided with a pulling bolt sliding groove for accommodating the sliding of the pulling bolt; according to the structure in the technical scheme, the two ends of the push rod can not protrude out of the first sliding groove, and a user can conveniently operate the push rod to unlock through the bolt pulling screw.
A locking mechanism of a dovetail structure comprises a base and a quick-mounting plate, wherein dovetail sliding grooves are formed in two sides of the base, and sliding rails matched with the dovetail sliding grooves are formed in two sides of the quick-mounting plate; the locking mechanism comprises a clamping block, a push rod and an elastic piece; the dovetail sliding groove on one side is provided with a guide groove for accommodating the clamping block to slide, the base is provided with a first sliding groove for accommodating the push rod to slide along the axial direction of the base, the groove direction of the first sliding groove is the same as the moving direction of the clamping block, and the clamping block is fixedly connected with the push rod; and two ends of the elastic piece are respectively connected with the clamping block and the inner wall of the base and used for applying elastic force of the clamping block moving towards the direction close to the quick mounting plate.
According to the technical scheme, the push rod is fixedly connected with the clamping block, the clamping block is driven to slide along the guide groove by operating the push rod, namely the clamping block extrudes the elastic piece to move in the direction far away from the quick-mounting plate, so that the quick-mounting plate is released, and the dovetail structure is unlocked; the acting force on the push rod is cancelled, and the resilience force of the elastic piece drives the clamping block to move towards the direction of the quick-mounting plate, so that the quick-mounting plate is clamped, and the dovetail mechanism is locked.
A load table comprises the dovetail-structure locking mechanism.
A cloud platform, includes above-mentioned load platform.
The utility model has the advantages that:
the utility model provides a locking mechanism, load platform and cloud platform of forked tail structure can convert the axial displacement of push rod into the radial displacement of clamping block along the push rod to realize the elasticity of clamping block, and compared with the screw or the cam locking mechanism that have the spanner among the prior art, can prevent to miss touch the fast-assembling board that the spanner leads to and break away from with the base, damage the shooting equipment, and under the effect of transient external force, locking mechanism can also get back to the locking state; the locking structure at the end part of the push rod further prevents the clamping block from being incapable of locking the quick-mounting plate due to the mistaken touch of a user; the release of the anti-falling structure can be completed through unlocking operation, the operation steps are simple, and the operation space is saved.
Drawings
FIG. 1 is a diagram: first forked tail spout is located left locking mechanical part and decomposes the sketch map.
FIG. 2 is a diagram of: first forked tail spout is located left locking mechanism's locking knob unblock structure sketch map.
FIG. 3 is a diagram of: first forked tail spout is located left locking mechanism's locking knob locking structure sketch map.
FIG. 4 is a diagram of: a locking mechanism of forked tail structure fast-assembling board's anticreep baffle and breach structure sketch map.
FIG. 5 is a diagram: the locking mechanism part that first forked tail spout is located right side decomposes the sketch map.
FIG. 6 is a diagram of: first forked tail spout is located the locking mechanism's on right side schematic structure diagram.
FIG. 7 is a diagram of: first forked tail spout is located the locking mechanism's on right side section view.
FIG. 8 is a diagram of: the part decomposition schematic diagram of the locking mechanism that first spout was laid along first forked tail spout.
FIG. 9 is a diagram of: first spout follows the section graphic representation intention of the locking mechanism that first forked tail spout laid.
FIG. 10 is a diagram: first spout follows the locking mechanism's that first forked tail spout laid structural schematic.
In the figure:
1. a base; 11. a first dovetail chute; 12. a second dovetail chute; 110. a guide groove; 101. a straight groove; 102. an anti-drop chute; 103. a bolt pulling chute; 10. a first chute; 2. a clamping block; 20. a second chute; 21. a chute; 211. a chute first end; 212. a chute second end; 3. a push rod; 31. a sliding screw; 32. anti-drop screws 33, bolt-pulling screws; 301. a first end of the push rod; 302. a second end of the push rod; 4. an elastic member; 41. a first elastic member; 5. locking the knob; 51. a gland; 52. a second elastic member; 53. a clamping screw; 6. a quick-mounting plate; 61. an anti-drop baffle plate; 60. and (4) a notch.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1 to 10 and the embodiments, and features in the following embodiments and examples may be combined with each other without conflict.
As shown in fig. 1 to 3, the present embodiment provides a locking mechanism of a dovetail structure, the dovetail structure includes a base 1 and a quick-mounting plate, a first dovetail chute 11 is disposed on the left side of the base 1, a second dovetail chute 12 is disposed on the right side of the base, and slide rails matched with the first dovetail chute 11 and the second dovetail chute 12 are respectively disposed on two sides of the quick-mounting plate; the locking mechanism comprises a clamping block 2, an operating piece and a first elastic piece 41, wherein the clamping block 2 and the operating piece are provided with a motion conversion mechanism matched with each other; specifically, the operating part is a push rod 3, the motion conversion mechanism is a sliding screw 31 fixedly connected with the push rod 3, and the inclined groove 21 matched with the sliding screw 31 is arranged on the clamping block 2; the first dovetail chute 11 is provided with a guide groove 110 for accommodating the clamping block 2 to slide up and down along the vertical direction, and the guide groove 110 in the embodiment penetrates through the upper wall and the lower wall of the first dovetail chute 11; a first sliding groove 10 for accommodating the push rod 3 to slide along the axial direction of the push rod 3 is arranged in the base 1 below the first dovetail sliding groove 11 of the base 1, wherein the first sliding groove 10 is perpendicular to the groove direction of the first dovetail sliding groove 11, a second sliding groove 20 for accommodating the push rod 3 to slide along the axial direction of the push rod 3 and slide along the vertical direction is arranged on the clamping block 2, and the first sliding groove 10 is communicated with the second sliding groove 20; the side wall of the second chute 20 is provided with a chute 21, the chute 21 inclines in the vertical direction along the axial direction of the push rod, the sliding screw 31 is fixedly connected with the push rod 3 and slides along the two ends of the chute 21, the embodiment adopts a locking scheme that the clamping block 2 compresses the top surface of the quick-assembly plate, so that the chute 21 comprises a chute first end 211 which is higher and a chute second end 212 which is lower in the axial direction;
in the installation process and the operation process in the present embodiment, one end of the push rod 3 enters the first chute 10 and the second chute 20 from the left side of the base 1 in sequence, and a first elastic member 41, specifically a spring, is installed between the end and the inner wall of the base 1; the opening direction of the chute 21 is that the left side is a chute first end 211 (the higher end of the chute 21 in the axial direction), and the right side is a chute second end 212 (the lower end of the chute 21 in the axial direction); one end of the sliding screw 31 sequentially penetrates through the front wall of the base 1 and the inclined groove 21 and is in threaded connection with the push rod 3, and the front wall of the base 1 is further provided with a straight groove 101 for accommodating the sliding screw 31 to slide along the axial direction of the push rod; at this time, the first end 211 of the chute on the left side can be matched with the sliding screw 31 to limit the push rod 3 from being separated from the base 1 from the left side, and the elastic force of the first elastic piece 41 can limit the push rod 3 from being separated from the base 1 from the right side; the push rod 3 protrudes out of the left side of the base 1 for operation by a user; at the initial moment, the elastic force of the first elastic element 41 pushes the push rod 3 to move leftwards, so that the sliding screw 31 is positioned at the first end 211 of the chute, at the moment, the clamping block 2 compresses the top surface of the quick-mounting plate, and the quick-mounting plate is clamped by matching with the bottom surface of the first dovetail chute 11, namely, the dovetail structure is in a locking state; the specific unlocking process is that the push rod 3 is pushed rightwards on the left side of the push rod 3, the push rod 3 extrudes the first elastic part 41 to drive the sliding screw 31 to slide towards the second end 212 of the chute along the axial direction of the chute 21, the first chute 10 limits the push rod 3 to only slide along the axial direction of the base 1 relative to the base, the push rod 3 slides rightwards along the axial direction of the push rod relative to the first chute 10 and slides rightwards along the axial direction of the push rod relative to the second chute 20 and slides downwards along the axial direction and the vertical direction relative to the second chute 20, therefore, the clamping block 2 slides upwards along the vertical direction relative to the base 1, namely, the clamping block 2 slides upwards along the guide groove 110 and is separated from the top surface of the quick-assembly plate, the; the specific locking process does, the power of operation push rod 3 is cancelled, the elasticity of first elastic component 41 makes push rod 3 reverse slip, drive sliding screw 31 along chute 21's axial to the first end 211 of chute slide, thereby it has along the decurrent slip of vertical direction to drive the relative base 1 of clamp block 2, drive clamp block 2 promptly and follow guide way 110 lapse, press from both sides the top surface that block 2 compressed tightly the fast-assembling board this moment, make the forked tail structure be in the lock-out condition with the bottom surface cooperation of first forked tail spout 11.
The position of the guide slot 110, the position and the slot direction of the first sliding slot 10, the operating end of the push rod 3 outside the base, the directions of the first chute end 211 and the second chute end 212, the specific structure of the first elastic member 41, and the scheme of the clamping block 2 matching with the top surface of the quick-mounting plate are exemplarily shown in the above embodiments, and the above components or structures can be replaced by the following components according to other embodiments or practical applications:
1. in the alternative to the position of the guide slot 110, the guide slot 110 may also be replaced by another position, for example, the guide slot 110 may also be inside the first dovetail slot 11, or the guide slot 110 may only extend through the upper wall of the first dovetail slot 11, or the guide slot 110 may only extend through the lower wall of the first dovetail slot 11, or the guide slot 110 may be located in the second dovetail slot 12; in the embodiment with a larger internal space of the first dovetail chute 11 or a smaller size of the pressing mechanism, the above alternative solution can also accommodate the clamping block 2 to slide in the vertical direction, so that it can be satisfied that the clamping block 2 presses the quick-mounting plate in the vertical direction, and therefore, the guide groove 110 may not penetrate through the upper wall and/or the lower wall of the first dovetail chute 11;
2. in an alternative to the position and direction of the first runner 10, the position of the first runner 10 may also be provided in the lower wall, the upper wall or the side wall of the first dovetail runner 11, the direction of the first runner 10 being parallel to the slot direction of the first dovetail runner 11; or the position of the first sliding chute 10 may also be arranged in the part of the base 1 below the first dovetail sliding chute 11, and the direction of the first sliding chute 10 may be parallel to the groove of the first dovetail sliding chute 11 or obliquely arranged from the first dovetail sliding chute 11 to the direction of the second dovetail sliding chute 12, and the like;
3. in the alternative of the operation end where the push rod 3 is located outside the base, the above embodiment exemplarily shows that the first sliding slot 10 penetrates through the left side wall of the base 1, i.e. the push rod 3 enters the first sliding slot 10 from the left side and operates the push rod 3 at the left side, and can also be replaced by the first sliding slot 10 penetrating through the right side wall of the base 1, i.e. the push rod 3 enters the first sliding slot 10 from the right side and operates the push rod 3 at the right side, wherein the operation of unlocking is that the push rod 3 is pulled at the end of the right side of the push rod 3 to press the first elastic member 41;
4. in the alternative of the directions of the chute first end 211 and the chute second end 212, the right side is the chute first end 211 (higher end), and the left side is the chute second end 212 (lower end), in which the elastic force exerted by the first elastic member 41 is opposite to the above embodiment, that is, the left end of the first elastic member 41 abuts against the protrusion of the inner ring of the first chute 10 and the right end abuts against the protrusion of the outer ring of the push rod 3, and the operation direction of the push rod 3 during unlocking is opposite to the above embodiment (that is, the push rod 3 is pulled on the left side or the push rod 3 is pressed on the right side);
5. in the alternative of the specific structure of the first elastic member 41, an elastic member such as a plate spring, a rubber block, or a tension spring may be used instead; wherein, elastic component such as leaf spring, block rubber is the same with the connected mode of spring, in the technical scheme of extension spring, the both ends of extension spring respectively with push rod 3 and 10 wall connections of first spout, the one end that the 10 inner walls of first spout are connected to the extension spring is located the left side of connecting 3 one ends of push rod, so the elasticity pulling push rod 3 of extension spring moves left, makes sliding screw 31 be located chute first end 211, and the forked tail structure is in locking state promptly.
6. In the alternative scheme of matching the clamping block 2 with the top surface of the quick-assembly plate, the clamping block 2 can be matched and replaced with the bottom surface of the quick-assembly plate, the specific structure and the unlocking process are that the lower end of the chute 21 in the axial direction is a chute first end, the higher end is a chute second end, the first end is positioned on the left side of the second end, the push rod 3 enters the first chute 10 from the left side, the left side of the push rod 3 protrudes out of the base 1 for operation, the first elastic piece 41 is specifically a spring, the left end of the first elastic piece is abutted against the right end of the push rod 3, the right end of the first elastic piece 41 is abutted against the right end of the first chute 10, and the elastic force of the first elastic piece 41; at the initial moment, the elastic force of the first elastic element 41 enables the push rod to be in the locking position, namely the sliding screw 31 is positioned at the first end of the chute, and the clamping block 2 compresses the bottom surface of the quick-mounting plate, namely the clamping block 2 is matched with the top surface of the first dovetail chute 11 to enable the dovetail structure to be in the locking state; the specific unlocking process is that the push rod is pressed from the left side to slide so as to counteract the elastic force of the first elastic part 41, the sliding screw 31 is driven to slide towards the second end of the chute along the axial direction of the chute 21, the first chute 10 limits the push rod 3 to slide rightwards relative to the base 1 along the axial direction thereof, the push rod 3 slides rightwards relative to the first chute 10 along the axial direction thereof, and slides upwards relative to the second chute 20 along the axial direction thereof, so that the clamping block 2 slides downwards relative to the base 1 along the vertical direction, namely the clamping block 2 slides downwards along the guide groove 110 and is separated from the bottom surface of the quick-assembly plate, the quick-assembly plate can slide along the dovetail chute, and the dovetail structure is in an unlocking state; the specific locking process does, the left pressing force of cancellation push rod 3, the elasticity of first elastic component 41 makes push rod 3 reverse slip, drive sliding screw 31 and slide to the first end of chute along the axial of chute, thereby it has along the ascending slip of vertical direction to drive the relative base 1 of tight piece 2 of clamp, drive promptly and press from both sides tight piece 2 and upwards slide along guide way 110, press from both sides the bottom surface that tight piece 2 compressed tightly the fast-assembling board this moment, make the forked tail structure be in the lock-out condition with the top surface cooperation of first forked tail spout 11.
In another embodiment, as shown in fig. 1 to 3, on the basis of the above embodiments, the push rod 3 includes a first push rod end 301 for pushing operation, in this embodiment, the left end of the push rod 3 is the first push rod end 301, the first push rod end 301 is located outside the base 1, and includes a locking knob 5 in threaded connection with the push rod 3, the thread of the locking knob 5 may be an external thread or an internal thread, the push rod 3 is provided with an internal thread or an external thread matching with the locking knob 5, and the outer diameter of the locking knob 5 is greater than the inner diameter of the first sliding chute 10; when the dovetail structure is in a locked state, the locking knob 5 is twisted, the locking knob 5 moves towards the direction of the base 1 through the thread structure and abuts against the left end of the base 1, and at the moment, the locking knob 5 is matched with the left end of the base 1 to limit a user to push the push rod 3 from the left end, namely the push rod 3 cannot be operated to unlock; the structure of this embodiment can prevent that maloperation from resulting in fast-assembling board to break away from the base, improves locking mechanism's reliability.
In still another embodiment, as shown in fig. 1 to 3, in addition to the above embodiments, one end of the locking knob 5 is connected with the external thread of the push rod through an internal thread, and the other end of the locking knob 5 is connected with the pressing cover 51, and when the locking knob 5 is moved to abut on the end of the base 1 through a thread, the first end 301 of the push rod moves to one end of the pressing cover 51 inside the locking knob 5, and the pressing cover 51 can prevent the locking knob 5 from being excessively rotated to be separated from the push rod 3.
In another embodiment, as shown in fig. 1 to 4, in addition to the above embodiment, the locking mechanism further includes an anti-disengaging structure, the anti-disengaging structure includes an anti-disengaging screw 32 and an anti-disengaging baffle 61 located at the bottom of the quick-mounting plate 6, the upper wall of the first chute 10 is provided with an anti-disengaging chute 102 that extends along the axial direction of the push rod 3 and through the upper wall of the base 1, one end of the anti-disengaging screw 32 is connected with the push rod 3, the other end of the anti-disengaging screw penetrates through the anti-disengaging chute 32 and is engaged with the anti-disengaging baffle 61, and the anti-disengaging baffle 61 is provided with; when the push rod 3 drives the sliding screw 32 to slide to the second end of the chute, the anti-falling screw 32 slides to one end of the anti-falling chute 102 and is matched with the notch 60 of the anti-falling baffle 61; the specific disassembly process is that when the push rod 3 drives the sliding screw 31 to slide to the second end 212 of the chute (one end of the unlocking and locking mechanism), the anti-falling screw 32 slides to one end of the anti-falling chute 102 and is matched with the notch 60 of the anti-falling baffle 61, namely when the dovetail structure is in an unlocking state, the quick-assembly plate 6 slides relative to the base 1, and the anti-falling screw 32 is located on the sliding track of the notch 60 of the anti-falling baffle, so that the disassembly of the quick-assembly plate can be realized; when push rod 3 drives sliding screw 32 and does not slide to chute second end 212 (including sliding screw 31 is in between the both ends of chute 21), fast-assembling board 6 can slide along the forked tail spout under the effect of great external force, and at this moment, anticreep screw 32 is not on the slip orbit of anticreep baffle breach 60 to anticreep screw 32 cooperates the dismantlement of restriction fast-assembling board with anticreep baffle 61, so can prevent that the fast-assembling board that the maloperation of push rod 3 brought from droing.
In another embodiment, as shown in fig. 5 to 7, the present embodiment provides a locking mechanism of a dovetail structure, the dovetail structure includes a base 1 and a quick-mounting plate, a first dovetail chute 11 is disposed on the right side of the base 1, a second dovetail chute 12 is disposed on the left side of the base, and two sides of the quick-mounting plate are respectively provided with a slide rail matched with the first dovetail chute 11 and the second dovetail chute 12; the locking mechanism comprises a clamping block 2, a push rod 3, a sliding screw 31 and a first elastic piece 41; the first dovetail chute 11 is provided with a guide groove 110 for accommodating the clamping block 2 to slide up and down along the vertical direction, and the guide groove 110 in the embodiment penetrates through the upper wall and the lower wall of the first dovetail chute 11; a first sliding groove 10 for accommodating the push rod 3 to slide along the axial direction of the first dovetail sliding groove is formed in the base 1 below the first dovetail sliding groove 11, the first sliding groove 10 is perpendicular to the groove direction of the first dovetail sliding groove 11, a second sliding groove 20 for accommodating the push rod 3 to slide along the axial direction and slide along the vertical direction is formed in the clamping block 2, and the first sliding groove 10 is communicated with the second sliding groove 20; the side wall of the second chute 20 is provided with a chute 21, the chute 21 inclines in the vertical direction along the axial direction of the push rod, the sliding screw 31 is fixedly connected with the push rod 3 and slides along the two ends of the chute 21, the embodiment adopts a locking scheme that the clamping block compresses the top surface of the quick-assembly plate, so that the chute 21 comprises a chute first end 211 which is higher and a chute second end 212 which is lower in the axial direction;
in the installation process and the operation process in the present embodiment, one end of the push rod 3 sequentially enters the first chute 10 and the second chute 20 from the right side of the base, the chute 21 is opened in the direction that the right side is the chute first end 211 and the left side is the chute second end 212; one end of the sliding screw 31 sequentially penetrates through the front wall and the inclined groove of the base 1 and is in threaded connection with the push rod 3, and the front wall of the base 1 is further provided with a straight groove 101 for accommodating the sliding screw 31 to slide along the axial direction of the push rod; the push rod 3 is further provided with an outer ring bulge, the inner wall of the base 1 is further provided with a bulge for mounting a first elastic part 41, specifically a spring, wherein the outer ring bulge of the push rod 3 is positioned on the right side of the bulge on the inner wall of the base 1, and therefore, the elasticity of the first elastic part 41 pushes the push rod 3 to enable the sliding screw 31 to be positioned at the chute first end 211 on the right side of the chute; at this time, the first end 211 of the right chute is matched with the sliding screw 31 to limit the push rod 3 from being separated from the base 1 from the right side, and the elastic force of the first elastic member 41 can limit the push rod 3 from being separated from the base 1 from the left side; the push rod 3 of the installed locking mechanism protrudes out of the right side of the base 1 and is used for operation of a user; at the initial moment, the elastic force of the first elastic element 41 pushes the push rod 3 to move rightwards, so that the sliding screw 31 is positioned at the first end 211 of the chute, at the moment, the clamping block 2 compresses the top surface of the quick-mounting plate, and the quick-mounting plate is clamped by matching with the bottom surface of the first dovetail chute 11, namely, the dovetail structure is in a locking state; the specific unlocking process is that the push rod 3 is pushed leftwards on the right side of the push rod 3 to extrude the first elastic part 41 to drive the sliding screw 31 to slide towards the second end 212 of the chute along the axial direction of the chute 21, the first chute 10 limits the push rod 3 to only slide along the axial direction of the base 1 relative to the base, the push rod 3 slides leftwards along the axial direction of the push rod relative to the first chute 10 and slides leftwards along the axial direction of the push rod relative to the second chute 20 and slides downwards along the axial direction and the vertical direction relative to the second chute 20, therefore, the clamping block 2 slides upwards along the vertical direction relative to the base 1, namely, the clamping block 2 slides upwards along the guide groove 110 and is separated from the top surface of the quick-assembly plate, the quick-assembly; the concrete locking process does, the power of cancel operation push rod 3, the elasticity of first elastic component 41 makes push rod 3 slide right, drive sliding screw 31 along chute 21's axial to the first end 211 of chute slide, thereby it has along the decurrent slip of vertical direction to drive the relative base 1 of clamp block 2, drive clamp block 2 promptly and follow guide way 110 lapse, press from both sides the top surface that block 2 compressed tightly the fast-assembling board this moment, make the forked tail structure be in the lock-out condition with the bottom surface cooperation of first forked tail spout 11.
In another embodiment, as shown in fig. 5 to 7, on the basis of the above embodiments, the push rod 3 includes a first end 301 for pushing the push rod and a second end 302 for locking the push rod, in this embodiment, the right end of the push rod is the first end 301 of the push rod, the left end is the second end 302 of the push rod, and the second end 302 of the push rod includes the locking knob 5, the gland 51, the second elastic member 52 and the locking screw 53; one end of the locking knob 5 is sleeved at the second end 302 of the push rod, the threaded end of the clamping screw 53 is in threaded connection with the second end 302 of the push rod, and the nut section is clamped and connected with the inner wall of the locking knob 5; the other end of the locking knob 5 is connected with the gland 51, and two ends of the second elastic element 52 are respectively abutted with the nut of the clamping screw 53 and the gland 51; the locking knob 5 and the base 1 are provided with matched thread structures, wherein the external thread of the locking knob 5 is matched with the internal thread at the end part of the first sliding chute 10; in the structure of the embodiment, the locking knob 5 in threaded connection with the first sliding groove 10 is additionally arranged at the second end 302 of the push rod, so that the quick-assembly plate can be prevented from being separated from the base 1 due to misoperation, and the reliability of the locking mechanism is improved; the specific push rod locking process is that when the dovetail structure is in a locking state, the locking knob 5 is pushed from the left side, the gland 51 at one end of the locking knob 5 extrudes the second elastic part 52, the locking knob 5 slides along the second end 302 of the push rod, the other end of the locking knob 5 is matched with the internal thread of the first chute 10 through a thread structure, the displacement of the locking knob 5 is changed into the compression length of the second elastic part 52, the push rod 3 is in a static state under the matching action of the sliding screw 31 and the chute first end 211, and at the moment, the gland 51 is fixedly connected with the base 1 through the locking knob 5 and used for blocking the push rod 3 from being pushed from the first end 301 of the push rod to slide towards the unlocking direction; the specific unlocking process is that when the dovetail structure needs to be unlocked, the locking knob 5 is twisted to separate from the base 1, at the moment, the locking knob 5 is linked with the push rod 3, and the push rod 3 can slide towards the unlocking direction.
In another embodiment, as shown in fig. 8 to 10, the present embodiment discloses a locking mechanism of a dovetail structure, the dovetail structure includes a base 1 and a quick-assembly plate, dovetail sliding grooves are provided on two sides of the base 1, in the present embodiment, a first dovetail sliding groove 11 is provided on the left side, a second dovetail sliding groove 12 is provided on the right side, and slide rails matched with the dovetail sliding grooves are provided on two sides of the quick-assembly plate; the locking mechanism comprises a clamping block 2, a push rod 3, a sliding screw 31 and an elastic piece 4; the first dovetail chute 11 is provided with a guide groove 110 for accommodating the clamping block 2 to slide left and right along the horizontal direction, wherein the guide groove 110 penetrates through the upper wall, the lower wall and the side wall of the first dovetail chute 11, the base 1 is provided with a first chute 10 for accommodating the push rod 3 to slide along the axial direction of the first dovetail chute, in the embodiment, the first chute 10 is parallel to the groove direction of the first dovetail chute 11 and is arranged on the left side of the first chute 10, the clamping block 2 is provided with a second chute 20 for accommodating the push rod 3 to slide along the axial direction of the push rod 3 and slide left and right along the horizontal direction, and the first chute 10 is communicated with the second chute 20; the lower wall of the second chute 20 is provided with a chute 21, the inclined direction of the chute 21 is inclined towards the direction of the second dovetail chute 12 along the axial direction of the push rod 3, and the sliding screw 31 is fixedly connected with the push rod 3 and slides along the chute 21; chute 21 includes a chute first end 211 distal from second dovetail chute 12 and a chute second end 212 proximal to second dovetail chute 12;
the installation process and the operation process in this embodiment are that one end of the push rod 3 enters the first chute 10 and the second chute 20 from the front end of the base in sequence, the front end of the elastic member 4 abuts against the end of the push rod 3, and the rear end of the elastic member 4 abuts against the inner wall of the base 1, in this embodiment, the elastic member 4 is specifically a spring, and the spring gives the push rod 3 the elastic force for sliding forward; in the present embodiment, the opening direction of the chute 21 is such that the chute first end 211 is located at the front end and the chute second end 212 is located at the rear end; one end of the sliding screw 31 sequentially penetrates through the lower wall of the base 1 and the inclined groove 21 to be connected with the push rod 3 through threads, and the lower wall of the base 1 is also provided with a straight groove for accommodating the sliding screw 31 to slide along the axial direction of the push rod 3; at this time, the chute first end 211 at the front end is matched with the sliding screw 31 to limit the push rod 3 from separating from the base 1 from the front end, and the elastic force of the elastic piece 4 can limit the push rod 3 from separating from the base 1 from the rear end; the push rod 3 protrudes out of the front end of the base 1 for operation by a user; at the initial moment, the elastic force of the elastic part 4 pushes the push rod 3 to move forward, so that the sliding screw 31 is positioned at the first end 211 of the chute, at the moment, the clamping block 2 compresses the left side of the quick-mounting plate and is matched with the second dovetail chute 12 to clamp the quick-mounting plate in the horizontal direction, namely, the dovetail structure is in a locking state; the specific unlocking process is that the push rod 3 is pushed backwards at the front end of the push rod 3, the elastic part 4 is extruded, the sliding screw 31 is driven to slide towards the second end 212 of the chute along the axial direction of the chute 21, the first chute 10 limits the push rod 3 to slide along the axial direction of the base 1 relative to the base, the push rod 3 slides backwards along the axial direction of the first chute 10 relative to the first chute 10, and slides backwards along the axial direction of the second chute 20 relative to the base and slides rightwards along the horizontal direction, so that the clamping block 2 slides leftwards along the horizontal direction relative to the base, namely the clamping block 2 slides along the guide groove 110 in the direction far away from the second dovetail chute 12 and breaks away from the side surface of the quick-mounting plate, the quick-mounting plate can slide along the dovetail chute, and the quick-mounting; the concrete locking process does, and the power of operation push rod 3 is cancelled, and the elasticity of elastic component 4 makes push rod 3 reverse slip, drives sliding screw 31 and slides to chute first end 211 along the axial of chute 21 to the drive presss from both sides tight piece 2 and slides to the direction of second dovetail groove 12 along guide way 110, presss from both sides tight piece 2 this moment and compresses tightly the fast-assembling board on the horizontal direction, makes the forked tail structure be in the lock-out state with the cooperation of second dovetail groove 12.
The above embodiments exemplarily show the position of the guide slot 110, the position and the slot direction of the first sliding slot 10, the operation end of the push rod 3 outside the base, the directions of the chute first end 211 and the chute second end 212, the position of the chute 21, and the specific structure of the elastic member 4, and according to other embodiments or practical applications, the above components or structures can be replaced by the following means:
1. in the alternative to the position of the guide slot 110, the guide slot 110 may also be replaced by another position, for example, the guide slot 110 may also be inside the first dovetail slot 11, or the guide slot 110 may only extend through the upper wall of the first dovetail slot 11, or the guide slot 110 may only extend through the lower wall of the first dovetail slot 11, or the guide slot 110 may be located in the second dovetail slot 12; in the embodiment with a larger internal space of the first dovetail chute 11 or a smaller size of the pressing mechanism, the above-mentioned alternative solution can also accommodate the clamping block 2 to slide in the vertical direction, so that it can be satisfied that the clamping block 2 presses the quick-mounting plate in the vertical direction, and therefore, it is not necessary that the guide groove 110 penetrates through the upper wall, the lower wall and the side wall of the first dovetail chute 11;
2. in the alternative of the position and direction of the first chute 10, the position of the first chute 10 may also be provided in the lower wall, the upper wall or below the first dovetail chute 11 of the first dovetail chute 11, or the position of the first chute 10 may also be provided in the part of the base 1 below the first dovetail chute 11, the direction of the first chute 10 may be intersecting with the projection of the first dovetail chute 11 slot direction, etc.;
3. in the alternative of the operation end where the push rod 3 is located outside the base, the above embodiment exemplarily shows that the first sliding groove 10 penetrates through the front wall of the base 1, i.e. the push rod 3 enters the first sliding groove 10 from the front end and operates the push rod 3 at the front end, and can also be replaced by that the first sliding groove 10 penetrates through the rear wall of the base 1, i.e. the push rod 3 enters the first sliding groove 10 at the rear end and operates the push rod 3 at the rear end, wherein the unlocking operation is that the push rod 3 is pulled at the rear end of the push rod 3 to press the elastic member 4;
4. in the alternative of the directions of the chute first end 211 and the chute second end 212, the chute first end 211 (the end far away from the second dovetail chute 12) can be replaced by a scheme that the rear end is the chute first end 211 and the front end is the chute second end 212 (the end near to the second dovetail chute 12), the elastic force exerted by the elastic member 4 in the scheme is opposite to the above-mentioned embodiment, namely the front end of the elastic member 4 abuts against the inner wall of the base 1 and the rear end abuts against the outer ring of the push rod 3, and the operation direction of the push rod 3 in the unlocking process is opposite to the above-mentioned embodiment (namely the push rod 3 is pulled at the front end or the push rod 3 is pressed at the rear end);
5. in an alternative to the position of the chute 21, it is also possible to lock and unlock the dovetail structure by opening the chute 21 in the upper wall of the second chute 20, the locking principle and unlocking operation of which are the same as in the above-described embodiment.
6. In the alternative of the concrete structure of elastic component 4, can also replace through elastic component such as leaf spring, rubber block, leaf spring, wherein, elastic component such as leaf spring, rubber block is the same with the connected mode of spring, in the technical scheme of extension spring, the both ends of extension spring respectively with push rod 3 and the interior wall connection of first spout 10, the one end that the extension spring is connected the 10 interior walls of first spout is located the front end of connecting push rod 3 one end, so the elasticity pulling push rod 3 forward motion of extension spring makes sliding screw 31 be located chute first end 211, and the forked tail structure is in locking state promptly.
In another embodiment, as shown in fig. 8 and 10, in addition to the above embodiments, the push rod 3 is further connected to a bolt screw 33 protruding from the left side wall of the base, and the bolt sliding slot 103 for accommodating the bolt screw 33 to slide is further disposed on the right side wall of the base, both ends of the push rod 3 in this embodiment may not protrude from the first sliding slot, and the bolt screw 33 can facilitate a user to operate the push rod 3 for unlocking.
In another embodiment, another locking mechanism of a dovetail structure is provided, the dovetail structure comprises a base 1 and a quick-mounting plate, a first dovetail chute 11 is arranged on the left side of the base 1, a second dovetail chute 12 is arranged on the right side of the base, and slide rails matched with the first dovetail chute 11 and the second dovetail chute 12 are respectively arranged on two sides of the quick-mounting plate; the locking mechanism comprises a clamping block 2, a push rod 3 and an elastic piece 4; the first dovetail chute 11 is provided with a guide groove 110 for accommodating the clamping block 2 to slide in the horizontal direction, the base 1 is provided with a first chute 10 for accommodating the push rod 3 to slide along the axial direction of the first dovetail chute, the sliding direction of the first chute 10 is the same as that of the clamping block 2 in the embodiment and is vertical to the groove direction of the first dovetail chute 11, and the clamping block 2 is fixedly connected with the push rod 3, wherein the specific fixed connection mode in the embodiment is threaded connection; the two ends of the elastic piece 4 are respectively connected with the clamping block 2 and the inner wall of the base 1, and the specific connection mode is that the two ends of the elastic piece 4 are respectively abutted against the end face, far away from the second dovetail chute 12, of the clamping block 2 and the inner wall of the base 1 opposite to the end of the clamping block 2, so that the elastic force of the clamping block 2 moving towards the second dovetail chute 12 can be applied;
the installation process and the operation process in the embodiment are that one end of the push rod 3 enters the first sliding chute 10 from one end where the second dovetail sliding chute 12 is located, and is connected with the clamping block 2 through threads, one end of the base 1 where the second dovetail sliding chute 12 is arranged protrudes from the other end of the push rod 3, and is used for a user to operate the push rod 3, the elastic piece 4 is installed between the end face, far away from the second dovetail sliding chute 12, of the clamping block 2 and the inner wall of the base 1, and the elastic piece 4 is specifically a spring in the embodiment and gives the push rod 3 elastic force for moving towards the direction of the second dovetail sliding chute 12; at the initial moment, the elastic force of the elastic part 4 pushes the push rod 3 to move towards the direction of the second dovetail chute 12, and the clamping block 2 and the second dovetail chute 12 are matched to clamp the quick-mounting plate in the horizontal direction, namely the dovetail structure is in a locking state; the specific unlocking process is that the push rod 3 is pushed to protrude out of one end of the base 1 to drive the clamping block 2 to move in the direction away from the second dovetail sliding groove 12 to extrude the elastic piece 4, so that the quick-mounting plate is released, and the dovetail structure is unlocked; the effort on the cancellation push rod 3, the resilience force of elastic component 4 drives and presss from both sides tight piece 2 and to the direction motion of second forked tail spout 12 to press from both sides tight fast-assembling board, realize the locking of forked tail mechanism.
The above embodiment exemplarily shows the position and the slot direction of the first sliding slot 10, the operation end of the push rod 3 outside the base, and the specific structure of the elastic member 4, and according to other embodiments or practical applications, the above components or structures can be replaced by the following means:
1. in the alternative of the position and direction of the first sliding chute 10, the groove direction of the first sliding chute 10 is the same as the moving direction of the clamping block 2, the guide groove 110 can also be a structure for accommodating the vertical sliding of the clamping block 2, the top surface of the quick-mounting plate is pressed or released through the vertical sliding to realize locking or unlocking, and two ends of the elastic member are respectively abutted between the end surface of the clamping block 2, which is far away from the quick-mounting plate in the vertical direction, and the inner wall of the base 1, so that the elastic force of the clamping block 2 moving towards the quick-mounting plate direction can be applied; the direction of the guide groove 110 can also be a sliding structure which can accommodate the inclination between the vertical direction and the horizontal direction of the clamping block 2, and the dovetail structure can be locked and unlocked in the same way.
2. In the alternative of the operating end where the push rod 3 is located outside the base, the above embodiment exemplarily shows that the first sliding slot 10 penetrates through the side wall of the base 1 where the second dovetail sliding slot 12 is located, and the unlocking can also be achieved by penetrating through the side wall of the base 1 where the first dovetail sliding slot 11 is located through the first sliding slot 10, that is, by pulling the push rod 3 to press the elastic member 4;
3. in the alternative of the specific structure of the elastic member 4, an elastic member such as a plate spring, a rubber block, or a tension spring may be used instead.
In still another embodiment, there is provided a load stage for mounting a photographing apparatus, the load stage including the locking mechanism of the dovetail structure of the above-described embodiment.
In another embodiment, a pan/tilt head is provided, which can be a two-axis or three-axis pan/tilt head, comprising the above-mentioned load-bearing stage, which is connected to a motor of the pan/tilt head.
The utility model has the advantages that:
the utility model provides a locking mechanism, load platform and cloud platform of forked tail structure can convert 3 axial displacements of push rod into the radial displacement of clamping block 2 along the push rod to realize the elasticity of clamping block, has the screw or the cam locking mechanism of spanner among the prior art, can prevent to miss touch the fast-assembling board that the spanner leads to and break away from with the base, damage the shooting equipment, and under the effect of short-time external force, locking mechanism can also get back to the locking state through the elasticity of elastic component; the push rod 3 is further limited to be in a locking position through the structure at the end part of the push rod 3, and the situation that the clamping block 2 cannot lock the quick-mounting plate due to mistaken touch of a user is prevented; and the release of the anti-disengaging structure can be completed through the unlocking operation of the dovetail structure, the operation steps are simple, and the operation space is saved.

Claims (12)

1. A locking mechanism of a dovetail structure comprises a base and a quick-mounting plate, wherein dovetail sliding grooves are formed in two sides of the base, and sliding rails matched with the dovetail sliding grooves are formed in two sides of the quick-mounting plate;
the locking mechanism is characterized by comprising a clamping block, an operating piece and a first elastic piece, wherein the clamping block and the operating piece are provided with a motion conversion mechanism matched with each other;
the clamping block is slidably arranged in the dovetail sliding groove on one side in a penetrating mode, and one end of the operating piece is arranged on the base in a penetrating mode and matched with the clamping block; the motion conversion mechanism converts the axial motion of the operating piece into the radial motion of the clamping block along the operating piece and is used for releasing or pressing the quick-mounting plate; the first elastic member is used for applying resistance to the axial movement of the operating member.
2. The dovetail-structure locking mechanism according to claim 1, wherein the operating member is a push rod, the motion conversion mechanism is a sliding screw fixedly connected with the push rod, and the clamping block is provided with an inclined groove matched with the sliding screw; the dovetail sliding groove on one side is provided with a guide groove for accommodating the clamping block to slide in the vertical direction; the base is provided with a first sliding groove for accommodating the push rod to slide along the axial direction of the base, the clamping block is provided with a second sliding groove for accommodating the push rod to slide along the axial direction of the clamping block and slide along the vertical direction of the clamping block, and the first sliding groove is communicated with the second sliding groove; the inclined groove is formed in the side wall of the second sliding groove and inclines to the vertical direction along the axial direction of the push rod; the first elastic piece is used for applying elastic force of the sliding screw at the first end of the inclined groove.
3. The locking mechanism of a dovetail structure according to claim 2, wherein said first elastic member is a spring, and two ends of said spring are respectively abutted against the push rod and the inner wall of the base.
4. The locking mechanism of a dovetail structure according to claim 2, wherein said push rod includes a first end of the push rod for pushing operation, said first end of the push rod is located outside of the base, and includes a locking knob in threaded connection with the push rod, and an outer diameter of the locking knob is larger than an inner diameter of the first sliding groove.
5. The locking mechanism of a dovetail structure as claimed in claim 4, wherein one end of the locking knob is connected with the external thread of the push rod through an internal thread, and the other end of the locking knob is connected with a gland.
6. The locking mechanism of a dovetail structure of claim 2, wherein said push rod comprises a first end for pushing the push rod and a second end for locking the push rod, said second end comprising a locking knob, a detent screw, a second resilient member and a gland; one end of the locking knob is sleeved at the second end of the push rod, the threaded end of the clamping screw is in threaded connection with the second end of the push rod, and the nut section is clamped and connected with the inner wall of the locking knob; the other end of the locking knob is connected with the gland, and two ends of the second elastic piece are respectively abutted against a nut of the clamping screw and the gland; wherein, the locking knob and the base are provided with matched thread structures.
7. The locking mechanism of a dovetail structure of claim 2, further comprising an anti-disengaging structure, wherein the anti-disengaging structure comprises an anti-disengaging screw and an anti-disengaging baffle located at the bottom of the quick-mounting plate, the first chute upper wall is provided with an anti-disengaging chute which is in the axial direction of the push rod and penetrates through the upper wall of the base, one end of the anti-disengaging screw is connected with the push rod, the other end of the anti-disengaging screw penetrates through the anti-disengaging chute to be matched with the anti-disengaging baffle, and the anti-disengaging baffle is provided with a notch matched with the anti-disengaging screw.
8. The dovetail-structure locking mechanism according to claim 1, wherein the operating member is a push rod, the motion conversion mechanism is a sliding screw fixedly connected with the push rod, and the clamping block is provided with an inclined groove matched with the sliding screw;
the dovetail sliding groove on one side is provided with a guide groove for accommodating the clamping block to slide in the horizontal direction, the base is provided with a first sliding groove for accommodating the push rod to slide along the axial direction of the base, the clamping block is provided with a second sliding groove for accommodating the push rod to slide along the axial direction of the clamping block and slide along the horizontal direction of the push rod, and the first sliding groove is communicated with the second sliding groove; the inclined groove is arranged on one of the lower wall or the upper wall of the second sliding groove, the inclined direction of the inclined groove is inclined towards the dovetail sliding groove on the other side along the axial direction of the push rod, and the sliding screw is fixedly connected with the push rod and slides along the inclined groove; and two ends of the elastic piece are respectively connected with the push rod and the inner wall of the base and used for applying elastic force of one end, far away from the dovetail sliding groove on the other side, of the sliding screw on the chute.
9. The dovetail locking mechanism of claim 8, wherein the push rod is further connected with a bolt screw protruding from the base, and the base is further provided with a bolt sliding groove for accommodating the bolt screw to slide.
10. A locking mechanism of a dovetail structure comprises a base and a quick-mounting plate, wherein dovetail sliding grooves are formed in two sides of the base, and sliding rails matched with the dovetail sliding grooves are formed in two sides of the quick-mounting plate; the locking mechanism is characterized by comprising a clamping block, a push rod and an elastic piece; the dovetail sliding groove on one side is provided with a guide groove for accommodating the clamping block to slide, the base is provided with a first sliding groove for accommodating the push rod to slide along the axial direction of the base, the groove direction of the first sliding groove is the same as the moving direction of the clamping block, and the clamping block is fixedly connected with the push rod; and two ends of the elastic piece are respectively connected with the clamping block and the inner wall of the base and used for applying elastic force of the clamping block moving towards the direction close to the quick mounting plate.
11. A load table comprising a locking mechanism of a dovetail arrangement according to any one of claims 1 to 10.
12. A head, comprising a load table according to claim 11.
CN202021350246.9U 2020-07-10 2020-07-10 Dovetail-structure locking mechanism, loading platform and holder Active CN212960542U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113248116A (en) * 2021-05-26 2021-08-13 彩虹（合肥）液晶玻璃有限公司 Compressing device under thermal state working condition
CN113847871A (en) * 2021-09-27 2021-12-28 湖南翔瑞达科技有限公司 System for determining position of article by using infrared light

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113248116A (en) * 2021-05-26 2021-08-13 彩虹（合肥）液晶玻璃有限公司 Compressing device under thermal state working condition
CN113248116B (en) * 2021-05-26 2022-08-30 彩虹（合肥）液晶玻璃有限公司 Compressing device under thermal state working condition
CN113847871A (en) * 2021-09-27 2021-12-28 湖南翔瑞达科技有限公司 System for determining position of article by using infrared light
CN113847871B (en) * 2021-09-27 2024-03-19 湖南翔瑞达科技有限公司 System for determining position of article by utilizing infrared light

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