Holder base with double-safety-pin mechanism

Abstract

The utility model discloses a holder base with a double-safety-pin mechanism, which comprises a holder main body, a mounting groove with two through ends is arranged on the surface of the holder main body, and a mounting cavity is arranged in the holder main body; the double-safety-pin mechanism comprises a first safety pin and a second safety pin which are movably arranged in the mounting cavity, and a sliding locking assembly which is arranged in the mounting cavity in a sliding manner and is connected between the first safety pin and the second safety pin; the first safety pin can upwards extend out of the groove bottom surface of the mounting groove or can be downwards accommodated in the mounting cavity; the second safety pin can upwards extend out of the groove bottom surface of the mounting groove or downwards be accommodated in the mounting cavity; and under the action of the sliding locking assembly, one of the first safety pin and the second safety pin is always in a state that one upwards extends out of the groove bottom surface of the mounting groove and the other downwards is accommodated in the mounting cavity. The pan-tilt base has the advantages of being capable of being matched with and installing quick release plates of different specifications, high in universality, simple in structure, low in assembly and production cost and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to photography equipment technical field, concretely relates to a holder base with double safety pin mechanism. BACKGROUND

[0002] In the photography work, photography holder is often used to install camera, video camera and other external devices. The photography holder includes holder base, quick mount seat and locking mechanism. The holder base is provided with installation slot penetrating through two ends. The quick mount seat is horizontally slidably installed on the installation slot. When the quick mount seat is horizontally slidably installed in place, the locking mechanism is used to lock the quick mount seat on the installation slot. The quick mount seat is used to install camera, video camera and other external devices.

[0003] The current quick mount seat is slidably embedded in the installation slot along one end of the installation slot, and then the locking mechanism is used to fix the quick mount seat. In order to shoot the scenery in all directions, the camera or video camera often needs to be placed obliquely. At this time, the quick mount seat is easy to fall off from the installation slot, which causes the camera or video camera to be damaged. Therefore, some holder bases are provided with elastic safety pins. The quick mount seat is correspondingly provided with positioning groove matched with the safety pins, so as to prevent the quick mount seat from falling off from the holder base. However, the positioning groove on some customized quick mount seats is different from the positioning groove on the general quick mount seat. The conventional holder base can only match the general quick mount seat, which has low universality and affects the freedom of using external devices.

[0004] In order to improve the universality of the holder base, some holder bases are provided with double safety pin mechanism. The double safety pin mechanism includes two safety pins with different positions and rotating arm linked with the two safety pins. The two safety pins are matched with two different types of quick mount seats. Each safety pin corresponds to an elastic piece for driving the safety pin to extend from the installation slot of the holder base. One of the two safety pins is locked by the rotating arm, so that one of the two safety pins extends from the installation slot of the holder base, and the other is accommodated in the holder base.

[0005] However, the above-mentioned double safety pin mechanism needs to design a relatively complex locking structure between the rotating arm and the two safety pins. In addition, one elastic piece needs to be additionally designed on one side of the rotating arm for driving the rotating arm to rotate to lock at least one safety pin. At least three springs need to be provided in the whole double safety pin mechanism. The overall structure is relatively complex, and the production cost is relatively high. Therefore, a double safety pin mechanism with simple structure and low production cost needs to be designed on the holder base. CONTENT OF THE UTILITY MODEL

[0006] Therefore, the utility model solves the technical problem of overcoming the defects of the double safety pin mechanism on the existing holder base, such as complex structure and high production cost, so as to provide a holder base with double safety pin mechanism.

[0007] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0008] A holder base with double safety pin mechanism, comprising:

[0009] The holder main body is internally provided with an installation cavity corresponding to the bottom position of the installation slot;

[0010] The double safety pin mechanism comprises a first safety pin and a second safety pin movably arranged at different positions in the installation cavity, and a sliding locking assembly slidingly arranged in the installation cavity and transmissionally connected between the first safety pin and the second safety pin; the first safety pin can be upwardly extended from the bottom surface of the installation slot or downwardly accommodated in the installation cavity; the second safety pin can be upwardly extended from the bottom surface of the installation slot or downwardly accommodated in the installation cavity; under the action of the sliding locking assembly, the first safety pin and the second safety pin are always in a state that one is upwardly extended from the bottom surface of the installation slot and the other is downwardly accommodated in the installation cavity.

[0011] By adopting the above technical scheme, when the first safety pin upwardly extended from the bottom surface of the installation slot is pressed downwardly, the first safety pin drives the sliding locking assembly to slide in the installation cavity of the holder main body, and the sliding locking assembly drives the second safety pin to be upwardly extended from the bottom surface of the installation slot from the installation cavity; when the second safety pin upwardly extended from the bottom surface of the installation slot is pressed downwardly, the second safety pin drives the sliding locking assembly to slide in the installation cavity of the holder main body, and the sliding locking assembly drives the first safety pin to be upwardly extended from the bottom surface of the installation slot from the installation cavity, so that it can be ensured that only one safety pin is extended from the bottom surface of the installation slot; since the positions of the first safety pin and the second safety pin extended from the installation slot are different, when different safety pins are extended, different specifications of quick mounting plates can be matched and installed, and the versatility is higher; moreover, the structure that the sliding locking assembly slides back and forth in the installation cavity to push the first safety pin or the second safety pin to move is simpler in structure, has fewer parts and lower assembly and production cost, as compared with the existing double safety pin mechanism with a rotating arm and multiple springs.

[0012] Further, the installation cavity comprises a first installation cavity, a second installation cavity and a third installation cavity in communication with each other, the second installation cavity and the third installation cavity are located on opposite sides of the first installation cavity, and the second installation cavity and the third installation cavity are in communication with the installation slot;

[0013] The first safety pin is movably arranged in the second installation cavity, and the first safety pin has a first extension state of being upwardly extended from the bottom surface of the installation slot and a first accommodation state of being downwardly accommodated in the second installation cavity.

[0014] The second safety pin is arranged in the third installation cavity, and has a second extended state of extending upward from the bottom surface of the installation groove and a second storage state of being stored in the third installation cavity;

[0015] The sliding locking assembly is arranged in the first installation cavity;

[0016] When the first safety pin is switched from the first extended state to the first storage state, the first safety pin drives the sliding locking assembly to slide into the third installation cavity, and the sliding locking assembly drives the second safety pin to switch from the second storage state to the second extended state; when the second safety pin is switched from the second extended state to the second storage state, the second safety pin drives the sliding locking assembly to slide into the second installation cavity, and the sliding locking assembly drives the first safety pin to switch from the first storage state to the first extended state.

[0017] Further, the cavity wall of the first installation cavity is provided with a first stop groove and a second stop groove; the sliding locking assembly comprises a sliding block arranged in the first installation cavity and a stop member elastically connected to the sliding block; the stop member moves between the first stop groove and the second stop groove along with the sliding of the sliding block; when the stop member moves to a position corresponding to the first stop groove, the stop member at least partially extends into the first stop groove under the action of the elastic member, and the first safety pin is locked in the first extended state; when the stop member moves to a position corresponding to the second stop groove, the stop member at least partially extends into the second stop groove under the action of the elastic member, and the second safety pin is locked in the second extended state.

[0018] By adopting the above technical scheme, the first stop groove and the second stop groove are arranged, when the stop member moves to a position corresponding to the first stop groove, the stop member extends into the first stop groove under the action of the elastic member, and the first safety pin can be locked in the first extended state of extending upward from the bottom surface of the installation groove; when the stop member moves to a position corresponding to the second stop groove, the stop member extends into the second stop groove under the action of the elastic member, and the second safety pin can be locked in the second extended state of extending upward from the bottom surface of the installation groove; the locking of the first safety pin or the second safety pin is realized by using one stop member and one elastic member, the required parts for locking the safety pin are less, the overall structure is simpler, and the manufacturing is easier.

[0019] Further, the first stop groove and the second stop groove are both semispherical grooves, and the stop member is a ball or a semisphere.

[0020] By adopting the technical scheme, the first stop recess and the second stop recess are both semispherical recesses, and the stop piece is in the structure of a ball or a hemisphere, so that the stop piece is facilitated to slide out of the first stop recess or the second stop recess under the action of an external force, and the first stop recess or the second stop recess can form a certain sliding resistance on the sliding block but not completely lock the sliding block.

[0021] Further, the sliding block is provided with a movable cavity with an opening at one end, and the elastic piece is arranged in the movable cavity, and the elastic force of the elastic piece drives the stop piece to extend outward from the opening of the movable cavity.

[0022] Further, the side of the sliding block close to the first mounting cavity is provided with a first inclined block, and the first inclined surface is arranged upward on the first inclined block; the side of the sliding block close to the second mounting cavity is provided with a second inclined block, and the second inclined surface is arranged upward on the second inclined block; the first safety pin comprises a first safety block slidingly arranged in the second mounting cavity, and the first safety block is provided with a third inclined surface matched with the first inclined surface; the second safety pin comprises a second safety block slidingly arranged in the third mounting cavity, and the second safety pin is provided with a fourth inclined surface matched with the second inclined surface.

[0023] By adopting the technical scheme, the two sides of the sliding block are respectively provided with the inclined surface matching structure to convert the horizontal sliding of the sliding block into the vertical movement transmission form of the first safety block or the second safety block, and the structure is simple and easy to realize.

[0024] Further, the first inclined block is provided with a first recess recessed inward from the first inclined surface, and the second inclined block is provided with a second recess recessed inward from the first inclined surface.

[0025] By adopting the technical scheme, the first recess on the first inclined block and the second recess on the second inclined block can reduce the inclined surface contact area of the sliding block and the first safety block or the second safety block, reduce the inclined surface friction resistance, and facilitate the inclined surface transmission.

[0026] Further, the bottom of the holder main body is detachably connected with a bottom plate, the bottom plate and the holder main body enclose to form the mounting cavity, and the sliding locking assembly is arranged on the bottom plate.

[0027] Further, one of the bottom plate and the first safety pin is provided with a first magnetic metal sheet, and the other is provided with a first magnet arranged in position corresponding to the first magnetic metal sheet; one of the bottom plate and the second safety pin is provided with a second magnetic metal sheet, and the other is provided with a second magnet arranged in position corresponding to the second magnetic metal sheet.

[0028] By adopting the technical scheme, when the pushing force of the sliding block on the first safety pin disappears, the first magnet can attract the first magnetic metal sheet, so that the first safety pin and the bottom plate are tightly abutted, and the first safety pin is prevented from loosening; when the pushing force of the sliding block on the second safety pin disappears, the second magnet can attract the second magnetic metal sheet, so that the second safety pin and the bottom plate are tightly abutted, and the second safety pin is prevented from loosening.

[0029] Further, the bottom plate is provided with a first bottom plate groove and a second bottom plate groove, the first magnetic metal sheet is embedded in the first bottom plate groove, and the second magnetic metal sheet is embedded in the second bottom plate groove; the first safety pin is provided with a first groove, and the first magnet is embedded and fixed in the first groove; the second safety pin is provided with a second groove, and the second magnet is embedded and fixed in the second groove.

[0030] In summary, the technical scheme of the utility model has the following advantages: the first safety pin and the second safety pin of the double safety pin mechanism can ensure that only one slot bottom surface of the installation slot is extended, so that the quick mounting plate of different specifications can be matched and installed, and the universality is higher; moreover, the sliding locking assembly slides back and forth in the installation cavity to push the first safety pin or the second safety pin to move, and compared with the existing double safety pin mechanism adopting a rotating arm and multiple springs, more springs do not need to be arranged, the structure is simpler, the parts are fewer, and the assembly and production cost are lower. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0032] Figure 1 It is a connection relationship schematic view of the gimbal base and the quick mounting plate in the embodiment of the utility model;

[0033] Figure 2 It is a front view schematic view of the gimbal base in the embodiment of the utility model;

[0034] Figure 3 It is a back view schematic view of the gimbal base in the embodiment of the utility model;

[0035] Figure 4 It is a sectional view of the gimbal base in the embodiment of the utility model;

[0036] Figure 5 It is an explosion view of the double safety pin mechanism in the gimbal base in the embodiment of the utility model;

[0037] Figure 6 It is the schematic view of the installation cavity on the holder main body in the embodiment of the utility model;

[0038] Figure 7 It is the schematic view of the position relation of the sliding block, the first safety pin and the second safety pin in the installation cavity in the embodiment of the utility model;

[0039] Figure 8 It is the schematic view of the connection structure of the sliding block, the first safety pin and the second safety pin in the embodiment of the utility model;

[0040] Figure 9 It is the schematic view of the installation structure of the bottom plate and the magnetic metal sheet in the embodiment of the utility model.

[0041] Mark 1, holder main body; 101, installation groove; 102, installation cavity; 102a, first installation cavity; 102b, second installation cavity; 102c, third installation cavity; 103, first stop recess; 104, second stop recess; 2, quick mounting plate; 3, locking mechanism; 31, locking block; 4, first safety pin; 41, first safety block; 411, third inclined surface; 412, first recess; 5, second safety pin; 51, second safety block; 511, fourth inclined surface; 512, second recess; 6, sliding locking assembly; 61, sliding block; 62, stop piece; 63, elastic piece; 611, first inclined block; 6111, first inclined surface; 6112, first recess part; 612, second inclined block; 6121, second inclined surface; 6122, second recess part; 7, bottom plate; 71, first bottom plate recess; 72, second bottom plate recess; 81, first magnetic metal sheet; 82, second magnetic metal sheet; 91, first magnet; 92, second magnet. DETAILED DESCRIPTION

[0042] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0043] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] As Figure 1 And Figure 2 A photographic tripod shown in the drawing, including tripod base, quick mounting seat and locking mechanism 3, the mounting groove 101 is provided with two ends through the tripod base, the quick mounting seat is horizontally slidably installed on the mounting groove 101, the locking mechanism 3 includes locking block 31 on one side of the mounting groove 101 and the buckle assembly (not shown in the drawing) driving locking block 31 movement. When the quick mounting seat is horizontally slid to the position, the buckle assembly is rotated, the buckle assembly drives locking block 31 to move to the mounting groove 101, the locking block 31 locks the quick mounting seat on the mounting groove 101;The quick mounting seat is used for installing camera, video camera and other external devices.

[0046] It needs to be explained that the specific structure form of the buckle assembly is prior art, and it is not the application point of the application, which is not described here. The specific structure and implementation mode of the buckle assembly can refer to the buckle assembly in the patent with the announcement number CN221323905U.

[0047] As Figure 2 - Figure 9As shown, the holder base comprises a holder main body 1 and a double safety pin mechanism. The front of the holder main body 1 is provided with a mounting groove 101 penetrating at both ends, and the inside of the holder main body 1 is provided with a mounting cavity 102 corresponding to the bottom position of the mounting groove 101. The double safety pin mechanism comprises a first safety pin 4 and a second safety pin 5 movably arranged at different positions of the mounting cavity 102, and a sliding locking assembly 6 slidingly arranged in the mounting cavity 102 and drivingly connected between the first safety pin 4 and the second safety pin 5. The first safety pin 4 can be upwardly extended from the groove bottom surface of the mounting groove 101 or downwardly accommodated in the mounting cavity 102; the second safety pin 5 can be upwardly extended from the groove bottom surface of the mounting groove 101 or downwardly accommodated in the mounting cavity 102; the first safety pin 4 and the second safety pin 5 are always in a state of one upwardly extending from the groove bottom surface of the mounting groove 101 and the other downwardly accommodating in the mounting cavity 102 under the action of the sliding locking assembly 6.

[0048] When the first safety pin 4 upwardly extended from the groove bottom surface of the mounting groove 101 is pressed downwardly, the first safety pin 4 drives the sliding locking assembly 6 to slide in the mounting cavity 102 of the holder main body 1, and the sliding locking assembly 6 drives the second safety pin 5 to upwardly extend from the groove bottom surface of the mounting groove 101 in the mounting cavity 102; when the second safety pin 5 upwardly extended from the groove bottom surface of the mounting groove 101 is pressed downwardly, the second safety pin 5 drives the sliding locking assembly to slide in the mounting cavity 102 of the holder main body 1, and the sliding locking assembly 6 drives the first safety pin 4 to upwardly extend from the groove bottom surface of the mounting groove 101 in the mounting cavity 102, so as to ensure that only one of the first safety pin 4 and the second safety pin 5 extends from the groove bottom surface of the mounting groove 101, and since the positions of the first safety pin 4 and the second safety pin 5 extending from the mounting groove 101 are different, different specifications of quick mounting plates 2 can be matched when different safety pins extend, and the universality is higher. Moreover, the structure of the sliding locking assembly sliding back and forth in the mounting cavity 102 to push the first safety pin 4 or the second safety pin 5 to move is simpler in structure, has fewer parts, and is lower in assembly and production cost, compared with the existing double safety pin mechanism adopting a rotating arm + multiple springs.

[0049] In the embodiment, the mounting cavity 102 comprises a first mounting cavity 102a, a second mounting cavity 102b and a third mounting cavity 102c which are in communication with each other, the second mounting cavity 102b and the third mounting cavity 102c are located at opposite sides of the first mounting cavity 102a, and the second mounting cavity 102b and the third mounting cavity 102c are both in communication with the mounting groove 101. The first safety pin 4 is movably arranged in the second mounting cavity 102b along the thickness direction of the gimbal base, the first safety pin 4 has a first extended state of extending upward from the groove bottom surface of the mounting groove 101 and a first accommodation state of being accommodated downward in the second mounting cavity 102b. The second safety pin 5 is movably arranged in the third mounting cavity 102c along the thickness direction of the gimbal body 1, the second safety pin 5 has a second extended state of extending upward from the groove bottom surface of the mounting groove 101 and a second accommodation state of being accommodated downward in the third mounting cavity 102c. The sliding locking assembly 6 is slidably arranged in the first mounting cavity 102a along the groove width direction or the groove length direction of the mounting groove 101 on the gimbal base. When the first safety pin 4 is switched from the first extended state to the first accommodation state, the first safety pin 4 drives the sliding locking assembly to slide into the third mounting cavity 102c, and the sliding locking assembly drives the second safety pin 5 to switch from the second accommodation state to the second extended state; when the second safety pin 5 is switched from the second extended state to the second accommodation state, the second safety pin 5 drives the sliding locking assembly to slide into the second mounting cavity 102b, and the sliding locking assembly drives the first safety pin 4 to switch from the first accommodation state to the first extended state.

[0050] In the embodiment, the cavity wall of the first mounting cavity 102a is provided with a first stop recess 103 and a second stop recess 104. The sliding locking assembly comprises a sliding block 61 slidingly arranged in the first mounting cavity 102a and a stop piece 62 elastically connected to the sliding block 61, the stop piece 62 moving between the first stop recess 103 and the second stop recess 104 along with the sliding of the sliding block 61; the sliding block 61 is provided with a movable cavity with an open end, the movable cavity is provided with an elastic piece 63, one end of the elastic piece 63 abutting against the bottom wall of the movable cavity, the other end of the elastic piece 63 abutting against the stop piece 62, and the elastic force of the elastic piece 63 drives the stop piece 62 to extend outward from the opening of the movable cavity. When the stop piece 62 moves to a position corresponding to the first stop recess 103, the stop piece 62 at least partially extends into the first stop recess 103 under the action of the elastic piece 63, and the first safety pin 4 is locked in the first extended state; when the stop piece 62 moves to a position corresponding to the second stop recess 104, the stop piece 62 at least partially extends into the second stop recess 104 under the action of the elastic piece 63, and the second safety pin 5 is locked in the second extended state. By providing the first stop recess 103 and the second stop recess 104 on the cavity wall of the first mounting cavity 102a, when the stop piece 62 moves to a position corresponding to the first stop recess 103, the stop piece 62 extends into the first stop recess 103 under the action of the elastic piece 63, and the first safety pin 4 can be locked in the first extended state of extending upward from the bottom surface of the mounting groove 101; when the stop piece 62 moves to a position corresponding to the second stop recess 104, the stop piece 62 extends into the second stop recess 104 under the action of the elastic piece 63, and the second safety pin 5 can be locked in the second extended state of extending upward from the bottom surface of the mounting groove 101; the locking of the first safety pin 4 or the second safety pin 5 can be realized by using one stop piece 62 and one elastic piece 63, the required parts for locking the safety pin are less, the overall structure is simpler, and the manufacturing is easier.

[0051] In some embodiments of the embodiment, the first stop recess 103 and the second stop recess 104 are both semispherical recesses, and the stop piece 62 is a ball or a semisphere. In this way, the stop piece 62 is facilitated to slide out of the first stop recess 103 or the second stop recess 104 under the action of an external force, so that the first stop recess 103 or the second stop recess 104 can form a certain sliding resistance to the sliding block 61 but not completely lock the sliding block 61.

[0052] In the embodiment, the sliding block 61 is provided with a first inclined block 611 near one side of the first mounting cavity 102a, and the first inclined surface 6111 is provided upward on the first inclined surface 6111; the sliding block 61 is provided with a second inclined block 612 near one side of the second mounting cavity 102b, and the second inclined surface 6121 is provided upward on the second inclined surface 6121; the first safety pin 4 includes a first safety block 41 slidably arranged in the second mounting cavity 102b, and the first safety block 41 is provided with a third inclined surface 411 matched with the first inclined surface 6111; the second safety pin 5 includes a second safety block 51 slidably arranged in the second mounting cavity 102b, and the second safety pin 5 is provided with a fourth inclined surface 511 matched with the second inclined surface 6121. The inclined surface matching structure on both sides of the sliding block 61 converts the horizontal sliding of the sliding block 61 into the vertical movement of the first safety block 41 or the second safety block 51, which is simple in structure and easy to realize. Specifically, the first inclined block 611 and the second inclined block 612 are located at opposite ends in the length direction of the sliding block 61, but the first inclined block 611 and the second inclined block 612 are arranged in a staggered manner along the length direction of the sliding block 61.

[0053] In some embodiments of the embodiment, the first inclined block 611 is provided with a first recess 6112 recessed inward from the first inclined surface 6111, and the second inclined block 612 is provided with a second recess 6122 recessed inward from the first inclined surface 6111. The first recess 6112 on the first inclined block 611 and the second recess 6122 on the second inclined block 612 can reduce the inclined surface contact area of the sliding block 61 and the first safety block 41 or the second safety block 51, reduce the inclined surface friction resistance, and facilitate the inclined surface transmission.

[0054] In some embodiments of the embodiment, the bottom of the holder main body 1 is detachably connected with a bottom plate 7 through a plurality of screws, the bottom plate 7 and the holder main body 1 form a mounting cavity 102, and the sliding block 61 is arranged on the bottom plate 7. The mounting cavity 102 formed by the cooperation of the bottom plate 7 and the holder main body 1 is convenient for manufacturing and convenient for the installation of the sliding block 61, the first safety pin 4 and the second safety pin 5 in the mounting cavity 102.

[0055] In some embodiments of the present embodiment, the bottom plate 7 is provided with a first bottom plate groove 71 and a second bottom plate groove 72, the first magnetic metal sheet 81 is embedded and fixed in the first bottom plate groove 71, and the second magnetic metal sheet 82 is embedded and fixed in the second bottom plate groove 72; the first magnetic metal sheet 81 and the second magnetic metal sheet 82 can be iron sheets. The first safety block 41 is provided with a first groove 412 corresponding to the position of the first bottom plate groove 71, and the second safety block 51 is provided with a second groove 512 corresponding to the position of the second bottom plate groove 72; the first magnet 91 is embedded and fixed in the first groove 412, and the second magnet 92 is embedded and fixed in the second groove 512. When the pushing force of the sliding block 61 on the first safety block 41 disappears, the first magnet 91 can attract the first magnetic metal sheet 81, so that the first safety block 41 and the bottom plate 7 are tightly abutted, preventing the first safety block 41 from loosening; when the pushing force of the sliding block 61 on the second safety block 51 disappears, the second magnet 92 can attract the second magnetic metal sheet 82, so that the second safety block 51 and the bottom plate 7 are tightly abutted, preventing the second safety block 51 from loosening.

[0056] In summary, the gimbal base with the double safety pin mechanism provided by the embodiments of the present application can ensure that only one of the first safety pin 4 and the second safety pin 5 of the double safety pin mechanism protrudes from the bottom surface of the mounting groove 101, so that the quick mounting plate 2 of different specifications can be matched and installed, and the universality is higher. Moreover, the structure that the sliding block 61 slides back and forth in the mounting cavity 102 to push the first safety pin 4 or the second safety pin 5 to move, compared with the existing double safety pin mechanism using a rotating arm and multiple springs, does not need to set more springs, and the structure is simpler, the parts are fewer, and the assembly and production cost is lower.

[0057] Obviously, the above embodiments are only examples for clearly illustrating, but not limiting the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A gimbal base with a double safety pin mechanism, characterized in that, The pan-tilt main body (1) is provided with a mounting groove (101) penetrating through both ends of the surface, and the inside of the pan-tilt main body (1) is provided with a mounting cavity (102) corresponding to the bottom position of the mounting groove (101); The double safety pin mechanism comprises a first safety pin (4) and a second safety pin (5) movably arranged at different positions in the mounting cavity (102), and a sliding locking assembly (6) slidingly arranged in the mounting cavity (102) and drivingly connected between the first safety pin (4) and the second safety pin (5); the first safety pin (4) can be upwardly extended from the groove bottom surface of the mounting groove (101) or downwardly accommodated in the mounting cavity (102); the second safety pin (5) can be upwardly extended from the groove bottom surface of the mounting groove (101) or downwardly accommodated in the mounting cavity (102); the first safety pin (4) and the second safety pin (5) are always in a state of one being upwardly extended from the groove bottom surface of the mounting groove (101) and the other being downwardly accommodated in the mounting cavity (102) under the action of the sliding locking assembly (6). The mounting cavity (102) comprises a first mounting cavity (102a), a second mounting cavity (102b) and a third mounting cavity (102c) which are in communication with each other, the second mounting cavity (102b) and the third mounting cavity (102c) are located on opposite sides of the first mounting cavity (102a), and the second mounting cavity (102b) and the third mounting cavity (102c) are in communication with the mounting groove (101); 2. The dual safety pin mechanism gimbal base according to claim 1, wherein, The first safety pin (4) is movably arranged in the second mounting cavity (102b), and the first safety pin (4) has a first extension state of upwardly extending from the groove bottom surface of the mounting groove (101) and a first accommodation state of downwardly accommodating in the second mounting cavity (102b); The second safety pin (5) is movably arranged in the third mounting cavity (102c), and the second safety pin (5) has a second extension state of upwardly extending from the groove bottom surface of the mounting groove (101) and a second accommodation state of downwardly accommodating in the third mounting cavity (102c); The sliding locking assembly (6) is slidingly arranged in the first mounting cavity (102a); When the first safety pin (4) is switched from the first extension state to the first accommodation state, the first safety pin (4) drives the sliding locking assembly (6) to slide into the third mounting cavity (102c), and the sliding locking assembly drives the second safety pin (5) to switch from the second accommodation state to the second extension state; when the second safety pin (5) is switched from the second extension state to the second accommodation state, the second safety pin (5) drives the sliding locking assembly (6) to slide into the second mounting cavity (102b), and the sliding locking assembly (6) drives the first safety pin (4) to switch from the first accommodation state to the first extension state. ​ 3. The dual safety pin mechanism gimbal base according to claim 2, wherein, The cavity wall of the first mounting cavity (102a) is provided with a first stop recess (103) and a second stop recess (104); the sliding locking assembly (6) comprises a sliding block (61) slidingly arranged in the first mounting cavity (102a) and a stop piece (62) elastically connected to the sliding block (61); the stop piece (62) moves between the first stop recess (103) and the second stop recess (104) along with the sliding of the sliding block (61); when the stop piece (62) moves to a position corresponding to the first stop recess (103), the stop piece (62) at least partially extends into the first stop recess (103) under the action of an elastic member (63), and the first safety pin (4) is locked in a first extended state; When the stop piece (62) moves to a position corresponding to the second stop recess (104), the stop piece (62) at least partially extends into the second stop recess (104) under the action of the elastic member (63), and the second safety pin (5) is locked in a second extended state.

4. The dual safety pin mechanism gimbal base according to claim 3, wherein, The first stop recess (103) and the second stop recess (104) are both semispherical recesses, and the stop piece (62) is a ball or a hemisphere.

5. The dual safety pin mechanism gimbal base according to claim 3, wherein, The sliding block (61) is provided with a movable cavity with an open end, the elastic member (63) is arranged in the movable cavity, and the elastic force of the elastic member (63) drives the stop piece (62) to extend outward from the opening of the movable cavity.

6. The dual safety pin mechanism gimbal base according to claim 3, wherein, The side of the sliding block (61) close to the first mounting cavity (102a) is provided with a first inclined block (611) provided with a first inclined surface (6111) upwardly arranged, and the side of the sliding block (61) close to the second mounting cavity (102b) is provided with a second inclined block (612) provided with a second inclined surface (6121) upwardly arranged; the first safety pin (4) comprises a first safety block (41) slidingly arranged in the second mounting cavity (102b), and the first safety block (41) is provided with a third inclined surface (411) matched with the first inclined surface (6111); the second safety pin (5) comprises a second safety block (51) slidingly arranged in the third mounting cavity (102c), and the second safety pin (5) is provided with a fourth inclined surface (511) matched with the second inclined surface (6121).

7. A dual safety pin mechanism gimbal base according to claim 6, wherein, The first inclined block (611) is provided with a first recess (6112) recessed inwardly from the first inclined surface (6111), and the second inclined block (612) is provided with a second recess (6122) recessed inwardly from the first inclined surface (6111).

8. The dual safety pin mechanism gimbal base of claim 1, wherein, The bottom of the holder main body (1) is detachably connected with a bottom plate (7), the bottom plate (7) and the holder main body (1) enclose the mounting cavity (102), and the sliding locking assembly (6) is arranged on the bottom plate (7).

9. The dual insurance pin mechanism gimbal base according to claim 8, wherein, One of the bottom plate (7) and the first safety pin (4) is provided with a first magnetic metal sheet (81), and the other is provided with a first magnet (91) arranged in position corresponding to the first magnetic metal sheet (81); one of the bottom plate (7) and the second safety pin (5) is provided with a second magnetic metal sheet (82), and the other is provided with a second magnet (92) arranged in position corresponding to the second magnetic metal sheet (82).

10. The dual insurance pin mechanism gimbal base according to claim 9, wherein, The bottom plate (7) is provided with a first bottom plate groove (71) and a second bottom plate groove (72), the first magnetic metal sheet (81) is embedded in the first bottom plate groove (71), and the second magnetic metal sheet (82) is embedded in the second bottom plate groove (72); the first safety pin (4) is provided with a first groove (412), and the first magnet (91) is embedded and fixed in the first groove (412); the second safety pin (5) is provided with a second groove (512), and the second magnet (92) is embedded and fixed in the second groove (512).

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