Supporting foot stool

Abstract

The utility model discloses a supporting foot stool which comprises a foot stool main body, a ball body and a ball body swinging locking mechanism, wherein the upper end of the foot stool main body is provided with a rotating cavity; the ball body is rotatably arranged in the rotating cavity; the ball swing locking mechanism comprises a locking assembly in sliding fit with the foot stool body, a reset elastic piece located between the locking assembly and the foot stool body, and a limiting assembly connected to the foot stool body and provided with a movable pin matched with the locking assembly. When the locking assembly slides under external force, the movable pin can move and be positioned to a locking position or an unlocking position; in the locking position, the locking assembly abuts against the ball body to limit axis swinging of the ball body; and in the unlocking locking position, the locking assembly loosens the ball body to allow the ball body to swing. According to the design, the locking assembly is pressed downwards and then loosened, and the ball body can swing at will; after the locking assembly is pressed downwards again, the locking assembly is loosened, and the ball keeps vertical and cannot swing at will; the ball body can be locked in the vertical direction or loosened only through one-time operation, and operation is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic auxiliary equipment, and particularly relates to a support tripod. Background Art

[0002] In the field of photographic equipment, a tripod mainly includes a base located at the center and three legs connected to the outer periphery of the base; an external connection component is provided above the base, and a monopod is connected to the external connection component. A sphere is connected to the lower end of the external connection component, and the sphere is rotatably connected to an installation cavity inside the base. A locking mechanism for locking the sphere inside the base is further provided on the base, and a foot pedal for driving the locking mechanism to move is provided outside the base.

[0003] After an operator completes photographic operations using the tripod and the monopod on it, the monopod usually needs to be kept in a vertical state to prevent the monopod and the photographic equipment on it from falling. The traditional operation method is as follows: First, adjust the monopod to a vertical state and then squat down to control the locking mechanism, and the locking mechanism locks the sphere to ensure that the monopod does not fall down. This traditional operation method requires the operator to squat down to control the locking mechanism, which is not only time-consuming and laborious, but also when the traditional locking mechanism locks the sphere, it is very easy to cause the sphere to rotate, and then cause the monopod to deviate from the vertical direction. It is often necessary to repeatedly control the locking mechanism to perform locking actions and unlocking actions multiple times to keep the monopod in a vertical state, and the operation is relatively laborious. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the present utility model is to overcome the defect that the locking operation of the sphere on the tripod in the prior art is relatively laborious, so as to provide a support tripod.

[0005] To solve the above technical problem, the technical solution of the present utility model is as follows:

[0006] A support tripod includes a tripod main body with a rotation cavity at the upper end, a sphere limited within the spherical surface formed by the rotation cavity and rotatably arranged relative to the rotation cavity, and a sphere swing locking mechanism arranged inside the tripod main body and

[0007] used for locking or unlocking the sphere; the sphere swing locking mechanism includes;

[0008] a locking component, which is slidably matched with the tripod main body;

[0009] a reset elastic member, which is elastically arranged between the locking component and the tripod main body;

[0010] a limiting component, which is connected to the tripod main body, and the limiting component is provided with a movable pin cooperating with the locking component (4);

[0011] When the locking assembly slides under an external force, the movable pin can move relative to the locking assembly and be positioned at the locking position or unlocking position on the locking assembly;

[0012] At the locking position, the locking assembly presses against the sphere to limit the swinging of the sphere relative to the axis of the tripod body; at the unlocking position, the locking assembly releases the sphere to allow the sphere to swing relative to the axis of the tripod body.

[0013] By adopting the above technical solution, when it is necessary to lock the sphere on the support tripod so that the sphere and the external components connected thereto maintain a stable state, after pressing down the locking assembly and then releasing it, the movable pin moves relative to the locking assembly and is positioned at the locking position of the locking assembly. At this time, the locking assembly presses against the sphere, and the sphere cannot swing relative to the axis of the tripod body. Since the size of the reset elastic member can be designed to be relatively large, the locking force exerted by the locking assembly on the sphere under the action of the reset elastic member is also relatively large, and the locking effect of the sphere is relatively good; when it is necessary to allow the sphere to swing relative to the axis of the tripod body, press down the locking assembly again and then release it, the movable pin moves relative to the locking assembly and is positioned at the unlocking position of the locking assembly, and the sphere can swing relative to the axis of the tripod body. The sphere locking operation and sphere unlocking operation of the support tripod are both very simple and easy to perform.

[0014] Further, when the locking assembly slides downward under an external force, the movable pin can alternately move relative to the locking assembly to the first movable position and the second movable position on the locking assembly; the locking assembly can move the movable pin from the first movable position to the locking position or from the second movable position to the unlocking position under the action of the reset elastic member.

[0015] Further, a limiting assembly is further provided in the tripod body. The limiting assembly is axially fixed relative to the tripod body and is rotationally provided relative to the circumferential direction. The movable pin is movably connected to the outer periphery of the limiting assembly along the radial direction of the limiting assembly.

[0016] Further, a limiting elastic member is provided between the limiting assembly and the movable pin. The limiting elastic member is used to drive one end of the movable pin to extend out of the outer wall surface of the limiting assembly along the radial direction of the limiting assembly. A guiding chute is provided on the inner wall surface of the locking assembly, and the end of the movable pin extending out of the limiting assembly extends into the guiding chute.

[0017] By adopting the above technical solution, the locking assembly can drive the limiting assembly to rotate around its own axis through the movable pin. At the same time, the movable pin can move along the radial direction of the limiting assembly. With such a setting, the movable pin can lock the locking assembly at the locking position or unlock the locking position. Moreover, the setting of the guiding chute on the inner wall of the locking assembly can restrict the movement direction of the movable pin, and enable the movable pin to slide from the first movable position to the locking position and slide from the second movable position to the unlocking position, realizing the easy-to-operate function that after the locking assembly of the support leg is pressed down once and then released, the sphere can swing arbitrarily; after the locking assembly is pressed down again and then released, the sphere can only be in the vertical state and cannot swing arbitrarily. Moreover, the structure is simple and easy to implement.

[0018] Further, the locking position, the unlocking position, the first movable position, and the second movable position are located at different positions on the guiding chute; in the axial direction of the locking assembly, the distance between the locking position and the sphere is greater than the distance between the first movable position and the sphere, the distance between the unlocking position and the sphere is greater than the distance between the second movable position and the sphere, and the distance between the locking position and the sphere is greater than the distance between the unlocking position and the sphere;

[0019] When the movable pin is at the locking position and the locking assembly is not subjected to a downward pressing force, the movable pin and the locking assembly abut against each other along the axis of the locking assembly to limit the movement of the movable pin from the locking position to the first movable position;

[0020] When the movable pin is at the locking position and the locking assembly is subjected to a downward pressing force, the movable pin moves from the locking position to the second movable position, and the movable pin abuts against the locking assembly to define the first downward movement stroke of the locking assembly;

[0021] When the movable pin is at the second movable position and the downward pressing force applied to the locking assembly disappears, the locking assembly moves upward under the elastic restoring force of the reset elastic member, the movable pin moves from the second movable position to the unlocking position, and the movable pin and the locking assembly abut against each other along the axis of the locking assembly to limit the movement of the movable pin from the unlocking position to the second movable position;

[0022] When the movable pin is at the unlocking position and the locking assembly is subjected to a downward pressing force, the movable pin moves from the unlocking position to the first movable position, and the movable pin abuts against the locking assembly to define the second downward movement stroke of the locking assembly.

[0023] By adopting the above technical solution, the provision of the locking and unlocking lock positions, the first active position, and the second active position on the guiding chute enables the locking assembly to be locked at the locking and unlocking lock positions, and enables the locking assembly to automatically move from the first active position to the locking lock position and from the second active position to the unlocking lock position under the action of the reset elastic member.

[0024] Further, the guiding chute includes a first strip-shaped groove, a second strip-shaped groove, a first spiral groove, and a second spiral groove. The length directions of the first strip-shaped groove and the second strip-shaped groove are both parallel to the axial direction of the tripod body. Two ends of the first spiral groove are respectively communicated with the first strip-shaped groove and the second strip-shaped groove, and two ends of the second spiral groove are respectively communicated with the first strip-shaped groove and the second strip-shaped groove.

[0025] By adopting the above technical solution, the guiding chute composed of the first strip-shaped groove, the second strip-shaped groove, the first spiral groove, and the second spiral groove has a simple structure and is easy to implement.

[0026] Further, the groove depth of the end of the first spiral groove connected to the first strip-shaped groove is greater than the groove depth of the first strip-shaped groove, so that the movable pin slides along the first spiral groove to the second strip-shaped groove; the groove depth of the end of the second spiral groove connected to the second strip-shaped groove is greater than the groove depth of the second strip-shaped groove, so that the movable pin slides along the second spiral groove to the first strip-shaped groove.

[0027] Further, the first active position and the locking lock position are located at opposite ends of the first strip-shaped groove, and the second active position and the unlocking lock position are located at opposite ends of the second strip-shaped groove.

[0028] By adopting the above technical solution, when the external component on the supporting leg is in a vertical state, at this time, the movable pin is located at the connection of the first spiral groove and the first strip-shaped groove. When the locking component is pressed down, during the downward movement of the locking component, because the groove depth at the connection end of the first spiral groove and the first strip-shaped groove is greater than the groove depth of the first strip-shaped groove, the movable pin can only move along the first spiral groove. Under the action of the inclined groove force, the limiting component will rotate. At this time, the movable pin will move until it reaches the connected end of the first spiral groove and the second strip-shaped groove, and then the movable pin will move to the upper end of the second strip-shaped groove. At this time, the locking component cannot be pressed down any further. Release the locking component, and the locking component moves to the lower end of the second strip-shaped groove under the action of the reset elastic member and is locked by the movable pin. At this time, the locking protrusion will disengage from the sphere, and the sphere is in an unlocked state and can swing freely in the rotation cavity. Press down the locking component again. During the downward movement of the locking component, because the groove depth at the connection end of the second spiral groove and the second strip-shaped groove is greater than the groove depth of the second strip-shaped groove, the movable pin can only move along the second spiral groove. Under the action of the inclined groove force, the limiting component will rotate. At this time, the movable pin will move to the upper end of the first strip-shaped groove. At this time, the locking component cannot be pressed down any further. Release the locking component, and the locking component moves to the lower end of the first strip-shaped groove under the action of the reset elastic member and is locked by the movable pin. At this time, the locking component will move in the direction close to the sphere until the locking protrusion enters the jack in the sphere, thereby locking the sphere and keeping the sphere in a vertical state.

[0029] Further, the first strip-shaped groove, the first spiral groove, the second strip-shaped groove, and the second spiral groove are sequentially arranged along the circumferential direction of the inner wall surface of the locking component;

[0030] When the number of the guiding sliding grooves is one group, the first strip-shaped groove and the second spiral groove are connected end to end, and the guiding sliding groove penetrates along the circumferential direction of the inner wall surface of the locking component;

[0031] When the number of the guiding sliding grooves is multiple groups, multiple groups of the guiding sliding grooves are uniformly arranged along the circumferential direction of the inner wall surface of the locking component; the first strip-shaped groove of the previous group of the guiding sliding grooves is connected to the second spiral groove of the next group of the guiding sliding grooves, and multiple groups of the guiding sliding grooves penetrate along the circumferential direction of the inner wall surface of the locking component; the movable pin can slide alternately in multiple groups of the guiding sliding grooves.

[0032] Further, the locking component includes an outer sleeve and an inner sleeve coaxially arranged with the leg body. The outer sleeve is slidably matched with the leg body, and the inner sleeve is fixed inside the outer sleeve; the guiding sliding groove is arranged on the inner wall surface of the inner sleeve.

[0033] By adopting the above technical solution, the locking component is made in a split manner consisting of an outer sleeve and an inner sleeve and then assembled together, which makes the processing of the locking component more convenient.

[0034] Further, the inner sleeve is formed by splicing a plurality of arc-shaped sheets end to end.

[0035] By adopting the above technical solution, the inner sleeve is formed by splicing a plurality of arc-shaped sheets end to end, which reduces the difficulty of machining the above-mentioned guiding chute in the inner sleeve.

[0036] Further, a plurality of positioning pins are provided at the end of the inner sleeve, and the outer sleeve is provided with positioning holes that cooperate with the plurality of positioning pins.

[0037] Further, the mating surface of the outer sleeve and the tripod body is of a special-shaped cross-section.

[0038] By adopting the above technical solution, the mating surface of the outer sleeve and the tripod body is of a special-shaped cross-section, which can easily realize the relative circumferential fixation of the locking assembly and the tripod body.

[0039] Further, a plurality of notch grooves are provided on the outer peripheral wall of the outer sleeve, and the notch openings of the notch grooves face away from the sphere.

[0040] By adopting the above technical solution, the arrangement of the notch grooves on the outer sleeve can reduce the structural strength of the outer peripheral wall of the outer sleeve, and the outer sleeve is prone to slight deformation, which is convenient for assembling the outer sleeve into the tripod body.

[0041] Further, a receiving cavity is formed between the outer sleeve and the inner sleeve, and at least a part of the reset elastic member is received in the receiving cavity.

[0042] By adopting the above technical solution, the reset elastic member is arranged in the receiving cavity between the outer sleeve and the inner sleeve. The receiving cavity can limit the reset elastic member, and since the outer diameter of the receiving cavity is very close to the outer diameter of the tripod body, a reset elastic member with a large outer diameter and strong elasticity can be arranged in the tripod body, further improving the locking effect of the locking assembly on the sphere under the action of the reset elastic member.

[0043] Further, a plurality of movable pins are uniformly arranged along the circumferential direction of the limiting component, and the number of the movable pins is less than or equal to the number of the guiding chutes.

[0044] By adopting the above technical solution, the arrangement of the plurality of movable pins can improve the reliability of the entire sphere swing locking mechanism.

[0045] Further, a limiting shaft coaxial with the tripod body is fixed inside the tripod body, the limiting component is rotatably connected to the limiting shaft around the axis of the limiting shaft, and a limiting step blocking the side of the limiting component away from the tripod body is provided on the limiting shaft.

[0046] By adopting the above technical solution, the arrangement of the limit shaft and the limit step thereon can improve the stability of the limit component during the rotation process, enabling the limit component to rotate axially around the limit shaft without being prone to vertical deviation.

[0047] Further, the limit component includes an inner sleeve rotatably connected to the outer periphery of the limit shaft and an outer sleeve sleeved and fixed to the outer periphery of the inner sleeve; an installation hole is provided on the outer periphery of the inner sleeve, and a through hole corresponding to the position of the installation hole is provided on the outer periphery of the outer sleeve; the limit elastic member is arranged in the installation hole, and one end of the movable pin is located in the installation hole and the other end can extend outwards from the through hole.

[0048] Further, a central shaft hole is provided at the center of the locking component, and the central shaft hole is in axial sliding fit with the limit shaft along the axial direction of the limit shaft.

[0049] By adopting the above technical solution, the axial sliding fit between the central shaft hole of the locking component and the limit shaft enables the limit shaft to guide the sliding of the locking component, which is beneficial to ensuring the precise sliding of the locking component along the axial direction of the limit shaft. Furthermore, the locking protrusion of the locking component can accurately adjust the sphere to the vertical state, avoiding the problem of deviation of the sphere when being locked due to the deviation of the movement direction of the locking component.

[0050] Further, a jack with an opening facing the locking component is provided inside the sphere, and a locking protrusion is provided at one end of the locking component facing the sphere. The locking protrusion extends into the jack to limit the rotation of the sphere relative to the rotation cavity.

[0051] By adopting the above technical solution, when a support rod is connected to the external component of the support leg frame, if the support rod is to be kept in the vertical state stably for a long time, only need to press down the locking component and then release it. The locking component moves from the first movable position to the locking position under the action of the reset elastic member. At this time, the locking protrusion of the locking component extends into the slot inside the sphere, and the locking protrusion presses against the sphere from the inside outwards. The sphere cannot swing relative to the axis of the foot frame body. This way of locking the sphere by the locking protrusion expanding the sphere from the inside outwards not only has a very good locking effect on the sphere, but also because the locking protrusion can only slide into the slot of the sphere from the bottom up with the locking component, the locking protrusion will automatically drive the sphere to rotate before the locking component is locked. When the locking component is locked, the sphere is driven by the locking protrusion to make the external component and the support rod thereon move to the vertical state. After the sphere is tightened, the external component and the support rod on the sphere will not deviate from the vertical direction. The sphere can be locked in the vertical direction or released with one operation, without repeatedly operating multiple times to lock the sphere and the external component and the support rod thereon in the vertical state, and the operation is simpler.

[0052] Further, the locking protrusion is in the shape of a frustum with a smaller upper part and a larger lower part, and the socket of the sphere is in the shape of a cone with the same outer shape as the locking protrusion.

[0053] Further, the upper end of the rotating cavity is provided with a top opening, and the sphere is connected with a connecting head extending out of the rotating cavity from the top opening; the connecting head is used for connecting an external component.

[0054] By adopting the above technical solution, when the locking component is locked, the outer wall surface of the frustum-shaped locking protrusion and the hole wall of the conical hole in the sphere are in close contact, which can increase the contact area when the two are in the locked state, thereby improving the locking effect. After the sphere is locked, the external component on the sphere and the support rod will not deviate from the vertical direction.

[0055] Further, the external component is used for connecting a support rod for supporting a photographic equipment, a photographic lamp or a photographic lamp shade.

[0056] Further, a sliding cavity is further provided inside the tripod body at the lower end, and the locking component is axially slidably arranged in the sliding cavity along the tripod body and is fixedly arranged circumferentially relative to the tripod body.

[0057] Further, the tripod body includes a main body sleeve and a sphere sleeve arranged coaxially, the rotating cavity is located inside the sphere sleeve, and the sliding cavity is located inside the main body sleeve.

[0058] By adopting the above technical solution, the tripod body is assembled by using a main body sleeve and a sphere sleeve, and the corresponding components can be produced and assembled separately, which can reduce the production and assembly difficulty of the product.

[0059] Further, a pressing member is further included; one end of the pressing member is pivotally connected to one end of the locking component facing the sphere, and the other end extends out of the tripod body, and the pressing member is used for driving the locking component to move in a direction away from the sphere.

[0060] Further, the pressing member includes an annular main body fixedly connected between the main body sleeve and the sphere sleeve, and the annular main body is located between the sphere and the locking component; a rotating shaft is provided on one side of the annular main body facing the sphere, and the pressing member further includes a foot pedal whose one end is rotatably connected to the rotating shaft and the other end extends out of the tripod body from the side opening.

[0061] By adopting the above technical solution, the pressing member composed of an annular main body and a rotatable foot pedal is simple in structure, easy to assemble and produce, and the foot pedal is easy to step on with the foot. When locking or unlocking the sphere, the operator does not need to squat down, and the operation is more convenient.

[0062] Furthermore, the locking assembly can pass through the central hole of the annular body, and the foot pedal is provided with a hole for the locking assembly to pass through.

[0063] By adopting the above technical solution, it is convenient for the foot pedal to apply an increased downward pressing force to the locking assembly after being pressed downward.

[0064] Furthermore, a lower damping ring and an upper damping ring are arranged at intervals inside the spherical casing. The lower damping ring and the upper damping ring enclose to form the rotating cavity. The aperture of the central hole of the lower damping ring and the aperture of the central hole of the upper damping ring are both smaller than the diameter of the sphere. The outer wall of the spherical casing is threadedly connected with a damping adjustment knob, and the damping adjustment knob abuts against the upper end surface of the upper damping ring. The damping adjustment knob is used to adjust the height of the upper damping ring, and further adjust the magnitude of the damping force exerted on the sphere by the upper damping ring and the lower damping ring.

[0065] By adopting the above technical solution, the setting of the damping adjustment knob can adjust the magnitude of the damping force exerted on the sphere by the upper damping ring and the lower damping ring.

[0066] Furthermore, at least three support feet are connected to the outer periphery of the main casing.

[0067] In summary, the support foot bracket provided by the present utility model adopts the spherical locking method of the foot pressing member. The operator only needs to step on the foot pedal once and then release the foot pedal, and the sphere will automatically find the vertical direction and remain vertical without deviating from the vertical direction. When the operator needs to use it, only step on the foot pedal again and then release the foot pedal, and the sphere can swing at any angle. One operation can lock the sphere in the vertical direction or release the sphere, without repeatedly operating multiple times to lock the sphere and its external components and support rods in the vertical state, and the operation is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0069] Figure 1 It is a three-dimensional structural diagram of the support foot bracket in the embodiment of the present utility model;

[0070] Figure 2 It is an exploded view of the support foot bracket in the embodiment of the present utility model;

[0071] Figure 3It is a cross-sectional view of the support leg in the embodiment of the present utility model;

[0072] Figure 4 It is a schematic diagram of the overall structure of the locking assembly in the embodiment of the present utility model;

[0073] Figure 5 It is an exploded view of the locking assembly in the embodiment of the present utility model;

[0074] Figure 6 It is a schematic diagram of the guiding chute on the inner wall surface of the inner sleeve in the embodiment of the present utility model;

[0075] Figure 7 It is a three-dimensional structure schematic diagram of the pressing member in the embodiment of the present utility model;

[0076] Figure 8 It is a cross-sectional view of the limiting assembly in the embodiment of the present utility model.

[0077] Explanation of reference numerals:

[0078] 1. Leg frame main body; 11. Main body sleeve; 111. Sliding cavity; 112. Side opening; 12. Sphere sleeve; 13. Support leg;

[0079] 2. Sphere; 21. Connecting head; 22. Jack;

[0080] 3. External connection component;

[0081] 4. Locking assembly; 41. Outer sleeve; 411. Locking protrusion; 412. Notch groove; 42. Inner sleeve; 421. Guiding chute; 4211. First strip-shaped groove; 4212. Second strip-shaped groove; 4213. First spiral groove; 4214. Second spiral groove; 421a. Locking and positioning position; 421b. Unlocking and positioning position; 421c. First moving position; 421d. Second moving position; 43. Accommodation cavity; 44. Locking screw; 45. Positioning pin;

[0082] 5. Reset elastic member;

[0083] 6. Pressing member; 61. Ring-shaped main body; 62. Rotating shaft; 63. Pedal; 631. Hole;

[0084] 7. Limiting assembly; 71. Moving pin; 72. Inner sleeve; 73. Outer sleeve; 731. Concave cavity; 74. Limiting elastic member; 75. Plain bearing; 76. Locking member;

[0085] 8. Limiting shaft; 81. Limiting step;

[0086] 91. Lower damping ring; 92. Upper damping ring;

[0087] 10. Damping adjustment knob. Detailed implementation manners

[0088] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0089] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0090] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0091] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0092] Such as Figure 1 - Figure 8A support tripod as shown, which is mainly used in cooperation with a monopod or a support rod during photography. The support tripod includes a tripod body 1, a sphere 2, a sphere swing locking mechanism, and an external connection component 3; the support tripod is used to support on the ground, the sphere swing locking mechanism is installed on the tripod body 1, the external connection component 3 is connected to the upper end of the sphere swing locking mechanism, and the external connection component 3 is used to connect a single rod such as a monopod or a support rod. The upper end of the monopod or the support rod is used for various photography-related equipment such as cameras, video cameras, mobile phones, stabilizers, photography lights, and lamp shades. The sphere swing locking mechanism is used to lock and unlock the external connection component 3. When the sphere swing locking mechanism is in the locked state, the external connection component 3 and the monopod or support rod thereon maintain a vertical state and do not deviate from the vertical direction; when the sphere swing locking mechanism is in the unlocked state, the external connection component 3 and the monopod or support rod thereon can swing arbitrarily relative to the axis of the tripod body 1.

[0093] Among them, the tripod body 1 is a tubular structure with a hollow interior. The interior of the tripod body 1 is provided with a rotation cavity at the upper end and a sliding cavity 111 at the lower end. The bottom wall of the sliding cavity 111 is sealed, the side wall of the sliding cavity 111 is provided with a side opening 112, the upper end of the sliding cavity 111 communicates with the lower end of the rotation cavity, and the upper end of the rotation cavity is provided with a top opening.

[0094] In this embodiment, the sphere 2 is restricted within the spherical surface formed by the rotation cavity, and the sphere 2 is rotatably arranged relative to the rotation cavity; a connecting head 21 extending out of the rotation cavity through the top opening is integrally formed at the upper end of the sphere 2, and the external connection component 3 is fixed on the connecting head 21. The sphere swing locking mechanism includes a locking component 4, a reset elastic member 5, and a limiting component 7. The locking component 4 is slidably arranged in the sliding cavity 111 along the axial direction of the tripod body 1, and the locking component 4 is fixedly arranged relative to the circumferential direction of the tripod body 1. The reset elastic member 5 is elastically arranged between the locking component 4 and the tripod body 1, and the reset elastic member 5 is used to drive the locking component 4 to move in the direction close to the sphere 2. The limiting component 7 is connected to the tripod body 1, and the limiting component 7 is provided with a movable pin 71 that cooperates with the locking component 4.

[0095] When the locking assembly 4 slides under an external force, the movable pin 71 can move relative to the locking assembly 4 and be positioned at the locking position 421a or the unlocking position 421b on the locking assembly 4. At the locking position 421a, the locking assembly 4 presses against the sphere 2 to limit the swinging of the sphere 2 relative to the axis of the tripod body 1; at the unlocking position 421b, the locking assembly 4 releases the sphere 2 to allow the sphere 2 to swing relative to the axis of the tripod body 1. When the locking assembly 4 slides downward under an external force, the movable pin 71 can also alternately move relative to the locking assembly 4 to the first movable position 421c and the second movable position 421d on the locking assembly 4; the locking assembly 4 can move the movable pin 71 from the first movable position 421c to the locking position 421a or from the second movable position 421d to the unlocking position 421b under the action of the reset elastic member 5.

[0096] The locking assembly 4 alternately moves to the first movable position 421c and the second movable position 421d under an external force, and the locking assembly 4 moves from the first movable position 421c to the locking position 421a or from the second movable position 421d to the unlocking position 421b under the action of the reset elastic member 5. The limiting assembly 7 is used to lock the locking assembly 4 at the locking position 421a and the unlocking position 421b, and the movable pin 71 is also used to limit the locking assembly 4 at the first movable position 421c and the second movable position 421d. When the movable pin 71 is at the locking position 421a, the locking assembly 4 presses against the sphere 2 to limit the swinging of the sphere 2 relative to the axis of the tripod body 1, and the movable pin 71 locks the locking assembly 4 at the locking position 421a; when the movable pin 71 is at the unlocking position 421b, the locking assembly 4 releases the sphere 2 to allow the sphere 2 to swing relative to the axis of the tripod body 1, and the movable pin 71 locks the locking assembly 4 at the unlocking position 421b; when the movable pin 71 is at the first movable position 421c, the movable pin 71 limits the locking assembly 4 at the first movable position 421c to limit the first downward pressing stroke of the locking assembly 4; when the locking assembly 4 is at the second movable position 421d, the movable pin 71 limits the locking assembly 4 at the second movable position 421d to limit the second downward pressing stroke of the locking assembly 4.

[0097] The support tripod further includes a pressing member 6, one end of the pressing member 6 acts on one end of the locking assembly 4 facing the sphere 2, and the other end extends out of the tripod body 1 from the side opening 112; the pressing member 6 is used to drive the locking assembly 4 to move away from the sphere 2.

[0098] When it is necessary to lock the monopod or support rod connected to the external component 3 in the vertical state, press down the pressing member 6 and then release the pressing member 6. Under the action of the reset elastic member 5, the locking assembly 4 moves from the first active position 421c to the locking and locking position 421a. At this time, the locking assembly 4 abuts against the sphere 2 upward, the movable pin 71 and the locking assembly 4 abut against each other along the axial direction of the locking assembly 4, and the sphere 2 cannot swing relative to the axis of the tripod body 1. The sphere 2 is locked in the vertical state, and correspondingly, the external component 3 and the monopod or support rod connected to the sphere 2 also remain in the vertical state. When it is necessary to make the sphere 2 and the external component 3 connected thereto swing around the axis of the tripod body 1, press down the pressing member 6 again and then release the pressing member 6. Under the action of the reset elastic member 5, the locking assembly 4 moves from the second active position 421d to the unlocking and locking position 421b. The locking assembly 4 releases the sphere 2, the movable pin 71 and the locking assembly 4 abut against each other along the axial direction of the locking assembly 4, and the sphere 2 can swing freely around the axis of the tripod body 1 in the rotation cavity. Correspondingly, the external connecting component 3 and the monopod or support rod on the sphere 2 can also swing freely. Only one operation is required to lock and unlock the sphere 2 on the support tripod, and the operation is very simple and easy, which can greatly improve the product competitiveness of the support tripod.

[0099] In some embodiments, a jack 22 with an opening facing the locking assembly 4 is provided inside the sphere 2. One end of the locking assembly 4 facing the sphere 2 is provided with a locking protrusion 411 that protrudes outward from the sphere 2 once. The locking protrusion 411 can extend into the jack 22 to limit the relative rotation of the sphere 2 with respect to the rotation cavity. When the locking assembly 4 is in the locked state, the locking protrusion 411 of the locking assembly 4 extends into the slot inside the sphere 2, and the locking protrusion 411 presses against the sphere 2 from the inside out, and the sphere 2 cannot rotate relative to the rotation cavity. This method of using the locking protrusion 411 to expand the sphere 2 from the inside out to lock the sphere 2 not only has a very good locking effect on the sphere 2; moreover, since the locking protrusion 411 can only slide into the slot of the sphere 2 from bottom to top along with the locking assembly 4, the locking protrusion 411 will automatically drive the sphere 2 to rotate before the locking assembly 4 moves to the locking position. When the locking assembly 4 moves to the locking position, the sphere 2 is driven by the locking protrusion 411 to make the external assembly 3 thereon in a vertical state. After the sphere 2 is tightened, the external assembly 3 on the sphere 2 will not deviate from the vertical direction. The sphere 2 can be locked in the vertical direction or the sphere 2 can be loosened with one operation, without repeatedly operating multiple times to lock the sphere 2, the external assembly 3 thereon, and the monopod or support rod in the vertical state, and the operation is simpler. In some alternative embodiments, the jack 22 may not be provided inside the sphere 2, and the locking protrusion 411 may not be provided on the locking assembly 4 either. The locking assembly 4 directly or indirectly abuts against the lower end of the sphere 2 to lock or unlock the sphere 2. In some other alternative embodiments, a damping pad seat is provided inside the tripod body 1 and is located between the sphere 2 and the locking assembly 4. The damping pad seat defines a partial outer spherical surface of the rotation cavity. The locking assembly 4 locks the sphere 2 by driving the damping pad seat to move upward.

[0100] In some embodiments, the locking protrusion 411 is in the shape of a frustum with a smaller upper part and a larger lower part, and the jack 22 of the sphere 2 is in a conical shape that is the same as the outer shape of the locking protrusion 411. When the locking assembly 4 is locked, the outer wall surface of the frustum-shaped locking protrusion 411 and the hole wall of the conical hole inside the sphere 2 are in close contact, which can increase the contact area when the two are in the locked state, thereby improving the locking effect; after the sphere 2 is locked, the external assembly 3 on the sphere 2 and the support rod will not deviate from the vertical direction.

[0101] In some embodiments, the limiting component 7 is disposed within the tripod body 1, and the locking component 4 has a cavity inside; when the locking component 4 slides vertically, the limiting component 7 can extend into the cavity inside the locking component 4. The limiting component 7 is axially fixed relative to the tripod body 1 and is rotationally disposed relative to the circumferential direction. The movable pin 71 is movably connected to the limiting component 7 along the radial direction of the limiting component 7, and the movable pin 71 is used to lock the locking component 4 at the locking position 421a or the unlocking position 421b. When the locking component 4 slides downward under the action of the pressing member 6, the locking component 4 can drive the limiting component 7 to rotate about its own axis through the movable pin 71; when the locking component 4 rebounds upward under the elastic action of the reset elastic member 5, the movable pin 71 remains stationary automatically, but the position of the movable pin 71 on the locking component 4 linearly moves from the first movable position 421c to the locking position 421a or linearly moves from the second movable position 421d to the unlocking position 421b. In an alternative embodiment, the limiting component 7 can also be disposed outside the locking component 4 or the tripod body 1, as long as the limiting component 7 can lock the locking component 4 at the locking position 421a and the unlocking position 421b. The limiting component 7 can be one and located at a specific position, and the limiting component 7 can also be multiple, and multiple limiting components 7 lock or limit the locking component 4 at different positions respectively.

[0102] In some embodiments, a limiting elastic member 74 is provided between the limiting component 7 and the movable pin 71. The limiting elastic member 74 is used to drive one end of the movable pin 71 to extend out of the outer wall surface of the limiting component 7 along the radial direction of the limiting component 7. A guiding chute 421 is provided on the inner wall surface of the locking component 4, and one end of the movable pin 71 extending out of the outer wall surface of the limiting component 7 extends into the guiding chute 421. The setting of the guiding chute 421 on the inner wall of the locking component 4 can restrict the movement direction of the movable pin 71, so that the movable pin 71 can lock the locking component 4 at the locking position 421a or the unlocking position 421b, and enable the movable pin 71 to slide from the first movable position 421c to the locking position 421a and slide from the second movable position 421d to the unlocking position 421b, realizing one - operation locking and one - operation unlocking of the support tripod, and the operation is very simple. In the locked state, the sphere 2 and the external components 3 thereon automatically assume a vertical state; in the unlocked state, the sphere 2 and the external components 3 thereon can swing arbitrarily.

[0103] In some embodiments, the locking lock position 421a, the unlocking lock position 421b, the first active position 421c, and the second active position 421d are located at different positions on the guiding chute 421; in the axial direction of the locking assembly 4, the distance between the locking lock position 421a and the sphere 2 is greater than the distance between the first active position 421c and the sphere 2, the distance between the unlocking lock position 421b and the sphere 2 is greater than the distance between the second active position 421d and the sphere 2, and the distance between the locking lock position 421a and the sphere 2 is greater than the distance between the unlocking lock position 421b and the sphere 2. When the movable pin 71 is at the locking lock position 421a and the locking assembly 4 is not subjected to a downward pressing force, the movable pin 71 abuts against the locking assembly 4 along the axial direction of the locking assembly 4 to restrict the movement of the locking assembly 4 from the locking lock position 421a to the first active position 421c. When the movable pin 71 is at the locking lock position 421a and the locking assembly 4 is subjected to the downward pressing force of the pressing member 6, the movable pin 71 moves from the locking lock position 421a to the second active position 421d, and the movable pin 71 abuts against the locking assembly 4 to define the first downward movement stroke of the locking assembly 4. When the movable pin 71 is at the second active position 421d and the downward pressing force of the pressing member 6 on the locking assembly 4 disappears, the locking assembly 4 moves upward under the elastic restoring force of the reset elastic member 5, the movable pin 71 moves from the second active position 421d to the unlocking lock position 421b, and the movable pin 71 abuts against the locking assembly 4 along the axial direction of the locking assembly 4 to restrict the movement of the locking assembly 4 from the unlocking lock position 421b to the second active position 421d. When the movable pin 71 is at the unlocking lock position 421b and the locking assembly 4 is subjected to the downward pressing force of the pressing member 6, the movable pin 71 moves from the unlocking lock position 421b to the first active position 421c, and the movable pin 71 abuts against the locking assembly 4 to define the second downward movement stroke of the locking assembly 4. The settings of the locking lock position 421a, the unlocking lock position 421b, the first active position 421c, and the second active position 421d on the guiding chute 421 can lock the locking assembly 4 at the locking lock position 421a and the unlocking lock position 421b, and enable the locking assembly 4 to automatically move from the first active position 421c to the locking lock position 421a and automatically move from the second active position 421d to the unlocking lock position 421b under the action of the reset elastic member 5.

[0104] In some embodiments, the guiding chute 421 includes a first strip-shaped groove 4211, a second strip-shaped groove 4212, a first spiral groove 4213, and a second spiral groove 4214. The length directions of the first strip-shaped groove 4211 and the second strip-shaped groove 4212 are both parallel to the axial direction of the tripod body 1. The two ends of the first spiral groove 4213 are respectively communicated with the first strip-shaped groove 4211 and the second strip-shaped groove 4212, and the two ends of the second spiral groove 4214 are respectively communicated with the first strip-shaped groove 4211 and the second strip-shaped groove 4212. The length of the first strip-shaped groove 4211 is greater than the length of the second strip-shaped groove 4212, and the length of the first spiral groove 4213 is greater than the length of the second spiral groove 4214. The first moving position 421c and the locking and positioning position 421a are located at opposite ends of the first strip-shaped groove 4211, and the second moving position 421d and the unlocking and positioning position 421b are located at opposite ends of the second strip-shaped groove 4212; moreover, the locking and positioning position 421a is located at the end where the first spiral groove 4213 is communicated with the first strip-shaped groove 4211, and the unlocking and positioning position 421b is located at the end where the second spiral groove 4214 is communicated with the second strip-shaped groove 4212. The guiding chute 421 composed of the first strip-shaped groove 4211, the second strip-shaped groove 4212, the first spiral groove 4213, and the second spiral groove 4214 has a simple structure and is easy to implement.

[0105] In some embodiments, the groove depth of the end of the first helical groove 4213 connected to the first strip-shaped groove 4211 is greater than the groove depth of the first strip-shaped groove 4211, so that the movable pin 71 slides along the first helical groove 4213 to the second strip-shaped groove 4212; the groove depth of the end of the second helical groove 4214 connected to the second strip-shaped groove 4212 is greater than the groove depth of the second strip-shaped groove 4212, so that the movable pin 71 slides along the second helical groove 4214 to the first strip-shaped groove 4211. When the external component 3 on the support leg is in the vertical state, at this time the movable pin 71 is located at the connection between the first helical groove 4213 and the first strip-shaped groove 4211. Press down the pressing member 6, and the pressing member 6 applies a downward pressing force to the locking assembly 4. The locking assembly 4 moves downward. During the downward movement, because the groove depth of the end of the first helical groove 4213 connected to the first strip-shaped groove 4211 is greater than the groove depth of the first strip-shaped groove 4211, the movable pin 71 can only move along the first helical groove 4213. Under the action of the inclined groove force, the limiting assembly 7 will rotate. At this time, the movable pin 71 will move until it reaches the end where the first helical groove 4213 communicates with the second strip-shaped groove 4212, and then the movable pin 71 moves to the upper end of the second strip-shaped groove 4212. At this time, the locking assembly 4 cannot be pressed down any further. After releasing the pressing member 6, the locking assembly 4 moves to the lower end of the second strip-shaped groove 4212 under the action of the reset elastic member 5 and is locked by the movable pin 71. At this time, the locking protrusion 411 will disengage from the sphere 2, and the sphere 2 is in the unlocked state and can rotate freely in the rotation cavity. Press down the pressing member 6 again, and the pressing member 6 applies a downward pressing force to the locking assembly 4. The locking assembly 4 moves downward. During the downward movement, because the groove depth of the end of the second helical groove 4214 connected to the second strip-shaped groove 4212 is greater than the groove depth of the second strip-shaped groove 4212, the movable pin 71 can only move along the second helical groove 4214. Under the action of the inclined groove force, the limiting assembly 7 will rotate. At this time, the movable pin 71 will move until it reaches the upper end of the first strip-shaped groove 4211. At this time, the locking assembly 4 cannot be pressed down any further. Release the pressing member 6, and the locking assembly 4 moves to the lower end of the first strip-shaped groove 4211 under the action of the reset elastic member 5 and is locked by the movable pin 71. At this time, the locking assembly 4 will move in the direction close to the sphere 2 until the locking protrusion 411 enters the insertion hole 22 in the sphere 2, thereby locking the sphere 2 and keeping the sphere 2 in the vertical state.

[0106] In some embodiments, the first strip-shaped groove 4211, the first helical groove 4213, the second strip-shaped groove 4212, and the second helical groove 4214 are sequentially arranged along the circumferential direction of the inner wall surface of the locking assembly 4. The number of the guiding sliding grooves 421 is one group. The first strip-shaped groove 4211 and the second helical groove 4214 are communicated end to end, and the guiding sliding groove 421 penetrates along the circumferential direction of the inner wall surface of the locking assembly 4. In another embodiment, the number of the guiding sliding grooves 421 is multiple groups, and the multiple groups of guiding sliding grooves 421 are uniformly arranged along the circumferential direction of the inner wall surface of the locking assembly 4; the first strip-shaped groove 4211 of the previous group of guiding sliding grooves 421 is communicated with the second helical groove 4214 of the next group of guiding sliding grooves 421, and the multiple groups of guiding sliding grooves 421 penetrate along the circumferential direction of the inner wall surface of the locking assembly 4; the movable pin 71 can slide alternately in the multiple groups of guiding sliding grooves 421.

[0107] In some embodiments, three movable pins 71 are uniformly arranged along the circumferential direction of the limiting assembly 7, and the number of the movable pins 71 is equal to the number of the guiding sliding grooves 421. The arrangement of the multiple movable pins 71 can improve the reliability of the entire locking mechanism. It can be conceived here that the number of the movable pins 71 can also be less than the number of the guiding sliding grooves 421. For example, the number of the movable pins 71 is two.

[0108] In some embodiments, the locking assembly 4 includes an outer sleeve 41 and an inner sleeve 42 coaxially arranged with the tripod body 1. The outer sleeve 41 is in sliding fit with the sliding cavity 111, and the inner sleeve 42 is fixed inside the outer sleeve 41 by multiple groups of locking screws; the guiding sliding groove 421 is recessed on the inner wall surface of the inner sleeve 42. A plurality of positioning pins 45 are provided at the end of the inner sleeve 42, and the outer sleeve 41 is provided with positioning holes cooperating with the plurality of positioning pins 45. The locking assembly 4 adopts the method of being made separately by the outer sleeve 41 and the inner sleeve 42 and then assembled together, and the processing of the locking assembly 4 is more convenient.

[0109] In some embodiments, the inner sleeve 42 is formed by splicing three arc-shaped sheets end to end; such an arrangement can reduce the difficulty of machining the above-mentioned guiding sliding groove 421 in the inner sleeve 42.

[0110] In some embodiments, the mating surface of the outer sleeve 41 and the tripod body 1 has a special-shaped cross-section; in this way, the relative circumferential fixed setting of the locking assembly 4 and the tripod body 1 can be easily realized, and the assembly is simple.

[0111] In some embodiments, three notch grooves 412 are provided on the outer peripheral wall of the outer sleeve 41, and the openings of the three notch grooves 412 face away from the sphere 2. The arrangement of the notch grooves 412 on the outer peripheral wall of the outer sleeve 41 can reduce the structural strength of the outer sleeve 41, and the outer peripheral wall of the outer sleeve 41 is prone to minor deformation, which is convenient for assembling the outer sleeve 41 into the sliding cavity 111 of the tripod body 1.

[0112] In some embodiments, a receiving cavity 43 is formed between the outer sleeve 41 and the inner sleeve 42, and the reset elastic member 5 is at least partially received in the receiving cavity 43. With such an arrangement, the locking assembly 4 can limit the reset elastic member 5 through the receiving cavity 43, and since the outer diameter of the receiving cavity 43 is very close to the outer diameter of the tripod body 1, a reset elastic member 5 with a large outer diameter and strong elasticity can be provided within the tripod body 1, further improving the locking effect of the locking assembly 4 on the sphere 2 under the action of the reset elastic member 5.

[0113] In some embodiments, a limiting shaft 8 coaxial with the tripod body 1 is fixed inside the tripod body 1. The limiting assembly 7 is rotatably connected to the limiting shaft 8 around the axis of the limiting shaft 8, and a limiting step 81 blocking the side of the limiting assembly 7 away from the tripod body 1 is provided on the limiting shaft 8. The arrangement of the limiting shaft 8 and the limiting step 81 thereon can improve the stability of the limiting assembly 7 during rotation, enabling the limiting assembly 7 to rotate axially around the limiting shaft 8 without being prone to vertical displacement. The limiting assembly 7 includes an inner sleeve 72 rotatably connected to the outer periphery of the limiting shaft 8 and an outer sleeve 73 sleeved and fixed on the outer periphery of the inner sleeve 72. An installation hole is provided on the outer periphery of the inner sleeve 72, and a through hole corresponding to the position of the installation hole is provided on the outer periphery of the outer sleeve 73. The limiting elastic member 74 is disposed in the installation hole, and one end of the movable pin 71 is located in the installation hole and the other end can extend outwards from the through hole. A concave cavity 731 matching the limiting step 81 of the limiting shaft 8 is provided on the outer sleeve 73.

[0114] In some embodiments, a central shaft hole is provided at the center of the outer sleeve 41, and the central shaft hole is in sliding fit with the limiting shaft 8 along the axial direction of the limiting shaft 8. With such an arrangement, the limiting shaft 8 plays a guiding role in the sliding of the locking assembly 4, which is beneficial to ensuring the precise sliding of the locking assembly 4 along the axial direction of the limiting shaft 8, so that the locking protrusion 411 of the locking assembly 4 can precisely adjust the sphere 2 to the vertical state, avoiding the problem of deviation of the sphere 2 when being locked due to the deviation of the movement direction of the locking assembly 4.

[0115] In some embodiments, the tripod body 1 includes a main body sleeve 11 and a sphere sleeve 12 arranged coaxially. The rotating cavity is located inside the sphere sleeve 12, and the sliding cavity 111 is located inside the main body sleeve 11. The way that the tripod body 1 is assembled by the main body sleeve 11 and the sphere sleeve 12 can separately produce and assemble the corresponding components, which can reduce the production and assembly difficulty of the product.

[0116] In some embodiments, the pressing member 6 includes an annular body 61 fixedly connected between the main body sleeve 11 and the spherical body sleeve 12. The annular body 61 is located between the spherical body 2 and the locking assembly 4. A rotating shaft 62 is provided on the side of the annular body 61 facing the spherical body 2. The pressing member 6 further includes a foot pedal 63 with one end rotatably connected to the rotating shaft 62 and the other end extending out of the tripod body 1 through the side opening 112. The pressing member 6 composed of the annular body 61 and the rotatable foot pedal 63 has a simple structure, is easy to assemble and produce, and the foot pedal 63 is easy to step on with the foot. When locking or unlocking the spherical body 2, the operator does not need to squat down, and the operation is more convenient. The locking boss can pass through the central hole of the annular body 61, and the foot pedal 63 is provided with a hole for the locking boss to pass through. With such a setting, it is convenient for the foot pedal 63 to apply an increased downward pressing force to the locking assembly 4 after being pressed down.

[0117] In some embodiments, a lower damping ring 91 and an upper damping ring 92 are provided at intervals inside the spherical body sleeve 12. The lower damping ring 91 and the upper damping ring 92 enclose a rotating cavity. The aperture of the central hole of the lower damping ring 91 and the aperture of the central hole of the upper damping ring 92 are both smaller than the diameter of the spherical body 2. The outer wall of the spherical body sleeve 12 is threadedly connected with a damping adjustment knob 10. The damping adjustment knob 10 abuts against the upper end surface of the upper damping ring 92. The damping adjustment knob 10 is used to adjust the height of the upper damping ring 92, and further adjust the magnitude of the damping force exerted on the spherical body 2 by the upper damping ring 92 and the lower damping ring 91.

[0118] In summary, for the support tripod provided by the present utility model, a foot-operated locking method for the spherical body 2 is adopted. The operator only needs to step on the foot pedal 63 once and then release the foot pedal 63. The spherical body 2 will automatically find the vertical direction and maintain verticality, and will not deviate from the vertical direction. When the operator needs to use it, only need to step on the foot pedal 63 again and then release the foot pedal 63, and the spherical body 2 can swing at any angle. One operation can lock the spherical body 2 in the vertical direction or release the spherical body 2, without repeatedly operating multiple times to lock the spherical body 2 and the external components 3 and the support rod thereon in the vertical state, and the operation is simpler.

[0119] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the embodiments. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the embodiments here. And the obvious changes or variations derived therefrom are still within the protection scope of the present inventive creation.

Claims

1. A support tripod, characterized in that, It includes a tripod body (1) with a rotating cavity at the upper end, a sphere (2) that is limited within the spherical surface formed by the rotating cavity and is rotatably arranged relative to the rotating cavity, and a sphere swing locking mechanism arranged within the tripod body (1) and used to lock or unlock the sphere (2); the sphere swing locking mechanism includes; a locking assembly (4) that is slidably matched with the tripod body (1); a reset elastic member (5) that is elastically arranged between the locking assembly (4) and the tripod body (1); a limiting assembly (7) that is connected to the tripod body (1), and the limiting assembly (7) is provided with a movable pin (71) that cooperates with the locking assembly (4); When the locking assembly (4) slides under an external force, the movable pin (71) can move relative to the locking assembly (4) and be positioned at a locking position (421a) or an unlocking position (421b) on the locking assembly (4); At the locking position (421a), the locking assembly (4) presses against the sphere (2) to limit the axial swing of the sphere (2) relative to the tripod body (1); at the unlocking position (421b), the locking assembly (4) releases the sphere (2) to allow the sphere (2) to swing axially relative to the tripod body (1).

2. The support leg frame according to claim 1, wherein, When the locking assembly (4) slides downward under an external force, the movable pin (71) can alternately move relative to the locking assembly (4) to a first movable position (421c) and a second movable position (421d) on the locking assembly (4); the locking assembly (4) can move the movable pin (71) from the first movable position (421c) to the locking position (421a) or from the second movable position (421d) to the unlocking position (421b) under the action of the reset elastic member (5).

3. The support leg bracket according to claim 2, characterized in that, The limiting assembly (7) is axially fixed relative to the tripod body (1) and is rotatably arranged circumferentially, and the movable pin (71) is radially movably connected to the outer periphery of the limiting assembly (7).

4. The support leg according to claim 3, characterized in that A limiting elastic member (74) is arranged between the limiting assembly (7) and the movable pin (71), and the limiting elastic member (74) is used to drive one end of the movable pin (71) to extend radially out of the outer wall surface of the limiting assembly (7), and a guiding chute (421) is arranged on the inner wall surface of the locking assembly (4), and the end of the movable pin (71) extending out of the limiting assembly (7) extends into the guiding chute (421).

5. The support leg bracket according to claim 4, wherein, The locking lock position (421a), the unlocking lock position (421b), the first active position (421c) and the second active position (421d) are located at different positions on the guiding chute (421); in the axial direction of the locking assembly (4), the distance between the locking lock position (421a) and the sphere (2) is greater than the distance between the first active position (421c) and the sphere (2), the distance between the unlocking lock position (421b) and the sphere (2) is greater than the distance between the second active position (421d) and the sphere (2), and the distance between the locking lock position (421a) and the sphere (2) is greater than the distance between the unlocking lock position (421b) and the sphere (2); When the movable pin (71) is at the locking lock position (421a) and the locking assembly (4) is not subjected to a downward pressing force, the movable pin (71) and the locking assembly (4) abut against each other along the axial direction of the locking assembly (4) to restrict the movement of the movable pin (71) from the locking lock position (421a) to the first active position (421c); When the movable pin (71) is at the locking lock position (421a) and the locking assembly (4) is subjected to a downward pressing force, the movable pin (71) moves from the locking lock position (421a) to the second active position (421d), and the movable pin (71) abuts against the locking assembly (4) to define the first downward movement stroke of the locking assembly (4); When the movable pin (71) is at the second active position (421d) and the downward pressing force applied to the locking assembly (4) disappears, the locking assembly (4) moves upward under the elastic restoring force of the reset elastic member (5), the movable pin (71) moves from the second active position (421d) to the unlocking lock position (421b), and the movable pin (71) and the locking assembly (4) abut against each other along the axial direction of the locking assembly (4) to restrict the movement of the movable pin (71) from the unlocking lock position (421b) to the second active position (421d); When the movable pin (71) is at the unlocking lock position (421b) and the locking assembly (4) is subjected to a downward pressing force, the movable pin (71) moves from the unlocking lock position (421b) to the first active position (421c), and the movable pin (71) abuts against the locking assembly (4) to define the second downward movement stroke of the locking assembly (4).

6. The support leg bracket according to claim 5, wherein The guiding sliding groove (421) includes a first strip-shaped groove (4211), a second strip-shaped groove (4212), a first spiral groove (4213) and a second spiral groove (4214). The length directions of the first strip-shaped groove (4211) and the second strip-shaped groove (4212) are both parallel to the axial direction of the tripod body (1). The two ends of the first spiral groove (4213) are respectively communicated with the first strip-shaped groove (4211) and the second strip-shaped groove (4212). The two ends of the second spiral groove (4214) are respectively communicated with the first strip-shaped groove (4211) and the second strip-shaped groove (4212).

7. The support leg according to claim 6, characterized in that, The groove depth of the end of the first spiral groove (4213) connected to the first strip-shaped groove (4211) is greater than the groove depth of the first strip-shaped groove (4211), so that the movable pin (71) slides along the first spiral groove (4213) to the second strip-shaped groove (4212); the groove depth of the end of the second spiral groove (4214) connected to the second strip-shaped groove (4212) is greater than the groove depth of the second strip-shaped groove (4212), so that the movable pin (71) slides along the second spiral groove (4214) to the first strip-shaped groove (4211).

8. The support leg according to claim 7, characterized in that, The first active position (421c) and the locking and positioning position (421a) are located at the opposite ends of the first strip-shaped groove (4211), and the second active position (421d) and the unlocking and positioning position (421b) are located at the opposite ends of the second strip-shaped groove (4212).

9. The support leg bracket according to claim 6, characterized in that, The first strip-shaped groove (4211), the first spiral groove (4213), the second strip-shaped groove (4212) and the second spiral groove (4214) are sequentially arranged along the circumferential direction of the inner wall surface of the locking assembly (4); When the number of the guiding sliding grooves (421) is one group, the first strip-shaped groove (4211) and the second spiral groove (4214) are connected end to end, and the guiding sliding groove (421) penetrates along the circumferential direction of the inner wall surface of the locking assembly (4); When the number of the guiding sliding grooves (421) is multiple groups, multiple groups of the guiding sliding grooves (421) are evenly arranged along the circumferential direction of the inner wall surface of the locking assembly (4); the first strip-shaped groove (4211) of the previous group of the guiding sliding grooves (421) is communicated with the second spiral groove (4214) of the next group of the guiding sliding grooves (421), and multiple groups of the guiding sliding grooves (421) penetrate along the circumferential direction of the inner wall surface of the locking assembly (4); the movable pin (71) can slide alternately in multiple groups of the guiding sliding grooves (421).

10. The support leg bracket according to any one of claims 4-9, characterized in that, The locking assembly (4) includes an outer sleeve (41) and an inner sleeve (42) coaxially arranged with the tripod body (1). The outer sleeve (41) is in sliding fit with the tripod body (1), and the inner sleeve (42) is fixed inside the outer sleeve (41); the guiding sliding groove (421) is arranged on the inner wall surface of the inner sleeve (42).

11. The support leg bracket according to claim 10, characterized in that, The inner sleeve (42) is formed by splicing a plurality of arc-shaped sheets end to end.

12. The support leg according to claim 10, characterized in that, The outer peripheral wall of the outer sleeve (41) is provided with a plurality of notch grooves (412), and the notch of the notch groove (412) faces away from the sphere (2).

13. The support leg bracket according to claim 10, characterized in that, An accommodation cavity (43) is formed between the outer sleeve (41) and the inner sleeve (42), and at least a part of the reset elastic member (5) is received in the accommodation cavity (43).

14. The support leg bracket according to claim 3, characterized in that, A limiting shaft (8) coaxially arranged with the tripod main body (1) is fixed inside the tripod main body (1). The limiting assembly (7) is rotatably connected to the limiting shaft (8) around the axis of the limiting shaft (8), and a limiting step (81) blocking the side of the limiting assembly (7) away from the tripod main body (1) is provided on the limiting shaft (8).

15. The support leg bracket according to claim 14, characterized in that, A central shaft hole is provided at the center of the locking assembly (4), and the central shaft hole is in axial sliding fit with the limiting shaft (8) along the axis of the limiting shaft (8).

16. The support stand according to claim 1, wherein: A jack (22) with an opening facing the locking assembly (4) is provided inside the sphere (2). One end of the locking assembly (4) facing the sphere (2) is provided with a locking protrusion (411), and the locking protrusion (411) extends into the jack (22) to limit the swing of the sphere (2) relative to the axis of the tripod main body (1).

17. The support leg bracket according to claim 16, wherein, The locking protrusion (411) is in the shape of a frustum with a smaller upper part and a larger lower part, and the jack (22) of the sphere (2) is in the shape of a cone with the same outer shape as the locking protrusion (411).

18. The support leg bracket according to claim 1, wherein, The upper end of the rotation cavity is provided with a top opening, and the sphere (2) is connected with a connecting head (21) extending out of the rotation cavity through the top opening; the connecting head (21) is used for connecting an external assembly (3).

19. The support leg according to claim 18, characterized in that, The external assembly (3) is used for connecting a support rod or a monopod for supporting photographic equipment.

20. The support leg according to claim 1, characterized in that, A sliding cavity (111) is further provided at the lower end inside the tripod main body (1). The locking assembly (4) is axially slidably arranged in the sliding cavity (111) along the tripod main body (1) and is fixedly arranged relative to the circumferential direction of the tripod main body (1).

21. The support leg according to claim 20, characterized in that, The tripod main body (1) includes a main body sleeve (11) and a sphere sleeve (12) arranged coaxially. The rotation cavity is located inside the sphere sleeve (12), and the sliding cavity (111) is located inside the main body sleeve (11).

22. The support leg bracket according to claim 21, wherein, It further includes a pressing member (6); one end of the pressing member (6) is pivotally connected to one end of the locking assembly (4) facing the sphere (2), and the other end extends out of the tripod main body (1). The pressing member (6) is used for driving the locking assembly (4) to move in a direction away from the sphere (2).

23. The support leg bracket according to claim 22, characterized in that, The pressing member (6) includes an annular main body (61) fixedly connected between the main body sleeve (11) and the sphere sleeve (12). The annular main body (61) is located between the sphere (2) and the locking assembly (4); a rotating shaft (62) is provided on one side of the annular main body (61) facing the sphere (2). The pressing member (6) further includes a foot pedal (63) with one end rotatably connected to the rotating shaft (62) and the other end extending out of the tripod main body (1).

24. The support leg according to claim 23, characterized in that, The foot pedal (63) is provided with a hole for the locking assembly (4) to pass through.

25. The support leg according to claim 21, characterized in that, The sphere sleeve (12) is provided with a lower damping ring (91) and an upper damping ring (92) which are spaced apart. A rotation cavity is formed by enclosing the lower damping ring (91) and the upper damping ring (92). The aperture diameters of the central holes of the lower damping ring (91) and the upper damping ring (92) are both smaller than the diameter of the sphere (2). The outer wall of the sphere sleeve (12) is threadedly connected with a damping adjustment knob (10). The damping adjustment knob (10) abuts against the upper end surface of the upper damping ring (92). The damping adjustment knob (10) is used to adjust the magnitude of the damping force exerted on the sphere (2) by the upper damping ring (92) and the lower damping ring (91).

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