Sudden stop mechanism for center shaft of photography tripod

Abstract

The utility model provides an emergency stop mechanism for a center shaft of a photography tripod. Comprising a middle shaft assembly, a supporting leg seat assembly which is arranged on the middle shaft assembly in a sleeving mode and slides up and down along the middle shaft assembly, a middle shaft one-way self-locking holding assembly arranged in the supporting leg seat assembly, and an expansion locking assembly which is arranged on the outer side of the supporting leg seat assembly, penetrates through the supporting leg seat assembly and is connected with the middle shaft one-way self-locking holding assembly. The expansion locking assembly acts to force the middle shaft one-way self-locking enclasping assembly to enclasp the middle shaft assembly or loosen the middle shaft assembly. The middle shaft one-way self-locking enclasping assembly is arranged between the supporting leg base assembly and the middle shaft assembly, the expansion locking assembly is unscrewed to move the supporting leg base assembly to a proper position of the middle shaft assembly, and then the expansion locking assembly is screwed, so that the height of the photography tripod can be adjusted with one hand.

Description

Technical Field

[0001] The utility model relates to the field of tripods, in particular to a central axis emergency stop mechanism of a photographic tripod. Background Art

[0002] A photography scaffold, or tripod, is a support frame used to stabilize the camera. It plays an important role in photography and can help photographers achieve the desired photographic effect. In order to meet different shooting needs and changes in perspective, it is usually necessary to adjust the height of the photography tripod. By adjusting the height of the tripod, the photographer can adjust the angle and height of the camera according to the shooting subject and composition requirements to obtain a more satisfactory shooting effect. For example, when shooting landscapes or buildings, you may need to place the camera in a lower position to obtain a wider perspective; when shooting portraits or macro photography, you may need to place the camera in a higher position to obtain a better composition and perspective. Therefore, height adjustment is very important for photographers, as it can help photographers better grasp the initiative of shooting and obtain better shooting effects.

[0003] Currently, the existing photography tripod needs to be adjusted in height to obtain shooting positions at different heights. Adjusting the photography tripod with both hands has the defect of poor user experience. Utility Model Content

[0004] The utility model aims to provide an emergency stop mechanism for the central axis of a photographic tripod, wherein a central axis one-way self-locking clamping assembly is arranged between a leg seat assembly and a central axis assembly, and after loosening the expansion locking assembly to move the leg seat assembly to a suitable position of the central axis assembly, the expansion locking assembly is tightened, so that the height of the photographic tripod can be adjusted with one hand.

[0005] The technical solution to achieve the purpose of this utility model is as follows:

[0006] A central axis emergency stop mechanism for a photographic tripod, comprising: a central axis assembly, a leg seat assembly sleeved on the central axis assembly and sliding up and down along the central axis assembly, a central axis one-way self-locking clamping assembly arranged inside the leg seat assembly, and an expansion locking assembly arranged outside the leg seat assembly and penetrating through the leg seat assembly to connect to the central axis one-way self-locking clamping assembly;

[0007] The action of the expansion locking assembly forces the central axis one-way self-locking clamping assembly to clamp the central axis assembly or loosen the central axis assembly.

[0008] As a further improvement of the present utility model, the central axis assembly comprises: a central axis body for the leg seat assembly and the central axis one-way self-locking clamping assembly to be sleeved;

[0009] The leg seat assembly and the central axis one-way self-locking clamping assembly slide along the axial direction of the central axis body.

[0010] As a further improvement of the present invention, the central axis assembly further comprises: a hook disposed at the bottom end of the central axis body, and a connecting piece disposed at the top end of the central axis body;

[0011] The leg support assembly and the central axis one-way self-locking clamping assembly slide along the central axis body between the hook and the connecting piece.

[0012] As a further improvement of the present invention, the leg support assembly comprises: a leg support body arranged along the peripheral wall of the middle axis assembly, and a leg support lining arranged in the inner cavity of the leg support body and sleeved on the middle axis assembly;

[0013] The central axis one-way self-locking clamping assembly is arranged between the leg seat body and the leg seat lining, and the central axis one-way self-locking clamping assembly is connected to the leg seat lining.

[0014] As a further improvement of the present invention, the leg seat assembly further comprises: a plurality of locking reinforcement plates fixedly connected to the inner cavity of the leg seat body, the locking reinforcement plates contacting the central axis one-way self-locking clamping assembly.

[0015] As a further improvement of the utility model, it also includes: an expansion locking component for the central axis one-way self-locking clamping component to open and allow the central axis component to be dragged downward to reduce the height of the leg seat component;

[0016] The expansion locking component contacts and pushes the central axis one-way self-locking clamping component to expand. The expansion locking component is arranged on the outside of the leg seat component, passes through the leg seat component and is connected to the central axis one-way self-locking clamping component.

[0017] As a further improvement of the present invention, the central axis assembly drags the expansion locking assembly upward to disengage from the leg seat assembly and the central axis one-way self-locking clamping assembly.

[0018] As a further improvement of the present invention, the central axis one-way self-locking clamping assembly comprises: an unlocking block installed in the leg seat lining of the leg seat assembly, and a locking column penetrating the unlocking block for clamping or loosening the central axis assembly;

[0019] The locking column contacts the locking reinforcement sheet of the leg seat assembly, and the locking column is located between the locking reinforcement sheet and the central shaft assembly;

[0020] The locking reinforcement sheets are multiple and tilted to form a cone, and the locking column contacts the locking reinforcement sheets to tighten or loosen the central axis assembly.

[0021] As a further improvement of the present invention, the expansion locking assembly comprises: a knob pressing block arranged on the outer peripheral wall of the leg seat assembly, a push-unlocking strip penetrating the knob pressing block and the side wall of the leg seat assembly and extending to the central axis one-way self-locking clamping assembly, and a knob body arranged at the tail of the push-unlocking strip for the operator to twist;

[0022] The head of the push-to-unlock strip passes through the leg base assembly from the outside of the leg base assembly until it extends to the central axis one-way self-locking clamping assembly;

[0023] The knob body is located outside the leg seat assembly.

[0024] As a further improvement of the present utility model, the expansion locking assembly further comprises: an anti-slip strip disposed on the outer peripheral wall of the knob body;

[0025] The anti-slip strip surrounds the outer peripheral wall of the knob body.

[0026] As a further improvement of the present utility model, the expansion locking assembly further comprises: a press-unlock button and an elastic member for the press-unlock button to press;

[0027] The push-to-unlock button is arranged on the end surface of the knob body, and the elastic member is embedded in the cavity of the knob body.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] The utility model arranges the central axis one-way self-locking clamping component between the leg seat component and the central axis component. After loosening the expansion locking component to move the leg seat component to a suitable position of the central axis component, the expansion locking component is tightened, so that the height of the photographic tripod can be adjusted with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of the central axis emergency stop mechanism of a photographic tripod provided by the utility model Figure 1 ;

[0031] Figure 2 A schematic diagram of the structure of the central axis emergency stop mechanism of a photographic tripod provided by the utility model Figure 2 ;

[0032] Figure 3 A schematic diagram of the structure disassembly of the central axis emergency stop mechanism of a photographic tripod provided by the utility model;

[0033] Figure 4 This is a diagram showing a central axis emergency stop mechanism of a photographic tripod provided by the utility model being dragged downward;

[0034] Figure 5This is a diagram showing an emergency stop mechanism of a central axis of a photographic tripod provided by the utility model being dragged upward;

[0035] Figure 6 A diagram showing the locking state of the central axis emergency stop mechanism of a photographic tripod provided by the utility model;

[0036] In the figure, 1-central axis assembly; 2-leg seat assembly; 211-leg seat; 212-locking reinforcement plate; 213-leg seat lining; 221-unlocking block; 222-locking column; 23-cover plate; 24-knob pressure block; 251-knob body; 252-anti-slip strip; 253-press unlocking strip; 254-press unlocking button. DETAILED DESCRIPTION

[0037] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0038] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the invention.

[0039] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] The terms "installed", "connected" and "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 a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0041] See also Figures 1 to 6The embodiment of the utility model provides a central axis emergency stop mechanism for a photographic tripod, comprising: a central axis component 1, a leg seat component 2 which is sleeved on the central axis component 1 and slides up and down along the central axis component 1, a central axis one-way self-locking clamping component arranged inside the leg seat component 2, and an expansion locking component which is arranged on the outside of the leg seat component 2 and passes through the leg seat component 2 and is connected to the central axis one-way self-locking clamping component; the action of the expansion locking component forces the central axis one-way self-locking clamping component to clamp the central axis component 1 or loosen the central axis component 1.

[0042] Please continue reading Figures 1 to 6 The central axis assembly 1 of the embodiment of the utility model includes: a central axis body on which the leg seat assembly 2 and the central axis one-way self-locking clamping assembly are mounted; the leg seat assembly 2 and the central axis one-way self-locking clamping assembly slide along the axial direction of the central axis body.

[0043] Please continue reading Figures 1 to 6 The central axis assembly 1 of the embodiment of the utility model also includes: a hook arranged at the bottom end of the central axis body, and a connecting piece arranged at the top end of the central axis body; the leg seat assembly 2 and the central axis one-way self-locking clamping assembly slide along the central axis body between the hook and the connecting piece.

[0044] Please continue reading Figures 1 to 6 The leg seat assembly 2 of the embodiment of the utility model includes: a leg seat body arranged along the peripheral wall of the central axis assembly 1, and a leg seat liner arranged in the inner cavity of the leg seat body and sleeved on the central axis assembly 1; the central axis one-way self-locking clamping assembly is arranged between the leg seat body and the leg seat liner, and the central axis one-way self-locking clamping assembly is connected to the leg seat liner.

[0045] Please continue reading Figures 1 to 6 The leg support assembly 2 of the utility model embodiment also includes: a plurality of locking reinforcement pieces 212 fixedly connected to the inner cavity of the leg support body, and the locking reinforcement pieces 212 contact the central axis one-way self-locking clamping assembly. The locking reinforcement pieces 212 are tilted, and the plurality of locking reinforcement pieces 212 form a cone that is larger at the top and smaller at the bottom. The locking column 222 contacts the locking reinforcement piece 212, and as the central axis assembly 1 is dragged upward, the locking column 222 moves upward in the area where the locking reinforcement piece is located. After the central axis assembly 1 moves into place, under the action of gravity, the locking column 222 moves downward in the area where the locking reinforcement piece is located. The cone that is larger at the top and smaller at the bottom realizes one-way self-locking clamping of the central axis, thereby fixing the leg support assembly 2 and the central axis assembly 1 relatively. Please continue to refer to Figures 1 to 6The one-way self-locking clamping assembly of the central axis of the embodiment of the utility model includes: an unlocking block 221 installed in the leg seat lining of the leg seat assembly 2, and a locking column 222 that penetrates the unlocking block 221 and is used to clamp or loosen the central axis assembly 1; the locking column 222 contacts the locking reinforcement plate 212 of the leg seat assembly 2, and the locking column 222 is located between the locking reinforcement plate 212 and the central axis assembly 1; the expansion locking assembly is connected to the unlocking block 221, and the expansion locking assembly applies a force to the unlocking block 221 to allow the locking reinforcement plate 212 to lock the central axis assembly 1.

[0046] Please continue reading Figures 1 to 6 The expansion locking assembly of the embodiment of the utility model includes: a knob pressure block 24 arranged on the outer peripheral wall of the leg seat assembly 2, a push-to-release strip 253 that penetrates the knob pressure block 24 and the side wall of the leg seat assembly 2 and extends to the central axis one-way self-locking clamping assembly, and a knob body 251 arranged at the tail of the push-to-release strip 253 for the operator to twist; the head of the push-to-release strip 253 penetrates the leg seat assembly 2 from the outside of the leg seat assembly 2 until it extends to the central axis one-way self-locking clamping assembly; the knob body 251 is located on the outside of the leg seat assembly 2.

[0047] In actual application, the expansion locking assembly of the embodiment of the utility model is used for the central axis one-way self-locking clamping assembly to open and allow the central axis assembly 1 to be dragged downward to lower the height of the leg seat assembly 2. The expansion locking assembly contacts and pushes the central axis one-way self-locking clamping assembly to expand. The expansion locking assembly is arranged on the outside of the leg seat assembly 2 and penetrates the leg seat assembly 2 to connect the central axis one-way self-locking clamping assembly. The central axis assembly 1 drags the expansion locking assembly upward to disengage from the leg seat assembly 2 and the central axis one-way self-locking clamping assembly.

[0048] Please continue reading Figures 1 to 6 The expansion locking assembly of the embodiment of the utility model further includes: an anti-slip strip 252 arranged on the outer peripheral wall of the knob body 251; the anti-slip strip 252 surrounds the outer peripheral wall of the knob body 251.

[0049] Please continue reading Figures 1 to 6 The expansion locking assembly of the embodiment of the utility model further includes: a push-unlock button 254 and an elastic member for pressing the push-unlock button 254 ; the push-unlock button 254 is arranged on the end surface of the knob body 251 , and the elastic member is embedded in the cavity of the knob body 251 .

[0050] In actual application, the central axis assembly 1 of the embodiment of the utility model slides in the leg seat assembly 2; the leg seat 211 is rigidly connected to the locking reinforcement plate 212; the leg seat 211 is rigidly connected to the leg seat lining 213; the leg seat 211 is fixedly connected to the cover plate 23; the unlocking block 221 slides up and down in the leg seat lining 213; the locking column 222 moves back and forth in the groove of the unlocking block 221; the knob pressing block 24 slides in the groove of the leg seat 211; the knob body 251 is fixed to the leg seat 211 by threads, and the knob pressing block 24 can be forced to press the central axis assembly 1 through spiral movement; the push-to-unlock strip 253 slides in the knob body 251; the push-to-unlock button 254 is fixedly connected to the push-to-unlock strip 253 by threads. The middle axis assembly 1 slides in the leg seat assembly, and the middle axis assembly 1 can slide upward steplessly, and is pressed downward by the locking column 222 to achieve self-locking; the middle axis assembly 1 slides in the leg seat assembly 2, and the unlocking column 222 is forced away from the outer wall of the middle axis assembly 1 by pressing the unlocking button 254, so as to achieve free sliding up and down; the middle axis assembly 1 slides in the leg seat assembly 2, and the middle axis assembly 1 can be locked up and down by tightening the knob body 251. When this action is effective, the previous two actions are invalid.

[0051] In the embodiment of the utility model, the central axis one-way self-locking clamping component is arranged between the leg seat component 2 and the central axis component 1. After loosening the expansion locking component to move the leg seat component 2 to a suitable position of the central axis component 1, the expansion locking component is tightened, so that the height of the photographic tripod can be adjusted with one hand.

[0052] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

[0053] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A central axis emergency stop mechanism for a photographic tripod, characterized in that: include: A central axis assembly, a leg support assembly sleeved on the central axis assembly and sliding up and down along the central axis assembly, and a central axis one-way self-locking clamping assembly arranged inside the leg support assembly; The central axis one-way self-locking clamping assembly clamps the central axis assembly or loosens the central axis assembly.

2. The central axis emergency stop mechanism of a photographic tripod according to claim 1, characterized in that: The central axis assembly comprises: a central axis body on which the leg seat assembly and the central axis one-way self-locking clamping assembly are mounted; The leg seat assembly and the central axis one-way self-locking clamping assembly slide along the axial direction of the central axis body.

3. The central axis emergency stop mechanism of a photographic tripod according to claim 2, characterized in that: The central axis assembly further includes: a hook disposed at the bottom end of the central axis body, and a connecting piece disposed at the top end of the central axis body; The leg support assembly and the central axis one-way self-locking clamping assembly slide along the central axis body between the hook and the connecting piece.

4. The central axis emergency stop mechanism of a photographic tripod according to claim 1, characterized in that: The leg support assembly comprises: a leg support body arranged along the peripheral wall of the middle axis assembly, and a leg support lining arranged in the inner cavity of the leg support body and sleeved on the middle axis assembly; The central axis one-way self-locking clamping assembly is arranged between the leg seat body and the leg seat lining, and the central axis one-way self-locking clamping assembly is connected to the leg seat lining.

5. The central axis emergency stop mechanism of a photographic tripod according to claim 4, characterized in that: The leg support base assembly further comprises: a plurality of locking reinforcement plates fixedly connected to the inner cavity of the leg support base body, wherein the locking reinforcement plates contact the central axis one-way self-locking clamping assembly.

6. The central axis emergency stop mechanism of a photographic tripod according to claim 1, characterized in that: Also includes: An expansion locking component for the central axis one-way self-locking clamping component to open and allow the central axis component to be dragged downward to reduce the height of the leg seat component; The expansion locking component contacts and pushes the central axis one-way self-locking clamping component to expand. The expansion locking component is arranged on the outside of the leg seat component, passes through the leg seat component and is connected to the central axis one-way self-locking clamping component.

7. The central axis emergency stop mechanism of a photographic tripod according to claim 6, characterized in that: The central axis assembly drags the expansion locking assembly upward to disengage the leg seat assembly and the central axis one-way self-locking clamping assembly.

8. The central axis emergency stop mechanism of a photographic tripod according to claim 6, characterized in that: The one-way self-locking clamping assembly of the central axis comprises: an unlocking block installed in the leg seat lining of the leg seat assembly, and a locking column penetrating the unlocking block for clamping or loosening the central axis assembly; The locking column contacts the locking reinforcement plate of the leg seat assembly, and the locking column is located between the locking reinforcement plate and the central shaft assembly; The expansion locking assembly is connected to the unlocking block, and the expansion locking assembly applies a force to the unlocking block to allow the locking reinforcement plate to lock the central axis assembly.

9. The central axis emergency stop mechanism of a photographic tripod according to claim 6, characterized in that: The expansion locking assembly comprises: a knob pressing block arranged on the outer peripheral wall of the leg seat assembly, a push-unlocking strip penetrating the knob pressing block and the side wall of the leg seat assembly and extending to the central axis one-way self-locking clamping assembly, and a knob body arranged at the tail of the push-unlocking strip for the operator to twist; The head of the push-to-unlock strip passes through the leg base assembly from the outside of the leg base assembly until it extends to the central axis one-way self-locking clamping assembly; The knob body is located outside the leg seat assembly.

10. The central axis emergency stop mechanism of a photographic tripod according to claim 9, characterized in that: The expansion locking assembly further comprises: an anti-slip strip disposed on the outer peripheral wall of the knob body; The anti-slip strip surrounds the outer peripheral wall of the knob body.

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