A simple pipe locking structure and photographic bracket

Abstract

This utility model discloses a simple tube locking structure and a photographic bracket. The tube locking structure includes a first leg tube assembly, a second leg tube assembly, a third leg tube assembly, a first base, a second base, and a third base. It also includes a latch, a pressure plate, a first drive block, a second drive block, a pull rod, and a locking component. The latch and pressure plate work together to lock or release the first leg tube assembly from the second leg tube assembly, and the latch, the first drive block, the second drive block, the pull rod, and the locking component work together to lock or release the second leg tube assembly from the third leg tube assembly. The structure has few parts and a compact layout, which not only reduces assembly difficulty and production costs, but also reduces the fit error between parts, improves the overall reliability of the structure, and facilitates disassembly and replacement of parts during later maintenance.

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment, and in particular to a simple tube locking structure and photographic bracket. Background Technology

[0002] In the field of photographic equipment, tube-mounted camera stands are a key tool for supporting photographic equipment. Their popularity stems from the fact that arranging some tubes on both sides reduces the complexity of connecting individual legs and facilitates the layout of locking mechanisms between different leg levels. However, existing lever-type tube-mounted camera stands suffer from a complex locking structure. Typically, the lever generates power, requiring two power conversions to simultaneously lock and release the legs. Furthermore, the lever is connected to the leg seat via a hinge shaft, with the power conversion component serving as the support point for power transmission. This structure makes the locking mechanism of the tube-mounted camera stand complex, resulting in higher material costs and a more complicated assembly process. Therefore, a simplified tube-mounted locking structure and camera stand are urgently needed to solve these problems. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a simple pipe locking structure and a photographic bracket.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a simple pipe locking structure, including a first leg tube assembly, a second leg tube assembly, a third leg tube assembly, a first base, a second base and a third base. The first leg tube assembly, the second leg tube assembly and the third leg tube assembly are sequentially sleeved and can slide axially. The first base is disposed on the upper end of the second leg tube assembly and is slidably connected to the first leg tube assembly. The second leg tube assembly passes through the second base which is fixedly disposed on the lower end of the first leg tube assembly. The third base is installed on the lower end of the second leg tube assembly. It also includes a buckle, a pressure plate, a first driving block, a second driving block, a pull rod and a locking component. The front side of the first base has a support groove and the rear side has a locking groove. The middle section of the first base has a first movable groove and a second movable groove. The first movable groove is connected to the support groove, and the second movable groove is connected to the first movable groove and extends downward. The lever is rotatably connected to the support groove and has a lockable and unlocked state that can be switched between each other; The pressure plate is movably positioned within the locking groove and connected to the latch; The first drive block is disposed in the first movable slot and abuts against the latch; The second drive block is disposed in the second movable slot and abuts against the first drive block; The pull rod passes through the second leg tube assembly and one end is connected to the second drive block; The locking component is mounted on the third base and abuts against the other end of the pull rod; When locked, the latch can drive the pressure plate to press against the first leg assembly to restrict the axial movement between the second leg assembly and the first leg assembly, and drive the locking assembly through the first drive block, the second drive block and the pull rod to restrict the axial movement between the third leg assembly and the second leg assembly; or, when unlocked, the latch can drive the pressure plate to separate from the first leg assembly, so that the second leg assembly can move axially relative to the first leg assembly, and drive the locking assembly through the first drive block, the second drive block and the pull rod to release the restriction on the axial movement between the third leg assembly and the second leg assembly.

[0005] As one of the preferred embodiments of this utility model, the first driving block is provided with an clearance groove with an upper opening and a through groove communicating with the clearance groove. The through groove is connected to the lower end of the first driving block. The pull rod is connected to the second driving block through the through groove. The clearance groove is provided with a first inclined surface, and the second driving block is provided with a second inclined surface that abuts against the first inclined surface.

[0006] As one of the preferred embodiments of this utility model, a first reset member is provided between the first driving block and the first base or pressure plate.

[0007] As one of the preferred embodiments of this utility model, a simple pipe locking structure further includes a connecting shaft and a connecting rod. The connecting shaft is rotatably mounted on the buckle, and one end of the connecting rod is connected to the connecting shaft and the other end is connected to the pressure plate.

[0008] As one of the preferred embodiments of this utility model, the buckle is provided with an eccentric protrusion that abuts against the bottom surface of the support groove. The eccentric protrusion has a distal end and a proximal end. The buckle can be locked when the distal end abuts against the bottom surface of the support groove, or the buckle can be unlocked when the proximal end abuts against the bottom surface of the support groove.

[0009] As one of the preferred embodiments of this utility model, the locking component includes a wedge and a second reset member. The wedge abuts against the third foot tube assembly. A third inclined surface is provided on the side of the wedge facing away from the third foot tube assembly. A fourth inclined surface is provided on the third base, which abuts against the third inclined surface. The second reset member is disposed between the wedge and the third base.

[0010] As one of the preferred embodiments of this utility model, the first foot tube assembly includes a first fixed tube and a second fixed tube, the second foot tube assembly includes a first telescopic tube, and the third foot tube assembly includes a second telescopic tube. The first fixed tube and the second fixed tube are arranged on both sides of the first telescopic tube, and the second telescopic tube is inserted into the first telescopic tube.

[0011] As one of the preferred embodiments of this utility model, a linkage channel is formed between the inner wall of the first telescopic tube and the outer wall of the second telescopic tube, and the pull rod passes through the linkage channel.

[0012] As one of the preferred embodiments of this utility model, the pressure plate is provided with a pressing groove that is adapted to the first leg tube assembly.

[0013] A photographic support, including the aforementioned tube locking structure.

[0014] The beneficial effects of this utility model are as follows: A simple tube locking structure and photographic bracket, the tube locking structure includes a first leg tube assembly, a second leg tube assembly, a third leg tube assembly, a first base, a second base, and a third base, and also includes a latch, a pressure plate, a first drive block, a second drive block, a pull rod, and a locking component; the locking or releasing between the first leg tube assembly and the second leg tube assembly is achieved through the cooperation of the latch and the pressure plate, and the locking or releasing between the second leg tube assembly and the third leg tube assembly is achieved through the cooperation of the latch, the first drive block, the second drive block, the pull rod, and the locking component. The number of parts is small and the layout is compact, which not only reduces the assembly difficulty and production cost, but also reduces the matching error between parts, improves the overall reliability of the structure, and facilitates disassembly and replacement of parts during later maintenance. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a simple pipe locking structure; Figure 2 An exploded view of a simple pipe locking structure; Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 A first cross-sectional view of a simple pipe locking structure; Figure 5 for Figure 4 A magnified view of a portion of region B in the middle; Figure 6 This is a second cross-sectional view of a simple pipe-locking structure; Figure 7 for Figure 6 A magnified view of a portion of region C in the middle; Figure 8 for Figure 6 A magnified view of a portion of region D. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Reference Figures 1-8 This utility model provides a simple pipe locking structure, including a first leg assembly 110, a second leg assembly 120, a third leg assembly 130, a first base 210, a second base 220, and a third base 230. The first leg assembly 110, the second leg assembly 120, and the third leg assembly 130 are sequentially sleeved and can slide axially. The first base 210 is disposed on the upper end of the second leg assembly 120 and is slidably connected to the first leg assembly 110. The second leg assembly 120 passes through the second base 220, which is fixedly disposed on the lower end of the first leg assembly 110. The third base 230 is installed on the lower end of the second leg assembly 120. It also includes a buckle 300, a pressure plate 400, a first drive block 510, a second drive block 520, a pull rod 600, and a locking component 700. The first base 210 has a support groove 211 on the front side and a locking groove 212 on the rear side. The first movable groove 213 and the second movable groove 214 are formed in the middle section of the first base 210. The first movable groove 213 is connected to the support groove 211, and the second movable groove 214 is connected to the first movable groove 213 and extends downward. The latch 300 is rotatably connected to the support groove 211 and has a lockable and unlocked state that can be switched between each other; The pressure plate 400 is movably disposed within the locking groove 212 and connected to the latch 300; The first drive block 510 is disposed in the first movable groove 213 and abuts against the latch 300; The second drive block 520 is disposed in the second active slot 214 and abuts against the first drive block 510; The pull rod 600 passes through the second leg tube assembly 120 and one end is connected to the second drive block 520; The locking component 700 is disposed on the third base 230 and abuts against the other end of the pull rod 600; When locked, the latch 300 can drive the pressure plate 400 to press against the first leg assembly 110 to restrict the axial movement between the second leg assembly 120 and the first leg assembly 110, and drive the locking assembly 700 through the first drive block 510, the second drive block 520 and the pull rod 600 to restrict the axial movement between the third leg assembly 130 and the second leg assembly 120; or, when unlocked, the latch 300 can drive the pressure plate 400 to separate from the first leg assembly 110 so that the second leg assembly 120 can move axially relative to the first leg assembly 110, and drive the locking assembly 700 through the first drive block 510, the second drive block 520 and the pull rod 600 to release the restriction on the axial movement between the third leg assembly 130 and the second leg assembly 120.

[0021] In this utility model, reference is made to Figures 1-8 Preferably, the first leg tube assembly 110 includes a first fixed tube 111 and a second fixed tube 112, the second leg tube assembly 120 includes a first telescopic tube 121, and the third leg tube assembly 130 includes a second telescopic tube 131. The first fixed tube 111 and the second fixed tube 112 are arranged on both sides of the first telescopic tube 121, and the second telescopic tube 131 is inserted into the first telescopic tube 121. Further, the first base 210 is fixedly installed on the upper end of the second telescopic tube 131 and passes through the first fixed tube 111 and the second fixed tube 112, the second base 220 is fixedly installed on the lower end of the first fixed tube 111 and the second fixed tube 112, the third base 230 is fixedly installed on the lower end of the first telescopic tube 121, and the upper end of the first telescopic tube 121 is fixedly installed on the first base 210.

[0022] When the bracket needs to be locked, the latch 300 is operated to enter the locked state. At this time, the latch 300 will rotate with the bottom surface of the support groove 211 as support, thereby pushing the first drive block 510 to move inward. In some embodiments, the first drive block 510 is provided with an upper opening clearance groove 511 and a through groove 512 communicating with the clearance groove 511. The through groove 512 communicates with the lower end of the first drive block 510. The pull rod 600 is connected to the second drive block 520 through the through groove 512. The clearance groove 511 is provided with a first inclined surface 513. Block 520 is provided with a second inclined surface 514 that abuts against the first inclined surface 513. The cooperation of the first inclined surface 513 and the second inclined surface 514 pushes the second drive block 520 to move upward, thereby driving the pull rod 600 to move upward. The locking component 700 will enter the locking state, thereby locking the second telescopic tube 131. At the same time, the latch 300 will pull the pressure plate 400 to move inward until it abuts against the first fixed tube 111 and the second fixed tube 112, thereby locking the first telescopic tube 121 and completing the synchronous locking of the two-stage foot tube assembly.

[0023] When the bracket needs to be unlocked, the latch 300 is operated to enter the unlocked state. At this time, the latch 300 will rotate in the opposite direction with the bottom surface of the support groove 211 as support, releasing the pushing action on the first drive block 510. In some embodiments, a first reset member 530 is provided between the first drive block 510 and the first base 210 or pressure plate 400. The first reset member 530 pushes the first drive block 510 outward, thereby releasing the pushing action on the second drive block 520. The second drive block 520 and the pull rod 600 automatically reset downward under the action of gravity, and the locking component 700 will enter the unlocked state, thereby releasing the lock on the second telescopic tube 131. At the same time, the first reset member 530 will also push the pressure plate 400 outward until it separates from the first fixed tube 111 and the second fixed tube 112, thereby releasing the lock on the first telescopic tube 121 and completing the synchronous unlocking of the two-stage foot tube assembly.

[0024] Reference Figures 2-7In some embodiments, a simple pipe locking structure further includes a connecting shaft 810 and a connecting rod 820. The connecting shaft 810 is rotatably mounted on the latch 300, and one end of the connecting rod 820 is connected to the connecting shaft 810, while the other end is connected to the pressure plate 400. Furthermore, the latch 300 is provided with an eccentric protrusion 310 that abuts against the bottom surface of the support groove 211. The eccentric protrusion 310 has a distal end and a proximal end. When the latch 300 rotates to the point where its distal end abuts against the bottom surface of the support groove 211... The latch 300 is in a locked state, or it can be in an unlocked state when it rotates to the point where its proximal end abuts against the bottom surface of the support groove 211. Specifically, when the latch 300 rotates, it will rotate relative to the connecting shaft 810. By switching the stroke when the eccentric protrusion 310 abuts against the bottom surface of the support groove 211, the latch 300 can make a slight displacement inward or outward, which in turn pulls the pressure plate 400 inward through the connecting rod 820, and at the same time pushes the first drive block 510 inward.

[0025] Reference Figure 4 , Figure 6 and Figure 8 In some embodiments, the locking assembly 700 includes a wedge 710 and a second reset member 720. The wedge 710 abuts against the third leg assembly 130. A third inclined surface 730 is provided on the side of the wedge 710 facing away from the third leg assembly 130. A fourth inclined surface 740 is provided on the third base 230, abutting against the third inclined surface 730. The second reset member 720 is disposed between the wedge 710 and the third base 230. Specifically, when the pull rod 600 moves upward, it will drive the wedge 710 to move upward synchronously, through the third inclined surface 740. The cooperation of surface 730 and fourth inclined surface 740 causes wedge 710 to make a slight radial displacement toward second telescopic tube 131, thereby pressing against second telescopic tube 131 and restricting its axial movement with first telescopic tube 121, thus achieving locking; when latch 300 releases the force on pull rod 600, pull rod 600 will move downward under its own weight and the action of second reset member 720, wedge 710 will make a slight radial displacement away from second telescopic tube 131, releasing the contact with second telescopic tube 131, thus achieving unlocking.

[0026] Reference Figures 6-8 In some embodiments, a linkage channel 900 is formed between the inner wall of the first telescopic tube 121 and the outer wall of the second telescopic tube 131, and the pull rod 600 passes through the linkage channel 900.

[0027] Reference Figure 4 , Figure 6 and Figure 8 In some embodiments, the pressure plate 400 is provided with a pressure groove 410 adapted to the first leg tube assembly 110.

[0028] This utility model also provides a photography bracket, including the aforementioned tube locking structure.

[0029] The advantages of this utility model are: the locking or releasing between the first leg tube assembly and the second leg tube assembly is achieved through the cooperation of the buckle and the pressure plate, and the locking or releasing between the second leg tube assembly and the third leg tube assembly is achieved through the cooperation of the buckle, the first drive block, the second drive block, the pull rod and the locking assembly. The number of parts is small and the layout is compact, which not only reduces the assembly difficulty and production cost, but also reduces the matching error between parts, improves the overall reliability of the structure, and facilitates disassembly and replacement of parts during later maintenance.

[0030] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A simple pipe locking structure, comprising a first leg assembly (110), a second leg assembly (120), a third leg assembly (130), a first base (210), a second base (220), and a third base (230), wherein the first leg assembly (110), the second leg assembly (120), and the third leg assembly (130) are sequentially sleeved and axially slidable, the first base (210) is disposed on the upper end of the second leg assembly (120) and slidably connected to the first leg assembly (110), the second leg assembly (120) passes through the second base (220) fixedly disposed on the lower end of the first leg assembly (110), and the third base (230) is mounted on the lower end of the second leg assembly (120), characterized in that: It also includes a lever (300), a pressure plate (400), a first drive block (510), a second drive block (520), a pull rod (600), and a locking assembly (700); The first base (210) has a support groove (211) on its front side and a locking groove (212) on its rear side. The first base (210) has a first movable groove (213) and a second movable groove (214) in its middle section. The first movable groove (213) is connected to the support groove (211), and the second movable groove (214) is connected to the first movable groove (213) and extends downward. The latch (300) is rotatably connected to the support groove (211) and has a lockable state and an unlocked state that can be switched between each other; The pressure plate (400) is movably disposed within the locking groove (212) and connected to the latch (300); The first drive block (510) is disposed in the first movable slot (213) and abuts against the latch (300); The second drive block (520) is disposed in the second movable slot (214) and abuts against the first drive block (510); The pull rod (600) passes through the second leg tube assembly (120) and one end is connected to the second drive block (520); The locking component (700) is disposed on the third base (230) and abuts against the other end of the pull rod (600); When locked, the latch (300) can drive the pressure plate (400) to press against the first leg assembly (110) to restrict the axial movement between the second leg assembly (120) and the first leg assembly (110), and drive the locking assembly (700) through the first drive block (510), the second drive block (520) and the pull rod (600) to restrict the axial movement between the third leg assembly (130) and the second leg assembly (120); or, when unlocked, the latch (300) can drive the pressure plate (400) to separate from the first leg assembly (110) so that the second leg assembly (120) can move axially relative to the first leg assembly (110), and drive the locking assembly (700) through the first drive block (510), the second drive block (520) and the pull rod (600) to release the restriction on the axial movement between the third leg assembly (130) and the second leg assembly (120).

2. The simplified pipe locking structure according to claim 1, characterized in that: The first drive block (510) is provided with an upper opening clearance groove (511) and a through groove (512) communicating with the clearance groove (511). The through groove (512) is connected to the lower end of the first drive block (510). The pull rod (600) is connected to the second drive block (520) through the through groove (512). The clearance groove (511) is provided with a first inclined surface (513). The second drive block (520) is provided with a second inclined surface (514) abutting against the first inclined surface (513).

3. The simplified pipe locking structure according to claim 1, characterized in that: A first reset member (530) is provided between the first drive block (510) and the first base (210) or the pressure plate (400).

4. The simplified pipe locking structure according to claim 1, characterized in that: It also includes a connecting shaft (810) and a connecting rod (820), the connecting shaft (810) being rotatably mounted on the buckle (300), one end of the connecting rod (820) being connected to the connecting shaft (810) and the other end being connected to the pressure plate (400).

5. The simplified pipe locking structure according to claim 1, characterized in that: The latch (300) is provided with an eccentric protrusion (310) that abuts against the bottom surface of the support groove (211). The eccentric protrusion (310) has a distal end and a proximal end. The latch (300) can be locked when the distal end abuts against the bottom surface of the support groove (211), or the latch (300) can be unlocked when the proximal end abuts against the bottom surface of the support groove (211).

6. The simplified pipe locking structure according to claim 1, characterized in that: The locking assembly (700) includes a wedge (710) and a second reset member (720). The wedge (710) abuts against the third foot tube assembly (130). A third inclined surface (730) is provided on the side of the wedge (710) facing away from the third foot tube assembly (130). A fourth inclined surface (740) is provided on the third base (230) abutting against the third inclined surface (730). The second reset member (720) is disposed between the wedge (710) and the third base (230).

7. The simplified pipe locking structure according to claim 1, characterized in that: The first leg tube assembly (110) includes a first fixed tube (111) and a second fixed tube (112), the second leg tube assembly (120) includes a first telescopic tube (121), and the third leg tube assembly (130) includes a second telescopic tube (131). The first fixed tube (111) and the second fixed tube (112) are arranged on both sides of the first telescopic tube (121), and the second telescopic tube (131) is inserted into the first telescopic tube (121).

8. A simplified pipe-locking structure according to claim 7, characterized in that: A linkage channel (900) is formed between the inner wall of the first telescopic tube (121) and the outer wall of the second telescopic tube (131), and the pull rod (600) passes through the linkage channel (900).

9. A simplified pipe-locking structure according to claim 1, characterized in that: The pressure plate (400) is provided with a pressure groove (410) that is adapted to the first foot tube assembly (110).

10. A photographic stand, characterized in that: Includes the pipe locking structure as described in any one of claims 1-9.

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