Locking mechanism and fishing platform

Abstract

The utility model relates to locking mechanism and install the fishing platform of this locking mechanism, including connecting plate, fixed clamping seat and movable clamping seat, fixed clamping seat and movable clamping seat jointly constitute the space for accommodating support leg, movable clamping seat can be adjusted its position by primary locking device to change movable clamping seat and fixed clamping seat's interval, and then carry out locking or loosening to support leg, movable clamping seat side is equipped with first through -hole, support leg side is provided with the insertion hole, the positioning pin including secondary locking device passes through first through -hole, when movable clamping seat's first through -hole and support leg's insertion hole position correspond, positioning pin is inserted into the insertion hole of support leg under the action of elastic part automatically, and then carries out locking to support leg. Through setting primary locking device, fixed clamping seat and movable clamping seat elastic connection make movable clamping seat can be adjusted its position by primary locking device to change movable clamping seat and fixed clamping seat's interval, and then carry out locking or loosening to support leg.

Description

Technical Field

[0001] This utility model relates to the field of fishing auxiliary tools, and in particular to a locking mechanism and a fishing platform equipped with the locking mechanism. Background Technology

[0002] A fishing platform is a fishing aid that is supported on the shore or near the water's surface. Anglers sit on the platform, either sitting on a chair or other means. It typically has supporting legs and a platform surface; some fishing platforms can also be folded into a case for easy portability.

[0003] For example, Chinese patent application number 202023346560.2, authorized announcement 2021-10-1, titled "Fishing Platform," describes a support platform with a locking device at one end corner. The support leg is fixedly connected to the support platform via the locking device. With the locking device released, the support leg can move axially relative to the support platform; with the locking device fully open, the support leg can be laterally separated from the support platform. Using this solution, the support leg can be directly removed from the side of the support platform by opening the locking device, making it easy to pull the support leg out of the mud. However, this solution only connects the base and pressure plate via an adjusting screw, and fixes the support leg within the circle formed by semicircles one and two by adjusting the relative position of the handle and pressing down the handle. That is, the support leg is fixed solely by the rigid clamping force of the base and pressure plate. When a heavy angler sits on the support platform, the base and pressure plate are prone to relative sliding with the support leg, causing the support platform to tilt, thus creating a danger. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a locking mechanism and fishing platform that can firmly press the support leg and provide secondary safety protection measures in case of danger.

[0005] To achieve the above objectives, this utility model provides a locking mechanism, comprising a connecting plate, a fixed bracket, and a movable bracket. The fixed bracket is fixed within the connecting plate, and the fixed bracket and the movable bracket together form a space for accommodating a support leg. The movable bracket can be adjusted in position by a primary locking device to change the distance between the movable bracket and the fixed bracket, thereby locking or releasing the support leg. The movable bracket has a first through hole on its side, and the support leg has an insertion hole on its side. A positioning pin included in the secondary locking device passes through the first through hole. When the first through hole of the movable bracket corresponds to the insertion hole of the support leg, the positioning pin automatically inserts into the insertion hole of the support leg under the action of an elastic component, thereby locking the support leg.

[0006] Normally, the movable bracket is pressed by the primary locking device, which engages with the fixed bracket to clamp the support leg. At this time, the end of the positioning pin of the secondary locking device contacts the outside of the support leg but does not lock it. When a heavier angler sits on the support platform, the movable and fixed brackets slide relative to the support leg. When they slide to the position where the support leg has an insertion hole, that is, when the first through hole of the movable bracket corresponds to the insertion hole of the support leg, the positioning pin of the secondary locking device automatically inserts into the insertion hole under the action of the elastic component, locking the support leg and preventing the support platform from tilting further and causing a dangerous accident.

[0007] Furthermore, the connecting plate has a screw hole on its side; the primary locking device includes a rotating clamping column screwed into the screw hole; the outer end of the rotating clamping column is an external multi-faceted nut adapted to the handle, the middle part of which has a thread screwed into the screw hole, and its inner end is a plug body inserted into the first through hole; a check block is provided between the plug body and the middle part. By rotating the handle, the rotating clamping column can rotate within the screw hole of the connecting plate, thereby pressing or releasing the movable retaining seat with the inner end of the rotating clamping column, thus clamping or releasing the support leg. The plug body is inserted into the first through hole, thereby positioning the movable retaining slot. The check block prevents the rotating clamping column from being rotated out of the screw hole of the connecting plate when the handle is rotated; in addition, the check block presses against the outer side of the movable retaining seat, preventing the movable retaining seat from moving away from the fixed retaining seat.

[0008] Furthermore, the secondary locking device includes a positioning pin, a compression spring, a compression spring screw, and a positioning pin head; the positioning pin has a protruding part at its end, a compression spring passing through its middle, and an external thread at its top; the compression spring screw is screwed into the rotating clamping column, and the positioning pin passes through the compression spring screw, with the compression spring located between the protruding part at the end of the compression spring screw and the end of the positioning pin; the positioning pin head and the top of the compression spring screw are provided with a concave-convex fit, and the positioning pin head is screwed into the top of the positioning pin.

[0009] The locating pin has a protruding part at its end, making its end diameter larger than the diameter of the middle part of the locating pin. A compression spring is held between the end of the locating pin and the end of the compression spring screw. The compression spring screw is screwed into the rotating clamping column. The top of the locating pin passes through the compression spring screw and screws into the locating pin head. The end of the locating pin passes through the first through hole on the side of the movable bracket and contacts the side of the support leg. In normal use, the protruding part of the locating pin head is rotated to the concave part at the top of the compression spring screw, and the end of the locating pin abuts against the side of the support leg. When a heavier angler sits on the support platform, the movable bracket and the fixed bracket slide relative to the support leg. When they slide to the position where the support leg has an insertion hole, i.e., when the first through hole of the movable bracket aligns with the insertion hole of the support leg, the locating pin of the secondary locking device automatically inserts into the insertion hole under the action of the compression spring, locking the support leg and preventing further tilting of the support platform that could cause a dangerous accident. When the support leg needs to be pulled out of the locking mechanism, first rotate the protrusion of the positioning pin head to the top of the pressure spring screw, and pull the end of the positioning pin out of the insertion hole of the support leg; then rotate the handle to move the rotating clamping column away from the movable bracket, and then the movable bracket moves away from the fixed bracket under the action of the spring, releasing the support leg.

[0010] Furthermore, the inner end of the handle has an inner polygonal structure, which is adapted to the outer polygonal nut of the rotating clamping column; the outer end of the handle has an inner circular structure, which is adapted to the top of the spring screw. The inner polygonal structure of the inner end of the handle is adapted to the outer polygonal nut of the outer end of the rotating clamping column, so that the handle is installed on the outside of the outer polygonal nut of the outer end of the rotating clamping column, which facilitates the handle to drive the rotating clamping column to rotate. In use, the top of the spring screw is embedded in the inner circular structure of the outer end of the handle, pressing the inner hexagonal edge of the handle, thereby preventing the handle from shaking.

[0011] Furthermore, both the fixed and movable brackets have second through holes at both ends, and springs are installed at the corresponding positions of the second through holes between the two ends. A pin passes through the second through hole and the spring, and a pin is inserted into the pin hole at the end of the pin. Turning the handle can drive the rotating clamping column to rotate, thereby pressing the check block against the outer side of the movable bracket, thus reducing the distance between the movable bracket and the fixed bracket and locking the support leg. Turning the handle in the opposite direction causes the rotating clamping column to move away from the movable bracket, and then the movable bracket moves away from the fixed bracket under the action of the spring, releasing the support leg.

[0012] Furthermore, the fixed card holder is provided with a semi-circular arc-shaped card groove, and the movable card holder is provided with a concave card groove; the shape formed by the fixed card holder and the movable card holder together matches the shape of the support leg; the support leg is provided with a slide rail adapted to the concave card groove of the movable card holder; the insertion hole is provided on the slide rail.

[0013] The movable bracket is equipped with a concave groove that matches the slide rail of the support leg, which increases the clamping area between the support leg and the movable bracket and facilitates a firm clamping. In addition, the surface of the support leg that contacts the rotating clamping column is flat, which makes it easy for the check block to apply force to the side of the support leg for clamping. Furthermore, there are insertion holes on the flat slide rail, which facilitates the insertion of the end of the positioning pin into the insertion hole.

[0014] On the other hand, this utility model provides a fishing platform using the locking mechanism, wherein the locking mechanism is fixed to the corner of the support platform by a connecting plate.

[0015] The present invention has the following beneficial effects: (1) The movable card seat is set as a concave card groove, which increases the clamping area between the support leg and the movable card seat, which is conducive to clamping firmly; in addition, the surface of the support leg in contact with the rotating pressing column is a plane, which makes it easy for the anti-return block of the rotating pressing column to apply force to the side of the support leg to clamp it.

[0016] (2) By setting a primary locking device, the fixed card seat and the movable card seat are elastically connected, so that the position of the movable card seat can be adjusted by the primary locking device to change the distance between the movable card seat and the fixed card seat, thereby locking or loosening the support leg.

[0017] (3) A second locking device is provided on the basis of the first locking device and an insertion hole is provided on the side of the support leg; when a heavy angler sits on the support platform, the movable card and the fixed card slide relative to the support leg. When the sliding reaches the position where the support leg has an insertion hole, the positioning pin of the secondary locking device is automatically inserted into the insertion hole under the action of the compression spring, which locks the support leg and prevents the support platform from tilting further and causing a dangerous accident. Attached Figure Description

[0018] Figure 1 This is an exploded view of the locking mechanism;

[0019] Figure 2 This is a schematic diagram of the locking mechanism;

[0020] Figure 3 This is a schematic diagram of the rotating clamping column;

[0021] Figure 4 This is a diagram of a locating pin;

[0022] Figure 5 This is a schematic diagram of the positioning pin.

[0023] Figure 6 This is a schematic diagram of a spring screw;

[0024] Figure 7 This is a diagram of a fishing platform;

[0025] Figure 8 This is a schematic diagram of the handle;

[0026] Figure 9 Exploded view of the supporting leg, movable bracket, and connecting plate;

[0027] Figure 10 This is a schematic diagram of the assembly of the support legs, movable brackets, and connecting plates.

[0028] 1. Connecting plate; 11. Screw holes;

[0029] 2. Fixed card slot;

[0030] 3. Movable bracket; 31. First through hole; 32. Spring; 33. Pin; 34. Pin; 35. Second through hole;

[0031] 4. Support leg; 41. Socket; 42. Slide rail;

[0032] 5. Primary locking device; 51. Rotary clamping column; 52. Handle; 53. Check block; 54. Plug body;

[0033] 6. Secondary locking device; 61. Positioning pin; 62. Compression spring; 63. Compression spring screw; 64. Positioning pin head;

[0034] 7. Support platform. Detailed Implementation

[0035] The preferred embodiment of this utility model will be further described below with reference to the accompanying drawings:

[0036] On one hand, this application provides a locking mechanism, including a connecting plate 1, a fixed bracket 2, and a movable bracket 3. The fixed bracket 2 is fixed inside the connecting plate 1. The fixed bracket 2 is provided with a semi-circular arc-shaped slot, and the movable bracket 3 is provided with a concave slot. The fixed bracket 2 and the movable bracket 3 together form a space for accommodating a support leg 4, the shape of which matches the shape of the support leg 4. The support leg 4 is provided with a slide rail 42 that is adapted to the concave slot of the movable bracket 3.

[0037] The locking mechanism is equipped with a primary locking device 5:

[0038] The connecting plate 1 has a screw hole 11 on its side; the primary locking device 5 includes a rotating clamping column 51 that is screwed into the screw hole 11; the outer end of the rotating clamping column 51 is an external polygonal nut that is adapted to the handle 52, preferably an external hexagonal nut, and the middle part is provided with a thread that is screwed into the screw hole 11, and its inner end is a plug body 54 that is inserted into the first through hole 31; a check block 53 is provided between the plug body 54 and the middle part.

[0039] Both ends of the fixed bracket 2 and the movable bracket 3 are provided with second through holes 35, and springs 32 are installed between the two ends corresponding to the positions of the second through holes 35. The pin 33 passes through the second through holes 35 and the springs 32, and a pin 34 is inserted into the pin hole at the end of the pin 33.

[0040] The locking mechanism is equipped with a secondary locking device 6 in addition to the primary locking device:

[0041] The secondary locking device 6 includes a positioning pin 61, a compression spring 62, a compression spring screw 63, and a positioning pin head 64. The positioning pin 61 has a protruding end, through which the compression spring 62 passes, and an external thread at its top. The compression spring screw 63 is screwed into the rotating clamping column 51, and the positioning pin 61 passes through the compression spring screw 63. The compression spring 62 is located between the end of the compression spring screw 63 and the end of the positioning pin 61. The positioning pin head 64 is configured to engage with the top of the compression spring screw 63, and is screwed into the top of the positioning pin 61. The slide rail 42 of the support leg has an insertion hole 41; the movable bracket 3 has a first through hole 31 on its side.

[0042] The inner end of the handle 52 has an internal multi-faceted structure, preferably an internal hexagonal structure, which is adapted to the external multi-faceted nut at the outer end of the rotating clamping column 51; the outer end of the handle 52 has an internal circular structure, which is adapted to the top of the spring screw 63. The internal hexagonal shape of the inner end of the handle 52 is adapted to the external multi-faceted nut at the outer end of the rotating clamping column 51, so that the handle 52 is installed on the outside of the external multi-faceted nut at the outer end of the rotating clamping column 51, which facilitates the handle 52 to drive the rotating clamping column 51 to rotate. In use, the top of the spring screw 63 is embedded in the internal circular structure of the outer end of the handle 52, pressing the internal hexagonal edge of the handle 52, thereby preventing the handle 52 from shaking.

[0043] In normal use, rotating the handle 52 causes the rotating clamping column 51 to rotate within the screw hole 11 of the connecting plate 1, and the plug body 54 is inserted into the first through hole 31 and rotates accordingly; thereby, the check block 53 of the rotating clamping column 51 presses or releases the movable retainer 3, thus clamping or releasing the support leg 4. Rotating the protrusion of the positioning pin head 64 to the concave part at the top of the compression spring screw 63, the end of the positioning pin 61 abuts against the side of the support leg 4; at this time, the end of the positioning pin 61 of the secondary locking device 6 contacts the slide rail 42 on the outside of the support leg 4 but does not play a locking role;

[0044] In an emergency: When a heavy angler sits on the support platform 7, the movable bracket 3 and the fixed bracket 2 slide relative to the support leg 4. When the first through hole 31 of the movable bracket 3 corresponds to the position of the support leg insertion hole 41, the positioning pin 61 is automatically inserted into the insertion hole 41 under the action of the compression spring 62, which locks the support leg 4 and prevents the support platform 7 from tilting further and causing a dangerous accident.

[0045] After use: When it is necessary to pull the support leg 4 out of the locking mechanism, first rotate the protrusion of the positioning pin head 64 to the top of the spring screw 63, and pull the end of the positioning pin 61 out of the insertion hole 41 of the support leg; then rotate the handle 52 in the opposite direction to move the rotating clamping column 51 away from the movable card seat 3, and then the movable card seat 3 moves away from the fixed card seat 2 under the action of the spring 32, thus releasing the support leg 4.

[0046] On the other hand, this application provides a fishing platform in which the locking mechanism is fixed to the end corner of the support platform 7 by a connecting plate 1.

[0047] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A locking mechanism, comprising a connecting plate (1), a fixed bracket (2), and a movable bracket (3), wherein the fixed bracket (2) is fixed within the connecting plate (1), and the fixed bracket (2) and the movable bracket (3) together constitute a space for accommodating a support leg (4); characterized in that: The position of the movable card holder (3) can be adjusted by the primary locking device (5) to change the distance between the movable card holder (3) and the fixed card holder (2), thereby locking or releasing the support leg (4); the movable card holder (3) has a first through hole (31) on its side, and the support leg has an insertion hole (41) on its side; the positioning pin (61) included in the secondary locking device (6) passes through the first through hole (31). When the first through hole (31) of the movable card holder (3) corresponds to the insertion hole (41) of the support leg (4), the positioning pin (61) automatically inserts into the insertion hole (41) of the support leg under the action of the elastic component, thereby locking the support leg (4).

2. The locking mechanism according to claim 1, characterized in that: The connecting plate (1) has a screw hole (11) on its side; the primary locking device (5) includes a rotating clamping column (51) that is screwed into the screw hole (11); the outer end of the rotating clamping column (51) is an external multi-faceted nut that is adapted to the handle (52), the middle part of which is provided with a thread that is screwed into the screw hole (11), and the inner end of which is a plug body (54) that is inserted into the first through hole (31); a check block (53) is provided between the plug body (54) and the middle part.

3. The locking mechanism according to claim 2, characterized in that: The secondary locking device (6) includes a positioning pin (61), a compression spring (62), a compression spring screw (63), and a positioning pin head (64). The positioning pin (61) has a protruding part at its end and a compression spring (62) passing through it in the middle. The top of the positioning pin (61) is provided with an external thread. The compression spring screw (63) is screwed into the rotating clamping column (51) and the positioning pin (61) passes through the compression spring screw (63). The compression spring (62) is located between the protruding part at the end of the compression spring screw (63) and the end of the positioning pin (61). The positioning pin head (64) is provided with a concave-convex fit with the top of the compression spring screw (63) and the positioning pin head (64) is screwed into the top of the positioning pin (61).

4. The locking mechanism according to claim 3, characterized in that: The inner end of the handle (52) has an inner polygonal structure, which is adapted to the outer polygonal nut of the outer end of the rotating clamping column (51); the outer end of the handle (52) has an inner circular structure, which is adapted to the top of the compression spring screw (63).

5. The locking mechanism according to claim 1, characterized in that: Both ends of the fixed bracket (2) and the movable bracket (3) are provided with a second through hole (35), and a spring (32) is installed between the two ends corresponding to the position of the second through hole (35). The pin (33) passes through the second through hole (35) and the spring (32), and a pin (34) is inserted into the pin hole at the end of the pin (33).

6. The locking mechanism according to claim 2, characterized in that: The fixed card holder (2) is provided with a semi-circular arc-shaped card groove, and the movable card holder (3) is provided with a concave card groove; the shape formed by the fixed card holder (2) and the movable card holder (3) matches the shape of the support leg (4); the support leg (4) is provided with a slide rail (42) adapted to the concave card groove of the movable card holder (3); the insertion hole (41) is provided on the slide rail (42).

7. A fishing platform using the locking mechanism according to any one of claims 1-6, characterized in that, The locking mechanism is fixed to the end corner of the support platform (7) by the connecting plate (1).

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