A storm lock device

Abstract

The utility model relates to a storm lock device in the technical field of crane safety locking, comprising a locking pin, a base and a swivel member rotatably mounted on the base; upper and lower corresponding positioning plates and pressure plates are fixed to the outer wall of the base, the plate surface of the positioning plate is provided with a through hole adapted for the locking pin to movably pass through, a thrust ring is installed at the upper end of the locking pin, a spring is outerly arranged on the pin body of the locking pin between the thrust ring and the positioning plate, a lever is connected to the outer wall of the lower end of the locking pin, the outer end of the lever is positively hooked on the outer end of the pressure plate so that the locking pin moves downward and the spring is in a compressed state; upper and lower corresponding impact rods and locking plates are fixed to the outer wall of the swivel member, the plate surface of the locking plate is provided with a locking hole corresponding to the upper end of the locking pin, the outer end of the impact rod is bent downward corresponding to the lever body, and can push the lever to reverse and disengage from the pressure plate, so that the spring rebounds and pushes the locking pin to move upward and insert into the locking hole; the storm lock device can effectively prevent excessive rotation of the swivel operating equipment by automatic locking.

Description

Technical Field

[0001] The utility model relates to the technical field of crane safety locking, in particular to a storm lock device. Background Art

[0002] It is well known that the wind-proof safety measures for gantry cranes at home and abroad are mainly implemented through mechanisms such as track clamps and anchoring devices, but cantilever cranes cannot be equipped with locking devices of similar structures. Cantilever cranes can rely on active control to enable the cantilever lifting device to perform a large range of rotation and rotation operations. Once encountering extreme weather, the cantilever of the crane will passively rotate relative to the base together with the supporting body under the action of wind. It is inevitable that the cantilever will rotate excessively due to uncontrolled rotation, causing the cantilever to collide with buildings or other equipment, thereby causing safety accidents. Therefore, it is necessary to design a locking mechanism to limit the excessive rotation of cantilever cranes when they are uncontrolled. Utility Model Content

[0003] In order to overcome the deficiencies in the background technology and solve the existing technical problems, the utility model discloses a storm lock device, which can effectively prevent excessive rotation of rotary working equipment by automatic locking.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A storm lock device comprises a locking pin, a base and a rotating part rotatably mounted on the base; the outer wall of the base is fixed with corresponding upper and lower positioning plates and pressure plates, the surface of the positioning plate is provided with a through hole adapted for the locking pin to pass through, the upper end of the locking pin is installed with a thrust ring, the locking pin body between the thrust ring and the positioning plate is covered with a spring, the outer wall of the lower end of the locking pin is connected with a lever, the outer end of the lever is rotatably hooked on the outer end of the pressure plate so that the locking pin moves downward and the spring is in a compressed state; the outer wall of the rotating part is fixed with corresponding upper and lower impact rods and locking plates, the surface of the locking plate is provided with a locking hole corresponding to the upper end of the locking pin, the outer end of the impact rod is bent downward to correspond to the lever body, and can push the lever to reverse and disengage from the pressure plate, so that the spring rebounds and pushes the locking pin to move up and insert into the lock hole.

[0006] Furthermore, the outer end of the pressure plate is bent twice to form a Z-shaped hook including a vertical folding portion and a horizontal folding portion, and the outer end of the shifting rod is bent to form a folding rod portion hooked on the lower surface of the horizontal folding portion.

[0007] Furthermore, a plurality of limiting holes are arranged axially on the outer wall of the locking pin, the thrust ring is slidably sleeved on the locking pin, and a limiting pin adapted to be inserted in the limiting hole is abutted on the upper side of the thrust ring.

[0008] Furthermore, the impact rod includes a main rod member and a secondary rod member, both of which are L-shaped. The outer end of the transverse rod section of the main rod member is fixed to the rotating member, the outer end of the vertical rod section of the main rod member is correspondingly close to the outer end of the pressure plate, the secondary rod member is arranged between the pressure plate and the positioning plate, the outer end of the transverse rod section of the secondary rod member is fixed to the vertical rod section of the main rod member, and the vertical rod section of the secondary rod member is used to push the lever to reverse.

[0009] Furthermore, the lock hole is configured as a long hole.

[0010] Furthermore, two positioning plates are arranged side by side at intervals.

[0011] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0012] The storm lock device disclosed by the utility model can, when the rotating part is affected by factors such as wind and rotates uncontrollably, move the lever through the impact rod that rotates together with the rotating part, so that the lever is reversed and disengaged from the pressure plate, thereby further enabling the locking pin installed on the base to move upward under the action of the spring rebound force and insert into the lock hole of the locking plate on the rotating part, ultimately limiting the rotating part and the base from continuing to rotate excessively, effectively solving the problem of safety and wind protection of cantilever rotating lifting equipment in extreme weather, and achieving the effect of preventing the cantilever from colliding with buildings or equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the implementation structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the locking pin.

[0015] In the figure: 1, base; 2, rotating member; 3, pressure plate; 301, vertical folding part; 302, horizontal folding part; 4, lever; 401, folding rod part; 5, impact rod; 501, main rod; 502, auxiliary rod; 6, positioning plate; 7, spring; 8, limit pin; 9, thrust ring; 10, locking pin; 11, locking plate; 12, lock hole. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present invention and are for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction. Embodiment 1:

[0017] Combined with Figure 1-2The storm lock device comprises a locking pin 10, a base 1 and a swivel member 2 rotatably mounted on the base 1, the swivel member 2 is generally a supporting body for mounting the cantilever of a cantilever crane; the outer wall of the base 1 is fixed with upper and lower corresponding positioning plates 6 and a pressure plate 3, the surface of the positioning plate 6 is provided with a through hole adapted for the locking pin 10 to pass through; as needed, two positioning plates 6 are arranged side by side at intervals, and the locking pin 10 is radially limited by the two through holes on the two positioning plates 6; the upper end of the locking pin 10 is installed A thrust ring 9 is installed, and a spring 7 is arranged on the pin body of the locking pin 10 between the thrust ring 9 and the positioning plate 6, so that when the locking pin 10 moves downward, the thrust ring 9 can be driven to compress the spring 7; as needed, a plurality of limiting holes are arranged axially on the outer wall of the locking pin 10, and the thrust ring 9 is slidably sleeved on the locking pin 10, and a limiting pin 8 adapted to be inserted in the limiting hole is abutted on the upper side of the thrust ring 9, and the initial compression amount of the spring 7 can be adjusted by changing the position of the limiting pin 8 in the plurality of limiting holes;

[0018] The outer wall of the lower end of the locking pin 10 is connected to a lever 4, which can also play a limiting role to prevent the locking pin 10 from moving upward and slipping out of the perforation of the positioning plate 6. The outer end of the lever 4 is rotated to hook on the outer end of the pressure plate 3, so that the locking pin 10 moves downward and the spring 7 is in a compressed state, that is, it is necessary to actively press the locking pin 10 down manually at the beginning, and then rotate the lever 4 to make the outer end of the lever 4 hook on the outer end of the pressure plate 3; according to needs, the outer end of the pressure plate 3 is bent twice to form a Z-shaped hook including a vertical folding portion 301 and a horizontal folding portion 302, the outer end of the lever 4 is bent to form a folding rod portion 401 hooked on the lower surface of the horizontal folding portion 302, and the folding rod portion 401 of the lever 4 is rotated to be inserted under the horizontal folding portion 302 to form a limit;

[0019] The outer wall of the rotating part 2 is fixed with corresponding upper and lower impact rods 5 and locking plates 11. The locking plate 11 is provided with a locking hole 12 corresponding to the upper end of the locking pin 10. In order to ensure smooth insertion of the locking pin 10, the locking hole 12 is set as a long hole, and the width of the locking hole 12 can loosely fit the locking pin 10. The length of the locking hole 12 is 1.5 to 2 times the diameter of the locking pin 10, and the length direction of the locking hole 12 is an arc with the center corresponding to the rotation center line of the rotating part 2; the outer end of the impact rod 5 is bent downward to correspond to one side of the rod body of the lever 4, and can push the lever 4 to reverse and disengage from the pressure plate 3 as the rotating part 2 rotates, so that the spring 7 rebounds and pushes the locking pin 10 to move up and insert into the locking hole 12.

[0020] To implement the storm lock device of the present invention, it is necessary to press down the locking pin 10 and compress the spring 7 in advance, so that after the lever 4 is lowered, it can rotate forward and snap into the outer end of the pressure plate 3; when the rotating part 2 reverses uncontrollably, it can drive the impact rod 5 and push the lever 4 to disengage the pressure plate 3 from the limit, thereby further enabling the locking pin 10 installed on the base 1 to move upward under the action of the spring 7 rebound force, and be inserted into the lock hole 12 of the locking plate 11 on the rotating part 2, thereby finally limiting the rotating part 2 and the base 1 from continuing to rotate excessively. Embodiment 2:

[0021] In order to prevent the lever 4 from moving up and suddenly hitting the positioning plate 6 after it detaches from the pressure plate 3 due to the rebound of the spring 7, causing the positioning plate 6 to deform after long-term use, the impact rod 5 can be designed to include an L-shaped main rod member 501 and a secondary rod member 502 on the basis of the first embodiment, the outer end of the transverse rod section of the main rod member 501 is fixed to the rotating member 2, the outer end of the vertical rod section of the main rod member 501 corresponds to the outer end of the pressure plate 3, the secondary rod member 502 is arranged between the pressure plate 3 and the positioning plate 6, the outer end of the transverse rod section of the secondary rod member 502 is fixed to the vertical rod section of the main rod member 501, and the vertical rod section of the secondary rod member 502 is used to push the lever 4 to reverse, so that even if the lever 4 detaches from the pressure plate 3, it will be blocked by the transverse rod section of the secondary rod member 502 after rising a certain distance, so as to avoid hitting the positioning plate 6.

[0022] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A storm lock device, characterized by: The invention comprises a locking pin (10), a base (1) and a rotating member (2) rotatably mounted on the base (1); the outer wall of the base (1) is fixed with a positioning plate (6) and a pressure plate (3) corresponding to the upper and lower parts; the surface of the positioning plate (6) is provided with a through hole adapted for the locking pin (10) to movably pass through; a thrust ring (9) is mounted on the upper end of the locking pin (10); a spring (7) is disposed on the pin body of the locking pin (10) between the thrust ring (9) and the positioning plate (6); the outer wall of the lower end of the locking pin (10) is connected with a lever (4); the lever (4) The outer end of the rotating member (2) is hooked on the outer end of the pressure plate (3) so that the locking pin (10) moves downward and the spring (7) is in a compressed state; the outer wall of the rotating member (2) is fixed with a corresponding upper and lower impact rod (5) and a locking plate (11); the locking plate (11) is provided with a locking hole (12) corresponding to the upper end of the locking pin (10); the outer end of the impact rod (5) is bent downward to correspond to the rod body of the shifting rod (4), and can push the shifting rod (4) to reverse and disengage from the pressure plate (3), so that the spring (7) rebounds and pushes the locking pin (10) to move upward and insert into the locking hole (12).

2. The storm lock device according to claim 1, characterized in that: The outer end of the pressing plate (3) is bent twice to form a Z-shaped hook comprising a vertical folding portion (301) and a horizontal folding portion (302), and the outer end of the shifting rod (4) is bent to form a folding rod portion (401) hooked on the lower surface of the horizontal folding portion (302).

3. The storm lock device according to claim 1, characterized in that: The outer wall of the locking pin (10) is provided with a plurality of limit holes arranged in an axial direction, the thrust ring (9) is slidably sleeved on the locking pin (10), and a limit pin (8) adapted to be inserted into the limit hole is provided above the thrust ring (9).

4. The storm lock device according to claim 1, characterized in that: The impact rod (5) comprises a main rod (501) and a secondary rod (502) both of which are L-shaped, the outer end of the transverse rod section of the main rod (501) is fixed to the rotating member (2), the outer end of the vertical rod section of the main rod (501) is close to the outer end of the pressure plate (3), the secondary rod (502) is arranged between the pressure plate (3) and the positioning plate (6), the outer end of the transverse rod section of the secondary rod (502) is fixed to the vertical rod section of the main rod (501), and the vertical rod section of the secondary rod (502) is used to push the shifting rod (4) to reverse.

5. The storm lock device according to claim 1, characterized in that: The lock hole (12) is configured as a long hole.

6. The storm lock device according to claim 1, characterized in that: Two positioning plates (6) are arranged side by side at intervals.

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