Pin lock for launching platform

Abstract

The utility model discloses a pin lock for a launching platform, which relates to the technical field of pin locks and comprises a base, a sliding groove is arranged on the base, a motor seat is mounted on the sliding groove, a stepping motor is mounted on the motor seat, and an output shaft of the stepping motor is connected with a lead screw. According to the pin lock for the launching platform, the arranged sensor shifting fork moves along with the threaded cylinder, the sensor shifting fork can make contact with sensors on the two sides of the sensor base, and the two sensors send signals to control a system to send an instruction to make a stepping motor rotate reversely or stop according to the actual situation; therefore, the lock pin and the lock nose are driven to be locked or separated, the lifting platform and the launching platform are locked and fixed or separated, and the problem that the safety is not high when the lock pin is manually inserted and pulled out is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pin locks, in particular to a pin lock for a launch platform. Background Art

[0002] The launch platform pin lock is an important safety device in the rocket launch system. Before the rocket is ready to launch, in order to ensure the stability and safety of the rocket on the ground, the launch platform will be equipped with a series of pin locks or fixing devices to fix the rocket's lifting platform. These pin locks are usually located at the connection or interface between the lifting platform and the launch platform. They are used to prevent the lifting platform on which the rocket is placed from accidentally lifting or vibrating during the preparation stage before launch. The prior art will lock the lifting platform and the launch platform by manually plugging and pulling out the locking pin. This method has the risk of malfunction caused by forgetting to plug and pull out the locking pin, safety cannot be guaranteed, and work efficiency is very low. For this reason, the present application proposes a pin lock for a launch platform to solve the above problems. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a pin lock for a launch platform, which solves the technical problems raised in the above background.

[0005] (II) Technical solution

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a pin lock for a launching platform, comprising a base, a slide groove is provided on the base, a motor seat is installed on the slide groove, and a stepper motor is installed on the motor seat, the stepper motor output shaft is connected to a lead screw, the lead screw is connected to a threaded barrel, the threaded barrel is connected to a toggle pin, a connecting groove is provided on the slide groove to connect the center hole in the base, and the toggle pin passes through the connecting groove to connect the locking pin, the locking pin slides in the center hole of the base, and the locking pin is connected to the lock nose, a sensor fork is installed on the threaded barrel, a sensor base is installed on the base, and two sensors are installed on the sensor base.

[0007] Preferably, the locking nose is a flange, and the locking pin is butted against a hole in the flange.

[0008] Preferably, the base is fixed on the launching platform, and the locking nose is fixed on the lifting platform of the launching platform.

[0009] Preferably, the two sensors installed on the sensor base are respectively located at two ends of the sensor base.

[0010] Preferably, the sensor fork contacts two sensors at two ends of the sensor base as the threaded barrel moves.

[0011] (III) Beneficial effects

[0012] The beneficial effects of the utility model are:

[0013] This type of launch platform uses a pin lock. Through the movement of the threaded barrel, the sensor fork can contact the sensors on both sides of the sensor base. The two sensors send signals to the control system to send instructions to reverse or stop the stepper motor according to the actual situation, thereby driving the lock pin and the lock nose to lock or separate, thereby locking or separating the lifting platform and the launch platform, effectively solving the problem of low safety of manually inserting and removing the lock pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the planar structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the planar structure of the utility model from a top view;

[0016] Figure 3 It is a schematic diagram of the side planar structure of the utility model.

[0017] In the figure: 1 lock pin, 2 lock nose, 3 slide groove, 4 toggle pin, 5 sensor fork, 6 threaded cylinder, 7 screw rod, 8 motor seat, 9 stepper motor, 10 sensor base, 11 sensor, 12 base, 13 connecting groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-3As shown, the utility model provides a technical solution: a pin lock for a launching platform, comprising a base 12, a slide groove 3 is provided on the base 12, a motor seat 8 is installed on the slide groove 3, and a stepping motor 9 is installed on the motor seat 8, the output shaft of the stepping motor 9 is connected with a screw rod 7, the screw rod 7 is connected with a threaded barrel 6, the threaded barrel 6 is externally connected with a toggle pin 4, a connecting groove 13 is provided on the slide groove 3 to connect the center hole in the base 12, and the toggle pin 4 passes through the connecting groove 13 to connect the locking pin 1, the locking pin 1 slides in the center hole of the base 12, and the locking pin 1 is connected to the lock nose 2, the output shaft of the stepping motor 9 drives the screw rod 7 to rotate, the threaded barrel 6 drives the toggle pin 4 to slide in the connecting groove 13, the dynamic locking pin 1 and the lock nose 2 are locked or separated, the lock nose 2 is a flange, and the locking pin 1 is docked with the hole in the flange, and the threaded barrel 6 is installed on the screw rod 7. A sensor fork 5 is installed, a sensor base 10 is installed on the base 12, and two sensors 11 are installed on the sensor base 10. The two sensors 11 installed on the sensor base 10 are respectively located at the two ends of the sensor base 10. The sensor fork 5 contacts the two sensors 11 at the two ends of the sensor base 10 as the threaded barrel 6 moves. As the threaded barrel 6 moves, the sensor fork 5 can contact the sensors 11 on both sides of the sensor base 10. The two sensors 11 send signals, and the control system sends instructions to reverse or stop the stepper motor 9 according to actual conditions, thereby driving the lock pin 1 and the lock nose 2 to lock or separate, thereby realizing the locking, fixing or separation of the lifting platform and the launching platform. The base 12 is fixed on the launching platform, and the lock nose 2 is fixed on the lifting platform of the launching platform.

[0020] The operating steps of the utility model are:

[0021] The output shaft of the stepper motor 9 drives the screw rod 7 to rotate, and the threaded barrel 6 drives the driving pin 4 to slide in the connecting groove 13, so that the dynamic locking pin 1 and the locking nose 2 are locked or separated. At the same time, the sensor fork 5 moves with the threaded barrel 6, and the sensor fork 5 can contact the sensors 11 on both sides of the sensor base 10. The two sensors 11 send signals, and the control system sends instructions to let the stepper motor 9 reverse or stop according to the actual situation, thereby driving the locking pin 1 and the locking nose 2 to lock or separate, and realize the locking, fixing or separation of the lifting platform and the launching platform. The control is realized by a switch, and the locking, fixing or separation state of the lifting platform and the launching platform is judged by which sensor 11 on both sides of the sensor base 10 the sensor fork 5 contacts, and no manual operation on site is required.

[0022] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pin lock for a launch platform, comprising a base (12), characterized in that: The base (12) is provided with a slide groove (3), a motor seat (8) is installed on the slide groove (3), and a stepper motor (9) is installed on the motor seat (8), the output shaft of the stepper motor (9) is connected with a screw rod (7), the screw rod (7) is connected with a threaded barrel (6), the threaded barrel (6) is externally connected with a toggle pin (4), the slide groove (3) is provided with a connecting groove (13) connected with a center hole in the base (12), and the toggle pin (4) passes through the connecting groove (13) and is connected with a lock pin (1), the lock pin (1) slides in the center hole of the base (12), and the lock pin (1) is connected with a lock nose (2), a sensor fork (5) is installed on the threaded barrel (6), a sensor base (10) is installed on the base (12), and two sensors (11) are installed on the sensor base (10).

2. A pin lock for a launch platform according to claim 1, characterized in that: The locking nose (2) is a flange, and the locking pin (1) is butted against a hole in the flange.

3. A pin lock for a launch platform according to claim 1, characterized in that: The base (12) is fixed on the launching platform, and the locking nose (2) is fixed on the lifting platform of the launching platform.

4. A pin lock for a launch platform according to claim 1, characterized in that: The two sensors (11) installed on the sensor base (10) are respectively located at two ends of the sensor base (10).

5. A pin lock for a launch platform according to claim 4, characterized in that: The sensor fork (5) contacts two sensors (11) at two ends of the sensor base (10) as the threaded barrel (6) moves.

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