CN216180024U

CN216180024U - Multifunctional elastic fastening device

Info

Publication number: CN216180024U
Application number: CN202122565751.6U
Authority: CN
Inventors: 贺鹏; 黄志强; 卞磊
Original assignee: Nanjing Guorui Defense System Co ltd
Current assignee: Nanjing Guorui Defense System Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-05
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a multifunctional elastic fastening device, which comprises a sleeve I, a screw rod and a sleeve II, wherein the upper end of the sleeve I is in threaded connection with a joint, the lower end of the sleeve I is movably connected with an adjusting nut, the top of the adjusting nut is fixedly connected with a plurality of clamping hooks, the inner wall of the lower end of the sleeve I is fixedly connected with a clamping ring corresponding to the clamping hooks, the screw rod is in threaded connection with the adjusting nut, the sleeve II is sleeved on the lower part of the screw rod, the lower end of the screw rod is fixedly provided with a spring, the lower end of the spring is fixedly arranged on the upper part of a base, the lower end of the sleeve II is fixedly connected with an installation seat, and the base is movably connected in the installation seat. The vibration impact effect of the mounting platform on the fixed object is reduced.

Description

Multifunctional elastic fastening device

Technical Field

The utility model relates to the technical field of fastening devices, in particular to a multifunctional elastic fastening device.

Background

The radar antenna is divided into a left side block, a right side block and a middle block, the two side blocks are folded to a transportation state after the antenna is overturned by 180 degrees after being laid down during transportation, and the antenna side blocks are folded to be in place and then need to be fixedly connected with a platform due to the fact that the antenna side blocks can greatly shake due to the transportation influence. The original method is that a quick spring pin is directly fixed with a support on a platform, the method limits the degree of freedom of each direction of an edge block, but the connection part of the antenna edge block is easy to deform due to rigid connection, and meanwhile, the pin hole matching difficulty is large due to the deformation and position errors caused by the overturning and folding of the antenna, so that the strength of manual operation is increased, and the frame removing time is prolonged.

The installation of the cabinet in the equipment compartment generally adopts two sets of shock absorbers, one set is a bottom shock absorber, usually an E-shaped shock absorber, and the other set is a back shock absorber, and the conventional back shock absorber is free in the vertical direction but rigid in the longitudinal direction and the transverse direction, which easily causes the vibration response amplification of the cabinet equipment in the two directions.

Therefore, there is a need for a device with adjustable length that can elastically fasten objects to avoid equipment failure or damage caused by rigid connection of the fixed objects.

Disclosure of Invention

The present invention is directed to a multifunctional elastic fastening device to solve the problems set forth in the background above.

In order to achieve the purpose, the utility model provides the following technical scheme:

multifunctional elastic fastening device, including sleeve pipe I, screw rod and sleeve pipe II, I upper end threaded connection of sleeve pipe has the joint, and I lower extreme swing joint of sleeve pipe has adjusting nut, a plurality of trips of adjusting nut top fixedly connected with, I lower extreme inner wall fixedly connected with of sleeve pipe and the snap ring that the trip corresponds, screw rod and adjusting nut threaded connection, II suits of sleeve pipe are on the screw rod lower part, and screw rod lower extreme fixed mounting has the spring, and spring lower extreme fixed mounting is on base upper portion, II lower extreme fixedly connected with mount pads of sleeve pipe, swing joint has the base in the mount pad, base and sleeve pipe swing joint.

As a still further scheme of the utility model: the upper part of the joint adopts a hook-shaped, annular or semicircular clamp.

As a still further scheme of the utility model: a plurality of guide keys are fixedly connected to the peripheral side of the outer wall of the lower portion of the screw rod, and guide key grooves corresponding to the guide keys are fixedly arranged on the upper portion of the inner wall of the sleeve II.

As a still further scheme of the utility model: the screw rod lower extreme one side fixedly connected with fixed column one, the cover is equipped with the spring on the fixed column one, the spring upper end is provided with the cyclic annular tip that corresponds with fixed column one, threaded connection has gland nut one on the fixed column one, base upper end one side fixedly connected with fixed column two, the cover of spring lower extreme is on fixed column two, the spring lower extreme is provided with the cyclic annular tip that corresponds with fixed column two, threaded connection has gland nut two on the fixed column two.

As a still further scheme of the utility model: the base bottom fixedly connected with keeps off the position board, is provided with the through-hole that corresponds with the position board in the mount pad, and II lower extreme inner walls fixedly connected with of sleeve pipe keep off the position arch that corresponds with the position board.

Due to the adoption of the technical scheme, the utility model has the following advantages: the utility model has good compatibility, can be compatible with larger installation position error of a fixed object, can realize the length adjustment of the whole device by rotating the adjusting nut, can set proper installation pretightening force by the adjusting nut, has torsion followability, is compatible with larger installation angle error of the fixed object, can not transmit torque to the sleeve I and the joint when the installation surface of the device and the fixed object generate relative torsion, avoids the fixed object from being damaged, realizes elastic fastening of the fixed object by the built-in high-rigidity spring, reduces the vibration impact effect of an installation platform on the fixed object, has the conventional structural parts as all the components, can finish machining of all parts, is quick to assemble, is suitable for batch production, has low cost and simple machining and assembly, is convenient to disassemble because the joint is in threaded connection with the sleeve I, the joint and the base are detachably connected and are convenient to replace, other structural forms which are convenient to connect can be designed according to needs, for example, the joint can adopt a hook shape, an annular shape, a semicircular clamp and the like, the base can adopt structural forms such as a hinged support and a universal joint, the spring is convenient to detach, and springs with different rigidity can be selected according to the weight and the application of fixed equipment.

Drawings

Fig. 1 is a front view of the multifunctional elastic fastening device.

Fig. 2 is a front sectional structural schematic view of the multifunctional elastic fastening device.

Fig. 3 is a top sectional structural view of a sleeve II in the multifunctional elastic fastening device.

Fig. 4 is a schematic view of the mounting structure of the multifunctional elastic fastening device in the antenna transportation process.

Fig. 5 is a schematic view of the installation structure of the multifunctional elastic fastening device on the cabinet and the equipment compartment.

In the figure: the device comprises a joint 1, a sleeve I2, an adjusting nut 3, a screw rod 4, a sleeve II 5, a spring 6, a base 7, a clamping hook 8, a clamping ring 9, a guide key 10, a guide key groove 11, a first fixing column 12, a first compression nut 13, an installation seat 14, a second fixing column 15, a second compression nut 16, a stop plate 17 and a stop protrusion 18.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 to 3, in the embodiment of the present invention, the multifunctional elastic fastening device includes a multifunctional elastic fastening device, which includes a sleeve i 2, a screw rod 4 and a sleeve ii 5, the upper end of the sleeve i 2 is connected with a joint 1 through a thread, the upper portion of the joint 1 adopts a hook-shaped, annular or semicircular clip, the lower end of the sleeve i 2 is movably connected with an adjusting nut 3, the top of the adjusting nut 3 is fixedly connected with a plurality of hooks 8, and the inner wall of the lower end of the sleeve i 2 is fixedly connected with a snap ring 9 corresponding to the hooks 8, so that the adjusting nut 3 and the sleeve i 2 can rotate relatively, and the device has a twisting follow-up property, thereby being compatible with a large installation angle error of a fixed object, and when a mounting surface of the device and the fixed object are twisted relatively, the torque cannot be transmitted to the sleeve i 2 and the joint 1, so as to avoid the fixed object being damaged, the screw rod 4 and the adjusting nut 3 are connected through a thread, the length adjustment of the whole device can be realized by rotating the adjusting nut 3, meanwhile, the adjusting nut 3 can be provided with a proper installation pretightening force, and a plurality of guide keys 10 are fixedly connected with the peripheral side of the outer wall of the lower part of the screw rod 4.

II 5 suits of sleeve pipe are on 4 lower parts of screw rods, and II 5 inner wall upper portions of sleeve pipe are fixed and are provided with the direction keyway 11 that corresponds with direction key 10, and screw rod 4 and II 5 of sleeve pipe are through leading 10 keys and the cooperation of direction keyway 11, can prevent that screw rod 4 and spring 6 from turning round when height-adjusting. The lower end of the screw rod 4 is fixedly provided with a spring 6, one side of the lower end of the screw rod 4 is fixedly connected with a first fixing column 12, the first fixing column 12 is sleeved with the spring 6, the upper end of the spring 6 is provided with an annular end part corresponding to the first fixing column 12, the first fixing column 12 is in threaded connection with a first compression nut 13, the lower end of the spring 6 is fixedly arranged on the upper part of the base 7, one side of the upper end of the base 7 is fixedly connected with a second fixing column 15, the lower end of the spring 6 is sleeved on the second fixing column 15, the lower end of the spring 6 is provided with an annular end part corresponding to the second fixing column 15, the second fixing column 15 is in threaded connection with a second compression nut 16, elastic fastening of a fixed object is realized through the elasticity of the spring 6, the vibration impact effect of an installation platform on the fixed object is reduced, the spring 6 is convenient to disassemble, springs with different rigidity can be selected according to the weight and the application occasions of the fixed equipment, the lower end of the sleeve II 5 is fixedly connected with an installation seat 14, swing joint has base 7 in the mount pad 14, base 7 and sleeve pipe 5 swing joint, and base 7 bottom fixedly connected with keeps off the position board 17, is provided with the through-hole that corresponds with keeping off the position board 17 in the mount pad 14, and II 5 lower extreme inner walls fixedly connected with of sleeve pipe keep off the position arch 18 with keeping off the position board 17 and corresponding.

The utility model discloses an installation mode: firstly, when the device is used for fastening and mounting the radar antenna in transportation, as shown in fig. 4, the antenna 300 is laid over the equipment compartment I200 in a transportation state, the base 7 of the device 100 is mounted on a support at the top of the equipment compartment I200, the sleeve I2 moves upwards by rotating the adjusting nut 3, and after the joint 1 and the antenna 300 are butted, the joint is locked by a hydraulic pin, so that the radar antenna is elastically fastened in the transportation state, and the antenna is generally provided with two fixing points; when the device is used for transporting and fastening the cabinet 400 in the second equipment compartment 600, as shown in fig. 5, the cabinet 400 is installed on a bottom plate of the second equipment compartment 600 through four shock absorbers 500 at the bottom, a top bracket of the cabinet 400 is connected with the side wall of the second equipment compartment 600 at the back of the cabinet 400 by adopting the device 100, a base 7 of the device 100 is installed on a C-shaped guide rail of the side wall of the second equipment compartment 600, an adjusting nut 3 is rotated to enable a sleeve I2 to move forwards, a joint 1 and the top bracket of the cabinet 400 are fixed by bolts after being butted, and two fixing points are generally arranged at the back of the cabinet 400; and thirdly, when the feeder line is supported and fixed, particularly for the waveguide, flexible support is needed, the connector 1 with the semicircular clamp is adopted (because the connector 1 can be detached, the connectors 1 with different shapes can be replaced according to the appearance of the waveguide), the installation mode is basically the same as that of the first step, only the connector 1 and the waveguide are fixed, then the adjusting nut 3 is continuously rotated according to the original direction, and proper pre-tightening pressure is applied, so that the elastic support for the waveguide can be realized.

Claims

1. The multifunctional elastic fastening device comprises a sleeve I (2), a screw rod (4) and a sleeve II (5), it is characterized in that the upper end of the sleeve I (2) is connected with a joint (1) in a threaded manner, the lower end of the sleeve I (2) is movably connected with an adjusting nut (3), the top of the adjusting nut (3) is fixedly connected with a plurality of clamping hooks (8), the inner wall of the lower end of the sleeve I (2) is fixedly connected with a clamping ring (9) corresponding to the clamping hooks (8), screw rod (4) and adjusting nut (3) threaded connection, sleeve pipe II (5) suit is on screw rod (4) lower part, and screw rod (4) lower extreme fixed mounting has spring (6), and spring (6) lower extreme fixed mounting is on base (7) upper portion, and sleeve pipe II (5) lower extreme fixedly connected with mount pad (14), swing joint has base (7) in mount pad (14), base (7) and sleeve pipe II (5) swing joint.

2. The multifunctional elastic fastening means according to claim 1 characterized in that the tab (1) upper part is hook-shaped, loop-shaped or semicircular clip.

3. The multifunctional elastic fastening device according to claim 1, characterized in that a plurality of guide keys (10) are fixedly connected to the periphery of the outer wall of the lower part of the screw rod (4), and a guide key groove (11) corresponding to the guide key (10) is fixedly arranged on the upper part of the inner wall of the sleeve II (5).

4. The multifunctional elastic fastening device according to claim 1, characterized in that a first fixing column (12) is fixedly connected to one side of the lower end of the screw (4), a spring (6) is sleeved on the first fixing column (12), an annular end portion corresponding to the first fixing column (12) is arranged at the upper end of the spring (6), a first compression nut (13) is connected to the first fixing column (12) in a threaded manner, a second fixing column (15) is fixedly connected to one side of the upper end of the base (7), the lower end of the spring (6) is sleeved on the second fixing column (15), an annular end portion corresponding to the second fixing column (15) is arranged at the lower end of the spring (6), and a second compression nut (16) is connected to the second fixing column (15) in a threaded manner.

5. The multifunctional elastic fastening device according to claim 1, characterized in that a stop plate (17) is fixedly connected to the bottom of the base (7), a through hole corresponding to the stop plate (17) is formed in the mounting seat (14), and a stop protrusion (18) corresponding to the stop plate (17) is fixedly connected to the inner wall of the lower end of the sleeve II (5).