Nitrogen spring with limiting function

Abstract

The utility model discloses a nitrogen spring with a limiting function, which comprises a base, a first gear is rotatably connected inside the base, a second gear is meshed and connected outside the first gear, the lower surface of the second gear is rotatably connected with the base, a screw rod is fixedly connected to the upper surface of the second gear, and a sleeve is in threaded connection outside the screw rod. A lap joint block is fixedly connected to the exterior of the sleeve, a movable rod is fixedly connected to the interior of the lap joint block, a piston is fixedly connected to the bottom end of the movable rod, a motor is arranged in the movable rod, and a connecting block is fixedly connected to the output end of the motor. By means of the structure, through cooperation of the first gear and the second gear, the screw rod drives the sleeve and the lap joint block to move, so that the movable rod drives the piston to move in the cylinder body, in addition, through cooperation of the connecting rods and the connecting blocks, the multiple fixing blocks can be rapidly aligned and fixed, and rapid connection of components is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen spring technical field, especially nitrogen spring with limiting function. BACKGROUND

[0002] Nitrogen spring is a kind of spring with gas as working medium, using the compressibility of nitrogen, nitrogen is stored in sealed spring container after pressurization, piston is pushed out through the nitrogen pressure between piston and top cover, thereby generating output force, this spring has stable performance, long service life, small space occupation, no noise and other advantages, such as Chinese patent disclosed nitrogen spring with multiple protection function, its application number is: CN201920875617.6, it provides multiple protection for nitrogen spring in use process, thereby effectively avoiding cylinder explosion phenomenon, simultaneously, when nitrogen spring is damaged, it is leaked through sealing failure, reaches safety protection effect, but nitrogen spring is not easy to limit during movement, in addition, nitrogen spring needs to be temporarily fixed by clamp or manual support during use process when being connected with other components, so as to be connected with components, it is inconvenient during operation. SUMMARY

[0003] The utility model discloses a kind of nitrogen springs with limiting function, the cooperation of primary gear and secondary gear makes screw rod drive sleeve and lap block move, so that movable rod drives piston move in the inside of cylinder body, in addition, the cooperation of connecting rod and connecting block makes multiple fixed blocks can be fast alignment fixed, it is convenient for the quick connection of component.

[0004] The utility model discloses still provide with above-mentioned one has the nitrogen spring of limiting function, include: base, the inside rotation of base is connected with the gear no. The outside of gear no. The lower surface of gear no. The upper surface of gear no. The outside screw thread connection of screw rod has sleeve, the outside fixed connection of sleeve has the lap joint block, the inside fixed connection of lap joint block has the movable rod, and the bottom fixed connection of movable rod has the piston, the lower surface of cylinder body is fixedly connected with base, and the inside of cylinder body is formed with the accommodating cavity between piston, the inside of accommodating cavity fills with nitrogen, the inside of movable rod is provided with motor, and the output fixedly connected with connecting block of motor, the upper surface rotation of connecting block is connected with the limit disc, and the limit disc is fixedly connected with movable rod through the fixed frame, the outside rotation of connecting block is connected with a plurality of connecting rods, and the end of a plurality of connecting rods is movably connected with fixed block away from connecting block, and the outside of fixed block is slidably connected with limit disc. Through above-mentioned parts, make screw rod drive sleeve and lap joint block move through the cooperation of gear no. With gear no. 2, so that movable rod drives piston to move in the inside of cylinder body, in addition, through the cooperation of connecting rod and connecting block, a plurality of fixed blocks can be fixed to the fast alignment, and the quick connection of component is convenient.

[0005] According to the nitrogen spring with limiting function, the outside of the piston is slidably connected with the inner wall of the cylinder body during work, and the outside of the piston is tightly connected with the cylinder body. Through the above-mentioned parts, the piston can move in the cylinder body, and nitrogen leakage is prevented.

[0006] According to the nitrogen spring with limiting function, the two gear no. 2 are connected with gear no. 1, and the outside of the two gear no. 2 has the same structure. Through the above-mentioned parts, the screw rod can drive the sleeve and the lap joint block to move through the cooperation of gear no. 1 and gear no. 2, so that the movable rod drives the piston to move in the inside of the cylinder body.

[0007] According to the nitrogen spring with limiting function, the lower surface of the gear no. 1 has an end rod, and the outside of the end rod is provided with a plurality of mounting holes. Through the above-mentioned parts, the gear no. 1 can be rotated through the end rod, the rotating direction of the gear no. 1 is adjusted, and the output end of the power source is connected through the mounting hole.

[0008] According to the nitrogen spring with limiting function, the gas outlet of the cylinder body is fixedly connected with the gas pipe, and the end of the gas pipe away from the cylinder body is fixedly connected with the gas storage body. Through the above-mentioned parts, when the inside of the cylinder body suffers excessive external force, the gas valve is opened by the internal gas pressure sensor, and the gas is saved in the gas storage body.

[0009] The nitrogen gas spring with limiting function has the advantages that the gas valve is arranged at the connecting position of the cylinder body and the air pipe, the gas pressure sensor is arranged in the cylinder body, and the gas pressure sensor is electrically connected with the gas valve.

[0010] The nitrogen gas spring with limiting function has the advantages that the sealing ring is arranged in the cylinder body, and the inner portion of the sealing ring is slidably connected with the movable rod.

[0011] The nitrogen gas spring with limiting function has the advantages that the dust cover is fixedly connected with the top end of the cylinder body, and the inner portion of the dust cover is slidably connected with the movable rod.

[0012] Compared with the prior art, the nitrogen gas spring with limiting function has the advantages that the cooperation of the first gear and the second gear enables the screw rod to drive the sleeve and the lapping block to move, so that the movable rod drives the piston to move in the cylinder body, and the cooperation of the connecting rod and the connecting block enables the plurality of fixing blocks to be quickly positioned and fixed, thereby facilitating the quick connection of the components. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further explained in connection with the drawings and examples;

[0014] Figure 1 It is complete structure diagram of the nitrogen gas spring with limiting function of the utility model;

[0015] Figure 2 It is sectional structure diagram of the nitrogen gas spring with limiting function of the utility model;

[0016] Figure 3 It is transmission mechanism structure diagram of the nitrogen gas spring with limiting function of the utility model;

[0017] Figure 4 It is alignment mechanism structure diagram of the nitrogen gas spring with limiting function of the utility model.

[0018] LEGEND:

[0019] 1, base; 2, gear; 3, gear; 4, screw; 5, sleeve; 6, lap block; 7, movable rod; 8, piston; 9, cylinder; 10, containing cavity; 11, motor; 12, connecting block; 13, limit disc; 14, connecting rod; 15, fixed block; 16, fixed frame; 17, end rod; 18, mounting hole; 19, air pipe; 20, gas storage; 21, air valve; 22, air pressure sensor; 23, sealing ring; 24, dust cover. DETAILED DESCRIPTION

[0020] This part will describe the specific embodiments of the utility model in detail, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0021] Referring to Figures 1-4 , the utility model discloses a nitrogen spring with limiting function, it includes: base 1, the inside rotation of base 1 is connected with gear 2, the outside of gear 2 is connected with gear 3, gear 2 and gear 3 form transmission component, the lower surface of gear 3 is rotationally connected with base 1, gear 3 has two and is all connected with gear 2, the outside of two gear 3 has the same structure, the lower surface of gear 2 is fixed with end rod 17, the rotating direction of gear 2 is adjusted, the outside of end rod 17 is provided with a plurality of mounting holes 18, the upper surface of gear 3 is fixedly connected with screw 4, so that sleeve 5 moves, sleeve 5 drives lap block 6 to make movable rod 7 move, the outside of screw 4 is threadedly connected with sleeve 5, and is used in cooperation with screw 4 rod, so that sleeve 5 can drive lap block 6 to go up and down, the outside of sleeve 5 is fixedly connected with lap block 6, connecting component, the inside of lap block 6 is fixedly connected with movable rod 7, the bottom of movable rod 7 is fixedly connected with piston 8;

[0022] cylinder 9, the lower surface of cylinder 9 is fixedly connected with base 1, and the inside of cylinder 9 and piston 8 form containing cavity 10, the inside of containing cavity 10 is filled with nitrogen, the inside of movable rod 7 is provided with motor 11, power source, the output end of motor 11 is fixedly connected with connecting block 12, the upper surface of connecting block 12 is rotationally connected with limit disc 13, limit disc 13 is fixedly connected with movable rod 7 through fixed frame 16, the outside of connecting block 12 is rotationally connected with a plurality of connecting rods 14, connecting rod 14 drives fixed block 15 to limit and fix the component placed, the end away from connecting block 12 of a plurality of connecting rods 14 is movably connected with fixed block 15, and the component is fixed, and the outside of fixed block 15 is slidably connected with limit disc 13.

[0023] The outer part of the piston 8 is in sliding connection with the inner wall of the cylinder 9 in working state, and the outer part of the piston 8 is tightly connected with the cylinder 9, the cylinder 9 is fixedly connected with a gas pipe 19, a channel for transporting nitrogen, the gas pipe 19 is fixedly connected with a gas storage body 20 at the end away from the cylinder 9, the connecting part of the cylinder 9 and the gas pipe 19 is provided with a gas valve 21 for controlling the gas in and out, the inside of the cylinder 9 is provided with a gas pressure sensor 22 for monitoring the gas pressure in the cylinder 9, the gas pressure sensor 22 is electrically connected with the gas valve 21, the inside of the cylinder 9 is provided with a sealing ring 23 for preventing the nitrogen in the cylinder 9 from leaking out, the inside of the sealing ring 23 is in sliding connection with the movable rod 7, the top end of the cylinder 9 is fixedly connected with a dust cover 24 for preventing dust and other impurities from entering, and the inside of the dust cover 24 is in sliding connection with the movable rod 7.

[0024] Working principle: first, the parts to be fixed are placed on the limiting disc 13, the motor 11 is started to drive the connecting block 12 to make the connecting rod 14 move, the connecting rod 14 drives the fixed block 15 to limit and fix the placed parts, the rotating end rod 17 drives the first gear 2 to make the two second gears 3 rotate, the two second gears 3 drive the screw rod 4 to make the sleeve 5 move, the sleeve 5 drives the lap block 6 to make the movable rod 7 move, the movable rod 7 drives the piston 8 to move on the inner wall of the cylinder 9, when the end rod 17 is loosened, the nitrogen in the inside of the cylinder 9 can make the piston 8 reset, when the inside of the cylinder 9 is subjected to excessive external force, the internal gas pressure sensor 22 will open the gas valve 21, so that the gas enters the gas storage body 20 for storage, when the external force disappears, the gas reenters the inside of the cylinder 9 through the gas valve 21.

[0025] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A nitrogen spring with a limiting function, characterized in that: include: A base (1), wherein the interior of the base (1) is rotatably connected to a first gear (2), the exterior of the first gear (2) is meshedly connected to a second gear (3), the lower surface of the second gear (3) is rotatably connected to the base (1), the upper surface of the second gear (3) is fixedly connected to a screw (4), the exterior of the screw (4) is threadedly connected to a sleeve (5), the exterior of the sleeve (5) is fixedly connected to a lap block (6), the interior of the lap block (6) is fixedly connected to a movable rod (7), and the bottom end of the movable rod (7) is fixedly connected to a piston (8); A cylinder body (9) is fixedly connected to the base (1), and a receiving chamber (10) is formed between the interior of the cylinder body (9) and the piston (8). The interior of the receiving chamber (10) is filled with nitrogen. A motor (11) is provided inside the movable rod (7). The output end of the motor (11) is fixedly connected to a connecting block (12). The upper surface of the connecting block (12) is rotatably connected to a limiting disk (13). The limiting disk (13) is fixedly connected to the movable rod (7) through a fixing frame (16). The outside of the connecting block (12) is rotatably connected to a plurality of connecting rods (14). The ends of the plurality of connecting rods (14) away from the connecting block (12) are movably connected to a fixed block (15). The outside of the fixed block (15) is slidably connected to the limiting disk (13).

2. The nitrogen spring with a limiting function according to claim 1, characterized in that: The outer portion of the piston (8) is slidably connected to the inner wall of the cylinder (9) during operation, and the outer portion of the piston (8) is tightly connected to the cylinder (9).

3. The nitrogen spring with a limiting function according to claim 1, characterized in that: There are two second gears (3) and both are meshed and connected with the first gear (2). The exteriors of the two second gears (3) have the same structure.

4. The nitrogen spring with a limiting function according to claim 1, characterized in that: The lower surface of the first gear (2) is provided with an end rod (17), and the exterior of the end rod (17) is provided with a plurality of mounting holes (18).

5. The nitrogen gas spring with a limiting function according to claim 1, characterized in that: The air outlet of the cylinder (9) is fixedly connected to an air pipe (19), and one end of the air pipe (19) away from the cylinder (9) is fixedly connected to a gas storage (20).

6. The nitrogen gas spring with a limiting function according to claim 1, characterized in that: An air valve (21) is provided at the connection between the cylinder body (9) and the air pipe (19), and an air pressure sensor (22) is provided inside the cylinder body (9). The air pressure sensor (22) is electrically connected to the air valve (21).

7. The nitrogen gas spring with a limiting function according to claim 1, characterized in that: A sealing ring (23) is provided inside the cylinder body (9), and the inside of the sealing ring (23) is slidably connected to the movable rod (7).

8. The nitrogen gas spring with a limiting function according to claim 1, characterized in that: The top end of the cylinder body (9) is fixedly connected with a dust cover (24), and the interior of the dust cover (24) is slidably connected with the movable rod (7).

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