Air cylinder with magnetic switch

Abstract

The utility model discloses an air cylinder with a magnetic switch. The air cylinder comprises a cylinder body, wherein sealing covers are arranged at the two ends of the cylinder body; the piston is arranged in the cylinder body in a sliding mode, a magnet is installed on one side of the piston, a magnetic switch is installed at the position, corresponding to the magnet, of one end in the cylinder body, and a piston rod used for driving the piston is fixedly connected to one side of the piston. The fastening screws and the nuts are used for fixing, so that the installation process of the whole device is simple and rapid, meanwhile, subsequent maintenance and replacement are facilitated, and the use cost is reduced; in a closed environment, reliable feedback of signals is realized by utilizing contact and separation of the magnet on one side of the piston and the magnetic switch in the cylinder body, and the problem of insensitive action or inaccurate signals caused by dust and foreign matters can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of signal feedback, in particular to a cylinder with a magnetic switch. Background Technique

[0002] At present, the limit of the hydraulic cylinder is mechanical limit, and its main working principle is that the action of the hydraulic cylinder drives the blocking block to touch the limit switch to act and then feedback the signal. In the daily use process, due to a lot of dust and dirt in some use environments, under the influence of some dust or impurities, there are problems such as insensitive action, easy dust accumulation and jamming, and inaccurate feedback signal. Content of the Utility Model

[0003] The purpose of the utility model is to provide a cylinder with a magnetic switch to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A cylinder with a magnetic switch, including:

[0005] A cylinder body with sealing covers installed at both ends;

[0006] A piston, the piston slides inside the cylinder body, a magnet is installed on one side of the piston, a magnetic switch is installed at one end inside the cylinder body corresponding to the position of the magnet, and a piston rod for driving the piston is fixedly connected to one side of the piston;

[0007] An air pipe, the air pipe is placed between the two sealing covers and is used to connect the spaces on both sides of the piston;

[0008] A bracket assembly, the bracket assembly is placed at the end of the cylinder body, the bracket assembly includes a first mounting seat and a second mounting seat, a limit baffle is fixedly connected to one end of the first mounting seat, and a first fastening bolt is threadedly connected to the middle of the limit baffle for clamping and fixing the first mounting seat and the hydraulic cylinder.

[0009] Preferably, the piston rod includes a fixed rod, an extension rod and an end rod, the piston is fixedly connected to the fixed rod, the end of the fixed rod is threadedly connected to the extension rod, and the end of the extension rod away from the fixed rod is threadedly connected to the end rod.

[0010] Preferably, a connecting plate is fixedly connected to the end of the end rod, a bottom plate is fixedly connected to one side of the bottom of the connecting plate, and a second fastening bolt is threadedly connected to the bottom of the bottom plate for squeezing and fixing the connecting plate and the output end of the hydraulic cylinder.

[0011] Preferably, a rubber sleeve is connected between the connecting plate and the second mounting seat, and the piston rod is placed inside the rubber sleeve.

[0012] Preferably, the first mounting seat is slidably arranged on the outside of the cylinder body, and a fastening screw is threadedly connected to the top of the first mounting seat.

[0013] Preferably, a connecting rod is fixedly connected to one side of the second mounting seat. The connecting rod passes through the middle of the first mounting seat, and a nut is threadedly connected to the outside of the connecting rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: By designing that the piston rod is composed of a fixed rod, an extension rod and an end rod, and adopting a threaded connection method, the overall length of the piston rod can be flexibly adjusted according to the actual telescopic length of the hydraulic cylinder, so that it can adapt to hydraulic cylinders of different models and specifications, improving the versatility and flexibility of the equipment; A rubber sleeve is arranged between the connecting plate and the second mounting seat, and it is ensured that the piston rod is always located inside the rubber sleeve during the movement process, effectively preventing external dust and impurities from entering the cylinder body, protecting the switching mechanism and extending the service life; Through the design of the first mounting seat and the second mounting seat, and the use of fastening screws and nuts for fixation, the installation process of the entire device is simple and fast, and it is also convenient for subsequent maintenance and replacement, reducing the use cost; In a closed environment, the contact and separation between the magnet on one side of the piston and the magnetic switch inside the cylinder body are used to realize reliable signal feedback, and it can effectively avoid problems such as insensitive action or inaccurate signal caused by dust and foreign objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is a schematic structural view of the connecting plate of the present utility model;

[0017] Figure 3 is a schematic internal structural view of the cylinder body of the present utility model;

[0018] Figure 4 is a schematic structural view of the present utility model.

[0019] In the figure: 1, cylinder body; 2, first mounting seat; 3, limit baffle; 4, first fastening bolt; 5, ventilation pipe; 6, connecting rod; 7, second mounting seat; 8, connecting plate; 9, bottom plate; 10, second fastening bolt; 11, rubber sleeve; 12, piston; 13, magnet; 14, magnetic switch; 15, piston rod; 16, fixed rod; 17, extension rod; 18, end rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figure 1 , 2 , Figures 3 and 4, the present invention provides a technical solution: a cylinder with a magnetic switch, including: a cylinder body 1 with sealing caps threadedly installed at both ends, and one end of the cylinder body 1 is an open structure; a piston 12 is slidably installed inside the cylinder body 1, a magnet 13 is installed on one side of the piston 12, a magnetic switch 14 is installed at a position corresponding to the magnet 13 at one end inside the cylinder body 1, and a piston rod 15 for driving the piston 12 is fixedly connected to one side of the piston 12; a ventilation pipe 5 is connected between the two sealing caps for communicating the spaces on both sides of the piston 12; a bracket assembly is placed at the end of the cylinder body 1, the bracket assembly includes a first mounting seat 2 and a second mounting seat 7, a limit baffle 3 is fixedly connected to one end of the first mounting seat 2, and a first fastening bolt 4 is threadedly connected to the middle of the limit baffle 3 for clamping and fixing the first mounting seat 2 and the hydraulic cylinder.

[0022] It should be noted that when the present invention is in use, the first mounting seat 2 and the second mounting seat 7 are respectively fixed at both ends of the cylinder body of the hydraulic cylinder, one end of the piston rod 15 is fixedly connected to the output end of the hydraulic cylinder, the length of the piston rod 15 is adjusted according to the telescopic length of the hydraulic cylinder, when the output end of the hydraulic cylinder expands and contracts, it drives the piston rod 15 to move, the piston rod 15 drives the piston 12 to slide inside the cylinder body 1, when the magnet 13 on one side of the piston 12 contacts the magnetic switch 14, the magnetic switch 14 is powered on, and when they are separated, the magnetic switch 14 is powered off, and under the action of the ventilation pipe 5, the air on both sides of the piston 12 is reciprocally circulated and transported, so as to realize the internal circulation of air, prevent impurities and dust from entering, so as to realize signal feedback, the magnet 13 and the magnetic switch 14 are arranged in a sealed manner to prevent dust and foreign objects from causing insensitive actions, as well as dust accumulation and jamming, and inaccurate feedback signals.

[0023] Please refer to Figure 4 As shown in the figure, the piston rod 15 includes a fixed rod 16, an extension rod 17 and an end rod 18, the piston 12 is fixedly connected to the fixed rod 16, the end of the fixed rod 16 is threadedly connected to the extension rod 17, the end of the extension rod 17 away from the fixed rod 16 is threadedly connected to the end rod 18, a connecting plate 8 is fixedly connected to the end of the end rod 18, a bottom plate 9 is fixedly connected to one side of the bottom of the connecting plate 8, and a second fastening bolt 10 is threadedly connected to the bottom of the bottom plate 9 for pressing and fixing the connecting plate 8 and the output end of the hydraulic cylinder.

[0024] It should be noted that threaded rods are fixedly connected to one end of the extension rod 17 and the piston rod 15 of the present utility model. Threaded holes that cooperate with the threaded rods are provided at one end of the fixed rod 16 and the extension rod 17. According to the length that the hydraulic cylinder needs to extend and contract, by replacing the lengths of different extension rods 17, the overall length of the piston rod 15 is adjusted to facilitate its cooperation with hydraulic cylinders of different models and specifications. When cooperating with the conveying end of the hydraulic cylinder, the connecting plate 8 is sleeved outside the conveying end of the hydraulic cylinder, and then by rotating the second fastening bolt 10, the end of the second fastening bolt 10 is brought into pressing contact with the output end of the hydraulic cylinder, thereby realizing the connection between the connecting plate 8 and the output end of the hydraulic cylinder.

[0025] Please refer to Figure 1 、 2 As shown, a rubber sleeve 11 is connected between the connecting plate 8 and the second mounting seat 7, and the piston rod 15 is placed inside the rubber sleeve 11.

[0026] It should be noted that when the hydraulic cylinder drives the connecting plate 8 to move in the present utility model, while the connecting plate 8 drives the piston rod 15 to move, the connecting plate 8 can stretch the rubber sleeve 11. During this period, the piston rod 15 is inside the rubber sleeve 11, preventing it from contacting external dust and avoiding impurities from being brought into the interior of the cylinder body 1, which affects the service life of the switch.

[0027] Please refer to Figure 1 、 2 As shown, the first mounting seat 2 is slidably arranged outside the cylinder body 1, and a fastening screw is threadedly connected to the top of the first mounting seat 2. A connecting rod 6 is fixedly connected to one side of the second mounting seat 7. The connecting rod 6 passes through the middle of the first mounting seat 2, and a nut is threadedly connected to the outside of the connecting rod 6.

[0028] It should be noted that the present utility model clamps and fixes the first mounting seat 2 to one end of the hydraulic cylinder, and fixes it to the cylinder body 1 through the fastening screw, thereby changing the position of the first mounting seat 2 outside the cylinder body 1. Then, the nut outside the connecting rod 6 is rotated. Through the cooperation of the nut and the connecting rod 6, the second mounting seat 7 is pulled towards one end of the first mounting seat 2, so that the second mounting seat 7 is clamped and fixed to the other end of the hydraulic cylinder.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "up", "one side", "top", "inside", "front", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0030] Furthermore, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include at least one such feature.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swiveling connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Although embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cylinder with a magnetic switch, characterized in that: include: A cylinder (1) with sealing covers installed at both ends; A piston (12), the piston (12) is slidably disposed inside the cylinder (1), a magnet (13) is installed on one side of the piston (12), a magnetic switch (14) is installed at one end of the cylinder (1) at a position corresponding to the magnet (13), and a piston rod (15) for driving the piston (12) is fixedly connected to one side of the piston (12); A vent pipe (5), which is disposed between the two sealing covers and is used to connect the spaces on both sides of the piston (12); A bracket assembly is placed at the end of the cylinder (1), and the bracket assembly includes a No. 1 mounting seat (2) and a No. 2 mounting seat (7). One end of the No. 1 mounting seat (2) is fixedly connected to a limit baffle (3), and the middle part of the limit baffle (3) is threadedly connected to a No. 1 fastening bolt (4) for clamping and fixing the No. 1 mounting seat (2) and the hydraulic cylinder.

2. A cylinder with a magnetic switch according to claim 1, characterized in that: The piston rod (15) comprises a fixed rod (16), an extension rod (17) and an end rod (18); the piston (12) is fixedly connected to the fixed rod (16); the end of the fixed rod (16) is threadedly connected to the extension rod (17); and the end of the extension rod (17) away from the fixed rod (16) is threadedly connected to the end rod (18).

3. A cylinder with a magnetic switch according to claim 2, characterized in that: The end of the end rod (18) is fixedly connected to a connecting plate (8), one side of the bottom of the connecting plate (8) is fixedly connected to a bottom plate (9), and the bottom of the bottom plate (9) is threadedly connected to a No. 2 fastening bolt (10) for squeezing and fixing the connecting plate (8) and the output end of the hydraulic cylinder.

4. A cylinder with a magnetic switch according to claim 3, characterized in that: A rubber sleeve (11) is connected between the connecting plate (8) and the second mounting seat (7), and the piston rod (15) is placed inside the rubber sleeve (11).

5. A cylinder with a magnetic switch according to claim 1, characterized in that: The No. 1 mounting seat (2) is slidably arranged on the outside of the cylinder (1), and a fastening screw is threadedly connected to the top of the No. 1 mounting seat (2).

6. A cylinder with a magnetic switch according to claim 1, characterized in that: A connecting rod (6) is fixedly connected to one of the second mounting seat (7), the connecting rod (6) passes through the middle of the first mounting seat (2), and a nut is threadedly connected to the outer side of the connecting rod (6).

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