Telescopic cylinder with displacement sensor

Abstract

The utility model relates to the technical field of telescopic cylinders, and discloses a telescopic cylinder with a displacement sensor, which comprises a plurality of telescopic cylinder main bodies, piston rods of the telescopic cylinder main bodies are connected with cylinder bodies of the adjacent telescopic cylinder main bodies in sequence, and the sizes of the cylinder bodies are gradually reduced in sequence. Displacement sensors are installed on the outer sides of cylinder bodies of the telescopic cylinder bodies, and the fixing parts of the displacement sensors are installed on the outer sides of the corresponding cylinder bodies. The displacement sensor is additionally arranged on the outer side of each telescopic cylinder body, during use, each displacement sensor can be used for each stage of telescopic cylinder body, a long single displacement sensor does not need to be designed to measure the stroke of the telescopic cylinder, the stroke is measured separately, and therefore the installation space can be effectively reduced, and meanwhile the installation cost is reduced. The guide rail of the displacement sensor can be shared by the telescoping of the telescoping cylinder main body, the telescoping stability can be provided, shaking can be reduced, and the installation space can be further saved.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic cylinders, in particular to a telescopic cylinder with a displacement sensor. Background Art

[0002] A telescopic cylinder is a device that can freely extend and retract, utilizing hydraulic principles to convert hydraulic energy into mechanical energy, thereby achieving telescopic movement. Its main structure includes key components such as the cylinder body, piston, piston rod, seals, and hydraulic connections. When hydraulic oil enters the cylinder, the oil pressure pushes the piston outward, which in turn drives the piston rod to extend and retract. When the oil returns, the piston automatically retracts, causing the cylinder to retract.

[0003] Currently, in order to achieve high-precision measurement of the stroke of telescopic cylinders, it is necessary to add a displacement sensor to the cylinder body. However, since the length of the displacement sensor is longer than the length of the telescopic cylinder, it will occupy more installation space during installation and cannot meet the needs of miniaturization of the equipment. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art and to propose a telescopic cylinder with a displacement sensor.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A telescopic cylinder with a displacement sensor comprises a plurality of telescopic cylinder bodies, wherein piston rods of the telescopic cylinder bodies are connected to cylinder bodies of adjacent telescopic cylinder bodies, and the plurality of telescopic cylinder bodies are connected in sequence, and the cylinder body sizes decrease in sequence. Displacement sensors are installed on the outsides of the cylinder bodies of the plurality of telescopic cylinder bodies, wherein the fixed parts of the displacement sensors are installed on the outsides of the corresponding cylinder bodies, and the movable parts of the displacement sensors are installed on the outsides of the cylinder bodies of adjacent telescopic cylinder bodies.

[0007] Preferably, the displacement sensor is a resistive linear displacement sensor or an inductive linear displacement sensor.

[0008] Preferably, two adjacent displacement sensors are respectively located on both sides of the telescopic cylinder body.

[0009] Preferably, the telescopic cylinder body is connected to the fixed portion and the adjacent movable portion of the corresponding displacement sensor via a connecting seat arranged on the outside, and a plurality of connecting seats are movably nested in sequence.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model adds a displacement sensor on the outside of each telescopic cylinder body. When in use, each displacement sensor can be used for each level of the telescopic cylinder body. There is no need to design a very long single displacement sensor to measure the stroke of the telescopic cylinder. Instead, the displacement sensors are measured separately, which can effectively reduce the installation space. At the same time, the guide rails of the displacement sensor itself can be shared with the telescopic movement between the telescopic cylinder bodies, which can not only provide telescopic stability and reduce shaking, but also further save installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of a telescopic cylinder with a displacement sensor proposed by the utility model;

[0013] Figure 2 This is a side view of a telescopic cylinder with a displacement sensor proposed by the utility model.

[0014] In the figure: 1. First-stage telescopic cylinder; 2. Displacement sensor; 3. Connecting seat; 4. Second-stage telescopic cylinder. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] Reference Figure 1 and Figure 2 A telescopic cylinder with a displacement sensor 2 includes two telescopic cylinder bodies, which serve as a first-stage telescopic cylinder 1 and a second-stage telescopic cylinder 4 respectively. The telescopic cylinder bodies can be oil cylinders or air cylinders. The piston rod of the first-stage telescopic cylinder 1 is connected to the cylinder body of the second-stage telescopic cylinder 4, and the size of the first-stage telescopic cylinder 1 is larger than that of the second-stage telescopic cylinder 4. A displacement sensor 2 is installed on the outside of the cylinder body of the first-stage telescopic cylinder 1. The fixed part of the displacement sensor 2 is installed on the outside of the cylinder body of the first-stage telescopic cylinder 1, and the movable part of the displacement sensor 2 is installed on the outside of the cylinder body of the second-stage telescopic cylinder 4 through a connecting seat 3. The piston rod of the second-stage telescopic cylinder 4 is connected to the movable part of another displacement sensor 2 through another connecting seat 3, and the fixed part of the displacement sensor 2 is installed on the outside of the connecting seat 3 of the fixed part of the other displacement sensor 2, and the connecting seat 3 at the end, that is, the connecting seat 3 connected to the piston rod of the second-stage telescopic rod 4, is used for propulsion.

[0017] When the present device is in use, each displacement sensor 2 can be used for each level of the telescopic cylinder body. There is no need to design a very long single displacement sensor 2 to measure the stroke of the telescopic cylinder. Instead, the displacement sensors 2 can be measured separately, thereby effectively reducing the installation space. At the same time, the guide rails of the displacement sensor 2 itself can be shared with the telescopic cylinder bodies, which not only provides telescopic stability and reduces shaking, but also further saves installation space.

[0018] In this embodiment, the displacement sensor 2 adopts a resistive linear displacement sensor 2 or an inductive linear displacement sensor 2. Both of the above displacement sensors 2 have their own rails that can act on the extension and retraction of the telescopic cylinder body, thereby saving installation space.

[0019] In this embodiment, two adjacent displacement sensors 2 are respectively located on both sides of the telescopic cylinder body. This approach is beneficial for saving installation space when arranging a multi-stage telescopic cylinder body.

[0020] In this embodiment, a plurality of connecting sockets 3 are movably nested in sequence.

[0021] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A telescopic cylinder with a displacement sensor, comprising a plurality of telescopic cylinder bodies, characterized in that: The piston rod of the telescopic cylinder body is connected to the cylinder body of an adjacent telescopic cylinder body, and multiple telescopic cylinder bodies are connected in sequence, and the cylinder body sizes decrease in sequence. Displacement sensors are installed on the outside of the cylinder bodies of multiple telescopic cylinder bodies, and the fixed part of the displacement sensor is installed on the outside of the corresponding cylinder body, and the movable part of the displacement sensor is installed on the outside of the cylinder body of the adjacent telescopic cylinder body.

2. The telescopic cylinder with a displacement sensor according to claim 1, characterized in that: The displacement sensor is a resistive linear displacement sensor or an inductive linear displacement sensor.

3. The telescopic cylinder with a displacement sensor according to claim 1, characterized in that: Two adjacent displacement sensors are respectively located on both sides of the telescopic cylinder body.

4. The telescopic cylinder with a displacement sensor according to claim 2, characterized in that: The telescopic cylinder body is connected to the fixed part and the adjacent movable part of the corresponding displacement sensor through a connecting seat arranged on the outside, and a plurality of connecting seats are movably nested in sequence.

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