Cylindrical linear displacement sensor

Abstract

The utility model relates to the technical field of cylindrical linear displacement sensors, in particular to a cylindrical linear displacement sensor, which comprises a cylinder body, two ends of the cylinder body are in threaded connection with sealing covers, one side of one group of sealing covers is fixedly connected with a lead used for being electrically connected with parts inside the cylinder body, the side wall of the cylinder body is fixedly connected with a take-up assembly, and the other side wall of the cylinder body is fixedly connected with the take-up assembly. The take-up assembly comprises a storage box, the storage box is fixedly connected to the side wall of the barrel, two racks are slidably connected into the storage box, fixing columns are fixedly connected to one ends of the two racks, the two fixing columns are located at the two ends of the interior of the storage box respectively, and a wire is wound between the two fixing columns; a sensor shell is formed by a sealing cover and a cylinder body, a sensor wire penetrates into a storage box and is wound on two groups of fixing columns in order, two groups of racks are controlled to slide, and the distance between the two groups of fixing columns is changed, so that the drawable length of the end part of the wire is changed, the wire is stored, the use length of the wire is controlled, and the sensor is convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of cylindrical linear displacement sensors, in particular to a cylindrical linear displacement sensor. Background Art

[0002] The displacement sensor, also known as the linear sensor, is a linear device that belongs to metal sensing. The function of the linear displacement sensor is to convert various measured physical quantities into electrical quantities. The outer shell of the cylindrical linear displacement sensor is cylindrical.

[0003] Existing cylindrical linear displacement sensors, such as the one proposed in patent application number "CN202223287871.5", are easy-to-assemble linear displacement sensors. Through structures such as a shell, a PCB board, and a cover plate, the structure is stable and easy to assemble, and relative movement or rotation will occur between the sensor and the fixed parts, thereby ensuring measurement accuracy.

[0004] However, the wires used to connect to the sensor are not easy to store. When used in a complex space, the wires are easily entangled or pulled, making the sensor inconvenient to use and seriously affecting the transmission stability of the sensor's detection results. Therefore, a cylindrical linear displacement sensor is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a cylindrical linear displacement sensor to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A cylindrical linear displacement sensor comprises a cylinder, both ends of which are threadedly connected with covers, one side of a group of covers is fixedly connected with a wire for electrically connecting with internal parts of the cylinder, and a wire take-up assembly is fixedly connected to the side wall of the cylinder;

[0008] The wire taking-up assembly includes a storage box, which is fixedly connected to the side wall of the cylinder. Two sets of racks are slidably connected inside the storage box. One end of the two sets of racks is fixedly connected to a fixed column. The two sets of fixed columns are respectively located at two ends of the storage box. The wire is wound between the two sets of fixed columns, and the end of the wire passes through the side wall of the storage box.

[0009] Preferably, a partition is fixedly connected inside the storage box, and slide rails are fixedly connected to both sides of the upper end of the partition, and two groups of racks are slidably connected to the two groups of slide rails respectively.

[0010] Preferably, a rotating shaft is rotatably connected to the middle of the storage box, and both ends of the rotating shaft respectively penetrate the upper end of the storage box and the partition, and both ends of the rotating shaft are respectively fixed with a knob and a limit block, and the knob is located at the upper end of the storage box.

[0011] Preferably, a gear is fixedly connected to the side wall of the rotating shaft, the gear is located between the two sets of racks, and the gear is meshed with the two sets of racks for transmission. An isolation cylinder is sleeved on the side wall of the rotating shaft, and the isolation cylinder is located between the gear and the inner wall of the storage box.

[0012] Preferably, sealing rings are clamped at both ends of the cylinder, and the sealing rings are squeezed between the end of the cylinder and the sealing cover.

[0013] Preferably, two groups of fixing strips are fixedly connected to the side wall of the cylinder, and two groups of mounting seats are sleeved on the side wall of the cylinder, and the two groups of mounting seats are respectively abutted and matched with the two groups of fixing strips.

[0014] Beneficial effects of the utility model:

[0015] The utility model forms a sensor housing through a sealing cover and a cylinder body, and the sensor wire is inserted into the storage box and is orderly wound around two groups of fixed columns. The two groups of racks are controlled to slide so that the distance between the two groups of fixed columns is changed, thereby changing the pullable length of the wire end, storing the wire and controlling the use length of the wire, which is convenient for using the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the wire winding structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the storage box of the utility model;

[0021] Figure 5 yes Figure 2 A schematic diagram of the structure at A;

[0022] The reference numerals in the figures are as follows:

[0023] 1. Cylinder body; 2. Cover; 3. Sealing ring; 4. Fixing strip; 5. Mounting base; 6. Storage box; 7. Wire; 8. Power connection terminal; 9. Knob; 10. Partition; 11. Isolation cylinder; 12. Gear; 13. Limit block; 14. Slide rail; 15. Rack; 16. Fixing column; 17. Rotating shaft. DETAILED DESCRIPTION

[0024] 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 of 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.

[0025] A cylindrical linear displacement sensor, such as Figure 1-Figure 5 As shown, it comprises a cylinder 1, both ends of the cylinder 1 are threadedly connected with covers 2, one side of one set of covers 2 is fixedly connected with a wire 7 for electrically connecting with the internal parts of the cylinder 1, and the side wall of the cylinder 1 is fixedly connected with a wire take-up assembly;

[0026] The wire taking-up assembly includes a storage box 6, which is fixedly connected to the side wall of the cylinder 1. Two groups of racks 15 are slidably connected inside the storage box 6. One end of the two groups of racks 15 is fixedly connected to a fixing column 16. The two groups of fixing columns 16 are respectively located at two ends of the storage box 6. The wire 7 is wound between the two groups of fixing columns 16, and the end of the wire 7 passes through the side wall of the storage box 6.

[0027] The sensor housing is formed by the sealing cover 2 and the cylinder 1, which is convenient for assembly. The housing is cylindrical as a whole. One end of the sensor wire 7 is connected to the internal parts of the shell, and the other end is inserted into the storage box 6 and is wound around the two groups of fixed columns 16 in an orderly manner. The two groups of racks 15 are controlled to slide so that the distance between the two groups of fixed columns 16 changes. Since the number of turns of the wire 7 is fixed, when the distance between the two groups of fixed columns 16 decreases, the length of the end of the wire 7 pulled out from the inside of the storage box 6 increases. When the distance between the two groups of fixed columns 16 increases, the length of the end of the wire 7 pulled out from the inside of the storage box 6 decreases, which is convenient for changing the pullable length of the end of the wire 7, storing the wire 7 and controlling the use length of the wire 7, and facilitating the use of the sensor.

[0028] A partition 10 is fixedly connected inside the storage box 6 , and slide rails 14 are fixedly connected to both sides of the upper end of the partition 10 . Two groups of racks 15 are slidably connected to the two groups of slide rails 14 .

[0029] like Figure 3-Figure 5 As shown, two groups of racks 15 slide in the slide rails 14 to limit the sliding tracks of the racks 15 and prevent the racks 15 from tilting or falling.

[0030] The middle of the storage box 6 is rotatably connected with a rotating shaft 17 , and both ends of the rotating shaft 17 respectively penetrate the upper end of the storage box 6 and the partition 10 , and both ends of the rotating shaft 17 are fixedly connected with a knob 9 and a limit block 13 , respectively. The knob 9 is located at the upper end of the storage box 6 .

[0031] like Figure 3-Figure 5As shown, by turning the knob 9 , the shaft 17 is rotated, and the limit block 13 is rotated between the partition 10 and the bottom of the storage box 6 .

[0032] The side wall of the rotating shaft 17 is fixedly connected with a gear 12, which is located between the two sets of racks 15, and the gear 12 is meshed with the two sets of racks 15 for transmission. The side wall of the rotating shaft 17 is sleeved with an isolating tube 11, which is located between the gear 12 and the inner wall of the storage box 6.

[0033] like Figure 3-Figure 5 As shown, the shaft 17 rotates with the gear 12, so that the gear 12 drives the two sets of racks 15 to move, so that the two sets of racks 15 slide in opposite directions, and the distance between the two sets of fixed columns 16 is changed. The diameter of the isolation tube 11 is larger than the diameter of the shaft 17. When the wire 7 is wound on the two sets of fixed columns 16, the isolation tube 11 is located between the winding bundles of the wire 7, and supports the middle part of the winding bundle of the wire 7.

[0034] The two ends of the cylinder 1 are both clamped with sealing rings 3, and the sealing rings 3 are squeezed between the end of the cylinder 1 and the cover 2.

[0035] like Figure 2 As shown, the sealing ring 3 seals the ends of the cylinder 1 and the cover 2.

[0036] Two groups of fixing strips 4 are fixedly connected to the side wall of the cylinder 1 , and two groups of mounting seats 5 are sleeved on the side wall of the cylinder 1 . The two groups of mounting seats 5 are respectively abutted and matched with the two groups of fixing strips 4 .

[0037] like Figure 1 As shown, two groups of mounting seats 5 are convenient for installing the sensor, and two groups of fixing strips 4 define the positions of the mounting seats 5 .

[0038] The working principle of a cylindrical linear displacement sensor provided by the utility model is as follows:

[0039] The cover 2 and the cylinder 1 form a sensor housing. The sensor wire 7 is inserted into the storage box 6 and is wound around two groups of fixed columns 16 in an orderly manner. The two groups of racks 15 are controlled to slide so that the distance between the two groups of fixed columns 16 changes, thereby changing the pullable length of the end of the wire 7. The wire 7 is stored and the use length of the wire 7 is controlled, which is convenient for the use of the sensor.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A cylindrical linear displacement sensor, comprising a cylinder (1), characterized in that: Both ends of the cylinder (1) are threadedly connected to sealing covers (2), one side of one set of sealing covers (2) is fixedly connected to a wire (7) for electrically connecting to the internal parts of the cylinder (1), and a wire take-up assembly is fixedly connected to the side wall of the cylinder (1); The wire taking-up assembly comprises a storage box (6), the storage box (6) is fixedly connected to the side wall of the cylinder (1), two groups of racks (15) are slidably connected inside the storage box (6), one end of the two groups of racks (15) is fixedly connected to a fixing column (16), the two groups of fixing columns (16) are respectively located at two ends of the storage box (6), the wire (7) is wound between the two groups of fixing columns (16), and the end of the wire (7) passes through the side wall of the storage box (6).

2. A cylindrical linear displacement sensor according to claim 1, characterized in that: A partition (10) is fixedly connected inside the storage box (6), and slide rails (14) are fixedly connected to both sides of the upper end of the partition (10), and two groups of racks (15) are slidably connected to the two groups of slide rails (14) respectively.

3. A cylindrical linear displacement sensor according to claim 2, characterized in that: The middle part of the storage box (6) is rotatably connected with a rotating shaft (17), and the two ends of the rotating shaft (17) respectively penetrate the upper end of the storage box (6) and the partition (10), and the two ends of the rotating shaft (17) are respectively fixed with a knob (9) and a limit block (13), and the knob (9) is located at the upper end of the storage box (6).

4. A cylindrical linear displacement sensor according to claim 3, characterized in that: The side wall of the rotating shaft (17) is fixedly connected with a gear (12), the gear (12) is located between the two sets of racks (15), and the gear (12) and the two sets of racks (15) are meshed and transmitted. The side wall of the rotating shaft (17) is sleeved with an isolating cylinder (11), and the isolating cylinder (11) is located between the gear (12) and the inner wall of the storage box (6).

5. The cylindrical linear displacement sensor according to claim 1, characterized in that: Both ends of the cylinder (1) are clamped with sealing rings (3), and the sealing rings (3) are squeezed between the end of the cylinder (1) and the sealing cover (2).

6. The cylindrical linear displacement sensor according to claim 1, characterized in that: Said Two sets of fixing strips (4) are fixedly connected to the side wall of the cylinder (1), and two sets of mounting seats (5) are sleeved on the side wall of the cylinder (1). The two groups of mounting seats (5) are respectively abutted and matched with the two groups of fixing strips (4).

Images