Pressure sensor

Abstract

The utility model discloses a pressure sensor, which belongs to the technical field of pressure sensors and comprises a bottom shell, a workbench and a connecting block are arranged at the bottom of the bottom shell, a connecting device is arranged on the connecting block, locking devices are arranged on two sides of the bottom shell, and a first sealing ring and a top shell are arranged at the top of the bottom shell. According to the pressure sensor, a limiting wheel is pulled to be separated from the bottom shell, then the limiting wheel is rotated to enable a T-shaped rod to drive one transmission wheel to rotate, a guide rod drives a wire wheel to rotate through cooperation of a tooth-shaped belt, and a steel wire rope is wound on the wire wheel through rotation of the wire wheel; therefore, the push rod is pulled to retract into the connecting block, then the connecting block is inserted into the workbench, the push rod is inserted into the workbench through the elastic force of the limiting spring, and then the limiting wheel is inserted into the bottom shell through the assistance of the elastic force of the connecting spring, so that the rapid installation and fixation of the pressure sensor are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure sensors, in particular to a pressure sensor. Background Art

[0002] A pressure sensor is a device that can sense pressure signals and convert them into electrical signal outputs. It is usually composed of a pressure sensitive element and a signal processing unit. Pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors. Pressure sensors are widely used in industrial control, environmental monitoring, medical equipment, automotive electronics and other fields. Traditional pressure sensors are often fixed on the workbench by multiple sets of bolts, which greatly reduces the efficiency of installation and disassembly of the pressure sensor. Traditional pressure sensors are often exposed to the outside and are therefore easily contaminated by the outside world, which greatly reduces the practicality of the traditional pressure sensor. Utility Model Content

[0003] In order to overcome the above defects, the utility model provides a pressure sensor, which solves the problem that the traditional pressure sensor is not convenient for quick installation and disassembly, and is easily polluted by the outside world.

[0004] To achieve the above object, the utility model provides the following technical solution: a pressure sensor, comprising a bottom shell, a workbench and a connecting block are arranged at the bottom of the bottom shell, a connecting device is arranged on the connecting block, locking devices are arranged on both sides of the bottom shell, a sealing ring 1 and a top shell are arranged at the top of the bottom shell, a data transmission line is arranged on the bottom shell, a sensor body and a sensor connector are arranged in the bottom shell, and a sealing ring 2 is arranged on the top shell;

[0005] The connecting device includes a limiting wheel, a connecting spring and a T-shaped rod are arranged on the limiting wheel, a toothed belt is arranged at one end of the T-shaped rod, transmission wheels are arranged at both ends of the toothed belt, a guide rod is arranged on the transmission wheel, wire wheels are arranged at both ends of the guide rod, and steel wire ropes, limiting springs and push rods are arranged on both sides of the wire wheel.

[0006] As a further solution of the utility model: the sensor body is installed in the bottom shell, the sensor connector is installed on the top of the sensor body, the data transmission line passes through the bottom shell and is fixedly connected to the sensor body, the connecting block is plugged into the workbench, the limiting wheel and the T-shaped rod are both plugged into the bottom shell, one end of the T-shaped rod is slidably connected to the limiting wheel, the connecting spring is fixedly connected to the bottom shell, and one end of the connecting spring is rotatably connected to the limiting wheel through a bearing.

[0007] As a further solution of the utility model: the transmission wheel is fixedly connected to the guide rod and the T-shaped rod respectively, the toothed belt is installed on the transmission wheel, the wire wheel is fixedly connected to the two ends of the guide rod, one end of the wire rope is fixedly connected to the wire wheel, and the other end of the wire rope passes through the limit spring and is fixedly connected to the top rod.

[0008] As a further solution of the utility model: the push rod is slidably connected in the connecting block, and one end of the push rod passes through the connecting block and is inserted in the workbench, the limit spring is fixedly connected to the push rod, the sealing ring 1 is fixedly connected to the top of the bottom shell, the top shell is inserted on the bottom shell, the sealing ring 2 is fixedly connected to the top of the top shell, the sealing ring 2 is sleeved on the sensor joint, and the sealing ring 1 is sleeved on the top shell.

[0009] As a further solution of the utility model: the locking device includes a connecting rod, one end of the connecting rod is fixedly connected to a slider, and the other end of the connecting rod is rotatably connected to an inclined block through a bearing, an auxiliary block and a locking spring are arranged on the connecting rod, a pull ring is installed on the connecting rod, and the auxiliary block is fixedly connected to both sides of the bottom shell.

[0010] As a further solution of the utility model: the connecting rod is inserted into the auxiliary block and the bottom shell, the sliding block is slidably connected in the auxiliary block, the inclined block is slidably connected in the bottom shell and the auxiliary block, and one end of the inclined block passes through the bottom shell and is inserted into the top shell, the two ends of the locking spring are respectively overlapped on the inclined block and the auxiliary block, and the locking spring is sleeved on the connecting rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The pressure sensor is disengaged from the bottom shell by pulling the limit wheel, and then the limit wheel is rotated so that the T-shaped rod drives one of the transmission wheels to rotate, and the guide rod drives the wire wheel to rotate through the cooperation of the toothed belt. The rotation of the wire wheel causes the wire rope to be wound around it, thereby pulling the top rod to retract into the connecting block, and then the connecting block is inserted into the workbench, and the elastic force of the limit spring is used to plug the top rod into the workbench, and then the limit wheel is plugged into the bottom shell with the assistance of the elastic force of the connecting spring, thereby realizing the rapid installation and fixation of the pressure sensor.

[0013] 2. For the pressure sensor, when the top shell is inserted into the bottom shell, the interior of the bottom shell is sealed through the cooperation of the sealing ring 1 and the sealing ring 2, and the top shell squeezes the inclined surface of the inclined block to shrink it, and then the elastic force of the locking spring is used to insert the inclined block into the top shell, and the inclined block is contracted by pulling the connecting rod, and then the connecting rod is rotated to limit the inclined block through the cooperation of the slider and the locking spring, so that the staff can quickly remove the top shell, and the mutual cooperation between the bottom shell and the top shell greatly reduces the risk of external contamination of the sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection device of the utility model;

[0016] Figure 3 It is a schematic diagram of the locking device of the utility model;

[0017] In the figure: 1. bottom shell; 2. workbench; 3. data transmission line; 4. sealing ring 1; 5. connecting device; 501. limit wheel; 502. connecting spring; 503. T-shaped rod; 504. top rod; 505. transmission wheel; 506. toothed belt; 507. guide rod; 508. wire wheel; 509. wire rope; 510. limit spring; 6. locking device; 601. connecting rod; 602. auxiliary block; 603. slider; 604. locking spring; 605. inclined block; 7. sensor body; 8. sensor connector; 9. top shell; 10. sealing ring 2; 11. connecting block. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] like Figure 1-3 As shown, the utility model provides a technical solution: a pressure sensor, comprising a bottom shell 1, a workbench 2 and a connecting block 11 are arranged at the bottom of the bottom shell 1, a connecting device 5 is arranged on the connecting block 11, locking devices 6 are arranged on both sides of the bottom shell 1, the locking device 6 comprises a connecting rod 601, one end of the connecting rod 601 is fixedly connected to a slider 603, and the other end of the connecting rod 601 is rotatably connected to an inclined block 605 through a bearing, an auxiliary block 602 and a locking spring 604 are arranged on the connecting rod 601, a pull ring is installed on the connecting rod 601, and the auxiliary block 602 is fixedly connected to both sides of the bottom shell 1; when the top shell 9 is inserted into the bottom shell 1, the top shell 9 will squeeze the inclined block 605 to shrink, and then the elastic force of the locking spring 604 is used to fix the top shell 9 to the inclined block 605.

[0020] The connecting rod 601 is inserted into the auxiliary block 602 and the bottom shell 1, the slider 603 is slidably connected in the auxiliary block 602, the inclined block 605 is slidably connected in the bottom shell 1 and the auxiliary block 602, and one end of the inclined block 605 passes through the bottom shell 1 and is inserted into the top shell 9, the two ends of the locking spring 604 are respectively overlapped on the inclined block 605 and the auxiliary block 602, and the locking spring 604 is sleeved on the connecting rod 601; pull the pull ring on the connecting rod 601 to shrink the inclined block 605, and then rotate the connecting rod 601 through the cooperation of the slider 603 and the locking spring 604, so as to limit the inclined block 605, so as to remove the top shell 9.

[0021] A sealing ring 4 and a top shell 9 are provided on the top of the bottom shell 1, a data transmission line 3 is provided on the bottom shell 1, a sensor body 7 and a sensor connector 8 are provided in the bottom shell 1, the sensor body 7 is installed in the bottom shell 1, the sensor connector 8 is installed on the top of the sensor body 7, the data transmission line 3 passes through the bottom shell 1 and is fixedly connected to the sensor body 7, the connecting block 11 is plugged into the workbench 2, the limiting wheel 501 and the T-shaped rod 503 are both plugged into the bottom shell 1, one end of the T-shaped rod 503 is slidably connected to the limiting wheel 501, the connecting spring 502 is fixedly connected to the bottom shell 1, and one end of the connecting spring 502 is rotatably connected to the limiting wheel 501 through a bearing; the connecting spring 502 is used to assist the limiting wheel 501 to be plugged into the bottom shell 1, thereby preventing the rotation of the T-shaped rod 503, so as to limit the top rod 504.

[0022] A sealing ring 10 is provided on the top shell 9, and the connecting device 5 includes a limiting wheel 501, and a connecting spring 502 and a T-shaped rod 503 are provided on the limiting wheel 501. A toothed belt 506 is provided at one end of the T-shaped rod 503, and a transmission wheel 505 is provided at both ends of the toothed belt 506. The transmission wheel 505 is respectively fixedly connected to the guide rod 507 and the T-shaped rod 503, and the toothed belt 506 is installed on the transmission wheel 505. The wire wheel 508 is fixedly connected to the two ends of the guide rod 507, and one end of the wire rope 509 is fixedly connected to the wire wheel 508, and the other end of the wire rope 509 passes through the limiting spring 510 and is fixedly connected to the top rod 504; the rotation of the T-shaped rod 503 is coordinated by the transmission wheel 505 and the toothed belt 506, so that the wire wheel 508 rotates, and the wire rope 509 pulls the top rod 504 to shrink.

[0023] A guide rod 507 is provided on the transmission wheel 505, and wire wheels 508 are provided at both ends of the guide rod 507. Steel wire ropes 509, limit springs 510 and push rods 504 are provided on both sides of the wire wheels 508. The push rod 504 is slidably connected in the connecting block 11, and one end of the push rod 504 passes through the connecting block 11 and is inserted into the workbench 2. The limit spring 510 is fixedly connected to the push rod 504, the sealing ring 14 is fixedly connected to the top of the bottom shell 1, the top shell 9 is inserted into the bottom shell 1, the sealing ring 210 is fixedly connected to the top of the top shell 9, the sealing ring 210 is sleeved on the sensor joint 8, and the sealing ring 14 is sleeved on the top shell 9; the cooperation of the bottom shell 1 and the top shell 9 effectively prevents external debris from corroding and polluting the sensor body 7, and the elastic force of the limit spring 510 is used to make the push rod 504 inserted into the workbench 2, thereby limiting the connecting block 11.

[0024] The working principle of the utility model is as follows: pull the limiting wheel 501 and rotate it, so that the T-shaped rod 503 cooperates with the transmission wheel 505 and the toothed belt 506, so that the guide rod 507 drives the wire wheel 508 to rotate, and pulls the top rod 504 to retract into the connecting block 11 through the wire rope 509, and then the connecting block 11 is inserted into the workbench 2, and the top rod 504 is limited to the connecting block 11 by the elastic force of the limiting spring 510, and then with the assistance of the connecting spring 502, the limiting wheel 501 is used to limit the top rod 504, and then when the top shell 9 is inserted into the bottom shell 1, the top shell 9 will squeeze the inclined surface of the inclined block 605 to make it retract, and then the elastic force of the locking spring 604 is used to limit the top shell 9, and then by pulling the connecting rod 601 and rotating it, the top shell 9 is quickly removed through the cooperation of the slider 603 and the locking spring 604.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A pressure sensor, comprising a bottom shell (1), characterized in that: A workbench (2) and a connecting block (11) are arranged at the bottom of the bottom shell (1), a connecting device (5) is arranged on the connecting block (11), locking devices (6) are arranged on both sides of the bottom shell (1), a sealing ring (4) and a top shell (9) are arranged on the top of the bottom shell (1), a data transmission line (3) is arranged on the bottom shell (1), a sensor body (7) and a sensor connector (8) are arranged inside the bottom shell (1), and a sealing ring (10) is arranged on the top shell (9); The connecting device (5) comprises a limiting wheel (501), a connecting spring (502) and a T-shaped rod (503) are arranged on the limiting wheel (501), a toothed belt (506) is arranged at one end of the T-shaped rod (503), a transmission wheel (505) is arranged at both ends of the toothed belt (506), a guide rod (507) is arranged on the transmission wheel (505), a wire wheel (508) is arranged at both ends of the guide rod (507), and a steel wire rope (509), a limiting spring (510) and a push rod (504) are arranged on both sides of the wire wheel (508).

2. A pressure sensor according to claim 1, characterized in that: The sensor body (7) is installed in the bottom shell (1), the sensor connector (8) is installed on the top of the sensor body (7), the data transmission line (3) passes through the bottom shell (1) and is fixedly connected to the sensor body (7), the connection block (11) is plugged into the workbench (2), the limit wheel (501) and the T-shaped rod (503) are both plugged into the bottom shell (1), one end of the T-shaped rod (503) is slidably connected to the limit wheel (501), the connection spring (502) is fixedly connected to the bottom shell (1), and one end of the connection spring (502) is rotatably connected to the limit wheel (501) through a bearing.

3. A pressure sensor according to claim 2, characterized in that: The transmission wheel (505) is fixedly connected to the guide rod (507) and the T-shaped rod (503) respectively, the toothed belt (506) is installed on the transmission wheel (505), the wire wheel (508) is fixedly connected to both ends of the guide rod (507), one end of the steel wire rope (509) is fixedly connected to the wire wheel (508), and the other end of the steel wire rope (509) passes through the limit spring (510) and is fixedly connected to the top rod (504).

4. A pressure sensor according to claim 3, characterized in that: The push rod (504) is slidably connected to the connecting block (11), and one end of the push rod (504) passes through the connecting block (11) and is inserted into the workbench (2); the limit spring (510) is fixedly connected to the push rod (504); the sealing ring 1 (4) is fixedly connected to the top of the bottom shell (1); the top shell (9) is inserted into the bottom shell (1); the sealing ring 2 (10) is fixedly connected to the top of the top shell (9); the sealing ring 2 (10) is sleeved on the sensing joint (8); and the sealing ring 1 (4) is sleeved on the top shell (9).

5. A pressure sensor according to claim 4, characterized in that: The locking device (6) comprises a connecting rod (601), one end of which is fixedly connected to a slider (603), and the other end of which is rotatably connected to an inclined block (605) via a bearing, an auxiliary block (602) and a locking spring (604) are provided on the connecting rod (601), a pull ring is installed on the connecting rod (601), and the auxiliary block (602) is fixedly connected to both sides of the bottom shell (1).

6. A pressure sensor according to claim 5, characterized in that: The connecting rod (601) is inserted into the auxiliary block (602) and the bottom shell (1), the sliding block (603) is slidably connected to the auxiliary block (602), the inclined block (605) is slidably connected to the bottom shell (1) and the auxiliary block (602), and one end of the inclined block (605) passes through the bottom shell (1) and is inserted into the top shell (9), the two ends of the locking spring (604) are respectively overlapped on the inclined block (605) and the auxiliary block (602), and the locking spring (604) is sleeved on the connecting rod (601).

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