CN217304241U - Accurate pressure sensor - Google Patents

Abstract

The utility model discloses an accurate pressure sensor, which relates to the technical field of pressure sensors, comprising a mounting plate, a surface of the mounting plate is fixedly connected with a protective shell, the top of the protective shell is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with a threaded rod The middle part of the threaded rod is threadedly connected with a nut, the left side of the nut is fixedly connected with a support plate, and the bottom end of the support plate is provided with a clamping assembly. By placing the sensor body in the protective shell, the sensor body is protected by the protective shell to prevent the sensor body from being hit, and the baffle is set to prevent the outside dust from entering the protective shell and adsorbing on the sensor body, and pressing the plate to the sensor body The body can be clamped to clamp the sensor bodies of different sizes and expand the use range of the device, and the sensor body can be prevented from being clamped by pressing the rod to first contact the sensor body, thereby increasing the service life of the sensor body.

Description

an accurate pressure sensor

technical field

The utility model relates to the technical field of pressure sensors, in particular to an accurate pressure sensor.

Background technique

In industrial work, a pressure sensor is an indispensable detection device for measuring gas or liquid pressure. However, in the prior art, general pressure sensors often have large detection errors when detecting pressure. , In addition, there is a lack of a stable mounting mechanism.

After searching, the utility model patent with the publication number of CN212621254U discloses an accurate pressure sensor. The device is provided with a series of structures so that the overall pressure detection accuracy is good and the overall practical application value is high.

The above-mentioned device has the following problems in the process of use: the above-mentioned device realizes the protection of the sensing probe by placing the sensing probe in the first groove, but the groove is still hollow, and the outside dust can still enter Into the groove, when used for a long time, a large amount of dust is easily adsorbed on the sensor probe, which will affect the later work efficiency of the device.

Utility model content

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides an accurate pressure sensor, which solves the problems raised in the above-mentioned background art.

(2) Technical solutions

In order to achieve the above purpose, the present invention is achieved by the following technical solutions: an accurate pressure sensor, comprising a mounting plate, a protective shell is fixedly connected to the surface of the mounting plate, a motor is fixedly connected to the top of the protective shell, and the motor is A threaded rod is fixedly connected to the output shaft of the threaded rod, a nut is threadedly connected to the middle of the threaded rod, a support plate is fixedly connected to the left side of the nut, and a clamping assembly is provided at the bottom end of the support plate.

Preferably, the clamping assembly includes a U-shaped shell, the U-shaped shell is fixedly connected to the bottom end of the support plate, the left wall of the U-shaped shell is threadedly connected with a T-shaped screw rod, and the middle part of the T-shaped screw rod A spring one is sleeved, a joint is slidably connected to the lower inner wall of the U-shaped shell, and a wire is fixedly connected to the top of the joint.

Preferably, a pressing plate is rotatably connected to the right side of the T-shaped screw rod, the top end of the pressing plate is fixedly connected with one end of a connecting rod, and the other end of the connecting rod is slidably connected to the lower inner wall of the U-shaped shell, so The left inner wall of the extrusion plate is fixedly connected with a spring three.

Preferably, an extrusion rod is fixedly connected to the right side of the third spring, the top end of the extrusion rod is fixedly connected with an L-shaped iron block, and the left inner wall of the extrusion plate is fixedly connected to the top of the third spring with an extrusion block. .

Preferably, a baffle is hinged on the lower wall of the protective shell, the top end of the baffle is fixedly connected to one end of the second spring, and the other end of the second spring is fixedly connected to the left inner wall of the protective shell.

Preferably, one end of the fixing block is fixedly connected to the right side of the nut, the other end of the fixing block is slidably connected to the right inner wall of the protective shell, and the top end of the protective shell is fixedly connected with the display.

(3) Beneficial effects

The utility model provides an accurate pressure sensor. Has the following beneficial effects:

(1) The precise pressure sensor places the sensor body in the protective shell, protects the sensor body through the protective shell to prevent the sensor body from being hit, and prevents external dust from entering the protective shell and adsorbs to the sensor by setting a baffle plate. On the body, the problem that the dust of the existing device is easily adsorbed on the sensing probe is solved, thereby increasing the service life of the device.

(2) The precise pressure sensor clamps the sensor body through the extrusion plate, so that the sensor body of different sizes can be clamped to expand the use range of the device, and the sensor body is first contacted by the extrusion rod to prevent the sensor body The body is pinched, thereby increasing the service life of the sensor body.

Description of drawings

Fig. 1 is the structural representation of the front view of the utility model;

2 is a schematic structural diagram of the clamping assembly of the present invention;

FIG. 3 is a schematic structural diagram of part A in FIG. 2 of the present utility model.

In the figure: 1. Baffle plate; 2. Clamping assembly; 201, U-shaped shell; 202, T-shaped screw rod; 203, L-shaped iron block; 204, Extrusion rod; 205, Extrusion plate; 3. Mounting plate ; 4, support plate; 5, threaded rod; 6, protective shell; 7, motor; 8, display.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1-FIG. 3, the present utility model provides a technical solution: an accurate pressure sensor, comprising a mounting plate 3, four corners of the mounting plate 3 are provided with threaded holes, through which the mounting plate 3 can be matched with the threaded holes. The device is fixed, and the surface of the mounting plate 3 is fixedly connected with a protective shell 6. By placing the sensor body in the protective shell 6, the sensor body is protected by the protective shell 6 to prevent the sensor body from being impacted. The dust enters the protective shell 6 and is adsorbed on the sensor body, which solves the problem that the dust of the existing device is easily adsorbed on the sensing probe, thereby increasing the service life of the device. The lower wall of the protective shell 6 is hinged with a baffle 1, and the baffle 1 The top end is fixedly connected with one end of spring two, and the other end of spring two is fixedly connected to the left inner wall of the protective shell 6. The purpose of setting spring two is to support and reset the baffle 1, and the top of the protective shell 6 is fixedly connected. There is a motor 7, and the rotation direction of the output shaft of the motor 7 can be adjusted, either clockwise or counterclockwise, so that the nut can be moved up and down.

In this embodiment, a threaded rod 5 is fixedly connected to the output shaft of the motor 7 , a nut is threadedly connected to the middle of the threaded rod 5 , one end of a fixing block is fixedly connected to the right side of the nut, and the other end of the fixing block is slidably connected to the protective shell 6 . On the right inner wall, the purpose of setting the fixing block is to support the nut, the top of the protective shell 6 is fixedly connected with a display 8, the display 8 is the prior art, and the display 8 is connected with the connector by wires, so that the data detected by the sensor body is It is displayed on the display 8 through the wire. The wire runs through and is slidably connected to the inside of the U-shaped shell 201 and the support plate 4, and the length of the wire is enough to support the support plate 4 to move up and down. The left side of the nut is fixedly connected with the support plate 4, which supports The bottom end of the plate 4 is provided with a clamping assembly 2, the clamping assembly 2 includes a U-shaped shell 201, and a detector body is placed in the U-shaped shell 201. The shell 201 is fixedly connected to the bottom end of the support plate 4, the left wall of the U-shaped shell 201 is threadedly connected with a T-shaped screw rod 202, and the right side of the T-shaped screw rod 202 is rotatably connected with a pressing plate 205, and the sensor is connected to the sensor through the pressing plate 205. The main body is clamped, so that the sensor bodies of different sizes can be clamped, and the use range of the device can be expanded, and the sensor body is prevented from being clamped by the extrusion rod 204 first contacting the sensor body, thereby increasing the service life of the sensor body and squeezing the body. The top end of the pressing plate 205 is fixedly connected with one end of the connecting rod, and the other end of the connecting rod is slidably connected to the lower inner wall of the U-shaped shell 201. The purpose of setting the connecting rod is that when the T-shaped screw rod 202 rotates, only the pressing plate will be driven. The movement of 205 left and right does not drive the extrusion plate 205 to rotate.

In this embodiment, the left inner wall of the pressing plate 205 is fixedly connected with the spring three, the right side of the spring three is fixedly connected with the pressing rod 204, the pressing rod 204 penetrates and is slidably connected to the right wall of the pressing plate 205, and the pressing rod The top of 204 is fixedly connected with an L-shaped iron block 203, the left inner wall of the extrusion plate 205 is fixedly connected with an extrusion block above the spring three, the middle of the T-shaped screw rod 202 is sleeved with a spring one, and the lower inner wall of the U-shaped shell 201 is slidably connected There are connectors, and the purpose of setting the connectors is to connect the sensor body with the connectors so that the detected data is transmitted to the display 8 through the wires, and the top ends of the connectors are fixedly connected with wires.

When working or in use, when the device starts to work, first place the detector body in the U-shaped shell 201, connect the detector body with the connector, and then rotate the T-shaped screw rod 202 clockwise, when the T-shaped screw rod 202 When rotating, it will drive the pressing plate 205 to move to the right. When the pressing plate 205 moves to the right, the pressing rod 204 will first contact the detector body. When the pressing rod 204 contacts the detector body, it will move to the left under pressure. , drive the L-shaped iron block 203 to move together. When the L-shaped iron block 203 contacts the extrusion block, it means that the clamping has been completed. At this time, the motor 7 is turned on, so that the motor 7 drives the threaded rod 5 to rotate clockwise. When the rod 5 rotates clockwise, the nut will move down, the nut will drive the support plate 4 to move down, the support plate 4 will drive the U-shaped shell 201 to move down, and the U-shaped shell 201 will drive the detector body to move down. When moving down and touching the baffle 1, the baffle 1 will be slightly rotated downward to open the baffle 1 to extend the detector body. At this time, the detector body can be opened to start working, and the detected data will be transmitted to the display 8 through the wire. When the detector body needs to be retracted into the protective shell 6, the direction of rotation of the output shaft of the motor 7 can be adjusted, and the baffle 1 will also be reset due to the reverse elasticity of the spring 3. When the detector body needs to be removed When removing, just turn the T-shaped screw rod 202 in the opposite direction.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. An accurate pressure sensor, comprising a mounting plate (3), characterized in that: mounting panel (3) fixed surface is connected with protective housing (6), protective housing (6) top fixedly connected with motor (7), output shaft fixedly connected with threaded rod (5) of motor (7), the middle part threaded connection of threaded rod (5) has the nut, the left side fixedly connected with backup pad (4) of nut, the bottom of backup pad (4) is provided with clamping component (2).

2. A precision pressure sensor as claimed in claim 1, wherein: clamping component (2) is including U-shaped shell (201), U-shaped shell (201) fixed connection is in the bottom of backup pad (4), wall threaded connection has T shape lead screw (202) about U-shaped shell (201), spring one has been cup jointed at T shape lead screw (202) middle part, inner wall sliding connection has the joint under U-shaped shell (201), the top fixedly connected with electric wire that connects.

3. A precision pressure sensor according to claim 2, wherein: t shape lead screw (202) right side is rotated and is connected with stripper plate (205), the one end of stripper plate (205) top fixedly connected with connecting rod, the lower inner wall of the other end sliding connection of connecting rod at U-shaped shell (201), stripper plate (205) left side inner wall fixedly connected with spring is three.

4. A precision pressure sensor according to claim 3, wherein: the right side of the third spring is fixedly connected with an extrusion rod (204), the top end of the extrusion rod (204) is fixedly connected with an L-shaped iron block (203), and the left inner wall of the extrusion plate (205) is close to the upper portion of the third spring and is fixedly connected with an extrusion block.

5. A precision pressure sensor as claimed in claim 1, wherein: the lower wall of the protective shell (6) is hinged to a baffle (1), the top end of the baffle (1) is fixedly connected with one end of a second spring, and the other end of the second spring is fixedly connected to the left inner wall of the protective shell (6).

6. A precision pressure sensor as claimed in claim 1, wherein: the nut right side fixedly connected with one end of fixed block, the other end sliding connection of fixed block is at the right inner wall of protective housing (6), the top fixedly connected with display (8) of protective housing (6).

Images