CN210893484U

CN210893484U - High-precision pressure sensor

Info

Publication number: CN210893484U
Application number: CN201921799687.4U
Authority: CN
Inventors: 王力雄
Original assignee: Shenzhen Penglida Sensor Instrument Co ltd
Current assignee: Shenzhen Penglida Sensor Instrument Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-30
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a high accuracy formula pressure sensor, including sensor body and base, the top of base is equipped with the cavity, the cavity internal rotation is connected with the screw rod, the fixed cover has been connected with first gear on the screw rod, be equipped with the second gear with first gear engaged with in the cavity, the inner wall of second gear and cavity passes through the bull stick and rotates the connection, the inner wall and the fixedly connected with knob of cavity are run through to the one end of bull stick, the one end of screw rod runs through the interior top of cavity and upwards extends, the thread sleeve has been cup jointed to the one end screw thread that the screw rod extends, the top of thread sleeve and the bottom fixed connection of sensor body. The utility model discloses in through adjustment mechanism and supporting mechanism's setting, make the sensor adjust when using, stability has obtained the improvement simultaneously to the measurement stability of sensor has been promoted.

Description

High-precision pressure sensor

Technical Field

The utility model relates to a pressure sensor technical field especially relates to a high accuracy formula pressure sensor.

Background

A pressure sensor is a device or apparatus that senses a pressure signal and converts the pressure signal into a usable output electrical signal according to a certain rule.

But current pressure sensor's external structure is comparatively simple, can not effectually adjust the pressure sensor body during the installation, thereby can not effectually prevent that the pressure sensor body from appearing rocking the phenomenon when measuring and causing the measurement inaccuracy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art pressure sensor's exterior structure comparatively simple, can not effectually adjust the pressure sensor body during the installation, thereby can not effectually prevent that the pressure sensor body from appearing rocking the phenomenon when measuring and causing the inaccurate problem of measurement, and the high accuracy formula pressure sensor who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-precision pressure sensor comprises a sensor body and a base, wherein the top of the base is provided with a cavity, a screw rod is rotationally connected in the cavity, a first gear is fixedly sleeved on the screw rod, a second gear meshed with the first gear is arranged in the cavity, the second gear is rotatably connected with the inner wall of the cavity through a rotating rod, one end of the rotating rod penetrates through the inner wall of the cavity and is fixedly connected with a knob, one end of the screw rod penetrates through the inner top of the cavity and extends upwards, a thread sleeve is sleeved at the extending end of the screw rod in a threaded manner, the top of the thread sleeve is fixedly connected with the bottom of the sensor body, the outer wall of the sensor body is sleeved with a supporting sleeve in a sliding manner, the bottom of the support sleeve is fixedly connected with a sliding sleeve, a sliding rod is inserted in the sliding sleeve in a sliding mode, and the bottom of the sliding rod is fixedly connected with the top of the base.

Preferably, the bottom of the sensor body is fixedly connected with a plurality of fixing blocks, and the fixing blocks are connected with the support sleeve through damping shock absorbers.

Preferably, the sliding rod is sleeved with a first spring, and two ends of the first spring are fixedly connected with the sliding sleeve and the base respectively.

Preferably, one end of the screw rod, which is positioned in the threaded sleeve, is fixedly connected with a limiting block.

Preferably, a clamping rod is slidably inserted into one end of the knob, a plurality of clamping grooves corresponding to the clamping rod are formed in the outer wall of the base in an encircling mode, a clamping sleeve is fixedly sleeved at one end, close to the base, of the clamping rod, and a pull rod is fixedly connected at one end, far away from the clamping sleeve, of the clamping rod.

Preferably, the clamping rod is sleeved with a second spring, and two ends of the second spring are fixedly connected with the clamping sleeve and the knob respectively.

Preferably, the bottom of base fixedly connected with a plurality of latch segments, be equipped with the latch port on the latch segment.

Has the advantages that:

1. the base is fixed by the locking block, the knob is rotated to drive the rotating rod to rotate, and the screw rod is driven to rotate through the meshing action between the first gear and the second gear, so that the threaded sleeve is driven to move up and down, the height of the sensor body is adjusted, the knob is fixed by the clamping rod, and meanwhile, the support sleeve can effectively prevent the sensor body from shaking;

2. simultaneously, the damping shock absorber can play a certain shock absorption and buffering role on the sensor body, meanwhile, the sliding rod can effectively prevent the sensor body from shaking, and the limiting block can prevent the screw from falling off from the threaded sleeve.

Drawings

Fig. 1 is a schematic structural diagram of a high-precision pressure sensor according to the present invention;

fig. 2 is the utility model provides a side view structure schematic diagram of high accuracy formula pressure sensor bull stick department.

In the figure: the sensor comprises a sensor body 1, a base 2, a screw rod 3, a first gear 4, a second gear 5, a rotating rod 6, a knob 7, a threaded sleeve 8, a supporting sleeve 9, a sliding sleeve 10, a sliding rod 11, a fixed block 12, a damping shock absorber 13, a first spring 14, a limiting block 15, a clamping rod 16, a clamping sleeve 17, a pull rod 18, a second spring 19 and a locking block 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a high-precision pressure sensor comprises a sensor body 1 and a base 2, a cavity is arranged at the top of the base 2, a screw rod 3 is rotatably connected in the cavity and used for adjusting the height of the sensor body 1, a first gear 4 is fixedly sleeved on the screw rod 3, a second gear 5 meshed with the first gear 4 is arranged in the cavity and used for driving the first gear 4 to rotate, the second gear 5 is rotatably connected with the inner wall of the cavity through a rotating rod 6 and used for driving the screw rod 3 to rotate, one end of the rotating rod 6 penetrates through the inner wall of the cavity and is fixedly connected with a knob 7, one end of the screw rod 3 penetrates through the inner top of the cavity and extends upwards, a thread sleeve 8 is sleeved at one end of the screw rod 3 for supporting the sensor body 1, the top of the thread sleeve 8 is fixedly connected with the bottom of the sensor body 1, a supporting sleeve 9 is sleeved on the outer wall of, the sensor body is used for supporting the sensor body 1, the bottom of the supporting sleeve 9 is fixedly connected with a sliding sleeve 10, a sliding rod 11 is inserted in the sliding sleeve 10 in a sliding mode and used for supporting the sliding sleeve 10, and the bottom of the sliding rod 11 is fixedly connected with the top of the base 2.

In this embodiment, the bottom of the sensor body 1 is fixedly connected with a plurality of fixed blocks 12, the fixed blocks 12 are connected with the support sleeve 9 through a damping shock absorber 13, and play a certain role in damping and buffering for the sensor body 1, the sliding rod 11 is sleeved with a first spring 14, two ends of the first spring 14 are respectively fixedly connected with the sliding sleeve 10 and the base 2, and play a certain role in elastic buffering for the sliding sleeve 10, one end of the screw rod 3 located in the threaded sleeve 8 is fixedly connected with a limit block 15 to prevent the screw rod 3 from falling off from the threaded sleeve 8, one end of the knob 7 is slidably inserted with a clamping rod 16, a plurality of clamping grooves corresponding to the clamping rod 16 are circumferentially arranged on the outer wall of the base 2, one end of the clamping rod 16 close to the base 2 is fixedly sleeved with a clamping sleeve 17 to prevent the clamping rod 16 from falling off from the knob 7, one end of the clamping rod 16 far away from the clamping sleeve 17 is, the both ends of second spring 19 respectively with cutting ferrule 17 and knob 7 fixed connection, play certain elastic support to kelly 16, a plurality of latch segments 20 of base 2's bottom fixedly connected with are equipped with the check lock mouth on the latch segment 20, make things convenient for unable adjustment base 2.

In this embodiment, utilize latch segment 20 to fix base 2 earlier, then rotate knob 7 and drive bull stick 6 and rotate, the meshing effect through between first gear 4 and the second gear 5 drives screw rod 3 and rotates simultaneously, thereby it reciprocates to drive thread bush 8, adjust the height of sensor body 1, then utilize kelly 16 to fix knob 7, support cover 9 simultaneously and can effectively prevent rocking of sensor body 1, damping bumper shock absorber 13 can play certain shock attenuation cushioning effect to sensor body 1 simultaneously, slide bar 11 can effectively prevent that sensor body 1 from rocking simultaneously, stopper 15 can prevent that screw rod 3 from droing in the thread bush 8.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high accuracy formula pressure sensor, includes sensor body (1) and base (2), its characterized in that: the sensor is characterized in that a cavity is arranged at the top of the base (2), a screw rod (3) is connected in the cavity in a rotating manner, a first gear (4) is fixedly sleeved on the screw rod (3), a second gear (5) meshed with the first gear (4) is arranged in the cavity, the second gear (5) is rotatably connected with the inner wall of the cavity through a rotating rod (6), one end of the rotating rod (6) penetrates through the inner wall of the cavity and is fixedly connected with a knob (7), one end of the screw rod (3) penetrates through the inner top of the cavity and extends upwards, a threaded sleeve (8) is sleeved on one extending end of the screw rod (3) in a threaded manner, the top of the threaded sleeve (8) is fixedly connected with the bottom of the sensor body (1), a supporting sleeve (9) is sleeved on the outer wall of the sensor body (1) in a sliding manner, and a sliding sleeve (10) is fixedly connected with, a sliding rod (11) is inserted in the sliding sleeve (10) in a sliding mode, and the bottom of the sliding rod (11) is fixedly connected with the top of the base (2).

2. A high accuracy pressure sensor as in claim 1, wherein: the bottom fixedly connected with of sensor body (1) a plurality of fixed blocks (12), fixed block (12) are connected through damping bumper shock absorber (13) with supporting cover (9).

3. A high accuracy pressure sensor as in claim 1, wherein: the sliding rod (11) is sleeved with a first spring (14), and two ends of the first spring (14) are fixedly connected with the sliding sleeve (10) and the base (2) respectively.

4. A high accuracy pressure sensor as in claim 1, wherein: and one end of the screw rod (3) positioned in the thread sleeve (8) is fixedly connected with a limiting block (15).

5. A high accuracy pressure sensor as in claim 1, wherein: the one end of knob (7) slides and inserts and is equipped with kelly (16), it is equipped with a plurality of draw-in grooves that correspond with kelly (16) to surround on the outer wall of base (2), the fixed cover of one end that kelly (16) is close to base (2) has connect cutting ferrule (17), one end fixedly connected with pull rod (18) of cutting ferrule (17) are kept away from in kelly (16).

6. A high accuracy pressure sensor as in claim 5, wherein: the clamping rod (16) is sleeved with a second spring (19), and two ends of the second spring (19) are fixedly connected with the clamping sleeve (17) and the knob (7) respectively.

7. A high accuracy pressure sensor as in claim 1, wherein: the bottom fixedly connected with of base (2) has a plurality of latch segments (20), be equipped with the check lock on latch segment (20).