CN219608174U

CN219608174U - Explosion-proof weighing sensor

Info

Publication number: CN219608174U
Application number: CN202320430245.2U
Authority: CN
Inventors: 常海泉
Original assignee: Shanghai Changheng Electronic Technology Co ltd
Current assignee: Shanghai Changheng Electronic Technology Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-08-29
Anticipated expiration: 2033-03-09

Abstract

The utility model belongs to the technical field of weighing sensors, in particular to an explosion-proof weighing sensor, which aims at the problem that when an existing weighing sensor is used, an overload object is placed on a weighing plate instantly, and damage to the sensor is likely to occur. The weighing instrument is simple in mechanism and convenient to use, can be used for conveniently protecting the weighing instrument during weighing, and can also be used for adjusting the upper limit of protection, so that the weighing instrument is convenient for people to use.

Description

Explosion-proof weighing sensor

Technical Field

The utility model relates to the technical field of weighing sensors, in particular to an explosion-proof weighing sensor.

Background

A force sensor used on a weighing sensor. The principle of a resistance strain type weighing sensor can convert the gravity acting on an object to be measured into a quantifiable output signal according to a certain proportion. The performance indexes of the weighing sensor mainly comprise linear errors, hysteresis errors, repeatability errors, creep, zero temperature characteristics, sensitivity temperature characteristics and the like.

When the existing weighing sensor is used, an overload object is placed on the weighing plate at one moment, so that the sensor can be damaged, and an explosion-proof weighing sensor is provided.

Disclosure of Invention

The utility model aims to solve the defect that when the existing weighing sensor is used, an overload object is placed on a weighing plate instantly, so that the sensor is possibly damaged.

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

the utility model provides an explosion-proof weighing sensor, includes the casing, slidable mounting has the fly leaf on the inner wall of casing, gravity sensor is installed at the top of fly leaf, install the bracing piece on the gravity sensor, place the board is installed on the top of bracing piece, the bottom fixed mounting of placing the board has the backing plate that two symmetries set up, the bottom of fly leaf is equipped with buffer gear, sliding connection has the locating plate on the inner wall of casing, locating plate and buffer gear mutually support, be equipped with adjustment mechanism in the casing, adjustment mechanism is connected with the locating plate transmission, the bottom fixed mounting of casing has the bottom plate, the bottom of bottom plate is fixed with four cushion that the symmetry set up, and the display screen is installed to one side of casing, the display screen is connected with gravity sensor.

Preferably, the buffer mechanism comprises two buffer seats and two buffer rods, the two buffer seats are fixedly connected with the movable plate, the two buffer rods are fixedly connected with the positioning plate, and the buffer seats are in sliding connection with the corresponding buffer rods.

Preferably, the bottom of buffering seat has offered the dashpot, and fixed mounting has buffer spring on the top inner wall of dashpot, buffer spring's bottom and buffer rod fixed connection.

Preferably, the adjusting mechanism comprises four screws, the four screws are rotatably arranged on the inner wall of the shell, the four screws are in transmission connection, the top of the shell is rotatably connected with a rotating plate, and the rotating plate is fixedly connected with the corresponding screws.

Preferably, the screw is fixedly sleeved with a chain wheel, and the four chain wheels are meshed with the same chain.

Compared with the prior art, the utility model has the advantages that:

according to the scheme, due to the arrangement of the buffer spring and the buffer groove and the effect of the base plate on the placing plate, the buffer can be carried out when the object is weighed, and the object is prevented from being overweight, so that the gravity sensor is damaged;

because the four sprockets and the intermeshing of chain, and screw rod and the threaded connection of locating plate to can make pivoted commentaries on classics board drive the locating plate and upwards remove, and then adjust the distance between backing plate and the casing, thereby when adjusting weighing, the upper limit of protection of gravity sensor.

The weighing instrument is simple in mechanism and convenient to use, can be used for conveniently protecting the weighing instrument during weighing, and can also be used for adjusting the upper limit of protection, so that the weighing instrument is convenient for people to use.

Drawings

FIG. 1 is a schematic diagram of an explosion-proof weighing sensor according to the present utility model;

fig. 2 is a schematic diagram of a casing and an inner gear ring of an explosion-proof weighing sensor according to the present utility model;

fig. 3 is a schematic diagram of a portion a structure of an explosion-proof weighing sensor according to the present utility model.

In the figure: 1. a housing; 2. a movable plate; 3. a gravity sensor; 4. a support rod; 5. placing a plate; 6. a backing plate; 7. a positioning plate; 8. a buffer seat; 9. a buffer rod; 10. a buffer tank; 11. a buffer spring; 12. a screw; 13. a rotating plate; 14. a bottom plate; 15. a cushion block; 16. a positioning ring; 17. a screw rod; 18. a moving ring; 19. a driven gear; 20. an inner gear ring; 21. a rotating wheel; 22. and a display screen.

Description of the embodiments

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

Examples

Referring to fig. 1-3, an explosion-proof weighing sensor comprises a housing 1, a movable plate 2 is slidably mounted on the inner wall of the housing 1, a gravity sensor 3 is mounted on the top of the movable plate 2, a supporting rod 4 is mounted on the gravity sensor 3, a placing plate 5 is mounted on the top end of the supporting rod 4, two symmetrically arranged base plates 6 are fixedly mounted on the bottom of the placing plate 5, a buffer mechanism is arranged at the bottom of the movable plate 2, a positioning plate 7 is slidably connected on the inner wall of the housing 1, the positioning plate 7 is mutually matched with the buffer mechanism, an adjusting mechanism is arranged in the housing 1 and is in transmission connection with the positioning plate 7, a bottom plate 14 is fixedly mounted on the bottom of the housing 1, four symmetrically arranged base blocks 15 are fixedly arranged on the bottom of the bottom plate 14, a display screen 22 is mounted on one side of the housing 1, and the display screen 22 is connected with the gravity sensor 3.

In this embodiment, buffer gear includes two buffer seat 8 and two buffer rods 9, two buffer seat 8 and fly leaf 2 fixed connection, two buffer rods 9 and locating plate 7 fixed connection, buffer seat 8 and the buffer rod 9 sliding connection who corresponds, buffer tank 10 has been seted up to the bottom of buffer seat 8, fixed mounting has buffer spring 11 on the top inner wall of buffer tank 10, buffer spring 11's bottom and buffer rod 9 fixed connection, buffer tank 10 and buffer spring 11's setting can be convenient for carry out buffer protection to fly leaf 2 and gravity sensor 3.

In this embodiment, adjustment mechanism includes four screw rods 12, four screw rods 12 rotate and install on the inner wall of casing 1, four screw rods 12 transmission are connected, the top of casing 1 rotates and is connected with rotating plate 13, rotating plate 13 and corresponding screw rod 12 fixed connection, fixed cover is equipped with the sprocket on the screw rod 12, the meshing has same chain on four sprockets, pivoted rotating plate 13 drives four screw rods 12 and rotates simultaneously through four intermeshing of sprocket and chain, pivoted screw rod 12 moves through driving locating plate 7 with the threaded connection of locating plate 7, and then can adjust the height of placing plate 5, thereby can adjust the upper limit of protection of gravity sensor 3.

The theory of operation, the during operation, the object is placed on placing the board 5, and act on gravity sensor 3 through bracing piece 4, thereby can weigh the object, simultaneously through fly leaf 2 and buffering seat 8 effort downwards, and buffer through buffer spring 11 and buffer tank 10 to fly leaf 2, when the gravity of object reaches the upper limit, the gravity of object can drive backing plate 6 and casing 1 contact, and then can support placing the board 5, thereby protect gravity sensor 3, when need adjust the upper limit of protection, rotate rotating plate 13, pivoted rotating plate 13 drives four screw rods 12 simultaneously through four intermeshing of sprocket and chain and rotates, pivoted screw rod 12 drives locating plate 7 through the threaded connection with locating plate 7 and removes, and then can adjust the height of placing the board 5, thereby can adjust the upper limit of protection of gravity sensor 3.

Examples

The difference between the second embodiment and the first embodiment is that the positioning ring 16 is fixedly installed on the outer side of the shell 1, the moving ring 18 is slidingly connected on the outer side of the shell 1, four symmetrically arranged rotating wheels 21 are rotationally connected on the bottom of the moving ring 18, the rotating wheels 21 are movably connected with the bottom plate 14, four symmetrically arranged screw rods 17 are rotationally connected on the bottom of the positioning ring 16, the screw rods 17 are in threaded connection with the moving ring 18, driven gears 19 are rotationally connected on the top of the moving ring 18, the driven gears 19 are slidingly connected with the corresponding screw rods 17, an inner gear ring 20 is rotationally connected on the top of the moving ring 18, the inner gear ring 20 is meshed with the four driven gears 19, when the device is required to be moved, the inner gear ring 20 rotates, the rotating screw rods 17 drive the rotating wheels 21 to support the device through the threaded connection with the moving ring 18, and therefore the device can be conveniently moved through the rotating wheels 21.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equally to the technical solution of the present utility model and the inventive concept thereof, within the scope of the present utility model.

Claims

1. The utility model provides an explosion-proof weighing sensor, includes casing (1), its characterized in that, slidable mounting has fly leaf (2) on the inner wall of casing (1), gravity sensor (3) are installed at the top of fly leaf (2), install bracing piece (4) on gravity sensor (3), place board (5) are installed on the top of bracing piece (4), the bottom fixed mounting of placing board (5) has backing plate (6) that two symmetries set up, the bottom of fly leaf (2) is equipped with buffer gear, sliding connection has locating plate (7) on the inner wall of casing (1), locating plate (7) mutually support with buffer gear, be equipped with adjustment mechanism in casing (1), adjustment mechanism is connected with locating plate (7) transmission, the bottom fixed mounting of casing (1) has bottom plate (14), the bottom of bottom plate (14) is fixed with four cushion (15) that the symmetry set up, one side of casing (1) installs display screen (22), display screen (22) are connected with heavy (3).

2. An explosion-proof weighing sensor according to claim 1, characterized in that the buffer mechanism comprises two buffer seats (8) and two buffer rods (9), the two buffer seats (8) are fixedly connected with the movable plate (2), the two buffer rods (9) are fixedly connected with the positioning plate (7), and the buffer seats (8) are slidably connected with the corresponding buffer rods (9).

3. The explosion-proof weighing sensor according to claim 2, wherein a buffer groove (10) is formed in the bottom of the buffer seat (8), a buffer spring (11) is fixedly mounted on the inner wall of the top of the buffer groove (10), and the bottom end of the buffer spring (11) is fixedly connected with the buffer rod (9).

4. An explosion-proof weighing sensor according to claim 1, wherein the adjusting mechanism comprises four screws (12), the four screws (12) are rotatably mounted on the inner wall of the housing (1), the four screws (12) are in transmission connection, a rotating plate (13) is rotatably connected to the top of the housing (1), and the rotating plate (13) is fixedly connected with the corresponding screws (12).

5. An explosion-proof weighing sensor according to claim 4, wherein the screw (12) is fixedly sleeved with chain wheels, and the four chain wheels are meshed with the same chain.