Waterproof device for force transducer

Abstract

The utility model discloses a waterproof device for a force transducer, which comprises a transducer main body, an upper waterproof cover is arranged above the transducer main body, a lower waterproof cover is arranged below the transducer main body, an outer sealing ring is fixedly mounted at the top of the upper waterproof cover, and an inner sealing ring is fixedly mounted at the bottom of the lower waterproof cover. A waterproof pad is fixedly installed at the top of an inner cavity of the upper waterproof cover, a fixing assembly is installed on the outer ring of the bottom of the waterproof pad in a clamped mode, arc-shaped rubber pads are bonded to the two sides of the inner cavity of the upper waterproof cover, and supporting pads are arranged on the outer sides of the arc-shaped rubber pads. According to the utility model, the upper waterproof cover and the lower waterproof cover are additionally arranged outside the force transducer for waterproof protection, the arc-shaped rubber pad in the upper waterproof cover is clamped outside the force transducer for improving the firmness after installation, and the outer sealing ring and the inner sealing ring can perform double sealing protection on the joint of the upper end. Therefore, the sealing protection waterproof effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of force measuring sensors, in particular to a waterproof device for a force measuring sensor. Background Technique

[0002] A force measuring sensor is a basic mechanical sensor widely used in the fields of industrial production, military equipment, aerospace, navigation, etc. Most of its measurement principles are based on the technology of resistance strain gauges. The strain caused by the elastic body of the resistance strain gauge is converted into the resistance change of the resistance strain gauge, and then the resistance change is converted into a voltage signal through a Wheatstone bridge.

[0003] For example, the Chinese utility model provides a "waterproof device for a force measuring sensor and a force measuring sensor" with the patent number: CN207600650 U, which includes a waterproof housing and a head sealing structure. The waterproof housing includes a cylinder body that is adaptively sleeved on the sensor body of the force measuring sensor and a bottom cover that is hermetically fixed at the bottom end of the cylinder body and abuts against the bottom end of the sensor body. An opening is formed in the middle of the top wall of the cylinder body, and a wire outlet hole for the cable of the force measuring sensor to extend out is formed in the side wall of the cylinder body. The head sealing structure includes a sealing block and a first sealing ring. The sealing block includes a base and a pressing part that extends upward from the middle of the base. The sealing block is arranged on the upper part of the cylinder body and is abutted upward by the head of the force measuring sensor. The pressing part is adapted to the opening and extends upward from the opening. The first sealing ring is sleeved on the pressing part and is squeezed between the base and the top wall of the cylinder body. In addition, the utility model also discloses a force measuring sensor assembly.

[0004] Although the above document solves the problem of protecting the force measuring sensor, there is no additional protection structure on its exterior. When it encounters water on the surface during use, it will also affect the internal components, thereby reducing the service life of the force measuring sensor. Content of the Utility Model

[0005] The purpose of the utility model is to provide a waterproof device for a force measuring sensor, which has the advantage of being able to provide waterproof protection for the exterior.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A waterproof device for a force measuring sensor, including a sensor body, an upper waterproof cover is arranged above the sensor body, a lower waterproof cover is arranged below the sensor body, an outer sealing ring is fixedly installed on the top of the upper waterproof cover, a waterproof pad is fixedly installed on the top of the inner cavity of the upper waterproof cover, a fixing component is clamped and installed on the outer ring of the bottom of the waterproof pad, arc-shaped rubber pads are bonded to both sides of the inner cavity of the upper waterproof cover, a support pad is arranged on the outer side of the arc-shaped rubber pad, and the outer side of the support pad is connected to the inner wall of the upper waterproof cover.

[0007] As a preferred solution, an arc-shaped clamping block is fixedly installed on the outer ring of the top of the lower waterproof cover, and an arc-shaped clamping groove for cooperating with the arc-shaped clamping block is opened at the bottom of the upper waterproof cover.

[0008] As a preferred solution, an inner sealing ring is bonded to the center of the inner cavity top of the upper waterproof cover, and the inner sealing ring is used in cooperation with an external outer sealing ring.

[0009] As a preferred solution, installation grooves are opened on the sides of both the upper waterproof cover and the lower waterproof cover, and the width of the installation groove is the same as the width of the joint on the surface of the sensor body.

[0010] As a preferred solution, waterproof rings are bonded to both sides of the inner cavity of the installation groove, and the waterproof rings are arranged vertically.

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

[0012] 1. The present utility model can carry out waterproof protection by adding an upper waterproof cover and a lower waterproof cover outside the force measuring sensor. In addition, the arc-shaped rubber pad inside the upper waterproof cover is stuck outside the force measuring sensor to increase the firmness after installation. In addition, the outer sealing ring and the inner sealing ring can provide double-sealing protection for the upper connection, so as to achieve the effect of sealing protection and waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0014] Figure 2 is a partial structure sectional view of the present utility model;

[0015] Figure 3 is a partial sectional view of the present utility model from another perspective.

[0016] In the figure: 1, sensor body; 2, upper waterproof cover; 3, lower waterproof cover; 4, arc-shaped clamping block; 5, arc-shaped clamping groove; 6, outer sealing ring; 7, inner sealing ring; 8, waterproof pad; 9, fixing component; 10, arc-shaped rubber pad; 11, support pad; 12, installation groove; 13, waterproof ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] 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 embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3, The utility model: A waterproof device for a force measuring sensor, including a sensor body 1, an upper waterproof cover 2 is arranged above the sensor body 1, a lower waterproof cover 3 is arranged below the sensor body 1, an outer sealing ring 6 is fixedly installed at the top of the upper waterproof cover 2, a waterproof pad 8 is fixedly installed at the top of the inner cavity of the upper waterproof cover 2, a fixing component 9 is clamped and installed at the outer ring of the bottom of the waterproof pad 8, arc-shaped rubber pads 10 are bonded to both sides of the inner cavity of the upper waterproof cover 2, a support pad 11 is arranged outside the arc-shaped rubber pad 10, and the outside of the support pad 11 is connected to the inner wall of the upper waterproof cover 2.

[0019] Through the above technical solution, waterproof protection can be carried out by adding the upper waterproof cover 2 and the lower waterproof cover 3 outside the force measuring sensor. In addition, the arc-shaped rubber pad 10 inside the upper waterproof cover 2 is stuck outside the force measuring sensor, which can increase the firmness after installation. In addition, the outer sealing ring 6 and the inner sealing ring 7 can provide double sealing protection for the connection at the upper end, so as to achieve the effect of sealing protection and waterproofing.

[0020] An arc-shaped clamping block 4 is fixedly installed at the outer ring of the top of the lower waterproof cover 3, and an arc-shaped clamping groove 5 matched with the arc-shaped clamping block 4 is opened at the bottom of the upper waterproof cover 2.

[0021] Through the above technical solution, the arc-shaped clamping groove 5 can accommodate the arc-shaped clamping block 4 at the bottom, and the lower waterproof cover 3 can be installed at the bottom of the upper waterproof cover 2, so as to provide waterproof protection for the outside of the force measuring sensor.

[0022] An inner sealing ring 7 is bonded at the center of the top of the inner cavity of the upper waterproof cover 2, and the inner sealing ring 7 is used in cooperation with the external outer sealing ring 6.

[0023] Through the above technical solution, the inner sealing ring 7 can increase the sealing performance of the upper waterproof cover 2 when it is stuck outside the force measuring sensor, and achieve a double-sealing effect by cooperating with the external outer sealing ring 6.

[0024] Installation grooves 12 are opened on the sides of both the upper waterproof cover 2 and the lower waterproof cover 3, and the width of the installation groove 12 is the same as the width of the joint on the surface of the sensor body 1.

[0025] Through the above technical solution, the installation grooves 12 facilitate the installation of the upper waterproof cover 2 and the lower waterproof cover 3.

[0026] Sealing rings 13 are bonded to both sides of the inner cavity of the installation groove 12, and the sealing rings 13 are arranged vertically.

[0027] Through the above technical solution, the sealing rings 13 can increase the sealing performance after the upper waterproof cover 2 is clamped, and avoid water leakage caused by too large a gap.

[0028] The working principle of the present utility model is as follows: The waterproof pad 8 is fixed at the top inside the upper waterproof cover 2 by means of the fixing component 9. Subsequently, the installation groove 12 on the side of the upper waterproof cover 2 is aligned with the connector on the side of the force sensor and snapped into it. At this time, the internal arc-shaped rubber pad 10 fits against the outside of the sensor body 1, and the support pad 11 can extrude and support the outside of the arc-shaped rubber pad 10. Finally, the arc-shaped clamping block 4 at the top of the lower waterproof cover 3 is aligned with the arc-shaped clamping groove 5 and snapped into it, completing the assembly between the upper waterproof cover 2 and the lower waterproof cover 3, so as to provide waterproof protection for the outside of the force sensor.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A waterproof device for a force sensor, comprising a sensor body (1), characterized in that: An upper waterproof cover (2) is provided above the sensor body (1), a lower waterproof cover (3) is provided below the sensor body (1), an outer sealing ring (6) is fixedly installed at the top of the upper waterproof cover (2), a waterproof pad (8) is fixedly installed at the top of the inner cavity of the upper waterproof cover (2), a fixing component (9) is snap-fitted and installed on the outer ring at the bottom of the waterproof pad (8), arc-shaped rubber pads (10) are bonded to both sides of the inner cavity of the upper waterproof cover (2), a support pad (11) is arranged on the outer side of the arc-shaped rubber pad (10), and the outer side of the support pad (11) is connected to the inner wall of the upper waterproof cover (2).

2. The waterproof device for a force sensor according to claim 1, characterized in that: An arc-shaped clamping block (4) is fixedly installed on the outer ring at the top of the lower waterproof cover (3), and an arc-shaped clamping groove (5) matched with the arc-shaped clamping block (4) is opened at the bottom of the upper waterproof cover (2).

3. The waterproof device for a force sensor according to claim 1, characterized in that: An inner sealing ring (7) is bonded at the center of the top of the inner cavity of the upper waterproof cover (2), and the inner sealing ring (7) is used in cooperation with the external outer sealing ring (6).

4. The waterproof device for a force measuring sensor according to claim 1, characterized in that: Installation grooves (12) are opened on the side surface of the upper waterproof cover (2) and the side surface of the lower waterproof cover (3), and the width of the installation groove (12) is the same as the width of the joint on the surface of the sensor body (1).

5. The waterproof device for a force sensor according to claim 4, characterized in that: Waterproof rings (13) are bonded to both sides of the inner cavity of the installation groove (12), and the waterproof rings (13) are arranged vertically.

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