Waterproof speed sensor

Abstract

The utility model discloses a waterproof type speed sensor, belonging to the speed sensor technology field, the sensor comprises a plugging boss, a sealing plugging cap, a threading pipe and a sealing assembly, through the sealing assembly, a through groove is aligned with a limiting protruding plate for plugging, in a downward plugging process, the limiting protruding plate jacks up a sliding plate, and the sliding plate is inserted into the sealing assembly. According to the sealing glue sealing device, the sealing glue in the bag can flow out and enter a second communicating groove and a first communicating groove, so that a connecting wire and a threading hole can be sealed and fixed, and the glue can flow out from a penetrating groove to seal a threading pipe and the penetrating hole; and an inserting block is inserted into an inserting vertical groove, a sealing inserting cap is rotated in the direction of a spiral inclined groove, and the sealing inserting cap and the upper end of an inserting boss can be clamped through the characteristic that the spiral inclined groove inclines downwards.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of speed sensor, concretely relates to a waterproof speed sensor. BACKGROUND

[0002] With the electronic antiskid brake system technology research application matures day by day, at present, most aircrafts are installed with the system, and speed sensor is an important component of the electronic antiskid brake system, provides the sine alternating voltage signal proportional to the frequency and the wheel angular velocity for the control box, is used for detecting the wheel speed of the antiskid brake system, thus it can be seen that whether the speed sensor can adapt to the special environment has important influence on the normal work of the electronic antiskid brake system under the corresponding environment.

[0003] The speed sensor of the common electronic antiskid brake system generally only has simple sealing structure, the sensor is sealed by vulcanized silicone rubber, dustproof ring, metal screw structure, interference fit compression etc., has certain degree of sand dust resistance, moisture resistance and rain resistance, but in the special environment, internal failure caused by insufficient sealing structure still appears, which influences the normal work of the speed sensor.

[0004] In order to solve the above problems, the waterproof vibration speed sensor is disclosed in Chinese utility model patent CN206670788U, which comprises a cylinder, a base arranged at the bottom of the cylinder, an upper cover arranged at the upper part of the cylinder, a sensor body arranged in the cylinder, a waterproof connector fixedly connected with the upper cover, a sealing ring arranged between the waterproof connector and the upper cover, the base and the upper cover are fixed between the cylinder by laser welding, the part in the cylinder except the sensor body is filled with epoxy resin, the shell of the sensor is made of stainless steel, and several parts of the shell are sealed by laser welding technology, the internal space of the sensor is poured with high-quality epoxy resin, the signal cable outlet is sealed by high-quality waterproof connector and glue sealing rubber ring technology, so that the waterproof effect is greatly improved.

[0005] The above-mentioned prior art still has the following defects: the rubber ring connecting the speed sensor between the connecting lines of the speed sensor is prone to aging and cracking, and after the rubber ring ages and cracks, it will not play a waterproof effect, and the connecting line and the rubber ring cannot be completely sealed. SUMMARY

[0006] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0007] In order to solve the problems of the aging and cracking of the rubber ring connecting the connecting lines of the speed sensors, the rubber ring cannot prevent water after aging and cracking, and the connecting lines and the rubber ring cannot be completely sealed, the utility model discloses the following technical scheme.

[0008] A waterproof speed sensor, comprising a connecting line passing through the top of the speed sensor, the upper end of the speed sensor being fixedly connected with a plug-in boss, a sealing plug-in cap being installed on the plug-in boss, a wire tube being installed on the sealing plug-in cap, a plurality of wire holes being formed in the wire tube, the connecting line passing through the inside of the wire holes, a sealing assembly being arranged on the wire tube, the sealing assembly being capable of injecting sealing glue into the contact surfaces between the connecting line, the wire holes, the wire tube and the sealing plug-in cap.

[0009] Preferably, the inner wall of the plug-in boss is provided with plug-in vertical grooves on both sides, the inside bottom of the plug-in vertical grooves is provided with a spiral inclined groove, the inside top of the sealing plug-in cap is provided with a plug-in column, plug-in blocks being fixedly connected to the outer wall of the plug-in column on both sides, the plug-in column being inserted into the inside of the plug-in boss, the plug-in blocks being inserted into the plug-in vertical grooves and rotating the sealing plug-in cap along the direction of the spiral inclined groove.

[0010] Preferably, the upper end of the sealing plug-in cap is provided with glue injection holes on both sides, the glue injection holes being aligned with the plug-in vertical grooves after the sealing plug-in cap is rotatably installed, and the sealing glue is injected into the inside of the plug-in vertical grooves and the spiral inclined groove from the glue injection holes.

[0011] Preferably, the upper end of the plug-in boss is provided with a rubber sealing ring, and the inside top of the sealing plug-in cap is provided with a rubber boss, the rubber boss corresponding to the position of the rubber sealing ring.

[0012] Preferably, the plug-in column is provided with a through hole, the inner wall of the through hole is provided with a plurality of limiting flanges, and the outer wall of the wire tube is provided with a plurality of through grooves.

[0013] Preferably, the sealing assembly comprises a bagged sealing glue, a sliding plate, a cutting blade, a second communication groove and a first communication groove, the bagged sealing glue being embeddedly installed at the center of the wire tube, the second communication groove being arranged between the bagged sealing glue and each wire hole, the first communication groove being connected between the bagged sealing glue and each through groove, the sliding plate being slidably connected in the inside of each first communication groove, the cutting blade being fixedly connected to the end of each sliding plate close to the bagged sealing glue, each cutting blade being located at the bottom of the bagged sealing glue, and the end of the sliding plate close to the outside being inserted into the inside of the through groove.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. By using the sealing assembly, the through groove is aligned with the limiting protrusion and inserted. During the downward insertion process, the limiting protrusion will push the sliding plate upward, causing the cutting blade to cut through the bag of sealant. This allows the sealant inside the bag to flow out and into the interior of the second and first connecting grooves, thereby sealing and fixing the connecting wire and the through hole. The glue can also flow out from the through groove to seal the through tube and the through hole, resulting in a better sealing effect.

[0016] 2. By inserting the plug into the vertical groove and rotating the sealing plug cap along the direction of the spiral inclined groove, the sealing plug cap can be locked between the upper end of the plug boss by the downward inclined characteristic of the spiral inclined groove, so that the sealing plug cap can be easily disassembled and replaced while sealing.

[0017] 3. By using the rubber sealing ring and the plug-in boss, the rubber sealing ring and the rubber boss can fit tightly together when the sealing plug-in cap is rotated, achieving a sealing effect and preventing water from entering the interior of the plug-in boss from between the sealing plug-in cap and the plug-in boss, which could damage the speed sensor.

[0018] 4. The set glue injection hole allows sealant to be injected into the glue injection hole after the sealing plug cap is installed. The sealant will fill the vertical groove and spiral inclined groove of the plug, thereby sealing the sealing plug cap and the plug boss, making the sealing effect better and preventing the sealing plug cap from falling off. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a waterproof speed sensor structure according to the present invention;

[0020] Figure 2 This is a schematic diagram of the insertion boss structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the sealing plug cap structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the conduit and sealing plug cap in this utility model;

[0023] Figure 5 This is a schematic diagram of the sealing component structure in this utility model.

[0024] The correspondence between the labels and component names in the attached figures is as follows:

[0025] 100. Speed ​​sensor; 101. Connecting wire; 102. Rubber sealing ring; 103. Insertion vertical groove; 104. Spiral inclined groove; 105. Insertion boss;

[0026] 200. Sealing plug cap; 201. Plug block; 202. Rubber boss; 203. Through hole; 204. Limiting boss; 205. Injection hole;

[0027] 300. Conduit; 301. Through groove; 302. Wire hole; 303. First connecting groove; 304. Second connecting groove; 305. Bagged sealant; 306. Sliding plate; 307. Cutting blade. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0031] like Figure 1 The diagram shows a preferred embodiment of a waterproof speed sensor according to this utility model. This waterproof speed sensor includes a connecting wire 101 extending from the top of a speed sensor 100. A sealing cap 200 is installed on the top of the speed sensor 100, and a conduit 300 is installed at the center of the sealing cap 200. The connecting wire 101 extends from the conduit 300. In this embodiment, the conduit 300 creates a seal with the connecting wire 101, and the sealing cap 200 seals with the speed sensor 100, thereby preventing water from entering through gaps between the connecting wire 101 and the conduit 300 or between the conduit 300 and the sealing cap 200, thus achieving a waterproof effect.

[0032] like Figure 2 as well as Figure 3As shown, it is the sealing plug cap and plug boss mounting structure schematic diagram in the embodiment, the upper end of the speed sensor 100 is fixedly connected with the plug boss 105, the inner wall of the plug boss 105 is provided with plug vertical slot 103 on both sides, the inner side of the plug vertical slot 103 is provided with a spiral inclined slot 104, the inner side of the top of the sealing plug cap 200 is provided with a plug column, the outer wall of both sides of the plug column is fixedly connected with the plug block 201, the plug column is inserted into the inside of the plug boss 105, the plug block 201 is inserted into the plug vertical slot 103 and rotates the sealing plug cap 200 along the direction of the spiral inclined slot 104, in the embodiment, the plug block 201 is inserted into the plug vertical slot 103 and rotates the sealing plug cap 200 along the direction of the spiral inclined slot 104, the sealing plug cap 200 and the upper end of the plug boss 105 can be clamped by the characteristics of the spiral inclined slot 104, and the sealing plug cap 200 can be replaced conveniently while being sealed.

[0033] As shown in the figure, Figure 2 And Figure 3 As shown, the upper end of the plug boss 105 is provided with a rubber sealing ring 102, the inner side of the top of the sealing plug cap 200 is provided with a rubber boss 202, the position of the rubber boss 202 corresponds to the position of the rubber sealing ring 102, in the embodiment, when the sealing plug cap 200 is rotated, the rubber sealing ring 102 and the rubber boss 202 are tightly fitted to achieve sealing effect, and water is prevented from entering the inside of the plug boss 105 from between the sealing plug cap 200 and the plug boss 105 to cause damage to the speed sensor 100.

[0034] As shown in the figure, Figure 4 As shown, it is the threading pipe and sealing plug cap mounting structure schematic diagram in the embodiment, the plug column is provided with a through hole 203, the inner wall of the through hole 203 is provided with a plurality of limiting convex plates 204, the threading pipe 300 is provided with a plurality of threading holes 302, the connecting line 101 passes through the threading hole 302, the outer wall of the threading pipe 300 is provided with a plurality of through grooves 301, in the embodiment, the threading pipe 300 is inserted into the inside of the through hole 203, the limiting convex plate 204 is inserted into the inside of the through groove 301 to limit the threading pipe 300, so that the threading pipe 300 can be installed and disassembled conveniently, and the threading pipe 300 can be replaced conveniently.

[0035] As shown in the figure, Figure 5As shown, this is a schematic diagram of the sealing assembly structure in this embodiment. A bagged sealant 305 is embedded in the center of the conduit 300. A second connecting groove 304 is provided between the bagged sealant 305 and each conduit hole 302. A first connecting groove 303 connects the bagged sealant 305 and each through groove 301. A sliding plate 306 is slidably connected inside each first connecting groove 303. A cutting blade 307 is fixedly connected to the end of each sliding plate 306 near the end of the bagged sealant 305. Each cutting blade 307 is located at the bottom of the bagged sealant 305. The outer end of the sliding plate 306 is inserted into the interior of the through groove 301. In the example, during installation, the connecting wire 101 is first passed through the wire hole 302, and then the through groove 301 is aligned with the limiting protrusion 204 for insertion. During the downward insertion process, the limiting protrusion 204 will push the sliding plate 306 upward, which will cause the cutting blade 307 to cut through the bagged sealant 305, causing the sealant inside the bagged sealant 305 to flow outward and into the interior of the second connecting groove 304 and the first connecting groove 303. This can seal and fix the connecting wire 101 and the wire hole 302, and the glue can also flow out from the through groove 301 to seal the wire tube 300 and the through hole 203, resulting in a better sealing effect.

[0036] It is worth noting that the aforementioned bagged sealant 305, sliding plate 306, cutting blade 307, second connecting groove 304, and first connecting groove 303 are sealing components in this embodiment. The sealing components include, but are not limited to, bagged sealant 305, sliding plate 306, cutting blade 307, second connecting groove 304, and first connecting groove 303. Any component that can perform glue filling and sealing between the connecting wire 101 and the wire hole 302, and between the wire tube 300 and the sealing plug cap 200, can be applied to this embodiment.

[0037] like Figures 1-3 As shown, the upper end of the sealing plug cap 200 is provided with glue injection holes 205 on both sides. After the sealing plug cap 200 is rotated and installed, the glue injection holes 205 are aligned with the vertical groove 103. The sealant is injected into the vertical groove 103 and the spiral inclined groove 104 from the glue injection holes 205. In this embodiment, the glue injection holes 205 can be used to inject sealant into the glue injection holes 205 after the sealing plug cap 200 is installed. The sealant will fill the vertical groove 103 and the spiral inclined groove 104, thereby sealing the sealing plug cap 200 and the plug boss 105, making the sealing effect better and preventing the sealing plug cap 200 from falling off.

[0038] The above is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the utility model specific implementation is limited to these descriptions. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope determined by the claims submitted by the utility model.

Claims

1. A waterproof speed sensor comprising a connection wire (101) that passes out from the top of the speed sensor (100), characterized in that, The upper end of the speed sensor (100) is fixedly connected with a plug-in boss (105), a sealing plug cap (200) is installed on the plug-in boss (105), a wire penetrating pipe (300) is installed on the sealing plug cap (200), a plurality of wire penetrating holes (302) are arranged on the wire penetrating pipe (300), a connecting wire (101) penetrates out from the inside of the wire penetrating hole (302), a sealing assembly is arranged on the wire penetrating pipe (300), and the sealing assembly can inject sealing glue between the connecting wire (101) and the wire penetrating hole (302) and the contact surface between the wire penetrating pipe (300) and the sealing plug cap (200).

2. The waterproof speed sensor of claim 1, wherein, Plug-in vertical grooves (103) are arranged on both sides of the inner wall of the plug-in boss (105), a helical inclined groove (104) is arranged on the inner side bottom of the plug-in vertical groove (103), a plug-in column is arranged on the inner side top of the sealing plug cap (200), plug-in blocks (201) are fixedly connected to the outer walls on both sides of the plug-in column, the plug-in column is inserted into the inside of the plug-in boss (105), and the plug-in blocks (201) are inserted into the plug-in vertical grooves (103) and rotate the sealing plug cap (200) in the direction of the helical inclined groove (104).

3. The waterproof speed sensor of claim 2, wherein, Glue injection holes (205) are arranged on both sides of the upper end of the sealing plug cap (200), the glue injection holes (205) are aligned with the plug-in vertical grooves (103) after the sealing plug cap (200) is rotatably installed, and sealing glue is injected into the inside of the plug-in vertical grooves (103) and the helical inclined groove (104) from the glue injection holes (205).

4. The waterproof speed sensor of claim 3, wherein, A rubber sealing ring (102) is arranged on the upper end of the plug-in boss (105), and a rubber boss (202) is arranged on the inner side top of the sealing plug cap (200), the rubber boss (202) corresponding to the position of the rubber sealing ring (102).

5. The waterproof speed sensor of claim 4, wherein, A through hole (203) is arranged on the plug-in column, a plurality of limiting lugs (204) are arranged on the inner wall of the through hole (203), and a plurality of through grooves (301) are arranged on the outer wall of the wire penetrating pipe (300).

6. The waterproof speed sensor of claim 5, wherein, The sealing assembly comprises a bagged sealing glue (305), a sliding plate (306), a cutting blade (307), a second communication groove (304), and a first communication groove (303), the bagged sealing glue (305) is embeddedly installed at the center of the wire penetrating pipe (300), the second communication groove (304) is arranged between the bagged sealing glue (305) and each wire penetrating hole (302), the first communication groove (303) is connected between the bagged sealing glue (305) and each through groove (301), the sliding plate (306) is slidably connected in the inside of each first communication groove (303), the cutting blade (307) is fixedly connected to the end of each sliding plate (306) close to the bagged sealing glue (305), each cutting blade (307) is located at the bottom of the bagged sealing glue (305), and the end of the sliding plate (306) close to the outside is inserted into the inside of the through groove (301).

Images