Waterproof assembly

Abstract

The utility model relates to the technical field of plastic shells, and discloses a waterproof assembly which comprises a shell and a shell cover, waterproof structures are arranged on the left side and the right side of the shell, output wires are arranged on the inner sides of the waterproof structures, each waterproof structure comprises a fixing sleeve, a clamping sleeve, a conical sleeve and a buckling sleeve, the fixing sleeves and the shell are fixedly installed, and the buckling sleeves and the fixing sleeves are connected through threads. And connecting rods are symmetrically arranged on the front side and the rear side of the clamping sleeve, a gear is arranged above the output wire, first racks are engaged with the two sides of the gear, a second rack is arranged between the adjacent first racks, and the first racks and the second racks are both engaged with the gear. The waterproof structure is arranged at the joint of the output wire and the shell, so that the connection sealing performance of the output wire and the shell is guaranteed, the waterproof effect of parts is improved, the anti-falling effect of the output wire is improved, a circuit can stably output electric signals, and the use stability of the parts is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of plastic shell technology, specifically a waterproof component. Background Technology

[0002] Plastic casings offer excellent waterproof performance and are generally used primarily for protecting objects. They can be made into boxes for protecting objects such as electrical components, including the housings of circuit breakers and contactors.

[0003] Existing plastic-cased enclosures are not adequately waterproof for the internal circuitry. For example, water can easily seep into the gaps between wires after they are connected, affecting the functionality of internal components and increasing operating costs. To address this, we propose a waterproof component. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof component to address the shortcomings of existing plastic-cased boxes, which do not provide adequate waterproofing for internal circuitry. For example, after connecting wires to the outside, water can easily seep into the gaps between the wires, affecting the usability of internal components and increasing operating costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof component, comprising a housing and a cover, wherein the housing and the cover are connected by bolts, the cover has a protrusion on one side corresponding to the housing, the housing has waterproof structures on the left and right sides, and an output wire is provided inside the waterproof structure. The waterproof structure includes a fixing sleeve, a snap-fit ​​sleeve, a conical sleeve, and a snap-fit ​​sleeve. The fixing sleeve and the housing are fixedly installed, the snap-fit ​​sleeve, the conical sleeve, and the snap-fit ​​sleeve are all located inside the fixing sleeve, the snap-fit ​​sleeve is located on the output wire, the snap-fit ​​sleeve and the fixing sleeve are connected by threads, the outer side of the snap-fit ​​sleeve is inserted into an adjacent conical sleeve, the snap-fit ​​sleeve has symmetrical connecting rods on the front and rear sides, the fixing sleeve has a guide groove for the movable connection of the connecting rods, a gear is provided above the output wire, the gear is rotatably connected to the housing, a rack is meshed on both sides of the gear, a rack is provided between adjacent racks, and both racks mesh with the gear.

[0006] Preferably, a pressure plate is fixedly installed at the upper end of an adjacent rack, a guide rod is provided below the pressure plate, and a return spring is movably sleeved on the guide rod.

[0007] Preferably, the reset spring is disposed between the pressure plate and the protrusion.

[0008] Preferably, rack one and rack two are perpendicular to each other, and the output wire is disposed between adjacent rack one.

[0009] Preferably, a sealing ring is provided between the housing and the cover, and a hollow ring is provided above the sealing ring.

[0010] Preferably, the sealing ring is embedded in the upper end face of the housing, and the sealing ring is in movable contact with the housing cover.

[0011] Preferably, the outer side of the snap-fit ​​sleeve is provided with an outward U-shaped groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This waterproof component features a waterproof structure at the connection between the output wire and the housing. The connection between the cover and the housing allows the protrusion to exert downward pressure on the pressure plate, which in turn drives the rack to move downwards. Through the meshing of the rack and gear, adjacent racks move inwards simultaneously, causing the snap-fit ​​sleeve to exert a radial squeezing force on the conical sleeve from the outside inwards. This increases the precision of the snap-fit ​​sleeve and the fixing sleeve's fit, ensuring the sealing of the connection between the output wire and the housing and improving the component's waterproof effect. Simultaneously, the deformation and squeezing of the flexible rubber conical sleeve enhances the anti-detachment effect of the output wire, ensuring stable electrical signal output and guaranteeing the component's operational stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the shell and cover of this utility model in their separated state;

[0016] Figure 3 This is a schematic diagram of the main cross-section of the present invention;

[0017] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram at point M;

[0018] Figure 5 This is a schematic diagram of the cross-section of the sealing ring of this utility model.

[0019] In the diagram: 1. Housing; 2. Housing cover; 20. Pressure plate; 201. Guide rod; 202. Return spring; 21. Protrusion; 3. Output wire; 4. Waterproof structure; 41. Fixing sleeve; 42. Snap-fit ​​sleeve; 43. Guide groove; 44. Connecting rod; 45. Conical sleeve; 46. Snap-fit ​​sleeve; 47. Rack one; 48. Gear; 49. Rack two; 5. Sealing ring; 51. Hollow ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figures 1-5 This utility model provides a technical solution: a waterproof component, mainly addressing the problem that existing boxes made of plastic shells do not provide adequate waterproofing for internal wiring. For example, after connecting wires to the outside, water can easily enter through the gaps in the wire connections, affecting the use of internal components and increasing operating costs. The specific solution includes a housing 1 and a cover 2, both made of plastic. The housing 1 and cover 2 are connected by bolts. Figure 2 As shown, a protrusion for connecting the cover 2 is provided on the inner side of the housing 1, thus eliminating the need for through screw holes and ensuring a tight seal. A protrusion 21 is provided on the side of the cover 2 corresponding to the housing 1.

[0022] Please see Figure 2 , Figure 3 and Figure 4 The housing 1 has waterproof structures 4 on both sides, and output wires 3 are located inside the waterproof structures 4. The waterproof structures 4 can increase the contact sealing between the output wires 3 and the housing 1.

[0023] Specifically, the waterproof structure 4 includes a fixed sleeve 41, a snap-fit ​​sleeve 42, a conical sleeve 45, and a snap-fit ​​sleeve 46. The fixed sleeve 41 is fixedly installed on the housing 1. The snap-fit ​​sleeve 42 has an outward U-shaped groove on its outer side. The snap-fit ​​sleeve 42, the conical sleeve 45, and the snap-fit ​​sleeve 46 are all located inside the fixed sleeve 41. The conical sleeve 45 is made of flexible rubber. The snap-fit ​​sleeve 46 is located on the output wire 3. The snap-fit ​​sleeve 46 and the fixed sleeve 41 are connected by threads. The outer side of the snap-fit ​​sleeve 46 is inserted into the adjacent conical sleeve 45. The snap-fit ​​sleeve 42 has symmetrical connecting rods 44 on its front and rear sides. The fixed sleeve 41 has a guide groove 43 for the movable connection of the connecting rods 44. A gear 48 is located above the output wire 3. The gear 48 is rotatably connected to the housing 1. A rack 47 meshes on both sides of the gear 48. A rack 49 is located between adjacent racks 47. The racks 47 and rack 49 are perpendicular to each other. The output wire 3 is located between adjacent racks 47. Both rack 47 and rack 49 mesh with gear 48. A pressure plate 20 is fixedly installed on the upper end of adjacent rack 47, and a guide rod 201 is provided below the pressure plate 20. A return spring 202 is movably sleeved on the guide rod 201. The return spring 202 is located between the pressure plate 20 and the protrusion 21. When the cover 2 is fixed to the housing 1 with bolts, the protrusion 21 on the cover 2 provides downward pressure to the pressure plate 20, which in turn drives the rack 47 to move downward. Through the meshing of the rack 47 and the gear 48, the gear 48 can rotate counterclockwise. At the same time, through the meshing of the gear 48 and the rack 49, the adjacent racks 49 can move inward simultaneously. Through the connecting rod 44, the snap sleeve 42 provides radial extrusion force from the outside to the inside to the conical sleeve 45, which increases the fitting precision of the snap sleeve 42 and the fixing sleeve 41. At the same time, the deformation and extrusion of the flexible rubber conical sleeve 45 can improve the anti-dislodgement effect of the output wire 3, so that the circuit can output electrical signals stably and ensure the stability of the component.

[0024] Please see Figure 2 and Figure 5 In this embodiment, a sealing ring 5 is provided between the housing 1 and the cover 2, and a hollow ring 51 is provided above the sealing ring 5. The sealing ring 5 is embedded in the upper end face of the housing 1, and the sealing ring 5 is in movable contact with the cover 2. During the process of fixing the cover 2 to the housing 1, as the bolts are continuously screwed in, the distance between the cover 2 and the housing 1 decreases. The cover 2 can compress the hollow ring 51, and through its own elastic force, it can effectively provide a sealing connection between the housing 1 and the cover 2.

[0025] During installation, the protrusion 21 on the cover 2 provides downward pressure to the pressure plate 20, which in turn drives the rack 47 to move downward. Through the meshing of the rack 47 and the gear 48, the gear 48 rotates counterclockwise. At the same time, through the meshing of the gear 48 and the rack 49, adjacent racks 49 move inward simultaneously. Through the connecting rod 44, the snap-fit ​​sleeve 42 provides radial compression force from the outside to the inside to the conical sleeve 45, improving the sealing of the connection between the output wire 3 and the housing 1. After separating the housing 1 and the cover 2, the rack 49 moves from the inside to the outside through the elastic reset action of the return spring 202, allowing the snap-fit ​​sleeve 42 to disengage from the compression of the conical sleeve 45. In this state, it is convenient to insert the wire.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof component, comprising a housing (1) and a cover (2), characterized in that: The housing (1) and the cover (2) are connected by bolts. The cover (2) has a protrusion (21) on one side corresponding to the housing (1). The housing (1) has waterproof structures (4) on both sides. The waterproof structure (4) has an output wire (3) inside. The waterproof structure (4) includes a fixing sleeve (41), a snap-fit ​​sleeve (42), a conical sleeve (45), and a snap-fit ​​sleeve (46). The fixing sleeve (41) is fixedly installed on the housing (1). The snap-fit ​​sleeve (42), the conical sleeve (45), and the snap-fit ​​sleeve (46) are all located inside the fixing sleeve (41). The snap-fit ​​sleeve (46) is located on the output wire (3). The sleeve (46) and the fixed sleeve (41) are connected by threads. The outer side of the snap sleeve (46) is inserted into the adjacent conical sleeve (45). The snap sleeve (42) is symmetrically provided with connecting rods (44) on the front and back sides. The fixed sleeve (41) is provided with a guide groove (43) for the movable connection of the connecting rod (44). A gear (48) is provided above the output wire (3). The gear (48) is rotatably connected to the housing (1). A rack (47) meshes on both sides of the gear (48). A rack (49) is provided between adjacent racks (47). Both racks (47) and rack (49) mesh with the gear (48).

2. A waterproof component according to claim 1, characterized in that: A pressure plate (20) is fixedly installed on the upper end of the adjacent rack (47), and a guide rod (201) is provided below the pressure plate (20). A return spring (202) is movably sleeved on the guide rod (201).

3. A waterproof component according to claim 2, characterized in that: The reset spring (202) is located between the pressure plate (20) and the protrusion (21).

4. A waterproof component according to claim 1, characterized in that: The first rack (47) and the second rack (49) are perpendicular to each other, and the output wire (3) is located between adjacent first racks (47).

5. A waterproof component according to claim 1, characterized in that: A sealing ring (5) is provided between the housing (1) and the cover (2), and a hollow ring (51) is provided above the sealing ring (5).

6. A waterproof component according to claim 5, characterized in that: The sealing ring (5) is embedded in the upper end face of the housing (1), and the sealing ring (5) is in contact with the cover (2).

7. A waterproof component according to claim 1, characterized in that: The snap-fit ​​sleeve (42) has an outward U-shaped groove on its outer side.

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