CN211457737U - Wire passing device and electric control box - Google Patents

Abstract

The application relates to the field of sealing parts and discloses a wire passing device and an electric control box. The wire passing device is provided with a sealing structure to connect the flexible sheets so as to completely seal the inner hole of the fixing ring. Therefore, before threading, the threading device arranged in the threading hole can completely seal the threading hole, prevent the snake, the insect, the mouse and the ant or other sundries from entering the shell of the equipment, and ensure the normal installation and use in the later stage of the equipment. When the installation needs the threading, through tearing seal structure for can open after a plurality of flexible pieces warp the hole of retainer plate, thereby pass the hole of retainer plate with the line this moment and accomplish the threading. The electric control box provided by the embodiment of the application is provided with the wire passing device, so that the wire passing device can better seal the wire passing hole before threading, sundries are prevented from entering the electric control box, and the subsequent installation and use of the electric control box are guaranteed.

Description

Wire passing device and electric control box

Technical Field

The application relates to the field of sealing parts, in particular to a wire passing device and an electric control box.

Background

At present, the shell of some equipment is often provided with a wire passing hole through which a power supply wire passes, and in order to ensure the tightness and the wire passing requirement, the wire passing device is assembled at the position of the wire passing hole. Taking the wire passing rubber ring as an example, the wire harness passes through the wire passing rubber ring to prevent the edge of the wire passing hole of the shell from cutting. However, when the existing wire passing device is not threaded, the existing wire passing device is provided with a hole, the sealing performance is poor, so that sundries can easily enter the shell of the equipment from the wire passing device, and the later normal installation and use of the equipment are affected.

SUMMERY OF THE UTILITY MODEL

What this application will improve is the current wire passing device before threading the cable, the not good problem of leakproofness.

In order to improve the above problem, in a first aspect, the present application provides a thread passing device, a fixing ring and a plurality of flexible sheets connected to the fixing ring, wherein the plurality of flexible sheets are arranged along a circumferential direction at an inner circumferential side of the fixing ring, the plurality of flexible sheets are connected with each other through a tearable sealing structure, and the sealing structure and the plurality of flexible sheets jointly seal an inner hole of the fixing ring. In the embodiment of the application, the sealing structure is arranged to connect the flexible sheets so as to completely seal the inner hole of the fixing ring. Therefore, before threading, the threading device arranged in the threading hole can completely seal the threading hole, prevent the snake, the insect, the mouse and the ant or other sundries from entering the shell of the equipment, and ensure the normal installation and use in the later stage of the equipment. When the installation needs the threading, through tearing seal structure for can open after a plurality of flexible pieces warp the hole of retainer plate, thereby pass the hole of retainer plate with the line this moment and accomplish the threading.

In an alternative embodiment, each of the flexible sheets has a fan shape, and the arc-shaped edge of the flexible sheet is connected to the inner circumferential side of the fixed ring. The flexible sheet is arranged in a fan shape, so that after the sealing structure is torn, one end of the central angle can be better deformed and lifted, and an inner hole of the fixing ring is opened.

In an alternative embodiment, the wire passing device comprises four flexible sheets, each flexible sheet is a right-angle fan, the right-angle sides of the four flexible sheets together form a cross-shaped gap, and the cross-shaped gap is sealed by the sealing structure. The flexible pieces are all arranged in a right-angle fan shape, so that the wiring harness is located in the middle of the fixing ring after threading as much as possible, the pretightening force of each flexible piece on the wiring harness is balanced, and the sealing effect is good.

In an alternative embodiment, the thickness of the sealing structure is smaller than the thickness of the flexible sheet in the axial direction of the retainer ring. The thickness of the sealing structure is smaller than that of the flexible sheet, so that tearing can be better realized. Even if the strength of the sealing structure is the same as that of the flexible sheet, the thickness of the sealing structure is smaller, so that the flexible sheet and the sealing structure tend to crack from the sealing structure when stressed, and the flexible sheet is effectively prevented from being damaged.

In an optional embodiment, the sealing structure comprises a plurality of sealing strips, the number of the sealing strips is the same as that of the flexible sheets, a gap between two adjacent flexible sheets is sealed by the sealing strips, one end of each sealing strip is connected to the inner peripheral side of the fixing ring, the other ends of the sealing strips meet at the center of the fixing ring, each sealing strip comprises a first section and a second section, and the first section is closer to the center of the fixing ring than the second section;

the thickness of the first section is smaller than that of the second section in the axial direction of the retainer ring.

Through the thickness that sets the thickness with first section to be less than the thickness of second section for whole seal structure is thinner in the position that is close to the retainer plate center, and the position that is close to retainer plate internal periphery side is thicker, consequently when seal structure is torn, can be at first from central point fracture, and the circumference angle department of flexible piece takes lead to the free end that becomes the flexible piece like this, makes things convenient for the flexible piece to open, thereby opens the hole of retainer plate. This also better ensures that the wiring harness passing through the wiring device is close to the center of the retainer ring.

In an alternative embodiment, the second section comprises a first section and two second sections extending along the length of the sealing strip, the two second sections being connected to respective sides of the first section and to respective ones of the two flexible sheets;

the thickness of the first subsection is smaller than that of the second subsection in the axial direction of the fixed ring.

It can be seen that the first section is closer to the middle of the gap between two adjacent flexible sheets than the second section, and the first section is of a smaller thickness than the second section, so that the second section of the sealing strip will crack from the first section when torn, i.e. along the middle of the second section. This can avoid the breach irregularly extending to lead to the fracture to the flexible piece, destroy flexible piece structure.

In an alternative embodiment, the end of the first section, which is far away from the center of the fixing ring, is provided with a tip portion protruding in the length direction of the sealing strip, and the tip of the tip portion is connected to the middle position of the second section in the width direction. The thickness of first section is less than the thickness of second section, and after having set up sharp portion, when the sealing strip was torn, no matter whether the position of splitting at first section is at first section width direction's intermediate position, when splitting to second section, the breach all can be guided to sharp portion, gets into the second section by the pointed end of sharp portion again, guarantees that the position of splitting of second section is from the centre of width direction and begins. Therefore, the tip has a guide effect on the cracking direction of the sealing structure, and the risk that the flexible sheet is accidentally torn is avoided.

In an alternative embodiment, the retaining ring is provided with a snap groove extending around its outer circumference. Through the arrangement of the clamping groove, the inner edge of the wire passing hole of the equipment can be clamped into the clamping groove, and therefore the installation of the wire passing device is achieved. This structural stability is better.

In an alternative embodiment, the fixing ring has flexibility, and the fixing ring is provided with a mounting groove on at least one side in an axial direction thereof. In the process of installing the wire passing device into the wire passing hole of the equipment, the flexible fixing ring is extruded to deform the flexible fixing ring so as to be plugged into the wire passing hole. At least one side of retainer plate sets up the mounting groove and can make the user carry out extrusion deformation with the retainer plate more easily for the installation labour saving and time saving of wire passing device.

In an alternative embodiment, the wire passing device is made of rubber and is integrally formed. The wire passing device is made of rubber materials and is integrally formed, so that the whole sealing performance and the whole stability of the wire passing device are better.

In a second aspect, the application provides an electronic control box, a thread passing hole is formed in the electronic control box, the thread passing device provided by the first aspect is arranged at the thread passing hole, and the outer peripheral side of a fixing ring of the thread passing device is connected to the inner side of the thread passing hole. The electric control box provided by the embodiment of the application is provided with the wire passing device, so that the wire passing device can better seal the wire passing hole before threading, sundries are prevented from entering the electric control box, and the subsequent installation and use of the electric control box are guaranteed.

Drawings

Fig. 1 is a first perspective view of a wire passing device according to an embodiment of the present application;

FIG. 2 is a schematic view of detail II of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 4 is a second perspective view of a cable passing device according to an embodiment of the present application;

fig. 5 is a schematic diagram of an electrical control box according to an embodiment of the present application.

Description of reference numerals: 100-a line passing device; 110-a retaining ring; 112-card slot; 114-a mounting slot; 120-a flexible sheet; 130-a sealing structure; 131-a sealing strip; 132-first segment; 133-tip; 134-second stage; 135-first subsection; 136-a second subsection; 200-an electronic control box.

Detailed Description

A cable-passing hole is often provided in the housing of the apparatus for passing a cable therethrough. When the wire passing hole is formed in a hard plate body such as a metal plate, the inner edge of the wire passing hole may cut the cable, so that the cable is damaged, and the electricity is leaked. In the prior art, a cable is protected by installing a wire passing device with pores and soft material hardness in a wire passing hole. The line hole department of crossing of equipment casing becomes the passageway that snake worm rat ant or other debris got into easily, and even if current line device of crossing can seal the line hole jointly with the cable to a certain extent after the threading, but before the threading, the hole of crossing line device can't be sealed, leads to debris to follow the hole entering of crossing line device easily, influences the follow-up installation of equipment and uses.

In order to improve the problem that the threading hole cannot be sealed by the threading device in the prior art, the embodiment of the application provides the threading device which can better seal the threading hole before threading. In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below.

Fig. 1 is a schematic view of a first perspective view of a wire passing device 100 according to an embodiment of the present application. As shown in fig. 1, the wire passing device 100 includes a fixed ring 110 and a plurality of flexible pieces 120 connected to the fixed ring 110, the plurality of flexible pieces 120 are arranged in a circumferential direction on an inner circumferential side of the fixed ring 110, the plurality of flexible pieces 120 are connected by a tearable seal structure 130, and the seal structure 130 and the plurality of flexible pieces 120 jointly seal an inner hole of the fixed ring 110. By arranging the tearable sealing structure 130, the sealing structure 130 and the flexible sheet 120 are utilized to completely seal the inner hole of the fixing ring 110, so that the wire passing hole of the equipment can be well sealed by the wire passing device 100 before threading. When threading, the sealing structure 130 is torn, so that the flexible sheet 120 can be lifted, and the fixing ring 110 can be used for the cable to pass through.

In the embodiment, the wire guiding device 100 is made of rubber and is integrally formed. Therefore, the overall tightness and stability of the wire passing device 100 are better. The flexible sheet 120 and the fixed ring 110 have good elasticity due to the adoption of rubber materials, so that the fixed ring 110 and the wire passing hole have certain pretightening force, and the installation is more stable; the flexible sheet 120 can also be draped over the cable after threading, also with a degree of sealing effect. Of course, in alternative embodiments, the fixing ring 110 and the flexible sheet 120 may not be integrally formed, and the fixing ring 110 may also be rigid and fixed to the wire passing hole by clamping, welding, or the like. Of course, in other embodiments, the sealing structure 130 may be made of a non-flexible material, such as a relatively brittle material, so that the sealing device is more easily torn than the flexible sheet 120, in which case the connection between the sealing structure 130 and the flexible sheet 120 may be made in other ways, such as by bonding.

Further, each of the flexible sheets 120 of the present embodiment is fan-shaped, and the arc-shaped edge of the flexible sheet 120 is connected to the inner circumferential side of the fixing ring 110. The flexible sheet 120 is provided in a fan shape, so that after the sealing structure 130 is torn, one end of the central angle can be deformed to be lifted, thereby opening the inner hole of the fixing ring 110.

As shown in fig. 1, in the present embodiment, the wire passing device 100 includes four flexible sheets 120, and each of the flexible sheets 120 is a right-angle fan shape and has the same size and structure. The right-angled sides of the four flexible sheets 120 collectively form a cruciform gap, which is sealed by the sealing structure 130. Through setting up each flexible piece 120 to the right angle fan-shaped that the shape size is the same, can be so that the pencil is in the intermediate position of retainer plate 110 as far as possible after the threading, each flexible piece 120 is comparatively balanced to the pretightning force of pencil, and is sealed effectual. In other embodiments of the present application, the number of flexible sheets 120 can be adjusted as desired, such as three sheets, or five or more sheets.

In the present embodiment, the thickness of the sealing structure 130 is smaller than the thickness of the flexible sheet 120 in the axial direction of the fixing ring 110. The thickness of the sealing structure 130 is smaller than the thickness of the flexible sheet 120, enabling better tearing. Even though the sealing structure 130 and the flexible sheet 120 are integrally formed by using the same material as in the present embodiment, the material strength of the two is the same. However, because the thickness of the sealing structure 130 is small, the flexible sheet 120 and the sealing structure 130 tend to be split from the sealing structure 130 when the force is applied, thereby effectively preventing the flexible sheet 120 from being damaged.

Fig. 2 is a schematic view of section II in fig. 1. Referring to fig. 1 and 2, the sealing structure 130 of the present embodiment includes a plurality of sealing strips 131, the number of the sealing strips 131 is equal to the number of the flexible sheets 120, and a gap between two adjacent flexible sheets 120 is sealed by the sealing strips 131. As shown in fig. 1, the sealing structure 130 of the present application includes four sealing strips 131, and the four sealing strips 131 are respectively located in four gaps formed by the four flexible sheets 120. One end of each of the sealing strips 131 is connected to the inner circumferential side of the stationary ring 110, and the other ends meet at the center of the stationary ring 110. Each seal 131 includes a first section 132 and a second section 134, the first section 132 being closer to the center of the retainer ring 110 than the second section 134. The thickness of the first section 132 is smaller than that of the second section 134 in the axial direction of the retainer ring 110.

By setting the thickness of the first section 132 to be smaller than that of the second section 134, the entire sealing structure 130 is made thinner at a position near the center of the fixed ring 110 and thicker at a position near the inner peripheral side of the fixed ring 110, and therefore, when the sealing structure 130 is torn, the sealing structure will be firstly cracked from the center, so that the peripheral corners of the flexible sheets 120 become the free ends of the flexible sheets 120 first, which facilitates the opening of the flexible sheets 120, thereby opening the inner hole of the fixed ring 110. This also better ensures that the wiring harness passing through the wiring device 100 is close to the center of the fixing ring 110.

Further, the second segment 134 includes a first branch 135 and two second branches 136 extending along the length direction of the sealing strip 131, and the two second branches 136 are respectively connected to both sides of the first branch 135 and are respectively connected to the two flexible sheets 120. The thickness of the first subsection 135 is smaller than the thickness of the second subsection 136 in the axial direction of the stationary ring 110. It can be seen that the first subsection 135 is closer to the middle of the gap between two adjacent flexible sheets 120 than the second subsection 136, and the thickness of the first subsection 135 is smaller than the second subsection 136, so that the second section 134 of the sealing strip 131 will crack from the first subsection 135 when torn, i.e. along the middle of the second section 134. This prevents the slits from extending irregularly and causing the slits to open to the flexible sheet 120, which may damage the structure of the flexible sheet 120.

As shown in fig. 2, an end of the first section 132, which is away from the center of the fixing ring 110, is provided with a tip 133 protruding in the length direction of the sealing strip 131, and the tip of the tip 133 is connected to an intermediate position of the second section 134 in the width direction. The thickness of the first section 132 is smaller than that of the second section 134, and after the tip portion 133 is provided, when the sealing strip 131 is torn, no matter whether the cracking position of the first section 132 is at the middle position in the width direction of the first section 132, when the sealing strip is cracked to the second section 134, the crack is guided to the tip portion 133, and then enters the second section 134 from the tip end of the tip portion 133, so that the cracking position of the second section 134 is ensured to be started from the middle in the width direction. Thus, the tip 133 has a guiding effect on the cracking direction of the sealing structure 130, avoiding the risk of accidental tearing of the flexible sheet 120. In this embodiment, the tip of the tip 133 extends to the first section 135 of the second segment 134, so that the tearing process of the second segment 134 must start from the first section 135 near the middle.

Fig. 3 is a sectional view taken along a-a in fig. 1. As shown in fig. 3, the fixing ring 110 is provided with a catching groove 112 extending around the outer circumferential side thereof. By arranging the clamping groove 112, the inner edge of the wire passing hole of the equipment can be clamped into the clamping groove 112, so that the installation of the wire passing device 100 is realized. The design of the locking slot 112 provides better stability of the cable passing device 100 after installation. It can be understood that, in other embodiments of the present application, the fastening ring 110 may not be provided with the clamping groove 112 on the outer peripheral side, and the fastening ring 110 may be installed in an interference fit with the wire passing hole of the device housing.

Fig. 4 is a schematic view of a second perspective view of a wire passing device 100 according to an embodiment of the present application. Further, the stationary ring 110 is provided with four mounting grooves 114 at one side thereof in the axial direction. Four mounting grooves 114 are evenly spaced on the fixing ring 110, and the mounting grooves 114 extend from the inner peripheral side to the outer peripheral side in the radial direction of the fixing ring 110. During installation of the wire passing device 100 into the wire passing hole of the equipment, the flexible fixing ring 110 is deformed by being pressed to be inserted into the wire passing hole. The installation groove 114 is formed on one side of the fixing ring 110, so that a user can more easily extrude and deform the fixing ring 110, and the installation of the wire passing device 100 is time-saving and labor-saving. In other embodiments of the present application, the mounting grooves 114 may be formed on both sides of the fixing ring 110 in the axial direction, or the mounting grooves 114 may not be formed.

Fig. 5 is a schematic diagram of an electrical control box 200 according to an embodiment of the present application. The electric control box 200 provided by the embodiment of the application is provided with the wire passing hole, and the wire passing device 100 provided by the embodiment of the application is arranged at the wire passing hole. The outer circumference of the fixing ring 110 of the wire passing device 100 is connected to the inner side of the wire passing hole, and specifically, the inner edge of the wire passing hole is clamped into the clamping groove 112 of the wire passing device 100. The electric control box 200 provided by the embodiment of the application is provided with the wire passing device 100, so that before threading, the wire passing device 100 can well seal the wire passing hole, impurities are prevented from entering the electric control box 200, and the subsequent installation and use of the electric control box 200 are ensured.

The use method and the beneficial effects of the threading device 100 provided by the embodiment of the application are as follows:

firstly, the fixing ring 110 of the threading device 100 is pressed to be clamped into the inner side of the threading hole, and the inner edge of the threading hole is clamped into the clamping groove 112 on the outer peripheral side of the fixing ring 110, so that the threading device 100 is fixed. Before the threading is not performed, the sealing structure 130 of the threading device 100 is not torn, and the threading hole is completely sealed by the threading device 100, so that sundries are prevented from entering the electric control box 200 through the threading hole. When threading is desired, the sealing structure 130 is torn open (which may be poking the sealing structure 130 with a hard object), and the cable may pass through the cable transit apparatus 100 because the flexible sheet 120 may be lifted. After threading, the flexible sheet 120 has certain elasticity and thus is lapped on the cable, and can also play a role in sealing the wire through hole together with the cable.

To sum up, the wire passing device that this application embodiment provided couples together a plurality of flexible pieces through setting up seal structure to the hole with the retainer plate is sealed completely. Therefore, before threading, the threading device arranged in the threading hole can completely seal the threading hole, prevent the snake, the insect, the mouse and the ant or other sundries from entering the shell of the equipment, and ensure the normal installation and use in the later stage of the equipment. When the installation needs the threading, through tearing seal structure for can open after a plurality of flexible pieces warp the hole of retainer plate, thereby pass the hole of retainer plate with the line this moment and accomplish the threading. The electric control box provided by the embodiment of the application is provided with the wire passing device, so that the wire passing device can better seal the wire passing hole before threading, sundries are prevented from entering the electric control box, and the subsequent installation and use of the electric control box are guaranteed.

Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present disclosure, and it is intended that the scope of the present disclosure be defined by the appended claims.

Claims (10)

1. A wire passing device, characterized by a fixed ring (110) and a plurality of flexible sheets (120) connected to the fixed ring (110), the plurality of flexible sheets (120) being arranged circumferentially on an inner peripheral side of the fixed ring (110), the plurality of flexible sheets (120) being connected by a tearable seal structure (130), the seal structure (130) and the plurality of flexible sheets (120) together sealing an inner hole of the fixed ring (110).

2. The wire passing device according to claim 1, wherein each of the flexible sheets (120) has a fan shape, and the arc-shaped side of the flexible sheet (120) is connected to the inner circumferential side of the fixing ring (110).

3. The cable passing device according to claim 2, wherein the cable passing device (100) comprises four flexible sheets (120), each flexible sheet (120) is a right-angled fan shape, the right-angled sides of the four flexible sheets (120) together form a cross-shaped gap, and the cross-shaped gap is sealed by the sealing structure (130).

4. Thread passing device according to claim 2 or 3, characterized in that the thickness of the sealing structure (130) is smaller than the thickness of the flexible sheet (120) in the axial direction of the retaining ring (110).

5. The wire passing device according to claim 4, wherein the sealing structure (130) comprises a plurality of sealing strips (131), the number of the sealing strips (131) is equal to the number of the flexible sheets (120), a gap between two adjacent flexible sheets (120) is sealed by the sealing strips (131), one end of each sealing strip (131) is connected to the inner circumference side of the fixing ring (110), the other ends of the sealing strips meet at the center of the fixing ring (110), each sealing strip (131) comprises a first section (132) and a second section (134), and the first section (132) is closer to the center of the fixing ring (110) than the second section (134);

the thickness of the first section (132) is smaller than the thickness of the second section (134) in the axial direction of the retainer ring (110).

6. Threading device according to claim 5, characterized in that said second section (134) comprises a first subsection (135) extending in the length direction of said sealing strip (131) and two second subsections (136), said two second subsections (136) being connected to two sides of said first subsection (135) and to two of said flexible sheets (120), respectively;

the thickness of the first subsection (135) is smaller than the thickness of the second subsection (136) in the axial direction of the retaining ring (110).

7. The cable transit device according to claim 5, wherein a tip portion (133) protruding in a length direction of the seal strip (131) is provided at an end of the first section (132) away from a center of the retainer ring (110), and a tip end of the tip portion (133) is connected to a middle position of the second section (134) in a width direction.

8. A yarn threading device according to claim 1, wherein said retainer ring (110) is provided with a catching groove (112) extending around an outer peripheral side thereof.

9. Threading device according to claim 1, characterized in that the retaining ring (110) is flexible, the retaining ring (110) being provided with mounting grooves (114) on at least one side in its axial direction.

10. An electric control box, characterized in that, a thread passing hole is arranged on the electric control box (200), the thread passing device (100) of any one of claims 1 to 9 is arranged at the thread passing hole, and the outer peripheral side of a fixing ring (110) of the thread passing device (100) is connected to the inner side of the thread passing hole.

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