A sealing device for the joint plastic part of an electric wire

Abstract

The present invention belongs to the field of electronic component sealing, and particularly relates to a sealing device for a connector plastic part of an electric wire. A sealing device for a connector plastic part of an electric wire with quick fixation and good sealing effect, comprising a protective housing, etc.; circular through holes are provided on both the left and right sides of the protective housing for passing electric wires, the top of the protective housing is detachably connected with an upper cover through a clamping member, air rings are arranged at the through holes on both the left and right sides of the protective housing, the docking connectors pass through the inner sides of the air rings and extend into the protective housing, and pressing members are arranged at the outer ends of the docking connectors. In the present invention, the opening of the docking connector is tightened by the pressing member instead of a bolt, and the operation is simpler and faster; when the pull rod moves inward and resets, the gas in the hollow rod is pushed into the airbag column through the connecting pipe, and the airbag column arches, so that the airbag column presses against the outer surface of the electric wire to prevent moisture from entering the protective housing.

Description

Technical Field

[0001] The present invention belongs to the field of electronic component sealing, and particularly relates to a sealing device for a plastic connector of an electric wire. Background Art

[0002] The plastic sealing of an electric wire connector refers to using specific plastic materials and devices to wrap and seal the wiring part to achieve the purposes of waterproofing, moisture-proofing, and insulation protection. Such sealing measures are crucial for ensuring the safety and reliability of electric wire connections, especially in outdoor or humid environments.

[0003] When installing the existing plastic sealing device for an electric wire connector, it is usually fixed by bolts. Tightening the bolts requires the use of tools. Especially when multiple bolts are needed to fix the sealing device, the process of tightening each bolt is time-consuming, reducing the overall installation efficiency. This shortcoming is particularly obvious in scenarios such as large-scale wiring projects or emergency repairs. At the same time, in some environments with vibrations, the bolts are likely to loosen, resulting in poor sealing effects.

[0004] Therefore, there is an urgent need to develop a sealing device for a plastic connector of an electric wire that can be quickly fixed and has a good sealing effect. Summary of the Invention

[0005] To overcome the above-mentioned shortcomings of the prior art, the present invention provides a sealing device for a plastic connector of an electric wire that can be quickly fixed and has a good sealing effect.

[0006] The technical solution of the present invention is: a sealing device for a plastic connector of an electric wire, including a protective housing, a docking head, an upper cover, a clamping member, an air ring, and a pressing member. Circular through holes are provided on both left and right sides of the protective housing. The top of the protective housing is detachably connected to the upper cover through the clamping member. Air rings are provided at the through holes on both left and right sides of the protective housing. The docking head passes through the inside of the air ring and extends into the protective housing, and pressing members are provided at the outer ends of the docking head. The characteristics are: the pressing member includes a hollow rod, a pull rod, a tapered sleeve, and a spring II. Hollow rods parallel to the axis of the docking head are symmetrically arranged before and after on the outer side surface of the docking head. A pull rod is connected inside the hollow rod. A tapered sleeve is slidably connected between the front and rear pull rods. A spring II is connected between the tapered sleeve and the pull rod.

[0007] Optionally, the clamping member includes an insertion block, a concave insertion rod, a spring I, and a concave sleeve. Insertion blocks are symmetrically arranged left and right on the front and rear sides of the bottom of the upper cover. Circular through holes are provided on the insertion blocks. Concave sleeves are provided on the inner side walls of the protective housing below the insertion blocks. Concave insertion rods are slidably connected to the protective housing on the front and rear sides of the insertion blocks. The end of the concave insertion rod passes through the through hole on the insertion block. A spring I is connected between the concave insertion rod and the protective housing.

[0008] Optionally, it further includes fixing members. Fixing members are provided on both the left and right sides inside the protective housing. The fixing members include guide rod I, connecting plate, spring III, guide rod II, insertion plate, and spring IV. Connecting plates are slidably connected to both the left and right parts inside the protective housing through guide rod I. The connecting plates are concave-shaped and symmetrically arranged. A spring III is connected between the connecting plates and the protective housing. Slots are evenly spaced circumferentially on the part of the docking head inside the protective housing. Insertion plates are slidably connected to the inner front and rear inner walls of the connecting plates through guide rod II. A spring IV is connected between the insertion plates and the connecting plates.

[0009] Optionally, it further includes a tensioning member. A tensioning member is provided between the upper cover and the connecting plate. The tensioning member includes a square frame and a wedge-shaped block. Square frames are symmetrically arranged on the upper and lower parts of the inner side of the connecting plate. A wedge-shaped block is fixedly connected to the upper cover above the square frame.

[0010] Optionally, it further includes a reinforcing member. A reinforcing member is connected between the connecting plate and the protective housing. The reinforcing member includes a mounting block, a reinforcing plate, and a pushing block. Mounting blocks are fixedly connected to the upper parts of the inner sides of both the left and right walls inside the protective housing. The mounting blocks extend inward through the connecting plate. A reinforcing plate is slidably connected vertically to the mounting blocks. The bottom of the reinforcing plate is inserted into the slot on the docking head. A pushing block is fixedly connected to the connecting plate above the reinforcing plate.

[0011] Optionally, the inner side of the pushing block is an inclined surface that slopes downward. The inner side surface of the pushing block is in contact with the upper side surface of the reinforcing plate. When the pushing block moves inward, it can push the reinforcing plate downward.

[0012] Optionally, it further includes an interface seal. An interface seal is provided on the docking head. The interface seal includes a communicating pipe, an airbag column, and spring V. The pull rod is slidably connected to the hollow rod. An airbag column is provided on the inner side surface of the docking head. The airbag column is communicated with the hollow rod through the communicating pipe. A spring V is connected between the pull rod and the hollow rod.

[0013] Optionally, it further includes a sealing reinforcement member. Sealing reinforcement members are provided at the four corners inside the protective housing. The sealing reinforcement members include a cylinder body, a piston rod, spring VI, and a connecting pipe. Cylinder bodies are vertically installed at the four corners inside the protective housing. A piston rod is slidably arranged inside the cylinder body. The piston rod passes through the upper wall of the cylinder body. A spring VI is connected between the piston rod and the cylinder body. A connecting pipe is connected between the bottom of the cylinder body and the adjacent air ring.

[0014] The present invention has the following advantages: The present invention tightens the opening of the docking head by using a pressing member instead of a bolt, and the operation is simpler and faster; when the pull rod moves inward and resets, the gas in the hollow rod is pushed into the airbag column through the communication pipe, and the airbag column arches, so that the airbag column presses against the outer surface of the wire to prevent moisture from entering the protective housing; the tensioning member and the reinforcing member fix the docking head on the protective housing, making the installation of the docking head more stable; the upper cover covers the top of the protective housing, driving the piston rod to move downward to press the gas in the cylinder into the air ring through the connecting pipe, so that the air ring expands, and after the air ring expands, it fits between the protective housing and the docking head, improving the sealing performance between the protective housing and the docking head and preventing moisture from entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a three-dimensional structure diagram of the present invention.

[0017] Figure 2 It is a three-dimensional structure diagram of the internal structure of the present invention.

[0018] Figure 3 It is a three-dimensional structure diagram of a part of the present invention.

[0019] Figure 4 It is a three-dimensional structure diagram of the clamping member of the present invention.

[0020] Figure 5 It is a three-dimensional structure diagram of the pressing member of the present invention.

[0021] Figure 6 It is a three-dimensional structure diagram of the fixing member of the present invention.

[0022] Figure 7 It is an enlarged view of the fixing member of the present invention.

[0023] Figure 8 It is a three-dimensional structure diagram of the tensioning member and the reinforcing member of the present invention.

[0024] Figure 9 It is a three-dimensional structure diagram of the interface seal of the present invention.

[0025] Figure 10 It is a three-dimensional structure diagram of the seal strengthening member of the present invention.

[0026] In the above drawings: 1 - protective housing, 2 - docking head, 3 - upper cover, 4 - clamping member, 41 - insertion block, 42 - concave insertion rod, 43 - spring I, 44 - concave sleeve, 5 - air ring, 6 - pressing member, 61 - hollow rod, 62 - pull rod, 63 - conical sleeve, 64 - spring II, 7 - fixing member, 71 - guide rod I, 72 - connecting plate, 73 - spring III, 74 - slot, 75 - guide rod II, 76 - insertion plate, 77 - spring IV, 8 - tensioning member, 81 - square frame, 82 - wedge block, 9 - reinforcement member, 91 - mounting block, 92 - reinforcement plate, 93 - pushing block, 10 - interface seal, 101 - airbag column, 102 - connecting pipe, 103 - spring V, 11 - sealing reinforcement member, 111 - cylinder block, 112 - piston rod, 113 - spring VI, 114 - connecting pipe. Detailed implementation mode

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] Therefore, a feature pointed out in this specification will be used to illustrate one feature of one embodiment of the present invention, rather than implying that each embodiment of the present invention must have the illustrated feature. In addition, it should be noted that this specification describes many features. Although some features may be combined to show possible system designs, these features can also be used in other combinations that are not explicitly described. Therefore, unless otherwise stated, the illustrated combinations are not intended to be limiting.

[0029] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0030] Embodiment: A sealing device for a plastic part of a wire joint, as Figures 1-6 shown, comprising a protective housing 1, a docking head 2, an upper cover 3, a clamping member 4, an air ring 5 and a pressing member 6. Circular through holes are provided on both left and right sides of the protective housing 1 for passing wires. The upper cover 3 is detachably connected to the top of the protective housing 1 through the clamping member 4. Air rings 5 are provided at the through holes on both left and right sides of the protective housing 1. The docking head 2 passes through the inside of the air ring 5 and extends into the protective housing 1. Pressing members 6 are provided at the outer ends of the docking head 2, and the outer ends of the docking head 2 are a circle of inwardly indented sheets.

[0031] As Figure 4 and Figure 6 shown, the clamping member 4 includes an insertion block 41, a concave insertion rod 42, a spring I 43 and a concave sleeve 44. Insertion blocks 41 are symmetrically arranged left and right on the front and rear sides of the bottom of the upper cover 3. Circular through holes are formed in the insertion blocks 41. Concave sleeves 44 are arranged on the inner side walls of the protective housing 1 below the insertion blocks 41. When the upper cover 3 covers the protective housing 1, the insertion blocks 41 are inserted into the concave sleeves 44. Concave insertion rods 42 are slidably connected to the protective housing 1 on the front and rear sides of the insertion blocks 41. The end portions of the concave insertion rods 42 pass through the through holes in the insertion blocks 41. A spring I 43 is connected between the concave insertion rods 42 and the protective housing 1.

[0032] As Figure 5 shown, the pressing member 6 includes a hollow rod 61, a pull rod 62, a tapered sleeve 63 and a spring II 64. Hollow rods 61 parallel to its axis are symmetrically arranged on the front and rear sides of the outer surface of the docking head 2. A pull rod 62 is connected inside the hollow rod 61. A tapered sleeve 63 is slidably connected between the front and rear pull rods 62. The tapered sleeve 63 tapers from the inside to the outside. A spring II 64 is connected between the tapered sleeve 63 and the pull rod 62.

[0033] As Figure 6 and Figure 7 shown, it further includes a fixing member 7. Fixing members 7 are arranged on the left and right sides inside the protective housing 1. The fixing member 7 includes a guide rod I 71, a connecting plate 72, a spring III 73, a guide rod II 75, an insertion plate 76 and a spring IV 77. Connecting plates 72 are slidably connected to the left and right parts inside the protective housing 1 through guide rods I 71. The connecting plates 72 are concave. The connecting plates 72 are symmetrically arranged. A spring III 73 is connected between the connecting plates 72 and the protective housing 1. Slots 74 are evenly spaced circumferentially on the part of the docking head 2 inside the protective housing 1. Insertion plates 76 are slidably connected to the inner front and rear inner walls of the connecting plates 72 through guide rods II 75. A spring IV 77 is connected between the insertion plates 76 and the connecting plates 72. After the docking head 2 is inserted into the protective housing 1, the insertion plates 76 are inserted into the slots 74; when it is necessary to remove the docking head 2, the insertion plates 76 are pulled outward to leave the slots 74, and then the docking head 2 can be pulled outward forcefully. When installing the docking head 2, the insertion plates 76 are inserted into the slots 74, which can reinforce the docking head 2 and prevent the docking head 2 from being pulled out by external force. At the same time, because the insertion plates 76 are beveled, they will not obstruct the docking head 2 when inserting the docking head 2 and can be directly inserted, facilitating the fixation of the docking head 2.

[0034] As Figure 8As shown, it further includes a tensioning member 8. A tensioning member 8 is provided between the upper cover 3 and the connecting plate 72. The tensioning member 8 includes a square frame 81 and a wedge block 82. Square frames 81 are symmetrically arranged at the front and rear of the upper part inside the connecting plate 72. A wedge block 82 is fixedly connected to the upper cover 3 above the square frame 81 by bolts. The inclined surface of the wedge block 82 faces inward. When the upper cover 3 covers the top of the protective housing 1, the inclined surface of the wedge block 82 generates a force pushing the square frame 81 inward.

[0035] As Figure 8 shown, it further includes a reinforcing member 9. A reinforcing member 9 is connected between the connecting plate 72 and the protective housing 1. The reinforcing member 9 includes a mounting block 91, a reinforcing plate 92 and a pushing block 93. Mounting blocks 91 are fixedly connected to the upper parts of the middle positions of the left and right inner walls inside the protective housing 1 by bolts. The mounting blocks 91 extend inward through the connecting plate 72. A reinforcing plate 92 is slidably connected to the mounting blocks 91 in the vertical direction. The bottom of the reinforcing plate 92 is inserted into the slot 74 on the docking head 2. The top of the reinforcing plate 92 is an inclined surface inclined inward. A pushing block 93 is fixedly connected to the connecting plate 72 above the reinforcing plate 92 by bolts. The inner side of the pushing block 93 is an inclined surface inclined downward. The inner side surface of the pushing block 93 is in contact with the upper side surface of the reinforcing plate 92. When the pushing block 93 moves inward, it can push the reinforcing plate 92 downward.

[0036] As Figure 9 shown, it further includes an interface seal 10. An interface seal 10 is provided on the docking head 2. The interface seal 10 includes a communicating pipe 102, an airbag column 101 and a spring V 103. The pull rod 62 is slidably connected to the hollow rod 61. An airbag column 101 is provided on the inner side surface of the docking head 2. The airbag column 101 is communicated with the hollow rod 61 through the communicating pipe 102. A spring V 103 is connected between the pull rod 62 and the hollow rod 61. When the pull rod 62 moves in the left - right direction, it can inject gas into or extract gas from the airbag column 101.

[0037] As Figure 10 shown, it further includes a sealing reinforcement member 11. Sealing reinforcement members 11 are provided at the four corners inside the protective housing 1. The sealing reinforcement member 11 includes a cylinder body 111, a piston rod 112, a spring VI 113 and a connecting pipe 114. Cylinder bodies 111 are vertically installed at the four corners inside the protective housing 1. A piston rod 112 is slidably arranged inside the cylinder body 111. The piston rod 112 passes through the upper wall of the cylinder body 111. When the upper cover 3 covers the top of the protective housing 1, it can push the piston rod 112 downward. A spring VI 113 is connected between the piston rod 112 and the cylinder body 111. A connecting pipe 114 is connected between the bottom of the cylinder body 111 and the adjacent air ring 5.

[0038] When installing the wire using this device, first pull the conical sleeve 63 outward. The conical sleeve 63 moves outward and first compresses the spring II 64. When the elastic force of the compressed spring II 64 is greater than the elastic force of the spring V 103, the pull rod 62 moves outward together with the conical sleeve 63. At this time, the gas in the airbag column 101 is pumped into the hollow rod 61 through the connecting pipe 102, and the inner side of the airbag column 101 becomes flattened. Subsequently, the wire is passed through the airbag column 101 and into the protective housing 1 for installation. After the wire installation is completed, release the conical sleeve 63. Under the action of the reset of the spring II 64 and the spring V 103, the conical sleeve 63 moves inward to cover the outer end of the docking head 2, causing the outer end of the docking head 2 to close towards the middle and press against the outer side of the airbag column 101. At the same time, the pull rod 62 resets and moves inward, pushing the gas in the hollow rod 61 into the airbag column 101 through the connecting pipe 102, and the airbag column 101 arches, so that the airbag column 101 presses tightly on the outer surface of the wire to prevent moisture from entering the protective housing 1. Subsequently, pull the concave insertion rod 42 outward. The spring I 43 is compressed. Then place the upper cover 3 above the protective housing 1. Then release the concave insertion rod 42. Under the action of the reset of the spring I 43, drive the concave insertion rod 42 to reset and insert into the through hole on the insertion block 41 to fix the upper cover 3. When the upper cover 3 covers the protective housing 1, the wedge-shaped block 82 generates an inward driving force on the square frame 81. The square frame 81 transmits the force to the connecting plate 72, causing the connecting plate 72 to be pressed tightly inward, driving the insertion plate 76 to be pressed tightly inward on the docking head 2. In this way, the docking head 2 can be further fixed, making the installation of the docking head 2 more stable. When the connecting plate 72 is pressed tightly inward, it drives the pushing block 93 to be pressed tightly to the right, and further drives the reinforcing plate 92 to be pressed downward. The reinforcing plate 92 is inserted into the upper slot 74 to reinforce the docking head 2 again. When the upper cover 3 covers the top of the protective housing 1, the upper cover 3 pushes the piston rod 112 downward. The spring VI 113 is compressed. The piston rod 112 moves downward and presses the gas in the cylinder body 111 into the air ring 5 through the connecting pipe 114, causing the air ring 5 to expand. After the air ring 5 expands, it adheres between the protective housing 1 and the docking head 2, improving the sealing between the protective housing 1 and the docking head 2 and preventing the entry of moisture.

[0039] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited by the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A sealing device for a joint plastic part of an electric wire, comprising a protective housing (1), a butt joint (2), an upper cover (3), a clamping member (4), an air ring (5) and a pressing member (6). Circular through holes are provided on both the left and right sides of the protective housing (1). The upper cover (3) is detachably connected to the top of the protective housing (1) through the clamping member (4). Air rings (5) are provided at the through holes on both the left and right sides of the protective housing (1). The butt joint (2) passes through the inner side of the air ring (5) and extends into the protective housing (1). Pressing members (6) are provided at the outer ends of the butt joint (2); It is characterized in that: The pressing member (6) includes a hollow rod (61), a pull rod (62), a tapered sleeve (63) and a spring II (64). The hollow rods (61) parallel to its axis are symmetrically arranged on the front and rear outer sides of the docking head (2). The pull rod (62) is connected inside the hollow rod (61). The tapered sleeve (63) is slidably connected between the pull rods (62) on the front and rear sides. A spring II (64) is connected between the tapered sleeve (63) and the pull rod (62). It also includes a fixing member (7). The fixing members (7) are arranged on both the left and right sides inside the protective housing (1). The fixing member (7) includes a guide rod I (71), a connecting plate (72), a spring III (73), a guide rod II (75), a plug board (76) and a spring IV (77). The connecting plates (72) are slidably connected to both the left and right parts inside the protective housing (1) through the guide rod I (71). The connecting plate (72) is concave. The connecting plates (72) are symmetrically arranged. A spring III (73) is connected between the connecting plate (72) and the protective housing (1). Slots (74) are evenly spaced circumferentially on the part of the docking head (2) inside the protective housing (1). The plug boards (76) are slidably connected to the inner front and rear inner walls of the connecting plate (72) through the guide rod II (75). A spring IV (77) is connected between the plug board (76) and the connecting plate (72). It also includes an interface seal (10). The interface seal (10) is arranged on the docking head (2). The interface seal (10) includes a connecting pipe (102), an airbag column (101) and a spring V (103). The pull rod (62) is slidably connected to the hollow rod (61). An airbag column (101) is arranged on the inner side surface of the docking head (2). The airbag column (101) is communicated with the hollow rod (61) through the connecting pipe (102). A spring V (103) is connected between the pull rod (62) and the hollow rod (61).

2. The sealing device for the connector plastic part of an electric wire according to claim 1, characterized in that: The clamping member (4) includes a plug (41), a concave plug rod (42), a spring I (43) and a concave sleeve (44). The plugs (41) are symmetrically arranged on the left and right sides of the front and rear of the bottom of the upper cover (3). Circular through holes are provided on the plugs (41). The inner side walls of the protective housing (1) below the plugs (41) are provided with concave sleeves (44). The concave plug rods (42) are slidably connected to the protective housing (1) on the front and rear sides of the plugs (41). The end of the concave plug rod (42) passes through the through hole on the plug (41). A spring I (43) is connected between the concave plug rod (42) and the protective housing (1).

3. The sealing device for the joint plastic part of an electric wire according to claim 2, characterized in that: It also includes a tensioning member (8). A tensioning member (8) is arranged between the upper cover (3) and the connecting plate (72). The tensioning member (8) includes a square frame (81) and a wedge block (82). The square frames (81) are symmetrically arranged on the front and rear of the upper part inside the connecting plate (72). The wedge block (82) is fixedly connected to the upper cover (3) above the square frame (81).

4. A sealing device for a joint plastic part of an electric wire according to claim 3, characterized in that: It further includes a reinforcing member (9). A reinforcing member (9) is connected between the connecting plate (72) and the protective housing (1). The reinforcing member (9) includes a mounting block (91), a reinforcing plate (92) and a pushing block (93). Mounting blocks (91) are fixedly connected to the upper middle parts of the inner sides of the left and right walls in the protective housing (1). The mounting blocks (91) extend inwards through the connecting plate (72). A reinforcing plate (92) is vertically slidably connected to the mounting blocks (91). The bottom of the reinforcing plate (92) is inserted into the slot (74) on the docking head (2). A pushing block (93) is fixedly connected to the connecting plate (72) above the reinforcing plate (92).

5. The sealing device for the joint plastic part of an electric wire according to claim 4, characterized in that: The inner side of the pushing block (93) is an inclined surface sloping downwards. The inner side surface of the pushing block (93) is in contact with the upper side surface of the reinforcing plate (92). When the pushing block (93) moves inwards, it can push the reinforcing plate (92) downwards.

6. The sealing device for the joint plastic part of an electric wire according to claim 5, characterized in that: It further includes a sealing and strengthening member (11). Sealing and strengthening members (11) are arranged at the four corners in the protective housing (1). The sealing and strengthening member (11) includes a cylinder block (111), a piston rod (112), a spring VI (113) and a connecting pipe (114). Cylinder blocks (111) are vertically installed at the four corners in the protective housing (1). A piston rod (112) is slidably arranged in the cylinder block (111). The piston rod (112) passes through the upper wall of the cylinder block (111). A spring VI (113) is connected between the piston rod (112) and the cylinder block (111). A connecting pipe (114) is connected between the bottom of the cylinder block (111) and the adjacent air ring (5).

Images