Waterproof plug threading mechanism

Abstract

The invention discloses a waterproof plug threading mechanism, which belongs to the technical field of waterproof plug installation, and is characterized in that a semicircular groove for placing a wire core section is formed in a first installation block, a first pressing block matched with the first installation block is arranged above the first installation block, and a semicircular groove is also formed in the first pressing block; the first pressing block is in contact fit with the first mounting block to extrude and correct the wire core section into a regular cylindrical shape; a centering bridging column with a blind hole in the end part is axially, elastically and slidably mounted in the mounting block, axially penetrates through the waterproof bolt in a sliding fit manner, and is propped against and connected with a baffle plate which is vertically and slidably mounted between the first mounting block and the mounting block; when the baffle vertically slides out of the position between the first installation block and the placement block, the waterproof plug slides to the centering bridging column in a translation mode and slides to an insulation sheath at the end of the electric wire along the centering bridging column. According to the invention, threading operation of the waterproof plug can be realized conveniently, efficiently, safely and reliably.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof plug installation equipment, in particular to a waterproof plug threading mechanism. Background Art

[0002] The waterproof plug on the wire is a seal used to prevent water from entering the wire connection part. It is usually made of rubber or plastic. The waterproof plug can effectively prevent moisture, dust and other impurities from entering the wire connection part, protect the wires and electrical equipment from moisture and pollution, and ensure the normal operation of the electrical system. In some applications, the waterproof plug can also provide additional insulation protection to prevent short circuits between wires or between wires and other metal parts. The waterproof plug can also fix the position of the wire to prevent the wire from loosening or shifting during use, and also protect the connection part of the wire from mechanical damage.

[0003] When installing the waterproof plug, the waterproof plug is usually installed at the wire connection part by crimping or inserting to ensure a good seal. Fig. 9 As shown, this is one of the most classic installation methods of waterproof plugs. Usually, after stripping off a section of the metal wire core section for connection at the end of the wire, a waterproof plug is put on the root of this exposed wire core section, which is the threading operation of the waterproof plug. At present, when threading the waterproof plug, it is usually manually pressed and sleeved, that is, one hand holds the end of the wire, and the other hand holds the waterproof plug and pushes it axially, squeezing it onto the wire, or using auxiliary tools, such as some pressure equipment to push the waterproof plug axially forward, and the assembler holds the wire close to the wire core section, waiting for the equipment to drive the waterproof plug to move axially, and then puts it on the electric wire in his hand to complete the press-sleeve connection. In the above operation process, it is often encountered that when the waterproof plug is sleeved, the end of the metal wire pierces the inner wall of the waterproof plug, which not only causes the waterproof plug to be damaged, but also is very likely to directly cause the waterproof plug to be unable to be installed on the wire, and sometimes even pierces the hand. Summary of the invention

[0004] In view of the above introduction to the current state of the art, the purpose of the present invention is to provide a waterproof plug threading mechanism to better solve a series of technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention adopts a waterproof plug threading mechanism, including a mounting seat for horizontally installing electric wires, the mounting seat including a first mounting block, the first mounting block having a semicircular groove for placing a wire core segment, a first pressing block cooperating with the first mounting block is provided above the first mounting block, the first pressing block is also provided with a semicircular groove, the first pressing block contacts and cooperates with the first mounting block to extrude and correct the wire core segment into a regular cylindrical shape; it also includes a placement block for horizontal elastic sliding installation of the waterproof plug, a centering bridge column with a blind hole at the end is axially elastically slidably installed in the placement block, the centering bridge column axially slides through the waterproof plug and contacts and contacts with a baffle vertically slidably installed between the first mounting block and the placement block, when the baffle vertically slides out from between the first mounting block and the placement block, due to the axial elastic pushing action, the centering bridge column moves axially forward and when the blind hole is sleeved on the wire core segment, the waterproof plug slides parallely to the centering bridge column, and slides along the centering bridge column to the insulating sheath at the end of the wire.

[0006] Furthermore, in the assembled state, the front end of the centering bridging column passes through the waterproof plug, and an axial ring is fixed on the centering bridging column. A first seat tube perpendicular to the axial ring is fixed to one end of the waterproof plug facing the waterproof plug, and a first sliding rod is slidably inserted in the first seat tube through a first compression spring, and a sliding ring coaxial with the waterproof plug is fixed to the end of the first sliding rod to limit the waterproof plug to a position in contact with the baffle at the initial moment.

[0007] Furthermore, a push plate is fixed on the centering bridging column on the right side of the collar, and a second seat tube is fixed vertically on the push plate. A second slide rod is elastically and slidably inserted in the second seat tube through a second compression spring, and the end of the second slide rod is in contact with the surface of the baffle.

[0008] Furthermore, the stiffness coefficient of the second spring is greater than that of the first spring, and in the assembled state, the first spring and the second spring are both in an equal amount of compression state, or the compression amount of the second compression spring is greater than that of the first compression spring.

[0009] Furthermore, a magnetic ring is provided on the end face of the placement block and the end face of the push plate. The two magnetic rings are arranged opposite to each other and attract each other. The magnetic force is sufficient to ensure that after the baffle is pulled out, the second slide rod moves the push plate to the left until it contacts the end of the placement block and is connected as one.

[0010] Furthermore, the baffle has at least two vertically arranged guide rails on one side facing the placement block, and the guide rails are vertically slidably inserted into two limiting slide grooves at the end of the placement block.

[0011] Furthermore, a U-shaped notch with an opening facing upward is vertically provided in the center between the two guide rails, the bottom of the inner wall of the U-shaped notch facing the first pressing block is a conical surface, and the end of the centering bridging column is a conical end.

[0012] Furthermore, the mounting seat also includes a second mounting block, the second mounting block is provided with an arc groove for horizontally placing the power supply line, the arc groove is coaxially aligned with the semicircular groove, a second vertically installed pressure block is provided above the second mounting block to clamp the wires close to the wire core segment, a third mounting block is provided between the first mounting block and the second mounting block and is respectively connected to the two, the third mounting block has an accommodation cavity for the waterproof plug to slide axially into, and the axial length of the accommodation cavity is equal to the axial length of the waterproof plug.

[0013] Furthermore, the first pressing block and the second pressing block are each vertically slidably mounted directly above their corresponding mounting blocks via a pair of guide pillars.

[0014] Furthermore, it also includes an inner sleeve, which includes an integrally formed semicircular sleeve and a cylindrical sleeve, wherein the semicircular sleeve is axially slidably installed in the arc groove, the cylindrical sleeve is axially installed in the installation cavity, and the end of the semicircular sleeve has an integral flange plate, the free end of the flange plate is coaxially connected to a return spring, the return spring is installed in a mounting cover fixed to the end of the second mounting seat, and in the assembled state, the return spring makes the flange plate close to the end face of the second mounting seat, and the cylindrical sleeve is just completely located in the installation cavity.

[0015] The waterproof plug threading mechanism of the present invention forms a compact and regular cylindrical shape by extruding and correcting the wire core segment of the wire with the insulation layer removed, so that the waterproof plug can be axially sleeved, avoiding the metal wire from stabbing the waterproof plug due to the scatteredness, or hindering the sleeve installation of the waterproof plug. In addition, the centering bridge column and the waterproof plug with different ejection speeds are used, so that the centering bridge column first sleeves the above-mentioned wire core segment and completely isolates it from the waterproof plug, which not only completely avoids the scratches between the waterproof plug and the centering bridge column, but also serves as an intermediate guiding columnar element, allowing the waterproof plug to pass axially quickly and smoothly, and then it is easy to accurately sleeve on the wire, and then the threading of the waterproof plug is automatic, efficient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following are auxiliary illustrations for explaining some specific embodiments of the present invention. The drawings described are mainly the principles of the specific operation execution structures or methods of some embodiments of the present invention. However, this does not mean that the physical structure or operation steps of the present invention can only be as shown in the drawings.

[0017] Figure 1 It is a longitudinally cut top view schematic diagram of the present invention; Figure 2 for Figure 1 A right side view of the baffle in FIG. Figure 3 for Figure 1 A diagram of the matching structure of the left side of the baffle and the first mounting block; Figure 4 It is a left view at the second mounting block; Figure 5 for Figure 4 a right side view of the structure shown; Figure 6 is a schematic diagram of the cooperation between the second mounting block and the second pressing block; Figure 7 for Figure 1 A schematic diagram of a second mounting block and a third mounting block in which an inner bushing is provided; Figure 8 for Figure 7 A left side view of the second mounting block in the illustrated structure; Fig. 9 This is a schematic diagram of the waterproof plug being passed through the wire.

[0018] Component number explanation: electric wire 1, wire core segment 101, first mounting block 2, semicircular groove 201, placement block 3, waterproof plug 4, centering bridging column 5, shaft ring 6, first seat tube 7, first compression spring 8, first slide bar 9, push plate 10, second compression spring 11, second slide bar 12, magnetic body 13, sliding ring 14, baffle 15, guide rail 16, U-shaped notch 17, hydraulic telescopic rod 18, second mounting block 19, arc groove 1901, second pressure block 20, guide column 21, third mounting block 22, placement cavity 2201, first pressure block 23, semicircular bushing 2401, cylindrical bushing 2402, flange plate 2403, return spring 25, mounting cover 26. DETAILED DESCRIPTION

[0019] The embodiments of the present invention will be fully described below, and some core features of the embodiments will be specifically shown in the accompanying drawings, wherein the same or similar reference numerals in the drawings represent the same or similar technical features, or structures or steps or processes with similar functions. Other embodiments replaced by ordinary technicians based on these embodiments without the need for creative work also belong to the protection scope of the present invention.

[0020] See also Figure 1 and Figure 3The waterproof plug threading mechanism shown mainly includes a mounting seat for horizontally mounting the electric wire 1. Specifically, the mounting seat includes a first mounting block 2. In order to correct the wire core segment 101 from which the insulation layer has been removed, a semicircular groove 201 is specially provided on the first mounting block 2 for the wire core segment 101 to rest. At the same time, a first pressing block 23 is provided above the first mounting block 2 to match it, and a semicircular groove 201 is also provided on the first pressing block 23, so that under the drive of the hydraulic telescopic rod 18, the two pressing blocks squeeze and correct the above-mentioned wire core segment 101 between them into a cylindrical shape, so as to avoid the metal wire of the wire core part being scattered and opening and stabbing the waterproof plug 4, and to avoid hindering the sleeve installation of the waterproof plug 4. In short, in the above structure, the first pressing block 23 contacts and cooperates with the first mounting block 2 to squeeze and correct the wire core segment 101 into a regular cylindrical shape. At the same time, this embodiment also includes a placement block 3 for horizontal elastic sliding installation of the waterproof plug 4, that is, the waterproof plug 4 can be driven by elastic force to move closer in this placement block 3 toward the direction of the above-mentioned wire core. In addition, a centering bridge column 5 with a blind hole at the end is axially elastically slidably installed in the placement block 3. On the one hand, the centering bridge column is coaxially sleeved for the waterproof plug 4 to realize the positioning installation of the waterproof plug 4, that is, the centering bridge column 5 axially slides through the waterproof plug 4 and contacts with the baffle 15 vertically slidably installed between the first installation block 2 and the placement block 3. On the other hand, when the baffle 15 vertically slides out from between the first installation block 2 and the placement block 3, due to the axial elastic jacking effect that always exists, the centering bridge column 5 moves forward axially and instantly, and makes its blind hole just coaxially sleeved on the wire core segment 101, isolating the wire core segment 101 from the waterproof plug 4, so that the waterproof plug can slide horizontally onto the centering bridge column 5, and pass over the wire core segment 101 along the centering bridge column 5, and then can slide onto the insulating sheath at the end of the wire 1, realizing the automatic sleeve assembly of the waterproof plug 4.

[0021] As one of the specific implementation structures, such as Figure 1 In the assembled state of the threading mechanism, the front end of the centering bridging column 5 is passed through the waterproof plug 4, and preferably exposed outside the waterproof plug 4, and a shaft ring 6 is fixed on the centering bridging column 5, and this shaft ring 6 faces one end of the waterproof plug 4, and is specially fixed with a first seat tube 7 perpendicular to it. A first slide rod 9 is slidably inserted in the first seat tube 7 through a first compression spring 8, and a sliding ring 14 coaxial with the waterproof plug 4 is fixed at the end of the first slide rod 9. The sliding ring 14 is used to directly contact and cooperate with the end face of the waterproof plug 4 to limit the waterproof plug 4 to a position in contact with the baffle 15 at the initial moment. The waterproof plug 4 and the centering bridging column 5 can both be translated in the form of forward shooting under the support of their respective corresponding elastic forces to achieve assembly.

[0022] In the above embodiments, specifically, Figure 1A push plate 10 is also fixed on the centering bridging column 5 on the right side of the shaft ring 6, and a second seat tube is fixed on the push plate 10 vertically thereon. A second slide bar 12 is elastically and slidably inserted in the second seat tube through a second compression spring 11, and the end of the second slide bar 12 contacts and contacts the surface of the baffle 15, so that at the moment when the baffle 15 is quickly withdrawn, the second slide bar 12 is ejected at high speed, and then moves forward with the push plate 10, that is, moves forward with the centering bridging column 5. In specific practice, the end of the second slide bar 12 can be designed as a T-bolt structure, which is slidably installed in the second seat tube.

[0023] In order to allow the centering bridging column 5 to be better put on the core segment 101 first, and then the waterproof plug 4 moves to the outside of the core segment 101, the present embodiment is designed so that the stiffness coefficient of the second spring is greater than the stiffness coefficient of the first spring, and in the assembled state, the first spring and the second spring are both in an equal amount of compression state, or the compression amount of the second compression spring 11 is greater than that of the first compression spring, so that the core segment 101 can be put on the centering bridging column 5 first, which not only prevents the metal wire from being scratched against the inner hole of the waterproof plug 4, but also further plays a guiding role, so that the waterproof plug 4 can be more accurately put on the corresponding position on the wire 1, which is a key component.

[0024] As a specific example, Figure 1 As shown, a magnetic ring is provided on the end face of the placement block 3 and the end face of the push plate 10. The two magnetic rings are arranged opposite to each other and attract each other. The magnetic force is large enough to make the second slide bar 12 move the push plate 10 to the left until it contacts the end of the placement block 3 after the baffle 15 is pulled out, and then they are connected as a whole, so as to avoid intermittent impact vibration between the push plate 10 and the end face of the placement block 3 due to the vibration of the second spring, which affects the above-mentioned installation effect of the waterproof plug 4.

[0025] In order to make the baffle 15 withdraw more smoothly and quickly, Figure 1 as well as Figure 2 The baffle 15 has at least two vertically arranged guide rails 16 on the side facing the placement block 3, and the guide rails 16 are vertically slidably inserted into the two limit slide grooves at the end of the placement block 3. In addition, a U-shaped notch 17 with an opening facing upward is vertically arranged in the center between the two guide rails 16, and the bottom of the inner side wall of the end of the U-shaped notch 17 facing the first pressing block 23 is a conical surface, and the end of the centering bridge column 5 is a conical end, so that the axial positioning installation of the centering bridge column 5 is realized in the assembled state.

[0026] In more detail, in this embodiment, the mounting base used also includes a second mounting block 19, on which the second mounting block 19 is provided. Figure 4-5 , a specially provided arc groove 1901 for horizontally placing the power supply line 1 is provided, and the arc groove 1901 is coaxially aligned with the semicircular groove 201, such as Figure 6A second pressing block 20 is vertically installed above the second mounting block 19. The second pressing block is close to the second mounting block 19 to form a circular hole, which can clamp the wire 1 close to the wire core segment 101 so that the waterproof plug 4 can be installed head-on. Figure 1 A third mounting block 22 is provided between the first mounting block 2 and the second mounting block 19, and is connected to the first mounting block 2 and the second mounting block 19. The third mounting block 22 has a placement cavity 2201 for the waterproof plug 4 to slide into axially. The axial length of the placement cavity 2201 is equal to the axial length of the waterproof plug 4, so as to realize the positioning and installation of the waterproof plug 4 more accurately. Figure 3 and Figure 6 The first pressing block 23 and the second pressing block 20 are each vertically slidably mounted directly above their respective corresponding mounting blocks through a pair of guide pillars 21 for extrusion or clamping.

[0027] As a best embodiment, Figure 7-Figure 8 In this embodiment, an inner bushing is also included, and the inner bushing includes an integrally formed semicircular bushing 2401 and a cylindrical bushing 2402, wherein the semicircular bushing 2401 is axially slidably installed in the arc groove 1901, and the cylindrical bushing 2402 is also axially installed in the installation cavity, and the end of the semicircular bushing 2401 has a flange plate 2403 integrally, and the free end of the flange plate 2403 is coaxially connected to a return spring 25, and the return spring 25 is installed in a mounting cover 26 fixed to the end of the second mounting seat. Moreover, in the assembled state of the threading mechanism, the return spring 25 makes the flange plate 2403 close to the end face of the second mounting seat, and the cylindrical bushing 2402 is completely located in the mounting cavity 2201. The purpose of this design is that when the waterproof plug 4 is ejected onto the wire 1, the end of the wire 1 close to the wire core segment 101 is not easy to bend, so that the waterproof plug 4 can be quickly and smoothly coaxially sleeved. The waterproof plug 4 is gradually sleeved on the wire 1, and the above-mentioned inner bushing automatically and adaptively withdraws from the corresponding mounting block, always maintaining a stable horizontal installation posture of the wire 1, which is very clever.

[0028] The above series of specific implementation details are merely some preferred embodiments of the present invention and cannot be used to limit the protection scope of the claims of the present invention. A person skilled in the art can simply change the design ideas based on the understanding of the above embodiments and the reference to the basic principles recorded in the claims of the present invention. However, these design changes still fall within the protection scope of the invention.

Claims

1. A waterproof plug (4) threading mechanism, comprising a mounting seat for horizontally mounting an electric wire (1), characterized in that: The mounting seat comprises a first mounting block (2), the first mounting block (2) having a semicircular groove (201) for the wire core segment (101) to rest on, a first pressing block (23) cooperating therewith being provided above the first mounting block (2), the first pressing block (23) also having a semicircular groove (201), the first pressing block (23) being in contact with and cooperating with the first mounting block (2) to squeeze and correct the wire core segment (101) into a regular cylindrical shape; It also includes a placement block (3) for horizontal elastic sliding installation of the waterproof plug (4), a centering bridge column (5) with a blind hole at the end thereof being axially elastically installed in the placement block (3), the centering bridge column (5) passing through the waterproof plug (4) in an axially sliding manner, and contacting with a baffle (15) vertically slidably installed between the first installation block (2) and the placement block (3), when the baffle (15) vertically slides out from between the first installation block (2) and the placement block (3), due to the axial elastic pushing effect, the centering bridge column (5) moves axially forward and when the blind hole is sleeved on the wire core segment (101), the waterproof plug slides horizontally onto the centering bridge column (5), and slides along the centering bridge column (5) to the insulating sheath at the end of the wire (1).

2. A threading mechanism for a waterproof plug (4) according to claim 1, characterized in that: In the assembled state, the front end of the centering bridge column (5) passes through the waterproof plug (4), and a shaft ring (6) is fixed on the centering bridge column (5). A first seat tube (7) perpendicular to the waterproof plug (4) is fixed to the shaft ring (6) at one end thereof facing the waterproof plug (4). A first slide rod (9) is slidably inserted in the first seat tube (7) via a first compression spring (8), and a sliding ring (14) coaxial with the waterproof plug (4) is fixed at the end of the first slide rod (9) to limit the waterproof plug (4) to a position in contact with the baffle (15) at the initial moment.

3. A threading mechanism for a waterproof plug (4) according to claim 2, characterized in that: A push plate (10) is also fixed on the centering bridge column (5) on the right side of the collar (6), and a second seat tube is fixed on the push plate (10) vertically thereto. A second slide rod (12) is elastically and slidably inserted into the second seat tube via a second compression spring (11), and the end of the second slide rod (12) contacts and contacts the surface of the baffle (15).

4. A threading mechanism for a waterproof plug (4) according to claim 3, characterized in that: The stiffness coefficient of the second spring is greater than that of the first spring, and in the assembled state, the first spring and the second spring are both in an equal amount of compression state, or the compression amount of the second compression spring (11) is greater than that of the first compression spring.

5. A threading mechanism for a waterproof plug (4) according to claim 3, characterized in that: A magnetic ring is provided on the end surface of the placement block (3) and the end surface of the push plate (10). The two magnetic rings are arranged opposite to each other and attract each other. The magnetic force is large enough to make the second slide bar (12) move the push plate (10) to the left until it contacts the end of the placement block (3) after the baffle (15) is pulled out, and then they are connected as one.

6. A threading mechanism for a waterproof plug (4) according to claim 1, characterized in that: The baffle (15) has at least two vertically arranged guide rails (16) on one side facing the placement block (3), and the guide rails (16) are vertically slidably inserted into two limiting slide grooves at the end of the placement block (3).

7. A threading mechanism for a waterproof plug (4) according to claim 6, characterized in that: A U-shaped notch (17) with an opening facing upward is vertically provided in the center between the two guide rails (16); the bottom of the inner wall of one end of the U-shaped notch (17) facing the first pressing block (23) is a conical surface, and the end of the centering bridge column (5) is a conical end.

8. A threading mechanism for a waterproof plug (4) according to claim 1, characterized in that: The mounting seat also includes a second mounting block (19), the second mounting block (19) is provided with an arc groove (1901) for horizontally placing the power supply line (1), the arc groove (1901) is coaxially aligned with the semicircular groove (201), a second pressing block (20) is vertically installed above the second mounting block (19) to clamp the electric wire (1) close to the wire core segment (101), a third mounting block (22) is provided between the first mounting block (2) and the second mounting block (19) and is respectively connected to the two, the third mounting block (22) has a placement cavity (2201) for the waterproof plug (4) to slide axially into, and the axial length of the placement cavity (2201) is equal to the axial length of the waterproof plug (4).

9. A threading mechanism for a waterproof plug (4) according to claim 8, characterized in that: The first pressing block (23) and the second pressing block (20) are each vertically slidably mounted directly above their corresponding mounting blocks via a pair of guide pillars (21).

10. A threading mechanism for a waterproof plug (4) according to claim 8, characterized in that: It also includes an inner sleeve, which includes an integrally formed semicircular sleeve (2401) and a cylindrical sleeve (2402), wherein the semicircular sleeve (2401) is axially slidably installed in the arc groove (1901), and the cylindrical sleeve (2402) is axially installed in the installation cavity, and the end of the semicircular sleeve (2401) has an integral flange plate (2403), and the free end of the flange plate (2403) is coaxially connected to a return spring (25), and the return spring (25) is installed in a mounting cover (26) fixed to the end of the second mounting seat, and in the assembled state, the return spring (25) makes the flange plate (2403) close to the end face of the second mounting seat, and the cylindrical sleeve (2402) is just completely located in the mounting cavity (2201).

Images