Industrial plug convenient to assemble

Abstract

The utility model discloses an industrial plug convenient to assemble, which is characterized in that a first sealing element is arranged at the joint of an external thread connecting part and an internal thread connecting part, and a second sealing element is arranged between a positioning skirt edge and an insertion core seat connecting part; when the insertion core seat is connected in the insertion core via hole, the clamping end of the inner wall of the insertion core seat connecting part abuts against the interior of the clamping groove of the insertion core part to form an effective and reliable axial locking structure, and at the moment, the second sealing part is pressed by the positioning skirt edge and the insertion core seat connecting part to form a waterproof and dustproof barrier. According to the industrial plug, a first waterproof and dustproof barrier is formed, a second waterproof and dustproof barrier is formed, the double-sealing barrier ensures the sealing performance of the joint of the industrial plug, moisture and dust are effectively prevented from invading, the requirement of the IP67 protection grade can be met, the assembly process is simplified, product assembly is facilitated, the production cost is reduced, meanwhile, the industrial plug is light in weight, and the industrial plug is more flexible to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical connector, concretely relates to an industrial plug convenient to assemble. BACKGROUND

[0002] Industrial plug is also called industrial connector, which is an electrical connection device designed for harsh industrial environments, and has significant differences in safety, durability, protection level and current capacity from household plugs used in our daily life.

[0003] The IP protection level of industrial plug is crucial to ensure electrical safety and equipment reliability, especially in different working environments. In order to meet the requirements of IP66 and IP67 protection level, the existing industrial plug sets a clamping ring at the connection of the plug shell, such as the Chinese patent with publication number CN213753167U, which discloses a new type of industrial plug, including plug body, clamping ring, front cover, disc, ground terminal and zero and fire terminal. The inside of the disc is provided with a locking pin, and the locking pin is in sliding connection with the disc. The top of the locking pin is provided with a slope, and one end of the locking pin is provided with a spring. The spring is embedded in the disc, and the end of the spring is in abutment with the locking pin. The inner side of the clamping ring is fixedly provided with a positioning ring. The clamping ring and the plug body are in close connection state through the retreat-stop structure, so as to avoid the decline of the sealing performance of the connection.

[0004] Although the industrial plug with clamping ring can meet the requirements of high protection level, the addition of clamping ring undoubtedly increases the number of parts assembly of the main part of industrial plug. At the same time, the plug body needs to be provided with the retreat-stop structure matched with the clamping ring, which leads to higher production cost and lower assembly efficiency of industrial plug. In addition, the caliber of the connection of industrial plug is larger, which leads to more cumbersome use and inconvenient installation.

[0005] Therefore, it is urgent to design an industrial plug convenient to assemble to solve the defects of the above industrial plug. UTILITY MODEL CONTENT

[0006] In order to solve the above problems, the utility model provides a kind of industrial plug convenient to assemble, including mutually connected plug sheath and plug base, plug base is connected with plug pin seat, plug pin seat is connected with wiring plug pin assembly, plug sheath is equipped with external thread connection part in one end close to plug base, one side of external thread connection part is equipped with positioning step, plug base includes internal thread connection part and plug pin seat connecting part, external thread connection part is connected with internal thread connection part, the end surface of internal thread connection part is equipped with pressing step, first sealing element is connected between positioning step and pressing step;Plug pin seat includes plug pin part and the positioning skirt of the outer periphery of plug pin part, the center of plug pin seat connecting part is equipped with plug pin via, the inner wall of plug pin seat connecting part is protruded to the side of plug pin via and forms clamping end, the outer periphery of plug pin part is recessed to form clamping groove, plug pin part is connected in plug pin via, clamping end is connected in clamping groove, second sealing element is connected between positioning skirt and plug pin seat connecting part.

[0007] In a possible implementation mode, a first sealing groove is formed on the positioning step or the pressing step, the first sealing groove is annular and distributed on the outer periphery of the external thread connection part, and the first sealing element is connected in the first sealing groove.

[0008] In a possible implementation mode, a second sealing groove is formed on the positioning skirt, the second sealing groove is annular and distributed on the outer periphery of the plug pin part, and the second sealing element is connected in the second sealing groove, and the second sealing element is in contact with the end surface of the plug pin seat connecting part.

[0009] In a possible implementation mode, the positioning step is provided with a first locking slot on the side away from the plug base, a locking element is connected in the first locking slot, a second locking slot is formed on the pressing step in a position opposite to the first locking slot, and the locking element includes a locking part connected in the second locking slot.

[0010] In a possible implementation mode, the locking element includes a movable part and an acting part, the movable part is connected in the first locking slot, the locking part and the acting part are respectively located at two ends of the movable part, the side surface of the movable part is provided with a positioning protrusion, the inner wall of the first sealing groove is provided with a positioning groove, and the positioning protrusion is connected with the positioning groove in linkage along the moving direction of the movable part in the first locking slot.

[0011] In a possible implementation, the positioning groove comprises a first positioning groove and a second positioning groove, the positioning protrusion is connected in the first positioning groove, the locking portion is connected in the second locking slot, the positioning protrusion is connected in the second positioning groove, and the locking portion is not connected in the second locking slot.

[0012] In a possible implementation, the first locking slot is provided with a first anti-disengagement portion, and the bottom surface of the movable portion is provided with a second anti-disengagement portion, the first anti-disengagement portion is located on the path of the second anti-disengagement portion moving with the movable portion.

[0013] In a possible implementation, the outer threaded connecting portion is provided with a clearance passage opposite the position of the first locking slot.

[0014] In a possible implementation, the clamping ends are uniformly distributed on the inner wall of the ferrule seat connecting portion.

[0015] In a possible implementation, the plug sheath and the plug base are integrally formed.

[0016] The industrial plug is assembled in the following manner: the ferrule assembly is installed on the ferrule seat, the second sealing member is sleeved on the ferrule seat, the ferrule seat is clamped on the ferrule seat connecting portion of the plug base through the cooperation of the clamping groove and the clamping end, at this time, the second sealing member is pressed at the connection between the plug base and the ferrule seat, the first sealing member is sleeved on the positioning step, and the plug base is connected on the plug sheath through the cooperation of the inner threaded connecting portion and the outer threaded connecting portion, at this time, the first sealing member is pressed at the connection between the plug base and the plug sheath, and the assembly of the industrial plug is completed.

[0017] Compared with the prior art, the technical scheme has the following beneficial effects:

[0018] The industrial plug is assembled in the following manner: the ferrule assembly is installed on the ferrule seat, the second sealing member is sleeved on the ferrule seat, the ferrule seat is clamped on the ferrule seat connecting portion of the plug base through the cooperation of the clamping groove and the clamping end, at this time, the second sealing member is pressed at the connection between the plug base and the ferrule seat, the first sealing member is sleeved on the positioning step, and the plug base is connected on the plug sheath through the cooperation of the inner threaded connecting portion and the outer threaded connecting portion, at this time, the first sealing member is pressed at the connection between the plug base and the plug sheath, and the assembly of the industrial plug is completed.

[0019] The industrial plug convenient to assemble cancels the independent clamping ring and the complicated retreat-preventing structure on the plug body, directly reduces the number of parts and the complexity of the mold, simplifies the assembly process of the product, improves the production efficiency and the product economy, reduces the production cost, simultaneously makes the caliber of the industrial plug connection place smaller, the overall structure more compact and small, realizes the light weight of the industrial plug, and is more flexible in use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an industrial plug perspective view of the embodiment of the utility model.

[0021] Figure 2 It is an industrial plug explosion view of the embodiment of the utility model.

[0022] Figure 3 It is an industrial plug side view of the embodiment of the utility model.

[0023] Figure 4 It is Figure 3 A-A section view of the embodiment of the utility model.

[0024] Figure 5 It is Figure 4 C part schematic view of the embodiment of the utility model.

[0025] Figure 6 It is Figure 3 B-B section view of the embodiment of the utility model.

[0026] Figure 7 It is Figure 6 D part schematic view of the embodiment of the utility model.

[0027] Figure 8 It is a plug sheath perspective view of the embodiment of the utility model.

[0028] Figure 9 It is a plug base perspective view of the embodiment of the utility model.

[0029] Figure 10 It is a plug core seat perspective view of the embodiment of the utility model.

[0030] Figure 11 It is a locking piece perspective view of the embodiment of the utility model. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model. Among them, the drawings are only used for illustrative description, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the utility model, some components in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.

[0032] In combination with the drawings Figure 1 to the drawings Figure 11 , the technical scheme of the utility model is an industrial plug convenient to assemble, which comprises plug sheath 1 and plug base 2 connected with each other, plug core holder 3 is connected in plug base 2, wiring plug core assembly 4 is connected on plug core holder 3, one end of plug sheath 1 close to plug base 2 is equipped with external thread connecting part 11, one side of external thread connecting part 11 is equipped with positioning step 12, plug base 2 comprises internal thread connecting part 21 and plug core holder connecting part 22, external thread connecting part 11 is connected with internal thread connecting part 21, the end face of internal thread connecting part 21 is equipped with pressing step 23, first sealing element 5 is connected between positioning step 12 and pressing step 23;Plug core holder 3 comprises plug core part 31 and positioning skirt 32 located at the outer periphery of plug core part 31, the center of plug core holder connecting part 22 is equipped with plug core via 24, the inner wall of plug core holder connecting part 22 is protruded to one side of plug core via 24 and forms clamping end 221, the outer periphery of plug core part 31 is recessed inward and forms clamping groove 311, plug core part 31 is connected in plug core via 24, clamping end 221 is connected in clamping groove 311, second sealing element 6 is connected between positioning skirt 32 and plug core holder connecting part 22.

[0033] In the embodiment, the industrial plug assembly mode is that wiring plug core assembly 4 is installed on plug core holder 3, then second sealing element 6 is sleeved on plug core holder 3, then plug core holder 3 is clamped on the plug core holder connecting part of plug base through the cooperation of clamping groove 311 and clamping end 221, at this time, second sealing element is pressed and connected at the connecting place of plug base and plug core holder, then first sealing element is sleeved on positioning step, plug base is connected on plug sheath through the cooperation of internal thread connecting part and external thread connecting part, at this time, first sealing element is pressed and connected at the connecting place of plug base and plug sheath, that is, the assembly of industrial plug is completed.

[0034] In the embodiment, the plug base 2 is the structure of the industrial plug and the industrial socket, and the terminal pin assembly 4 is the conductive part structure for realizing the electrical connection.

[0035] In the embodiment, the first seal 5 is arranged at the connection between the outer threaded connection part 11 and the inner threaded connection part 21, and the second seal 6 is arranged between the positioning skirt 32 and the terminal pin seat connection part 22. When the plug sheath 1 and the plug base 2 are screwed and connected, the positioning step 12 and the pressing step 23 press the first seal 5, forming a stable and reliable first waterproof and dustproof barrier. When the terminal pin seat 3 is connected in the terminal pin through hole 24, the clamping end 221 of the inner wall of the terminal pin seat connection part 22 abuts in the clamping groove 311 of the terminal pin part 31, forming an effective and reliable axial locking structure. At this time, the second seal 6 is pressed by the positioning skirt 32 and the terminal pin seat connection part 22, forming a stable and reliable second waterproof and dustproof barrier. The double sealing barrier ensures the sealing performance of the key connection of the industrial plug, effectively prevents the invasion of water and dust, and can meet the requirements of IP67 protection level.

[0036] In the embodiment, as shown in the attached Figure 7 and the attached Figure 8 , the first sealing groove 121 is arranged on the positioning step 12, the first sealing groove 121 is annular and distributed on the outer periphery of the outer threaded connection part 11, and the first seal 5 is connected in the first sealing groove 121. In another embodiment, the first sealing groove 121 can also be arranged on the pressing step 23.

[0037] In the embodiment, as shown in the attached Figure 7 and the attached Figure 10 , the second sealing groove 321 is arranged on the positioning skirt 32, the second sealing groove 321 is annular and distributed on the outer periphery of the terminal pin part 31, the second seal 6 is connected in the second sealing groove 321, and the second seal 6 is in contact with the end face of the terminal pin seat connection part 22.

[0038] In the embodiment, the first seal 5 and the second seal 6 are sealing rubber rings, which are made of neoprene or fluorine rubber. Both of them have good oil resistance, fuel resistance and chemical resistance, and have good elasticity, which can provide stable and reliable sealing pressure.

[0039] In the embodiment, when the industrial socket is assembled, the second seal 6 is sleeved in the second sealing groove 321, the terminal pin seat 3 is clamped into the plug base 2, then the first seal 5 is sleeved in the first sealing groove 121, and finally the plug sheath 1 and the plug base 2 are screwed and connected.

[0040] In the embodiment, as shown in the attachedFigure 4 and attached Figure 5 As shown in the attached

[0041] In the embodiment, as shown in the attached Figure 8 and attached Figure 11 As shown in the attached

[0042] In the embodiment, the action part 73 is a force receiving part for moving the locking piece 7.

[0043] In the embodiment, as shown in the attached Figure 8 and attached Figure 11 As shown in the attached

[0044] In the embodiment, as shown in the attached Figure 5 The first anti-disengagement part 133 is located on the path of the second anti-disengagement part 722 moving with the activity part 72, and the cooperation of the first anti-disengagement part 133 and the second anti-disengagement part 722 can prevent the locking piece 7 from disengaging from the plug sheath 1.

[0045] In the embodiment, as shown in the attached Figure 8As shown, the outer threaded connection part 11 is provided with a let channel 111 opposite the position of the first locking slot 13.

[0046] In the embodiment, as shown in the accompanying drawings, Figure 9 and the accompanying drawings, Figure 10 As shown, the clamping ends 221 are uniformly distributed on the inner wall of the plug core seat connecting part 22, the plug core part 31 is a regular polygon, and the plug core via hole 24 is also a regular polygon.

[0047] In the embodiment, the clamping groove 311 on the peripheral side of the plug core part 31 is matched with the clamping end 221 of the plug core seat connecting part 22.

[0048] In the embodiment, the plug sheath 1 and the plug base 2 are integrally injection molded.

[0049] The industrial plug convenient to assemble of the technical scheme cancels the independent clamping ring and the complex retreat-stop structure on the plug body, directly reduces the number of parts and the complexity of the mold, optimizes the internal sealing and fixing structure, simplifies the assembly process of the product, is convenient to assemble, improves the production efficiency and product economy, reduces the production cost, simultaneously makes the caliber of the industrial plug connection part can be designed to be smaller, the overall structure is more compact and small, realizes the lightweight of the industrial plug, and is more flexible to use.

[0050] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, or direct / indirect application in other related technical fields within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An industrial plug that is easy to assemble, comprising a plug sheath and a plug base that are interconnected, wherein a ferrule is connected within the plug base, and a wiring ferrule assembly is connected to the ferrule, characterized in that, The outer threaded connecting part of the plug sheath is provided with a positioning step on one side, the plug base comprises an inner threaded connecting part and a plug pin seat connecting part, the outer threaded connecting part is connected with the inner threaded connecting part, the end surface of the inner threaded connecting part is provided with a pressing step, and the first sealing element is connected between the positioning step and the pressing step; the plug pin seat comprises a plug pin part and a positioning skirt located on the outer periphery of the plug pin part, the center of the plug pin seat connecting part is provided with a plug pin through hole, the inner wall of the plug pin seat connecting part is protruded to one side of the plug pin through hole to form a clamping end, the outer periphery of the plug pin part is recessed inward to form a clamping groove, the plug pin part is connected in the plug pin through hole, the clamping end is connected in the clamping groove, and the second sealing element is connected between the positioning skirt and the plug pin seat connecting part.

2. An industrial plug for ease of assembly according to claim 1, wherein, The first sealing groove is arranged on the positioning step or the pressing step, the first sealing groove is annular and is distributed on the outer periphery of the outer threaded connecting part, and the first sealing element is connected in the first sealing groove.

3. An industrial plug for easy assembly according to claim 1, characterized in that The second sealing groove is arranged on the positioning skirt, the second sealing groove is annular and is distributed on the outer periphery of the plug pin part, and the second sealing element is connected in the second sealing groove and is attached to the end surface of the plug pin seat connecting part.

4. An industrial plug for ease of assembly according to claim 1, wherein, The side of the positioning step away from the plug base is provided with a first locking slot, the locking element is connected in the first locking slot, the second locking slot is arranged on the pressing step and faces the first locking slot, and the locking element comprises a locking part connected in the second locking slot.

5. An industrial plug for ease of assembly according to claim 4, wherein, The locking element comprises a movable part and an acting part, the movable part is connected in the first locking slot, the locking part and the acting part are respectively located at two ends of the movable part, the side surface of the movable part is provided with a positioning protrusion, the inner wall of the first locking slot is provided with a positioning groove, and the positioning protrusion is connected with the positioning groove in the moving direction of the movable part in the first locking slot.

6. An industrial plug for ease of assembly according to claim 5, wherein, The positioning groove comprises a first positioning groove and a second positioning groove, when the positioning protrusion is connected in the first positioning groove, the locking part is connected in the second locking slot, and when the positioning protrusion is connected in the second positioning groove, the locking part is not connected in the second locking slot.

7. An industrial plug for ease of assembly according to claim 5, wherein, The first anti-disengagement part is arranged in the first locking slot, the bottom surface of the movable part is provided with a second anti-disengagement part, and the first anti-disengagement part is located on the path of the second anti-disengagement part moving with the movable part.

8. An industrial plug for ease of assembly according to claim 4, wherein, The outer threaded connecting part is provided with a clearance passage opposite the first locking slot.

9. An industrial plug for ease of assembly according to any one of claims 1 to 8, wherein, The clamping ends are uniformly distributed on the inner wall of the plug pin seat connecting part.

10. An industrial plug for ease of assembly according to any one of claims 1 to 8, wherein, The plug sheath and the plug base are integrally formed.

Images