Connecting piece and connector

Abstract

The utility model discloses a connecting piece in the field of connectors, the connecting piece comprises an axially mounted end handle, a mounting sleeve and a plug bush part, the plug bush part is sleeved outside the mounting sleeve, and the plug bush part is fixed in a cavity of the end handle; wherein a detachable guide plate is installed in a cavity of the plug bush part, a first through hole is formed in the guide plate, a second through hole is formed in the mounting sleeve in the axial direction, the first through hole corresponds to the second through hole, and a guide structure is arranged on the side, away from the second through hole, of the first through hole and used for excessive plug-in of a plug pin; according to the connecting piece, the guide plate is mounted at the end part of the plug bush part, so that when the connecting piece is used, a pin in a plug can smoothly and accurately enter the first through hole and the second through hole under the guidance of the guide structure, and is accurately matched with a jack in the second through hole; even under the condition of blind insertion, accurate centering insertion is achieved, the guiding function of the connecting piece is optimized, and automatic centering is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of connector design, in particular to a connecting piece and a connector. BACKGROUND

[0002] The existing circular intermediate connector connection mode is mainly a spiral groove type, and a plug and a socket are both provided with an insulating plate and are widely applied to various industrial and traffic projects and can be used for speed sensors and rescue connectors. Since the structural gap is large, the plug pin shakes greatly in the use process, the risk of deviating from the jack and abutting against the inner wall of the insulating plate may occur, the core piece is subjected to a force exceeding the standard bearing force, and the phenomenon of pin withdrawal occurs; in addition, in the actual use scene, the circular intermediate connector is usually installed at the bottom of a vehicle, which limits the operation space and the field of vision, and the staff installs and dismounts by using a force exceeding the bearing force of the core piece in the use process, and the blind plugging is another cause of pin withdrawal; how to realize the quick and stable connection of the plug and the socket is a problem to be solved. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a connecting piece and a connector to solve the defect that the plug pin is prone to withdrawal in the connection of the plug pin in the prior art.

[0004] To achieve the above-mentioned purpose, the application adopts the following technical scheme:

[0005] In a first aspect, the application discloses a connecting piece, which comprises an axial installation end handle, an installation sleeve and a plug sleeve part, the plug sleeve part is sleeved outside the installation sleeve, and the plug sleeve part is fixed in a cavity of the end handle;

[0006] A detachable guide plate is installed in the cavity of the plug sleeve part, a first through hole is arranged on the guide plate, an axial direction of the installation sleeve is provided with a second through hole, the first through hole and the second through hole are arranged in correspondence, and a guide structure is arranged on the side of the first through hole away from the second through hole, so as to realize the excessive plug connection of the plug pin.

[0007] In a further aspect of the application, a fastening structure is arranged between the guide plate and the plug sleeve part, the fastening structure comprises a limiting protruding rib and a limiting groove, the limiting protruding rib is fixed on the outer periphery of the guide plate, the limiting groove is arranged on the inner wall of the plug sleeve part, and the limiting protruding rib is pressed into the limiting groove.

[0008] In a further aspect of the application, a first positioning assembly is arranged between the plug sleeve part and the installation sleeve, the first positioning assembly comprises a first positioning port and a first positioning protrusion, the first positioning port is arranged on the radial outer periphery of the installation sleeve, the first positioning protrusion is arranged on the inner wall of the cavity of the plug sleeve part, and the first positioning protrusion is arranged in the first positioning port to realize the cooperation positioning.

[0009] Further, the second positioning assembly between the guide plate and the sleeve part includes a second positioning hole and a second positioning protrusion, the second positioning protrusion is arranged on the radial outer periphery of the guide plate, the second positioning hole is arranged on the end surface of the sleeve part facing the guide plate, and the second positioning protrusion is arranged in the second positioning hole to achieve cooperative positioning.

[0010] Further, the guide plate is further provided with a notch, and the notch is matched with the first positioning hole in position.

[0011] Further, the guide plate is further provided with a notch, and the notch is matched with the first positioning hole in position.

[0012] Further, the first through hole is provided with a hollow positioning platform, the outer edge of the end surface of the positioning platform is chamfered, the positioning platform is arranged opposite to the guide structure, and the second through hole is provided with an inner edge, and the positioning platform contacts the inner edge.

[0013] Further, the guide plate is detachably mounted at the end of the sleeve part, and the end surface of the guide plate is flush with the sleeve part.

[0014] In a second aspect, the application discloses a connector, which comprises the connecting piece and a plug, and the guide structure on the guide plate is used to limit the insertion of the pin in the plug and accurately connect the jack in the connecting piece.

[0015] The application has the following beneficial effects:

[0016] The connecting piece is provided with a guide plate at the end of the sleeve part, when in use, the pin in the plug can be smoothly and accurately guided into the first through hole and the second through hole under the guidance of the guide structure, and the pin can be accurately matched with the jack in the second through hole; even in the case of blind insertion, the pin can be accurately inserted, the guide function of the connecting piece is optimized, and automatic centering is realized.

[0017] The second positioning hole and the second positioning protrusion are further arranged in the connecting piece, when the guide plate is mounted, the guide plate is mounted in a specific direction, the first through hole and the second through hole are quickly matched, and the production speed is increased.

[0018] In addition, the notch of the guide plate is matched with the long slot in the sleeve part in position, the guide plate can be easily disassembled by using a pointed flat head tool, and the parts of the connecting piece are convenient to maintain and replace. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is an exploded schematic view of the connecting piece in the embodiment of the application;

[0020] Figure 2Figure 1 is a schematic view of the structure of one side of a guide plate in an embodiment of the present application.

[0021] Figure 3 Figure 2 is a schematic view of the structure of the other side of a guide plate in an embodiment of the present application.

[0022] Figure 4 Figure 3 is a schematic view of the structure of a plug-in sleeve in an embodiment of the present application.

[0023] Figure 5 Figure 4 is a schematic view of the structure of the end of a mounting sleeve in an embodiment of the present application.

[0024] Figure 6 Figure 5 is an axial sectional view of a connecting piece in an embodiment of the present application.

[0025] Wherein:

[0026] 1, end handle; 2, mounting sleeve; 3, plug-in sleeve; 4, guide plate; 5, clamp spring; 21, first positioning port; 31, second positioning port; 32, limiting groove; 33, first positioning protrusion; 34, long slot; 41, second positioning protrusion; 42, guide structure; 43, notch; 44, positioning table; 45, limiting protrusion; 200, second through hole; 400, first through hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, not as any limitation on the present application and its application or use. Embodiment one

[0028] As shown in Figure 1 the present embodiment discloses a connecting piece, which includes an axially mounted end handle 1, a mounting sleeve 2 (made of insulating material) and a plug-in sleeve 3, the plug-in sleeve 3 is sleeved outside the mounting sleeve 2, and the plug-in sleeve 3 is fixed in the cavity of the end handle 1; wherein a detachable guide plate 4 is installed in the cavity of the plug-in sleeve 3, the guide plate 4 is provided with a first through hole 400, the end of the mounting sleeve 2 is provided with a second through hole 200, the first through hole 400 and the second through hole 200 are correspondingly arranged, the side of the first through hole 400 away from the second through hole 200 is provided with a guide structure 42, which is used for plug-in transition of a pin.

[0029] The guide structure 42 in the embodiment is actually a tapered chamfer arranged in the first through hole 400, and the outer diameter of the tapered chamfer is larger than the inner diameter. In use, if the pin is not aligned with the center and deviates by a certain angle, the pin will fall into the tapered chamfer and move along the slope to be connected, which is a humanized design and realizes the centering connection of the pin of the plug and the socket in the connecting piece (the socket here is used for connecting the pin to transmit electrical signals, which is omitted in the drawings) to avoid the pin from being withdrawn.

[0030] As shown in the accompanying Figure 3 and Figure 4 , the fastening structure is arranged between the guide plate 4 and the sleeve part 3 in the embodiment, which is used for stable connection between the guide plate 4 and the sleeve part 3. The fastening structure includes three limiting protrusions 45 and limiting grooves 32. The three limiting protrusions 45 are fixed on the outer circumferential surface of the guide plate 4, and the limiting grooves 32 are arranged on the inner wall of the sleeve part 3. The limiting grooves 32 are arranged in a circle on the inner wall of the sleeve part 3 and surround the inner wall. When the guide plate 4 is installed, the limiting protrusions 45 are pressed into the limiting grooves 32 to complete the close fixing of the two. In some embodiments, the three limiting protrusions 45 are arranged at equal angles on the outer periphery of the guide plate 4 to increase the fixing points and ensure that the stress on the guide plate 4 after connection is as uniform as possible.

[0031] In further embodiments, the first positioning assembly is arranged between the sleeve part 3 and the mounting sleeve 2, and the second positioning assembly is arranged between the guide plate 4 and the sleeve part 3. In actual production, a plurality of first through holes 400 and a plurality of second through holes 200 are arranged. The first positioning assembly is used for fixing the mounting sleeve 2 at a certain angle. After the mounting sleeve 2 is fixed, the plurality of first through holes 400 on the guide plate 4 need to be corresponded with the plurality of second through holes 200 on the mounting sleeve 2. The arrangement of the second positioning assembly effectively helps the quick correspondence of the two groups of through holes. Generally, the first positioning assembly includes a first positioning opening 21 and a first positioning protrusion 33. The first positioning opening 21 is arranged on the radial outer periphery of the mounting sleeve 2, and the first positioning protrusion 33 is arranged on the inner wall of the cavity of the sleeve part 3. The first positioning protrusion 33 is arranged in the first positioning opening 21 to realize positioning. At this time, the position of the second through hole 200 is determined.

[0032] As shown in the accompanying Figure 2 and Figure 4 , the second positioning assembly will be described below. Generally, the second positioning assembly includes a second positioning opening 31 and a second positioning protrusion 41. The second positioning protrusion 41 is arranged on the radial outer periphery of the guide plate 4, and the second positioning opening 31 is arranged on the end face of the sleeve part 3 facing the guide plate 4. The second positioning protrusion 41 is arranged in the second positioning opening 31 to realize positioning. In actual production, the positions of the second positioning opening 31 and the second positioning protrusion 41 are determined according to the radial matching direction of the two groups of through holes.

[0033] In combination with the accompanying Figure 6, the first positioning assembly is used to fix the sleeve part 3 and the mounting sleeve 2, the flange outside the sleeve part 3 is fixed in the mounting groove of the end handle 1, the sleeve part 3 and the mounting sleeve 2 and the end handle 1 are fixed, and some schemes are provided with threads on the surface of the sleeve part 3, the sleeve part 3 and the end handle 1 are fixed in a threaded mode, or even fixed in an injection mode, and the connection relationship of these components belongs to the prior art and will not be described here.

[0034] It is to be mentioned here that the guide plate 4 in the embodiment can be disassembled, and when the guide plate 4 is installed, the end surface of the guide plate 4 is flush with the sleeve part 3 or slightly sunken, in order to facilitate disassembly of the guide plate 4 and maintenance of the connecting piece, the guide plate 4 is further provided with notches 43, the position of the long slot 34 on the sleeve part 3 corresponds to the position of the notches 43 after installation of the guide plate 4, so that the guide plate 4 can be easily disassembled by using a pointed flat head tool, and the notches 43 correspond to the first positioning port 21 and are provided with three notches 43, which are radially arranged at equal angles on the edge of the guide plate 4, and in a further design scheme, a step is directly formed on the outer ring of the guide plate 4, so that the guide plate 4 can be disassembled from the long slot 34 on the sleeve part 3 regardless of the installation angle of the guide plate.

[0035] In a further embodiment, in order to better realize the corresponding connection of the first through hole 400 and the second through hole 200, as shown in FIG. 6, the first through hole 400 is provided with a hollow positioning platform 44 at the position of the first through hole 400, and the outer edge of the end surface of the positioning platform 44 is provided with a rounded corner, and the positioning platform 44 can be a center convex platform integrally connected in the first through hole 400, and the rounded corner is arranged on the end surface of the center convex platform, and the center convex platform, the first through hole 400 and the center point of the first through hole 400 are arranged on the same straight line after assembly of the connecting piece, the positioning platform 44 is arranged opposite to the guide structure 42, the second through hole 200 is provided with an inner edge, and the positioning platform 44 contacts the inner edge to limit the position of the positioning platform 44. Figure 2 and Figure 4 In a further embodiment, in order to better realize the corresponding connection of the first through hole 400 and the second through hole 200, as shown in FIG. 6, the first through hole 400 is provided with a hollow positioning platform 44 at the position of the first through hole 400, and the outer edge of the end surface of the positioning platform 44 is provided with a rounded corner, and the positioning platform 44 can be a center convex platform integrally connected in the first through hole 400, and the rounded corner is arranged on the end surface of the center convex platform, and the center convex platform, the first through hole 400 and the center point of the first through hole 400 are arranged on the same straight line after assembly of the connecting piece, the positioning platform 44 is arranged opposite to the guide structure 42, the second through hole 200 is provided with an inner edge, and the positioning platform 44 contacts the inner edge to limit the position of the positioning platform 44. Embodiment two

[0036] The connecting piece in the embodiment is disclosed, and the connector further comprises a plug, the guide structure 42 on the guide plate 4 is used to limit the insertion of the plug pin in the plug, and the plug pin is accurately inserted into the jack in the connecting piece.

[0037] In specific use, the connecting piece in the embodiment can be regarded as a socket, and the guide plate 4 is integrated with the mounting sleeve 2. A guide structure 42 (tapered chamfer) is designed at the front end of the guide plate 4, which plays a guiding role in the process of inserting the pin. The pin on the plug can quickly and accurately pass through the first through hole 400, the second through hole 200 and finally enter the socket. At the same time, the protruding ribs on the plug and the long slot 34 on the sleeve part 3 are extruded and matched to realize the fixation of the two. Even in the case of blind insertion, the pin can be automatically and smoothly guided to the center position of the socket, so as to realize accurate centering and insertion and avoid the phenomenon of pin retreat caused by pin deviation.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0039] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

Claims

1. A connection, characterized in that The connecting piece comprises an axially mounted end handle (1), a mounting sleeve (2), and a sleeve part (3) sleeved outside the mounting sleeve (2), and the sleeve part (3) is fixed in the cavity of the end handle (1); A detachable guide plate (4) is mounted in the cavity of the sleeve part (3), the guide plate (4) is provided with a first through hole (400), the mounting sleeve (2) is axially provided with a second through hole (200), the first through hole (400) and the second through hole (200) are correspondingly arranged, and a guide structure (42) is arranged on the side of the first through hole (400) away from the second through hole (200) to prevent the pin from being excessively inserted.

2. The connection of claim 1, wherein A fastening structure is arranged between the guide plate (4) and the sleeve part (3), the fastening structure comprises a limiting protruding rib (45) and a limiting groove (32), the limiting protruding rib (45) is fixed on the outer periphery of the guide plate (4), the limiting groove (32) is arranged on the inner wall of the sleeve part (3), and the limiting protruding rib (45) is pressed into the limiting groove (32).

3. The connection of claim 1, wherein A first positioning assembly is arranged between the sleeve part (3) and the mounting sleeve (2), the first positioning assembly comprises a first positioning opening (21) and a first positioning protrusion (33), the first positioning opening (21) is arranged on the radial outer periphery of the mounting sleeve (2), the first positioning protrusion (33) is arranged on the inner wall of the cavity of the sleeve part (3), and the first positioning protrusion (33) is arranged in the first positioning opening (21) to realize cooperative positioning.

4. The connection of claim 1, wherein A second positioning assembly is arranged between the guide plate (4) and the sleeve part (3), the second positioning assembly comprises a second positioning opening (31) and a second positioning protrusion (41), the second positioning protrusion (41) is arranged on the radial outer periphery of the guide plate (4), the second positioning opening (31) is arranged on the end face of the sleeve part (3) facing the guide plate (4), and the second positioning protrusion (41) is arranged in the second positioning opening (31) to realize cooperative positioning.

5. The connection of claim 3, wherein The guide plate (4) is further provided with a notch (43), and the notch (43) is positionally matched with a long slot (34) on the sleeve part (3).

6. The connection of claim 5, wherein The notch (43) is a plurality of notches, and the plurality of notches are radially arranged at equal angles on the edge of the guide plate (4).

7. The connection of claim 1, wherein A hollow positioning table (44) is arranged at the first through hole (400), the outer edge of the end face of the positioning table (44) is chamfered, the positioning table (44) is arranged opposite to the guide structure (42), an inner edge is arranged in the second through hole (200), and the positioning table (44) contacts the inner edge.

8. The connection of claim 1, wherein The guide plate (4) is detachably mounted at the end of the sleeve part (3), and the end face of the guide plate (4) is flush with the sleeve part (3).

9. A connector characterized by comprising: The connecting piece comprises any one of claims 1 to 8. The connecting piece comprises any one of claims 1 to 8.

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