Plug

Abstract

The utility model relates to the technical field of electrical plugs, in particular to a hydropower station water turbine governor servo proportional valve electrical plug capable of being used bidirectionally, which comprises a plug-in component, a plug-in component, a plug-in component, a plug-in component, a plug-in component, a plug-in component, a plug-in component, a plug-in component, a plug-in component, a plug-in component, a plug-in component, a plug-in component and a plug-in component, and the quick release assembly is arranged on the outer side of the connection shell and comprises a connection plug arranged on the outer side of the connection shell, a cable plug movably connected with the connection plug and a quick release piece arranged between the connection plug and the cable plug. The beneficial effects of the utility model are that through the arrangement of the plugging assembly and the quick release assembly, the position offset of the conductive pinhole tube can be prevented, the connection space between the conductive pinhole tube and a signal cable is increased, the poor contact of the conductive pinhole tube is prevented, and the inspection and maintenance of workers are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical plugs, in particular to an electrical plug for a servo proportional valve of a turbine speed regulator of a hydropower station which can be used in both directions. Background Art

[0002] Whether the automatic control system of the turbine speed governor of a hydropower station can operate normally and stably plays a vital role in the safety and stability of the hydropower station. The servo proportional valve, as the electro-hydraulic converter of the turbine speed governor, is the core component of the speed governor automatic control system. It controls the flow direction and flow of the hydraulic control system of the speed governor in real time according to the current signal output by the speed governor automatic control system, thereby controlling the opening and closing of the turbine guide vanes. The servo proportional valve is often connected to the external electrical circuit cable through an electrical plug. At present, the commonly used servo proportional valve wiring on site is 7. The conductive metal pinhole tube of the electrical plug is embedded in the insulating material inside the electrical plug. One end is connected to the pin of the servo proportional valve, and the other end is connected to the external signal cable.

[0003] However, the space at the connection between the electrical plug and the signal cable is small, and there are hidden dangers of stress, extrusion, short circuit, and false connection at the connection. At the same time, the conductive pinhole tube inside the plug will be offset due to the stress when connecting the proportional valve, resulting in poor contact of the control circuit and distortion of the control signal. It is also inconvenient for maintenance personnel to inspect and maintain the electrical plug. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems in the above or prior art such as deviation of the conductive pinhole tube, inconvenient maintenance, small space at the connection between the signal cable and the electrical plug, and unstable connection of the signal cable, the present utility model is proposed.

[0006] Therefore, an object of the present invention is to provide a plug.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a plug, comprising a plug-in assembly, including a connecting shell, two groups of connecting parts arranged on both sides of the connecting shell, and a protective part arranged on the outside of the connecting parts; and a quick-release assembly, which is arranged on the outside of the connecting shell, including a connecting plug arranged on the outside of the connecting shell, a cable plug movably connected to the connecting plug, and a quick-release part arranged between the connecting plug and the cable plug.

[0008] As a preferred solution of the plug of the utility model, wherein: the connecting member includes no less than two groups of pin slots arranged on the side of the connecting shell, and a pin hole tube arranged inside the pin slot; wherein the pin hole tube is arranged in the two corresponding groups of pin slots in the two groups of connecting members.

[0009] As a preferred solution of the plug of the utility model, the protective member includes a protective base fixedly arranged on the side of the connecting shell, a protective sleeve threadedly connected to the protective base, and an insulating protective pad arranged at the end of the protective base.

[0010] As a preferred solution of the plug of the utility model, a top cover is arranged at the end of the protective sleeve, and an anti-slip groove is arranged on the side of the top cover.

[0011] As a preferred solution of the plug of the utility model, the plug assembly further includes a protection member movably connected to the protection member, and a positioning member arranged on the connection housing.

[0012] As a preferred solution of the plug of the utility model, the protective member includes a protective sleeve movably connected to the protective sleeve, and an anti-slip ring arranged on the top of the protective sleeve.

[0013] As a preferred solution of the plug of the utility model, the positioning member includes two sets of first universal connecting buckles arranged on the connecting shell, a second universal connecting buckle arranged on the top cover, a third universal connecting buckle arranged on the anti-slip ring, and a connecting soft rope arranged on the first universal connecting buckle, the second universal connecting buckle, and the third universal connecting buckle.

[0014] As a preferred solution of the plug of the utility model, the quick-release part includes two groups of connection grooves arranged on the connection plug, a quick-release rod arranged on the cable plug and matching the connection grooves, and a fixing block arranged at the end of the quick-release rod; wherein the connection plug is electrically connected to the pinhole tube.

[0015] As a preferred solution of the plug of the utility model, the connecting groove includes a circular groove arranged at the end of the connecting plug, and a positioning groove arranged at the end of the connecting plug and connected to the circular groove.

[0016] As a preferred solution of the plug of the utility model, the side edge of the protective base is provided with anti-slip grooves.

[0017] The beneficial effects of the utility model: the utility model can prevent the conductive pinhole tube from being displaced by arranging the plug-in assembly and the quick-release assembly, increase the connection space with the signal cable, prevent poor contact, and facilitate inspection and maintenance by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the connecting piece in the utility model.

[0021] Figure 3 It is a structural schematic diagram of the insulating protection pad in the utility model.

[0022] Figure 4 It is a structural schematic diagram of the quick-release assembly in the utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the connecting plug and the cable plug in the utility model DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1

[0028] Reference Figure 1, which is the first embodiment of the utility model. This embodiment provides a plug that can prevent the conductive pinhole tube from being offset and the circuit from being in poor contact, and facilitates inspection and maintenance. It includes a plug-in component 100 and a quick-release component 200. By setting the plug-in component 100, the conductive pinhole tube can be fixed to prevent it from being offset, and poor circuit contact and control signal distortion can be avoided. The quick-release component 200 is set in the middle of the plug-in component 100 to increase the space at the connection between the electrical plug and the signal cable, and prevent the connection from being stressed, squeezed, short-circuited, or falsely connected.

[0029] Specifically, the plug assembly 100 includes a connecting shell 101, two groups of connectors 102 arranged on both sides of the connecting shell 101, and a protective member 103 arranged on the outside of the connector 102; when in use, the proportional valve wiring is connected to one of the connectors 102, and both connectors 102 can be connected to the proportional valve wiring. When in use, only one end is connected. When one of the connectors 102 is damaged, the other end can continue to be used, thereby improving the utilization rate and reliability of the electrical plug. The protective member 103 is used to protect the connector 102. When in use, the protective member 103 can be removed. After use, it can be reinstalled on the connecting shell 101 to protect the connector 102 to prevent the conductive pinhole tube in the connector 102 from shifting.

[0030] Further, the quick release assembly 200 is arranged on the outside of the connection housing 101, and includes a connection plug 201 arranged on the outside of the connection housing 101, a cable plug 202 movably connected to the connection plug 201, and a quick release member 203 arranged between the connection plug 201 and the cable plug 202. The connection plug 201 is used to connect with the cable plug 202 of the signal cable, and the quick release member 203 is used to fix the connection plug 201 and the cable plug 202 to prevent them from falling off, so that they are connected more firmly and prevent them from being falsely connected.

[0031] Operation process: When in use, remove the protective piece 103, connect the proportional valve wiring to the connector 102, and then connect the cable connector 202 of the signal cable to the connecting plug 201. When it is necessary to inspect the connector 102 and the proportional valve wiring, remove the protective piece 103 on the outside of the unused connector 102 at the other end of the connecting housing 101, and then use a flashlight to observe their connection conditions, so that maintenance personnel can check and maintain the electrical plug.

[0032] In summary, by providing the plug-in assembly 100 and the quick-connect assembly 200, it is possible to prevent the electrical plug from being loosely connected with the signal cable, prevent the conductive pinhole tube from being displaced, avoid poor contact of the control circuit and signal distortion, and facilitate maintenance of the electrical plug.

[0033] Example 2

[0034] Reference Figure 2 , 3 , which is the second embodiment of the utility model. Different from the previous embodiment, this embodiment provides a further optimization of the plug, solves the problem of conductive pinhole tube offset and inconvenient inspection and maintenance, and includes the connector 102 including no less than two groups of pin slots 102a arranged on the side of the connecting shell 101, and a pinhole tube 102b arranged inside the pin slots 102a; wherein the pinhole tube 102b is arranged in two corresponding groups of pin slots 102a in the two groups of connectors 102. In the utility model, 7 groups of pin slots 102 are arranged in the connector 102, and the pinhole tube 102b is embedded in the insulating material inside the electrical plug 102, and the pin slot 102 and the pinhole tube 102b are connected to the proportional valve wiring. Connectors 102 are arranged on both sides of the connecting shell 101, and the internal pinhole tube 102b passes through the two connectors 102, that is, the two connectors 102 use the same group of pinhole tubes 102b. The interior of the connector 102 at one end can be observed through the connector 102 at the other end, which facilitates inspection and maintenance of the electrical plug.

[0035] Furthermore, the protective member 103 includes a protective base 103a fixedly arranged on the side of the connecting shell 101, a protective sleeve 103b threadedly connected to the protective base 103a, and an insulating protective pad 103c arranged at the end of the protective base 103a. When the electrical plug is not in use, the protective member 102 is installed on the side of the connecting shell 101. When in use, the protective member 102 at the used end needs to be removed. When it is necessary to observe the connection between the connector 102 and the proportional valve wiring during use, the protective member 102 at the unused end is removed, and the inside of the pin hole tube 102b is observed by turning on a light. After being used for a long period of time, the pin hole tube 102b will have a positional displacement and shrink into the pin slot 102, resulting in poor contact of its control circuit. Therefore, an insulating protective pad 103c is arranged at the end of the protective member 103, which can be tightly attached to the end of the pin hole tube 102b, hold it against it, and prevent it from moving and deviating into the pin slot 102.

[0036] The end of the protective sleeve 103b is provided with a top cover 103b-1, and the side of the top cover 103b-1 is provided with an anti-skid groove 103b-2. The top cover 103b-1 and the anti-skid groove 103b-2 provided at the end of the protective sleeve 103b can facilitate the removal of the protective member 103 to prevent it from slipping.

[0037] Furthermore, the plug assembly 100 further includes a protective member 300 movably connected to the protective member, and a positioning member 400 disposed on the connection housing 101. The protective member 300 is used to place the removed protective member 103, the protective sleeve 103b of the protective member 103 is installed on the conical elastic insulating protective sleeve, and the positioning member 400 above is used to connect the protective member 300 to the connection housing 101 to prevent it from being lost.

[0038] Preferably, the protective member 300 includes a protective sleeve 301 movably connected to the protective sleeve 103b, and an anti-slip ring 302 arranged at the top of the protective sleeve 301. When in use, the protective sleeve 103b is placed inside the protective sleeve 301, and the protective sleeve 301 is a conical elastic insulating protective sleeve. The anti-slip ring 302 is used to support the protective sleeve 103b, and an anti-slip groove is arranged on its outer side, which can facilitate the placement and removal of the protective member 103.

[0039] Specifically, the positioning member 400 includes two sets of first universal connection buckles 401 arranged on the connection housing 101, a second universal connection buckle 402 arranged on the top cover 103b-1, a third universal connection buckle 403 arranged on the anti-slip ring 302, and a connection soft rope 404 arranged on the first universal connection buckle 401, the second universal connection buckle 402, and the third universal connection buckle 403. The positioning member 400 is used to connect the connection housing 101, the protective member 103, and the protective member 300 together to prevent the protective member 103 and the protective member 300 from being lost, and they are connected by the universal connection buckle and the connection soft rope.

[0040] Furthermore, the side of the protective base 103a is provided with anti-skid patterns 103a-1. The anti-skid patterns 103a-1 are used to facilitate the removal and installation of the protective member 103, increase the friction between the protective member 103 and the hand, and prevent slipping during the installation process.

[0041] Operation process: When the connector 102 needs to be used, remove the protective sleeve 103b, place it in the protective sleeve 301, and then connect the wiring of the proportional valve to the pinhole tube 102b. During use, the insulating protective pad 103c at the end of the protective sleeve at the unconnected end of the connector 102 abuts against the pinhole tube 102b, which can effectively prevent the position of the pinhole tube 102b from being offset. At the same time, the connection between the proportional valve and the electrical plug can be observed through the unconnected end, which is convenient for inspection and maintenance.

[0042] In summary, by providing the connecting piece 102 and the protective piece 103, the pinhole tube 102b can be effectively prevented from being offset, thereby preventing poor contact of the circuit, and at the same time, the electrical plug can be easily inspected and repaired.

[0043] Example 3

[0044] Reference Figure 4 , 5 , which is the third embodiment of the utility model. Different from the previous embodiment, this embodiment provides a plug to solve the problem of small space for connecting the electrical plug and the signal cable. The quick release part 203 includes two groups of connection grooves 203a arranged on the connection plug 201, a quick release rod 203b arranged on the cable plug 202 and matching the connection grooves 203a, and a fixing block 203c arranged at the end of the quick release rod 203b; wherein, the connection plug 201 is electrically connected to the pinhole tube 102b. In the utility model, the plug for connecting the electrical plug to the signal cable is arranged in the middle of the connecting housing 101, which increases the space at the connection and can effectively prevent the connection from being stressed, squeezed, or short-circuited. When in use, align the quick release rod 203b on the cable plug 202 with the connection groove 203a on the connection plug 201 and insert it, and then rotate the cable plug 202 to fix it. When disassembly is required, the cable plug 202 is rotated in the opposite direction and pulled out to be removed.

[0045] Specifically, the connection groove 203a includes a circular groove 203a-1 provided at the end of the connection plug 201, and a positioning groove 203a-2 provided at the end of the connection plug 201 and connected to the circular groove 203a-1. When connecting the cable plug 202, the quick release rod 203b and the fixing block 203c need to be aligned and inserted into the circular groove 203a-1, so that the fixing block 203c passes through the circular groove 203a-1, and the surface of one end of the fixing block 203c close to the cable plug 202 is close to the outer surface of the bottom end of the circular groove 203a-1, and then the cable plug 202 is rotated, so that the quick release rod 203b rotates to the end along the positioning groove 203a-2, and the fixing block 203a-2 fixes the cable plug 202 and the connection plug 201 together.

[0046] In summary, by providing the quick release member 203 and the connection plug 201, the connection space with the signal cable can be increased, and the connection between the cable plug 202 and the connection plug 201 can be made more firmly to prevent a false connection.

[0047] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0049] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A plug, characterized in that: include, A plug-in assembly (100) comprises a connection housing (101), two groups of connection pieces (102) arranged on both sides of the connection housing (101), and a protective piece (103) arranged outside the connection pieces (102); and, A quick-release assembly (200) is arranged outside the connecting shell (101), comprising a connecting plug (201) arranged outside the connecting shell (101), a cable plug (202) movably connected to the connecting plug (201), and a quick-release piece (203) arranged between the connecting plug (201) and the cable plug (202).

2. The plug according to claim 1, characterized in that: The connecting member (102) comprises at least two groups of pin slots (102a) arranged on the side of the connecting shell (101), and a pin hole tube (102b) arranged inside the pin slots (102a); Wherein, the pin hole tube (102b) is arranged in two corresponding groups of pin slots (102a) in two groups of connecting members (102).

3. The plug according to claim 1, characterized in that: The protective member (103) comprises a protective base (103a) fixedly arranged on the side of the connecting shell (101), a protective sleeve (103b) threadedly connected to the protective base (103a), and an insulating protective pad (103c) arranged at the end of the protective base (103a).

4. The plug according to claim 3, characterized in that: A top cover (103b-1) is provided at the end of the protective sleeve (103b), and an anti-slip groove (103b-2) is provided on the side of the top cover (103b-1).

5. The plug according to claim 1, characterized in that: The plug-in assembly (100) further comprises a protection piece (300) movably connected to the protection piece, and a positioning piece (400) arranged on the connection housing (101).

6. The plug according to claim 5, characterized in that: The protective member (300) comprises a protective sleeve (301) movably connected to the protective sleeve (103b), and an anti-slip ring (302) arranged at the top of the protective sleeve (301).

7. The plug according to claim 6, characterized in that: The positioning member (400) comprises two sets of first universal connecting buckles (401) arranged on the connecting housing (101), a second universal connecting buckle (402) arranged on the top cover (103b-1), a third universal connecting buckle (403) arranged on the anti-slip ring (302), and a connecting soft rope (404) arranged on the first universal connecting buckle (401), the second universal connecting buckle (402), and the third universal connecting buckle (403).

8. The plug according to claim 2, characterized in that: The quick-release component (203) comprises two groups of connection grooves (203a) arranged on the connection plug (201), a quick-release rod (203b) arranged on the cable plug (202) and matching the connection grooves (203a), and a fixing block (203c) arranged at the end of the quick-release rod (203b); Wherein, the connection plug (201) is electrically connected to the pinhole tube (102b).

9. The plug according to claim 8, characterized in that: The connection groove (203a) comprises a circular groove (203a-1) arranged at the end of the connection plug (201), and a positioning groove (203a-2) arranged at the end of the connection plug (201) and connected to the circular groove (203a-1).

10. The plug according to claim 3, characterized in that: The side edge of the protective base (103a) is provided with anti-slip grooves (103a-1).

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