Terminal Block Base and Terminal Blocks

Abstract

The present application relates to the technical field of electrical equipment connection, and provides a terminal base and a terminal. The terminal base includes a base and a screw structure. The base is provided with a mounting hole, and a threaded connector is arranged at the orifice end of the mounting hole. The screw structure includes a head and a rod body. The rod body is provided with a first thread segment and a second thread segment in sequence and at intervals along the axial direction, and the first thread segment is close to the head. The first thread segment is threadedly connected to the threaded connector so that the second thread segment is inserted into the mounting hole. In the terminal base provided by the embodiment of the present application, the probability that the screw rod portion will slip and the second thread segment and the threaded connector will be threaded together by themselves is low, that is, the probability that the second thread segment passes through the threaded connector and falls off is low, so that the probability that the screw structure falls off the base is also low, thereby effectively avoiding the operation of picking up the screw structure during installation, and effectively improving work efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment connection, and in particular provides a terminal block base and a terminal block. Background Art

[0002] The wiring terminals on electrical equipment are fixed with screws to connect the wires; however, the screws of the wiring terminals currently on the market are easy to fall off when the base is wired, which requires the installer to pick them up, affecting work efficiency; especially during the wiring process, installers often find it difficult to grasp the degree of loosening of the screws, which can easily cause the screws to completely loosen and fall off. Reinstallation requires manual adjustment of the screw position to align with the threaded opening, which brings trouble and distress to the staff and seriously affects work efficiency. After wiring, there is a risk of the screws falling off, which in turn poses a hidden danger of electrical accidents. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a terminal block base and a terminal block, aiming to solve the problem that the screws on the base of the terminal block in the related art are easy to fall off.

[0004] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:

[0005] In a first aspect, an embodiment of the present application provides a terminal base, comprising a base and a screw structure, wherein a mounting hole is provided on the base, a threaded connector is provided at the orifice end of the mounting hole, and the threaded connector has an internal thread; the screw structure comprises a head and a rod body portion connected to the head, the rod body portion is provided with a first thread segment and a second thread segment in sequence and spaced apart along the axial direction, and the first thread segment is close to the head; wherein the first thread segment and the second thread segment are respectively threadedly matched with the threaded connector, and the first thread segment is threadedly connected to the threaded connector so that the second thread segment is inserted into the mounting hole.

[0006] The beneficial effects of the embodiments of the present application: the terminal base provided by the embodiments of the present application, by arranging the first thread segment and the second thread segment in sequence along the axial direction on the rod body of the screw structure, during assembly, the first thread segment close to the head can be screwed onto the threaded connector, so that the second thread segment can be inserted into the mounting hole; when the screw structure has a tendency to loosen, even if the first thread segment and the threaded connector loosen and cause separation, in the process of the screw rod part being separated from the mounting hole, there is no thread structure between the first thread segment and the second thread segment of the screw rod part. Therefore, the probability that the screw rod part will slip and cause the second thread segment to be screwed onto the threaded connector by itself is low, that is, the probability that the second thread segment passes through the threaded connector and falls off is low, and thus the probability that the screw structure falls off the base is also low, thereby effectively avoiding the operation of picking up the screw structure during installation, and effectively improving work efficiency.

[0007] In some embodiments, the helical direction of the first thread segment is the same as the helical direction of the second thread segment.

[0008] In some embodiments, the helical direction of the first thread segment is opposite to the helical direction of the second thread segment.

[0009] In some embodiments, one end of the second threaded segment is flush with an end of the rod body facing away from the head.

[0010] In some embodiments, one end of the first thread segment extends to be connected to the head.

[0011] In some embodiments, the number of the second thread segments is at least one, and each of the second thread segments is sequentially spaced apart along the axial direction of the rod body.

[0012] In some embodiments, a receiving hole is provided on the base, and the mounting hole is provided on the bottom wall of the receiving hole; the receiving hole is used to receive the threaded connector.

[0013] In some embodiments, the terminal base further includes an elastic member, and the elastic member is configured to be sandwiched between the head and the threaded connector.

[0014] In some embodiments, the head portion includes a first portion and a second portion, the first portion is connected to the rod body portion, the second portion is disposed on the first portion, and a cross-sectional area of ​​the second portion is smaller than a cross-sectional area of ​​the first portion.

[0015] In a second aspect, an embodiment of the present application further provides a wiring terminal, comprising the wiring terminal base as described above.

[0016] Beneficial effects of the embodiments of the present application: The terminal block provided in the embodiments of the present application includes the terminal block base mentioned above. When the probability of the screw structure of the terminal block base falling off from the base is low, the connection and assembly efficiency of the terminal block is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of the terminal block base provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the internal structure of the screw structure provided in an embodiment of the present application when it is assembled on a mounting block;

[0020] Figure 3 A schematic structural diagram of the screw structure provided in an embodiment of the present application.

[0021] Among them, the reference numerals in the figure are:

[0022] 100. Terminal block base;

[0023] 10. Base; 11. Mounting hole; 12. Accommodation hole;

[0024] 20. Screw structure; 21. Head; 211. First part; 212. Second part; 22. Rod body; 221. First thread segment; 222. Second thread segment;

[0025] 30. Threaded connector; 40. Elastic member;

[0026] A. Axial. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0028] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The wiring terminals on electrical equipment are fixed with screws to connect the wires; however, the screws of the wiring terminals currently on the market are easy to fall off when the base is wired, which requires the installer to pick them up, affecting work efficiency; especially during the wiring process, installers often find it difficult to grasp the degree of loosening of the screws, which can easily cause the screws to completely loosen and fall off. Reinstallation requires manual adjustment of the screw position to align with the threaded opening, which brings trouble and distress to the staff and seriously affects work efficiency. After wiring, there is a risk of the screws falling off, which in turn poses a hidden danger of electrical accidents.

[0032] Based on the above considerations, in order to solve the problem that the screws on the base of the terminal block in the related art are easy to fall off, a terminal block base is designed, by arranging the first thread segment and the second thread segment in sequence along the axial direction on the rod body of the screw structure. During assembly, the first thread segment close to the head can be screwed onto the threaded connector, so that the second thread segment can be inserted into the mounting hole; when the screw structure has a tendency to loosen, even if the first thread segment and the threaded connector loosen and separate, in the process of the screw rod portion detaching from the mounting hole, the probability of the second thread segment and the threaded connector being screwed together by themselves is low, that is, the probability of the second thread segment passing through the threaded connector and falling off is low, so the probability of the screw structure falling off the base is also low, thereby effectively avoiding the operation of picking up the screw structure during installation, and effectively improving work efficiency.

[0033] Below, the terminal block base of the embodiment of the present application will be described in detail according to specific implementation methods.

[0034] Please refer to Figures 1 to 3In the first aspect, the embodiment of the present application provides a terminal base 100, including a base 10 and a screw structure 20, wherein a mounting hole 11 is formed on the base 10, and a threaded connector 30 is provided at the orifice end of the mounting hole 11, and the threaded connector 30 has an internal thread; the screw structure 20 includes a head 21 and a rod body 22 connected to the head 21, and the rod body 22 is provided with a first thread segment 221 and a second thread segment 222 in sequence along the axial direction A, and the first thread segment 221 is close to the head 21; wherein the first thread segment 221 and the second thread segment 222 are respectively threadedly matched with the threaded connector 30, and the first thread segment 221 is threadedly connected to the threaded connector 30 so that the second thread segment 222 is inserted into the mounting hole 11.

[0035] The base 10 is the main structure of the terminal base 100 ; the base 10 may be in various configurations such as a disc-shaped structure, a block-shaped structure, a columnar structure, etc. but is not limited thereto.

[0036] The base 10 is provided with a mounting hole 11; it can be understood that the mounting hole 11 is used for inserting the screw structure 20 so that the screw structure 20 is connected to the base 10. Optionally, the mounting hole 11 provided on the base 10 can be one or more than one arbitrary number; correspondingly, the number of the screw structure 20 can be the same as the number of the base 10.

[0037] The threaded connector 30 is a structural member with internal threads; optionally, the threaded connector 30 includes but is not limited to structures with internal threads such as nuts and threaded pipes. The threaded connector 30 can be fixed to the opening end of the mounting hole 11 by means of clamping, bonding, etc.; or, a receiving cavity can be opened at the opening end of the mounting hole 11. The threaded connector 30 is clamped in the receiving cavity, and the threaded hole of the threaded connector 30 can be directly opposite to the mounting hole 11.

[0038] The screw structure 20 includes a head 21 and a rod 22; wherein the rod 22 is used to be screwed with the threaded connector 30 to achieve the connection and assembly of the screw structure 20 and the base 10. The rod 22 may be a long round rod-shaped structure, and the head 21 may be an abutment structure with a cross-sectional area larger than the rod 22, so that when the rod 22 is screwed with the threaded connector 30, the head 21 can abut against the threaded connector 30 to achieve the purpose of fixing; illustratively, the head 21 may be a semicircular structure, and a straight groove or a cross groove may be provided at one end of the head 21 with an arc surface, for cooperating with a screwdriver for screwing operation.

[0039] The rod body 22 is provided with a first thread segment 221 and a second thread segment 222 along the axial direction A; the first thread segment 221 and the second thread segment 222 are respectively threadedly matched with the threaded connector 30, and the first thread segment 221 is close to the head 21. Therefore, in the process of screwing the rod body 22 of the screw structure 20 into the mounting hole 11, the second thread segment 222 is first screwed into the threaded connector 30, and then continuously screwed into the rod body 22, so that the second thread segment 222 completely enters the mounting hole 11; the operator aligns the first thread segment 221 with the internal thread of the threaded connector 30 for screwing, so that the first thread segment 221 is screwed onto the threaded connector 30, until the head 21 abuts against the threaded connector 30 to complete the connection operation.

[0040] The terminal base 100 provided in the embodiment of the present application is characterized in that the first thread segment 221 and the second thread segment 222 are arranged in sequence along the axial direction A on the rod body 22 of the screw structure 20. During assembly, the first thread segment 221 close to the head 21 can be screwed onto the threaded connector 30, so that the second thread segment 222 can be inserted into the mounting hole 11; when the screw structure 20 has a tendency to loosen, even if the first thread segment 221 and the threaded connector 30 are loosened and separated, in the process of the screw rod part being separated from the mounting hole 11, there is no thread structure between the first thread segment 221 and the second thread segment 222 of the screw rod part. Therefore, the screw rod part will slip, resulting in a low probability that the second thread segment 222 and the threaded connector 30 are screwed together by themselves, that is, the probability that the second thread segment 222 passes through the threaded connector 30 and falls off is low, so that the probability that the screw structure 20 falls off the base 10 is also low, thereby effectively avoiding the operation of picking up the screw structure 20 during installation, and effectively improving work efficiency.

[0041] Please refer to Figures 1 to 3 In some embodiments, the spiral direction of the first thread segment 221 is the same as the spiral direction of the second thread segment 222 .

[0042] It can be understood that the spiral direction of the first thread segment 221 and the spiral direction of the second thread segment 222 are set to be the same. During the connection and assembly process, the second thread segment 222 is first rotated in one direction to be screwed onto the threaded connector 30, and is continuously screwed into the rod body 22 so that the second thread segment 222 completely enters the mounting hole 11; then the first thread segment 221 is aligned with the internal thread of the threaded connector 30, and is continuously screwed in the same direction so that the first thread segment 221 is screwed onto the threaded connector 30.

[0043] When the screw structure 20 needs to be removed from the base 10, the first thread segment 221 is first rotated in one direction to unscrew the threaded connector 30, and then the second thread segment 222 is aligned with the internal thread of the threaded connector 30 and continues to be screwed in the same direction, so that the second thread segment 222 is screwed on the threaded connector 30 and unscrewed from the threaded connector 30, thereby achieving the detachment of the screw structure 20 from the base 10.

[0044] Please refer to Figures 1 to 3 In some embodiments, the spiral direction of the first thread segment 221 is opposite to the spiral direction of the second thread segment 222 .

[0045] It can be understood that the spiral direction of the first thread segment 221 and the spiral direction of the second thread segment 222 are set to be opposite; during the connection and assembly process, the second thread segment 222 is first rotated in one direction to be screwed to the threaded connector 30, and is continuously screwed into the rod body 22 so that the second thread segment 222 completely enters the mounting hole 11; then the first thread segment 221 is aligned with the internal thread of the threaded connector 30, and is screwed in another opposite direction so that the first thread segment 221 is screwed to the threaded connector 30.

[0046] When the screw structure 20 needs to be removed from the base 10, the first thread segment 221 is first rotated in one direction to unscrew the threaded connector 30, and then the second thread segment 222 is aligned with the internal thread of the threaded connector 30 and screwed in the other opposite direction, so that the second thread segment 222 is screwed on the threaded connector 30 and unscrewed from the threaded connector 30, thereby achieving the detachment of the screw structure 20 from the base 10.

[0047] Please refer to Figures 1 to 3 In some embodiments, one end of the second threaded segment 222 is flush with an end of the rod body 22 facing away from the head 21 .

[0048] In this way, when the rod body 22 abuts against and aligns with the threaded connector 30 , the second thread segment 222 can be screwed into the interior of the threaded connector 30 by rotating the rod body 22 , thereby effectively improving the assembly connection efficiency of the screw structure 20 .

[0049] Please refer to Figures 1 to 3 In some embodiments, one end of the first thread segment 221 extends to be connected to the head 21 .

[0050] In this way, when the second thread segment 222 is rotated to be screwed to the threaded connector 30 and the rod body 22 is continuously screwed in to screw the first thread segment 221 to the threaded connector 30, the rod body 22 can be rotated further until the head 21 abuts against the threaded connector 30. Thus, the screw structure 20 has a better effect of connection and fixing.

[0051] Please refer to Figures 1 to 3 In some embodiments, the number of the second thread segments 222 is at least one, and each second thread segment 222 is arranged in sequence and spaced apart along the axial direction A of the rod body portion 22 .

[0052] Optionally, the number of the second thread segments 222 may be one; or, the number of the second thread segments 222 may be two or more, and the second thread segments 222 are sequentially arranged at intervals along the axial direction A of the rod body 22 .

[0053] In this way, the more the number of the second thread segments 222 on the rod body 22 is, the more difficult it is for the screw structure 20 to fall off from the base 10 .

[0054] Please refer to Figures 1 to 3 In some embodiments, a receiving hole 12 is provided on the base 10 , and the mounting hole 11 is provided on the bottom wall of the receiving hole 12 ; the receiving hole 12 is used to receive the threaded connector 30 .

[0055] During assembly, the threaded connector 30 can be placed in the receiving hole 12 , and then the rod portion 22 of the screw structure 20 can be screwed into the threaded connector 30 to complete the assembly.

[0056] Exemplarily, in some embodiments, the threaded connector 30 can be a hexagonal nut with an internal thread, and the accommodating hole 12 can be a hexagonal hole; the hexagonal nut is placed in the hexagonal hole, the hexagonal nut is limited and cannot rotate, and the threaded hole of the hexagonal nut is directly opposite to the mounting hole 11, so that when the rod body 22 is screwed to the hexagonal nut, the part of the rod body 22 where the second threaded section 222 is set can directly extend into the mounting hole 11, thereby achieving the purpose of preventing it from falling off.

[0057] Please refer to Figures 1 to 3 In some embodiments, the terminal base 100 further includes an elastic member 40 , and the elastic member 40 is configured to be sandwiched between the head 21 and the threaded connector 30 .

[0058] Optionally, the elastic member 40 includes but is not limited to an elastic sheet structure such as an elastic sheet and an elastic gasket.

[0059] In this arrangement, the elastic member 40 is clamped between the head 21 and the threaded connector 30. The elastic member 40 can abut against the head 21 according to its own elastic force, so that the head 21 applies a force to the rod body 22 to reduce the probability of the rod body 22 loosening relative to the threaded connector 30.

[0060] Please refer to Figures 1 to 3In some embodiments, the head 21 includes a first portion 211 and a second portion 212 , the first portion 211 is connected to the rod body 22 , the second portion 212 is disposed on the first portion 211 , and a cross-sectional area of ​​the second portion 212 is smaller than a cross-sectional area of ​​the first portion 211 .

[0061] It can be understood that the cross-sectional area of ​​the first portion 211 and the second portion 212 refers to the area of ​​the cross section formed along the axial direction A perpendicular to the rod body 22 .

[0062] The first part 211 is connected to the rod body 22; optionally, the first part 211 may be, but is not limited to, a circular, rectangular or other polygonal configuration. The cross-sectional area of ​​the second part 212 is smaller than the cross-sectional area of ​​the first part 211, that is, the cross-sectional area of ​​the first part 211 is larger, thereby, the area of ​​the first part 211 abutting against the threaded connector 30 or the elastic member 40 is larger, and the connection and fixing effect formed by the screw structure 20 is better.

[0063] For example, in some embodiments, the first portion 211 may be a rectangular structure, the second portion 212 may be a hemispherical structure, and the second portion 212 may be integrally formed on the first portion 211 .

[0064] Please refer to Figures 1 to 3 In a second aspect, the embodiment of the present application further provides a wiring terminal (not shown in the figure), including the wiring terminal base 100 as described above.

[0065] The wiring terminal provided in the embodiment of the present application includes the above-mentioned wiring terminal base 100. When the probability of the screw structure 20 of the above-mentioned wiring terminal base 100 falling off from the base 10 is low, the connection and assembly efficiency of the wiring terminal is higher.

[0066] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A terminal base, characterized in that: include: A base, wherein a mounting hole is formed on the base, a threaded connector is disposed at the opening end of the mounting hole, and the threaded connector has an internal thread; as well as A screw structure, the screw structure comprising a head and a rod body connected to the head, the rod body being provided with a first thread segment and a second thread segment in sequence and spaced apart along the axial direction, the first thread segment being close to the head; The first thread segment and the second thread segment are respectively threadedly matched with the threaded connector, and the first thread segment is threadedly connected to the threaded connector so that the second thread segment is inserted into the mounting hole.

2. The terminal base according to claim 1, characterized in that: The helical direction of the first thread segment is the same as the helical direction of the second thread segment.

3. The terminal base according to claim 1, characterized in that: The helical direction of the first thread segment is opposite to the helical direction of the second thread segment.

4. The terminal base according to claim 2 or 3, characterized in that: One end of the second threaded section is flush with an end of the rod body portion facing away from the head portion.

5. The terminal base according to claim 2 or 3, characterized in that: One end of the first thread segment extends to be connected to the head.

6. The terminal base according to claim 1, characterized in that: The number of the second thread segments is at least one, and each of the second thread segments is sequentially arranged at intervals along the axial direction of the rod body.

7. The terminal base according to claim 1, characterized in that: The base is provided with a receiving hole, and the mounting hole is provided on the bottom wall of the receiving hole; the receiving hole is used for receiving the threaded connector.

8. The terminal base according to claim 1, characterized in that: The terminal base further includes an elastic member, and the elastic member is configured to be sandwiched between the head and the threaded connector.

9. The terminal base according to claim 1, characterized in that: The head portion includes a first portion and a second portion, the first portion is connected to the rod body portion, the second portion is disposed on the first portion, and a cross-sectional area of ​​the second portion is smaller than a cross-sectional area of ​​the first portion.

10. A terminal block, characterized in that: It comprises a terminal base as claimed in any one of claims 1 to 9.

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