阅读说明：本技术 一种带可变角度接头的二次试验线 (Take secondary test line that variable angle connects ) 是由 王磊 黄力 牟楠 李树鹏 朱皓 黄照厅 曾蓉 龙志 张建行 陈相吉 陈刚 瞿杨 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种带可变角度接头的二次试验线,包括,试验线本体,包括绝缘套、设置在绝缘套内的芯杆以及与芯杆后端连接的铜线；连接组件,包括转动连接在芯杆后端的旋转体以及开设在芯杆后端供铜线插接的插槽,所述旋转体转动平面竖直设置；以及,保护组件,所述保护组件设置在绝缘套前端,可变角度试验线由于其角度可灵活调节,在狭窄空间容易操作,便于插入狭窄部位的端子排,避免强行插入端子导致试验线受力受损、接线端子变形。(The invention discloses a secondary test wire with a variable-angle joint, which comprises a test wire body, a connecting rod and a connecting rod, wherein the test wire body comprises an insulating sleeve, a core rod arranged in the insulating sleeve and a copper wire connected with the rear end of the core rod; the connecting assembly comprises a rotating body rotatably connected to the rear end of the core rod and a slot formed in the rear end of the core rod and used for inserting a copper wire, and the rotating plane of the rotating body is vertically arranged; and the protection assembly is arranged at the front end of the insulating sleeve, and the angle-variable test wire can be flexibly adjusted due to the angle of the angle-variable test wire, is easy to operate in a narrow space, is convenient to insert into a terminal strip at a narrow part, and avoids the forced insertion of the terminal to cause the stress damage of the test wire and the deformation of the wiring terminal.)

1. The utility model provides a take secondary test line that variable angle connects which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the test wire body (100) comprises an insulating sleeve (101), a core rod (102) arranged in the insulating sleeve (101) and a copper wire (103) connected with the rear end of the core rod (102);

the connecting assembly (200) comprises a rotating body (201) rotatably connected to the rear end of the core rod (102) and a slot (202) formed in the rear end of the core rod (102) and used for inserting the copper wire (103), and the rotating plane of the rotating body (201) is vertically arranged; and the number of the first and second groups,

the protective component (300), the protective component (300) sets up in insulating cover (101) front end.

2. The secondary test line with variable angle joint of claim 1, wherein: the rear end of the core rod (102) is provided with a rotary groove (203), an ear plate (203a) is arranged in the rotary groove (203), the lower end of the insulating sleeve (101) is provided with an opening (204) for the rotation of the rotating body (201), two ends of the rotating body (201) are inserted into the ear plate (203a), and the ear plate (203a) is provided with a locking component (205) for locking the position of the rotating body (201).

3. The secondary test line with variable angle joint of claim 2, wherein: the locking component (205) comprises inserted rods (206) arranged at two ends of the rotating body (201), clamping holes (207) which are arranged on the ear plates (203a) and are matched with two ends of the rotating body (201), key slots (208) arranged on the peripheral wall of the clamping holes (207) and clamping keys (209) which are arranged on the rotating body (201) and are matched with the key slots (208),

wherein an elastic piece (209a) is arranged between the rotating body (201) and the rotary groove (203).

4. The secondary test line with variable angle joint of claim 1, wherein: the protection component (300) comprises a connecting ring (301) arranged at the front end of the insulating sleeve (101), a blocking block (302) arranged at the inner side of the connecting ring (301) and a connecting rod (303) arranged at the upper end of the blocking block (302),

the connecting rod (303) is connected to the connecting ring (301) in a sliding mode along the vertical direction, and a first spring (304) for driving the blocking block (302) to reset is arranged outside the connecting rod (303).

5. The secondary test line with variable angle joint of claim 4, wherein: the position, far away from the blocking block (302), of the connecting ring (301) is connected with a driving plate (305) in a sliding mode, a top plate (306) is arranged on the driving plate (305), the top plate (306) abuts against the blocking block (302) after sliding, the top plate (306) is arranged at the position close to the side wall of the connecting ring (301), one end of the driving plate (305) extends out of the connecting ring (301), and a second spring (308) is arranged between the driving plate (305) and the connecting ring (301).

6. The secondary test line with variable angle joint of claim 5, wherein: the lower end of the blocking block (302) is provided with a first inclined surface (306a), and the upper end of the top plate (306) is provided with a second inclined surface (306b) corresponding to the first inclined surface (306 a).

7. The secondary test line with a variable angle joint of claim 4 or 6, wherein: the blocking block (302) is provided with a coating sleeve (307), and the coating sleeve (307) is sleeved at the front end of the core rod (102).

8. The secondary test line with variable angle joint of claim 4, wherein: the rear end of the connecting ring (301) is provided with a sliding plate (400), and the insulating sleeve (101) is provided with a sliding groove (401) for the sliding plate (400) to slide.

9. The secondary test line with variable angle joint of claim 1, wherein: the front end of the core rod (102) is sleeved with an extension sleeve (402), a third spring (403) is arranged between the extension sleeve (402) and the core rod (102), and the outer peripheral wall of the extension sleeve (402) is provided with an arc-shaped peripheral surface (404).

10. The secondary test line with a variable angle joint of claim 9, wherein: the front end of the core rod (102) is provided with an elastic sheet (500), the middle section of the elastic sheet (500) extends outwards, and the front end of the core rod (102) is provided with a connector (501).

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a secondary test wire with a variable-angle joint.

Background

At present in the work of transformer substation secondary maintenance, need use the test wire to carry protection device with electric quantity or switching value during the experiment, the lantern joint of present test wire all adopts the integrated design with the copper line, it connects to connect to adopt hard insulating material parcel, because the copper line needs to be considered with the length of the reliable and afterbody switching of contact that connects for whole joint, it is longer to connect the whole non-flexible material part of unadjustable, and the job site of relay protection screen cabinet often meets some current-voltage terminal row that the test wire of being not convenient for cut straightly, be common in protection printer position, insert the terminal by force and probably lead to the test wire atress impaired, lead to binding post to warp even, the later stage can appear switching on potential hazards such as bad.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The invention is provided in view of the problem that the stress of the conventional secondary test wire with the variable-angle joint is easily damaged.

Therefore, the invention aims to provide a secondary test line with a variable-angle joint.

In order to solve the technical problems, the invention provides the following technical scheme: a secondary test wire with a variable-angle joint comprises a test wire body, a connecting rod and a connecting rod, wherein the test wire body comprises an insulating sleeve, a core rod arranged in the insulating sleeve and a copper wire connected with the rear end of the core rod; the connecting assembly comprises a rotating body rotatably connected to the rear end of the core rod and a slot formed in the rear end of the core rod and used for inserting a copper wire, and the rotating plane of the rotating body is vertically arranged; and the protection assembly is arranged at the front end of the insulating sleeve.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: the rotary rod is characterized in that a rotary groove is formed in the rear end of the core rod, an ear plate is arranged in the rotary groove, an opening for the rotation of the rotary body is formed in the lower end of the insulating sleeve, two ends of the rotary body are inserted into the ear plate, and a locking component for locking the position of the rotary body is arranged on the ear plate.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: the locking part comprises insertion rods arranged at two ends of the rotating body, clamping holes which are formed in the lug plates and matched with the two ends of the rotating body, key grooves formed in the peripheral walls of the clamping holes, and clamping keys which are arranged on the rotating body and matched with the key grooves, wherein an elastic piece is arranged between the rotating body and the rotary grooves.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: the protection assembly comprises a connecting ring arranged at the front end of the insulating sleeve, a separation block arranged on the inner side of the connecting ring and a connecting rod arranged at the upper end of the separation block, wherein the connecting rod is connected to the connecting ring in a sliding mode along the vertical direction, and a first spring for driving the separation block to reset is arranged outside the connecting rod.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: the position, far away from the barrier block, of the connecting ring is connected with a drive plate in a sliding mode, a top plate is arranged on the drive plate, the top plate abuts against the barrier block after sliding, the top plate is arranged at a position close to the side wall of the connecting ring, one end of the drive plate extends out of the connecting ring, and a second spring is arranged between the drive plate and the connecting ring.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: first inclined plane has been seted up to separation piece lower extreme, the roof upper end is equipped with the second inclined plane that corresponds with first inclined plane.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: the blocking blocks are provided with coating sleeves, and the coating sleeves are sleeved at the front ends of the core rods.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: the rear end of the connecting ring is provided with a sliding plate, and the insulating sleeve is provided with a sliding groove for the sliding plate to slide.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: the front end of the core rod is sleeved with an increasing sleeve, a third spring is arranged between the increasing sleeve and the core rod, and the peripheral wall of the increasing sleeve is provided with an arc-shaped peripheral surface.

As a preferable aspect of the secondary test wire with a variable angle joint of the present invention, wherein: the spring piece is arranged at the front end of the core rod, the middle section of the spring piece extends outwards, and the connector is arranged at the front end of the core rod.

The invention has the beneficial effects that: the angle of the variable-angle test wire can be flexibly adjusted, so that the variable-angle test wire is easy to operate in a narrow space, is convenient to insert into a terminal strip at a narrow part, and avoids the phenomenon that the test wire is stressed and damaged and a wiring terminal deforms when the terminal is forcibly inserted. Because the copper wire is connected with the corner part of the core rod, the contact area of the copper wire and the core rod can be properly increased, the contact resistance is reduced, and the heat productivity is reduced. The method can ensure the safety and reliability of secondary measures and firm wiring, cannot influence the accuracy of difficulty results due to unreliable test wiring, and can avoid the defect operation condition of the protection device caused by misconnection, missing connection, virtual connection and the like possibly occurring in the process of disconnecting and connecting the wiring. Avoid traditional line fork mistake to bump operation secondary circuit in the process of the test and lead to the mistake to jump the operation equipment, protect the subassembly simultaneously and can protect the joint core bar of test line, prevent to be destroyed by external force when not using, connect simultaneously and insert and connect the downthehole back of treating the connection, go-between and protection subassembly can be protected the coupling part between core bar and the insulating cover, strengthen the coupling part of core bar, guarantee the stability of connecting.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

FIG. 1 is a schematic view of the overall structure of a secondary test line with a variable angle joint according to the present invention.

FIG. 2 is a schematic sectional view of a connection structure of a core bar and a copper wire of the secondary test wire with a variable angle joint according to the present invention.

Fig. 3 is a structural schematic diagram of a protection assembly in a starting state of the secondary test line with the variable angle joint.

Fig. 4 is a schematic diagram of the extended state structure of the extension tube of the secondary test line with the variable angle joint of the present invention.

Fig. 5 is an explosion diagram of the structure of the protection assembly of the secondary test line with the variable angle joint of the present invention.

Fig. 6 is a rear view of an exploded connection ring and riser structure of a secondary test line with a variable angle joint according to the present invention.

Fig. 7 is an exploded view of the locking member structure of the secondary test line with a variable angle joint according to the present invention.

Fig. 8 is an enlarged schematic view of a portion a of fig. 7 of the secondary test line with a variable angle joint according to the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.