Connecting mechanism and relay protection automatic testing device

Abstract

The utility model relates to the technical field of relay protection, in particular to a connecting mechanism and a relay protection automatic testing device, which comprise a connecting unit, a connecting unit, a rotating unit, a connecting unit, a connecting unit, a rotating unit, a connecting unit, a connecting unit, a connecting unit, a connecting unit, a connecting unit and a connecting unit, the connecting unit comprises a connecting assembly, a one-way rotating assembly and a rotating assembly, the one-way rotating assembly is rotatably arranged on the connecting assembly, and the rotating assembly is positioned on the inner side of the one-way rotating assembly; the protective cover is arranged on the connecting assembly; the clamping unit comprises a locking assembly rotationally arranged on the one-way rotating assembly and a pressing assembly arranged on the peripheral face of the one-way rotating assembly. The rotating assembly can rotate, the rotating assembly and the one-way rotating assembly are connected through the locking assembly and the pressing assembly, and the connecting mode between the rotating assembly and the one-way rotating assembly is changed; and the angle of the test main body can be fixed, so that a user can conveniently insert a wire or adapt to working planes with different gradients.

Description

Technical Field

[0001] The utility model relates to the technical field of relay protection, in particular to a connection mechanism and an automatic test device for relay protection. Background Art

[0002] The connection mechanism is an important part of mechanical design, used to connect and transmit motion and force. It is a device formed by a fixed or movable connection between two or more structural parts, used to achieve relative motion or transmit force. There are many types of connection mechanisms, including threaded connection, interference connection, and reamed hole bolt connection. Threaded connection is a widely used detachable fixed connection with the advantages of simple structure, reliable connection, and easy assembly and disassembly.

[0003] The existing connection mechanism cannot change the connection method of the component parts, so it can only perform a single movable connection or a fixed connection. The connection method is cumbersome and difficult to change. The existing relay protection automatic test device can be portable and moved by a handle for outdoor work. However, when the relay protection automatic test device is placed on a lower working plane outdoors for work, the staff needs to bend down to find the wiring port of the relay protection automatic test device, which is inconvenient to operate. Or the slope of the outdoor working plane varies greatly, which makes it inconvenient to change the use angle of the relay protection automatic test device. Utility Model Content

[0004] In view of the technical problems that the connection methods of the above-mentioned existing connection mechanisms are complicated and difficult to change, the first technical solution of the utility model is proposed.

[0005] The utility model provides a connection mechanism, the purpose of which is to solve the technical problems that the connection method is complicated and difficult to change.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a connecting mechanism, which includes a connecting unit and a clamping unit.

[0007] Wherein, the connecting unit comprises a connecting component, a one-way rotating component rotatably arranged on the connecting component, a rotating component rotatably arranged on the connecting component and located inside the one-way rotating component, and a protective cover arranged on the connecting component; and,

[0008] The clamping unit comprises a locking component rotatably arranged on the one-way rotating component, and a pressing component arranged on the outer peripheral surface of the one-way rotating component.

[0009] As a preferred solution of the connection mechanism of the utility model, the connection component includes a connection plate and a fixing column which is arranged on the connection plate and cooperates with the one-way rotation component.

[0010] As a preferred solution of the connection mechanism of the utility model, wherein: the one-way rotation assembly includes a sleeve rotatably arranged on the connection plate, and a ratchet wheel arranged on the outer peripheral surface of the sleeve and cooperating with the fixing column;

[0011] Wherein, a mounting opening groove is provided on the outer peripheral surface of the sleeve away from the connecting plate at one end.

[0012] As a preferred solution of the connecting mechanism of the utility model, the rotating assembly includes a rotating shaft rotatably arranged on the connecting plate and passing through the inner side of the sleeve, a baffle arranged at one end of the rotating shaft away from the connecting plate, and a fixing ring arranged on the rotating shaft.

[0013] As a preferred solution of the connection mechanism of the utility model, an open groove is provided on the end surface of the fixing ring away from the baffle.

[0014] As a preferred solution of the connection mechanism of the utility model, the locking assembly includes a rotating shaft rotatably arranged in the installation opening groove, a clamping plate arranged on the rotating shaft, a guide block 1 arranged on the upper end surface of the clamping plate, and a spring arranged in the installation opening groove and connected to the guide block 1.

[0015] As a preferred solution of the connection mechanism of the utility model, wherein: the bottom surface of the clamping plate is provided with a through opening, the middle part of the bottom surface of the clamping plate protrudes upward to form an arc surface that fits the rotating shaft, and the upper end surface of the guide block 1 is the guide surface.

[0016] As a preferred solution of the connection mechanism of the utility model, the clamping assembly includes a sliding ring slidably arranged on the outer circumference of the sleeve and located outside the protective cover, and a guide block 2 arranged on the outer circumference of the sleeve.

[0017] The beneficial effects of the connection mechanism of the utility model are as follows: a connection unit and a clamping unit are provided, the rotating component itself can be rotated, and the connection between the rotating component and the one-way rotating component is achieved by providing a locking component and a clamping component. At this time, when the rotating component rotates, it can synchronously drive the one-way rotating component to rotate, thereby changing the connection method between the rotating component and the one-way rotating component, and the operation is simple and easy to use.

[0018] Another object of the utility model is to provide an automatic test device for relay protection, which aims to solve the technical problem that the existing test device cannot be placed at an angle and is inconvenient to insert the wire.

[0019] In order to solve the above technical problems, the utility model also provides the following technical solutions: a relay protection automatic test device, which includes a connecting mechanism, and also includes a test device, including a test body, a handle assembly rotatably arranged on the test body and connected to the rotating assembly, and a mounting column arranged on one end face of the test body.

[0020] As a preferred solution of the automatic test device for relay protection of the utility model, the handle assembly includes a handle, a rotating mounting ring arranged at one end of the handle and rotatably arranged on the mounting column, and a fixed mounting ring arranged at the other end of the handle and arranged on the rotating assembly.

[0021] The beneficial effects of the automatic test device for relay protection of the utility model are as follows: the test body can be carried by the handle, and when the test body is in use, the locking assembly can be connected to the one-way rotating assembly and the rotating assembly by the clamping assembly, and then the rotation of the handle drives the rotating assembly and the one-way rotating assembly to operate as a whole, and the direction limitation of the one-way rotating assembly realizes the fixation of the rotating assembly and the one-way rotating assembly, and the inclination angle of the test body can be fixed, which is convenient for the user to insert the wire or adapt to the working planes with different slopes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 work. Among them:

[0023] Figure 1 It is a schematic diagram of the overall structure of the connecting mechanism in the utility model.

[0024] Figure 2 It is a schematic diagram of the installation structure of the clamping unit in the connecting mechanism of the utility model.

[0025] Figure 3 It is a structural schematic diagram of the rotating component in the connecting mechanism of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the locking assembly in the connecting mechanism of the utility model.

[0027] Figure 5 The structure diagram of the automatic test device for relay protection of the utility model is shown in FIG. Figure 1 .

[0028] Figure 6 The structure diagram of the automatic test device for relay protection of the utility model is shown in FIG. Figure 2 .

[0029] Figure 7 The utility model is a schematic diagram of the installation structure of the installation column in the automatic test device for relay protection.

[0030] Figure 8 The utility model is a schematic diagram of the structure of the handle assembly in the relay protection automatic test device. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Example 1

[0035] Reference Figure 1-2 , which is the first embodiment of the utility model, provides a connection mechanism, including a connection unit 100 and a clamping unit 200. The clamping unit 200 is provided to connect the internal parts of the connection unit 100, so that the parts that run separately can run in a unified manner.

[0036] The connecting unit 100 includes a connecting component 101, a one-way rotating component 102 rotatably arranged on the connecting component 101, a rotating component 103 rotatably arranged on the connecting component 101 and located on the inner side of the one-way rotating component 102, and a protective cover 104 arranged on the connecting component 101; the protective cover 104 is provided with a through hole for the one-way rotating component 102 to pass through; the one-way rotating component 102 can rotate on the connecting component 101, and the rotating component 103 can also realize the function of rotating on the connecting component 101.

[0037] The clamping unit 200 includes a locking assembly 201 rotatably disposed on the one-way rotating assembly 102, and a pressing assembly 202 disposed on the outer peripheral surface of the one-way rotating assembly 102. The one-way rotating assembly 102 and the rotating assembly 103 are stably connected by the provided locking assembly 201 and the pressing assembly 202, so that the one-way rotating assembly 102 and the rotating assembly 103 can operate in unison.

[0038] During use: the rotating component 103 itself can rotate, and the connection between the rotating component 103 and the one-way rotating component 102 is achieved through the provided locking component 201 and the clamping component 202. At this time, when the rotating component 103 rotates, it can synchronously drive the one-way rotating component 102 to rotate, thereby changing the connection method between the rotating component 103 and the one-way rotating component 102, which is simple to operate and easy to use.

[0039] Example 2

[0040] Reference Figure 1 to Figure 6 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: the sliding ring 202a moves to press the multiple clamping plates 201b into the multiple open grooves 103c-1, thereby realizing the matching connection between the rotating component 103 and the one-way rotating component 102.

[0041] Preferably, the connecting assembly 101 includes a connecting plate 101a and a fixing column 101b disposed on the connecting plate 101a and cooperating with the one-way rotating assembly 102. The one-way rotating assembly 102 is limited by the fixing column 101b.

[0042] Furthermore, the one-way rotating component 102 includes a sleeve 102a rotatably arranged on the connecting plate 101a, and a ratchet 102b arranged on the outer circumferential surface of the sleeve 102a and cooperating with the fixed column 101b; the one-way rotation of the sleeve 102a is realized by the limiting between the ratchet 102b and the fixed column 101b, and the position of the sleeve 102a can also be limited and fixed.

[0043] The outer surface of the sleeve 102a away from the connecting plate 101a is provided with a mounting opening groove 102a-1. There are multiple mounting opening grooves 102a-1, which are distributed in a circle with the central axis of the sleeve 102a as the axis center, so that the limiting of the rotating assembly 103 is more stable.

[0044] Furthermore, the rotating assembly 103 includes a rotating shaft 103a rotatably disposed on the connecting plate 101a and passing through the inner side of the sleeve 102a, a baffle 103b disposed at one end of the rotating shaft 103a away from the connecting plate 101a, and a fixing ring 103c disposed on the rotating shaft 103a. The fixing ring 103c is limited to achieve the fixing of the one-way rotating assembly 102 and the rotating assembly 103 as a whole.

[0045] Preferably, an end surface of the fixing ring 103c away from the baffle 103b is provided with an opening groove 103c-1. The number of the opening grooves 103c-1 is the same as that of the installation opening grooves 102a-1, and is used for installing and limiting the locking assembly 201.

[0046] Furthermore, the locking assembly 201 includes a rotating shaft 201a rotatably arranged in the installation opening slot 102a-1, a clamping plate 201b arranged on the rotating shaft 201a, a guide block 201c arranged on the upper end surface of the clamping plate 201b, and a spring 201d arranged in the installation opening slot 102a-1 and connected to the guide block 201c. The locking assembly 201 is provided with a plurality of springs, which can stably clamp and limit the rotating assembly 103; the spring 201d pulls the clamping plate 201b to swing, so that the clamping plate 201b is separated from the opening slot 103c-1, thereby unlocking the one-way rotating assembly 102 and the rotating assembly 103; under the action of the pressing assembly 202, the clamping plate 201b rotates, stretching the spring 201d, so that the clamping plate 201b is matched and clamped into the plurality of opening slots 103c-1, thereby realizing the limiting fixation of the rotating assembly 103.

[0047] Furthermore, a through opening 201b-1 is provided on the bottom surface of the card plate 201b, and the middle part of the bottom surface of the card plate 201b protrudes upward to form an arc surface 201b-2 that fits the rotating shaft 103a, and the upper end surface of the guide block 201c is the guide surface 201c-1. The height of the upper end surface of the guide surface 201c-1 gradually increases from the end close to the connecting plate 101a to the end away from the connecting plate 101a; the upper end surface of the guide block 201c is provided with an installation blind hole 201c-2 for installing the spring 201d; the clamping plate 201b is fitted into the opening groove 103c-1, and the opening 201b-1 is pressed against the inner wall of the installation opening groove 102a-1, and the arc surface 201b-2 is pressed against the rotating shaft 103a. When the rotating component 103 rotates, the inner wall of the opening groove 103c-1 is pressed against the side of the clamping plate 201b and the guide block 201c, and the rotating component 103 drives the locking component 201 and the one-way rotating component 102 installed with the locking component 201 to rotate.

[0048] Preferably, the clamping assembly 202 includes a sliding ring 202a slidably disposed on the outer circumference of the sleeve 102a and located outside the protective cover 104, and a guide block 202b disposed on the outer circumference of the sleeve 102a. There are multiple guide blocks 202b; the inner circumference of the sliding ring 202a is provided with a through slide groove 202a-1 that cooperates with the guide block 202b. The multiple guide blocks 202b are respectively embedded in the multiple through slide grooves 202a-1. When the sliding ring 202a slides, the multiple guide blocks 202b slide and rub against the inner walls of the multiple through slide grooves 202a-1. The inner wall of the sliding ring 202a is pressed against the guide surface 201c-1, and the multiple clamping plates 201b are pressed into the multiple open grooves 103c-1. The mutual extrusion between the inner wall of the sliding ring 202a and the guide surface 201c-1 also realizes the stable positioning of the sliding ring 202a.

[0049] During use: the sliding ring 202a moves, and the multiple clamping plates 201b are pressed into the multiple open grooves 103c-1. When the rotating component 103 rotates, the inner wall of the open groove 103c-1 is pressed against the side wall of the clamping plate 201b and the guide block 201c. The rotating component 103 drives the locking component 201 and the one-way rotating component 102 on which the locking component 201 is installed to rotate, thereby realizing a fixed connection between the rotating component 103 and the one-way rotating component 102, and converting the rotation of the rotating component 103 into the overall rotation of the rotating component 103 and the one-way rotating component 102, which is convenient and simple to operate.

[0050] Example 3

[0051] Reference Figures 1 to 8 , which is the third embodiment of the utility model, further provides a relay protection automatic test device, including the connection mechanism in the above embodiment, and also including a test device 300. The test device 300 detects faults or abnormal conditions occurring in the power system, thereby issuing an alarm signal, or directly isolating and removing the faulty part.

[0052] The test device 300 includes a test body 301, a handle assembly 302 rotatably disposed on the test body 301 and connected to the rotating assembly 103, and a mounting post 303 disposed on one end surface of the test body 301. The connecting plate 101a is mounted on the end surface of the test body 301 away from the mounting post 303. The handle assembly 302 is mounted on the test body 301 through the mounting post 303 and the connecting mechanism, thereby realizing the free rotation of the handle assembly 302 and the supporting function when the angle of the test body 301 needs to be changed.

[0053] Preferably, the handle assembly 302 includes a handle 302a, a rotating mounting ring 302b disposed at one end of the handle 302a and rotatably disposed on the mounting column 303, and a fixed mounting ring 302c disposed at the other end of the handle 302a and disposed on the rotating assembly 103. The handle 302a is provided with an anti-slip sleeve 302a-1; the other end of the handle 302a is mounted on the rotating shaft 103a and is located between the fixed ring 103c and the baffle 103b. The fixed mounting ring 302c is mounted on the rotating shaft 103a, and when the handle 302a is rotated, the rotating assembly 103 can be driven to rotate, thereby realizing the rotation and limited fixation of the handle 302a.

[0054] During use: the test body 301 can be carried by the handle 302a. At the same time, when the test body 301 is in use, the locking assembly 201 can be connected to the one-way rotating assembly 102 and the rotating assembly 103 through the clamping assembly 202, and then the rotation of the handle 302a drives the rotating assembly 103 and the one-way rotating assembly 102 to operate as a whole. The direction limitation of the one-way rotating assembly 102 realizes the fixation of the rotating assembly 103 and the one-way rotating assembly 102, and the inclination angle of the test body 301 can be fixed, which is convenient for the user to insert the wire or adapt to the working plane with different slopes.

[0055] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality 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 ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation 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, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can 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 can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also 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.

[0056] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (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) may not be described.

[0057] 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.

[0058] 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 connecting mechanism, characterized in that: include, A connecting unit (100) comprises a connecting component (101), a one-way rotating component (102) rotatably arranged on the connecting component (101), a rotating component (103) rotatably arranged on the connecting component (101) and located inside the one-way rotating component (102), and a protective cover (104) arranged on the connecting component (101); and, The clamping unit (200) comprises a locking assembly (201) rotatably arranged on the one-way rotating assembly (102), and a pressing assembly (202) arranged on the outer peripheral surface of the one-way rotating assembly (102).

2. The connecting mechanism according to claim 1, characterized in that: The connecting component (101) comprises a connecting plate (101a) and a fixing column (101b) which is arranged on the connecting plate (101a) and cooperates with the one-way rotating component (102).

3. The connecting mechanism according to claim 2, characterized in that: The one-way rotating assembly (102) comprises a sleeve (102a) rotatably arranged on the connecting plate (101a), and a ratchet (102b) arranged on the outer peripheral surface of the sleeve (102a) and cooperating with the fixing column (101b); Wherein, a mounting opening groove (102a-1) is provided on the outer peripheral surface of one end of the sleeve (102a) away from the connecting plate (101a).

4. The connecting mechanism according to claim 3, characterized in that: The rotating assembly (103) comprises a rotating shaft (103a) rotatably arranged on the connecting plate (101a) and passing through the inner side of the sleeve (102a), a baffle (103b) arranged at one end of the rotating shaft (103a) away from the connecting plate (101a), and a fixing ring (103c) arranged on the rotating shaft (103a).

5. The connection mechanism according to claim 4, characterized in that: An open groove (103c-1) is provided on an end surface of the fixing ring (103c) away from the baffle (103b).

6. The connection mechanism according to claim 5, characterized in that: The locking assembly (201) comprises a rotating shaft (201a) rotatably arranged in the installation opening groove (102a-1), a clamping plate (201b) arranged on the rotating shaft (201a), a guide block (201c) arranged on the upper end surface of the clamping plate (201b), and a spring (201d) arranged in the installation opening groove (102a-1) and connected to the guide block (201c).

7. The connection mechanism according to claim 6, characterized in that: The bottom surface of the clamping plate (201b) is provided with a through opening (201b-1), the middle portion of the bottom surface of the clamping plate (201b) protrudes upward to form an arc surface (201b-2) that fits the rotating shaft (103a), and the upper end surface of the guide block 1 (201c) is the guide surface (201c-1).

8. The connection mechanism according to claim 7, characterized in that: The clamping assembly (202) comprises a sliding ring (202a) slidably arranged on the outer peripheral surface of the sleeve (102a) and located outside the protective cover (104), and a second guide block (202b) arranged on the outer peripheral surface of the sleeve (102a).

9. A relay protection automatic test device, characterized in that: The connecting mechanism comprises any one of claims 1 to 8, and further comprises: The testing device (300) comprises a testing body (301), a handle assembly (302) rotatably disposed on the testing body (301) and connected to the rotating assembly (103), and a mounting column (303) disposed on one end surface of the testing body (301).

10. The automatic test device for relay protection according to claim 9, characterized in that: The handle assembly (302) comprises a handle (302a), a rotating mounting ring (302b) arranged at one end of the handle (302a) and rotatably arranged on the mounting column (303), and a fixed mounting ring (302c) arranged at the other end of the handle (302a) and arranged on the rotating assembly (103).

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