A clamping mechanism and insulating protective cover

Abstract

The utility model relates to the technical field of 10kV system shaking insulation test terminal blocks, and particularly to a clamping mechanism and an insulating protective cover, comprising a clamping unit, which comprises a clamping component, a telescopic component arranged at one end of the clamping component, and a fastening component arranged on the outer surface of the clamping component. The fastening component comprises a fixed sleeve arranged on the surface of the clamping component, the fixed sleeve is provided with latching teeth, a fastening shaft movably connected to the inside of the fixed sleeve, and a spring arranged inside the fixed sleeve. The telescopic component can be adjusted at will, and a grounding flat iron of any size can be clamped. The fastening component can be used to better clamp the flat iron. The beneficial effects of the utility model are as follows: the telescopic component can be adjusted at will, and a grounding flat iron of any size can be clamped. The fastening component can be used to better clamp the flat iron.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring terminals for shaking insulation testing of a 10kV system, in particular to a clamping mechanism and an insulating protective cover. Background Art

[0002] In the daily maintenance and overhaul of 10kV systems, shaking insulation test is an important task. At present, the grounding point in the 10kV system switch cabinet is a square flat iron. In actual operation, a terminal block is needed to connect the megohmmeter and the grounding point. However, the existing terminal block is often difficult to effectively clamp on the square flat iron, resulting in unstable wiring and affecting the accuracy and efficiency of shaking insulation test.

[0003] In order to solve the problem that traditional wiring terminals are difficult to clamp on the grounding point, a telescopic component is added to the original wiring terminal, and the inner side of the telescopic claw is provided with an anti-slip texture. For larger square grounding points, the device can use the telescopic mechanism to effectively fix the wiring terminal on the grounding point, and then tighten the clamping component through the fastening component, thereby achieving effective clamping and stable connection of the docking point. Traditional wiring terminals also have unreliable insulation layers. Usually, the insulation layer is a rubber sleeve set at both ends of the wiring clamp. When too much force is applied, the rubber sleeve will slide and fall off, and even because the rubber is too thin and easy to be damaged, the protection for the operator is not sufficient, and there are certain safety hazards.

[0004] In summary, the utility model solves the problems of unstable clamping of the terminal blocks and safe and reliable insulation protection layer. By adopting a simpler structure, a relatively stable clamping effect is achieved. The utility model is simple to use and easy to install. It can effectively solve the problem of unstable clamping and provides convenience for system maintenance work. Utility Model Content

[0005] In view of the problem of unstable clamping of the connection terminal mentioned above or in the prior art, the utility model is proposed.

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

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a clamping unit, which includes a clamping assembly, a telescopic assembly arranged at one end of the clamping assembly, and a fastening assembly arranged on the outer surface of the clamping assembly;

[0008] The fastening assembly comprises a fixing sleeve arranged on the surface of the clamping assembly, the fixing sleeve is provided with a latching tooth, a fastening shaft movably connected and arranged inside the fixing sleeve, and a spring arranged inside the fixing sleeve;

[0009] The fastening shaft comprises a shaft body which is arranged in a sliding connection in the fixing sleeve, and the outer surface of the shaft body is provided with two identical elastic blocks and a boss which is arranged on the outer surface of the shaft body.

[0010] As a preferred solution of the clamping mechanism of the utility model, the clamping assembly includes an upper jaw, a first notch is formed in the upper jaw, a lower jaw is arranged at the bottom end of the upper jaw, a connecting shaft installed on the upper jaw and movably connected to the lower jaw, and a torsion spring installed on the outer surface of the connecting shaft.

[0011] As a preferred solution of the clamping mechanism of the utility model, the first notch includes a first rack installed at the upper end of the first notch, and a second rack installed at the lower end of the first notch.

[0012] The first rack and the second rack have the same number of teeth and the same tooth pitch, and the second rack has a tooth length less than half of the first rack.

[0013] As a preferred solution of the clamping mechanism of the utility model, the telescopic assembly includes a telescopic claw movably connected to the inside of the upper clamping claw, a fixed shaft fixedly connected to the outer surface of the telescopic claw, and a transmission component movably connected to the fixed shaft;

[0014] Wherein, the surface of the telescopic claw is provided with an anti-slip texture.

[0015] As a preferred solution of the clamping mechanism of the utility model, the transmission component includes a sleeve movably connected to the fixed shaft, a gear arranged at one end of the sleeve, and a handwheel arranged at one end of the sleeve.

[0016] As a preferred solution of the clamping mechanism of the utility model, wherein: the telescopic assembly and the first notch are also provided in the same group inside the lower clamping jaw.

[0017] As a preferred solution of the clamping mechanism of the utility model, the fastening assembly includes a fixed sleeve fixedly connected to the surface of the upper clamping jaw, the fixed sleeve is provided with latching teeth, a fastening shaft movably connected inside the fixed sleeve, and a spring arranged inside the fixed sleeve.

[0018] The fastening shaft is made of insulating material, preferably reinforced PBT material, and both ends of the spring are fixedly connected between the fixing sleeve and the boss.

[0019] The clamping mechanism of the utility model has the following beneficial effects: the telescopic component can be adjusted at will to clamp a grounding flat iron of any size, and the clamping component can clamp the flat iron more tightly through the fastening component.

[0020] In view of the fact that in actual use, there is still the problem of unreliable insulation layer protection.

[0021] Therefore, another object of the present invention is to provide an insulating protective cover.

[0022] In order to solve the above technical problems, the utility model also provides the following technical solutions: an insulating protective cover, and the insulating protective cover comprises an insulating shell installed on the outer surface of the clamping assembly, and a connecting assembly arranged at one end of the insulating shell.

[0023] As a preferred solution of the insulating protective cover of the utility model, the insulating shell includes an upper shell installed on the outer surface of the clamping component and movably engaged, a lower shell installed on the outer surface of the clamping component and movably engaged, and a second notch arranged on the surface of the upper shell and the lower shell. The insulating protective cover is made of insulating material, preferably reinforced PBT material.

[0024] After the upper shell and the lower shell are movably engaged, they will not move or fall off the clamping assembly, the second notch is concentric and coaxial with the first notch, and the second notch is smaller than the gear, so the gear cannot move out of the second notch.

[0025] The beneficial effect of the insulating protective cover of the utility model is that the shell can be effectively installed on the outer surface of the clamping assembly through the movable engagement between the shell and the clamping assembly, which plays a role in significantly improving the protective ability of the insulating protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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:

[0027] Figure 1 It is a front view of the utility model.

[0028] Figure 2 This is a working principle diagram of the utility model.

[0029] Figure 3 It is a cross-sectional view of the fastening assembly of the present utility model.

[0030] Figure 4 It is a side view of the utility model.

[0031] Figure 5 It is an enlarged view of the transmission component of the utility model.

[0032] Figure 6It is an exploded view of the utility model. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Example 1

[0037] Reference Figures 1 to 6 , which is the first embodiment of the utility model, and provides a clamping unit 100, which includes a clamping assembly 101, a telescopic assembly 102 arranged at one end of the clamping assembly 101, and a fastening assembly 103 arranged on the outer surface of the clamping assembly 101;

[0038] Specifically, the clamping assembly 101 includes an upper jaw 101a, a first slot 101b formed in the upper jaw 101a, a lower jaw 101c disposed at the bottom end of the upper jaw 101a, a connecting shaft 101d installed to movably connect the upper jaw 101a and the lower jaw 101c, and a torsion spring 101e installed on the outer surface of the connecting shaft 101d.

[0039] The first slot 101b includes a first rack 101b-1 installed at the upper end of the first slot 101b, and a second rack 101b-2 installed at the lower end of the first slot 101b.

[0040] Furthermore, the first rack 101b-1 and the second rack 101b-2 have the same number of teeth and the same tooth pitch, and the tooth length of the second rack 101b-2 is less than half of the first rack 101b-1.

[0041] More preferably, the telescopic assembly 102 comprises a telescopic claw 102a movably connected to the inside of the upper clamping claw 101a, a fixed shaft 102b fixedly connected to the outer surface of the telescopic claw 102a, and a transmission component 102c movably connected to the fixed shaft 102b;

[0042] The surface of the telescopic claw 102a is provided with an anti-slip texture.

[0043] Furthermore, the transmission component 102c includes a sleeve 102c-1 movably connected to the fixed shaft 102b, a gear 102c-2 arranged at one end of the sleeve 102c-1, and a handwheel 102c-3 arranged at one end of the sleeve 102c-1.

[0044] The same set of telescopic components 102 and first slots 101b are also provided inside the lower clamping jaw 101c.

[0045] In summary, when in use, the hand wheel 102c-3 is turned to move the gear 102c-2 on the first rack 101b-1, and then the connecting shaft 101d movably connected to the sleeve 102c-1 is driven to move, which will cause the telescopic claw 102a to move through the connecting shaft 101d fixedly connected thereto. At this time, it moves to an appropriate length, and the hand wheel 102c-2 is pulled outward to move the gear 102c-2 to the second rack 101b-2. At this time, the gear 102c-2 will be locked by the rack to adjust and fix the length of the telescopic claw 102a. After the adjustment is completed, the upper clamping jaw 101a is pressed down to open the connecting shaft 101d movably connected thereto. At this time, the upper clamping jaw 101a is clamped on the grounding flat iron G through the torsion spring 101e.

[0046] Example 2

[0047] Reference Figures 2-3 , which is the second embodiment of the utility model. Different from the previous embodiment, this embodiment provides a fastening assembly 103 including a fixed sleeve 103a fixedly connected to the surface of the upper clamp 101a, a locking tooth 103b is provided on the fixed sleeve 103a, a fastening shaft 103c movably connected inside the fixed sleeve 103a, and a spring 103d arranged inside the fixed sleeve 103a.

[0048] Specifically, the fastening assembly 103 includes a fixed sleeve 103a disposed on the surface of the clamped assembly 101, a latching tooth 103b provided on the fixed sleeve 103a, a fastening shaft 103c movably connected to the inside of the fixed sleeve 103a, and a spring 103d disposed inside the fixed sleeve 103a;

[0049] Furthermore, the fastening shaft 103c includes a shaft body 103c-1 slidably connected to the fixing sleeve 103a, and the outer surface of the shaft body 103c-1 is provided with two identical elastic blocks 103c-2 and a boss 103c-3 arranged on the outer surface of the shaft body 103c-1.

[0050] The fastening shaft 103c is made of insulating material, preferably reinforced PBT material.

[0051] Furthermore, both ends of the spring 103d are fixedly connected between the fixed sleeve 103a and the boss 103c-3.

[0052] In summary, during use, when the clamping assembly 101 clamps the grounding flat iron G, press the shaft 103c-1 to move it downward to the outer surface of the lower shell 201b. At this time, the elastic block 103c-2 on the outer surface of the tight shaft 103c-1 moves to the latch tooth 103b, limiting the shaft 103c-1 so that the shaft 103c-1 is firmly fixed on the shell 201b. When the shaft 103c-1 needs to be removed, just rotate the shaft 103c-1 90° to move the elastic block 103c-2 out of the latch tooth 103b, so that the shaft is popped out through the spring 103d. Because the spring 103d is fixedly connected to the boss 103c-3 and the fixed sleeve 103a, the shaft 103d will reset after popping out, and can be directly pressed the next time it is used.

[0053] Example 3

[0054] Reference Figures 1 to 6 , which is the third embodiment of the utility model. Different from the previous embodiment, this embodiment provides an insulating protective cover, including an insulating shell 201 installed on the outer surface of the clamping assembly 101, and a connecting assembly 202 arranged at one end of the insulating shell 201.

[0055] Specifically, the insulating shell 201 includes an upper shell 201a movably mounted on the outer surface of the clamping assembly 101, a lower shell 201b movably mounted on the outer surface of the clamping assembly 101, and a second notch 201c arranged on the surface of the upper shell 201a and the lower shell 201b. The insulating protective cover is made of insulating material, preferably reinforced PBT material.

[0056] Furthermore, after the upper shell 201a and the lower shell 201b are movably engaged, they will not move or fall off the clamping assembly 101. The second slot 201c is concentric and coaxial with the first slot 101b, and the second slot 201c is smaller than the gear 102c-3, so the gear 102c-3 cannot move out of the second slot 201c.

[0057] In summary, when in use, the upper shell 201a and the lower shell 201b are respectively snap-fitted and installed on the upper clamp 101a and the lower clamp 101c, which ensures a stable and firm installation and will not easily wear and slip due to external force. During installation, the second slot 201c is aligned with the first slot 101b, and when the transmission component 102c is adjusted and fixed, the transmission component 102c will not fall off from the second slot 201c.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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 clamping mechanism, characterized in that: include, A clamping unit (100) comprising a clamping assembly (101), a telescopic assembly (102) arranged at one end of the clamping assembly (101), and a fastening assembly (103) arranged on the outer surface of the clamping assembly (101); The fastening component (103) comprises a fixing sleeve (103a) arranged on the surface of the clamping component (101), a locking tooth (103b) provided on the fixing sleeve (103a), a fastening shaft (103c) movably connected and arranged inside the fixing sleeve (103a), and a spring (103d) arranged inside the fixing sleeve (103a); The fastening shaft (103c) comprises a shaft body (103c-1) slidably connected to the fixing sleeve (103a), the outer surface of the shaft body (103c-1) being provided with two identical elastic blocks (103c-2) and a boss (103c-3) arranged on the outer surface of the shaft body (103c-1).

2. The clamping mechanism according to claim 1, characterized in that: The clamping assembly (101) comprises an upper clamping jaw (101a), the upper clamping jaw (101a) is provided with a first notch (101b), a lower clamping jaw (101c) arranged at the bottom end of the upper clamping jaw (101a), a connecting shaft (101d) installed to movably connect the upper clamping jaw (101a) and the lower clamping jaw (101c), and a torsion spring (101e) installed on the outer surface of the connecting shaft (101d).

3. The clamping mechanism according to claim 2, characterized in that: The first slot (101b) comprises a first rack (101b-1) installed at the upper end of the first slot (101b), and a second rack (101b-2) installed at the lower end of the first slot (101b).

4. The clamping mechanism according to claim 3, characterized in that: The telescopic assembly (102) comprises a telescopic claw (102a) installed inside the upper clamping claw (101a), a fixed shaft (102b) arranged on the outer surface of the telescopic claw (102a), and a transmission component (102c) movably connected to the fixed shaft (102b); Wherein, the surface of the telescopic claw (102a) is provided with an anti-slip texture.

5. The clamping mechanism according to claim 4, characterized in that: The transmission component (102c) comprises a shaft sleeve (102c-1) movably mounted on the fixed shaft (102b), a gear (102c-2) disposed at one end of the shaft sleeve (102c-1), and a hand wheel (102c-3) disposed at one end of the shaft sleeve (102c-1).

6. The clamping mechanism according to claim 3 or 4, characterized in that: The telescopic assembly (102) and the first notch (101b) are also provided in the same group inside the lower clamping jaw (101c).

7. The clamping mechanism according to claim 6, characterized in that: The fastening assembly (103) comprises a fixing sleeve (103a) arranged on the surface of the upper clamping jaw (101a), a locking tooth (103b) provided on the fixing sleeve (103a), a fastening shaft (103c) movably connected and arranged inside the fixing sleeve (103a), and a spring (103d) arranged inside the fixing sleeve (103a).

8. The clamping mechanism according to claim 1 or 7, characterized in that: The spring (103d) is installed and fixedly connected between the fixing sleeve (103a) and the boss (103c-3).

9. An insulating protective cover, characterized in that: It comprises the clamping mechanism as described in any one of claims 1 to 8, and an insulating protective cover (200) which comprises an insulating shell (201) installed on the outer surface of the clamping assembly (101), and a connecting assembly (202) arranged at one end of the insulating shell (201).

10. The insulating protective cover according to claim 9, characterized in that: The insulating shell (201) comprises an upper shell (201a) mounted on the outer surface of the clamping assembly (101), a lower shell (201b) mounted on the outer surface of the clamping assembly (101), and a second notch (201c) arranged on the surfaces of the upper shell (201a) and the lower shell (201b).

Images