Wire pressing spring and wire clamping device

Abstract

The utility model belongs to the technical field of circuit fault detection, and discloses a wire pressing spring and a wire clamping device. The wire pressing spring comprises a wire pressing main body and two torsional springs, the wire pressing main body comprises a cross rod and two wire pressing bent rods, and the first ends of the two wire pressing bent rods are connected with the two ends of the cross rod respectively; the two torsion springs are arranged on the two sides of the wire pressing main body respectively, and the torsion springs are connected to the second end of the wire pressing bent rod and used for providing torsion force; and the wire pressing bent rod partially protrudes out of one side, deviating from the torsion spring, of the cross rod to form an avoiding space. During downward pressing, the two wire pressing bent rods are respectively contacted from two positions and compress and fix a line, so that the firmness of wire clamping is improved; by arranging the avoiding space, the movable plate can be effectively avoided, the problem of cooperation of falling of the movable plate and the wire pressing spring does not need to be considered, even if the wire pressing spring falls after lagging behind the movable plate, the movable plate can penetrate through the avoiding space when the wire pressing spring falls, the wire pressing spring cannot press the movable plate, and therefore it is guaranteed that the fault indicator is firmly installed; and the whole detection equipment can operate normally and be used safely.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit fault detection, in particular to a wire pressing spring and a wire clamping device. Background Art

[0002] In order to detect and identify power line faults, fault indicators are installed on overhead lines or power lines. Traditional fault indicators are installed on the line through a line clamping device. The line clamping device includes a movable plate and a line pressing spring. When installed, the movable plate is in an open state, and the line pressing spring for clamping is erected, so that the line can be placed in the clamping range of the line pressing spring; after installation, the movable plate falls, and the line pressing spring presses down to clamp the line, so that the line clamping device is in a closed state.

[0003] In the prior art, the wire-compression spring and the movable plate are positioned relative to each other and rotate in opposite directions. When the wire-holding device is disturbed by external factors, the wire-compression spring is likely to lag behind the movable plate in falling, causing the cross bar of the wire-compression spring to press the movable plate. The wire-compression spring will not be able to press the line, causing the fault indicator to be loosely installed, affecting the normal operation and safe use of the overall detection equipment.

[0004] That is, when the existing wire clamping device is disturbed by external factors, the wire pressing spring is easy to lag behind the moving plate in falling, and there is a disadvantage that the cross bar of the wire pressing spring presses the moving plate but cannot press the line, so that the fault indicator is not installed firmly. Utility Model Content

[0005] The utility model aims to provide a wire-compression spring and a wire-holding device, so as to solve the problem that when the existing wire-holding device is disturbed by external factors, the wire-compression spring is easy to lag behind the falling of the moving plate, and the cross bar of the wire-compression spring presses the moving plate but cannot press the line, so that the fault indicator is not firmly installed.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a wire pressing spring, which comprises:

[0008] The wire pressing body comprises a cross bar and two wire pressing bent bars, wherein the first ends of the two wire pressing bent bars are respectively connected to the two ends of the cross bar;

[0009] Two torsion springs are respectively arranged on both sides of the wire pressing body, and the torsion springs are connected to the second end of the wire pressing bending rod to provide a torsional force;

[0010] The wire pressing bent rod portion protrudes from a side of the cross bar away from the torsion spring, so that the cross bar and the two wire pressing bent rods are combined to form an escape space for avoiding the moving plate.

[0011] As an alternative technical solution of the wire pressing spring, the wire pressing bent rod includes a transition section, and both ends of the transition section bend and extend to form a first connection section and a second connection section respectively. One end of the first connection section away from the transition section is connected to the cross bar, and one end of the second connection section away from the transition section is connected to the torsion spring. An avoidance space is formed between the cross bar and the first connection sections of the two wire pressing bent rods.

[0012] As an alternative technical solution of the wire pressing spring, the wire pressing spring further includes an anti-slip layer provided corresponding to each wire pressing bent rod, and the anti-slip layer wraps the transition section.

[0013] As an alternative technical solution of the wire pressing spring, both ends of the anti-slip layer extend and wrap part of the first connection section and part of the second connection section respectively.

[0014] As an alternative technical solution of the wire pressing spring, the transition section is arranged at a preset distance interval from the cross bar, and the distance between the end edge of the anti-slip layer and the cross bar is at most half of the preset distance.

[0015] As an alternative technical solution of the wire pressing spring, the length of the anti-slip layer wrapping the first connection section is equal to or greater than the length of the anti-slip layer wrapping the second connection section;

[0016] And / or, the anti-slip layer is made of silica gel material, rubber material or foam material.

[0017] As an alternative technical solution of the wire pressing spring, the torsion spring includes a spiral section and a limiting section. Both ends of the spiral section are respectively connected to the wire pressing bent rod and the limiting section, and the limiting section is used for connecting the wire clamping device.

[0018] As an alternative technical solution of the wire pressing spring, the torsion spring is made of stainless steel material.

[0019] As an alternative technical solution of the wire pressing spring, the pitch of the spiral sections of the two torsion springs is the same.

[0020] The present utility model provides a wire clamping device, which includes a main body structure, a rotating shaft, a moving plate and the wire pressing spring. The moving plate is hinged to the main body structure, and the torsion spring of the wire pressing spring is arranged on the main body structure through the rotating shaft.

[0021] Beneficial effects:

[0022] The utility model provides a wire pressing spring, which comprises a wire pressing body and two torsion springs, wherein the wire pressing body comprises a cross bar and two wire pressing curved rods, wherein the first ends of the two wire pressing curved rods are respectively connected to the two ends of the cross bar; the two torsion springs are respectively arranged on the two sides of the wire pressing body, and the torsion springs are connected to the second ends of the wire pressing curved rods for providing a torsion force; the wire pressing curved rod part protrudes from the side of the cross bar away from the torsion spring, so that the cross bar and the two wire pressing curved rods are enclosed to form an escape space, and the escape space is used to escape a moving plate. When pressing down, the two wire pressing curved rods contact and press the fixed line from two positions respectively, thereby improving the firmness of the clamping line; by arranging the wire pressing curved rod and the cross bar to enclose the escape space to form an escape space, the moving plate can be effectively avoided, and there is no need to consider the coordination problem of the moving plate and the wire pressing spring falling; even if the wire pressing spring lags behind the moving plate in falling, the moving plate can pass through the escape space when the wire pressing spring falls, thereby ensuring that the wire pressing spring will not press the moving plate.

[0023] The utility model also provides a wire-holding device, which includes a main structure, a rotating shaft, a movable plate and a wire-holding spring. The movable plate is hinged on the main structure, and the torsion spring of the wire-holding spring is arranged on the main structure through the rotating shaft. By arranging the wire-holding spring with an avoidance space, the wire-holding spring will not press the movable plate, thereby ensuring that the fault indicator is firmly installed and the overall detection equipment can operate normally and be used safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the wire compression spring provided by the embodiment of the utility model. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of the wire compression spring provided by the embodiment of the utility model. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the structure of the wire compression spring provided by the embodiment of the utility model. Figure 3 ;

[0027] Figure 4 This is a schematic diagram of the structure of the wire clamping device provided in the embodiment of the utility model. Figure 1 ;

[0028] Figure 5 This is a schematic diagram of the structure of the wire clamping device provided in the embodiment of the utility model. Figure 2 ;

[0029] Figure 6 The structure diagram of the wire clamping device and the pressed wire provided by the embodiment of the utility model is shown in FIG. Figure 1 ;

[0030] Figure 7 The structure diagram of the wire clamping device and the pressed wire provided by the embodiment of the utility model is shown in FIG. Figure 2 .

[0031] In the figure:

[0032] 100, pressure wire spring; 200, moving plate; 300, rotating shaft; 400, main body structure;

[0033] 10, pressure wire main body; 11, cross bar; 12, pressure wire bent bar; 121, first connection section; 122, second connection section;

[0034] 20, torsion spring; 21, spiral section; 22, limiting section;

[0035] 30, anti-slip layer;

[0036] A, circuit. Specific embodiments

[0037] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0038] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0040] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0041] like Figures 1 to 4 As shown, the first aspect of the present embodiment relates to a wire pressing spring 100, which includes a wire pressing body 10 and two torsion springs 20. The wire pressing body 10 includes a cross bar 11 and two wire pressing bent rods 12. The first ends of the two wire pressing bent rods 12 are respectively connected to the two ends of the cross bar 11, and the two torsion springs 20 are respectively arranged on both sides of the wire pressing body 10. The torsion springs 20 are connected to the second ends of the wire pressing bent rods 12 to provide torsional force; the wire pressing bent rods 12 partially protrude from the side of the cross bar 11 away from the torsion springs 20, so that the cross bar 11 and the two wire pressing bent rods 12 enclose an avoidance space, and the avoidance space is used to avoid the moving plate 200.

[0042] When pressing down, the two wire-pressing bent rods 12 contact and press the line from two positions respectively, thereby improving the firmness of the wire clamping; by arranging the wire-pressing bent rods 12 and the cross bar 11 to form an avoidance space, the movable plate 200 can be effectively avoided without considering the coordination problem of the falling of the movable plate 200 and the wire-pressing spring 100. Even if the wire-pressing spring 100 lags behind the falling of the movable plate 200, the movable plate 200 can also pass through the avoidance space when the wire-pressing spring 100 falls, ensuring that the wire-pressing spring 100 will not press the movable plate 200.

[0043] Specifically, the cross bar 11 extends in the horizontal direction, and the cross bar 11 can connect the two wire pressing bending rods 12. The length of the cross bar 11 can be set according to actual needs.

[0044] Furthermore, the wire pressing curved rod 12 includes a transition section, and the two ends of the transition section are bent and extended to form a first connecting section 121 and a second connecting section 122 respectively. The end of the first connecting section 121 away from the transition section is connected to the cross bar 11, and the end of the second connecting section 122 away from the transition section is connected to the torsion spring 20, and an escape space is formed between the cross bar 11 and the first connecting sections 121 of the two wire pressing curved rods 12. By setting the two ends of the transition section to be bent and extended to form the first connecting section 121 and the second connecting section 122, and forming an escape space through the cross bar 11 and the first connecting sections 121 of the two wire pressing curved rods 12, the wire pressing curved rod 12 partially protrudes from one side of the cross bar 11, and the wire pressing curved rod 12 can fix the pressed wire when it is pressed down, and the movable plate 200 can pass through the escape space.

[0045] In this embodiment, the transition section is parallel to the cross bar 11 and is arranged at a preset distance interval; both the first connecting section 121 and the second connecting section 122 are perpendicular to the cross bar 11. By providing a transition section parallel to the cross bar 11 and providing a first connecting section 121 and a second connecting section 122 perpendicular to the cross bar 11, a U-shaped avoidance space is formed by enclosing the first connecting section 121, the second connecting section 122 and the cross bar 11. The wire pressing spring 100 is integrally concave and symmetric on both sides. In other embodiments, the length of the transition section and the angles of the first connecting section 121 and the second connecting section 122 can be adjusted according to actual needs.

[0046] To improve the stability of wire pressing, the wire pressing spring 100 further includes an anti-slip layer 30. The anti-slip layer 30 is provided corresponding to the wire pressing bent bars 12 one by one, and the anti-slip layer 30 wraps the transition section. By providing the anti-slip layer 30 on the transition section, when the wire pressing spring 100 is used, the transition section of the wire pressing bent bar 12 contacts the wire to be pressed, achieving anti-slip and increasing the friction between the wire pressing spring 100 and the wire to be pressed, thereby effectively improving the wire pressing stability.

[0047] Furthermore, both ends of the anti-slip layer 30 respectively extend to wrap a part of the first connecting section 121 and a part of the second connecting section 122. Preferably, the distance between the end edge of the anti-slip layer 30 and the cross bar 11 is at most half of the preset distance; the length of the anti-slip layer 30 wrapping the first connecting section 121 is equal to or greater than the length of the anti-slip layer 30 wrapping the second connecting section 122. For wires to be pressed with different sizes, when the wire pressing bent bar 12 is pressed down, the positions of the first connecting section 121 and the second connecting section 122 close to the transition section may also contact the wire to be pressed. By providing both ends of the anti-slip layer 30 to extend and wrap to the first connecting section 121 and the second connecting section 122 and limiting the length of the anti-slip layer 30 wrapped, it is ensured that when the wire pressing bent bar 12 is pressed down, the wire to be pressed contacts the anti-slip layer 30 and does not directly contact the first connecting section 121 or the second connecting section 122, further ensuring the wire pressing stability.

[0048] In this embodiment, there are two anti-slip layers 30. The two anti-slip layers 30 respectively wrap the outsides of the two wire pressing bent bars 12. The length of the anti-slip layer 30 wrapping the first connecting section 121 is slightly greater than the length of the anti-slip layer 30 wrapping the second connecting section 122; the anti-slip layer 30 is made of silica gel material; the silica gel is wrapped around the wire pressing bent bar 12 by a module to form the anti-slip layer 30. In other embodiments, the anti-slip layer 30 can also be made of rubber material or foam material.

[0049] Specifically, the torsion spring 20 includes a helical section 21 and a limiting section 22. The two ends of the helical section 21 are respectively connected to the wire-pressing bent rod 12 and the limiting section 22, and the limiting section 22 is used to connect the wire-clamping device. In this embodiment, the limiting section 22 extends along the axial direction of the helical section 21; the torsion spring 20 is made of stainless steel; the pitches of the helical sections 21 of the two torsion springs 20 are the same. By providing the helical section 21 to provide torsional force, and by providing the limiting section 22 to fix and limit the torsion spring 20 on the wire-clamping device. In other embodiments, the limiting section 22 may also extend in a direction perpendicular to the axis of the helical section 21.

[0050] In this embodiment, the number of turns of the helical section 21 is 6 turns. In other embodiments, the number of turns of the helical section 21 (i.e., the number of turns of the torsion spring 20) can also be adjusted according to actual needs.

[0051] As Figures 4 to 7 shown, the second aspect of this embodiment also relates to a wire-clamping device, which includes a main body structure 400, a rotating shaft 300, a moving plate 200, and a wire-pressing spring 100. The moving plate 200 is hinged to the main body structure 400, and the torsion spring 20 of the wire-pressing spring 100 is arranged on the main body structure 400 through the rotating shaft 300. In this embodiment, the wire to be pressed is taken as wire A for example.

[0052] The main body structure 400 includes a bearing block, a long column and a short column arranged oppositely. The long column and the short column are respectively arranged on both sides of the bearing block. The bearing block is V-shaped, and an anti-slip pad is provided on the bearing block for placing wire A; the opening position of the wire-clamping device is between the long column and the short column. One end of the moving plate 200 is hinged to the short column, and the other end of the moving plate 200 overlaps on the long column; the torsion spring 20 of the wire-pressing spring 100 is sleeved outside the rotating shaft 300, and the rotating shaft 300 passes through the long column of the main body structure 400. In this embodiment, the wire-clamping device further includes a straight rod compression spring, which is arranged on the short column and below the moving plate 200. The straight rod compression spring is arranged opposite to the wire-pressing spring 100 and is used to cooperate with the wire-pressing spring 100 to fix wire A.

[0053] It can be understood that how the wire-clamping device specifically switches between the open state and the closed state and is limited can be set with reference to the prior art, and will not be elaborated here. The following is the specific use process of the wire-clamping device:

[0054] See Figure 6 , when the moving plate 200 and the wire-pressing spring 100 are rotated up, the moving plate 200 and the wire-pressing spring 100 stand up vertically. The cross bar 11 of the wire-pressing spring 100 contacts and is limited by the long column, so that the opening of the wire-clamping device is in the open state; at this time, wire A is placed on the anti-slip pad of the wire-clamping device. Among them, the cross bar 11 of the wire-pressing spring 100 can contact the long column when the wire-pressing spring 100 is rotated up or down and does not exceed the height of the long column.

[0055] Then, control the movable plate 200 and the wire pressing spring 100 to press down, see Figure 7 , when pressing down, since the wire pressing spring 100 is provided with an avoidance space, the movable plate 200 and the wire pressing spring 100 will not interfere with each other. Even if the wire pressing spring 100 lags behind the movable plate 200 and falls, the movable plate 200 can pass through the avoidance space when the wire pressing spring 100 falls, and the wire pressing spring 100 will not press on the movable plate 200. Finally, the wire clamping device reaches the closed state, with simple operation, making the fault indicator firmly installed, and the wire clamping device can be reused.

[0056] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A wire-compression spring, characterized in that: include: The wire pressing body (10) comprises a cross bar (11) and two wire pressing bent bars (12), wherein the first ends of the two wire pressing bent bars (12) are respectively connected to the two ends of the cross bar (11); Two torsion springs (20) are respectively arranged on both sides of the wire pressing body (10), and the torsion springs (20) are connected to the second end of the wire pressing bending rod (12) to provide a torsional force; The wire pressing bent rod (12) partially protrudes from the side of the cross rod (11) away from the torsion spring (20), so that the cross rod (11) and the two wire pressing bent rods (12) enclose a space for avoiding the moving plate (200).

2. The wire compression spring according to claim 1, characterized in that: The wire pressing curved rod (12) comprises a transition section, and two ends of the transition section are bent and extended to form a first connecting section (121) and a second connecting section (122) respectively; one end of the first connecting section (121) away from the transition section is connected to the cross bar (11), and one end of the second connecting section (122) away from the transition section is connected to the torsion spring (20); the avoidance space is formed between the cross bar (11) and the first connecting sections (121) of the two wire pressing curved rods (12).

3. The wire compression spring according to claim 2, characterized in that: The wire-pressing spring further comprises an anti-slip layer (30) arranged in one-to-one correspondence with the wire-pressing bending rod (12), and the anti-slip layer (30) is wrapped around the transition section.

4. The wire compression spring according to claim 3, characterized in that: Two ends of the anti-slip layer (30) respectively extend to wrap around a portion of the first connecting section (121) and a portion of the second connecting section (122).

5. The wire compression spring according to claim 3, characterized in that: The transition section and the cross bar (11) are arranged at a preset distance, and the distance between the end edge of the anti-slip layer (30) and the cross bar (11) is at most half of the preset distance.

6. The wire compression spring according to claim 3, characterized in that: The length of the anti-slip layer (30) wrapped around the first connecting section (121) is equal to or greater than the length of the anti-slip layer (30) wrapped around the second connecting section (122); And / or, the anti-slip layer (30) is made of silicone material, rubber material or foam material.

7. The wire compression spring according to claim 1, characterized in that: The torsion spring (20) comprises a spiral section (21) and a limiting section (22); two ends of the spiral section (21) are respectively connected to the wire pressing bending rod (12) and the limiting section (22); and the limiting section (22) is used to connect a wire clamping device.

8. The wire compression spring according to any one of claims 1 to 7, characterized in that: The torsion spring (20) is made of stainless steel.

9. The wire compression spring according to any one of claims 1 to 7, characterized in that: The pitches of the helical sections (21) of the two torsion springs (20) are the same.

10. The wire clamping device is characterized in that: It comprises a main structure (400), a rotating shaft (300), a movable plate (200) and a wire-compression spring as described in any one of claims 1 to 9, wherein the movable plate (200) is hinged to the main structure (400), and the torsion spring (20) of the wire-compression spring is arranged on the main structure (400) through the rotating shaft (300).

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