Quick mounting structure of fault indicator

Abstract

The utility model discloses a fast installation structure of a fault indicator, which comprises an upper shell and a lower shell which are correspondingly arranged up and down, a lower wire clamping support is fixedly installed in the lower shell, an upper wire clamping support corresponding to the lower wire clamping support in position is arranged in the upper shell, two sides in the upper shell are fixedly connected with guide columns, and the guide columns are fixedly connected with the lower wire clamping support. According to the utility model, through the arrangement of the connection tensioning assembly, the lower end face of the upper shell and the upper end face of the lower shell can be conveniently and rapidly attached, the upper shell and the lower shell can be assembled in an attached mode, and through the arrangement of the self-alignment spiral locking structure, the self-alignment spiral locking structure can be conveniently and rapidly assembled. When the lower shell and the upper shell are locked and fixed, constant upward thrust is provided, it is guaranteed that the M6 threaded screw can be accurately locked and attached to the upper shell, the fixing mode of the upper shell and the lower shell of a fault indicator in the prior art is changed into a screw locking mode from an original spring pressing mode, and reliability and installation convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to a quick installation structure of a fault indicator. Background Art

[0002] A fault indicator refers to a device installed on a power line (overhead line, cable and busbar) to indicate a fault current. Most fault indicators can only identify and indicate a short-circuit fault by detecting the characteristics of the short-circuit current. At present, the locking and fixing structures of fault indicators in the power field are mainly divided into a spring pressing structure and a screw locking structure. In the former, when in normal use, the upper and lower shells shake slightly under the influence of weather such as strong wind, affecting the product stability. In the latter, when installing, the product must be directly above the personnel, and the installer needs to support the weight of the entire product and the insulating rod upward, which requires high installation environment and physical strength of the construction personnel. Moreover, when installing live, it is easy to fail in installation and result in repeated labor. Therefore, it is necessary to design a quick installation structure of a fault indicator to improve the above problems. Content of the Utility Model

[0003] 1. Technical problems to be solved by the utility model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a quick installation structure of a fault indicator, aiming to solve the problems that the existing locking and fixing structures of fault indicators have poor installation stability, require high installation environment and physical strength of construction personnel, are easy to fail in installation, and result in repeated labor.

[0005] 2. Technical solutions

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] The quick installation structure of a fault indicator includes an upper shell and a lower shell arranged corresponding to each other up and down. A lower wire clamping bracket is fixedly installed inside the lower shell, and an upper wire clamping bracket corresponding to the position of the lower wire clamping bracket is arranged inside the upper shell. Guide columns are fixedly connected to both sides inside the upper shell, and guide holes corresponding to the positions of the guide columns are opened on the upper wire clamping bracket. The upper wire clamping bracket is slidably connected with the guide columns through the guide holes. A housing pressing spring is sleeved outside the guide columns between the bottom of the upper wire clamping bracket and the bottom end inside the upper shell. A connection and tensioning assembly is arranged between the lower shell and the upper wire clamping bracket, and the connection and tensioning assembly is used to close the upper shell and the lower shell closer. A self-aligning screw locking structure is arranged between the outer walls of the lower shell and the upper shell, and the self-aligning screw locking structure is used to lock the upper shell and the lower shell.

[0008] Preferably, the connection and tensioning assembly includes a thick screw rod and a copper nut matching the thick screw rod. The copper nut matching the thick screw rod is embedded and installed on the upper wire clamping bracket. Installation holes for the thick screw rod to pass through are provided on the lower housing and the lower wire clamping bracket. The top end of the thick screw rod passes through the installation hole and is threadedly connected to the copper nut matching the thick screw rod.

[0009] Preferably, the bottom end of the thick screw rod extends to the outside of the lower housing and is fixedly connected with a hanging ring through a pin.

[0010] Preferably, guide rods are fixedly connected to both sides of the upper housing, and guide sleeves are fixedly connected to both sides of the lower housing. One end of the guide rod is slidably installed in the guide sleeve.

[0011] Preferably, the self-aligning screw locking structure includes a connecting column fixedly connected to the outer wall of the lower housing and a connecting ear plate fixedly connected to the outer wall of the bottom end of the upper housing. The connecting ear plate corresponds to the position of the connecting column. An installation cavity penetrating it vertically is opened inside the connecting column. An M6 threaded screw rod is slidably installed in the installation cavity. An embedded M6 nut is embedded and installed on the connecting ear plate. The top end of the M6 threaded screw rod is threadedly connected to the embedded M6 nut.

[0012] Preferably, a flared groove is opened at the top end of the installation cavity. A limiting block is arranged on the outer side of the part of the M6 threaded screw rod located in the flared groove. A screw spring is sleeved on the outer side of the M6 threaded screw rod between the bottom of the limiting block and the inner bottom end of the flared groove.

[0013] Preferably, the bottom end of the M6 threaded screw rod extends to the outside of the connecting column and is fixedly connected with a locking rotary disc through a small pin.

[0014] Preferably, a receiving groove is opened at the bottom of the lower housing at the position of the installation cavity. The receiving groove is used for the top end of the locking rotary disc to enter. A gasket is arranged between the top end of the locking rotary disc and the inner wall of the receiving groove. The gasket is sleeved on the outer side of the M6 threaded screw rod.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The utility model is provided with a connecting and tensioning assembly, which facilitates the quick fitting of the lower end face of the upper shell with the upper end face of the lower shell, and fits and assembles the upper shell and the lower shell. Through the self-aligning screw locking structure, during the process of the upper shell moving and fitting with the lower shell, the connecting ear plate contacts the top of the M6 threaded screw and presses the M6 threaded screw into the installation cavity, so that the limiting block on the M6 threaded screw presses the screw compression spring. On the contrary, the screw compression spring has an upward reaction force on the M6 threaded screw, ensuring that the M6 threaded screw can be accurately aligned and locked and embedded with the M6 nut. After the upper shell and the lower shell are fitted, the M6 threaded screw is rotated to a certain position to fit and rotate with the embedded M6 nut for locking, changing the fixing of the upper shell and the lower shell of the fault indicator in the prior art from the original spring pressing method to a screw locking method, increasing the reliability and installation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is an overall three-dimensional structure diagram of the quick installation structure of the fault indicator;

[0019] Figure 2 FIG. is a cross-sectional structure diagram of the quick installation structure of the fault indicator.

[0020] In the figure: 1, lower shell; 2, upper shell; 3, thick screw; 4, guide post; 5, upper wire clamping bracket; 6, copper nut matching the thick screw; 7, housing compression spring; 8, lifting ring; 9, pin; 10, self-aligning screw locking structure; 101, connecting column; 102, installation cavity; 103, M6 threaded screw; 104, screw compression spring; 105, locking rotating disc; 106, small pin; 107, gasket; 108, connecting ear plate; 109, embedded M6 nut; 11, lower wire clamping bracket; 12, guide rod; 13, guide sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment:

[0023] Please refer to Figure 1 - Figure 2, this embodiment provides a quick installation structure for a fault indicator, including an upper housing 2 and a lower housing 1 arranged corresponding to each other up and down. A lower wire clamping bracket 11 is fixedly installed inside the lower housing 1. An upper wire clamping bracket 5 corresponding to the position of the lower wire clamping bracket 11 is arranged inside the upper housing 2. Guide columns 4 are fixedly connected to both sides inside the upper housing 2. Guide holes corresponding to the positions of the guide columns 4 are opened on the upper wire clamping bracket 5. The upper wire clamping bracket 5 is slidably connected to the guide columns 4 through the guide holes. A pressing housing spring 7 is sleeved outside the guide columns 4 between the bottom of the upper wire clamping bracket 5 and the bottom end inside the upper housing 2. The guide columns 4 and the pressing housing spring 7 are preferably four groups. A connecting and tensioning assembly is arranged between the lower housing 1 and the upper wire clamping bracket 5. The connecting and tensioning assembly is used to close the upper housing 2 and the lower housing 1 close to each other. A self-aligning screw locking structure 10 is arranged between the outer walls of the lower housing 1 and the upper housing 2. The self-aligning screw locking structure 10 is used to lock the upper housing 2 and the lower housing 1. When in use, by passing the power line through between the lower wire clamping bracket 11 on the lower housing 1 and the upper wire clamping bracket 5 on the upper housing 2, then pulling the upper housing 2 and the lower housing 1 close to fit through the connecting and tensioning assembly, and fixing the power line, and then locking and fixing the lower housing 1 and the upper housing 2 through the self-aligning screw locking structure 10, the stability of the connection is improved.

[0024] In this embodiment, as Figure 2 shown, the connecting and tensioning assembly includes a thick screw 3 and a copper nut 6 matching the thick screw. The copper nut 6 matching the thick screw is embedded and installed on the upper wire clamping bracket 5. Installation holes for the thick screw 3 to pass through are opened on the lower housing 1 and the lower wire clamping bracket 11. The top end of the thick screw 3 passes through the installation hole and is threadedly connected inside the copper nut 6 matching the thick screw. By rotating the thick screw 3, the copper nut 6 matching the thick screw moves along the axial direction of the thick screw 3. The copper nut 6 matching the thick screw moves the upper wire clamping bracket 5 towards the lower housing 1. As the upper wire clamping bracket 5 moves, it squeezes the pressing housing spring 7, thereby moving the upper housing 2, realizing the fit of the lower end face of the upper housing 2 and the upper end face of the lower housing 1, and clamping and fixing the power line through the upper wire clamping bracket 5 and the lower wire clamping bracket 11, which is convenient for the fitting and assembly of the upper housing 2 and the lower housing 1, with a simple structure and convenient assembly.

[0025] In this embodiment, as Figure 2 shown, the bottom end of the thick screw 3 extends to the outside of the lower housing 1 and is fixedly connected with a lifting ring 8 through a pin 9. By using an auxiliary tool to rotate the lifting ring 1, the rotation operation of the thick screw 3 is realized, improving the operation convenience.

[0026] In this embodiment, the connecting and tensioning assembly is preferably one group. Of course, according to different requirements of the fault indicator design, multiple groups of connecting and tensioning assemblies can be correspondingly arranged.

[0027] In this embodiment, as Figure 1As shown, guide rods 12 are fixedly connected to both sides of the upper housing 2, and guide sleeves 13 are fixedly connected to both sides of the lower housing 1. One end of the guide rod 12 is slidably installed in the guide sleeve 13. When the upper housing 2 moves and fits with the lower housing 1, the guide rod 12 slides in the guide sleeve 13 to limit and guide the upper housing 2, improving stability.

[0028] In this embodiment, as Figure 2 shown, the self-aligning screw locking structure 10 includes a connecting column 101 fixedly connected to the outer wall of the lower housing 1 and a connecting ear plate 108 fixedly connected to the outer wall of the bottom end of the upper housing 2. The connecting ear plate 108 corresponds to the position of the connecting column 101. An installation cavity 102 penetrating it vertically is opened inside the connecting column 101. An M6 threaded screw 103 is slidably installed in the installation cavity 102. An embedded M6 nut 109 is embedded and installed on the connecting ear plate 108. The top end of the M6 threaded screw 103 is threadedly connected to the embedded M6 nut 109. An expansion slot is opened at the top end of the installation cavity 102. A limiting block is arranged on the outside of the part of the M6 threaded screw 103 located in the expansion slot. A screw compression spring 104 is sleeved on the outside of the M6 threaded screw 103 between the bottom of the limiting block and the inner bottom end of the expansion slot. During the process of the upper housing 2 moving and fitting with the lower housing 1, the connecting ear plate 108 contacts the top end of the M6 threaded screw 103 and squeezes the M6 threaded screw 103 into the installation cavity 102, so that the limiting block on the M6 threaded screw 103 squeezes the screw compression spring 104. On the contrary, the screw compression spring 104 has an upward reaction force on the M6 threaded screw 103, ensuring that the M6 threaded screw 103 can accurately align and lock the embedded M6 nut 109. After the upper housing 2 and the lower housing 1 are fitted, the M6 threaded screw 103 is rotated to a certain position to fit and rotate with the embedded M6 nut 109 for locking. The fixing of the upper housing 2 and the lower housing 1 of the fault indicator in the prior art is changed from the original spring pressing method to a screw locking method, increasing reliability and installation convenience.

[0029] In this embodiment, as Figure 2 shown, the bottom end of the M6 threaded screw 103 extends outside the connecting column 101 and is fixedly connected to a locking rotary disc 105 through a small pin 106. An auxiliary tool is used to rotate the locking rotary disc 105, thereby realizing the rotation operation of the M6 threaded screw 103 and improving operation convenience.

[0030] In this embodiment, as Figure 2As shown in the figure, a receiving groove is provided at the bottom of the lower housing 1 and located at the installation cavity 102. The receiving groove is used for the top end of the locking rotary disc 105 to enter. A gasket 107 is provided between the top end of the locking rotary disc 105 and the inner wall of the receiving groove. The gasket 107 is sleeved outside the M6 threaded screw 103. When the M6 threaded screw 103 is tightened, the top end of the M6 threaded screw 103 is placed in the receiving groove and presses against the gasket 107, improving the anti-loosening effect on the M6 threaded screw 103.

[0031] In this embodiment, multiple groups of self-aligning spiral locking structures 10 are provided on the outer sides of the upper housing 2 and the lower housing 1 around the perimeter, improving the locking and fixing effect.

[0032] Working principle: During use, pass the power line through the lower wire clamping bracket 11 on the lower housing 1 and the upper wire clamping bracket 5 on the upper housing 2. Rotate the sling ring 1 with the aid of a tool. The sling ring 1 drives the thick screw 3 to rotate, causing the copper nut 6 matching the thick screw to move along the axial direction of the thick screw 3. The copper nut 6 matching the thick screw moves the upper wire clamping bracket 5 towards the lower housing 1. As the upper wire clamping bracket 5 moves, it squeezes the housing compression spring 7, thereby moving the upper housing 2 to make the lower end face of the upper housing 2 fit with the upper end face of the lower housing 1. The power line is clamped and fixed by the upper wire clamping bracket 5 and the lower wire clamping bracket 11. Fit and assemble the upper housing 2 and the lower housing 1. During this process, the connecting ear plate 108 contacts the top end of the M6 threaded screw 103 and squeezes the M6 threaded screw 103 into the installation cavity 102. The limiting block on the M6 threaded screw 103 squeezes the screw compression spring 104. On the contrary, the screw compression spring 104 has an upward reaction force on the M6 threaded screw 103, ensuring that the M6 threaded screw 103 can be accurately positioned and locked into the embedded M6 nut 109. After the upper housing 2 and the lower housing 1 are fitted, rotate the locking rotary disc 105 with the aid of a tool. The locking rotary disc 105 drives the M6 threaded screw 103 to rotate. The M6 threaded screw 103 rotates to a certain position and fits with the embedded M6 nut 109 for rotary locking, changing the fixation of the upper housing 2 and the lower housing 1 of the fault indicator in the prior art from the original spring pressing method to a screw locking method, increasing the reliability and installation convenience.

[0033] The above embodiments are the preferred implementation solutions of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A quick installation structure of a fault indicator, comprising an upper shell (2) and a lower shell (1) arranged correspondingly in the upper and lower parts, wherein a lower wire clamping bracket (11) is fixedly installed inside the lower shell (1), and an upper wire clamping bracket (5) corresponding to the position of the lower wire clamping bracket (11) is arranged inside the upper shell (2), characterized in that: Guide columns (4) are fixedly connected to both sides of the interior of the upper shell (2); a guide hole corresponding to the position of the guide column (4) is opened on the upper wire clamping bracket (5); the upper wire clamping bracket (5) is slidably connected to the guide column (4) through the guide hole; a compression shell spring (7) is sleeved between the bottom of the upper wire clamping bracket (5) and the bottom end of the interior of the upper shell (2) and located on the outside of the guide column (4); a connecting tensioning assembly is arranged between the lower shell (1) and the upper wire clamping bracket (5); the connecting tensioning assembly is used to close the upper shell (2) and the lower shell (1); a self-aligning spiral locking structure (10) is arranged between the outer wall of the lower shell (1) and the upper shell (2); the self-aligning spiral locking structure (10) is used to lock the upper shell (2) and the lower shell (1).

2. The quick installation structure of the fault indicator according to claim 1, characterized in that: The connecting and tightening assembly comprises a thick screw (3) and a copper nut (6) matching the thick screw. The copper nut (6) matching the thick screw is embedded in the upper wire clamping bracket (5). The lower shell (1) and the lower wire clamping bracket (11) are provided with mounting holes for the thick screw (3) to pass through. The top end of the thick screw (3) passes through the mounting hole and is threadedly connected to the copper nut (6) matching the thick screw.

3. The quick installation structure of the fault indicator according to claim 2, characterized in that: The bottom end of the thick screw rod (3) extends to the outside of the lower housing (1) and is fixedly connected to a lifting ring (8) via a latch pin (9).

4. The quick installation structure of the fault indicator according to claim 1, characterized in that: Both sides of the upper shell (2) are fixedly connected with guide rods (12), and both sides of the lower shell (1) are fixedly connected with guide sleeves (13), and one end of the guide rod (12) is slidably installed in the guide sleeve (13).

5. The quick installation structure of the fault indicator according to claim 1, characterized in that: The self-aligning spiral locking structure (10) comprises a connecting column (101) fixedly connected to the outer wall of the lower shell (1) and a connecting ear plate (108) fixedly connected to the outer wall of the bottom end of the upper shell (2); the connecting ear plate (108) corresponds to the position of the connecting column (101); a mounting cavity (102) is vertically opened inside the connecting column (101) and passes through the connecting column; an M6 threaded screw (103) is slidably installed in the mounting cavity (102); an embedded M6 nut (109) is embedded in the connecting ear plate (108); and the top end of the M6 ​​threaded screw (103) is threadedly connected in the embedded M6 nut (109).

6. The quick installation structure of the fault indicator according to claim 5, characterized in that: A flaring groove is formed at the top of the installation cavity (102), a limit block is provided on the outside of the part of the M6 ​​threaded screw (103) located inside the flaring groove, and a screw compression spring (104) is sleeved between the bottom of the limit block and the bottom end of the flaring groove and located outside the M6 ​​threaded screw (103).

7. The quick installation structure of the fault indicator according to claim 5, characterized in that: The bottom of the M6 ​​threaded screw (103) extends to the outside of the connecting column (101) and is fixedly connected to a locking rotating disk (105) via a small latch (106).

8. The quick installation structure of the fault indicator according to claim 1, characterized in that: A receiving groove is provided at the bottom of the lower shell (1) and located at the installation cavity (102), and the receiving groove is used for the top end of the locking rotating disk (105) to enter. A gasket (107) is provided between the top end of the locking rotating disk (105) and the inner wall of the receiving groove, and the gasket (107) is sleeved on the outside of the M6 ​​threaded screw (103).

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