Grounding bolt fastener

Abstract

The utility model relates to the technical field of grounding bolts, and discloses a grounding bolt fastener which comprises a bolt column, a right-hand thread groove is formed in the outer wall of the bolt column, a nut is installed on the right-hand thread groove in a threaded mode, a cavity with an opening in the top end is fixedly formed in the bolt column, and two lock holes which are symmetrically formed and communicated with the cavity are formed in the bolt column. The inner walls of the two lock holes are both connected with lock plates in a sliding mode, a linkage assembly for adjusting the relative distance between the two lock plates is installed on the cavity, a set of elastic lock pieces for positioning the nuts are evenly distributed on the lock plates, and a protective cylinder is arranged at the position, corresponding to the outer side of the bolt column, of the bolt column. After the nut is installed, the pile casing is installed on the bolt column in a threaded mode, after the pile casing is installed, the bottom end of the pile casing is attached to the nut, then the position of the nut is limited again, then an installation worker drives the transmission rotary pipe to enable the two lock plates to be fully away from each other, and after the two lock plates are fully away from each other, the two lock plates are locked. And the position of the nut is precisely limited for the second time by the elastic locking plate on the locking plate.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding bolts, and more specifically, to a grounding bolt fastener. Background Art

[0002] In the prior art, the patent document with publication number CN202220514279.5 discloses a new type of grounding bolt, including a nut and a stud, a stud is fixedly arranged in the middle of the bottom end of the nut, and a slide groove is opened in the middle of the bottom end of the stud, a straight rod adapted to the slide groove is movably arranged inside the slide groove, the bottom end of the straight rod extends to the bottom of the slide groove, and a grounding terminal is arranged at the bottom end of the straight rod, elastic steel bars are fixedly arranged on both sides of the top end of the straight rod, and the top end of the elastic steel bar is fixedly connected to one side of the top inner wall of the slide groove, and the above-mentioned bolt is provided with the straight rod, so that the straight rod can slide inside the slide groove, thereby changing the length of the overall bolt, so that the grounding terminal can adapt to brackets of different sizes, which is conducive to improving the practicality of the grounding bolt, but when the above-mentioned spiral fastener is used, it is not convenient to perform multiple precise positioning of the fastening nut installed on the spiral, and then it is not convenient to position the nut on the grounding bolt. Based on this, the utility model provides a grounding bolt fastener to solve the technical problems raised in the above-mentioned background technology. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a grounding bolt fastener. When the fastener is in use, the bolt post is threadedly connected to a charged object, and the conductive ring fits with the charged object, thereby performing grounding conduction. Before the nut is installed, the two locking plates are close to each other, and the elastic locking piece is hidden in the locking hole. After the nut is installed, the casing is threadedly installed on the bolt post, and after the casing is installed, the bottom end of the casing fits with the nut, thereby performing a primary definition on the position of the nut. Subsequently, the installer drives the transmission coil to make the two locking plates sufficiently apart. After the two locking plates are sufficiently apart, the elastic locking piece on the locking plate performs a secondary precise definition on the position of the nut, thereby effectively improving the fastening effect of the nut on the conductive ring.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a grounding bolt fastener, comprising a bolt column, an outer wall of the bolt column is provided with a positive thread groove, a nut is threadedly installed on the positive thread groove, a cavity with a top opening is fixedly opened inside the bolt column, two locking holes symmetrically arranged and connected to the cavity are provided on the bolt column, the inner walls of the two locking holes are slidably connected with locking plates, a linkage component for adjusting the relative spacing between the two locking plates is installed on the cavity, a group of elastic locking sheets for positioning the nut are evenly distributed on the locking plates, the bolt column and a protective tube are provided at a position corresponding to the outer side of the bolt column, a reverse thread groove is provided on the upper part of the cavity, a connecting tube is installed on the inner wall of the protective tube, the connecting tube is drivingly connected with the reverse thread groove, and a guide component for driving the linkage component is installed on the protective tube.

[0005] As a preferred technical solution of the utility model, it also includes an elastic gasket and a conductive ring sleeved on the bolt column, the elastic gasket is arranged between the conductive ring and the nut, the conductive ring is arranged below the elastic gasket, the conductive ring is connected to a power board, and the power board is connected to a grounding wire.

[0006] As a preferred technical solution of the present utility model, the elastic gasket, protective tube and connecting tube are all made of insulating materials.

[0007] As a preferred technical solution of the utility model, the linkage assembly includes a transmission screw rotatably connected to the inside of the cavity, the transmission screw is symmetrically provided with a positive thread segment and a negative thread segment, the positive thread segment and the negative thread segment are both transmission-connected with locking blocks, a connecting arm is hinged between each of the locking plates and the two locking blocks, and a driven disk is fixedly installed on the top of the transmission screw.

[0008] As a preferred technical solution of the utility model, the guide assembly includes a transmission coil rotatably connected to the casing, the inner cavity of the transmission coil is slidably connected with a linkage block, a transmission rod is fixedly installed on the bottom surface of the linkage block, and an active disk connected to the driven disk is fixedly installed on the bottom end of the transmission rod, the inner cavity shape of the transmission coil and the cross-section of the linkage block are both regular polygons, and a pressure spring is installed between the transmission rod and the transmission coil.

[0009] As a preferred technical solution of the utility model, the bottom surface of the active disk and the top surface of the driven disk are both fixedly provided with friction patterns, and the top surface of the transmission coil is provided with a transmission groove.

[0010] As a preferred technical solution of the utility model, the elastic locking piece is made of metal, the elastic locking piece is a plate-like structure, the angle between the elastic locking piece and the lock plate is 45°, and an arc-shaped transition section is fixedly provided at the connection between the elastic locking piece and the lock plate.

[0011] The beneficial effects of the utility model are:

[0012] When the fastener is in use, the bolt thread is connected to the charged object, the conductive ring fits with the charged object, and then grounding conduction is performed. Before the nut is installed, the two locking plates are close to each other, and the elastic locking piece is hidden in the locking hole. After the nut is installed, the casing is threadedly installed on the bolt, and after the casing is installed, the bottom end of the casing fits with the nut, and then the position of the nut is limited. Subsequently, the installer drives the transmission coil to make the two locking plates sufficiently apart. After the two locking plates are sufficiently apart, the elastic locking piece on the locking plate accurately defines the position of the nut for a second time, thereby effectively improving the fastening effect of the nut on the conductive ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of a grounding bolt fastener of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the cross-sectional structure of;

[0016] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0017] Figure 4 For this utility model Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0018] Figure 5 It is a structural schematic diagram of the positive thread groove and the bolt column of the utility model.

[0019] In the figure: 1. bolt; 2. positive thread groove; 3. nut; 4. locking hole; 5. locking plate; 6. elastic locking piece; 7. protective tube; 8. reverse thread groove; 9. connecting tube; 10. elastic gasket; 11. conductive ring; 12. power board; 13. transmission screw; 14. locking block; 15. connecting arm; 16. driven disk; 17. transmission coil; 18. linkage block; 19. transmission rod; 20. active disk; 21. pressure spring. DETAILED DESCRIPTION

[0020] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figures 1 to 5 As shown, the utility model provides a grounding bolt fastener, comprising a bolt column 1, an outer wall of the bolt column 1 is provided with a positive thread groove 2, and a nut 3 is threadedly installed on the positive thread groove 2;

[0023] It also includes an elastic washer 10 and a conductive ring 11 sleeved on the bolt 1, the elastic washer 10 is arranged between the conductive ring 11 and the nut 3, the conductive ring 11 is arranged below the elastic washer 10, the conductive ring 11 is connected to a power board 12, and the power board 12 is connected to a ground wire;

[0024] When the fastener is used, the conductive ring 11 is attached to the charged object, and then the charged object is grounded and electrically conductive;

[0025] A cavity with an opening at the top is fixedly provided inside the bolt column 1, and two locking holes 4 are symmetrically arranged and communicated with the cavity. The inner walls of the two locking holes 4 are slidably connected with locking plates 5, and a linkage component for adjusting the relative distance between the two locking plates 5 is installed on the cavity;

[0026] A group of elastic locking pieces 6 for positioning the nuts 3 are evenly distributed on the locking plate 5;

[0027] The elastic locking piece 6 is made of metal and is a plate-like structure. The angle between the elastic locking piece 6 and the locking plate 5 is 45°. An arc-shaped transition section is fixedly provided at the connection between the elastic locking piece 6 and the locking plate 5.

[0028] By setting the layout angle of the elastic locking piece 6 and the setting of the arc-shaped transition section, the elastic locking piece 6 can automatically approach the locking plate 5 when subjected to external pressure, and can automatically move away from the locking plate 5 and accurately limit the nut 3 when the elastic locking piece 6 is in a non-stressed state;

[0029] A casing 7 is provided at the bolt column 1 and at a position corresponding to the outer side of the bolt column 1. A reverse thread groove 8 is opened at the upper part of the cavity. A connecting tube 9 is installed on the inner wall of the casing 7. The connecting tube 9 is transmission-connected to the reverse thread groove 8. A guide assembly for driving the linkage assembly is installed on the casing 7.

[0030] The elastic gasket 10, the protective tube 7 and the connecting tube 9 are all made of insulating materials.

[0031] The linkage assembly includes a transmission screw 13 rotatably connected to the inside of the cavity, the transmission screw 13 is symmetrically provided with a positive thread segment and a negative thread segment, the positive thread segment and the negative thread segment are both transmission-connected with a locking block 14, each locking plate 5 is hinged with a connecting arm 15 between the two locking blocks 14, and a driven disc 16 is fixedly installed at the top of the transmission screw 13;

[0032] By setting the positive thread segment and the negative thread segment, the distance between the two locking plates 5 can be quickly adjusted.

[0033] The guide assembly includes a transmission coil 17 rotatably connected to the casing 7, and a transmission groove is formed on the top surface of the transmission coil 17;

[0034] The inner cavity of the transmission coil 17 is slidably connected with a linkage block 18, a transmission rod 19 is fixedly installed on the bottom surface of the linkage block 18, and a driving disk 20 connected to the driven disk 16 is fixedly installed at the bottom end of the transmission rod 19. The inner cavity shape of the transmission coil 17 and the cross section of the linkage block 18 are both regular polygons;

[0035] By setting the inner cavity shape of the transmission coil 17 and the regular polygonal cross section of the linkage block 18, the transmission coil 17 can be synchronously linked with the transmission rod 19;

[0036] The transmission coil 17 is made of insulating material;

[0037] A pressure spring 21 is installed between the transmission rod 19 and the transmission coil 17 .

[0038] The bottom surface of the active disk 20 and the top surface of the driven disk 16 are both fixedly provided with friction patterns.

[0039] By setting the friction patterns on the driving disk 20 and the driven disk 16 , the driving disk 20 can continuously drive the driven disk 16 .

[0040] The working principle and use process of this utility model:

[0041] When the fastener is in use, the bolt column 1 is threadedly connected to a charged object, and the conductive ring 11 fits with the charged object, thereby performing grounding conduction. Before the nut 3 is installed, the two locking plates 5 are close to each other, and the elastic locking piece 6 is hidden in the locking hole 4. After the nut 3 is installed, the casing 7 is threadedly installed on the bolt column 1, and after the casing 7 is installed, the bottom end of the casing 7 fits with the nut 3, thereby performing a first restriction on the position of the nut 3. Subsequently, the installer drives the transmission coil 17 to move the two locking plates 5 sufficiently apart. After the two locking plates 5 are sufficiently apart, the elastic locking piece 6 on the locking plate 5 performs a second precise restriction on the position of the nut 3, thereby effectively improving the fastening effect of the nut 3 on the conductive ring 11.

[0042] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A grounding bolt fastener, comprising a bolt post (1), characterized in that: The outer wall of the bolt column (1) is provided with a positive thread groove (2), a nut (3) is threadedly installed on the positive thread groove (2), a cavity with a top opening is fixedly provided inside the bolt column (1), two locking holes (4) which are symmetrically arranged and communicated with the cavity are provided on the bolt column (1), the inner walls of the two locking holes (4) are slidably connected with locking plates (5), a linkage component for adjusting the relative spacing between the two locking plates (5) is installed on the cavity, a group of elastic locking sheets (6) for positioning the nut (3) are evenly distributed on the locking plates (5), a protective tube (7) is provided at a position corresponding to the outer side of the bolt column (1), a reverse thread groove (8) is provided on the upper part of the cavity, a connecting tube (9) is installed on the inner wall of the protective tube (7), the connecting tube (9) is transmission-connected to the reverse thread groove (8), and a guide component for driving the linkage component is installed on the protective tube (7).

2. A grounding bolt fastener according to claim 1, characterized in that: It also comprises an elastic gasket (10) and a conductive ring (11) sleeved on the bolt column (1), wherein the elastic gasket (10) is arranged between the conductive ring (11) and the nut (3), and the conductive ring (11) is arranged below the elastic gasket (10). The conductive ring (11) is connected to an electrical connection plate (12), and the electrical connection plate (12) is connected to a grounding wire.

3. A grounding bolt fastener according to claim 2, characterized in that: The elastic gasket (10), the protective tube (7) and the connecting tube (9) are all made of insulating materials.

4. A grounding bolt fastener according to claim 3, characterized in that: The linkage assembly comprises a transmission screw (13) rotatably connected to the inside of the cavity, the transmission screw (13) is symmetrically provided with a positive thread segment and a negative thread segment, the positive thread segment and the negative thread segment are both transmission-connected with a locking block (14), a connecting arm (15) is hinged between each of the locking plates (5) and the two locking blocks (14), and a driven disk (16) is fixedly mounted on the top end of the transmission screw (13).

5. A grounding bolt fastener according to claim 4, characterized in that: The guide assembly comprises a transmission coil (17) rotatably connected to the casing (7); the inner cavity of the transmission coil (17) is slidably connected to a linkage block (18); a transmission rod (19) is fixedly mounted on the bottom surface of the linkage block (18); a driving disk (20) transmission-connected to a driven disk (16) is fixedly mounted on the bottom end of the transmission rod (19); the inner cavity shape of the transmission coil (17) and the cross-section of the linkage block (18) are both regular polygons; and a pressure spring (21) is mounted between the transmission rod (19) and the transmission coil (17).

6. A grounding bolt fastener according to claim 5, characterized in that: The bottom surface of the active disk (20) and the top surface of the driven disk (16) are both fixedly provided with friction patterns, and the top surface of the transmission coil (17) is provided with a transmission groove.

7. A grounding bolt fastener according to claim 6, characterized in that: The elastic locking piece (6) is made of metal and is a plate-shaped structure. The angle between the elastic locking piece (6) and the locking plate (5) is 45°. An arc-shaped transition section is fixedly provided at the connection between the elastic locking piece (6) and the locking plate (5).

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