Hook for preventing lead of power transmission line from falling off

Abstract

The utility model discloses a hook used for preventing a power transmission line lead from falling off, and relates to the technical field of hooks, the hook comprises a hook main body and a blocking tongue, the opening side of the hook main body is provided with an inner cavity, the inner cavity is internally connected with a pushing spring, and the pushing spring is fixed with the back surface of the blocking tongue. And the upper end of the blocking tongue is rotationally connected with the hook main body. According to the hook for preventing the power transmission line wire from falling off, the opening of the limiting ring frame and the opening of the hook body are opened at the same time by pressing the blocking tongue to rotate or rotating the shifting rod, and when pressing on the blocking tongue is released, the blocking tongue and the limiting ring frame can be driven to reset at the same time through resetting of the extruding and pushing spring and resetting of the traction spring; through combined use of the blocking tongue and the limiting mechanism, it can be guaranteed that the hook has the dual-protection effect, and then when the blocking tongue and the squeezing and pushing spring are damaged after long-time use, the electric transmission line wire can be prevented from falling off through arrangement of the limiting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of hooks, in particular to a hook used to prevent a wire of a power transmission line from falling off. Background Art

[0002] The power hook is an accessory used for laying cables. It is suitable for mines, ground and underground passages and other places, especially for laying cables underground in coal mines.

[0003] According to the transmission line wire damage protection hook with publication number CN216971735U, the utility model has a reasonable and compact structure and is easy to use. By setting a wire guard plate, the contact area between the hook and the wire is increased to avoid damage to the wire when lifting the wire; by setting a rubber protrusion, the friction between the wire and the wire guard plate is increased; by setting an anti-slip tongue piece, the wire is prevented from slipping out of the opening of the hook body, and has the characteristics of stability, reliability and high efficiency;

[0004] This technical solution blocks the opening of the hook body by an anti-drop tongue. After long-term use, the anti-drop tongue is easily damaged. After damage, the wire of the power transmission line is easily dropped from the opening side of the hook body. Therefore, the above problem needs to be improved. Utility Model Content

[0005] The utility model aims to provide a hook for preventing a power transmission line conductor from falling off, so as to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a hook for preventing a power transmission line conductor from falling off, comprising a hook body and a stop tongue,

[0007] An inner cavity is provided on the open side of the hook body, and a pushing spring is connected in the inner cavity. The pushing spring is fixed to the back of the tongue, the upper end of the tongue is rotatably connected to the hook body, and the lower end of the tongue abuts against the inner wall of the open side of the hook body.

[0008] Preferably, a guide groove is provided on a side of the blocking tongue away from the pushing spring, and a limiting mechanism is provided on the outer side of the hook body, wherein the limiting mechanism includes a slide rod sliding with the guide groove.

[0009] Preferably, both ends of the slide rod are fixed to a limiting ring frame, the limiting ring frame is a "C"-shaped arc structure, and a lever for manual rotation is welded on the outer side of the limiting ring frame.

[0010] Preferably, the limiting ring frame is distributed in parallel with the hook body, and a circular T-shaped track groove is provided on one side of the limiting ring frame close to the hook body, and guide rails matching and connecting with the T-shaped track groove are welded on both sides of the hook body.

[0011] Preferably, the two limiting ring frames are fixed by welding at one side away from the opening through a connecting frame, and a traction spring is welded between the connecting frame and the hook body.

[0012] Preferably, a limiting groove is provided on a surface of one side of the hook body away from the blocking tongue, the limiting groove is located in the middle of the back side of the hook body, and the traction spring is located in the middle of the connecting frame.

[0013] Preferably, a through hole is provided on a side of the top of the hook body away from the blocking tongue, and an arc-shaped sliding groove is provided on the inner wall of the bottom end of the through hole.

[0014] Preferably, a docking seat is welded to the upper end of the hook body, the upper end of the docking seat is a cylindrical structure, and the outer wall surface of the upper end of the docking seat is provided with threads, a reserved cavity is opened in the middle of the docking seat, and the reserved cavity is connected to the through hole.

[0015] Preferably, a suspension rod is inserted into the interior of the docking seat, and the suspension rod is an inverted T-shaped structure. The lower horizontal end of the suspension rod is connected to the slide groove, and a nut is threadedly sleeved on the upper end of the docking seat, and the nut is inserted into the suspension rod.

[0016] Preferably, a bayonet is provided on one side of the suspension rod, and a limit bolt is threadedly connected to the surface of the hook body close to the through hole, and the limit bolt abuts against the bayonet on the surface of the suspension rod.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The hook for preventing the transmission line conductor from falling off ensures that the opening of the limit ring frame and the opening of the hook body are opened at the same time by pressing the stop tongue and rotating or rotating the lever. When the pressure on the stop tongue is released, the stop tongue and the limit ring frame can be driven to reset at the same time by resetting the squeezing spring and the pulling spring. The combination of the stop tongue and the limit mechanism can ensure that the hook has a double protection effect. When the stop tongue and the squeezing spring are damaged after long-term use, the setting of the limit mechanism can also prevent the transmission line conductor from falling off.

[0019] 2. The hook for preventing the transmission line conductor from falling off is arranged by placing the horizontal end of the suspension rod vertically and extending it through the reserved cavity of the docking seat, and then flipping the suspension rod so that the suspension rod is docked in the through hole, and then slidingly connecting the horizontal side of the T-shaped end at the bottom of the suspension rod with the arc-shaped slide groove, and then flipping the upper side of the suspension rod and inserting it into the U-shaped opening at the top of the docking seat, so that the suspension rod is placed vertically, thereby facilitating the quick assembly and connection of the hook body and the suspension rod;

[0020] 3. The hook used to prevent the power transmission line conductor from falling off is connected to the upper end thread of the docking seat by rotating the nut. The nut can be used to limit the boom in a vertical placement state, and the limit bolt can be used to limit the bayonet on the surface of the boom to ensure that the boom is stably reinforced when the hook body is pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after the perspective is converted;

[0023] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional explosion structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the three-dimensional explosion structure after the perspective conversion of the utility model.

[0026] In the figure: 1. hook body; 2. pushing spring; 3. tongue; 301. guide groove; 4. limiting mechanism; 401. slide rod; 402. limiting ring frame; 403. lever; 404. connecting frame; 405. traction spring; 5. guide rail; 6. limiting groove; 7. through hole; 8. slide groove; 9. docking seat; 10. limiting bolt; 11. suspension rod; 12. bayonet; 13. nut. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: a hook for preventing the transmission line conductor from falling off, comprising a hook body 1 and a blocking tongue 3, an inner cavity is opened on the opening side of the hook body 1, and a pushing spring 2 is connected in the inner cavity, the pushing spring 2 is fixed to the back of the blocking tongue 3, the upper end of the blocking tongue 3 is rotatably connected to the hook body 1, and the lower end of the blocking tongue 3 abuts against the inner wall of the opening side of the hook body 1, and the blocking tongue 3 is pushed by the pushing spring 2 to ensure that the blocking tongue 3 blocks the opening side of the hook body 1.

[0029] A guide groove 301 is provided on the side of the stop tongue 3 away from the squeezing spring 2, and a limiting mechanism 4 is provided on the outer side of the hook body 1, and the limiting mechanism 4 includes a slide bar 401 sliding with the guide groove 301; both ends of the slide bar 401 are fixed to a limiting ring frame 402, and the limiting ring frame 402 is a "C"-shaped arc structure, and a lever 403 for manual rotation is welded on the outer side of the limiting ring frame 402;

[0030] The limiting ring frame 402 is distributed parallel to the hook body 1. A circular T-shaped track groove is provided on the side of the limiting ring frame 402 close to the hook body 1. Guide rails 5 matching and connected to the T-shaped track groove are welded on both sides of the hook body 1. The two limiting ring frames 402 are welded and fixed on the side away from the opening through a connecting frame 404. A traction spring 405 is welded between the connecting frame 404 and the hook body 1.

[0031] In a specific implementation, the tongue 3 is pressed to rotate, so that the squeezing spring 2 is compressed and deformed, so that the tongue 3 pushes the slide bar 401 through the guide groove 301, so that the slide bar 401 slides in the guide groove 301, so that the slide bar 401 pushes the limiting ring frame 402 to rotate around the arc-shaped guide rail 5, and when the limiting ring frame 402 rotates, the traction spring 405 is driven to lengthen;

[0032] When the two parallel limiting ring frames 402 drive the opening to flip upward, the opening of the limiting ring frame 402 and the opening of the hook body 1 will be opened at the same time, so that the wire of the power transmission line can be placed in the hook body 1. Then, when the pressure on the blocking tongue 3 is released, the resetting of the pushing spring 2 and the pulling spring 405 can simultaneously drive the blocking tongue 3 and the limiting ring frame 402 to rotate in the opposite direction, thereby completing the shielding of the opening side of the hook body 1. The combined use of the blocking tongue 3 and the limiting mechanism 4 can ensure that the hook has a double protection effect. Furthermore, when the blocking tongue 3 and the pushing spring 2 are damaged after long-term use, the setting of the limiting mechanism 4 can also prevent the power transmission line wire from falling off.

[0033] When the lever 403 is directly rotated, the limiting ring frame 402 can be driven to pull the slide bar 401 to push the blocking tongue 3, and the opening of the hook body 1 can also be opened and the opening of the limiting ring frame 402 can be exposed.

[0034] A limiting groove 6 is provided on the surface of one side of the hook body 1 away from the tongue 3, and the limiting groove 6 is located in the middle of the back side of the hook body 1. The traction spring 405 is located in the middle of the connecting frame 404. When the limiting ring frame 402 rotates and drives the traction spring 405 to lengthen, the connecting frame 404 will change its orientation due to the rotation, and at the same time, the elongated traction spring 405 will slide along the limiting groove 6, ensuring that the traction spring 405 will not produce excessive wear with the back side of the hook body 1 when stretched.

[0035] A through hole 7 is provided on the top of the hook body 1 on the side away from the tongue 3, and an arc-shaped slide groove 8 is provided on the inner wall of the bottom end of the through hole 7. A docking seat 9 is welded to the upper end of the hook body 1. The upper end of the docking seat 9 is a cylindrical structure, and the outer wall surface of the upper end of the docking seat 9 is provided with a thread. A U-shaped opening is provided at the upper end of the docking seat 9, and a reserved cavity is provided in the middle of the docking seat 9, and the reserved cavity is connected to the through hole 7;

[0036] A suspension rod 11 is inserted into the docking seat 9, and the suspension rod 11 is an inverted T-shaped structure. The lower horizontal end of the suspension rod 11 is connected to the slide groove 8, and a nut 13 is threadedly sleeved on the upper end of the docking seat 9, and the nut 13 is inserted into the suspension rod 11.

[0037] During the specific implementation, the horizontal end of the suspension rod 11 is placed vertically and extended through the reserved cavity of the docking seat 9, and then the suspension rod 11 is flipped so that the suspension rod 11 is docked into the through hole 7. Subsequently, the horizontal side of the T-shaped end at the bottom of the suspension rod 11 is slidably connected with the arc-shaped slide groove 8, and then the upper side of the suspension rod 11 is flipped and inserted into the U-shaped opening at the top of the docking seat 9, so that the suspension rod 11 is placed vertically, thereby facilitating the quick assembly and connection of the hook body 1 and the suspension rod 11, ensuring that the hook body 1 and the suspension rod 11 have the effect of separate assembly and use.

[0038] A bayonet 12 is provided on one side of the suspension rod 11 , and a limit bolt 10 is threadedly connected to the surface of the hook body 1 close to the through hole 7 , and the limit bolt 10 abuts against the bayonet 12 on the surface of the suspension rod 11 .

[0039] During specific implementation, by rotating the nut 13 on the outside of the suspension rod 11, the nut 13 is threadedly connected to the upper end of the docking seat 9, and the suspension rod 11 can be restricted in a vertical placement state by the nut 13; then, the suspension rod 11 is fastened to the hook body 1 by rotating the limit bolt 10, and the limit bolt 10 can be used to limit the bayonet 12 on the surface of the suspension rod 11 to ensure that the suspension rod 11 is stably reinforced when the hook body 1 is pulled.

[0040] To sum up, the opening of the limiting ring frame 402 and the opening of the hook body 1 are opened at the same time, so that the wire of the power transmission line can be placed in the hook body 1, and then the blocking tongue 3 and the limiting ring frame 402 are reset to complete the shielding of the opening side of the hook body 1 to ensure that the wire of the power transmission line is restricted. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hook for preventing a power transmission line conductor from falling off, comprising a hook body (1) and a retaining tongue (3), characterized in that: The opening side of the hook body (1) is provided with an inner cavity, and a pushing spring (2) is connected in the inner cavity; the pushing spring (2) is fixed to the back side of the blocking tongue (3); the upper end of the blocking tongue (3) is rotatably connected to the hook body (1), and the lower end of the blocking tongue (3) is in contact with the inner wall of the opening side of the hook body (1).

2. The hook for preventing the power transmission line conductor from falling off according to claim 1 is characterized in that: A guide groove (301) is provided on the side of the blocking tongue (3) away from the squeezing spring (2), and a limiting mechanism (4) is provided on the outer side of the hook body (1), wherein the limiting mechanism (4) comprises a sliding rod (401) that slides with the guide groove (301).

3. The hook for preventing the power transmission line conductor from falling off according to claim 2, characterized in that: The two ends of the slide bar (401) are fixed to a limiting ring frame (402), the limiting ring frame (402) is in a "C"-shaped arc structure, and a lever (403) for manual rotation is welded on the outer side of the limiting ring frame (402).

4. The hook for preventing the power transmission line conductor from falling off according to claim 3 is characterized in that: The limiting ring frame (402) is arranged in parallel with the hook body (1); a circular T-shaped track groove is provided on one side of the limiting ring frame (402) close to the hook body (1); guide rails (5) matching and connected to the T-shaped track groove are welded on both sides of the hook body (1).

5. The hook for preventing the power transmission line conductor from falling off according to claim 4, characterized in that: The two limiting ring frames (402) are fixed by welding at the side away from the opening via a connecting frame (404), and a traction spring (405) is welded between the connecting frame (404) and the hook body (1).

6. The hook for preventing the power transmission line conductor from falling off according to claim 5, characterized in that: A limiting groove (6) is provided on a side surface of the hook body (1) away from the blocking tongue (3), and the limiting groove (6) is located in the middle of the back side of the hook body (1), and the traction spring (405) is located in the middle of the connecting frame (404).

7. The hook for preventing the power transmission line conductor from falling off according to claim 1, characterized in that: A through hole (7) is provided on the top of the hook body (1) at a side away from the blocking tongue (3), and an arc-shaped sliding groove (8) is provided on the inner wall of the bottom end of the through hole (7).

8. The hook for preventing the power transmission line conductor from falling off according to claim 7, characterized in that: A docking seat (9) is welded to the upper end of the hook body (1); the upper end of the docking seat (9) is a cylindrical structure, and the outer wall surface of the upper end of the docking seat (9) is provided with threads; a reserved cavity is opened in the middle of the docking seat (9), and the reserved cavity is connected to the through hole (7).

9. The hook for preventing the power transmission line conductor from falling off according to claim 8, characterized in that: A suspension rod (11) is inserted into the interior of the docking seat (9), and the suspension rod (11) is an inverted T-shaped structure. The lower horizontal end of the suspension rod (11) is connected to the slide groove (8), and a nut (13) is threadedly sleeved on the upper end of the docking seat (9), and the nut (13) is inserted into the suspension rod (11).

10. The hook for preventing the power transmission line conductor from falling off according to claim 9, characterized in that: A bayonet (12) is provided on one side of the suspension rod (11); a surface of the hook body (1) close to the through hole (7) is threadedly connected to a limit bolt (10); the limit bolt (10) abuts against the bayonet (12) on the surface of the suspension rod (11).

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