Transmission line anti-small animal self-locking rotating spike pulley

Abstract

The present invention relates to a self-locking rotating spike wheel for preventing small animals from appearing in a power transmission line, comprising a fixed wheel and a rotating wheel; the fixed wheel comprises a first semicircular sleeve body and a second semicircular sleeve body, one side of the first semicircular sleeve body is hinged to the second semicircular sleeve body, and the other side can be opened and closed; the rotating wheel comprises a third semicircular sleeve body and a fourth semicircular sleeve body which are sleeved on the fixed wheel, the third semicircular sleeve body and the fourth semicircular sleeve body are hinged to one side, and the other side can be opened and closed; the hinged sides of the first semicircular sleeve body and the second semicircular sleeve body are respectively provided with a first switch pressing plate and a second switch pressing plate, and the hinged sides of the third semicircular sleeve body and the fourth semicircular sleeve body are respectively provided with a third switch pressing plate and a fourth switch pressing plate; a plurality of first spike units are arranged on the outer peripheral walls of the first semicircular sleeve body and the second semicircular sleeve body, and a plurality of second spike units are arranged on the outer peripheral walls of the third semicircular sleeve body and the fourth semicircular sleeve body. The present invention has a simple and reliable structure, is easy to install on site, has a wide range of uses, and has a good effect of preventing small animals.

Description

Technical Field

[0001] The invention relates to the field of power transmission line protection, and in particular to a self-locking rotating spike wheel for protecting power transmission lines from small animals. Background Art

[0002] With the improvement of the natural ecological environment in recent years, the number of small animals such as rats, birds, and snakes has gradually increased. The failure of power transmission lines caused by small animals climbing and biting is on the rise, so it is urgent to prevent small animals from harming power transmission lines. At present, there are some devices for preventing small animals from harming power transmission lines, but the effect is not ideal, and the structure is complex, the reliability is poor, and the on-site installation is not convenient. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a transmission line small animal protection self-locking rotating spike pulley which has good small animal protection effect, wide application, simple and reliable structure, and easy on-site installation.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A self-locking rotating thorn wheel for preventing small animals from being seen in a transmission line comprises a fixed wheel and a rotating wheel; the fixed wheel comprises a first semicircular sleeve body and a second semicircular sleeve body arranged in opposite directions, one side of an open end of the first semicircular sleeve body is hinged to one side of an open end of the second semicircular sleeve body through a first pin and a first torsion spring, and the other side of the open end of the first semicircular sleeve body is connected to the other side of the open end of the second semicircular sleeve body in an openable and closable manner; the rotating wheel is sleeved on the fixed wheel and can rotate freely 360 degrees relative to the fixed wheel, and the rotating wheel comprises a third semicircular sleeve body and a fourth semicircular sleeve body arranged in opposite directions, one side of an open end of the third semicircular sleeve body is hinged to one side of an open end of the fourth semicircular sleeve body through a second pin and a second torsion spring, and the other side of the open end of the third semicircular sleeve body is connected to the other side of the open end of the fourth semicircular sleeve body in an openable and closable manner; the hinged sides of the first semicircular sleeve body and the second semicircular sleeve body are respectively provided with a first switch pressing plate and a second switch pressing plate, and the hinged sides of the third semicircular sleeve body and the fourth semicircular sleeve body are respectively provided with The third switch pressing plate and the fourth switch pressing plate; when the third switch pressing plate and the fourth switch pressing plate are in the same axial position as the first switch pressing plate and the second switch pressing plate, pressing the first switch pressing plate and the second switch pressing plate can open the opening and closing sides of the first semicircular sleeve and the second semicircular sleeve and the opening and closing sides of the third semicircular sleeve and the fourth semicircular sleeve; when the third switch pressing plate and the fourth switch pressing plate are in different axial positions as the first switch pressing plate and the second switch pressing plate, pressing the first switch pressing plate and the second switch pressing plate cannot open the opening and closing sides of the first semicircular sleeve and the second semicircular sleeve and the opening and closing sides of the third semicircular sleeve and the fourth semicircular sleeve; a plurality of first spike units are provided on the outer circumferential wall of the first semicircular sleeve and the second semicircular sleeve at positions staggered from the rotating wheel, and a plurality of second spike units are provided on the outer circumferential wall of the third semicircular sleeve and the fourth semicircular sleeve, and when the second spike units are touched by external force, the rotating wheel rotates freely relative to the fixed wheel.

[0006] Furthermore, it also includes a limiting rod arranged in the fixed wheel, one end of the limiting rod is rotatably pivoted to the opening and closing side of the first semicircular sleeve, and the other end is a free end, and a limiting recessed hole is provided on the inner wall of the hinged side of the second semicircular sleeve. The free end of the limiting rod can be inserted into the limiting recessed hole when the opening and closing sides of the first semicircular sleeve and the second semicircular sleeve are in an open state to limit and maintain the open state, and the snap-fitting relationship between the free end of the limiting rod and the limiting recessed hole can be released by the contact of the limiting rod with an external force.

[0007] Furthermore, the first semicircular sleeve is provided with a hollow opening for facilitating the installation of the limiting rod into the fixed wheel and the operation of the limiting rod in the fixed wheel.

[0008] Furthermore, a silicone pad unit is detachably clamped on the inner circumferential walls at both axial ends of the fixed wheel, and each silicone pad unit includes a first arc-shaped silicone pad and a second arc-shaped silicone pad arranged in a ring shape, wherein the first arc-shaped silicone pad is larger than half a circle, and the second arc-shaped silicone pad is smaller than half a circle.

[0009] Furthermore, two plugging holes for externally connecting a mounting support rod are arranged side by side on a side of the first switch pressing plate away from the first semicircular sleeve.

[0010] Furthermore, the first semicircular sleeve body and the second semicircular sleeve body each include a first part and a second part extending along the axial direction, the plurality of first spike units are distributed in a ring shape on the outer peripheral wall of the first part of the first semicircular sleeve body and the second semicircular sleeve body, and the third semicircular sleeve body and the fourth semicircular sleeve body are rotatably sheathed on the outer peripheral wall of the second part of the first semicircular sleeve body and the second semicircular sleeve body.

[0011] Furthermore, a plurality of guide slide strips for slidingly cooperating with the inner circumferential wall surfaces of the third and fourth semicircular sleeves are protruded on the outer circumferential walls of the second parts of the first and second semicircular sleeves at axial intervals, and stop edges for cooperating with the axial side stops of the third and fourth semicircular sleeves are protruded on both axial ends of the second parts of the first and second semicircular sleeves.

[0012] Furthermore, each first spike unit includes a first card plate and at least one first spike arranged on the first card plate, the first card plate presents a trapezoidal structure which is small on the outside and large on the inside, and the outer peripheral walls of the first parts of the first semicircular sleeve and the second semicircular sleeve are correspondingly provided with a first trapezoidal slot for axially clamping the first card plate, the axial outer end of the first trapezoidal slot is provided with a first opening for the first card plate to be clamped in, the axial inner end of the first trapezoidal slot is provided with a first limit stop portion for limiting the first card plate when it is clamped in place, and the axial outer ends of the first parts of the first semicircular sleeve and the second semicircular sleeve are also connected to a first baffle for preventing the first card plate from falling out of the first trapezoidal slot.

[0013] Furthermore, each second spike unit includes a second card plate and at least one second spike arranged on the second card plate, the second card plate presents a trapezoidal structure which is small on the outside and large on the inside, and the outer peripheral walls of the third semicircular sleeve and the fourth semicircular sleeve are correspondingly provided with a second trapezoidal slot for axially clamping the second card plate, the axial outer end of the second trapezoidal slot is provided with a second opening for the second card plate to be clamped in, and the axial inner end of the second trapezoidal slot is provided with a second limit stop portion for limiting the second card plate when it is clamped in place, and the axial outer ends of the third semicircular sleeve and the fourth semicircular sleeve are also connected to a second baffle for preventing the second card plate from slipping out of the second trapezoidal slot.

[0014] Furthermore, the first switch pressure plate and the second switch pressure plate are respectively arranged on the first parts of the first semicircular sleeve and the second semicircular sleeve, the axial inner end of the first part of the first semicircular sleeve is provided with a pivot shaft for the pivot end of the limiting rod to be pivoted, and the limiting recessed hole is arranged at the axial inner end of the first part of the second semicircular sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, the self-locking rotating spike wheel for preventing small animals from entering the power transmission line of the present invention comprises a fixed wheel and a rotating wheel, one end of the fixed wheel is densely provided with a plurality of first spike units along the circumferential direction, the rotating wheel can be freely rotated 360 degrees and is installed at the other end of the fixed wheel, and the rotating wheel is also densely provided with a plurality of second spike units along the circumferential direction, which, on the one hand, lengthens the axial setting length of the spike units, making it difficult for small animals such as squirrels to pass through the self-locking rotating spike wheel by jumping or climbing, and on the other hand, when the second spike units are touched by external force, the rotating wheel can freely rotate 360 ​​degrees relative to the fixed wheel, so when small animals such as squirrels climb or jump onto the rotating wheel, they will fall off as the rotating wheel rotates, so the structure has a very good small animal protection effect and is highly practical.

[0017] Secondly, the transmission line self-locking rotating spur wheel for preventing small animals of the present invention has a simple structure and is very easy to install on site. Specifically, when it is installed on the transmission line, it is only necessary to open the opening and closing side of the fixed wheel (i.e., the opening and closing side of the first semicircular sleeve and the second semicircular sleeve) through the first switch pressing plate and the second switch pressing plate before installation, and then the free end of the limit rod is inserted into the limit recess of the second semicircular sleeve to keep the opening and closing side of the fixed wheel in the open state, and then the self-locking rotating spur wheel is installed on the transmission line through the open side of the fixed wheel through the installation support rod matched with the two plug holes on the first switch pressing plate. At this time, the limit rod is released from the limit recess under the touch of the transmission line, so that the open side of the fixed wheel is automatically closed to realize the self-locking function. The entire installation process does not require the user to climb up to install, which is convenient and safe.

[0018] Furthermore, the structure of the self-locking rotating prong wheel for preventing small animals from entering the power transmission line of the present invention is very reliable. Only when the third switch pressure plate and the fourth switch pressure plate are in the same axial position as the first switch pressure plate and the second switch pressure plate, the opening and closing sides of the fixed wheel (i.e., the opening and closing sides of the first semicircular sleeve and the second semicircular sleeve) can be opened by pressing the first switch pressure plate and the second switch pressure plate. Therefore, the self-locking rotating prong wheel can be effectively prevented from accidentally opening and falling off the fixed wheel due to small animals accidentally touching the first switch pressure plate and the second switch pressure plate when climbing during use, and the reliability is high.

[0019] Finally, the self-locking rotating spike wheel for preventing small animals from appearing in the power transmission line of the present invention has a wide range of uses. It can prevent squirrels from jumping, birds from landing, snakes from climbing, and other small animals, etc. It has the advantages of being applicable to multiple scenarios and being able to easily deal with various problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front perspective schematic diagram of the self-locking rotating spike wheel for protecting power transmission lines from small animals according to the present invention.

[0021] Figure 2 It is a rear perspective schematic diagram of the self-locking rotating spike wheel for protecting power transmission lines from small animals according to the present invention.

[0022] Figure 3 It is a three-dimensional schematic diagram of the open state of the self-locking rotating spike wheel for protecting power transmission lines from small animals according to the present invention.

[0023] Figure 4 This is a diagram of the open state of the self-locking rotating spike wheel for protecting power transmission lines from small animals of the present invention when the first spike unit and the second spike unit are not shown.

[0024] Figure 5 It is an overall exploded schematic diagram of the self-locking rotating spike wheel for protecting power transmission lines from small animals according to the present invention.

[0025] Figure 6 It is a schematic diagram of the structural decomposition of the fixed wheel and the rotating wheel part in the present invention.

[0026] Figure 7 It is a three-dimensional schematic diagram of the fixed wheel in the present invention.

[0027] Figure 8 It is a three-dimensional schematic diagram of the rotating wheel in the present invention. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0029] like Figures 1 to 8As shown, the self-locking rotating spike pulley for preventing small animals from being used in a power transmission line described in this embodiment comprises a fixed wheel 1 and a rotating wheel 2. The fixed wheel 1 is a circular sleeve structure with a certain length, which comprises a first semicircular sleeve 11 and a second semicircular sleeve 12 arranged opposite to each other, one side of the opening end of the first semicircular sleeve 11 is hinged to one side of the opening end of the second semicircular sleeve 12 through a first pin 3 and a first torsion spring 4, and the other side of the opening end of the first semicircular sleeve 11 is connected to the other side of the opening end of the second semicircular sleeve 12 in an openable and closable manner. The rotating wheel 2 is a circular sleeve structure shorter than the fixed wheel 1. It is externally mounted on the fixed wheel 1 and can freely rotate 360 ​​degrees relative to the fixed wheel 1. The rotating wheel 2 includes a third semicircular sleeve 21 and a fourth semicircular sleeve 22 that are arranged opposite to each other. One side of the open end of the third semicircular sleeve 21 is hinged to one side of the open end of the fourth semicircular sleeve 22 through a second pin 5 and a second torsion spring 6, and the other side of the open end of the third semicircular sleeve 21 is connected to the other side of the open end of the fourth semicircular sleeve 22 in an openable and closable manner.

[0030] The hinged sides of the first semicircular sleeve 11 and the second semicircular sleeve 12 are respectively provided with a first switch pressing plate 111 and a second switch pressing plate 121, and the hinged sides of the third semicircular sleeve 21 and the fourth semicircular sleeve 22 are respectively provided with a third switch pressing plate 211 and a fourth switch pressing plate 221. When the third switch pressing plate 211 and the fourth switch pressing plate 221 are in the same axial position as the first switch pressing plate 111 and the second switch pressing plate 121, pressing the first switch pressing plate 111 and the second switch pressing plate 121 can open the opening and closing sides of the first semicircular sleeve 11 and the second semicircular sleeve 12 and the opening and closing sides of the third semicircular sleeve 21 and the fourth semicircular sleeve 22. When the third switch pressing plate 211 and the fourth switch pressing plate 221 are in different axial positions from the first switch pressing plate 111 and the second switch pressing plate 121, pressing the first switch pressing plate 111 and the second switch pressing plate 121 will not open the opening and closing sides of the first semicircular sleeve 11 and the second semicircular sleeve 12 and the opening and closing sides of the third semicircular sleeve 21 and the fourth semicircular sleeve 22. A plurality of first spike units 7 are provided on the outer circumferential wall of the first semicircular sleeve 11 and the second semicircular sleeve 12 at positions staggered from the rotating wheel 2, and a plurality of second spike units 8 are provided on the outer circumferential wall of the third semicircular sleeve 21 and the fourth semicircular sleeve 22. When the second spike units 8 are triggered by external force, the rotating wheel 2 rotates freely relative to the fixed wheel 1.

[0031] The self-locking rotating ratchet also includes a limiting rod 9 arranged in the fixed wheel 1, one end 91 of the limiting rod 9 is rotatably pivoted to the opening and closing side of the first semicircular sleeve 11, and the other end is a free end 92. A limiting recessed hole 122 is provided on the inner wall of the hinged side of the second semicircular sleeve 12. The free end 92 of the limiting rod 9 can be inserted into the limiting recessed hole 122 when the opening and closing sides of the first semicircular sleeve 11 and the second semicircular sleeve 12 are in an open state to limit and maintain the open state, and the snap-fitting relationship between the free end 92 of the limiting rod 9 and the limiting recessed hole 122 can be released according to the contact of the limiting rod 9 by an external force (for example, the contact of the limiting rod 9 by the power transmission line during installation).

[0032] The first semicircular sleeve 11 is provided with a hollow opening 112 for facilitating the installation of the limiting rod 9 into the fixed wheel 1 and the operation of the limiting rod 9 in the fixed wheel 1. The "operation" here includes manually inserting the free end 92 of the limiting rod 9 into the limiting recessed hole 122 and sliding the limiting rod 9 out of the limiting recessed hole 122 when touched by external force.

[0033] A silicone pad unit 10 is detachably clamped on the inner circumferential wall at both ends of the axial direction of the fixed wheel 1, and each silicone pad unit 10 includes a first arc-shaped silicone pad 101 and a second arc-shaped silicone pad 102 arranged in a ring shape, wherein the first arc-shaped silicone pad 101 is larger than half a circle, and the second arc-shaped silicone pad 102 is smaller than half a circle. In this structure, the thickness specification of the silicone pad unit 10 can be adjusted or replaced according to the size of the gap between the fixed wheel 1 and the transmission line, so that the fixed wheel 1 can be wrapped on transmission lines of different sizes for use. At the same time, the large and small design of the first arc-shaped silicone pad 101 and the second arc-shaped silicone pad 102 can prevent the transmission line from sliding into the gap between the hinged side of the first semicircular sleeve 11 and the second semicircular sleeve 12 when the fixed wheel 1 is installed and wrapped on the transmission line, thereby preventing the opening and closing sides of the first semicircular sleeve 11 and the second semicircular sleeve 12 from being able to close normally.

[0034] In a preferred mode of this embodiment, a clamping block is respectively provided on the outer circumferential wall of the first arc-shaped silicone pad 101 and the second arc-shaped silicone pad 102, and a clamping groove for the clamping block to be clamped is correspondingly provided on the inner circumferential wall of the first semicircular sleeve 11 and the second semicircular sleeve 12, so as to realize the detachable clamping of the silicone pad unit 10. In addition, in order to improve the application range of the fixed wheel 1, it is also possible to consider adding at least one group of silicone pads of other specifications with thinner thickness on the inner circumferential wall of the first arc-shaped silicone pad 101 and the second arc-shaped silicone pad 102.

[0035] Two plug holes 1110 for externally connecting the mounting support rod 20 (only the front end connecting part of the mounting support rod is shown in the figure) are arranged side by side on the side of the first switch pressing plate 111 away from the first semicircular sleeve 11. Therefore, during installation, the user can deliver the self-locking rotary ratchet to the transmission line to be installed with the help of the mounting support rod 20 for installation without climbing up, which is convenient and safe.

[0036] The first semicircular sleeve 11 and the second semicircular sleeve 12 both include a first portion 11a, 12a and a second portion 11b, 12b extending in the axial direction, and the plurality of first spike units 7 are distributed in an annular shape on the outer peripheral walls of the first portions 11a, 12a of the first semicircular sleeve 11 and the second semicircular sleeve 12, and the third semicircular sleeve 21 and the fourth semicircular sleeve 22 are rotatably sheathed on the outer peripheral walls of the second portions 11b, 12b of the first semicircular sleeve 11 and the second semicircular sleeve 12.

[0037] A plurality of guide slide strips 11b1, 12b1 for slidingly cooperating with the inner circumferential wall surfaces of the third and fourth semicircular sleeves 21, 22 are axially spaced and projected on the outer circumferential walls of the second parts 11b, 12b of the first and second semicircular sleeves 11, 12. Stop edges 11b2, 12b2 for cooperating with the axial side stops of the third and fourth semicircular sleeves 21, 22 are also projected on the axial ends of the second parts 11b, 12b of the first and second semicircular sleeves 11, 12.

[0038] Each first spike unit 7 includes a first clamping plate 71 and at least one first spike 72 arranged on the first clamping plate 71. The first clamping plate 71 has a trapezoidal structure that is small on the outside and large on the inside. The outer peripheral walls of the first parts 11a and 12a of the first semicircular sleeve 11 and the second semicircular sleeve 12 are correspondingly provided with a first trapezoidal clamping groove 100 for axial clamping of the first clamping plate 71. The axial outer end of the first trapezoidal clamping groove 100 is provided with a first opening 1001 for the first clamping plate 71 to be clamped in. The axial inner end of the first trapezoidal clamping groove 100 is provided with a first limiting stopper 1002 for limiting the first clamping plate 71 when it is clamped in place. The axial outer ends of the first parts 11a and 12a of the first semicircular sleeve 11 and the second semicircular sleeve 12 are also connected to first baffles 11a1 and 12a1 for preventing the first clamping plate 71 from slipping out of the first trapezoidal clamping groove 100.

[0039] Each second spike unit 8 includes a second clamping plate 81 and at least one second spike 82 arranged on the second clamping plate 81. The second clamping plate 81 has a trapezoidal structure that is small on the outside and large on the inside. The outer peripheral walls of the third semicircular sleeve 21 and the fourth semicircular sleeve 22 are correspondingly provided with a second trapezoidal clamping groove 200 for axial clamping of the second clamping plate 81. The axial outer end of the second trapezoidal clamping groove 200 is provided with a second opening 2001 for the second clamping plate 81 to be clamped in. The axial inner end of the second trapezoidal clamping groove 200 is provided with a second limit stop portion 2002 for limiting the second clamping plate 81 when it is clamped in place. The axial outer ends of the third semicircular sleeve 21 and the fourth semicircular sleeve 22 are also connected to second baffles 212 and 222 for preventing the second clamping plate 81 from slipping out of the second trapezoidal clamping groove 200.

[0040] The first switch pressing plate 111 and the second switch pressing plate 121 are respectively arranged on the first parts 11a and 12a of the first semicircular sleeve 11 and the second semicircular sleeve 12. The axial inner end of the first part 11a of the first semicircular sleeve 11 is provided with a pivot shaft 113 for the pivot end of the limiting rod 9 to be pivoted, and the limiting recessed hole 122 is arranged at the axial inner end of the first part 12a of the second semicircular sleeve 12.

[0041] The installation process of the power transmission line self-locking rotating spur wheel for preventing small animals of the present invention is as follows: first, the opening and closing side of the fixed wheel 1 (i.e., the opening and closing side of the first semicircular sleeve 11 and the second semicircular sleeve 12) is opened by pressing the first switch pressing plate 111 and the second switch pressing plate 121, and then the free end 92 of the limiting rod 9 is inserted into the limiting recessed hole 122 of the second semicircular sleeve 12 to keep the opening and closing side of the fixed wheel 1 in the open state, and then the self-locking rotating spur wheel is delivered to the power transmission line to be installed through the installation support rod 20 matched with the two plug holes 1110 on the first switch pressing plate 111 and is put on the power transmission line through the open side of the fixed wheel 1. When the fixed wheel 1 is put on the power transmission line, the limiting rod 9 is released from the limiting recessed hole 122 under the touch of the transmission line, so that the open side of the fixed wheel is automatically closed to achieve self-locking, and then the installation is completed. After the installation is completed, in order to prevent the fixed wheel 1 from accidentally opening and falling off, the rotating wheel 2 can be rotated by a certain angle so that the third switch pressing plate 211 and the fourth switch pressing plate 221 are in different axial positions from the first switch pressing plate 111 and the second switch pressing plate 121. In this way, even if the first switch pressing plate 111 and the second switch pressing plate 121 are accidentally pressed during use, the fixed wheel 1 will not accidentally open and fall off.

[0042] The above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention description are still within the scope of the patent of the present invention.

Claims

1. A self-locking rotating spike wheel for preventing small animals from entering a power transmission line, comprising a fixed wheel and a rotating wheel; characterized in that: The fixed wheel comprises a first semicircular sleeve body and a second semicircular sleeve body arranged in opposite directions, one side of the open end of the first semicircular sleeve body is hinged to one side of the open end of the second semicircular sleeve body through a first pin and a first torsion spring, and the other side of the open end of the first semicircular sleeve body is openably connected to the other side of the open end of the second semicircular sleeve body; the rotating wheel is outermostly disposed on the fixed wheel and can rotate freely 360 degrees relative to the fixed wheel, and the rotating wheel comprises a third semicircular sleeve body and a fourth semicircular sleeve body arranged in opposite directions, one side of the open end of the third semicircular sleeve body is hinged to one side of the open end of the fourth semicircular sleeve body through a second pin and a second torsion spring, and the other side of the open end of the third semicircular sleeve body is openably connected to the other side of the open end of the fourth semicircular sleeve body; the hinged sides of the first semicircular sleeve body and the second semicircular sleeve body are respectively provided with a first switch pressure plate and a second switch pressure plate, and the hinged sides of the third semicircular sleeve body and the fourth semicircular sleeve body are respectively provided with a third switch pressure plate and a fourth switch pressure plate ; When the third switch pressing plate and the fourth switch pressing plate are in the same axial position as the first switch pressing plate and the second switch pressing plate, pressing the first switch pressing plate and the second switch pressing plate can open the opening and closing sides of the first semicircular sleeve body and the second semicircular sleeve body and the opening and closing sides of the third semicircular sleeve body and the fourth semicircular sleeve body; when the third switch pressing plate and the fourth switch pressing plate are in different axial positions as the first switch pressing plate and the second switch pressing plate, pressing the first switch pressing plate and the second switch pressing plate cannot open the opening and closing sides of the first semicircular sleeve body and the second semicircular sleeve body and the opening and closing sides of the third semicircular sleeve body and the fourth semicircular sleeve body; a plurality of first spike units are provided on the outer circumferential wall of the first semicircular sleeve body and the second semicircular sleeve body at positions staggered from the rotating wheel, and a plurality of second spike units are provided on the outer circumferential wall of the third semicircular sleeve body and the fourth semicircular sleeve body, and when the second spike units are touched by external force, the rotating wheel rotates freely relative to the fixed wheel.

2. The self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 1, characterized in that: It also includes a limiting rod arranged in the fixed wheel, one end of the limiting rod is rotatably pivoted to the opening and closing side of the first semicircular sleeve, and the other end is a free end. A limiting recessed hole is provided on the inner wall of the hinged side of the second semicircular sleeve. The free end of the limiting rod can be inserted into the limiting recessed hole when the opening and closing sides of the first semicircular sleeve and the second semicircular sleeve are in an open state to limit and maintain the open state, and the snap-fitting relationship between the free end of the limiting rod and the limiting recessed hole can be released by the contact of the limiting rod with an external force.

3. A self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 2, characterized in that: The first semicircular sleeve body is provided with a hollow opening for facilitating the limiting rod to be installed into the fixing wheel and for facilitating the limiting rod to operate in the fixing wheel.

4. A self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 1, 2 or 3, characterized in that: A silicone pad unit is detachably clamped on the inner circumferential walls at both axial ends of the fixed wheel, and each silicone pad unit includes a first arc-shaped silicone pad and a second arc-shaped silicone pad arranged in a ring shape, wherein the first arc-shaped silicone pad is larger than half a circle, and the second arc-shaped silicone pad is smaller than half a circle.

5. A self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 1, 2 or 3, characterized in that: Two plugging holes for externally connecting mounting struts are arranged side by side on one side of the first switch pressing plate away from the first semicircular sleeve.

6. A self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 2 or 3, characterized in that: The first semicircular sleeve body and the second semicircular sleeve body both include a first part and a second part extending along the axial direction, the plurality of first spike units are distributed in a ring shape on the outer peripheral wall of the first part of the first semicircular sleeve body and the second semicircular sleeve body, and the third semicircular sleeve body and the fourth semicircular sleeve body are rotatably sheathed on the outer peripheral wall of the second part of the first semicircular sleeve body and the second semicircular sleeve body.

7. The self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 6, characterized in that: A plurality of guide slides are axially spaced apart and projected on the outer circumferential walls of the second parts of the first and second semicircular sleeves for slidingly cooperating with the inner circumferential wall surfaces of the third and fourth semicircular sleeves, and stop edges are axially protruded at both ends of the second parts of the first and second semicircular sleeves for cooperating with the axial side stops of the third and fourth semicircular sleeves.

8. The self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 6, characterized in that: Each first spike unit includes a first card plate and at least one first spike arranged on the first card plate, the first card plate is a trapezoidal structure with a small outside and a large inside, and the outer peripheral walls of the first parts of the first semicircular sleeve and the second semicircular sleeve are correspondingly provided with a first trapezoidal slot for axially clamping the first card plate, the axial outer end of the first trapezoidal slot is provided with a first opening for the first card plate to be clamped in, the axial inner end of the first trapezoidal slot is provided with a first limit stop portion for limiting the first card plate when it is clamped in place, and the axial outer ends of the first parts of the first semicircular sleeve and the second semicircular sleeve are also connected to a first baffle for preventing the first card plate from falling out of the first trapezoidal slot.

9. The self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 6, characterized in that: Each second spike unit includes a second card plate and at least one second spike arranged on the second card plate, the second card plate is a trapezoidal structure that is small on the outside and large on the inside, and the outer peripheral walls of the third semicircular sleeve and the fourth semicircular sleeve are correspondingly provided with a second trapezoidal slot for axially clamping the second card plate, the axial outer end of the second trapezoidal slot is provided with a second opening for the second card plate to be clamped in, and the axial inner end of the second trapezoidal slot is provided with a second limit stop portion for limiting the second card plate when it is clamped in place, and the axial outer ends of the third semicircular sleeve and the fourth semicircular sleeve are also connected to a second baffle for preventing the second card plate from slipping out of the second trapezoidal slot.

10. The self-locking rotating spike wheel for preventing small animals from entering a power transmission line according to claim 6, characterized in that: The first switch pressure plate and the second switch pressure plate are respectively arranged on the first parts of the first semicircular sleeve and the second semicircular sleeve, and the axial inner end of the first part of the first semicircular sleeve is provided with a pivot shaft for the pivot end of the limiting rod to be pivoted, and the limiting recessed hole is arranged at the axial inner end of the first part of the second semicircular sleeve.

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