Anti-loose hoop and detection accessory

Abstract

The utility model discloses an anti-loose hoop and a detection accessory, and the anti-loose hoop comprises two hoop rings which are detachably connected, and the inner wall surface of each hoop ring is provided with first anti-loose teeth; the anti-loosening rods are arranged on the hoop rings in a penetrating mode, one ends of the anti-loosening rods are embedded ends penetrating out of the inner wall faces of the hoop rings, and at least one anti-loosening rod is arranged on each hoop ring; and the detection piece is arranged on the hoop ring and is used for transmitting the position information of the anti-loose hoop. The detection accessory comprises the anti-loose hoop. The temperature influence is eliminated through the anti-loosening hoop, it is ensured that the anti-loosening hoop is stabilized at the designed position for a long time, and the problem that the hoop is loosened due to the temperature is solved; the position of the disconnecting link is accurately reflected, and the purpose of accurately detecting the state of the disconnecting link is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoop, in particular to an anti-loosening hoop and a detection accessory. Background Art

[0002] At present, in the double-confirmation status detection accessories of a substation, most use hoops as the way to hold a transmission rod tightly. Affected by temperature, the hoop or the transmission rod changes in size, the hoop loosens and slides relative to the transmission rod, and the measurement result of the detection device for detecting the position of the transmission rod through the hoop is incorrect, affecting subsequent operations. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that under the influence of the outside world, the existing hoop is easy to loosen and slide relative to the transmission rod. The purpose is to provide an anti-loosening hoop and a detection accessory to solve the above problems.

[0004] The utility model is realized by the following technical solutions:

[0005] In the first aspect, the utility model provides an anti-loosening hoop, including:

[0006] Hoop rings, there are two hoop rings which are detachably connected, and the inner wall surface of each hoop ring is provided with a first anti-loosening tooth;

[0007] Anti-loosening rods, which are arranged on the hoop rings, and one end of each anti-loosening rod is constructed as an embedding end that penetrates through the inner wall surface of the hoop ring, and at least one anti-loosening rod is arranged on each hoop ring;

[0008] Detection parts, which are arranged on the hoop rings and are used for transmitting the position information of the anti-loosening hoop.

[0009] In a possible design, connection holes are respectively arranged at both ends of the hoop ring, and a first connecting rod is detachably arranged on the connection holes, and the first connecting rod is used for connecting the two hoop rings;

[0010] The hoop ring has opposite outer wall surface and inner wall surface. An additional platform extending outward is arranged on the outer wall surface. The detection part is arranged on the additional platform. The first anti-loosening tooth is arranged on the inner wall surface. And the additional platform has opposite upper surface and lower surface, one of which is flush with the side surface of the hoop ring, and the other forms a stepped structure with the hoop ring.

[0011] In a possible design, the detection part is connected to the additional platform through a second connecting rod. Correspondingly, a number of adjustment holes adapted to the second connecting rod are arranged on the additional platform. An adjustment groove for the second connecting rod to pass through is arranged on the detection part, and the adjustment groove communicates with at least one adjustment hole.

[0012] In a possible design, a number of adjustment holes are arranged at equal intervals along the circumferential direction of the hoop ring on the same circumference.

[0013] In a possible design, the detecting member is configured as a magnetic steel seat; or, the detecting member is configured as a base provided with a magnetic steel block.

[0014] In a possible design, a detachable diameter-changing ring is provided on the hoop. The diameter-changing ring has a first arc surface for connecting the hoop and a second arc surface for clamping the transmission rod. At least on the second arc surface of the first arc surface and the second arc surface, there are second anti-loosening teeth. Correspondingly, an installation groove adapted to the diameter-changing ring is provided on the inner wall surface of the hoop.

[0015] In a possible design, the anti-loosening rod is radially inserted through the hoop. Correspondingly, a first hole body adapted thereto is provided on the hoop, and a second hole body adapted thereto is provided on the diameter-changing ring.

[0016] In a possible design, the anti-loosening rod is selected as a set screw, and there are 2, 3 or 4 set screws.

[0017] In a second aspect, the present utility model provides a detection accessory, including a transmission rod, a driver, a knife switch, and a detection device;

[0018] The above-mentioned anti-loosening hoop is fixed on the transmission rod, and the inserted end of the anti-loosening rod is inserted into the transmission rod;

[0019] The driver is connected to the transmission rod and is used to drive the transmission rod to rotate. The knife switch is connected to the transmission rod and rotates with the transmission rod. The detection device detects the rotation of the transmission rod through the detecting member and identifies the opening and closing state of the knife switch.

[0020] In a possible design, a closing and opening identification plate is provided on the anti-loosening hoop.

[0021] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0022] The temperature influence is eliminated through the anti-loosening hoop, ensuring that the anti-loosening hoop is stably in the designed position for a long time, and solving the problem of hoop loosening caused by temperature; thereby accurately reflecting the position of the knife switch and achieving the purpose of accurately detecting the state of the knife switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings:

[0024] Figure 1 It is a schematic structural diagram of an anti-loosening hoop.

[0025] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of

[0026] Figure 3 a schematic structure diagram of the hoop

[0027] Figure 4 a schematic structure diagram of the variable diameter ring

[0028] Marks in the attached drawings and corresponding names of components:

[0029] 1. Hoop; 2. Locking rod; 3. Detection piece; 4. First connecting rod; 5. Additional platform; 6. Second connecting rod; 7. Variable diameter ring; 801. Connecting hole; 802. Adjustment hole; 803. Adjustment groove. Specific embodiments

[0030] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the embodiments and the attached drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and are not intended to limit the present utility model.

[0031] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be apparent to those of ordinary skill in the art that: It is not necessary to employ these specific details to practice the present utility model. In other embodiments, well-known structures, circuits, materials or methods have not been specifically described in order to avoid obscuring the present utility model.

[0032] Throughout the specification, references to "one embodiment", "embodiment", "an example" or "example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present utility model. Thus, the phrases "one embodiment", "embodiment", "an example" or "example" appearing throughout the specification are not necessarily all referring to the same embodiment or example. Additionally, the particular features, structures, or characteristics may be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art should understand that the diagrams provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0033] In the description of the present utility model, the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present utility model.

[0034] Embodiment:

[0035] Due to the influence of the external temperature, the clamp and the transmission rod will exhibit thermal expansion and contraction, which will in turn cause the clamp to become loose. When the degree of looseness is small, the clamp is skewed relative to the transmission rod. When the degree of looseness is large, the clamp slides relative to the transmission rod. Both of these phenomena will cause the measurement results of the detection device to be incorrect, and it will be difficult to monitor the opening and closing state of the knife switch.

[0036] Therefore, in this embodiment, a loosening-preventing clamp is provided here to eliminate the influence of temperature, ensure that the loosening-preventing clamp is stably in the designed position for a long time, and solve the problem of the clamp loosening caused by temperature. Specifically:

[0037] As Figures 1 - 4 shown, a loosening-preventing clamp includes:

[0038] Clamp rings 1, there are two and they are detachably connected. First anti-loosening teeth are provided on the inner wall surface of each clamp ring 1;

[0039] Anti-loosening rods 2 are inserted through the clamp rings 1, and one end of each is configured as an insertion end that penetrates the inner wall surface of the clamp ring 1, and at least one anti-loosening rod 2 is provided on each clamp ring 1;

[0040] Detection members 3 are arranged on the clamp rings 1 and are used to transmit the position information of the loosening-preventing clamp.

[0041] Among them, the clamp rings 1 increase the friction coefficient between the clamp rings 1 and the transmission rod through the first anti-loosening teeth. When the clamp rings 1 become loose, especially when the looseness is small, the clamp rings 1 increase the friction resistance they receive through the first anti-loosening teeth, reducing the influence of the looseness. The anti-loosening rods 2 are inserted through the clamp rings 1, and the insertion ends are inserted into the transmission rod, so as to provide sufficient tightening force to fix the position of the clamp rings 1; at the same time, when the looseness is large, the loosening prevention effect of the first anti-loosening teeth decreases, and the clamp rings 1 show a sliding phenomenon. At this time, the anti-loosening rods 2 form a block, effectively preventing the sliding of the clamp rings 1, thereby locking the clamp rings 1 in the designed position. And through the cooperation of multiple anti-loosening rods 2, while sharing the gravity, the clamp rings 1 will not be skewed.

[0042] For the detection member 3, the detection member 3 is used to cooperate with the detection device to enable the detection device to detect the position of the anti-loosening clamp. At the same time, when the anti-loosening clamp is installed, at least one of the hoop 1, the anti-loosening rod 2, and the detection member 3 is adjusted to improve the accuracy of detection by the detection device. The specific adjustment parameters include, but are not limited to, the height of the hoop 1, the orientation of the hoop 1, the number of anti-loosening rods 2, the orientation of the anti-loosening rods 2, the layout form of the plurality of anti-loosening rods 2, the type and position of the detection member 3, and the type and position of the detection device.

[0043] Based on this, for the anti-loosening clamp, for a small looseness, the first anti-loosening teeth and the anti-loosening rod 2 cooperate with each other to eliminate its influence; for a large looseness, several anti-loosening rods 2 cooperate with each other and form a physical barrier to prevent the anti-loosening clamp from sliding down. At the same time, the skew phenomenon of the anti-loosening clamp caused by looseness is also alleviated, effectively ensuring the accuracy of detection by the detection device.

[0044] During operation, the two hoops 1 are connected and tightened on the transmission rod, and the anti-loosening rod 2 passes through the hoop 1 and is inserted into the transmission rod. At this time, the anti-loosening clamp is initially fixed on the transmission rod. The staff further adjusts the anti-loosening clamp until the position of the anti-loosening clamp meets the design requirements; or, it is also possible to judge whether the anti-loosening clamp is adjusted in place according to the accuracy of the detection result of the detection device.

[0045] In a possible implementation manner, connection holes 801 are respectively provided at both ends of the hoop 1, and a first connecting rod 4 is detachably provided on the connection holes 801. The first connecting rod 4 is used to connect the two hoops 1. Based on the above design scheme, the hoop 1 can be constructed into any suitable shape, the first connecting rod 4 can be selected from any suitable type of screw or bolt, and correspondingly, the connection holes 801 are constructed as screw holes. And as Figure 1 shown, when the first connecting rod 4 connects the two hoops 1, a matching nut is provided on the first connecting rod 4.

[0046] In a possible implementation manner, the hoop 1 has opposite outer wall surfaces and inner wall surfaces. An additional platform 5 extending outward is provided on the outer wall surface, the detection member 3 is arranged on the additional platform 5, and the first anti-loosening teeth are provided on the inner wall surface. Based on the above design scheme, the volume of the hoop 1 is enlarged through the arrangement of the additional platform 5, which is convenient for the installation of the detection member 3. The first anti-loosening teeth can be constructed into any suitable structure, and the present invention does not make any limitation thereto.

[0047] Optionally, as Figure 3As shown, the additional platform 5 has opposite upper and lower surfaces, one of which is flush with the side surface of the hoop 1, and the other forms a stepped structure with the hoop 1. Based on this, the stepped structure is used for the connection of the detection piece 3. When the detection piece 3 abuts against the stepped surface, the approximate positioning of the detection piece 3 can be realized, making the installation of the detection piece 3 more convenient; when adjusting the position of the detection piece 3, the detection piece 3 can be moved along the stepped structure. Alternatively, if the detection piece 3 is relatively large, the detection piece 3 can also be installed on the flush surface, which is flexible to use and has good practicability.

[0048] In a possible implementation manner, the detection piece 3 is connected to the additional platform 5 through the second connecting rod 6. Correspondingly, a plurality of positioning holes 802 adapted to the second connecting rod 6 are provided on the additional platform 5, and a positioning slot 803 for the second connecting rod 6 to pass through is provided on the detection piece 3, and the positioning slot 803 communicates with at least one positioning hole 802.

[0049] Based on the above design, the position of the detection piece 3 can be conveniently adjusted through the design of multiple positioning holes 802, and the position of the detection piece 3 is more flexible, so as to achieve a better detection effect and improve the accuracy of detection. Optionally, the second connecting rod 6 can be any suitable type of screw or bolt, and correspondingly, the positioning hole 802 is configured as a threaded hole.

[0050] At the same time, a positioning slot 803 is provided on the detection piece 3. On the one hand, the positioning slot 803 allows the second connecting rod 6 to pass through to realize the connection between the detection piece 3 and the additional platform 5. On the other hand, the positioning slot 803 communicates with multiple positioning holes 802 for the staff to choose, increasing the adjustment options, making the adjustment more precise and the use more flexible.

[0051] Preferably, as Figure 4 shown, a plurality of positioning holes 802 are arranged at equal intervals along the circumference of the hoop 1 on the same circle. Based on the above design, the positioning holes 802 are orderly and evenly distributed on the additional platform 5, so that the adjustment of the detection piece 3 is more precise and accurate, facilitating the rapid adjustment of the position of the detection piece 3.

[0052] In a possible implementation manner, the detection piece 3 is configured as a magnetic steel seat; or, the detection piece 3 is configured as a base provided with a magnetic steel block. Based on the above design, the magnetic steel has good corrosion resistance, temperature stability and permanent magnetism. When used as the detection piece 3, its corrosion resistance can extend its service life, its temperature stability can avoid the influence of its own thermal expansion and contraction on the detection result, and its permanent magnetism can cooperate with the magnetic force sensor to facilitate the detection equipment to perform detection. Correspondingly, the magnetic force sensor is arranged on the detection equipment.

[0053] Therefore, the detection piece 3 can be entirely made of magnetic steel material or partially made of magnetic steel material, with diverse choices, flexible and convenient to use, and helpful for adapting to different usage scenarios.

[0054] Optionally, when other types of sensors are selected for the detection device to detect the change in position, correspondingly, the detecting member 3 also selects any suitable existing component to cooperate with the detection device to achieve detection.

[0055] In a possible implementation, a detachable diameter-changing ring 7 is provided on the hoop 1. The diameter-changing ring 7 has a first arc surface for connecting the hoop 1 and a second arc surface for clamping the transmission rod. Among the first arc surface and the second arc surface, at least the second arc surface is provided with second anti-loosening teeth. Correspondingly, an installation groove adapted to the diameter-changing ring 7 is provided on the inner wall surface of the hoop 1.

[0056] Based on the above design, the inner diameter of the hoop 1 is changed by the diameter-changing ring 7, so as to be adapted to transmission rods with different outer diameters, thereby increasing the application range of the hoop 1 of the same specification. Correspondingly, multiple different specifications of the diameter-changing ring 7 are provided to increase the diversity of the change in the inner diameter of the hoop 1.

[0057] It is easy to understand that when the diameter-changing ring 7 is provided on the hoop 1, the hoop 1 is connected to the transmission rod through the diameter-changing ring 7. Therefore, the diameter-changing ring 7 is provided with second anti-loosening teeth to play an anti-loosening role. Correspondingly, the first anti-loosening teeth and the second anti-loosening teeth have the same function, and those skilled in the art can set them to any suitable existing tooth shapes, which will not be elaborated here.

[0058] Preferably, as Figure 4 shown, the second anti-loosening teeth are provided on both the first arc surface and the second arc surface. Based on this, the friction coefficient between the diameter-changing ring 7 and the hoop 1, as well as the friction coefficient between the diameter-changing ring 7 and the transmission rod, are simultaneously increased, reducing looseness and ensuring that the anti-loosening hoop can be stably in the designed position after using the diameter-changing ring 7.

[0059] It is easy to understand that the diameter-changing ring 7 can be connected to the hoop 1 by any suitable existing detachable connection method.

[0060] In a possible implementation, the anti-loosening rod 2 is arranged on the hoop 1 along the radial direction of the hoop 1. Correspondingly, a first hole body adapted to it is provided on the hoop 1, and a second hole body adapted to it is provided on the diameter-changing ring 7. Based on the above design, the anti-loosening rod 2 is arranged along the radial direction to ensure that the acting direction of its tightening force is perpendicular to the transmission rod, so that there is no need to decompose the tightening force, improving the anti-loosening effect of the anti-loosening rod 2. At the same time, the hoop 1 and the diameter-changing ring 7 are provided with adapted hole body structures to facilitate the connection of the anti-loosening rod 2 to the transmission rod.

[0061] Optionally, the anti-loosening rod 2 is selected as a set screw, and there are 2, 3 or 4 set screws. Based on the above design, on the basis of playing a role in fixed connection, the set screw can also prevent it from loosening or falling off due to vibration, oscillation or load, thereby ensuring the anti-loosening performance of the anti-loosening hoop.

[0062] Generally, restricted by the size of the hoop 1, the surrounding space, etc., 2, 3 or 4 set screws are provided, and multiple set screws are preferably evenly distributed in the circumferential direction of the anti-loosening hoop. In addition, those skilled in the art can also appropriately increase the number of set screws as needed.

[0063] Based on this anti-loosening hoop, this embodiment introduces a detection accessory, which includes a transmission rod, a driver, a knife switch and a detection device;

[0064] The anti-loosening hoop is fixed on the transmission rod, and the inserted end of the anti-loosening rod 2 is inserted into the transmission rod;

[0065] The driver is connected to the transmission rod and used to drive the transmission rod to rotate. The knife switch is connected to the transmission rod and rotates with the transmission rod. The detection device detects the rotation of the transmission rod through the detection part 3 and identifies the opening and closing state of the knife switch.

[0066] Based on this, in the detection accessory, the driver provides power and drives the transmission rod to rotate. The knife switch is connected to the transmission rod and follows the movement, so as to adjust the position of the knife switch and control the opening and closing of the knife switch. The anti-loosening hoop is arranged on the transmission rod. When the transmission rod rotates, the anti-loosening hoop also follows the movement, and the position of the detection part 3 also rotates. In this regard, the detection device detects the position change of the detection part 3, so as to identify the opening and closing state of the knife switch.

[0067] For the existing hoop, when it becomes loose due to temperature influence, due to the looseness, the existing hoop will be skewed or even slide down. Then, the position change of the hoop cannot accurately reflect the position change of the knife switch. At this time, the detection device cannot accurately detect the state of the knife switch, which will affect the subsequent work.

[0068] Therefore, the anti-loosening hoop is used to replace the existing hoop to eliminate the influence of temperature and stay at the designed position for a long time. The anti-loosening hoop can accurately reflect the position of the knife switch, so as to achieve the purpose of accurately detecting the state of the knife switch. And in the actual use process, if the loose hoop needs to be repaired, it can only be maintained after the substation is shut down and powered off, and the maintenance cost is high. The existing hoop is not convenient to use.

[0069] In a possible design, a closing and opening identification plate is provided on the anti-loosening hoop. Based on the above design scheme, the knife switch has an initial state of opening or closing. When the anti-loosening hoop is installed, the anti-loosening hoop is adjusted according to the initial state of the knife switch to improve the installation efficiency of the anti-loosening hoop. In the subsequent maintenance process, the staff can quickly judge the initial state of the knife switch through the closing and opening identification plate and make a comparison to improve the maintenance efficiency.

[0070] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lock - preventing hoop, characterized in that, Comprising: Hoop rings (1), there are two of them and they are detachably connected. First anti-loosening teeth are provided on the inner wall surfaces of each hoop ring (1); Anti-loosening rods (2), penetrating through the hoop rings (1), one end of which is configured as an embedding end that penetrates through the inner wall surface of the hoop ring (1), and at least one anti-loosening rod (2) is provided on each hoop ring (1); Detection piece (3), arranged on the hoop ring (1) and used to transmit the position information of the anti-loosening clamp; 2. The anti-loosening hoop according to claim 1, characterized in that, Connection holes (801) are respectively provided at both ends of the hoop ring (1), and a first connecting rod (4) is detachably provided on the connection holes (801), and the first connecting rod (4) is used to connect the two hoop rings (1); The hoop ring (1) has opposite outer wall surface and inner wall surface. An additional platform (5) extending outward is provided on the outer wall surface. The detection piece (3) is arranged on the additional platform (5). The first anti-loosening teeth are provided on the inner wall surface. And the additional platform (5) has opposite upper surface and lower surface, one of which is flush with the side surface of the hoop ring (1), and the other forms a stepped structure with the hoop ring (1).

3. The anti-loosening hoop according to claim 2, wherein The detection piece (3) is connected to the additional platform (5) through a second connecting rod (6). Correspondingly, a number of adjustment holes (802) adapted to the second connecting rod (6) are provided on the additional platform (5). An adjustment groove (803) for the second connecting rod (6) to pass through is provided on the detection piece (3), and the adjustment groove (803) communicates with at least one adjustment hole (802).

4. The anti-loosening hoop according to claim 3, wherein A number of adjustment holes (802) are arranged at equal intervals along the circumference of the hoop ring (1) on the same circumference.

5. The anti-loosening hoop according to claim 3 or 4, characterized in that, The detection piece (3) is configured as a magnetic steel seat; or, the detection piece (3) is configured as a base provided with a magnetic steel block.

6. The anti-loosening hoop according to any one of claims 1-4, characterized in that, A detachable diameter-changing ring (7) is provided on the hoop ring (1). The diameter-changing ring (7) has a first arc surface for connecting the hoop ring (1) and a second arc surface for clamping the transmission rod. At least on the second arc surface of the first arc surface and the second arc surface, second anti-loosening teeth are provided. Correspondingly, an installation groove adapted to the diameter-changing ring (7) is provided on the inner wall surface of the hoop ring (1).

7. The anti-loosening hoop according to claim 6, characterized in that, The anti-loosening rod (2) penetrates through the hoop ring (1) along the radial direction of the hoop ring (1). Correspondingly, a first hole body adapted thereto is provided on the hoop ring (1), and a second hole body adapted thereto is provided on the diameter-changing ring (7).

8. The anti-loosening hoop according to claim 7, characterized in that, The anti-loosening rod (2) is selected as a set screw, and there are 2, 3 or 4 set screws.

9. A detection accessory, characterized in that, Comprising a transmission rod, a driver, a knife switch and a detection device; The anti-loosening clamp according to any one of claims 1-8 is fixed on the transmission rod, and the embedding end of the anti-loosening rod (2) is inserted into the transmission rod; The driver is connected to the transmission rod and used to drive the transmission rod to rotate. The knife switch is connected to the transmission rod and rotates with the transmission rod. The detection device detects the rotation of the transmission rod through the detection piece (3) and identifies the opening and closing state of the knife switch.

10. The detection accessory according to claim 9, wherein, A closing and opening identification plate is provided on the anti-loosening clamp.

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