A rotary suspension clamp

Abstract

The present invention relates to the technical field of swing-type suspension clamps, and particularly relates to a swing-type suspension clamp, which comprises a body, a hanging plate, a rotating shaft, a rotating sleeve and a clamping pin. The rotating shaft is fixedly installed on the body, and the rotating sleeve is sleeved on the outer edge of the rotating shaft. For this swing-type suspension clamp, when the wire drives the body to swing for a long time, friction occurs between the rotating sleeve and the hanging plate to provide the first guarantee. During the long-term friction process, if the clamping pin breaks, the friction is transferred between the rotating shaft and the rotating sleeve to provide the second guarantee, avoiding the risk of the hanging plate being worn out. To prevent the rotating sleeve from being worn out by the rotating shaft, a one-way rotation mechanism drives the rotating sleeve to rotate, avoiding a single stress point on the rotating sleeve and long-term friction with the one-way rotation mechanism, providing the third guarantee. During the rotation before the clamping pin breaks, grease will lubricate the rotating sleeve and the hanging plate along the oil passage. After the clamping pin breaks, the elastic sealing mechanism can automatically close to prevent the grease from being oxidized.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary suspension clamps, and particularly relates to a rotary suspension clamp. Background Art

[0002] The rotary suspension clamp is used for hanging and supporting a wire. However, due to the long-term friction between the rotating shaft on the suspension clamp and the hanging plate under the action of wind, there is a probability that the hanging plate will be worn and broken from the bottom. Since the rotating shaft itself will be quenched to improve rigidity, it will not break prior to the hanging plate. Therefore, avoiding the breakage of the hanging plate is a problem to be solved. In the prior art, a bearing is generally installed between the rotating shaft and the hanging plate to reduce the occurrence of breakage. However, the outer shell of the bearing generally needs to be fixedly connected to the hanging plate, which leads to the long-term use of the bearing. The steel balls will exert a long-term frictional effect on the outer shell, and there is still a probability that the bottom of the outer shell will be worn through. Moreover, if the steel balls are worn, the bearing will be stuck. The main reason for the above-mentioned bearing failure is that it has only one guarantee. Whether the steel balls or the outer shell are worn, it will lead to the failure of the suspension clamp, and this kind of failure will lead to the wire being pulled off. High-altitude maintenance is difficult, resulting in more economic losses.

[0003] Therefore, it is necessary to design a rotary suspension clamp that can start multiple guarantees to extend the service life of the suspension clamp and reduce the occurrence of failures. Summary of the Invention

[0004] In view of the above technical deficiencies, the purpose of the present invention is to provide a rotary suspension clamp that can start multiple guarantees to extend the service life of the suspension clamp and reduce the occurrence of failures.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: The present invention provides a rotary suspension clamp, including a body, a hanging plate, a rotating shaft, a rotating sleeve, and a retaining pin. The rotating shaft is fixedly installed on the body. The rotating sleeve is sleeved on the outer edge of the rotating shaft. Both ends of the rotating sleeve are in contact with the body. The rotating sleeve is inserted into the inner edge of the hanging plate. The retaining pin is clamped between the rotating shaft and the rotating sleeve. A jack for the end of the retaining pin to be inserted into is provided on the rotating shaft. The end of the retaining pin is provided with an external thread. A threaded hole connected to the retaining pin is provided on the rotating sleeve. A fracture groove is provided on the outer edge of the retaining pin, and the fracture groove is located between the rotating sleeve and the rotating shaft.

[0006] Preferably, an annular oil storage chamber is provided in the middle of the rotating sleeve. Solid grease is stored in the annular oil storage chamber. A plurality of arc-shaped oil guiding grooves extend outward from both sides of the annular oil storage chamber. The plurality of arc-shaped oil guiding grooves are evenly distributed along the circumferential direction of the rotating shaft. The end of the notch of the arc-shaped oil guiding groove does not penetrate the end of the rotating sleeve. The fracture groove is located in the annular oil storage chamber.

[0007] Preferably, a one-way rotation mechanism is provided at the end of the rotating sleeve. A receiving groove for accommodating the one-way rotation mechanism is formed at the end of the rotating sleeve. When the rotating shaft rotates clockwise, the rotating sleeve will be driven to move in the same direction through the one-way rotation mechanism. When the rotating shaft rotates counterclockwise, the rotating sleeve stops moving.

[0008] Preferably, the one-way rotation mechanism includes a trapezoidal push block and a plurality of trapezoidal transmission blocks. The trapezoidal push block is slidably installed inside the rotating shaft. A sliding groove for the radial sliding of the trapezoidal push block is formed inside the rotating shaft. The end of the trapezoidal push block is perpendicular downward. A plurality of trapezoidal transmission blocks are fixedly installed on the inner wall of the rotating sleeve. When rotating clockwise, the flat end of the trapezoidal push block contacts the flat end of the trapezoidal transmission block. When rotating counterclockwise, the inclined end of the trapezoidal push block contacts the inclined end of the trapezoidal transmission block.

[0009] Preferably, a transverse groove is formed on the outer edge of the rotating sleeve, and a vertical groove for communicating the transverse groove is formed inside the rotating sleeve.

[0010] Preferably, a movable groove communicating with the vertical groove is formed on the rotating sleeve. An elastic sealing mechanism for sealing the vertical groove is arranged in the movable groove. A vertical sliding rod is arranged inside the rotating shaft. The vertical sliding rod is slidably installed inside the rotating shaft. A strip-shaped sliding groove for the vertical sliding of the vertical sliding rod is formed inside the rotating shaft. The side of the vertical sliding rod close to the elastic sealing mechanism is of an inclined surface structure. An inclined groove for the inclined surface of the vertical sliding rod to insert is formed on the elastic sealing mechanism, and inclined grooves extending outward are arranged on both sides of the vertical groove.

[0011] Preferably, the elastic sealing mechanism includes a pressing block, two guide posts and two springs. The pressing block is located in the movable groove. The two guide posts are slidably installed on the rotating sleeve. One ends of the two guide posts are fixedly connected to the pressing block. The spring is used to apply an elastic force for pressing the vertical sliding rod to the pressing block. A through groove is formed on the side of the pressing block close to the rotating shaft. One end of the through groove communicates with an arc-shaped oil guide groove, and the other end of the through groove communicates with the vertical groove.

[0012] Preferably, a pressing hole is formed in the middle of the rotating shaft, and the pressing hole communicates with the strip-shaped sliding groove for the vertical sliding rod to slide.

[0013] Preferably, the rotating shaft includes a screw and a nut. The end of the screw is of a polygonal structure. A groove for the end of the screw to be embedded is formed on the body. The nut is meshed and installed at the end of the screw, and one side of the nut abuts against the body.

[0014] Preferably, a clamping hole penetrating the screw is formed on the screw, and a steel wire is installed in the clamping hole. The steel wire contacts one side of the nut.

[0015] The beneficial effects of the present invention are as follows: for the rotary suspension clamp, when the wire drives the body to swing for a long time, friction occurs between the rotating sleeve and the hanging plate, providing the first guarantee. During the long-term friction process, if the pin breaks, the friction is transferred between the rotating shaft and the rotating sleeve, providing the second guarantee to avoid the risk of the hanging plate being worn out. To prevent the rotating sleeve from being worn out by the rotating shaft, the rotating sleeve is driven to rotate by the one-way rotation mechanism, avoiding a single stress point on the rotating sleeve and long-term friction with the one-way rotation mechanism, providing the third guarantee. During the rotation before the pin breaks, the grease will lubricate the rotating sleeve and the hanging plate along the oil passage. After the pin breaks, the elastic sealing mechanism can automatically close to prevent the grease from being oxidized, ensuring that the grease can continuously lubricate between the rotating shaft and the rotating sleeve, thus extending the service life of the suspension clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0018] Figure 2 It is an exploded three-dimensional structure schematic diagram of the present invention.

[0019] Figure 3 It is a cross-sectional view of the present invention.

[0020] Figure 4 It is Figure 3 a partial enlarged view of part A of

[0021] Figure 5 It is a three-dimensional cross-section Figure 1 .

[0022] Figure 6 It is a three-dimensional cross-sectional view of the rotating sleeve.

[0023] Figure 7 It is a three-dimensional cross-section Figure 2 .

[0024] Figure 8 It is Figure 4 a partial enlarged view of part B of

[0025] Figure 9 It is a cross-sectional view of the rotating sleeve.

[0026] Figure 10 It is a three-dimensional cross-sectional view of the rotating sleeve.

[0027] Figure 11 Is a three-dimensional sectional view after the installation of the elastic sealing mechanism.

[0028] Figure 12 Is a three-dimensional structural schematic diagram of the elastic sealing mechanism in the installed state.

[0029] Description of reference numerals: 1, body; 2, hanging plate; 3, rotating shaft; 3a, screw; 3b, nut; 3c, vertical slide bar; 3d, extrusion hole; 3e, steel wire; 4, rotating sleeve; 4a, annular oil storage chamber; 4b, arc-shaped oil guide groove; 4c, receiving groove; 4d, movable groove; 4e, vertical groove; 4f, horizontal groove; 4h, inclined groove; 5, retaining pin; 5a, fracture groove; 6, one-way rotation mechanism; 6a, trapezoidal push block; 6b, trapezoidal transmission block; 7, elastic sealing mechanism; 7a, extrusion block; 7b, guide post; 7c, spring. Specific implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment: The present invention provides a rotary suspension clamp, as Figure 1-5As shown in the figure, it includes a body 1, a hanging plate 2, a rotating shaft 3, a rotating sleeve 4 and a retaining pin 5. The rotating shaft 3 is fixedly installed on the body 1. When the body 1 rotates, it will drive the rotating shaft 3 to rotate synchronously. The rotating sleeve 4 is sleeved on the outer edge of the rotating shaft 3. Both ends of the rotating sleeve 4 are in contact with the body 1. The rotating sleeve 4 is inserted into the inner edge of the hanging plate 2. The hanging plate 2 is fixedly installed on the external frame by bolts. The retaining pin 5 is clamped between the rotating shaft 3 and the rotating sleeve 4. A jack for the end of the retaining pin 5 to be inserted into is provided on the rotating shaft 3. The end of the retaining pin 5 is provided with an external thread, and a threaded hole connected to the retaining pin 5 is provided on the rotating sleeve 4. A fracture groove 5a is provided on the outer edge of the retaining pin 5, and the fracture groove 5a is located between the rotating sleeve 4 and the rotating shaft 3. When the body 1 drives the rotating shaft 3 to rotate, since the retaining pin 5 connects the rotating shaft 3 and the rotating sleeve 4, the rotating sleeve 4 will rotate along with it. During the long-term rotation process, due to the friction between the rotating sleeve 4 and the hanging plate 2, when the rotating shaft 3 drives the rotating sleeve 4 to rotate, there will be resistance, and the resistance will be converted into the shear force between the rotating shaft 3 and the rotating sleeve 4. The stress point of the shear force is mainly on the retaining pin 5. Over time, the continuously stressed retaining pin 5 will break along the fracture groove 5a. Originally, the friction between the rotating sleeve 4 and the hanging plate 2 will be transformed into the friction between the rotating sleeve 4 and the rotating shaft 3. Therefore, the service life of the suspension clamp can be extended, and the situation of the hanging plate 2 breaking due to the continuous wear between the rotating sleeve 4 and the hanging plate 2 can be avoided. It should be noted that this rotary suspension clamp can also be applied to the fixed scenario of the ground wire.

[0032] If only the dry grinding method is used between the hanging plate 2, the rotating shaft 3 and the rotating sleeve 4 without lubrication, the service life of the suspension clamp will still be shortened. In order to lubricate the hanging plate 2, the rotating shaft 3 and the rotating sleeve 4 when they rotate, therefore, as Figure 6 and Figure 2As shown, an annular oil storage chamber 4a is formed in the middle of the rotating sleeve 4. Solid grease is stored in the annular oil storage chamber 4a. A plurality of arc-shaped oil guiding grooves 4b are formed on both sides of the annular oil storage chamber 4a and extend outward. The plurality of arc-shaped oil guiding grooves 4b are evenly distributed along the circumferential direction of the rotating shaft 3. The notch end of the arc-shaped oil guiding groove 4b does not penetrate the end of the rotating sleeve 4. The fracture groove 5a is located in the annular oil storage chamber 4a. When the pin 5 breaks along the fracture groove 5a, the rotating sleeve 4 and the rotating shaft 3 can rotate relative to each other. During the rotation, the grease in the annular oil storage chamber 4a slowly melts due to the heat generated by friction and lubricates the space between the rotating shaft 3 and the rotating sleeve 4 along the arc-shaped oil guiding grooves 4b, reducing the friction between the rotating shaft 3 and the rotating sleeve 4. The fracture groove 5a is located in the annular oil storage chamber 4a, which extends the cantilever beam of the pin 5 and makes it easier to control and break. When initially adding grease to the annular oil storage chamber 4a, the pin 5 is removed first, and grease is added into the interior along the threaded hole formed in the rotating sleeve 4. After the grease is added, the pin 5 is inserted to seal. And after the pin 5 breaks, the threaded end of the pin 5 still connects to the threaded hole on the rotating sleeve 4, continuing to play a sealing role. The arc-shaped oil guiding grooves 4b do not penetrate the rotating sleeve 4 mainly to keep the ends of the arc-shaped oil guiding grooves 4b in a closed state to prevent grease from overflowing.

[0033] It should be noted that if the rotating shaft 3 and the rotating sleeve 4 rub against each other after the pin 5 breaks, and if the rotating sleeve 4 is in a non-rotating state, the contact position where the rotating shaft 3 wears the rotating sleeve 4 remains constant all the time, which will result in a probability that the bottom of the rotating sleeve 4 is worn and broken. Therefore, to further improve the service life of the suspension clamp, a one-way rotation mechanism 6 is provided at the end of the rotating sleeve 4. A receiving groove 4c for accommodating the one-way rotation mechanism 6 is formed at the end of the rotating sleeve 4. When the rotating shaft 3 rotates clockwise, the rotating sleeve 4 will be driven to move in the same direction through the one-way rotation mechanism 6. When the rotating shaft 3 rotates counterclockwise, the rotating sleeve 4 stops moving. By rotating the rotating shaft 3 and then converting the movement of the rotating shaft 3 through the one-way rotation mechanism 6, the clockwise rotation of the rotating shaft 3 can drive the rotating sleeve 4 to rotate clockwise together, while the rotating sleeve 4 cannot move when the rotating shaft 3 rotates counterclockwise, avoiding the displacement driven by the clockwise rotation of the rotating shaft 3 and bringing it back when the rotating shaft 3 rotates counterclockwise.

[0034] If the rotating shaft 3 rotates counterclockwise, it will drive the rotating sleeve 4 to rotate, which will cause the rotating sleeve 4 to keep rotating. Although it is not a reciprocating rotation, it is still a continuous rotation in one direction, which will still increase the frictional burden between the rotating sleeve 4 and the hanging plate 2. In order to enable the rotating sleeve 4 to be driven to rotate and the rotating sleeve 4 is not driven to rotate for a long time and continuously, for this reason, the one-way rotation mechanism 6 includes a trapezoidal push block 6a and a plurality of trapezoidal transmission blocks 6b. The trapezoidal push block 6a is slidably installed in the rotating shaft 3. A chute for the radial sliding of the trapezoidal push block 6a is provided in the rotating shaft 3. The end of the trapezoidal push block 6a is perpendicular downward. A plurality of trapezoidal transmission blocks 6b are fixedly installed on the inner wall of the rotating sleeve 4. When rotating clockwise, the flat end of the trapezoidal push block 6a contacts the flat end of the trapezoidal transmission block 6b. When rotating counterclockwise, the inclined end of the trapezoidal push block 6a contacts the inclined end of the trapezoidal transmission block 6b. By rotating the rotating shaft 3, the trapezoidal push block 6a can be driven. When the trapezoidal push block 6a rotates, the trapezoidal push block 6a will, through its own structure, push the rotating sleeve 4 to rotate only clockwise and cannot rotate counterclockwise. And when the wind force is small, the amplitude of the shaking of the wire driving the body 1 is small, which makes the amplitude of the shaking of the rotating shaft 3 decrease at the same time. Although the trapezoidal push block 6a can be driven to rotate, the trapezoidal push block 6a cannot move from one trapezoidal transmission block 6b to the next trapezoidal transmission block 6b, that is, reciprocate between the two trapezoidal transmission blocks 6b and cannot push the rotating sleeve 4 to rotate. This uses the influence of the shaking amplitude of the body 1. Only in the case of relatively large wind force can the rotating sleeve 4 be pushed to rotate, avoiding the problem of driving the rotating sleeve 4 to rotate for a long time.

[0035] Although a large amount of solid grease is stored in the annular oil storage chamber 4a, these solid greases can only lubricate between the rotating shaft 3 and the rotating sleeve 4, but cannot lubricate between the rotating sleeve 4 and the hanging plate 2, which will cause wear and damage between the two. For this reason, as Figure 8 、 9 and shown in 10, a transverse groove 4f is provided on the outer edge of the rotating sleeve 4, and a vertical groove 4e for connecting the transverse groove 4f and the transverse groove 4f is provided inside the rotating sleeve 4. When the rotating sleeve 4 rotates, the grease in the annular oil storage chamber 4a will flow into the transverse groove 4f along the arc-shaped oil guiding groove 4b and the vertical groove 4e. Then, through the rotation of the rotating sleeve 4, the transverse groove 4f will rotate along with it, so that the grease in the transverse groove 4f can be evenly smeared between the rotating sleeve 4 and the hanging plate 2, realizing lubrication between the two and reducing wear and damage.

[0036] When relative rotation can occur between the rotating shaft 3 and the rotating sleeve 4, the vertical groove 4e originally facing the lower surface will rotate towards the upper surface. At this time, the grease is in a situation where it can be in long-term contact with air, which will cause the grease to be affected by the outside world and is prone to oxidation, resulting in the failure of the grease. When it is not separated from the rotating shaft 3 and the rotating sleeve 4, it is sealed and covered by the hanging plate 2, so there is no need to worry. Therefore, when the rotating shaft 3 and the rotating sleeve 4 are separated, the vertical groove 4e can be automatically closed. Therefore, as Figure 8 、 Figure 10 and Figure 11 shown, an active groove 4d communicating with the vertical groove 4e starts on the rotating sleeve 4, and an elastic closing mechanism 7 for closing the vertical groove 4e is arranged in the active groove 4d. A vertical sliding rod 3c is arranged in the rotating shaft 3. The vertical sliding rod 3c can be vertically slidably installed in the rotating shaft 3. A strip-shaped sliding groove for the vertical sliding rod 3c to slide is opened in the rotating shaft 3. The side of the vertical sliding rod 3c close to the elastic closing mechanism 7 is a bevel structure. An inclined groove for the bevel of the vertical sliding rod 3c to insert is opened on the elastic closing mechanism 7, and inclined grooves 4h extending outward are arranged on both sides of the vertical groove 4e. From Figure 11 it can be seen that the vertical sliding rod 3c forms a resisting trend against the elastic closing mechanism 7, so that the elastic closing mechanism 7 cannot close the vertical groove 4e, enabling the grease to flow. If the pin 5 breaks, the rotating shaft 3 and the rotating sleeve 4 can rotate relative to each other, which causes the rotating shaft 3 to drive the vertical sliding rod 3c to rotate. The vertical sliding rod 3c will come into contact with the inclined groove 4h, causing the vertical sliding rod 3c to be pushed upward along the strip-shaped sliding groove into the interior of the rotating shaft 3, realizing the retraction of the vertical sliding rod 3c, enabling the elastic closing mechanism 7 to be resisted, and then closing the vertical groove 4e. This can ensure that after the pin 5 breaks, when the vertical groove 4e rotates upward, it will not be in long-term contact with oxygen and oxidize. Among them, to make the vertical sliding rod 3c rotate better, the left and right ends of the two vertical sliding rods 3c can be cut obliquely inward, so that the vertical sliding rod 3c can be better pushed upward.

[0037] As Figure 11 and Figure 12 shown, the elastic closing mechanism 7 includes a pressing block 7a, two guide posts 7b and two springs 7c. The pressing block 7a is located in the active groove 4d. The two guide posts 7b can be horizontally slidably installed on the rotating sleeve 4. One end of the two guide posts 7b is fixedly connected to the pressing block 7a. The spring 7c is used to apply an elastic force to the pressing block 7a to press the vertical sliding rod 3c. When the vertical sliding rod 3c retracts upward, the spring 7c will push the pressing block 7a, so that the pressing block 7a closes the vertical groove 4e. A through groove is opened on the side of the pressing block 7a close to the rotating shaft 3. One end of the through groove communicates with the arc-shaped oil guide groove 4b, and the other end of the through groove communicates with the vertical groove 4e. So that when it is not closed, the grease can pass through the through groove and enter the vertical groove 4e.

[0038] As Figure 4 shown, an extrusion hole 3d is provided in the middle of the rotating shaft 3. The extrusion hole 3d communicates with the strip-shaped chute for the vertical slide rod 3c to slide. At the initial installation, when the rotating shaft 3 is installed in place, at this time, the vertical slide rod 3c cannot push open the extrusion block 7a yet. At this time, a tool is inserted into the extrusion hole 3d, and the tool will push the vertical slide rod 3c downward, so that the inclined surface of the vertical slide rod 3c contacts the inclined surface of the extrusion block 7a, and then the extrusion block 7a can be pushed open, so that the elastic sealing mechanism 7 opens the vertical groove 4e.

[0039] As Figure 3 shown, the rotating shaft 3 includes a screw 3a and a nut 3b. The end of the screw 3a is of a polygonal structure. A groove for the end of the screw 3a to be embedded is provided on the main body 1. The nut 3b is meshed and installed at the end of the screw 3a, and one side of the nut 3b abuts against the main body 1. Through the action of the groove, a clamping connection is formed between the screw 3a and the main body 1, and when the main body 1 rotates, the screw 3a will be driven to rotate together. Among them, during the process of inserting the screw 3a into the main body 1, the one-way rotation mechanism 6 can be rotated upward, and then before the end of the screw 3a is about to be stuck into the groove, the one-way rotation mechanism 6 is rotated downward again, which can prevent the one-way rotation mechanism 6 and the vertical slide rod 3c from sliding out downward due to gravity.

[0040] As Figure 3 shown, a clamping hole penetrating the screw 3a is provided on the screw 3a, and a steel wire 3e is installed in the clamping hole. The steel wire 3e contacts one side of the nut 3b. When the main body 1 is used for a long time, due to vibration, the nut 3b and the screw 3a will become loose, and the steel wire 3e is used to limit the nut 3b to prevent the nut 3b from loosening and displacing.

[0041] During use, when the main body 1 drives the rotating shaft 3 to rotate, since the clamping pin 5 connects the rotating shaft 3 and the rotating sleeve 4, the rotating sleeve 4 will rotate along with it. During the long-term rotation process, due to the friction between the rotating sleeve 4 and the hanging plate 2, when the rotating shaft 3 drives the rotating sleeve 4 to rotate, there will be resistance, and the resistance will be converted into the shear force between the rotating shaft 3 and the rotating sleeve 4. The stress point of the shear force is mainly on the clamping pin 5. Over time, the continuously stressed clamping pin 5 will break along the fracture groove 5a. Originally, the friction between the rotating sleeve 4 and the hanging plate 2 will be changed to the friction between the rotating sleeve 4 and the rotating shaft 3.

[0042] When the rotating shaft 3 rotates, through the action of the one-way rotation mechanism 6, when the rotation amplitude is relatively large, the rotating sleeve 4 can be driven to rotate, and the friction position of the rotating shaft 3 on the rotating sleeve 4 changes.

[0043] When the rotating shaft 3 drives the rotating sleeve 4 to rotate, the grease in the annular oil storage chamber 4a will flow into the transverse groove 4f along the vertical groove 4e to lubricate between the rotating sleeve 4 and the hanging plate 2. After the split pin 5 breaks, the rotating shaft 3 will rotate, causing the elastic sealing mechanism 7 to seal the vertical groove 4e, and the grease will only lubricate between the rotating shaft 3 and the rotating sleeve 4.

[0044] For this rotary suspension clamp, when the conductor drives the body 1 to swing for a long time, friction occurs between the rotating sleeve 4 and the hanging plate 2 to provide the first guarantee. During the long-term friction process, the split pin 5 breaks, and the friction is transferred to between the rotating shaft 3 and the rotating sleeve 4 to provide the second guarantee, avoiding the risk of the hanging plate 2 being worn out. To prevent the rotating sleeve 4 from being worn out by the rotating shaft 3, the one-way rotation mechanism 6 drives the rotating sleeve 4 to rotate, avoiding a single stress point on the rotating sleeve 4 and long-term friction with the one-way rotation mechanism 6, providing the third guarantee. And during the rotation before the split pin 5 breaks, the grease will lubricate the rotating sleeve 4 and the hanging plate 2 along the oil passage. After the split pin 5 breaks, the elastic sealing mechanism 7 can automatically close to prevent the grease from being oxidized, ensuring that the grease can continuously lubricate between the rotating shaft 3 and the rotating sleeve 4, thereby extending the service life of the suspension clamp.

[0045] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A rotary suspension clamp, characterized in that: The utility model comprises a body (1), a hanging plate (2), a rotating shaft (3), a rotating sleeve (4) and a bayonet (5), wherein the rotating shaft (3) is fixedly mounted on the body (1), the rotating sleeve (4) is sleeved on the outer edge of the rotating shaft (3), the two ends of the rotating sleeve (4) are respectively in contact with the body (1), the rotating sleeve (4) is inserted into the inner edge of the hanging plate (2), the bayonet (5) is clamped between the rotating shaft (3) and the rotating sleeve (4), the rotating shaft (3) is provided with a plug hole for the end of the bayonet (5) to be clamped, the end of the bayonet (5) is provided with an external thread, the rotating sleeve (4) is provided with a screw hole connected with the bayonet (5), the outer edge of the bayonet (5) is provided with a breaking groove (5a), and the breaking groove (5a) is located between the rotating sleeve (4) and the rotating shaft (3); An annular oil storage chamber (4a) is provided in the middle of the rotating sleeve (4), and solid grease is stored in the annular oil storage chamber (4a). A plurality of arc-shaped oil guide grooves (4b) are provided on both sides of the annular oil storage chamber (4a) extending outwards. The plurality of arc-shaped oil guide grooves (4b) are evenly distributed along the circumferential direction of the rotating shaft (3), and the notch ends of the arc-shaped oil guide grooves (4b) do not penetrate the ends of the rotating sleeve (4), and the fracture grooves (5a) are located in the annular oil storage chamber (4a); A one-way rotating mechanism (6) is disposed at the end of the rotating sleeve (4). A receiving groove (4c) for receiving the one-way rotating mechanism (6) is provided at the end of the rotating sleeve (4). When the rotating shaft (3) rotates clockwise, the one-way rotating mechanism (6) drives the rotating sleeve (4) to move in the same direction. When the rotating shaft (3) rotates counterclockwise, the rotating sleeve (4) stops moving.

2. A rotary suspension clamp as claimed in claim 1, characterized in that: The one-way rotating mechanism (6) comprises a trapezoidal push block (6a) and a plurality of trapezoidal transmission blocks (6b). The trapezoidal push block (6a) is slidably mounted in the rotating shaft (3). A slide groove is provided in the rotating shaft (3) for radial sliding of the trapezoidal push block (6a). The end of the trapezoidal push block (6a) is vertically downward. The plurality of trapezoidal transmission blocks (6b) are fixedly mounted on the inner wall of the rotating sleeve (4). When rotating clockwise, the plane end of the trapezoidal push block (6a) contacts the plane end of the trapezoidal transmission block (6b). When rotating counterclockwise, the inclined surface end of the trapezoidal push block (6a) contacts the inclined surface end of the trapezoidal transmission block (6b).

3. A rotary suspension clamp as claimed in claim 1, characterized in that: A transverse groove (4f) is provided on the outer edge of the rotating sleeve (4), and a vertical groove (4e) for connecting the transverse groove (4f) and the transverse groove (4f) is provided inside the rotating sleeve (4).

4. A rotary suspension clamp as claimed in claim 3, characterized in that: The rotating sleeve (4) is provided with a movable groove (4d) connected to the vertical groove (4e), and an elastic closing mechanism (7) for closing the vertical groove (4e) is arranged in the movable groove (4d). A vertical slide bar (3c) is arranged in the rotating shaft (3), and the vertical slide bar (3c) is installed in the rotating shaft (3) in a manner that it can slide vertically. A strip-shaped slide groove for the vertical slide bar (3c) to slide is provided in the rotating shaft (3), and a side of the vertical slide bar (3c) close to the elastic closing mechanism (7) is an inclined structure. An inclined groove for the inclined surface of the vertical slide bar (3c) to be inserted is provided on the elastic closing mechanism (7), and inclined grooves (4h) extending outward are provided on both sides of the vertical groove (4e).

5. A rotary suspension clamp as claimed in claim 4, characterized in that: The elastic sealing mechanism (7) comprises an extrusion block (7a), two guide pillars (7b) and two springs (7c); the extrusion block (7a) is located in the movable groove (4d); the two guide pillars (7b) are mounted on the rotating sleeve (4) in a horizontally slidable manner; one end of the two guide pillars (7b) is fixedly connected to the extrusion block (7a); the spring (7c) is used to apply an elastic force to the extrusion block (7a) to extrude the vertical sliding rod (3c); a through groove is provided on one side of the extrusion block (7a) close to the rotating shaft (3); one end of the through groove is connected to the arc-shaped oil guide groove (4b); and the other end of the through groove is connected to the vertical groove (4e).

6. A rotary suspension clamp as claimed in claim 5, characterized in that: An extrusion hole (3d) is provided in the middle of the rotating shaft (3), and the extrusion hole (3d) is connected to a strip-shaped sliding groove for the vertical sliding rod (3c) to slide.

7. A rotary suspension clamp as claimed in claim 6, characterized in that: The rotating shaft (3) comprises a screw (3a) and a nut (3b); the end of the screw (3a) is a polygonal structure; a groove for the end of the screw (3a) to be embedded is provided on the body (1); the nut (3b) is meshedly mounted on the end of the screw (3a); and one side of the nut (3b) is in contact with the body (1).

8. A rotary suspension clamp as claimed in claim 7, characterized in that: The screw (3a) is provided with a clamping hole which passes through the screw (3a), a steel wire (3e) is installed in the clamping hole, and the steel wire (3e) is in contact with one side of the nut (3b).

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