Protection mechanism and cable tensioning device

Abstract

The invention relates to the field of power construction, and discloses a protection mechanism and a cable tensioning device.The protection mechanism comprises an installation component, and the installation component comprises a supporting assembly, an auxiliary assembly installed on the outer side of the supporting assembly, a connecting assembly installed on the outer side of the supporting assembly and a detection assembly installed on the outer side of the connecting assembly; the adjusting assembly is mounted on the outer side of the connecting assembly; according to the device, through mutual cooperation of all parts, the tensile force borne by the cable can be reflected through the deformation quantity of the first spring, flexible adjustment can be conducted according to cables with different rated tensile forces by adjusting the position of the screw rod, when the tensile force of the cable reaches the rated range, the shifting block can make collision sound, and the cable is prevented from falling off along with increasing of the tensile force borne by the cable. And the collision sound is also increased, so that the situation that a worker does not hear the collision sound due to errors is prevented.

Description

Technical Field

[0001] The invention relates to the field of electric power construction, in particular to a protection mechanism and a cable tensioning device. Background Art

[0002] When most cables are installed, a certain length is reserved to avoid the situation where the cable is too short to meet the demand. However, after this method is implemented, the cable is too long and it is easy for the cable to loosen and fall, which reduces the neatness and beauty of the cable connection and also poses certain safety hazards.

[0003] In the prior art, cable tensioning equipment is usually used to tighten the cable. However, during the tensioning process, the cable tensioning condition is usually only observed by human eyes, and the tension on the cable cannot be accurately judged, which can easily cause the cable to be over-tensioned and cause cable damage. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to prevent the cable from being over-tensioned.

[0005] The above technical problem is solved by the following technical solution: The present invention proposes a protection mechanism, which includes:

[0006] The installation component includes a supporting component, an auxiliary component installed on the outside of the supporting component, a connecting component installed on the outside of the supporting component, a detecting component installed on the outside of the connecting component, and an adjusting component installed on the outside of the connecting component.

[0007] In a preferred implementation manner of the protection mechanism of the present invention: the support assembly includes a cover plate and a transition wheel rotatably connected to the outer side of the cover plate.

[0008] In a preferred embodiment of the protection mechanism of the present invention: the auxiliary component includes a bracket fixedly connected to the outer side of the cover plate, a first roller rotatably connected to the outer side of the bracket, and a groove formed in the first roller.

[0009] In a preferred embodiment of the protection mechanism of the present invention: the connecting assembly includes a support frame fixedly connected to the outer side of the cover plate, a shell fixedly connected to the outer side of the support frame, and a first spring arranged inside the shell.

[0010] In a preferred embodiment of the protection mechanism of the present invention: the detection assembly includes a telescopic frame slidably connected to the inside of the housing, a stopper fixedly connected to the outside of the telescopic frame, and a second roller rotatably connected to the outside of the telescopic frame;

[0011] Wherein, one end of the first spring is fixedly connected to the inside of the housing, and the other end of the first spring is fixedly connected to the outside of the stopper.

[0012] In a preferred embodiment of the protection mechanism of the present invention: The adjustment assembly includes a mounting plate slidably connected to the inside of the housing, a limiting block fixedly connected to the outside of the mounting plate, and a limiting plate fixedly connected to the outside of the mounting plate, a screw rod threadedly connected to the outside of the limiting plate, a cavity opened inside the mounting plate, a slider block slidably connected to the inside of the cavity, and a second spring provided on the outside of the slider block;

[0013] Wherein, the screw rod is slidably connected to the housing, one end of the second spring is fixedly connected to the outside of the slider block, and the other end of the second spring is fixedly connected to the inside of the cavity.

[0014] The present invention also provides a cable tensioning device.

[0015] In a preferred embodiment of the cable tensioning device of the present invention: A cable tensioning device includes the protection mechanism as described above, and further includes,

[0016] A main body component, the main body component includes a tightening component installed outside the support component, a power component installed inside the tightening component, and a clamping component installed inside the tightening component.

[0017] In a preferred embodiment of the cable tensioning device of the present invention: The tightening component includes a box body fixedly connected to the outside of the cover plate, a side door hinged to the outside of the box body, and a rotating shaft rotatably connected to the inside of the box body, a roller fixedly connected to the outside of the rotating shaft.

[0018] In a preferred embodiment of the cable tensioning device of the present invention: The power component includes a motor installed inside the box body, a small gear fixedly connected to the output shaft of the motor, and a large gear fixedly connected to the outside of the rotating shaft;

[0019] Wherein, the large gear meshes with the small gear.

[0020] In a preferred embodiment of the cable tensioning device of the present invention: The clamping component includes a ratchet fixedly connected to the outside of the rotating shaft, and a pawl rotatably connected to the outside of the box body.

[0021] The beneficial effects of the present invention are as follows: Through the mutual cooperation of various components, the device can reflect the tension on the cable through the deformation of the first spring, and can flexibly adjust for cables with different rated tensions by adjusting the position of the screw. When the cable tension reaches the rated range, the slider will make a collision sound, and as the tension on the cable increases, the collision sound also increases, thus preventing the situation where the staff fails to hear the collision sound due to mistakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description only relate to some embodiments of the present invention, rather than limiting the present invention. Among them:

[0023] Figure 1 shows the overall structural schematic diagram of the present invention;

[0024] Figure 2 shows the schematic diagram of the adjustment component of the present invention;

[0025] Figure 3 shows the cross-sectional view of the installation component of the present invention;

[0026] Figure 4 shows the schematic diagram of the main body component of the present invention; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the specific embodiments and the accompanying drawings.

[0028] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention, but these terms can change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms can be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0029] Referring to Figures 1 to 4 , this embodiment provides a protection mechanism, including,

[0030] The installation component 1, the installation component 1 includes a support component 11, an auxiliary component 12 installed outside the support component 11, a connection component 13 installed outside the support component 11, a detection component 14 installed outside the connection component 13, and an adjustment component 15 installed outside the connection component 13.

[0031] The support component 11 includes a cover plate 111 and a transition wheel 112 rotatably connected to the outside of the cover plate 111.

[0032] The auxiliary component 12 includes a bracket 121 fixedly connected to the outside of the cover plate 111, a first roller 122 rotatably connected to the outside of the bracket 121, and a groove 123 formed inside the first roller 122.

[0033] The connection component 13 includes a support frame 131 fixedly connected to the outside of the cover plate 111, a housing 132 fixedly connected to the outside of the support frame 131, and a first spring 133 disposed inside the housing 132.

[0034] The detection component 14 includes a telescopic frame 141 slidably connected to the inside of the housing 132, a stop block 142 fixedly connected to the outside of the telescopic frame 141, and a second roller 143 rotatably connected to the outside of the telescopic frame 141;

[0035] Wherein, one end of the first spring 133 is fixedly connected to the inside of the housing 132, and the other end of the first spring 133 is fixedly connected to the outside of the stop block 142.

[0036] The cable A is tensioned around the first roller 122, the second roller 143 and the transition wheel 112.

[0037] As shown in the appendix Figure 3 As shown, after the cable A bypasses the second roller 143, the cable A at the upper and lower ends of the second roller 143 is parallel to the telescopic frame 141.

[0038] Pull the cable A near the transition wheel 112 to tension the cable A. During this process, the first roller 122, the second roller 143 and the transition wheel 112 will rotate as the cable A moves, thereby reducing the friction force on the cable A.

[0039] During the tensioning process, as the cable A is tensioned, the tension force on the cable A will gradually increase. At this time, under the action of the tension force, the cable A will pull the second roller 143 to move towards the first roller 122, and the first roller 122 presses the first spring 133 through the telescopic frame 141 and the stop block 142.

[0040] The magnitude of the tension force on the cable A can be calculated through the deformation of the first spring 133.

[0041] As an embodiment provided in this application, as Figures 1 to 3, the adjusting component 15 includes a mounting plate 151 slidably connected inside the housing 132, a limiting block 152 fixedly connected to the outside of the mounting plate 151, and a limiting plate 153 fixedly connected to the outside of the mounting plate 151, a screw 154 threadedly connected to the outside of the limiting plate 153, a cavity 155 formed inside the mounting plate 151, a slider 156 slidably connected inside the cavity 155, and a second spring 157 arranged on the outside of the slider 156;

[0042] Wherein, the screw 154 is slidably connected to the housing 132, one end of the second spring 157 is fixedly connected to the outside of the slider 156, and the other end of the second spring 157 is fixedly connected to the inside of the cavity 155.

[0043] Before tightening the cable A, it is necessary to know the rated tensile force range that the cable A can withstand according to the specifications of the cable A.

[0044] When the second roller 143 is pulled by the cable A until the stopper 142 contacts the screw 154, if the cable A is further tightened at this time, the stopper 142 will push the screw 154 to move towards the first roller 122, and the screw 154 will drive the mounting plate 151 to move through the limiting plate 153.

[0045] When the mounting plate 151 moves, the slider 156 will contact the first roller 122. When the first roller 122 rotates until the groove 123 aligns with the slider 156, the slider 156 will insert into the groove 123. As the groove 123 continues to rotate, under the mutual extrusion of the slopes of the groove 123 and the slider 156, the slider 156 will leave the groove 123 and partially retract into the cavity 155, and at this time the second spring 157 is compressed. When the first roller 122 rotates until the groove 123 aligns with the slider 156 again, under the resilience of the second spring 157, the slider 156 will be quickly ejected. During this process, a limiting plate at one end of the slider 156 will hit the side wall of the cavity 155, thereby generating a collision sound.

[0046] It should be noted that when the stopper 142 just starts to push the screw 154 to move, only a small part of the front end of the slider 156 enters the inside of the groove 123, that is, when the slider 156 retracts into the cavity 155, only a small part of the second spring 157 is compressed, and at this time the collision sound is relatively small. As the stopper 142 continues to push the screw 154 to move, the moving distance of the screw 154 increases, the length of the part of the slider 156 inserted into the groove 123 increases, that is, the compressed length of the second spring 157 increases, and the collision sound also increases accordingly.

[0047] By rotating the screw 154, the length of the screw 154 inside the housing 132 can be adjusted, that is, the distance between the screw 154 and the stopper 142. When the deformation amount of the first spring 133 exceeds the distance between the screw 154 and the stopper 142, the collision sound is emitted.

[0048] According to the rated tensile force range of cable A, the staff can adjust the position of the screw rod 154, so as to adjust the deformation of the first spring 133 when the collision sound is generated.

[0049] When the staff hears the collision sound, it means that the first spring 133 has reached the predetermined deformation at this time, that is, the tensile force received by cable A has reached the rated range, and the tensioning should be stopped at this time.

[0050] As the tensile force on cable A increases, the collision sound also becomes louder, making it more difficult for the staff to ignore the collision sound, so as to prevent the tensile force on cable A from exceeding the rated range due to the staff's mistake.

[0051] Refer to Figures 1 to 4 , this embodiment provides a cable tensioning device, including a protection mechanism, and also including,

[0052] The main body component 2, the main body component 2 includes a tightening component 21 installed outside the support component 11, a power component 22 installed inside the tightening component 21, and a clamping component 23 installed inside the tightening component 21.

[0053] The tightening component 21 includes a box body 211 fixedly connected to the outside of the cover plate 111, a side door 212 hinged to the outside of the box body 211, and a rotating shaft 213 rotatably connected to the inside of the box body 211, and a drum 214 fixedly connected to the outside of the rotating shaft 213.

[0054] One end of cable A is connected to the drum 214. When the drum 214 rotates, cable A will be wound around the outside of the drum 214, thereby realizing the tensioning of cable A.

[0055] As an embodiment provided in this application, as Figure 4 , the power component 22 includes a motor 221 installed inside the box body 211, a small gear 222 fixedly connected to the output shaft of the motor 221, and a large gear 223 fixedly connected to the outside of the rotating shaft 213;

[0056] Among them, the large gear 223 meshes with the small gear 222.

[0057] Driven by the motor 221, the rotation speed of the rotating shaft 213 is less than the rotation speed of the output shaft of the motor 221 through the meshing of the large gear 223 and the small gear 222.

[0058] As an embodiment provided in this application, as Figure 4 , the clamping component 23 includes a ratchet wheel 231 fixedly connected to the outside of the rotating shaft 213, and a pawl 232 rotatably connected to the outside of the box body 211.

[0059] After the motor 221 stops, since the pawl 232 catches the ratchet wheel 231, the ratchet wheel 231 cannot rotate in the reverse direction, thereby preventing the drum 214 from rotating in the reverse direction under the influence of the pulling force of the cable A after the motor 221 stops, resulting in the loosening of the cable A.

[0060] Finally, it should be noted that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A protection mechanism, characterized in that: including, a mounting component (1), the mounting component (1) including a support assembly (11), an auxiliary assembly (12) mounted outside the support assembly (11), a connection assembly (13) mounted outside the support assembly (11), a detection assembly (14) mounted outside the connection assembly (13), and an adjustment assembly (15) mounted outside the connection assembly (13).

2. The protection mechanism according to claim 1, characterized in that: The support assembly (11) includes a cover plate (111) and a transition wheel (112) rotatably connected outside the cover plate (111).

3. The protection mechanism according to claim 2, characterized in that: The auxiliary assembly (12) includes a bracket (121) fixedly connected outside the cover plate (111), a first roller (122) rotatably connected outside the bracket (121), and a groove (123) formed inside the first roller (122).

4. The protection mechanism according to claim 2 or 3, characterized in that: The connection assembly (13) includes a support frame (131) fixedly connected outside the cover plate (111), a housing (132) fixedly connected outside the support frame (131), and a first spring (133) disposed inside the housing (132).

5. The protection mechanism according to claim 4, characterized in that: The detection assembly (14) includes a telescopic frame (141) slidably connected inside the housing (132), a stopper (142) fixedly connected outside the telescopic frame (141), and a second roller (143) rotatably connected outside the telescopic frame (141); wherein, one end of the first spring (133) is fixedly connected inside the housing (132), and the other end of the first spring (133) is fixedly connected outside the stopper (142).

6. The protection mechanism according to claim 5, characterized in that: The adjustment assembly (15) includes a mounting plate (151) slidably connected inside the housing (132), a limit block (152) fixedly connected outside the mounting plate (151), a limit plate (153) fixedly connected outside the mounting plate (151), a screw rod (154) threadedly connected outside the limit plate (153), a cavity (155) formed inside the mounting plate (151), a dial block (156) slidably connected inside the cavity (155), and a second spring (157) disposed outside the dial block (156); wherein, the screw rod (154) is slidably connected to the housing (132), one end of the second spring (157) is fixedly connected outside the dial block (156), and the other end of the second spring (157) is fixedly connected inside the cavity (155).

7. A cable tensioning device, characterized in that: including the protection mechanism according to any one of claims 2 to 6, further including, a main body component (2), the main body component (2) including a tightening assembly (21) mounted outside the support assembly (11), a power assembly (22) mounted inside the tightening assembly (21), and a clamping assembly (23) mounted inside the tightening assembly (21).

8. The cable tensioning device according to claim 7, characterized in that: The tightening assembly (21) includes a box body (211) fixedly connected to the outside of the cover plate (111), a side door (212) hinged to the outside of the box body (211), and a rotating shaft (213) rotatably connected to the inside of the box body (211), and a drum (214) fixedly connected to the outside of the rotating shaft (213).

9. The cable tensioning device according to claim 8, characterized in that: The power assembly (22) includes a motor (221) installed inside the box body (211), a small gear (222) fixedly connected to the output shaft of the motor (221), and a large gear (223) fixedly connected to the outside of the rotating shaft (213); wherein, the large gear (223) meshes with the small gear (222).

10. The cable tensioning device according to claim 9, characterized in that: The clamping assembly (23) includes a ratchet wheel (231) fixedly connected to the outside of the rotating shaft (213), and a pawl (232) rotatably connected to the outside of the box body (211).

Images