T-shaped wire clamp

Abstract

The invention discloses a T-shaped wire clamp, and relates to the technical field of wire clamps. A traditional wire clamp is discontinuously subjected to instantaneous pulling force, so that a connecting part is loosened, the wire clamp is not stably connected with a branch wire, and the wire clamp falls off; the wire clamp comprises a first clamp body, a second clamp body and a fixing assembly used for mutual connection among the first clamp body, the second clamp body and a circuit, the fixing assembly comprises a clamping block movably connected to the interior of the first clamp body, and a second fixing bolt is connected to the middle of the clamping block in a threaded penetrating mode; a buffer unloading assembly used for preventing the branch line from loosening is arranged in the first clamp body, the buffer unloading assembly comprises a limiting groove formed in the upper portion of the first clamp body, and a sliding groove is formed in the lower portion of the first clamp body; according to the technical scheme, the loosening probability between the branch line and the fixing point is reduced, the connection stability of the branch line is guaranteed, and the branch line is locked through the locking assembly before the bending part of the branch line is completely straightened, so that the falling probability between the branch line and the line clamp is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wire clamps, and in particular to a T-shaped wire clamp. Background Art

[0002] A T-type wire clamp is a hardware device that connects a conductor to a branch line to transmit electrical loads and withstand certain mechanical loads. After the conductor and branch line are placed inside the clamp and connected, they are fixed with bolts. During actual use, since the branch line and the conductor are connected to different power systems respectively, and the branch line is always vertically downward, the branch line will be subjected to the downward force caused by its own gravity. At the same time, the wind damage will cause forces in different directions between the branch line and the conductor, resulting in the branch line and the conductor being pulled away from each other. Moreover, since the wind damage is uncontrollable, during the pulling process, the branch line and the conductor are not always subjected to stable tension, but will be intermittently pulled instantaneously, which can easily cause the connection to become loose, reducing the stability of the wire clamp connection. Summary of the Invention

[0003] The purpose of the present invention is to propose a T-shaped wire clamp to solve the problem that the connection between the traditional wire clamp and the branch line becomes loose due to intermittent instantaneous pulling force, resulting in an unstable connection and falling off.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A T-shaped wire clamp comprises a first clamp body, a second clamp body, and a fixing assembly for connecting the first clamp body, the second clamp body, and the wire, wherein the fixing assembly comprises a clamping block movably connected to the interior of the first clamp body, and a second fixing bolt is threadedly connected through the middle portion of the clamping block; A buffer unloading assembly is provided inside the first clamp body for preventing the branch line from loosening. The buffer unloading assembly includes a limiting groove opened on the upper part of the first clamp body, a sliding groove is opened on the lower part of the first clamp body, and the two clamping blocks are respectively arranged inside the limiting groove and the sliding groove. A shrinkage groove is opened on the right side of the middle part of the first clamp body, and a top column is slidably connected to the inside of the shrinkage groove. A telescopic spring is fixedly connected between the top column and the shrinkage groove. A locking assembly is provided at the bottom of the first clamp body for preventing the branch line from falling off.

[0005] As a further description of the above technical solution: An accommodating cavity is provided on the left side of the middle portion of the first clamping body, and the upper and lower openings of the accommodating cavity are chamfered.

[0006] As a further description of the above technical solution: The locking assembly includes a first blocking block fixedly connected to the bottom end of the first clamp body, and a locking head is movably connected to the interior of the first clamp body above the first blocking block. The locking head is composed of a connecting sleeve and a locking ring, and there are multiple locking rings, and the multiple locking rings gradually increase in size from top to bottom, and the connecting sleeve is fixedly sleeved on the outside of the multiple locking rings.

[0007] As a further description of the above technical solution: The inner diameter of the locking ring is wide at the top and narrow at the bottom. The outer diameter of the locking ring at the adjacent upper end matches the maximum inner diameter of the locking ring at the lower end. The connecting sleeve and the locking ring are both made of rubber.

[0008] As a further description of the above technical solution: The locking assembly includes a second blocking block fixedly connected to the bottom of the first clamp body, movable grooves are provided on both sides of the interior of the first clamp body, a first fixed plate is fixedly connected to the interior of the movable groove, a movable plate is provided on the side close to the first fixed plate, a second fixed plate is provided on the end close to the movable plate, a clamp is fixedly connected to the end close to the second fixed plate, and a rebound rotating shaft is movably connected between the movable plate and the first fixed plate and the second fixed plate.

[0009] As a further description of the above technical solution: The rebound force of the rebound shaft is greater than the gravity of the clip, the inner side of the clip is provided with anti-slip grooves, and the clip is in the shape of an arc sheet.

[0010] As a further description of the above technical solution: The locking assembly includes a third blocking block fixedly connected to the bottom of the first clamp, and the bottom of the third blocking block is fixedly connected to a locking sleeve. The locking sleeve is composed of an elastic ring and a braided tube, and there are two elastic rings which are respectively fixedly connected to the upper and lower ends of the braided tube. The braided tube is woven from multiple braided belts.

[0011] As a further description of the above technical solution: The fixing assembly further includes connecting seats fixedly connected to both sides and the top of the first clamp body and the second clamp body, and a first fixing bolt is threadedly connected between the corresponding connecting seats on the first clamp body and the second clamp body.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: When the branch line is subjected to force and part of its area extends outside the wire clamp, its lower end fixed point is used to move downward along the inside of the slide groove, and the originally bent area is pulled to straighten. In this process, the upper and lower end fixed points of the branch line are less affected. In this way, when the branch line generates continuous and intermittent pulling force, it plays a force unloading buffer role, reduces the probability of loosening between the branch line and the fixed point, and thus ensures the stability of the branch line connection. In order to prevent the bent part of the branch line from being continuously subjected to pulling force after being straightened, the branch line is locked by the locking assembly at this time to reduce the probability of the branch line falling off from the wire clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the local structure of the fixing component of the present invention.

[0015] Figure 3 It is a schematic diagram of the partial structure of the buffer unloading component of the present invention.

[0016] Figure 4 It is a structural schematic diagram of the locking assembly of the first embodiment of the present invention.

[0017] Figure 5 1 is a schematic cross-sectional view of the locking head according to the first embodiment of the present invention.

[0018] Figure 6 It is a schematic structural diagram of a locking assembly provided in the second embodiment of the present invention.

[0019] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0020] Figure 8 2 is a schematic structural diagram of a locking assembly according to a third embodiment of the present invention.

[0021] Figure 9 This is a diagram showing the changes in the locking sleeve according to the third embodiment of the present invention.

[0022] Legend: 10. First clamp; 20. Second clamp; 30. Fixing assembly; 31. Connecting seat; 32. First fixing bolt; 33. Clamping block; 34. Second fixing bolt; 40. Buffer unloading assembly; 41. Limiting groove; 42. Slide groove; 43. Retraction groove; 44. Top column; 45. Telescopic spring; 46. Accommodating chamber; 50. Locking assembly; 51a. First blocking block; 52a. Locking head; 53a. Connecting sleeve; 54a. Locking ring; 51b. Second blocking block; 52b. Movable groove; 53b. First fixing plate; 54b. Movable plate; 55b. Second fixing plate; 56b. Rebound shaft; 57b. Clip; 58b. Anti-slip groove; 51c. Third blocking block; 52c. Locking sleeve; 53c. Elastic ring; 54c. Braiding tube. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] like Figure 1-Figure 3 As shown, the present invention provides a T-shaped wire clamp: comprising a first clamp body 10, a second clamp body 20, and a fixing assembly 30 for interconnecting the first clamp body 10, the second clamp body 20, and the line. The fixing assembly 30 includes a clamping block 33 movably connected to the interior of the first clamp body 10, and a second fixing bolt 34 is threadedly connected through the middle portion of the clamping block 33. The fixing assembly 30 also includes connecting seats 31 fixedly connected to the sides and top of the first clamp body 10 and the second clamp body 20. The first fixing bolt 32 is threadedly connected between the corresponding connecting seats 31 on the first clamp body 10 and the second clamp body 20. The interior of the first clamp body 10 is provided with a buffer unloading component 40 for preventing the branch line from loosening. The buffer unloading component 40 includes a limiting groove 41 opened on the upper part of the first clamp body 10, and a slide groove 42 is opened at the lower part of the first clamp body 10. Two clamping blocks 33 are respectively arranged inside the limiting groove 41 and the slide groove 42. A contraction groove 43 is opened on the right side of the middle part of the first clamp body 10, and the interior of the contraction groove 43 is slidably connected with a top column 44, and a telescopic spring 45 is fixedly connected between the top column 44 and the contraction groove 43. A accommodating cavity 46 is opened on the left side of the middle part of the first clamp body 10, and the upper and lower openings of the accommodating cavity 46 are chamfered. The bottom of the first clamp body 10 is provided with a locking component 50 for preventing the branch line from falling off.

[0025] Specifically, first place the area where the wire needs to branch in the clamping groove of the horizontal part of the first clamping body 10, then pass the branch line through the clamping groove of the vertical part of the first clamping body 10, and ensure that the branch line is in contact with the wire, then screw the second fixing bolt 34 at the upper end to make it move along the middle of the clamping block 33 toward the branch line, and finally squeeze and fix the branch line, then press the top column 44 to shrink it to the inside of the shrinkage groove 43, and arrange the branch line to be parallel to the top column 44, then release the pressure on the top column 44, and push the partial area of ​​the branch line to bend into the accommodating cavity 46 under the action of the elastic reset of the telescopic spring 45, and then fix the lower part of the bent part of the branch line through the second fixing bolt 34 at the lower end, finally align the first clamping body 10 and the second clamping body 20 and merge them, and pass the first fixing bolt 32 through the corresponding connecting seat 31 on the first clamping body 10 and the second clamping body 20 to fix the first clamping body 10 and the second clamping body 20, and use the second clamping body 20 to shield and protect the wires and branch lines connected inside the first clamping body 10; On this basis, when the conductor and the branch line shake with each other due to factors such as wind damage and the branch line is subjected to pulling force, since the fixed point at the lower end of the branch line is inside the slide groove 42, when the branch line is subjected to force, part of its area will extend out of the wire clamp, and at this time, its lower end fixed point moves downward along the slide groove 42 and pulls the originally bent area to straighten. In this process, the upper and lower fixed points of the branch line are less affected. In this way, when the branch line generates continuous and intermittent pulling force, it plays a role of force unloading and buffering, reduces the probability of loosening between the branch line and the fixed point, and thus ensures the stability of the branch line connection. In order to prevent the bent part of the branch line from being continuously subjected to pulling force after being straightened, the branch line is tightened by the locking component 50. The branch line is locked to reduce the probability of falling off between the branch line and the wire clamp. If the branch line is not completely straightened after being subjected to the pulling force, the pulling force disappears. At this time, the branch line is pushed to bend again into the accommodating cavity 46 under the elastic reset action of the telescopic spring 45, and the lower end fixed point is pulled up and reset along the inside of the slide groove 42 to cope with the next pulling caused by factors such as wind damage. It should be noted that the elastic force of the telescopic spring 45 needs to be greater than the gravity of the branch line so that it can push the branch line from a vertical state to a bent state. In addition, since the upper and lower openings of the accommodating cavity 46 are chamfered, the wear of the branch line can be reduced in the process of the branch line being straightened from a bent state or pushed to bend from a vertical state.

[0026] First embodiment like Figure 4 and Figure 5As shown, the locking assembly 50 includes a first blocking block 51a fixedly connected to the bottom end of the first clamp body 10. A locking head 52a is movably connected to the interior of the first clamp body 10 above the first blocking block 51a. The locking head 52a is composed of a connecting sleeve 53a and a locking ring 54a. There are multiple locking rings 54a, and the multiple locking rings 54a gradually increase in size from top to bottom. The connecting sleeve 53a is fixedly sleeved on the outside of the multiple locking rings 54a. The inner diameter of the locking ring 54a is wide at the top and narrow at the bottom. The outer diameter of the adjacent upper locking ring 54a matches the maximum inner diameter of the lower locking ring 54a. The connecting sleeve 53a and the locking ring 54a are both made of rubber.

[0027] Specifically, when the branch line is passed through the first clamp body 10, the branch line is first passed through the first blocking block 51a and the locking head 52a, and then the locking ring 54a in the locking head 52a is tightly wrapped around the outside of the branch line under the elastic properties of the rubber. When the branch line is displaced toward the outside of the wire clamp by the pulling force, the friction force generated by the locking ring 54a wrapping the branch line will pull the locking ring 54a to move synchronously. At this time, due to the restriction of the first blocking block 51a, the branch line is in the most The locking ring 54a at the lower end cannot move. Since the locking rings 54a gradually increase in size from top to bottom and their inner diameters are wide at the top and narrow at the bottom, the outer diameters of the adjacent upper locking rings 54a match the maximum inner diameter of the lower locking ring 54a. As a result, the locking ring 54a at the upper end is pulled to move inside the locking ring 54a at the lower end during the movement of the branch line. As the upper locking ring 54a moves, the lower locking ring 54a continuously applies pressure to the upper locking ring 54a. Finally, multiple locking rings 54a form a multi-layer wrapping of the branch line from the outside to the inside, and through layer-by-layer extrusion, the locking ring 54a located on the innermost side tightly squeezes the branch line, and the locking ring 54a located on the outermost side tightly squeezes the inner wall of the wire clamp, so that the more the branch line is pulled, the stronger the fixation between the branch line and the wire clamp is. Therefore, before the bent part of the branch line is completely straightened, the locking between the branch line and the wire clamp is completed, avoiding the failure of the buffer unloading component 40, and forming a third point fixation under the original two-point fixation, using the third point fixation to reduce the influence of the original two-point fixation, ensuring the stable connection and transmission between the branch line and the conductor, while reducing the probability of the branch line and the wire clamp falling off, further The stability of the connection between the branch line and the wire clamp is ensured. Since the locking ring 54a is made of rubber material, when fixing the branch line with an outer foreskin, it can increase the fit with the branch line through tension, thereby improving the fixing effect of the branch line. At the same time, when fixing the branch line with the outer foreskin removed, the locking ring 54a will be deformed after being squeezed, and the contact surface of the deformed locking ring 54a and the branch line will be embedded in the gap between multiple lines of the branch line, thereby also being able to improve the fixing effect of the branch line with the outer foreskin removed. Therefore, when the locking point is at the junction of the branch line with the outer foreskin removed and the branch line with the outer foreskin, this method can better achieve the locking and fixation of the branch line.

[0028] Second embodiment like Figure 6 and Figure 7As shown, the locking assembly 50 includes a second blocking block 51b fixedly connected to the bottom of the first clamp body 10, and movable grooves 52b are provided on both sides of the interior of the first clamp body 10. The interior of the movable groove 52b is fixedly connected to a first fixed piece 53b, and a movable piece 54b is provided on the side close to the first fixed piece 53b. A second fixed piece 55b is provided on the end close to the movable piece 54b, and a clip 57b is fixedly connected on the end close to the second fixed piece 55b. A rebound shaft 56b is movably connected between the movable piece 54b and the first fixed piece 53b and the second fixed piece 55b; the rebound force of the rebound shaft 56b is greater than the gravity of the clip 57b, the inner side of the clip 57b is provided with an anti-slip groove 58b, and the clip 57b is an arc-shaped sheet.

[0029] Specifically, when the branch line is passed through the first clamp body 10, the branch line is first passed through the second blocking block 51b and the plurality of clips 57b. During the process of the branch line passing through, the clip 57b is pushed upward, so that the clip 57b rotates along the turning point formed between the second fixed piece 55b and the movable piece 54b, and the movable piece 54b also rotates inside the movable groove 52 through the turning point formed by it and the first fixed piece 53b, so that the angle between the movable piece 54b and the clip 57b is reduced, which makes it easier for the branch line to pass through the plurality of clips 57b. After the branch line is fixed, the movable piece 54b and the first fixed piece 55b are connected. A rebound shaft 56b is movably connected between 3b and the second fixed piece 55b, and the rebound force of the rebound shaft 56b is greater than the gravity of the clip 57b, so that the multiple clips 57b clamp the branch line from the outside. When the branch line is displaced toward the outside of the wire clamp by the pulling force, the anti-slip groove 58b on the contact surface of the clip 57b and the branch line is used to increase the friction between the clip 57b and the branch line, and cooperate with the clamping force applied by the original rebound shaft 56b to the clip 57b, so that the clip 57b and the branch line move downward synchronously. At this time, the movable piece 54b is connected to the first fixed piece 53b and the second fixed piece 55b through its connection with the first fixed piece 53b and the second fixed piece 55b. 5b is rotated, so that the angle between the movable piece 54b and the clamping piece 57b is continuously increased, so that the movable piece 54b pushes the clamping piece 57b to increase the clamping force of the clamping piece 57b, so that the more the branch line is pulled, the stronger the fixation between the branch line and the clamp is. Thus, before the bent part of the branch line is completely straightened, the locking between the branch line and the clamp is completed, avoiding the failure of the buffer unloading component 40, and forming a third point fixation under the original two-point fixation, using the third point fixation to reduce the influence of the original two-point fixation, ensuring the stable connection and transmission between the branch line and the conductor. When the branch line is clamped, the probability of falling off between the branch line and the wire clamp is reduced, and the stability of the connection between the branch line and the wire clamp is further guaranteed. This method has a better fixing effect on the branch line after the outer foreskin is removed. During mechanical clamping, the anti-slip pattern 58b can easily cause damage to the outer foreskin, and the surface of the outer foreskin is smooth, and the friction with the clip 57b is small. For the branch line with the foreskin removed, since the branch line is composed of multiple lines, there are gaps between each line. Therefore, the anti-slip pattern 58b can be embedded in the gap, thereby increasing the friction between the clip 57b and the branch line and improving the fixing effect of the branch line.

[0030] Third embodiment like Figure 8 and Figure 9 As shown, the locking assembly 50 includes a third blocking block 51c fixedly connected to the bottom of the first clamp body 10, and the bottom of the third blocking block 51c is fixedly connected to a locking sleeve 52c, the locking sleeve 52c is composed of an elastic ring 53c and a braiding tube 54c, and the number of the elastic rings 53c is two and they are respectively fixedly connected to the upper and lower ends of the braiding tube 54c, and the braiding tube 54c is woven by multiple braids.

[0031] Specifically, when the branch line is passed through the first clamp body 10, the branch line is first passed through the third blocking block 51c and the locking sleeve 52c. Under initial conditions, the locking sleeve 52 is in a flat and thick state, and the elastic rings 53c at the upper and lower ends of the locking sleeve 52c are sleeved on the outside of the branch line and elastically wrap the branch line. When the branch line is displaced by the pulling force, the upper end of the locking sleeve 52c is fixedly connected to the third blocking block 51c and remains stationary. The elastic ring 53c at the lower end of the locking sleeve 52c wraps the branch line and moves synchronously with the branch line, so that the distance between the two elastic rings 53c continues to increase, and the braided tube 54c woven from multiple braids is longitudinally stretched into a slender state. In this process, the fibers of a single braid shrink, thereby increasing the tension and causing multiple braids to tightly wrap the branch line. , so that the more the branch line is pulled, the stronger the fixation between it and the wire clamp is, so that the locking between the branch line and the wire clamp is completed before the bent part of the branch line is completely straightened, avoiding the failure of the buffer unloading component 40, and forming a third point fixation under the original two-point fixation. The third point fixation is used to reduce the influence of the original two-point fixation point, ensuring the stable connection and transmission between the branch line and the conductor, while reducing the probability of falling off between the branch line and the wire clamp, further ensuring the stability of the connection between the branch line and the wire clamp, this method has a better fixation effect for branch lines with outer sheaths, because the surface of the outer sheath of the branch line is smooth, the tension can make the braided tube 54c fit more closely with the outer sheath of the branch line, compared with mechanical clamping fixation, the fixation effect is better, and it is not easy to cause damage to the outer sheath of the branch line.

[0032] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A T-shaped wire clamp, comprising a first clamp body (10), a second clamp body (20), and a fixing assembly (30) for interconnecting the first clamp body (10), the second clamp body (20) and the wire, characterized in that: The fixing assembly (30) comprises a clamping block (33) movably connected to the interior of the first clamping body (10), and a second fixing bolt (34) is threadedly connected through the middle portion of the clamping block (33); A buffer unloading assembly (40) for preventing the branch line from loosening is provided inside the first clamp (10), the buffer unloading assembly (40) includes a limiting groove (41) opened on the upper part of the first clamp (10), a sliding groove (42) is opened on the lower part of the first clamp (10), and the two clamping blocks (33) are respectively arranged inside the limiting groove (41) and the sliding groove (42), a contraction groove (43) is opened on the right side of the middle part of the first clamp (10), and a top column (44) is slidably connected inside the contraction groove (43), and a telescopic spring (45) is fixedly connected between the top column (44) and the contraction groove (43), and a locking assembly (50) for preventing the branch line from falling off is provided at the bottom of the first clamp (10).

2. A T-shaped wire clamp according to claim 1, characterized in that: An accommodating cavity (46) is provided on the left side of the middle portion of the first clamping body (10), and the upper and lower openings of the accommodating cavity (46) are chamfered.

3. A T-shaped wire clamp according to claim 1, characterized in that: The locking assembly (50) includes a first blocking block (51a) fixedly connected to the bottom end of the first clamp (10), and a locking head (52a) is movably connected to the interior of the first clamp (10) above the first blocking block (51a). The locking head (52a) is composed of a connecting sleeve (53a) and a locking ring (54a), and the number of the locking rings (54a) is multiple, and the multiple locking rings (54a) gradually increase from top to bottom. The connecting sleeve (53a) is fixedly sleeved on the outside of the multiple locking rings (54a).

4. A T-shaped wire clamp according to claim 3, characterized in that: The inner diameter of the locking ring (54a) is wide at the top and narrow at the bottom, the outer diameter of the adjacent upper locking ring (54a) matches the maximum inner diameter of the lower locking ring (54a), and the connecting sleeve (53a) and the locking ring (54a) are both made of rubber.

5. The T-shaped wire clamp according to claim 1, characterized in that: The locking assembly (50) includes a second blocking block (51b) fixedly connected to the bottom of the first clamp (10), movable grooves (52b) are provided on both sides of the interior of the first clamp (10), a first fixed plate (53b) is fixedly connected to the interior of the movable groove (52b), a movable plate (54b) is provided on the side close to the first fixed plate (53b), a second fixed plate (55b) is provided on the end close to the movable plate (54b), a clamp (57b) is fixedly connected to the end close to the second fixed plate (55b), and a rebound shaft (56b) is movably connected between the movable plate (54b), the first fixed plate (53b) and the second fixed plate (55b).

6. A T-shaped wire clamp according to claim 5, characterized in that: The rebound force of the rebound shaft (56b) is greater than the gravity of the clip (57b), the inner side of the clip (57b) is provided with anti-slip grooves (58b), and the clip (57b) is in the shape of an arc-shaped sheet.

7. The T-shaped wire clamp according to claim 1, characterized in that: The locking assembly (50) comprises a third blocking block (51c) fixedly connected to the bottom of the first clamp (10), and a locking sleeve (52c) is fixedly connected to the bottom of the third blocking block (51c), the locking sleeve (52c) being composed of an elastic ring (53c) and a braided tube (54c), and the number of the elastic rings (53c) is two and they are respectively fixedly connected to the upper and lower ends of the braided tube (54c), and the braided tube (54c) is woven from a plurality of braided belts.

8. The T-shaped wire clamp according to claim 1, characterized in that: The fixing assembly (30) further comprises a connecting seat (31) fixedly connected to both sides and the top of the first clamp body (10) and the second clamp body (20), and a first fixing bolt (32) is threadedly connected between the corresponding connecting seats (31) on the first clamp body (10) and the second clamp body (20).

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