CN222381243U - Novel weak current bridge structure - Google Patents

Abstract

The utility model discloses a novel weak-current bridge structure, which belongs to the weak-current technical field, including a bridge A, a mounting slot A, a mounting frame, a bridge B, a mounting slot B and a conductor frame, wherein a bridge B is arranged above the bridge A, mounting frames are fixedly installed on the sides of the bridge B and above the bridge A, mounting slot A is embedded on the other side of the bridge B and below the bridge A, mounting slot B is embedded in the middle of the lower part of the bridge B, and the mounting frames are all fitted and slidably arranged inside the mounting slot A and the mounting slot B. In the utility model, two limit frames are pushed to slide inside the slide slot, and the limit pressing plate is squeezed to drive the damping telescopic rod A and the outer spring to contract, so that the limit card block slides out of the limit card slot to release the bridge A or the bridge B, and then the bridge A or the bridge B is pushed to drive the mounting slot A or the mounting slot B to be removed from the outer side of the mounting frame, and the disassembly is completed, and the correct bridge A or the bridge B is installed to support the weak-current wires, so that the staff can quickly disassemble and assemble the weak-current bridge.

Description

Novel weak current bridge structure

Technical Field

The utility model belongs to the technical field of weak current, and particularly relates to a novel weak current bridge structure.

Background

The weak current mainly refers to direct current circuits, audio frequency, video frequency circuits, network circuits, telephone circuits and the like, the voltage of the circuits is generally within 36V, and the weak current is mainly characterized in that the processing object is mainly information transmission and control, and the weak current has the characteristics of low voltage, low current, low power, high frequency and the like.

The utility model provides a weak electric wire body, wherein, through retrieving discovery, application number is CN202222017878.9, a strong and weak electric bridge frame, this kind of strong and weak electric bridge frame has the setting through the rigidity baffle, for can keep apart weak electric wire body and strong electric wire body, through the cooperation use of hand screwing slide bar, draw-in bar and draw-in groove for the laminating that rigidity baffle can be stable is at the top of blend stop two, through the setting of arc knot and press knot, can carry out spacingly to weak electric wire body or strong electric wire body, wherein, the shortcoming is as follows:

When the strong and weak electric bridge frame is used by staff, when strong and weak electric wires are supported, the weak electric wire body and the strong electric wire body are isolated by the rigid partition board, the sliding rod, the clamping strip and the clamping groove are screwed by hands to be matched, so that the rigid partition board is stably attached to the top of the second barrier strip, the arc-shaped buckle and the pressing buckle limit the weak electric wire body or the strong electric wire body, and when the strong and weak electric wires are limited, the arc-shaped buckle for limiting and supporting the strong and weak electric wires by the arc-shaped buckle of the connecting spring is only singly isolated by the rigid partition board, the arc-shaped buckle is easy to vibrate to generate high flexibility by the spring, and the strong and weak electric wires are loose and fall to generate collision damage, so that the cushioning effect of the strong and weak electric bridge frame is relatively poor.

Disclosure of utility model

The utility model aims to solve the problem that the damping effect of the strong and weak bridge frame is relatively poor, and provides a novel weak bridge frame structure.

The novel weak current bridge structure comprises a bridge A, a mounting groove A, a mounting rack, a bridge B, a mounting groove B and a lead frame, wherein the bridge B is arranged above the bridge A, the mounting racks are fixedly arranged on the side of the bridge B and above the bridge A, the mounting groove A is embedded in the other side of the bridge B and below the bridge A, the mounting groove B is embedded in the middle of the lower side of the bridge B, the mounting racks are respectively matched with the inner sides of the mounting groove A and the mounting groove B in a sliding manner, the lead frames are oppositely arranged in front of and behind the two sides of the inside of the bridge B and in front of and behind the inside of the bridge A, adjusting and limiting mechanisms capable of limiting and branching weak current wires of different specifications are arranged on the outer sides of the lead frame, buffering mechanisms capable of buffering the weak current wires from vibration during earthquake are arranged in the bridge B and the bridge A, and clamping and installing mechanisms convenient to assemble and disassemble are arranged on the outer sides of the bridge B and the bridge A.

The clamping installation mechanism comprises a limiting clamping groove, a sliding groove, a limiting frame, limiting clamping blocks, damping telescopic rods A and limiting pressing plates, wherein the sliding grooves are formed in the two sides of the inner wall of the installation groove A and the two sides of the inner wall of the installation groove B, the limiting frames are slidably arranged on the inner sides of the sliding grooves, the limiting clamping blocks are fixedly arranged on the periphery of the sides of the limiting frames, the limiting clamping grooves are formed in a plurality of mode and are arranged in an equidistance encircling mode, the limiting clamping blocks are arranged on the inner sides of the limiting clamping grooves in a matching sliding mode, the damping telescopic rods A are fixedly arranged on the upper portion and the lower portion of the two sides of the inner wall of the installation groove A, springs are arranged on the outer sides of the damping telescopic rods A in a matched mode, and the limiting pressing plates are fixedly arranged on the side portions of the ends of the damping telescopic rods A.

The adjusting and limiting mechanism is composed of a thread groove, an adjusting screw, a thread groove and a rubber pressing pad, the thread groove is embedded in the two sides of the front lead frame in the bridge A and the bridge B, the adjusting screw is arranged on the two sides of the front of the other lead frame in the bridge A and the bridge B in a rotating mode through bearings, the adjusting screw is meshed and rotated to be arranged on the inner side of the thread groove, the thread groove is embedded in the opposite face of the lead frame, the thread grooves are formed in a plurality, every two of the thread grooves are arranged in parallel at equal intervals, the rubber pressing pad is fixedly installed in the thread groove, the rubber pressing pad is arranged in an arc shape, and springs are arranged between the rubber pressing pad and four corners of the opposite face of the thread groove in a matched mode.

The buffer mechanism comprises a damping telescopic rod B, a buffer plate, a buffer block A, a buffer block B, a buffer frame, a buffer block C and a movable rod, wherein the damping telescopic rod B is fixedly installed at four corners of the front of a lead frame, a spring is arranged on the outer side of the damping telescopic rod B in a matched mode, the buffer plate is fixedly installed at the front of the end part of the damping telescopic rod B, the buffer block A is fixedly installed at the front of the buffer plate, the buffer block A is arranged in a semicircular mode, the buffer block B is fixedly installed inside the buffer block A and is arranged in a triangular cone shape, the buffer frame is fixedly installed on the front and rear of the inner wall of the bridge frame A, the buffer frame is fixedly installed on the front and rear of the inner wall of the bridge frame B through sliding blocks, springs are arranged on the two sides of the outer ring of the buffer frame in a matched mode, the springs are arranged between the two sides of the outer ring of the buffer frame and the other end of the corresponding buffer block C in a matched mode, and the movable rod is arranged between the upper side and the lower side of the two sides of the front of the lead frame and the corresponding buffer block C in a rotating mode through a rotating shaft.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. This kind of novel light current crane span structure is through being provided with joint installation mechanism, can make the staff pass through between spacing draw-in groove, spout, spacing fixture block, damping telescopic link A and the spacing clamp plate cooperation, and it is spacing to spacing extrusion of spacing to utilize spacing clamp plate through damping telescopic link A and outside spring, and spacing passes through spacing fixture block freedom in the inboard spacing mode of sliding of spacing draw-in groove, makes things convenient for the staff to the effect of light current crane span structure quick assembly disassembly processing.

2. This kind of novel weak current bridge structure is through being provided with regulation stop gear, can make the staff pass through between screw thread groove, adjusting screw, wire casing and the rubber clamp pad and cooperate, utilizes adjusting screw freely to rotate at the inboard screw thread interlock of screw thread groove, adjusts the interval between the lead frame, makes the rubber clamp pad pass through spring deformation and extrusion contact at the mode on weak current line surface, can make the staff freely carry out spacing effect of supporting the processing to different specification weak current lines.

3. This kind of novel weak bridge structure is through being provided with buffer gear, can make the staff pass through damping telescopic link B, the buffer board, buffer block A, buffer block B, the buffer frame, buffer block C and movable rod between the cooperation, utilize the movable rod to pass through the pivot, drive buffer block C in the buffer frame outside slip, drive spring expansion and buffer frame both sides spring contraction between the buffer block C, make the spring of expansion and contraction produce the thrust back to buffer block C, buffer board tip buffer block A and buffer block B will constantly receive the extrusion, and drive damping telescopic link B and outside spring and stretch out and draw back repeatedly, the vibrations buffering that receives to the lead frame weakens the mode, improve the effect to the high-efficient buffering shock attenuation of lead frame.

Drawings

Fig. 1 is a schematic and simplified schematic diagram of a front perspective structure of a weak bridge of the present utility model;

FIG. 2 is a schematic diagram of a front cross-sectional structure of the weak bridge in the utility model;

Fig. 3 is a schematic diagram showing a lead frame according to the present utility model schematic and schematic drawing of the cross-sectional structure of the surface;

FIG. 4 is a schematic diagram of the enlarged construction of FIG. 2 at A in accordance with the present utility model;

FIG. 5 is a schematic diagram of the enlarged structure of FIG. 3B in accordance with the present utility model;

FIG. 6 is a schematic diagram of a second enlarged construction of the embodiment of FIG. 3B according to the present utility model.

In the figure, the device comprises a bridge A, a mounting groove A, a mounting frame, a 103, a limiting clamping groove, a 104, a sliding groove, a 105, a limiting frame, a 106, a limiting clamping block, a 107, a damping telescopic rod A, a 108, a limiting pressing plate, a 2, a bridge B, a 201, a mounting groove B, a 3, a lead frame, a 301, a damping telescopic rod B, a 302, a buffer plate, a 303, a buffer block A, a 304, a buffer block B, a 305, a thread groove, a 306, an adjusting screw, a 307, a wire groove, a 308, a rubber pressing pad, a 4, a buffer frame, a 401, a buffer block C, a 402 and a movable rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the utility model, the following components are added:

Referring to fig. 1-5, a novel weak current bridge structure comprises a bridge A1, a mounting groove A101, a mounting rack 102, a bridge B2, a mounting groove B201 and a lead frame 3, wherein the bridge B2 is arranged above the bridge A1, the mounting rack 102 is fixedly arranged on the side of the bridge B2 and the upper side of the bridge A1, the mounting groove A101 is embedded in the other side of the bridge B2 and the lower side of the bridge A1, the mounting groove B201 is embedded in the middle of the lower side of the bridge B2, the mounting rack 102 is slidably arranged on the inner sides of the mounting groove A101 and the mounting groove B201, the lead frame 3 is oppositely arranged on the front and back sides of the inner sides of the bridge B2 and the front and back sides of the bridge A1, an adjusting and limiting mechanism capable of limiting and branching weak current wires of different specifications is arranged on the outer sides of the lead frame 3, a buffering mechanism capable of buffering vibration of weak current wires in earthquake is arranged on the inner sides of the bridge B2 and the bridge A1, and a clamping and mounting mechanism convenient to assemble and disassemble is arranged on the outer sides of the bridge A1.

Referring to fig. 1 to 4, further, the clamping installation mechanism is composed of a limiting clamping groove 103, a sliding groove 104, a limiting frame 105, a limiting clamping block 106, a damping telescopic rod a107 and a limiting pressing plate 108;

The two sides of the inner walls of the installation groove A101 and the installation groove B201 are respectively embedded with a chute 104, the side of the inside of the chute 104 is provided with a limiting frame 105 in a sliding way, limiting clamping blocks 106 are fixedly arranged around the side of the limiting frame 105, two sides of the installation frame 102 are respectively embedded with a limiting clamping groove 103, a plurality of limiting clamping grooves 103 are arranged in an equidistant surrounding way, the limiting clamping blocks 106 are arranged on the inner sides of the limiting clamping grooves 103 in a fit sliding way, damping telescopic rods A107 are fixedly arranged on the upper and lower sides of the two sides of the inner walls of the installation groove A101 and the installation groove B201 near the upper and lower sides of the limiting frame 105, springs are arranged on the outer sides of the damping telescopic rods A107 in a matching way, limiting pressing plates 108 are fixedly arranged on the side of the end parts of the damping telescopic rods A107, when a worker needs to install and support a bridge frame A1 and a bridge frame B2 for weak wires, after carrying a specified number of bridge frames A1 and B2 to an installation site, one bridge frame A1 is arranged above the other bridge frame A1, pushing two limiting frames 105 to slide inside the sliding groove 104, extruding a limiting pressing plate 108 to drive a damping telescopic rod A107 and an outer spring to shrink, enabling the mounting frame 102 to slide inside the mounting groove A101, simultaneously rotating and loosening the limiting frames 105, enabling the damping telescopic rod A107 and the outer spring to pop up the limiting frames 105 to drive a limiting clamping block 106 to slide inside the opposite limiting clamping groove 103, completing splicing between two bridge frames A1, simultaneously enabling weak wires to pass through between the lead frames 3, installing the bridge frames A1 spliced by the bridge frames A1 on a wall surface through bolts, installing other bridge frames A1 and arranging the weak wires inside by staff, if the bridge frames B2 need to be installed, enabling the weak wires to be subjected to corner treatment, enabling the mounting groove B201 below one bridge frame B2 to slide above the mounting frame 102 in the same manner, completing corner installation between the bridge frames A1 and B2, if a worker needs to dismantle when installing one of the bridge frames B2 or the bridge frame A1, the two limiting frames 105 are pushed to slide on the inner side of the sliding groove 104, the limiting pressing plate 108 is extruded to drive the damping telescopic rod A107 and the outer side spring to shrink, after the limiting clamping block 106 slides out of the limiting clamping groove 103 to loosen the bridge frame A1 or the bridge frame B2, the bridge frame A1 or the bridge frame B2 is pushed to drive the mounting groove A101 or the mounting groove B201 to be taken down from the outer side of the mounting frame 102, the disassembly is completed, and the correct bridge frame A1 or the bridge frame B2 is installed to support the weak electric wires, so that the effect of quick disassembly and assembly of the weak electric bridge frames by the worker is facilitated.

Referring to fig. 2 and 3, further, the adjusting and limiting mechanism is composed of a thread groove 305, an adjusting screw 306, a thread groove 307 and a rubber pressing pad 308;

The front two sides of the lead frame 3 in front of the bridge frame A1 and the bridge frame B2 are embedded with the threaded grooves 305, the front two sides of the other lead frame 3 in back of the bridge frame A1 and the bridge frame B2 are respectively provided with the adjusting screw 306 through bearing rotation, the adjusting screw 306 is arranged on the inner side of the threaded grooves 305 in a threaded engagement manner, the corresponding surfaces of the lead frame 3 are embedded with the threaded grooves 307, the plurality of the threaded grooves 307 are arranged in parallel at equal intervals, the rubber press pads 308 are fixedly arranged in the corresponding grooves 307, the rubber press pads 308 are arranged in an arc shape, springs are arranged between the four corners of the corresponding surfaces of the rubber press pads 308 and the corresponding surfaces of the threaded grooves 307, when a worker firstly installs two of the bridge frame A1 or the bridge frame B2 and the bridge frame A1, and the weak electric wires are required to be arranged in the bridge frame A1 through bearing rotation, and the worker simultaneously twists the two adjusting screws on the inner sides of the threaded grooves 307 between the corresponding lead frames 3, the two lead frames 3 are driven to shrink in opposite directions, the rubber press pads 308 shrink in opposite directions, the rubber press pads 308 through the springs, the weak wires are enabled to be supported between the weak wires, and the weak wires are supported between the two adjacent to be limited by the bridge frames, and the weak wires are limited by the weak wires, and the weak wires are supported by the weak wires, and the weak-limit workers can be supported by the bridge frame A and the bridge frame B2 in a free mode, and the mode can limit the weak-limit the situation is achieved, and the weak-limit mode is also can be limited by the situation, and the weak-limit mode, and the weak electric wires can be supported by the weak bridge frame and the limit the bridge frame.

Referring to fig. 3 and 5, the buffer mechanism is further composed of a damping telescopic rod B301, a buffer plate 302, a buffer block a303, a buffer block B304, a buffer frame 4, a buffer block C401 and a movable rod 402;

Damping telescopic rods B301 are fixedly arranged at four corners in front of a lead frame 3, springs are arranged on the outer sides of the damping telescopic rods B301 in a matched mode, buffer plates 302 are fixedly arranged in front of end portions of the damping telescopic rods B301, buffer blocks A303 are fixedly arranged in front of the buffer plates 302, the buffer blocks A303 are arranged in a semicircular mode, buffer blocks B304 are fixedly arranged in the buffer blocks A303, the buffer blocks B304 are arranged in a triangular cone shape, buffer frames 4 are fixedly arranged on the upper and lower sides of the front and rear of the inner wall of the bridge frame A1 and the front and rear sides of the inner wall of the bridge frame B2, buffer blocks C401 are arranged on the two sides of the outer ring of the buffer frames 4 in a sliding mode through sliding blocks, springs are arranged between the two sides of the outer ring of the buffer frames 4 and the other ends of the corresponding buffer blocks C401 in a matched mode, movable rods 402 are arranged between the upper and lower sides of the front of the lead frame 3 and the corresponding buffer blocks C401 in a rotating mode through rotating shafts, when the staff finishes the installation of the weak bridge and supports the weak current for a long time, if the outside generates an earthquake, when the lead frame 3 vibrates, the lead frame 3 repeatedly pushes the movable rod 402 through the rotating shaft to drive the buffer blocks C401 to slide outside the buffer frames 4, springs between the buffer blocks C401 are driven to expand and the springs at two sides of the buffer frames 4 to contract, the expanded and contracted springs generate a thrust force to the buffer blocks C401, the end buffer blocks A303 and B304 of the buffer plate 302 are continuously extruded when the vibration buffer received by the lead frame 3 is weakened, the damping telescopic rod B301 and the springs at the outer side are driven to repeatedly stretch, secondary vibration and buffer treatment is carried out on the lead frame 3, the weak current is prevented from being collided with the inside of the bridge frame A1 and the bridge frame B2, the outer skin of the weak current is damaged, and the effect of high-efficiency buffer and vibration and buffer treatment on the lead frame 3 is improved.

Examples

As shown in fig. 5 and 6, in the present utility model, in addition to the embodiment in which the buffer block a303 is fixedly mounted in front of the buffer plate 302 and the buffer block a303 is arranged in a semicircular shape, the buffer block B304 is fixedly mounted in the buffer block a303 and the buffer block B304 is arranged in a triangular cone shape, another embodiment is also available, in which the buffer block a303 is fixedly mounted in front of the buffer plate 302 and the buffer block a303 is arranged in a semicircular shape, the buffer block B304 is fixedly mounted in the buffer block a303 and the buffer block B304 is arranged in a semicircular shape, and when the buffer block a303 and the buffer block B304 at the end of the buffer plate 302 are continuously pressed and the damping telescopic rod B301 and the outer spring are driven to repeatedly expand and contract, the semicircular buffer block B304 and the buffer block a303 can disperse the received pressure to the surrounding, so that the pressure concentration is avoided, and the lead frame 3 is more efficiently buffered and damped compared with the first embodiment, the buffering effect is better.

The working principle is that firstly, when a worker needs to install a bridge A1 and a bridge B2 for supporting weak wires, after carrying a specified number of bridges A1 and bridges B2 to an installation site, placing one bridge A1 above the other bridge A1, pushing two limiting frames 105 to slide in opposite directions, extruding a limiting pressing plate 108 to drive a damping telescopic rod A107 and an outer spring to shrink, enabling a mounting frame 102 to slide into the inner side of an installation groove A101, simultaneously rotating and loosening the limiting frames 105, enabling the damping telescopic rod A107 and the outer spring to pop out the limiting frames 105 to drive a limiting clamping block 106 to slide into the inner side of an opposite limiting clamping groove 103, completing splicing between the two bridges A1, simultaneously screwing two adjusting screws 306 to rotate at the inner side of a thread groove 305, driving the two lead frames 3 to shrink in opposite directions, enabling a rubber pressing pad 308 to shrink and press and contact the weak wires, limiting the weak wires to the inner side of the thread groove 307, completing limiting support for the weak wires, splicing after the bridge A1, installing the weak wires A1 to the same way as the other bridge A1 is installed, installing the bridge B2 to the bridge B2 or installing the bridge B2 in a mode of the same way, if the bridge A1 is required to be installed, and the bridge B2 is installed on the inner side of the bridge B2 is required to be installed, and if the bridge A1 is required to be installed, and the bridge B is installed in the position of the bridge is required to be installed, and the position of the bridge B2 is required to be installed on the inner side of the bridge B2, after the limiting clamping blocks 106 slide out of the limiting clamping grooves 103 to loosen the bridge A1 or the bridge B2, the bridge A1 or the bridge B2 is pushed to drive the mounting groove A101 or the mounting groove B201 to be taken down from the outer side of the mounting frame 102, disassembly is completed, the correct bridge A1 or the bridge B2 is mounted for supporting weak wires, finally, when the weak electric bridge is mounted for long-term supporting use, if an earthquake occurs outside, when the lead frame 3 vibrates, the lead frame 3 repeatedly pushes the movable rod 402 through the rotating shaft to drive the buffer block C401 to slide outside the buffer frame 4, springs between the buffer blocks C401 are unfolded and the springs on two sides of the buffer frame 4 are contracted, so that the unfolded and contracted springs generate inverse thrust to the buffer block C401, the end buffer block A303 and the buffer block B304 are continuously extruded while the vibration buffer received by the lead frame 3 is weakened, and the damping telescopic rod B301 and the outer side springs are driven to repeatedly stretch, and the lead frame 3 is subjected to secondary damping and buffer treatment, and the damage to the weak electric wires and the internal and the external shock skin caused by the vibration of the bridge frame 1 and the bridge B2 is avoided.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (7)

1. The utility model provides a novel weak current bridge structure, includes bridge A (1), mounting groove A (101), mounting bracket (102), bridge B (2), mounting groove B (201) and lead frame (3), bridge A (1) top is provided with bridge B (2), bridge B (2) side and bridge A (1) top all fixed mounting have mounting bracket (102), bridge B (2) opposite side and bridge A (1) below all imbeds and are provided with mounting groove A (101), bridge B (2) below middle part embedding is provided with mounting groove B (201), and mounting bracket (102) all agree with the slip setting in mounting groove A (101) and mounting groove B (201) inboard, bridge B (2) inside both sides the front and back and bridge A (1) inside front and back are provided with lead frame (3) relatively, its characterized in that bridge B (2) and A (1) inside are provided with the regulation stop gear that can be handled to different specification cable limit, bridge B (2) and A (1) inside are provided with can be used for buffering cable buffer mechanism when the bridge B (1) receives shock absorber and shock absorber mechanism (1) outside the bridge is installed conveniently.

2. The novel weak bridge structure of claim 1, wherein the clamping installation mechanism comprises a limiting clamping groove (103), a sliding groove (104), a limiting frame (105), a limiting clamping block (106), a damping telescopic rod A (107) and a limiting pressing plate (108);

The novel damping telescopic rod is characterized in that sliding grooves (104) are formed in two sides of the inner wall of each of the installation groove A (101) and the installation groove B (201), a limiting frame (105) is arranged on the inner side of each sliding groove (104) in a sliding mode, limiting clamping blocks (106) are fixedly arranged on the periphery of the side of each limiting frame (105), limiting clamping grooves (103) are formed in two sides of each installation frame (102) in an embedded mode, the limiting clamping blocks (106) are arranged on the inner side of each limiting clamping groove (103) in a sliding fit mode, damping telescopic rods A (107) are fixedly arranged on the upper portion and the lower portion of each of the two sides of the inner wall of each installation groove A (101) and the corresponding upper portion and the lower portion of each installation groove B (201) close to each limiting frame (105), springs are arranged on the outer side of each damping telescopic rod A (107), and limiting pressing plates (108) are fixedly arranged on the end portions of each damping telescopic rod A (107).

3. The novel weak bridge structure of claim 1, wherein the adjusting and limiting mechanism comprises a thread groove (305), an adjusting screw (306), a wire groove (307) and a rubber pressing pad (308);

The novel wire frame is characterized in that screw grooves (305) are embedded in the front two sides of the front wire frame (3) inside the bridge frame A (1) and the bridge frame B (2), adjusting screws (306) are respectively arranged on the front two sides of the other wire frame (3) inside the bridge frame A (1) and the bridge frame B (2) in a rotating mode through bearings, the adjusting screws (306) are arranged on the inner sides of the screw grooves (305) in a threaded engagement rotation mode, wire grooves (307) are embedded in the opposite faces of the wire frames (3), rubber press pads (308) are fixedly installed inside the wire grooves (307), and springs are arranged between the four corners of the opposite faces of the rubber press pads (308) and the wire grooves (307) in a matched mode.

4. The novel weak bridge structure of claim 1, wherein the buffer mechanism comprises a damping telescopic rod B (301), a buffer plate (302), a buffer block A (303), a buffer block B (304), a buffer frame (4), a buffer block C (401) and a movable rod (402);

The novel damping telescopic device is characterized in that damping telescopic rods B (301) are fixedly installed at four corners in front of a lead frame (3), springs are arranged on the outer sides of the damping telescopic rods B (301) in a matched mode, buffer plates (302) are fixedly installed in front of the end portions of the damping telescopic rods B (301), buffer blocks A (303) are fixedly installed in front of the buffer plates (302), buffer blocks B (304) are fixedly installed in the buffer blocks A (303), buffer frames (4) are fixedly installed on the upper side and the lower side of the front and the back of the inner wall of the lead frame A (1) and on the front and back of the inner wall of the bridge frame B (2), buffer blocks C (401) are arranged on the two sides of the outer ring of the buffer frames (4) in a sliding mode through sliding mode, springs are arranged between the two sides of the outer ring of the buffer frames (4) and the other ends of the corresponding buffer blocks C (401), and movable rods (402) are arranged between the upper side and the lower side of the two sides of the lead frame (3) and the corresponding buffer blocks C (401) in a rotating mode through rotating mode.

5. The novel weak bridge structure of claim 2, wherein the limit clamping grooves (103) are arranged in an equidistant surrounding manner.

6. A novel weak bridge structure according to claim 3, wherein the number of the wire grooves (307) is several, every two wire grooves are arranged in parallel at equal intervals, and the rubber pressing pads (308) are arranged in an arc shape.

7. The weak bridge structure of claim 4, wherein the buffer block A (303) is arranged in a semicircular shape, and the buffer block B (304) is arranged in a triangular cone shape.