TWI697604B - Built-in cable shock absorber - Google Patents

Abstract

The invention discloses a built-in cable shock absorption device, which includes a damper, a backing plate, a hole cover, an outer sleeve, a lug plate, a support sleeve, a hole edge boss, a clamp, a concave flange and a pre-embedded pipe flange , The damper is installed in the outer sleeve and one end is connected to the hole cover pin through the backing plate, and the other end is connected to the ear plate through the pin; the ear plate is welded to the fixture; the hole cover is installed on the upper port of the outer sleeve and is connected to the backing plate Bolt connection; the radial surface of the support sleeve is provided with mounting holes and a hole edge boss is arranged on the mounting hole; the outer sleeve is installed on the hole edge boss through bolts; the clamp is installed in the support sleeve and clamps the cable; The support sleeve is connected with the embedded pipe flange through the concave flange. The invention is not only convenient for installation and later maintenance, but also meets aesthetic requirements, and can adjust the eccentricity and installation angle of the cable and the embedded pipe to avoid interference with other components.

Description

Built-in cable shock absorber

The invention relates to a bridge shock absorber, in particular to a built-in cable shock absorber.

The cable is one of the main load-bearing components of the cable-stayed bridge. Due to the small quality of the cable, the large flexibility, and low internal damping, the cable is prone to vibration under the influence of the external environment. Continuous cable vibration will cause fatigue of the cable and anchor head and damage to the protective layer, resulting in secondary bending stress of the anchor head and cable, shortening the service life of the cable, increasing the frequency and cost of bridge maintenance, and causing pedestrians Doubts about the safety of cable-stayed bridges. Therefore, it is essential to suppress the vibration of the stay cable. Therefore, it is extremely necessary to install damping devices on cable bridges to ensure the safe operation of cable bridges.

There are many existing stay cable shock absorption products, such as built-in rubber shock absorbers and external dampers. The external damper is installed between the stayed cable and the box girder. Although the shock absorption performance is good, the structure is bulky and takes up a large space, which affects the overall aesthetics of the bridge.

The Chinese patent with publication number CN1730830A discloses a built-in hydraulic shock absorber for stay cables, including an adjusting cylinder, a hoop, a shock absorber bracket, a shock absorber sleeve and a shock absorber. The hoop is installed on the cable and is The inner wall surface is a semi-circular arc surface and two halves of the structure are joined together; the adjusting cylinder is sleeved on the embedded pipe, the top of the adjusting cylinder is provided with a flange, and the flange is provided with a long screw hole; the shock absorber bracket is sleeved in The outside of the hoop is formed by joining two halves of steel pipes with semi-circular arc surfaces on the inner wall. The bottom end is provided with a flange, and the flange is provided with a long screw hole. The flange is connected with the top flange of the adjusting cylinder. The top of the shock absorber bracket is connected to the cable protection cover, and two shock absorber perforations are provided on the wall of the shock absorber bracket; there are two shock absorber sleeves, which are connected to the wall of the shock absorber bracket. The shock absorber is perforated; there are two shock absorbers, one end of which is placed in the shock absorber sleeve and hinged with the shock absorber sleeve, and the other end passes through the shock absorber perforation on the shock absorber bracket tube wall and the hoop on the cable Articulated. The disadvantage of the previous patent is that the flange at the top of the adjusting cylinder cannot adjust the eccentricity between the built-in shock absorber and the cable and adjust the installation angle of the built-in shock absorber, and can only adjust the damping in the horizontal and vertical directions.

The Chinese patent with publication number CN106609493A discloses a stay cable built-in damping and damping device, which includes a support connecting tube, a waterproof cover connecting tube, a cable clamp connector, a viscous damper and a support; the support connecting tube and the bridge For pre-embedded pipe connection, the waterproof cover connecting pipe is installed on the support connecting tube and connected to the waterproof cover; the cable clamp connector is installed on the outer protective pipe of the stay cable; there are two viscous dampers, two viscous The damper is installed symmetrically with a stay cable, and the viscous damper is connected with the cable clamp connector and the double earring respectively. The double earring is connected with the support through a pin, and the support and the support connecting cylinder are connected through a bolt. The previous patent does not have an adjustable flange, so it is impossible to adjust the eccentricity between the built-in shock absorber and the cable and adjust the installation angle of the built-in shock absorber.

The technical problem to be solved by the present invention is to provide a built-in cable damping device in view of the above-mentioned deficiencies in the prior art. The damper of the present invention has a small extension and a retracted concave flange structure, which can adjust the built-in damping device and The eccentricity between cables and the installation angle of the built-in shock absorber are adjusted.

The present invention adopts the following technical solutions to achieve the above objectives:

A built-in cable shock absorption device, including a damper, an outer sleeve, an ear plate, a support sleeve, a clamp, a concave flange and a pre-embedded pipe flange. The damper is installed in the outer sleeve and the upper end of the damper is connected to the outer sleeve The upper end is connected, the lower end of the damper is connected to the lug plate through a pin shaft; the lug plate is welded to the fixture; the support sleeve is provided with mounting holes on the radial surface; the outer sleeve is mounted on the mounting hole through bolts; the fixture is installed in the support sleeve And the cable is clamped, the concave flange includes an upper edge plate, a lower edge plate and a connecting plate connecting the upper edge plate and the lower edge plate; the supporting sleeve is bolted to the upper edge plate; the lower edge plate is connected to the embedded pipe flange .

Preferably, a hole cover is installed on the upper port of the outer sleeve, and the hole cover is bolted to the backing plate.

Preferably, the upper end of the damper is connected with the backing plate pin.

Preferably, the mounting hole is provided with a hole along the boss, and the outer sleeve is bolted to the hole along the boss.

Preferably, the number of dampers is at least one.

Preferably, the clamp is divided into an upper clamp and a lower clamp, and has an arc structure;

Preferably, the ear plate is divided into an upper ear plate and a lower ear plate and has a fan-shaped structure; the upper ear plate and the lower ear plate are provided with pin holes, and the installation angle of the damper and the cable is adjusted through the pin holes;

Preferably, the number of mounting holes is at least one, and they are opened on the radial surface of the support sleeve 6.

Preferably, the lower edge plate is provided with slots, which can not only adjust the eccentricity of the damper and the cable, but also adjust the installation angle of the built-in shock absorber.

Preferably, the embedded pipe flange is provided with a notch.

The beneficial effects of the present invention are:

1. The structure of the present invention is convenient for installation and later inspection and maintenance, and meets the aesthetic requirements of bridge cables.

2. The present invention adopts the recessed flange internal shrinkage structure to reduce the diameter and size of the traditional flange, and the size of the pre-embedded nozzle flange is correspondingly reduced, so that the appearance is miniaturized and the appearance is more beautiful.

3. The invention can adjust the eccentricity and installation angle between the cable and the embedded pipe through the concave flange, and avoid the interference of the shock absorption device with other components.

The present invention will be described below with reference to Figures 1 to 8.

Example one

As shown in Figures 1 to 2, the built-in cable damping device provided by the present invention includes a damper 1, an outer sleeve 4, an ear plate 5, a support sleeve 6, a clamp 9, a concave flange 10 and For the embedded pipe flange 11, the damper 1 is installed in the outer sleeve 4 and its upper end is connected with the upper end of the outer sleeve 4. The lower end of the damper 1 is connected with the lug plate 5 through a pin shaft; the lug plate 5 is welded and connected with the fixture 9; support The radial surface of the sleeve 6 is provided with a mounting hole 7; the outer sleeve 4 is installed on the mounting hole 7 through bolts; the clamp 9 is installed in the supporting sleeve 6 and clamps the cable 12, the concave flange 10 includes an upper edge plate 101. The lower edge plate 103 and the connecting plate 102 connecting the upper edge plate 101 and the lower edge plate 103; the support sleeve 6 is bolted to the upper edge plate 101; the lower edge plate 103 is connected to the embedded pipe flange 11.

As shown in Figure 1, a hole cover 3 is installed on the upper port of the outer sleeve 4, and the hole cover 3 is bolted to the backing plate 2, which is convenient for early installation and later disassembly and maintenance.

As shown in Figure 1, the upper end of the damper 1 is connected to the backing plate 2 with a pin shaft. The pin shaft connection structure increases the freedom of movement of the damper, so that the damper can reduce the force in more directions.

As shown in Figure 1, the mounting hole 7 is provided with a hole along the boss 8 and the outer sleeve 4 is bolted to the hole along the boss 8.

As shown in Figures 1 and 2, there are preferably two dampers 1.

As shown in FIG. 2, the clamp 9 is divided into an upper clamp 91 and a lower clamp 92 and has a circular arc structure.

As shown in Figure 2, the ear plate 5 is divided into an upper ear plate 51 and a lower ear plate 52 and has a fan-shaped structure; the upper ear plate 51 is provided with pin holes through which the installation angle of the damper 1 and the cable 12 can be adjusted.

As shown in FIGS. 1 and 2, the mounting hole 7 includes a first mounting hole 71 and a second mounting hole 72. The first mounting hole 71 and the second mounting hole 72 are opened on the radial surface of the support sleeve 6.

As shown in Figures 3 and 4, the concave flange 10 includes an upper edge plate 101, a lower edge plate 103, and a connecting plate 102 connecting the upper and lower edge plates. The lower edge plate 103 is provided with slots. The concave flange 10 is a concave recessed structure. This structure reduces the size of the flange, so that the size of the embedded pipe flange 10 is also reduced correspondingly, so that the size of the embedded pipe transition to the shock absorber component is reduced, Makes the appearance of the cable installed in the present invention more beautiful; in addition, the eccentricity and installation angle between the cable and the embedded pipe are adjusted through the slot opening on the concave flange 10, which satisfies the installation conditions of the cable at any angle and avoids shock absorption The device interferes with other components.

As shown in Figure 5, the embedded pipe flange 11 is provided with notches.

Example two

As shown in Figures 3 to 6, the built-in cable damping device provided by the present invention includes a damper 1, an outer sleeve 4, an ear plate 5, a support sleeve 6, a clamp 9, a concave flange 10 and a pre Buried pipe flange 11, the damper 1 is installed in the outer sleeve 4 and its upper end is connected with the upper end of the outer sleeve 4, the lower end of the damper 1 is connected to the lug plate 5 through a pin shaft; the lug plate 5 is welded to the clamp 9; the support sleeve The radial surface of the barrel 6 is provided with a mounting hole 7; the outer sleeve 4 is installed on the mounting hole 7 through bolts; the clamp 9 is installed in the supporting sleeve 6 and clamps the cable 12, and the concave flange 10 includes an upper edge plate 101 , The lower edge plate 103 and the connecting plate 102 connecting the upper edge plate 101 and the lower edge plate 103; the supporting sleeve 6 is bolted to the upper edge plate 101; the lower edge plate 103 is connected to the embedded pipe flange 11.

As shown in Figures 3 and 4, the concave flange 10 includes an upper edge plate 101, a lower edge plate 103, and a connecting plate 102 connecting the upper and lower edge plates. The lower edge plate 103 is provided with slots. Lan 10 is a concave inward structure.

As shown in Figure 6, a hole cover 3 is installed on the upper port of the outer sleeve 4, and the hole cover 3 is bolted to the backing plate 2.

As shown in Figure 6, the upper end of the damper 1 is pin-connected to the backing plate 2.

As shown in Fig. 6, the mounting hole 7 is provided with a hole along the boss 8 and the outer sleeve 4 and the hole along the boss 8 are bolted together.

As shown in Figure 6, the number of damper 1 is one.

As shown in Fig. 6, the clamp 9 is divided into an upper clamp 91 and a lower clamp 92 and has a circular arc structure.

As shown in Figure 6, the ear plate 5 is divided into an upper ear plate 51 and a lower ear plate 52, and has a fan-shaped structure; the upper ear plate 51 is provided with pin holes, through which the installation angle of the damper 1 and the cable 12 can be adjusted.

Example three

As shown in Figures 3 to 5 and 7, the built-in cable shock absorber provided by the present invention includes a damper 1, an outer sleeve 4, an ear plate 5, a support sleeve 6, a clamp 9, and a concave shape The flange 10 and the embedded pipe flange 11, the damper 1 is installed in the outer sleeve 4 and its upper end is connected with the upper end of the outer sleeve 4, the lower end of the damper 1 is connected with the lug plate 5 through a pin; the lug plate 5 and the clamp 9 Welding connection; the radial surface of the support sleeve 6 is provided with a mounting hole 7; the outer sleeve 4 is installed on the mounting hole 7 through bolts; the clamp 9 is installed in the support sleeve 6 and clamps the cable 12, a concave flange 10 Including an upper edge plate 101, a lower edge plate 103 and a connecting plate 102 connecting the upper edge plate 101 and the lower edge plate 103; the supporting sleeve 6 is bolted to the upper edge plate 101; the lower edge plate 103 is connected to the embedded pipe flange 11 .

As shown in Figures 3 and 4, the concave flange 10 includes an upper edge plate 101, a lower edge plate 103, and a connecting plate 102 connecting the upper and lower edge plates. The lower edge plate 103 is provided with slots. Lan 10 is a concave inward structure.

As shown in Figure 7, the number of dampers 1 is three.

As shown in Fig. 7, the clamp 9 is divided into an upper clamp 91 and a lower clamp 92 and has an arc structure.

As shown in Figure 7, the ear plate 5 is divided into an upper ear plate 51 and a lower ear plate 52 and has a fan-shaped structure; the upper ear plate 51 and the lower ear plate 52 are provided with pin holes, and the damper 1 and the cable are adjusted through the pin holes 12 installation angle.

As shown in Figure 7, the mounting hole 7 includes a first mounting hole 71, a second mounting hole 72, and a third mounting hole 73. The first mounting hole 71, the second mounting hole 72, and the third mounting hole 73 are in the support sleeve. The radial surface of 6 is evenly distributed around the circumference.

Example four

As shown in Figures 3 to 5 and 8, the built-in cable shock absorber provided by the present invention includes a damper 1, a backing plate 2, a hole cover 3, an outer sleeve 4, an ear plate 5, and a support sleeve The cylinder 6, the hole along the boss 8, the clamp 9, the concave flange 10 and the embedded pipe flange 11. The damper 1 is installed in the outer sleeve 4 and its one end is connected to the hole cover 3 through the backing plate 2 and the hole cover 3 pin. One end is connected to the lug plate 5 through a pin shaft; the lug plate 5 is welded to the clamp 9; the hole cover 3 is installed on the outer sleeve 4 and bolted to the backing plate 2; the radial surface of the support sleeve 6 is provided with a mounting hole 7 And the mounting hole 7 is provided with a hole along the boss 8; the outer sleeve 4 is installed on the hole along the boss 8 through bolts; the clamp 9 is installed in the support sleeve 6 and clamps the cable 12; the female flange 10 includes The upper edge plate 101, the lower edge plate 103, and the connecting plate 102 connecting the upper edge plate 101 and the lower edge plate 103; the supporting sleeve 6 is bolted to the upper edge plate 101; the lower edge plate 103 is connected to the embedded pipe flange 11.

As shown in Figures 3 and 4, the concave flange 10 includes an upper edge plate 101, a lower edge plate 103, and a connecting plate 102 connecting the upper and lower edge plates. The lower edge plate 103 is provided with slots. Lan 10 is a concave inward structure.

As shown in Figure 8, a hole cover 3 is installed on the upper port of the outer sleeve 4, and the hole cover 3 is bolted to the backing plate 2.

As shown in Figure 8, the upper end of the damper 1 is pin-connected to the backing plate 2.

As shown in Figure 8, the mounting hole 7 is provided with a hole along the boss 8 and the outer sleeve 4 is bolted to the hole along the boss 8.

As shown in Figure 8, the number of dampers 1 is 4.

As shown in Fig. 8, the clamp 9 is divided into an upper clamp 91 and a lower clamp 92 and has an arc structure.

As shown in Figure 8, the ear plate 5 is divided into an upper ear plate 51 and a lower ear plate 52 and has a fan-shaped structure; the upper ear plate 51 and the lower ear plate 52 are provided with pin holes, and the damper 1 and the cable are adjusted through the pin holes 12 installation angle.

As shown in Figure 8, the mounting holes 7 include a first mounting hole 71, a second mounting hole 72, a third mounting hole 73, and a fourth mounting hole 74. The first mounting hole 71, the second mounting hole 72, and the third mounting hole The hole 73 and the fourth mounting hole 74 are opened on the radial surface of the support sleeve 6.

1‧‧‧ Damper 2‧‧‧Backing plate 3‧‧‧Hole cover 4‧‧‧Outer sleeve 5‧‧‧Ear plate 51‧‧‧Upper ear plate 52‧‧‧Lower ear plate 6‧‧‧Support Sleeve 7‧‧‧Mounting hole 71‧‧‧First mounting hole 72‧‧‧Second mounting hole 73‧‧‧Third mounting hole 74‧‧‧Fourth mounting hole 8‧‧‧Hole along the boss 9‧ ‧‧Clamp 91‧‧‧Upper clamp 92‧‧‧Lower clamp 10‧‧‧Concave flange 101‧‧‧Upper edge plate 102‧‧‧Connecting plate 103‧‧‧Lower edge plate 11‧‧‧Pre-embedded pipe Flange 12‧‧‧Cable

Figure 1 is a three-dimensional schematic diagram of the dual dampers structure of the built-in cable shock absorber of the present invention.

Figure 2 is a cross-sectional view of the built-in cable shock absorber of the present invention.

Figure 3 is a three-dimensional schematic diagram of the flange of the built-in cable shock absorber of the present invention.

Figure 4 is a top view of the retractable flange of the built-in cable shock absorber of the present invention.

Figure 5 is a three-dimensional schematic diagram of the embedded pipe flange of the built-in cable damping device of the present invention.

Figure 6 is a schematic diagram showing the structure of a single damper of the built-in cable shock absorber of the present invention.

Figure 7 is a schematic diagram showing the three-dampers structure of the built-in cable shock absorber of the present invention.

Figure 8 is a schematic diagram showing the structure of the four dampers of the built-in cable damping device of the present invention.

1‧‧‧Dampener

2‧‧‧Backing plate

3‧‧‧Hole cover

4‧‧‧Outer sleeve

5‧‧‧Ear plate

6‧‧‧Support sleeve

8‧‧‧Hole edge boss

9‧‧‧Fixture

10‧‧‧Concave flange

11‧‧‧Buried pipe flange

12‧‧‧Cable

Claims (7)

A built-in cable shock absorber, which includes a damper (1), an outer sleeve (4), an ear plate (5), a support sleeve (6), a clamp (9), and a concave method Flange (10) and a pre-embedded pipe flange (11), the damper (1) is installed in the outer sleeve (4) and its upper end is connected with the upper end of the outer sleeve (4), the damper (1) ) The lower end is connected to the lug plate (5) through a pin shaft; the lug plate (5) is welded to the clamp (9); the radial surface of the support sleeve (6) is provided with a mounting hole (7); the The outer sleeve (4) is installed on the mounting hole (7) through a bolt, and the upper port of the outer sleeve (4) is installed with a hole cover (3), the hole cover (3) and a backing plate (2) Bolt connection; the clamp (9) is installed in the support sleeve (6) and clamps a cable (12); the concave flange (10) includes an upper edge plate (101), a lower edge plate (103) And a connecting plate (102) connecting the upper edge plate and the lower edge plate (101, 103); the supporting sleeve (6) is bolted to the upper edge plate (101); the lower edge plate (103) and The embedded pipe flange (11) is connected. The built-in cable shock absorber described in item 1 of the scope of patent application, wherein the upper end of the damper (1) is connected with the backing plate (2) by a pin shaft. The built-in cable damping device described in item 1 of the scope of patent application, wherein the mounting hole (7) is provided with a hole along the boss (8), the outer sleeve (4) and the hole along the boss (8) )Bolted. For the built-in cable shock absorber described in any one of items 1 to 3 in the scope of the patent application, the number of the damper (1) is at least one. For example, the built-in cable damping device described in any one of items 1 to 3 in the scope of the patent application, wherein the clamp (9) is divided into an upper clamp (91), and a The lower clamp (92) has a circular arc structure. For the built-in cable shock absorber described in any one of items 1 to 3 of the scope of patent application, the ear plate (5) is fan-shaped and is provided with pin holes. For the built-in cable shock absorber described in any one of items 1 to 3 in the scope of the patent application, the number of the mounting holes (7) is at least one.

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