CN212505832U - Unit seam-crossing type multidirectional displacement comb-shaped plate bridge expansion device - Google Patents
Unit seam-crossing type multidirectional displacement comb-shaped plate bridge expansion device Download PDFInfo
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- CN212505832U CN212505832U CN202021061796.9U CN202021061796U CN212505832U CN 212505832 U CN212505832 U CN 212505832U CN 202021061796 U CN202021061796 U CN 202021061796U CN 212505832 U CN212505832 U CN 212505832U
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- toothed plate
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Abstract
The utility model provides a seam formula multidirectional comb plate bridge telescoping device that shifts is striden to unit sets up between the adjacent first roof beam body and the second roof beam body, include: the fixed toothed plate (1) is fixedly connected with the first beam body; the movable toothed plate (8) is movably connected with the second beam body, and the movable toothed plate (8) is provided with at least one rotating connecting part (10); and a movably connected support assembly (5) fixed to the second beam, comprising a rotation support (11) capable of forming a fit with the rotation connection (10) having at least two rotational degrees of freedom; an elastic connecting piece which can be connected with the movable toothed plate (8). The unit is striden seam formula multidirectional comb plate bridge telescoping device that shifts and more nimble shift of wider range have been realized for the bridge is durable more and the vehicle on the bridge can travel more safely.
Description
Technical Field
The utility model relates to a road bridge field specifically, has proposed a multidirectional comb plate bridge telescoping device that shifts of seam formula is striden to unit.
Background
In recent years, with the development of economic society, the span of a bridge is increased, and problems such as cracks or damages of the bridge due to climate temperature changes (thermal expansion and cold contraction), rising or sinking of beam ends, lateral shaking of a main beam under external force (e.g., wind force), slight inclination of the beam ends, and the like are caused as the span of the bridge is increased. Therefore, in order to meet the requirement of deformation of the deck so that the vehicle can run safely and smoothly, expansion joints and bridge expansion devices are generally provided between two beam ends of the bridge, between the beam ends and the abutment, or at the hinge positions of the bridge.
The expansion joints, i.e., the building expansion joints, are structural joints provided at appropriate locations of a building to prevent the building from cracking or breaking due to changes in weather temperatures, and buildings such as bridges are provided with different numbers of expansion joints depending on the length and structure. The bridge expansion device is arranged at the expansion joint, and the bridge expansion device is generally required to be capable of freely expanding and contracting and displacing in two directions parallel to and perpendicular to the axis of the bridge, so that the expansion and contraction and displacement requirements of a bridge body and a bridge deck are met. However, most of the current bridge expansion devices have simple structures, do not achieve ideal expansion and displacement effects, and dust and garbage easily enter gaps at beam ends, so that the comb plate is not high in anchoring strength and is easily corroded by rainwater.
SUMMERY OF THE UTILITY MODEL
The utility model provides a seam formula multidirectional comb plate bridge telescoping device is striden to unit, aim at realize wider extension and more nimble shift, prevent dust and rubbish effectively and get into the beam-ends gap, increase the anchor strength of broach board, avoid the wearing and tearing of axle, increase the direction that shifts, and independent waterproof to make this unit stride seam formula multidirectional comb plate bridge telescoping device that shifts more durable and the vehicle on the bridge can go more safely.
The above object of the present invention is achieved by the structure described below.
A unit strides seam formula multidirectional comb plate bridge telescoping device that shifts includes:
the fixed toothed plate is fixedly connected with the first beam body;
the movable toothed plate is movably connected with the second beam body and is provided with at least one rotating connecting part; and
the movable connection supporting assembly is fixed on the second beam body and comprises a rotation supporting portion and an elastic connecting piece, the rotation supporting portion can be matched with the rotation connecting portion to form at least two rotation degrees of freedom, and the elastic connecting piece can be connected with the movable toothed plate.
Preferably, the rotation connecting portion may have a convex spherical surface, and the rotation supporting portion may have a concave spherical surface capable of forming a spherical pair with the convex spherical surface.
Preferably, the rotation connecting portion may have a concave spherical surface, and the rotation supporting portion may have a convex spherical surface capable of forming a spherical pair with the concave spherical surface.
Preferably, the rotation connecting portion and the rotation supporting portion may be connected by a universal joint.
Preferably, the elastic connecting member may include a connecting rod fixedly connected to the second beam body and a spring sleeved on the connecting rod;
one end of the connecting rod is fixedly connected with the second beam body, the connecting rod can penetrate through a connecting hole formed in the movable toothed plate, and the other end of the connecting rod is provided with a limiting piece which limits the moving range of the movable toothed plate along the axial direction of the connecting rod; when the elastic connecting piece is connected with the movable toothed plate, the spring is respectively abutted to the movable toothed plate and the second beam body.
Preferably, the elastic connecting member may include a connecting rod fixedly connected to the second beam body and a spring sleeved on the connecting rod;
one end of the connecting rod is fixedly connected with the second beam body, the connecting rod can penetrate through a connecting hole formed in the movable toothed plate, and the other end of the connecting rod is provided with a limiting piece which limits the moving range of the movable toothed plate along the axial direction of the connecting rod; when the elastic connecting piece is connected with the movable toothed plate, the spring is respectively abutted to the movable toothed plate and the supporting part fixedly connected with the second beam body.
Preferably, the support portion may be integrally formed with the rotation support portion.
Preferably, the unit seam-spanning type multidirectional displacement comb-shaped plate bridge expansion device further comprises an anchoring toothed plate fixedly connected with the second beam body, a matched stepped matching surface is formed between the anchoring toothed plate and the movable toothed plate, and an elastic sealing part is arranged between the stepped matching surfaces.
Preferably, the rotation support part may be formed integrally with the anchoring toothed plate.
Preferably, an elastic pad is formed on the peripheral side of the spherical pair, and the elastic pad is disposed between the rotation connecting portion and the rotation supporting portion.
According to the unit that has above structure strides seam formula multidirectional comb plate bridge telescoping device that shifts, can realize more extensive flexible between two adjacent roof beam bodies in the bridge, more nimble shifting can also increase the anchoring strength of broach plate simultaneously, avoid adapting unit's wearing and tearing.
Drawings
Fig. 1 is a schematic configuration diagram of a unit-span-type multidirectional-displacement comb plate bridge expansion device according to an embodiment of the present invention.
Fig. 2 is a sectional view of the unit span type multi-directional shift comb plate bridge expansion device shown in fig. 1 in a step shape from a-a direction.
Fig. 3 is a partially schematic enlarged view of a portion encircled by a dotted line in fig. 2.
Fig. 4 is a schematic configuration diagram of a waterproof assembly in an embodiment of the present invention.
In the drawings, 1 represents a fixed toothed plate, 2 represents an anchoring assembly, 3 represents a dust guard, 4 represents a waterproof assembly, 5 represents a movably-connected support assembly, 6 represents a movable toothed plate assembly, 7 represents a reinforcing bar, 8 represents a movable toothed plate, 9 represents an anchoring toothed plate, 10 represents a rotatably-connected portion, 11 represents a rotatably-supported portion, 12 represents a connecting bolt, 13 represents an elastic pad, 14 represents a support plate, 15 represents a fastening bolt, 16 represents a spring, 17 represents an elastic layer, and 18 represents a beam body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work, are related to the scope of the present invention.
As shown in fig. 1 and 2, the unit span-seam type multidirectional shift comb-shaped plate bridge expansion device according to the utility model is arranged between two adjacent beams in the bridge. This unit strides seam formula multidirectional comb plate bridge telescoping device that shifts includes: the fixed toothed plate 1 is fixedly connected to the first beam body; the movable toothed plate 8 is movably connected with the second beam body; and an articulating support assembly 5.
As can be seen from the figures, the mobile tooth plate 8 has at least one rotary connection portion 10 juxtaposed in the width direction of the bridge, the mobile connection support assembly 5 is fixedly connected to the second beam and comprises a rotary support portion 11 capable of forming a fit with said rotary connection portion 10 having at least two rotational degrees of freedom; and an elastic connecting piece which can be connected with the movable toothed plate 8.
According to the unit that so constitutes strides seam formula comb plate bridge telescoping device that shifts to the great range between can realizing the roof beam body to and realize the vertical rotation and the horizontal rotation of the roof beam body, make the direction of shifting more nimble diversified.
According to an embodiment of the present invention, the rotation connecting portion 10 may be formed to have, for example, a concave spherical surface, in which case the rotation supporting portion 11 is formed to have a convex spherical surface capable of forming a spherical pair with the convex spherical surface. The rotation connecting portion 10 may be formed in, for example, a roll shape and a spherical shape, and the rotation connecting portion 10 in the present embodiment is formed in a spherical shape, so that abrasion between the contact surfaces of the rotation connecting portion and the rotation supporting portion can be reduced as compared with the roll shape. Under this condition, not only can avoid the rotation drawback such as unstable that the axle rotated wearing and tearing caused to because two rotation pieces that constitute the motion pair can make three independent relative rotations around a centre of sphere, so make the flexible and shift more nimble between the rotation piece.
According to an embodiment of the present invention, the rotation connecting portion 10 may be formed to have, for example, a concave spherical surface, in which case the rotation supporting portion 11 is formed to have a convex spherical surface capable of forming a spherical pair with the concave spherical surface. The rotation connecting portion 10 may be formed in, for example, a roller shape and a spherical shape, and the rotation connecting portion 10 in the present embodiment is formed in a spherical shape, and as in the case where the rotation connecting portion 10 is formed in a convex spherical surface and the rotation supporting portion 11 is formed in a concave spherical surface, it is possible to avoid disadvantages such as unstable rotation caused by the rotational wear of the shaft, and it is also possible to make the expansion and contraction and displacement between the rotating members more flexible because the two rotating members constituting the kinematic pair can make three independent relative rotations around one spherical center.
In addition to the above spherical pair connection method, in the unit span slit type multidirectional displacement comb plate bridge expansion device according to the present invention, the rotation connection portion 10 and the rotation support portion 11 can be connected by a connection device such as a universal joint.
According to the embodiment of the utility model, the elastic connecting piece comprises a connecting rod fixedly connected with the second beam body and a spring 16 sleeved on the connecting rod; one end of the connecting rod is fixedly connected with the second beam body, the connecting rod can penetrate through a connecting hole formed in the movable toothed plate 8, and the other end of the connecting rod is provided with a limiting part which is used for limiting the moving range of the movable toothed plate 8 along the axial direction of the connecting rod; as can be seen from the figure, when the elastic connection member is connected with the movable toothed plate 8, the spring 16 sleeved on the connection rod abuts against the movable toothed plate 8 and the second beam body, respectively.
According to the embodiment of the utility model, the elastic connecting piece comprises a connecting rod fixedly connected with the second beam body and a spring 16 sleeved on the connecting rod; one end of the connecting rod is fixedly connected with the second beam body, the connecting rod can penetrate through a connecting hole formed in the movable toothed plate, the other end of the connecting rod is provided with a limiting part, and the limiting part is used for limiting the moving range of the movable toothed plate along the axial direction of the connecting rod, so that the movable toothed plate is prevented from being too large in moving amplitude, and vehicles on the bridge deck can be guaranteed to run safely; as can be seen from fig. 2 and 3, when the elastic connecting member is connected with the movable toothed plate, the spring 16 sleeved on the connecting rod abuts against the movable toothed plate 8 and the supporting portion 14 fixedly connected with the second beam body, respectively.
According to an embodiment of the present invention, the support portion 14 is formed integrally with the rotation support portion 11.
As shown in fig. 2 and 3, according to the utility model discloses an embodiment, supporting part 14 forms a body structure with rotation supporting part 11, including metal level and elastic layer, supporting part 14 part is fixed in the internal portion of second roof beam and part exposes outside the second roof beam, and movable toothed plate 8 passes through elastic connection spare to be fixed on supporting part 14, elastic connection spare includes connecting rod and fastening bolt 15, and fastening bolt 15 is fixed on supporting part 14 through for example welded mode, is provided with spring 16 between supporting part 14 and movable toothed plate 8 for alleviate the vertical rotation of unit seam-spanning type multidirectional displacement comb plate bridge telescoping device, the vibrations that the buffering roof beam body transmitted make the bridge more durable.
The utility model discloses an in the embodiment, the fixed tooth plate passes through anchor subassembly and roof beam body coupling, and the anchor subassembly comprises the bolt sleeve, replaces conventional telescoping device's screw rod nut cooperation form, anchors through the bolt sleeve and can increase the anchor intensity of fixed tooth plate.
In an embodiment according to the utility model, the unit strides seam formula multidirectional comb plate bridge telescoping device that shifts still includes the anchoring toothed plate 9, as shown in the figure, anchoring toothed plate 9 and second roof beam body fixed connection to become to have the step fitting surface that matches between anchoring toothed plate 9 and movable tooth plate 8, be provided with the elastic sealing portion between the step fitting surface, the elastic sealing portion can be for example thin rubber slab. Similar to the fixed toothed plate, the anchoring toothed plate can also be connected with the beam body through a bolt sleeve, thereby increasing the anchoring strength.
According to the embodiment of the present invention, the rotation supporting portion 11 and the anchoring toothed plate 9 are formed as an integral structure, and specifically, the rotation supporting portion 11 is connected to the anchoring toothed plate 9 through the connecting bolt 12.
As shown in fig. 1, one end of the movable toothed plate 8 is formed with comb-shaped teeth, and is inserted into the comb-shaped end of the fixed toothed plate 1 according to the contraction and displacement of the bridge in the length direction. Through the crisscross of comb shape tooth with peg graft can make the bridge shift more smoothly in vertical flexible to the feasible power that can reduce the pinion rack and receive when pegging graft can avoid telescoping device's vibrations simultaneously, makes the vehicle that traveles on the bridge floor travel safely more.
As shown in fig. 3, according to the embodiment of the present invention, an elastic pad 13 is formed on the peripheral side of the spherical pair, and the elastic pad 13 is disposed between the rotation connecting portion 10 and the rotation supporting portion 11, and may be, for example, a rubber pad. By providing the elastic pad 13 between the rotation connecting portion 10 and the rotation supporting portion 11, the relative rotation therebetween can be made smoother, vibrations that may be generated when rotating are buffered, and noise generated when rotating can be made lower.
As shown in fig. 2, in the embodiment of the present invention, the unit span-seam type multidirectional displacement comb-shaped plate bridge expansion device further includes a dust guard 3, the fixed tooth plate 1 is fixedly connected with one end of the dust guard 3 into a whole by a connection method such as welding, and the other end of the dust guard extends to the top of the expansion joint, so as to effectively prevent dust and garbage from entering the gap between the beam bodies.
As shown in fig. 2 and 4, according to the embodiment of the present invention, a waterproof assembly 4 is provided between the first beam body and the second beam body, the waterproof assembly 4 includes positioning members 41 respectively fixedly connected to the ends of the first beam body and the second beam body, and a water guiding groove 43 provided between the positioning members 41 on both sides, the water guiding groove 43 can prevent rainwater from washing the beam body, and the water guiding groove 43 can be formed in a U shape or a V shape. Wherein, the positioning member 41 may be an angle member with an opening facing the beam body, one side of the positioning member 41 is fixed to the beam body, and a predetermined gap is left between the other side and the beam body, the upper end of the water chute 43 is bent to the outside and downward to form the overlapping part 42, and the overlapping part 42 is inserted into the gap between the positioning member 41 and the beam body to realize the installation of the waterproof assembly 4. The installation between the water chute 43 and the positioning piece 41 is detachable, so that time and labor are saved during maintenance and replacement, and the independent waterproof effect is realized.
In the embodiment according to the present invention, the unit span-seam type multidirectional displacement comb-shaped plate bridge expansion device further includes the reinforcing bars 7, both ends of the reinforcing bars 7 are inserted into the beam body 16 in advance, and the middle portion of the reinforcing bars 7 is fixedly connected to the anchor toothed plate 9. The anchoring toothed plate 9 and the beam body can be connected more firmly by embedding the steel bars 7 in advance, so that the bridge can stretch and retract and shift more stably.
The above description has described the representative embodiment of the unit seam-spanning multidirectional displacement comb plate bridge expansion device of the present invention, and it can be derived from the above description that, in the unit seam-spanning multidirectional displacement comb plate bridge expansion device, when the beam 18 generates expansion and displacement along its longitudinal direction (i.e. length direction), the comb plate of the free end of the movable toothed plate 8 and the fixed toothed plate 1 of the corresponding end form a splicing fit similar to meshing, and the distance between the two changes along with the expansion and contraction of the beam structure, thereby realizing the effect of absorbing the longitudinal movement of the beam 18 and releasing the deformation stress; when the expansion joint department bears the weight of the heavy object, because the stiff end of movable toothed plate 8 is connected with the roof beam body via swing joint supporting component 5, swing joint supporting component 5 including can form the complex rotation supporting part 11 that has two rotational degrees of freedom at least and the elastic connection spare that can be connected with movable toothed plate 8 with rotation connecting portion 10, so can realize the horizontal rotation and the vertical deflection of the roof beam body steadily, avoid movable toothed plate 8's stiff end upwarp, thereby can guarantee the security and the travelling comfort that the vehicle travel better.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a multidirectional comb plate bridge telescoping device that shifts of seam formula is striden to unit, sets up between adjacent first roof beam body and second roof beam body, its characterized in that includes:
the fixed toothed plate (1) is fixedly connected with the first beam body;
the movable toothed plate (8) is movably connected with the second beam body, and the movable toothed plate (8) is provided with at least one rotating connecting part (10); and
be fixed in swing joint supporting component (5) of the second roof beam body, swing joint supporting component (5) including can with rotate connecting portion (10) and form complex rotation supporting part (11) that have two rotational degrees of freedom at least and can with the elastic connection spare that running tooth board (8) are connected.
2. The unit-spanning multi-directional shifting comb plate bridge expansion device according to claim 1, wherein the rotation connection portion (10) has a convex spherical surface, and the rotation support portion (11) has a concave spherical surface capable of forming a spherical pair with the convex spherical surface.
3. The unit-spanning multi-directional shifting comb plate bridge expansion device according to claim 1, wherein the rotation connection portion (10) has a concave spherical surface, and the rotation support portion (11) has a convex spherical surface capable of forming a spherical pair with the concave spherical surface.
4. The unit-spanning multi-directional shifting comb plate bridge expansion device according to claim 1, wherein the rotary connecting part (10) and the rotary supporting part (11) are connected by a universal joint.
5. The unit-spanning seam-type multidirectional displacement comb plate bridge expansion device as claimed in any one of claims 1 to 4, wherein the elastic connecting piece comprises a connecting rod fixedly connected with the second beam body and a spring (16) sleeved on the connecting rod;
one end of the connecting rod is fixedly connected with the second beam body, the connecting rod can penetrate through a connecting hole formed in the movable toothed plate (8), and the other end of the connecting rod is provided with a limiting piece which limits the moving range of the movable toothed plate (8) along the axial direction of the connecting rod; when the elastic connecting piece is connected with the movable toothed plate (8), the spring (16) is respectively abutted to the movable toothed plate (8) and the second beam body.
6. The unit-spanning seam-type multidirectional displacement comb plate bridge expansion device as claimed in any one of claims 1 to 4, wherein the elastic connecting piece comprises a connecting rod fixedly connected with the second beam body and a spring (16) sleeved on the connecting rod;
one end of the connecting rod is fixedly connected with the second beam body, the connecting rod can penetrate through a connecting hole formed in the movable toothed plate (8), and the other end of the connecting rod is provided with a limiting part which limits the moving range of the movable toothed plate along the axial direction of the connecting rod; when the elastic connecting piece is connected with the movable toothed plate (8), the spring is respectively abutted to the movable toothed plate (8) and a supporting part (14) fixedly connected with the second beam body.
7. The unit-spanning multi-directional shifting comb plate bridge expansion device according to claim 6, characterized in that the support is integrally formed with the rotation support (11).
8. The unit-spanning seam-type multidirectional shifting comb-shaped plate bridge expansion device according to claim 1, further comprising an anchoring toothed plate (9) fixedly connected with the second beam body, wherein matched stepped matching surfaces are formed between the anchoring toothed plate (9) and the movable toothed plate (8), and an elastic sealing portion is arranged between the stepped matching surfaces.
9. The unit-spanning multi-directional shifting comb plate bridge expansion device according to claim 8, wherein the rotation support (11) is formed integrally with the anchoring toothed plate (9).
10. A unit-spanning multi-directional shifting comb plate bridge girder retractor according to claim 2 or 3, wherein an elastic pad (13) is formed on the periphery of the spherical pair, and the elastic pad (13) is disposed between the rotation connecting portion (10) and the rotation supporting portion (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061796.9U CN212505832U (en) | 2020-06-10 | 2020-06-10 | Unit seam-crossing type multidirectional displacement comb-shaped plate bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061796.9U CN212505832U (en) | 2020-06-10 | 2020-06-10 | Unit seam-crossing type multidirectional displacement comb-shaped plate bridge expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212505832U true CN212505832U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021061796.9U Active CN212505832U (en) | 2020-06-10 | 2020-06-10 | Unit seam-crossing type multidirectional displacement comb-shaped plate bridge expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212505832U (en) |
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2020
- 2020-06-10 CN CN202021061796.9U patent/CN212505832U/en active Active
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