Composite displacement comb-type telescopic device

Abstract

The embodiment of the invention relates to the technical field of bridge expansion joints, and provides a composite displacement comb type expansion device which comprises a first toothed plate and a second toothed plate, the first toothed plate and the second toothed plate are arranged on a first beam body and a second beam body respectively, the first toothed plate is provided with a first tooth row, and the second toothed plate is provided with a second tooth row; a third tooth row and a fourth tooth row are arranged on the two sides of the third toothed plate correspondingly, the third tooth row and the first tooth row are arranged in a staggered mode, and the fourth tooth row and the second tooth row are arranged in a staggered mode; the transverse position adjusting piece is used for being arranged on the first beam body and the second beam body, and the third toothed plate is arranged on the transverse position adjusting piece; the vertical supporting piece is arranged on the first toothed plate and the second toothed plate, and the third toothed plate is also arranged on the vertical supporting piece. By means of the technical scheme, the technical problem that in the prior art, when a large gap exists between the two adjacent beam ends, a telescopic device cannot well ensure the stability of the filling gap is solved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of bridge expansion joints, and in particular, to a composite displacement comb-type expansion device. Background Art

[0002] During the service life of bridge structures, they will inevitably be affected by a variety of complex factors such as temperature changes, loads, foundation displacement, concrete shrinkage and creep. These factors will cause expansion and contraction deformation of the bridge, rotation of the beam ends, and changes in joints caused by changes in beam deflection. In order to ensure that the bridge can still achieve free deformation in strict accordance with the design requirements under the above complex working conditions, and at the same time create smooth and stable traffic conditions for vehicles, expansion joints must be reserved between two adjacent beam ends, between the beam ends and the abutments, or at the hinged positions of the bridge, and expansion devices must be installed on the bridge deck.

[0003] As an indispensable key component of the bridge structure, the telescopic device shoulders multiple important missions. First, it can accurately ensure the free deformation of the bridge deck under various working conditions, and at the same time play a role in stabilizing and reinforcing the beam end, effectively filling the gap; second, it can help vehicles pass through the bridge deck smoothly without hindrance, perfectly meeting the deformation requirements of the bridge deck. Specifically, the device has excellent adaptability to the longitudinal expansion and contraction of the bridge caused by factors such as temperature changes and automobile braking force. It has a strong bearing capacity and can steadily bear the vehicle load on the upper part of the bridge, providing a smooth and comfortable driving experience; third, it has good waterproof and drainage performance, which can prevent rainwater from invading the beam body or under the bridge from the gap in all directions, and effectively protect the bridge structure; fourth, the connection with the bridge is stable and reliable, showing good integrity, high rigidity and super durability, and can be in long-term stable service; finally, its structural design is simple and reasonable, the construction operation is convenient, the later maintenance is easy, and it is replaceable, which provides great convenience for the maintenance and management of the bridge throughout its life cycle. The telescopic device in the prior art has many advantages, but there are still some problems. For example, when a large gap appears between two adjacent beam ends, the telescopic device cannot ensure the stability of filling the gap well, and when the longitudinal displacement difference between the two adjacent beam ends is large, there is also a problem of large drop of the telescopic device. Summary of the invention

[0004] In order to overcome the above-mentioned defects, an embodiment of the present disclosure provides a composite displacement comb-type telescopic device, which solves the technical problem in the prior art that when a large gap appears between two adjacent beam ends, the telescopic device cannot ensure the stability of the filling gap.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a composite displacement comb-type telescopic device, which is used to be installed between adjacent first beams and second beams, wherein there is a gap between the first beams and the second beams, and includes: a first tooth plate and a second tooth plate, wherein the first tooth plate and the second tooth plate are respectively arranged on the first beam body and the second beam body, the first tooth plate has a first tooth row, and the second tooth plate has a second tooth row; A third tooth plate, wherein two sides of the third tooth plate are respectively provided with a third tooth row and a fourth tooth row, the third tooth row is staggered with the first tooth row, and the fourth tooth row is staggered with the second tooth row; A transverse position adjusting member, wherein the transverse position adjusting member is used to be arranged on the first beam body and the second beam body, and the third tooth plate is arranged on the transverse position adjusting member; A vertical support member is provided on the first tooth plate and the second tooth plate, and the third tooth plate is also provided on the vertical support member.

[0006] For example, in at least one embodiment of the present disclosure, a composite displacement comb-type telescopic device is provided, wherein the lateral position adjusting member comprises: A scissor-type support member, comprising a first hinge shaft, a second hinge shaft and a third hinge shaft, wherein the first hinge shaft, the second hinge shaft and the third hinge shaft are respectively used to be indirectly connected to the first tooth plate, the third tooth plate and the second tooth plate.

[0007] For example, in at least one embodiment of the present disclosure, a composite displacement comb-type telescopic device is provided, wherein the scissor-type support member further comprises: A first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are hingedly connected via the first hinge shaft; a third connecting rod and a fourth connecting rod, wherein the third connecting rod and the fourth connecting rod are hingedly connected via the third hinge shaft; A fifth connecting rod and a sixth connecting rod, wherein the fifth connecting rod and the sixth connecting rod are hinged to each other through the second hinge shaft, and one end of the fifth connecting rod is hinged to the first connecting rod, and the other end is hinged to the third connecting rod, and one end of the sixth connecting rod is hinged to the second connecting rod, and the other end is hinged to the fourth connecting rod.

[0008] For example, in at least one embodiment of the present disclosure, a composite displacement comb-type telescopic device is provided, wherein the vertical support member comprises: A first slide member and a second slide member, wherein the first slide member and the second slide member are respectively used to be indirectly connected to the first beam body and the second beam body, and the length direction of the first slide member and the second slide member is perpendicular to the length direction of the gap; The third tooth plate is arranged on the slide rail member, and the two ends of the slide rail member are respectively slidably arranged in the first slide groove member and the second slide groove member.

[0009] For example, at least one embodiment of the present disclosure provides a composite displacement comb-type telescopic device, wherein the upper end of the first hinge shaft has a first ball joint head, the upper end of the second hinge shaft has a second ball joint head, and the upper end of the third hinge shaft has a third ball joint head, and further includes: A first ball joint seat, wherein the first ball joint seat is arranged on the first tooth plate, and the first ball joint head is connected to the first ball joint seat by a ball joint; A second ball joint seat, wherein the second ball joint seat is arranged on the third tooth plate, and the second ball joint head is connected to the second ball joint seat by a ball joint; A third ball joint seat is arranged on the second tooth plate, and the third ball joint head is connected to the third ball joint seat by a ball joint. For example, at least one embodiment of the present disclosure provides a composite displacement comb-type telescopic device, wherein the lower ends of the first slide member and the second slide member respectively have a fourth ball joint and a fifth ball joint, and further include: A fourth ball joint seat, the fourth ball joint seat is arranged on the first beam body, and the fourth ball joint head is connected to the fourth ball joint seat by a ball joint; A fifth ball joint seat, wherein the fifth ball joint seat is arranged on the second beam body, and the fifth ball joint head is spherically connected to the fifth ball joint seat.

[0010] For example, in at least one embodiment of the present disclosure, a composite displacement comb-type telescopic device is provided, wherein the third tooth plate comprises: A first body and a second body, the first body is movably arranged relative to the second body, and the third tooth row and the fourth tooth row are formed on the first body and the second body respectively.

[0011] For example, at least one embodiment of the present disclosure provides a composite displacement comb-type telescopic device, wherein the first main body is slidably arranged relative to the second main body, and the third tooth row and the fourth tooth row both have a limiting top, and the limiting top is used to abut against the first tooth plate and the second tooth plate, thereby limiting the gap between the third tooth row and the first tooth row to be greater than 0, and limiting the gap between the fourth tooth row and the second tooth row to be greater than 0; and also includes a first elastic member, wherein one end of the first elastic member acts on the first main body, and the other end acts on the second main body, thereby providing a force to move the first main body and the second main body away from each other.

[0012] For example, at least one embodiment of the present disclosure provides a composite displacement comb-type telescopic device, wherein the first body is swingably arranged relative to the second body, and the swing axis is parallel to the length direction of the gap.

[0013] For example, at least one embodiment of the present disclosure provides a composite variable position comb-type telescopic device, wherein both the first tooth row and the second tooth row have a limit stop, and the limit stop is used to limit the position where the first body and the second body swing, and further includes: A second elastic member, one end of which acts on the first body, and the other end of which acts on the second body, to provide a force for the first body and the second body to swing downward.

[0014] The beneficial effects of the embodiments of the present disclosure are: In the present disclosure, the performance and stability of the telescopic device in dealing with complex beam end displacement are significantly improved. By using the lateral position adjustment member and the vertical support member, combined with the staggered tooth plate tooth rows, effective adaptation and stable support for beam end displacement are achieved. The structure of the telescopic device is improved to better meet the deformation requirements of the bridge under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0016] Figure 1 This is a schematic structural diagram of a composite displacement comb-type telescopic device in one embodiment of the present disclosure; Figure 2 for Figure 1 AA cross-sectional structure diagram; Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the middle BB; Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the CC; Figure 5 It is a schematic structural diagram of a first ball joint head, a second ball joint head and a third ball joint head in another embodiment of the present disclosure; Figure 6 for Figure 5 A schematic structural diagram of a fourth ball joint and a fifth ball joint in an embodiment of the present invention; Figure 7 This is a structural schematic diagram of a third tooth plate in another embodiment of the present disclosure; Figure 8 for Figure 7 A schematic diagram of the internal structure of the third tooth plate in the embodiment of FIG. Fig. 9 This is a structural schematic diagram of a third tooth plate in another embodiment of the present disclosure; Fig.10 for Fig. 9 A schematic structural diagram of the third tooth plate in another perspective of the embodiment; In the figure: first beam body-1, second beam body-2, gap-3, first tooth plate-4, first tooth row-401, limit stopper-402, second tooth plate-5, second tooth row-501, third tooth plate-6, third tooth row-601, fourth tooth row-602, first body-603, second body-604, limit top-605, lateral position adjustment member-7, scissor support member-701, first hinge shaft-702, second hinge shaft-703, third hinge shaft-704, first connecting rod-705, second connecting rod-706, The third connecting rod -707, the fourth connecting rod -708, the fifth connecting rod -709, the sixth connecting rod -710, the first ball joint -711, the second ball joint -712, the third ball joint -713, the vertical support member -8, the first slide groove member -801, the second slide groove member -802, the slide rail member -803, the fourth ball joint -804, the fifth ball joint -805, the first ball joint seat -9, the second ball joint seat -10, the third ball joint seat -11, the fourth ball joint seat -12, the fifth ball joint seat -13, the first elastic member -14, the second elastic member -15. DETAILED DESCRIPTION The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0017] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0018] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0019] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0020] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] like Figure 1~Figure 4 As shown, it shows a composite displacement comb-type telescopic device in an embodiment of the present disclosure, which is used to be installed between adjacent first beam bodies 1 and second beam bodies 2, with a gap 3 therebetween.

[0023] The first tooth plate 4 is mounted on the first beam body 1 and has a first tooth row 401; the second tooth plate 5 is mounted on the second beam body 2 and has a second tooth row 501. The third tooth rows 601 on both sides of the third tooth plate 6 are staggered with the first tooth row 401, and the fourth tooth row 602 is staggered with the second tooth row 501. After the third tooth plate 6 is added, the length of the telescopic device can be greatly increased. Compared with the design of only the first tooth plate 4 and the second tooth plate 5 in the prior art, when a large gap appears at the ends of two adjacent beams, the telescopic device can also well ensure the stability of the gap filling.

[0024] In practical applications, for example, when the bridge is affected by factors such as temperature changes and vehicle loads: the lateral position adjustment member 7 is arranged on the first beam body 1 and the second beam body 2, and can be adjusted according to the lateral displacement between the beam bodies to ensure the stability and adaptability of the third tooth plate 6 in the lateral position, thereby ensuring that when a large gap appears at the ends of two adjacent beams, the gap can still be effectively filled.

[0025] The vertical support member 8 is arranged on the first tooth plate 4 and the second tooth plate 5 to provide vertical support for the third tooth plate 6. When the longitudinal displacement difference between two adjacent beam ends is large, the vertical support member 8 can effectively reduce the drop of the telescopic device, so that the device can adapt to the displacement of the beam body more smoothly.

[0026] The advantages of this design are: first, the adaptability to the lateral displacement of the beam end and the stability of gap filling are improved by the staggered arrangement of the teeth and the lateral position adjustment member 7. Second, the arrangement of the vertical support member 8 reduces the drop problem caused by the longitudinal displacement difference, and enhances the overall stability and reliability of the device.

[0027] For example, in seasons with large temperature differences or under heavy traffic conditions, the telescopic device can work stably to ensure the normal use of the bridge and safe and comfortable driving.

[0028] In terms of technical effects, the performance and stability of the telescopic device in dealing with complex beam end displacement are significantly improved. Overall working principle: The horizontal position adjustment member 7 and the vertical support member 8 are combined with the staggered tooth plate teeth to achieve effective adaptation and stable support for beam end displacement. Overall technical effect: The structure of the telescopic device is improved to better meet the deformation requirements of the bridge under various working conditions.

[0029] In some examples, the lateral position adjustment member 7 includes a scissor-type support member 701. The scissor-type support member 701 is composed of a first hinge shaft 702, a second hinge shaft 703, and a third hinge shaft 704. In actual work, for example, when the bridge is subjected to a lateral force causing the beam body to undergo lateral displacement: the first hinge shaft 702 is indirectly connected to the first tooth plate 4, the second hinge shaft 703 is indirectly connected to the third tooth plate 6, and the third hinge shaft 704 is indirectly connected to the second tooth plate 5. When a lateral relative displacement occurs between the first beam body 1 and the second beam body 2, the scissor-type support member 701 can perform corresponding expansion and contraction and deformation through its unique hinge structure.

[0030] The advantages of this design are: first, the structure of the scissor-type support member 701 is flexible and can effectively adapt to different degrees of lateral displacement; second, the connection through multiple hinged axes ensures the stability and reliability of the connection, while allowing the components to rotate relative to each other, thereby achieving precise adjustment of the lateral position.

[0031] For example, in the event of strong winds or vehicle eccentric loading, the scissor-type support member 701 can quickly respond to the lateral movement of the beam body to maintain the overall stability and functional integrity of the telescopic device.

[0032] In terms of technical effects, the adjustment capability and response speed of the telescopic device to lateral displacement are significantly improved. Overall working principle: With the help of the hinged structure of the scissor-type support member 701 and the connection between each hinge shaft and the tooth plate, effective adaptation and adjustment to lateral displacement are achieved. Overall technical effect: The structure of the lateral position adjustment member 7 is optimized, and the performance of the telescopic device in lateral displacement is enhanced.

[0033] In some examples, the specific structure of the scissor-type support member 701 is as follows: the first link 705 and the second link 706 are hinged through the first hinge axis 702, the third link 707 and the fourth link 708 are hinged through the third hinge axis 704, and the fifth link 709 and the sixth link 710 are hinged through the second hinge axis 703.

[0034] In actual application scenarios, for example, a bridge is subjected to complex external forces: when the first beam body 1 and the second beam body 2 move relative to each other laterally, the first link 705 and the second link 706 rotate around the first hinge axis 702, and the third link 707 and the fourth link 708 rotate around the third hinge axis 704. At the same time, the hinge point at which one end of the fifth link 709 is hinged to the first link 705 and the other end is hinged to the third link 707, and the hinge point at which one end of the sixth link 710 is hinged to the second link 706 and the other end is hinged to the fourth link 708 also rotate and move accordingly.

[0035] The advantages of this design are: first, through the articulated combination of multiple connecting rods, a stable and flexible structure is formed, which can effectively bear and transmit lateral forces and make adaptive adjustments according to the displacement of the beam body. Second, the coordinated movement between the connecting rods enables the scissor support 701 to evenly share the load during operation, thereby improving its load-bearing capacity and durability.

[0036] For example, when the bridge is frequently subjected to lateral displacement caused by vehicle loads and temperature changes, this complex connecting rod articulated structure can ensure that the scissor-type support member 701 works stably for a long time and ensure that the performance of the telescopic device is not affected.

[0037] In terms of technical effects, the structural stability and adaptability of the scissor-type support 701 to lateral displacement are significantly enhanced. Overall working principle: The articulated relationship of multiple connecting rods is used to achieve flexible deformation and stable support of the scissor-type support 701 under lateral displacement. Overall technical effect: The structure of the scissor-type support 701 is further optimized, and the reliability and adaptability of the telescopic device in lateral displacement are improved.

[0038] In some examples, the vertical support member 8 includes a first slide member 801, a second slide member 802 and a rail member 803. In actual use, for example, when the bridge is deformed: the first slide member 801 is indirectly connected to the first beam body 1, the second slide member 802 is indirectly connected to the second beam body 2, and the length direction of the first slide member 801 and the second slide member 802 is perpendicular to the length direction of the gap 3. The rail member 803 is provided with a third toothed plate 6, and its two ends are respectively slidably arranged in the first slide member 801 and the second slide member 802.

[0039] When the first beam body 1 and the second beam body 2 are displaced, the slide rail member 803 will slide in the first slide groove member 801 and the second slide groove member 802 accordingly, so as to adapt to the displacement of the beam body. The lateral position adjustment member 7 can be extended and retracted, and can adjust the third tooth plate 6 to be always in the middle position between the first tooth plate 4 and the second tooth plate 5. The lateral position adjustment member 7 cannot provide sufficient vertical support force for the third tooth plate 6, and the vertical support of the third tooth plate 6 is ensured by the vertical support member 8.

[0040] The advantages of this design are: first, through the cooperation of the slide groove and the slide rail, a stable sliding guide is provided to ensure the smooth displacement. Second, it can effectively disperse and bear the vertical load, reduce the local stress concentration caused by vertical deformation, and improve the overall durability of the device.

[0041] For example, when the bridge is subjected to impact forces such as the passage of heavy-loaded vehicles or earthquakes, the vertical support members 8 can respond and adjust quickly to ensure the normal operation of the telescopic device and the safety of the bridge structure.

[0042] In terms of technical effects, the adaptability and bearing performance of the telescopic device to vertical displacement are significantly improved. Overall working principle: The first slide member 801, the second slide member 802 and the slide rail member 803 are used to slide together to achieve effective support and adaptation to displacement. Overall technical effect: The structure of the vertical support member 8 is optimized, and the performance and reliability of the telescopic device in vertical displacement are enhanced.

[0043] like Figure 5 As shown, in some examples, the upper end of the first hinge shaft 702 has a first ball joint 711, the upper end of the second hinge shaft 703 has a second ball joint 712, and the upper end of the third hinge shaft 704 has a third ball joint 713. At the same time, it also includes a first ball joint seat 9, a second ball joint seat 10 and a third ball joint seat 11.

[0044] In actual operation, for example, when a bridge is subjected to complex displacement in multiple directions: the first ball joint seat 9 is arranged on the first tooth plate 4, and the first ball joint head 711 is connected to the first ball joint seat 9 by a ball joint, so that the first hinge shaft 702 can rotate freely and adjust the angle within a certain range to adapt to forces and displacements in different directions. The second ball joint seat 10 is arranged on the third tooth plate 6, and the second ball joint head 712 is connected to the second ball joint seat 10 by a ball joint, providing the second hinge shaft 703 with the flexibility of multi-directional rotation. The third ball joint seat 11 is arranged on the second tooth plate 5, and the third ball joint head 713 is connected to the third ball joint seat 11 by a ball joint, so that the third hinge shaft 704 can adapt to various complex displacement conditions.

[0045] The advantages of this design are: first, the ball joint connection increases the freedom of movement of the hinge axis, which can better cope with the multi-directional and multi-angle displacement of the bridge under different working conditions. Second, it improves the stability and adaptability of the connection between the entire scissor-type support 701 and the tooth plate, reducing the stress concentration and damage risk caused by connection restrictions. Third, the third tooth plate 6 can be adjusted to always be in the middle position between the first tooth plate 4 and the second tooth plate 5.

[0046] For example, when the bridge is subjected to uneven settlement or sudden strong impact, the ball joint connection can effectively disperse and transmit the force, ensuring the normal operation of the scissor-type support member 701 and the stability of the telescopic device.

[0047] In terms of technical effects, the flexibility and adaptability of the connection between the scissor-type support 701 and the tooth plate are significantly enhanced, and the overall performance and reliability of the telescopic device are improved. Overall working principle: Through the cooperation of the ball joint head and the ball joint seat, the multi-directional rotation of the hinge shaft is realized, so that the scissor-type support 701 can better adapt to the complex displacement of the bridge. Overall technical effect: The connection structure between the scissor-type support 701 and the tooth plate is optimized, and the working performance and stability of the telescopic device under complex working conditions are improved.

[0048] like Figure 6 As shown, in some examples, the lower ends of the first slide member 801 and the second slide member 802 have a fourth ball joint 804 and a fifth ball joint 805 respectively.

[0049] In actual application scenarios, for example, when a bridge undergoes uneven deformation during use: the fourth ball joint seat 12 is arranged on the first beam body 1, and the fourth ball joint head 804 at the lower end of the first slide member 801 is ball-jointedly connected to the fourth ball joint seat 12, so that the first slide member 801 can freely rotate and adjust the angle to a certain extent to adapt to various displacement conditions of the first beam body 1.

[0050] The fifth ball joint seat 13 is arranged on the second beam body 2, and the fifth ball joint head 805 at the lower end of the second slide groove member 802 is ball-jointed to the fifth ball joint seat 13, providing the second slide groove member 802 with flexible rotation and angle adjustment capabilities to cope with different displacements of the second beam body 2.

[0051] The advantages of this design are: first, the ball joint connection increases the degree of freedom of connection between the slide member and the beam body, which can better adapt to the complex displacement of the beam body and reduce the stress concentration and damage caused by connection restrictions. Second, it improves the overall adaptability and stability of the vertical support member 8, ensuring that the vertical support member 8 can effectively play a supporting and guiding role when various deformations occur in the bridge.

[0052] For example, when the bridge is subjected to strong vibration and displacement caused by special circumstances such as earthquakes, the ball joint connection can enable the first slide member 801 and the second slide member 802 to better follow the movement of the beam body, ensuring the normal operation of the telescopic device and the safety of the bridge structure.

[0053] In terms of technical effects, the flexibility and adaptability of the connection between the vertical support member 8 and the beam body are significantly enhanced, and the reliability and stability of the telescopic device under complex working conditions are improved. Overall working principle: Through the cooperation of the ball joint head and the ball joint seat, the first slide member 801 and the second slide member 802 can flexibly adapt to the displacement of the beam body, thereby ensuring the normal operation of the vertical support member 8. Overall technical effect: The connection structure between the vertical support member 8 and the beam body is optimized, and the performance of the telescopic device in dealing with complex bridge displacement is improved, so that lateral displacement, longitudinal displacement and vertical displacement can all be dealt with stably, and the third tooth plate 6 is always ensured to be in the center between the first tooth plate 4 and the second tooth plate 5.

[0054] like Figure 7~Figure 10 As shown, in some examples, the third tooth plate 6 includes a first body 603 and a second body 604 , and the first body 603 is movably arranged relative to the second body 604 .

[0055] In actual working conditions, for example, when the bridge is greatly displaced: the third tooth row 601 is formed on the first body 603, and the fourth tooth row 602 is formed on the second body 604. When the displacement of the bridge causes a large change in the relative position between the first tooth plate 4 and the second tooth plate 5, the first body 603 can be adjusted relative to the second body 604.

[0056] The advantages of this design are: first, it increases the adaptability of the third tooth plate 6 to complex displacement, and can better cooperate with the first tooth plate 4 and the second tooth plate 5 to maintain the sealing and stability of the telescopic device. Second, through the movable setting, the stress is dispersed, reducing the risk of damage to the third tooth plate 6 due to excessive deformation.

[0057] For example, when the bridge is subjected to extreme temperature changes or sudden large loads, the structure of the third tooth plate 6 can effectively adapt to the deformation, ensure the normal operation of the telescopic device, and extend its service life.

[0058] In terms of technical effects, the displacement adaptability and durability of the third tooth plate 6 are significantly improved. Overall working principle: the relative movement of the first body 603 and the second body 604 is utilized to enable the third tooth plate 6 to better cope with the displacement of the bridge. Overall technical effects: the structure of the third tooth plate 6 is optimized, and the reliability and service life of the telescopic device under complex working conditions are improved.

[0059] like Figure 7~Figure 8 As shown, in some examples, the first body 603 is slidably arranged relative to the second body 604, and the third tooth row 601 and the fourth tooth row 602 both have a limiting top 605, and the limiting top 605 is used to abut against the first tooth plate 4 and the second tooth plate 5, so as to limit the gap between the third tooth row 601 and the first tooth row 401 to be greater than 0, and to limit the gap between the fourth tooth row 602 and the second tooth row 501 to be greater than 0; it also includes a first elastic member 14, one end of the first elastic member 14 acts on the first body 603, and the other end acts on the second body 604, so as to provide a force to move the first body 603 and the second body 604 away from each other.

[0060] In actual operation, for example, when the bridge undergoes a large telescopic deformation: the first body 603 slides relative to the second body 604 to adapt to the position change between the first tooth plate 4 and the second tooth plate 5. The limit top 605 abuts against the first tooth plate 4 and the second tooth plate 5, which can limit the gap between the third tooth row 601 and the first tooth row 401 and the gap between the fourth tooth row 602 and the second tooth row 501 to be greater than 0, thereby ensuring that there will be no excessive gap and ensuring the performance of the telescopic device.

[0061] One end of the first elastic member 14 acts on the first body 603, and the other end acts on the second body 604, providing a force to move the first body 603 and the second body 604 away from each other. This allows the first body 603 and the second body 604 to maintain a certain tension in a normal state, to rebound better when compressed, and to provide a certain buffering effect during the expansion and contraction process.

[0062] The advantages of this design are: first, the gap between the teeth is effectively controlled by the sliding setting and the limit top 605, ensuring the reliability of the device. Second, the setting of the first elastic member 14 enhances the adaptive ability and buffering performance of the device, which can reduce the impact of the bridge displacement on the telescopic device and extend its service life.

[0063] For example, when a bridge frequently experiences large expansion and contraction deformations, this structure can always maintain a good buffering effect to ensure smooth and safe driving.

[0064] In terms of technical effects, the adaptive ability and buffering effect of the telescopic device are significantly improved. Overall working principle: Through the synergistic effect of sliding, limiting and elastic parts, the third tooth plate 6 can flexibly adapt to displacement while ensuring interval stability and buffering effect. Overall technical effect: The structure and performance of the third tooth plate 6 are further optimized, and the overall reliability and stability of the telescopic device are improved.

[0065] like Figure 9~Figure 10 As shown, in some examples, the first body 603 is swingably arranged relative to the second body 604 , and the swing axis is parallel to the length direction of the gap 3 .

[0066] In actual use, for example, when the bridge has uneven settlement or is subjected to complex deformations such as lateral torsion: since the first body 603 can swing relative to the second body 604, and the swing axis is parallel to the length direction of the gap 3, the third tooth plate 6 can better adapt to such complex deformations. When one end of the bridge settles more or is subjected to lateral torsion, the first body 603 can swing accordingly relative to the second body 604, thereby maintaining good cooperation with the first tooth plate 4 and the second tooth plate 5, reducing stress concentration and damage caused by deformation.

[0067] The advantages of this design are: first, the third tooth plate 6 is increased in its ability to cope with deformation in different directions and forms, thereby improving the overall adaptability of the telescopic device; second, the swing setting can more flexibly adjust the position and angle of the tooth plate, thereby ensuring the sealing performance and structural stability under various complex working conditions.

[0068] For example, in areas with complex geological conditions or where the bridge is subjected to special external forces, the third tooth plate 6 with a swinging arrangement can effectively cope with various unexpected situations and ensure the normal operation of the telescopic device and the safe use of the bridge.

[0069] In terms of technical effects, the deformation adaptability and structural stability of the third tooth plate 6 are significantly enhanced. Overall working principle: the third tooth plate 6 can be adaptively adjusted according to the deformation of the bridge by swinging the first body 603 relative to the second body 604. Overall technical effect: the structure of the third tooth plate 6 is optimized, and the working performance and reliability of the telescopic device under complex bridge deformation conditions are improved.

[0070] In some examples, the first tooth row 401 and the second tooth row 501 both have a limit stop 402, which is used to limit the swinging position of the first body 603 and the second body 604, and also includes a second elastic member 15, one end of the second elastic member 15 acts on the first body 603, and the other end acts on the second body 604, providing a force for the first body 603 and the second body 604 to swing downward.

[0071] In actual working scenarios, for example, when the bridge is subjected to a large longitudinal or lateral displacement: since the first body 603 is set to swing relative to the second body 604, during the swinging process, the limit stop 402 on the first tooth row 401 and the second tooth row 501 can limit the swinging position of the first body 603 and the second body 604 to prevent excessive swinging from causing structural instability and failure.

[0072] One end of the second elastic member 15 acts on the first body 603, and the other end acts on the second body 604, providing a force for the first body 603 and the second body 604 to swing downward. In this way, under normal conditions, a certain pre-tightening force can be maintained to enhance the stability and sealing of the structure; when subjected to a large displacement force, the elastic member can play a role of buffering and restoring, so that the first body 603 and the second body 604 can quickly return to the appropriate position after displacement.

[0073] The advantages of this design are: first, the swing range is accurately controlled by the limit stopper 402 to ensure the safety and stability of the structure. Second, the provision of the second elastic member 15 improves the self-adaptability and reset performance of the device and prolongs its service life.

[0074] For example, on bridges that are frequently subjected to heavy vehicles and severe weather, this design can ensure that the telescopic device maintains good performance during long-term use and reduce maintenance costs.

[0075] In terms of technical effects, the controllability and stability of the swing of the third tooth plate 6 are significantly improved, and the overall performance and reliability of the telescopic device are enhanced. Overall working principle: With the help of the limit stop 402 and the second elastic member 15, the swing of the first body 603 and the second body 604 is effectively controlled to achieve adaptation to the displacement of the bridge and protection of the structure. Overall technical effect: The swing structure of the third tooth plate 6 is further optimized, and the working performance and durability of the telescopic device under complex working conditions are improved, and the third tooth row 601 and the fourth tooth row 602 on both sides of the third tooth plate 6 can be better aligned with the second tooth row 501 and the first tooth row 401, avoiding the third tooth row 601 and the fourth tooth row 602 from tilting or sinking relative to the second tooth row 501 and the first tooth row 401.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in the scope of the claims of the present disclosure.

Claims

1. A composite displacement comb-type telescopic device, used for being installed between adjacent first beams (1) and second beams (2), wherein there is a gap (3) between the first beams (1) and the second beams (2), characterized in that: include: A first tooth plate (4) and a second tooth plate (5), wherein the first tooth plate (4) and the second tooth plate (5) are respectively arranged on the first beam body (1) and the second beam body (2), the first tooth plate (4) having a first tooth row (401), and the second tooth plate (5) having a second tooth row (501); a third tooth plate (6), wherein two sides of the third tooth plate (6) are respectively provided with a third tooth row (601) and a fourth tooth row (602), the third tooth row (601) and the first tooth row (401) are arranged in an alternating manner, and the fourth tooth row (602) and the second tooth row (501) are arranged in an alternating manner; a transverse position adjusting member (7), the transverse position adjusting member (7) being used to be arranged on the first beam body (1) and the second beam body (2), and the third tooth plate (6) being arranged on the transverse position adjusting member (7); A vertical support member (8), wherein the vertical support member (8) is arranged on the first tooth plate (4) and the second tooth plate (5), and the third tooth plate (6) is also arranged on the vertical support member (8).

2. A composite displacement comb-type telescopic device according to claim 1, characterized in that: The lateral position adjusting member (7) comprises: A scissor-type support member (701), the scissor-type support member (701) comprising a first hinge shaft (702), a second hinge shaft (703) and a third hinge shaft (704), the first hinge shaft (702), the second hinge shaft (703) and the third hinge shaft (704) being respectively used for being indirectly connected to the first tooth plate (4), the third tooth plate (6) and the second tooth plate (5).

3. A composite displacement comb-type telescopic device according to claim 2, characterized in that: The scissor-type support member (701) further comprises: A first connecting rod (705) and a second connecting rod (706), wherein the first connecting rod (705) and the second connecting rod (706) are hingedly connected via the first hinge shaft (702); A third connecting rod (707) and a fourth connecting rod (708), wherein the third connecting rod (707) and the fourth connecting rod (708) are hingedly connected via the third hinge shaft (704); A fifth link (709) and a sixth link (710), wherein the fifth link (709) and the sixth link (710) are hingedly connected via the second hinge shaft (703), and one end of the fifth link (709) is hingedly connected to the first link (705), and the other end is hingedly connected to the third link (707); and one end of the sixth link (710) is hingedly connected to the second link (706), and the other end is hingedly connected to the fourth link (708).

4. A composite displacement comb-type telescopic device according to claim 2, characterized in that: The vertical support member (8) comprises: A first slide groove member (801) and a second slide groove member (802), wherein the first slide groove member (801) and the second slide groove member (802) are respectively used to be indirectly connected to the first beam body (1) and the second beam body (2), and the length direction of the first slide groove member (801) and the second slide groove member (802) are perpendicular to the length direction of the gap (3); A slide rail member (803), wherein the third tooth plate (6) is arranged on the slide rail member (803), and two ends of the slide rail member (803) are respectively slidably arranged in the first slide groove member (801) and the second slide groove member (802).

5. A composite displacement comb-type telescopic device according to claim 4, characterized in that: The upper end of the first hinge shaft (702) has a first ball joint (711), the upper end of the second hinge shaft (703) has a second ball joint (712), and the upper end of the third hinge shaft (704) has a third ball joint (713), and further comprises: a first ball joint seat (9), the first ball joint seat (9) being arranged on the first tooth plate (4), the first ball joint head (711) being connected to the first ball joint seat (9) by a ball joint; a second ball joint seat (10), wherein the second ball joint seat (10) is arranged on the third tooth plate (6), and the second ball joint head (712) is connected to the second ball joint seat (10) in a ball joint; A third ball joint seat (11), wherein the third ball joint seat (11) is arranged on the second tooth plate (5), and the third ball joint head (713) is connected to the third ball joint seat (11) by means of a ball joint.

6. A composite displacement comb-type telescopic device according to claim 5, characterized in that: The lower ends of the first slide member (801) and the second slide member (802) are provided with a fourth ball joint (804) and a fifth ball joint (805) respectively, and further include: A fourth ball joint seat (12), the fourth ball joint seat (12) being arranged on the first beam body (1), the fourth ball joint head (804) being connected to the fourth ball joint seat (12) in a ball joint manner; A fifth ball joint seat (13), wherein the fifth ball joint seat (13) is arranged on the second beam body (2), and the fifth ball joint head (805) is connected to the fifth ball joint seat (13) in a ball joint manner.

7. A composite displacement comb-type telescopic device according to claim 6, characterized in that: The third tooth plate (6) comprises: A first body (603) and a second body (604), wherein the first body (603) is movably arranged relative to the second body (604), and the third tooth row (601) and the fourth tooth row (602) are respectively formed on the first body (603) and the second body (604).

8. A composite displacement comb-type telescopic device according to claim 7, characterized in that: The first body (603) is slidably arranged relative to the second body (604); the third tooth row (601) and the fourth tooth row (602) both have a limiting top (605); the limiting top (605) is used to abut against the first tooth plate (4) and the second tooth plate (5), so as to limit the gap between the third tooth row (601) and the first tooth row (401) to be greater than 0, and to limit the gap between the fourth tooth row (602) and the second tooth row (501) to be greater than 0; and further comprises a first elastic member (14); one end of the first elastic member (14) acts on the first body (603) and the other end acts on the second body (604), so as to provide a force for moving the first body (603) and the second body (604) away from each other.

9. The composite displacement comb-type telescopic device according to claim 7, characterized in that: The first body (603) is swingably arranged relative to the second body (604), and the swing axis is parallel to the length direction of the gap (3).

10. A composite displacement comb-type telescopic device according to claim 9, characterized in that: The first tooth row (401) and the second tooth row (501) both have a limit stop (402), the limit stop (402) being used to limit the swinging position of the first body (603) and the second body (604), and further comprising: A second elastic member (15), wherein one end of the second elastic member (15) acts on the first body (603) and the other end of the second elastic member (15) acts on the second body (604), providing a force for the first body (603) and the second body (604) to swing downward.

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