Comb plate expansion joint sinking prevention device
By installing an anti-sinking device within the gaps of the comb plates, the problem of motorcycle and bicycle wheels sinking into the gaps is solved, improving safety and comfort while maintaining the normal telescopic function of the comb plates.
Patent Information
- Application Number
- CN202422664360.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-11-01
AI Technical Summary
During use, the wheels of motorcycles and bicycles are prone to getting stuck in the tooth grooves of the existing comb plate telescopic device, which can lead to traffic accidents. Furthermore, existing improvement measures may affect driving comfort or reduce the load-bearing capacity of the device.
An anti-sinking device is installed in the gap of the comb plate, including an anti-sinking support plate and a limiting linkage mechanism. The anti-sinking device is guided by a guide groove to achieve synchronous telescopic movement, preventing the wheel from sinking into the gap.
It effectively prevents motorcycle and bicycle wheels from getting stuck in the gap, while maintaining the normal telescopic function of the comb plate, without affecting riding comfort and the load-bearing capacity of the device.
Smart Images
Figure CN223880189U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge expansion joint technology field, concretely is a comb tooth board expansion joint anti -trap device. BACKGROUND
[0002] It is known that expansion joint is the constructional joint set to prevent the structural crack or damage due to the climate temperature change (thermal expansion, cold shrinkage) of building component, and a kind of expansion device needs to be installed at constructional joint, and the more commonly used is comb tooth board expansion device.
[0003] With the development of city, the rapid road of city has also been developed correspondingly, in order to alleviate the need of city traffic, city bridge is also rapidly increasing, and span is also more and more big.Most city bridges are for the traffic of motor vehicle (including motorcycle) and non-motor vehicle, in order to guarantee the load bearing and deflection resistance of comb tooth part of comb tooth board expansion device, each comb tooth in comb tooth structure needs to keep a certain width size, therefore, there is gap (conventionally 50-60mm) between the tooth tip and tooth root of fixed plate and cross joint plate, and the width of tooth slot has exceeded the width of tire of motorcycle and bicycle, therefore, when motorcycle and bicycle pass through expansion joint, the wheel can be trapped in the gap between tooth slot, and it is easy to fall down, and traffic safety accident is caused.
[0004] At present, in order to prevent the wheel of motorcycle and non-motor vehicle from being trapped in the gap of comb tooth, cover plate is generally installed on tooth plate, but it will affect driving comfort and increase driving noise in use process. There is also structural improvement by reducing the gap of adjacent comb tooth, but after the gap of comb tooth is reduced, the width size of each comb tooth also needs to be correspondingly reduced, thereby leading to the reduction of load bearing and deflection resistance of comb tooth part of expansion device, further causing hidden trouble to bridge safety, and also affecting the service life of expansion device, therefore, the utility model provides a kind of comb tooth board expansion joint anti -trap device to solve the above problems. UTILITY MODEL CONTENT
[0005] (I) technical problem solved
[0006] In view of the deficiency of prior art, the utility model provides a kind of comb tooth board expansion joint anti -trap device, which will not affect the normal expansion of comb tooth board.
[0007] (II) technical scheme
[0008] To achieve the above object, the utility model provides the following technical scheme: a comb tooth plate expansion joint anti -trap device, including fixed comb tooth plate and movable comb tooth plate, the head of movable comb tooth plate and the root of fixed comb tooth plate are provided with comb tooth gap, the head of fixed comb tooth plate and movable comb tooth plate are provided with comb tooth gap, first anti -trap device and second anti -trap device are provided in comb tooth gap, one end of first anti -trap device is connected with fixed comb tooth plate, the other end of first anti -trap device is connected with movable comb tooth plate, one end of second anti -trap device is connected with movable comb tooth plate, the other end of second anti -trap device is connected with fixed comb tooth plate.
[0009] Further, the utility model discloses the improvement has, and the anti -trap device includes anti -trap support plate, limit link mechanism, first connecting plate, second connecting plate.
[0010] Further, the utility model discloses the improvement has, and the side of movable comb tooth plate on comb tooth gap is opened first guide sliding slot.
[0011] On the basis of the above content, the utility model discloses the improvement has, and the side of fixed comb tooth plate on comb tooth gap is opened second guide sliding slot.
[0012] Further, the utility model discloses the improvement has, and first anti -trap device and second anti -trap device all include anti -trap support plate and limit link mechanism, and anti -trap support plate is spaced apart along the length direction of comb tooth gap, and both ends of anti -trap support plate are located in corresponding guide sliding slot respectively.
[0013] Further, the utility model discloses the improvement has, and limit link mechanism includes several telescopic units, and every telescopic unit all includes first connecting rod and second connecting rod, and first connecting rod and second connecting rod are set up on articulated shaft, and the connecting end of first connecting rod and second connecting rod of every adjacent telescopic unit is articulated with each other, and one end of first connecting rod and second connecting rod is installed on the articulated shaft of limit support plate.
[0014] (Three) beneficial effects
[0015] Compared with the prior art, the utility model provides a kind of comb tooth plate expansion joint anti -trap device, with following beneficial effects:
[0016] The comb tooth plate expansion device is installed with anti -fall device in the comb tooth gap between fixed comb tooth plate and movable comb tooth plate, to effectively prevent the wheel of motorcycle and non-motor vehicle from falling into comb tooth gap, and anti -fall device can make synchronous telescopic motion in comb tooth gap along with the telescopic motion of movable comb tooth plate relative to fixed comb tooth plate, without affecting the normal telescoping of comb tooth plate. DRAWINGS
[0017] Figure 1 Normal displacement anti -trap function comb tooth plate expansion device elevation view
[0018] Figure 2 The plan view of the comb plate telescopic device with normal displacement anti-trapping function;
[0019] Figure 3 The sectional view of the comb plate telescopic device with anti-trapping function;
[0020] Figure 4 The elevation view of the anti-trapping device;
[0021] Figure 5 The plan view of the anti-trapping device;
[0022] Figure 6 The three-dimensional view of the anti-trapping device;
[0023] Figure 7 The three-dimensional view of the support plate;
[0024] Figure 8 The three-dimensional view of the first connecting plate;
[0025] Figure 9 The three-dimensional view of the second connecting plate;
[0026] Figure 10 The elevation view of the comb plate telescopic device with maximum displacement anti-trapping function;
[0027] Figure 11 The plan view of the comb plate telescopic device with maximum displacement anti-trapping function;
[0028] Figure 12 The plan view of the comb plate telescopic device with minimum displacement anti-trapping function;
[0029] Figure 13 The plan view of the comb plate telescopic device with minimum displacement anti-trapping function.
[0030] In the figure: 1, fixed comb plate; 2, movable comb plate; 3, comb gap; 4, first anti-trapping device; 5, second anti-trapping device; 6, anti-trapping support plate; 7, limit link mechanism; 8, first connecting plate; 9, second connecting plate; 10, first guide sliding groove; 11, second guide sliding groove; 12, telescopic unit; 13, first connecting rod; 14, second connecting rod; 15, hinged shaft. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0032] Referring to Figures 1-3 The fixed comb plate and the movable comb plate are characterized in that: a comb gap is arranged between the head of the movable comb plate and the root of the fixed comb plate, the fixed comb plate and the movable comb plate are both provided with a comb gap, a first guide sliding groove is opened on the side surface of the movable comb plate of the comb gap, a first anti-falling device and a second anti-falling device are arranged in the comb gap, the anti-falling device comprises an anti-falling support plate, a limiting connecting rod mechanism, a first connecting plate and a second connecting plate, the first anti-falling device and the second anti-falling device both comprise an anti-falling support plate and a limiting connecting rod mechanism, the limiting connecting rod mechanism comprises a plurality of telescopic units, each telescopic unit comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are arranged on a hinge shaft, the connecting end portions of the first connecting rod and the second connecting rod of each adjacent telescopic unit are hingedly connected to each other, the other ends of the first connecting rod and the second connecting rod are installed on the hinge shaft of the limiting support plate, the anti-falling support plates are spaced apart along the length direction of the comb gap, and the two ends of the anti-falling support plate are arranged in the corresponding guide sliding grooves respectively, one end of the first anti-falling device is connected to the fixed comb plate, the other end of the first anti-falling device is connected to the movable comb plate, one end of the second anti-falling device is connected to the movable comb plate, and the other end of the second anti-falling device is connected to the fixed comb plate.
[0033] The first end of the first anti-falling device is fixed on the head of the fixed comb plate through the first connecting plate, and the second end of the first anti-falling device is fixed on the root of the movable comb plate through the second connecting plate.
[0034] The first end of the first anti-falling device is fixed on the head of the fixed comb plate through the first connecting plate, and the second end of the first anti-falling device is fixed on the root of the movable comb plate through the second connecting plate.
[0035] In order to guide the movement of the first anti-falling device, a guide sliding groove for guiding the telescopic movement of the first anti-falling device is opened on the side surface of the movable comb plate on both sides of the comb gap.
[0036] In order to guide the movement of the second anti-falling device, a guide sliding groove for guiding the telescopic movement of the second anti-falling device is opened on the side surface of the fixed comb plate on both sides of the comb gap.
[0037] In order to make the telescopic device have better anti-falling effect, the anti-falling device comprises an anti-falling support plate and a limiting connecting rod mechanism, the anti-falling support plates are spaced apart along the length direction of the comb gap, and the two ends of the anti-falling support plate are arranged in the corresponding guide sliding grooves respectively.
[0038] Further preferably, the limiting linkage mechanism comprises a plurality of telescopic units sequentially and adjacently connected to each other, each telescopic unit comprising a first linkage rod and a second linkage rod which are crossed with each other and rotate around a hinge shaft at a crossing point, one end of the first linkage rod and the second linkage rod being mounted on the hinge shaft, the end of the first linkage rod and the second linkage rod of adjacent telescopic units being hingedly connected to each other, the other end of the first linkage rod and the second linkage rod being mounted on the hinge shaft of the limiting support plate.
[0039] In order to better illustrate the embodiments, some components in the drawings can be omitted, enlarged or reduced, and do not represent the actual product size.
[0040] In addition, unless otherwise defined and limited, the technical terms or scientific terms used in the description of the present application should be understood as the general meanings understood by the ordinary skilled person in the field to which the present application belongs. The words such as "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer" and the like used in the description of the present application only indicate relative directions or positional relationships, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and the relative positional relationship may also change accordingly when the absolute position of the described object changes, therefore it cannot be understood as a limitation on the present application. The "first", "second", "third" and the like used in the description of the present application are only for the purpose of description, to distinguish different components, and cannot be understood as indicating or implying relative importance. The "one", "an" or "the" and the like used in the description of the present application should not be understood as an absolute limitation on the quantity, but should be understood as the existence of at least one. The "including" or "containing" and the like used in the description of the present application means that the elements or objects appearing before the word are encompassed by the elements or objects listed after the word and their equivalents, without excluding other elements or objects.
[0041] In addition, it also needs to be explained that, unless otherwise explicitly specified and limited, the "mounting", "connection", "connection" and the like used in the description of the present application should be understood in a broad sense, for example, the connection can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements, the skilled in the art can understand the specific meaning of the present application according to the specific circumstances.
[0042] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A device for preventing the sinking of a telescopic joint of a comb plate, comprising a fixed comb plate (1) and a movable comb plate (2), characterized in that: The head of the movable comb plate (2) and the root of the fixed comb plate (1) are provided with a comb gap (3), the fixed comb plate (1) and the movable comb plate (2) are provided with a comb gap (3), the comb gap (3) is provided with a first anti-trapping device (4) and a second anti-trapping device (5), one end of the first anti-trapping device (4) is connected with the fixed comb plate (1), the other end of the first anti-trapping device (4) is connected with the movable comb plate (2), one end of the second anti-trapping device (5) is connected with the movable comb plate (2), the other end of the second anti-trapping device (5) is connected with the fixed comb plate (1).
2. A comb plate expansion joint anti-trap device according to claim 1, characterised in that: The anti-trapping device comprises an anti-trapping support plate (6), a limiting connecting rod mechanism (7), a first connecting plate (8) and a second connecting plate (9).
3. A comb plate expansion joint anti-trap device according to claim 1, wherein: The side surface of the movable comb plate (2) of the comb gap (3) is provided with a first guide sliding groove (10).
4. A comb plate expansion joint anti-trap device according to claim 1, wherein: The side surface of the fixed comb plate (1) of the comb gap (3) is provided with a second guide sliding groove (11).
5. A comb plate expansion joint anti-trap device according to claim 2, wherein: The first anti-trapping device (4) and the second anti-trapping device (5) each comprise an anti-trapping support plate (6) and a limiting connecting rod mechanism (7), the anti-trapping support plates (6) are distributed along the length direction of the comb gap (3) at intervals, and the two ends of the anti-trapping support plate (6) are arranged in the corresponding guide sliding grooves.
6. A comb plate expansion joint anti-trap device according to claim 2, wherein: The limiting connecting rod mechanism (7) comprises a plurality of telescopic units (12), each telescopic unit (12) comprises a first connecting rod (13) and a second connecting rod (14), the first connecting rod (13) and the second connecting rod (14) are arranged on a hinge shaft (15), the connecting end portions of the first connecting rod (13) and the second connecting rod (14) of each adjacent telescopic unit (12) are hingedly connected with each other, and the other ends of the first connecting rod (13) and the second connecting rod (14) are installed on the hinge shaft (15) of the limiting support plate.