Connecting structure and ladder cage wall connecting piece device

Abstract

The utility model discloses a connecting structure and a ladder cage wall connecting piece device, and relates to the technical field of bridge construction, the connecting structure comprises a fixing piece, a locking piece and a plurality of limiting pieces, the fixing piece is hollow to form a fixing hole, the plurality of limiting pieces are connected to the peripheral side of the fixing piece in a sliding mode around the center axis of the fixing piece, and the locking piece is arranged on the limiting pieces. Each limiting piece can extend into or retreat from the corresponding fixing hole in a sliding mode. The locking piece is movably arranged on the fixing piece, and the locking piece can move relative to the fixing piece to limit sliding of the limiting piece. The fixing piece is used for providing installation positions for the multiple limiting pieces, during installation, the pier column can be sleeved with the fixing piece firstly, then the multiple limiting pieces slide to proper positions relative to the fixing piece according to the diameter of the pier column so that the multiple limiting pieces can abut against the surface of the pier column, and then the limiting pieces are locked through the locking pieces. And for pier columns with different diameters, the corresponding limiting pieces can slide, and the size of the space formed by the ends, close to each other, of the multiple limiting pieces is adjusted, so that the pier columns with different diameters can be installed conveniently.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a connection structure and a ladder cage wall-connecting device. Background Technology

[0002] When constructing bridge piers, ladder cages are required. The ladder cages are connected to clamps via wall ties, and the clamps are fixed to the piers with buckles, so that the ladder cages are fixedly installed on the piers, making it convenient for construction workers to carry out construction from the ladder cage platform.

[0003] Prior art, disclosed in publication number CN110043183A, is a wall-connecting device for a heavy-duty safety ladder cage on a bridge cylindrical pier, including a clamp; the clamp is provided with a connecting lug, which is connected to one end of a tie rod via connecting bolts; the other end of the tie rod is welded with an adjustable threaded rod, which is connected to a crossarm; the crossarm is connected to the safety ladder cage. This invention can improve the stability and connection quality of the heavy-duty safety ladder cage, facilitate construction operations, and save materials. This invention is applicable to the connection and fixation of heavy-duty safety ladder cages for access passages on various bridge cylindrical piers.

[0004] However, the existing ladder cage wall ties have shortcomings. For example, the size of its clamps is fixed and cannot be adjusted. It can only be installed on piers of a specific diameter. For piers of different diameters, clamps of the corresponding size need to be replaced, resulting in poor compatibility. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a connection structure and a ladder cage wall-connecting device to solve the technical problem that the size of the clamps in the existing ladder cage wall-connecting device is fixed and cannot be adjusted, and can only be installed on piers of a specific diameter. For piers of different diameters, clamps of the corresponding size need to be replaced, resulting in poor compatibility.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, this utility model provides a connection structure, comprising:

[0008] The fastener is hollow and has a fastening hole.

[0009] Multiple limiting members are slidably connected to the periphery of the fixing member around the central axis of the fixing member, and each limiting member can slide into or out of the fixing hole; and

[0010] A locking element is movably disposed on the fixing element, and the locking element is movable relative to the fixing element to restrict the sliding of the limiting element or to separate from the limiting element.

[0011] In some embodiments, the fixing member includes a first fixing ring and a second fixing ring, the second fixing ring being located inside the first fixing ring and forming the fixing hole, and each of the limiting members being slidably connected to the first fixing ring and the second fixing ring.

[0012] In some embodiments, both the first fixing ring and the second fixing ring are formed by two semi-circular rings that are detachably connected.

[0013] In some embodiments, the locking element is a tightening screw, which is threadedly connected to the first retaining ring and can press against or disengage from the limiting element when the thread rotates.

[0014] In some embodiments, the first retaining ring is threadedly connected to a plurality of the tightening screws, the plurality of tightening screws being distributed at intervals along the circumference of the first retaining ring, and each of the limiting members being provided corresponding to at least one of the tightening screws.

[0015] In some embodiments, the second retaining ring is threaded with a plurality of the tightening screws along its circumference, each of the tightening screws being able to press against or disengage from the corresponding limiting member when the thread rotates.

[0016] In some embodiments, the end face of the tightening screw that abuts against the limiting member has a rough first friction surface, and the side of the limiting member facing the tightening screw has a rough second friction surface, wherein the tightening screw can drive the first friction surface to contact the second friction surface when it abuts against the limiting member.

[0017] In some embodiments, the end face of the limiting member inserted into the fixing hole is arc-shaped.

[0018] Secondly, this utility model also provides a ladder cage wall-connecting device, including a support component and the above-mentioned connection structure. The support component includes a connector and a ladder cage, and the connector connects the fixing component and the ladder cage.

[0019] In some embodiments, the connecting member includes a first link and a second link, both of which are telescopic rods and are located on opposite sides of the fixing member. Both the first link and the second link are capable of adjusting the distance between the ladder cage and the fixing member during telescoping.

[0020] Compared with existing technologies, the connection structure provided by this utility model can be used in ladder cage wall ties. The connection structure includes a fixing member for fitting onto the bridge pier, so that the ladder cage connected to the fixing member is fixed on the pier, making it convenient for construction workers to work from within the ladder cage. The fixing member provides installation positions for multiple limiting members. During installation, the fixing member is first fitted onto the pier, and then, according to the diameter of the pier, the multiple limiting members are slid relative to the fixing member to a suitable position so that all the limiting members abut against the surface of the pier. Then, the locking member is used to lock the limiting members. For piers of different diameters, the corresponding limiting members can be slid to adjust the space formed by the multiple limiting members moving closer together, so as to accommodate the installation of piers of various diameters. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the ladder cage wall-connecting device provided in this embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the fixing component provided in an embodiment of the present utility model;

[0023] Figure 3 This is a structural schematic diagram of the fastener provided in an embodiment of the present utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] To address the technical problem that existing ladder cage wall tie devices have fixed and unadjustable clamp sizes, can only be installed on piers of specific diameters, and require clamps of corresponding sizes to be replaced for piers of different diameters, resulting in poor compatibility, this utility model provides a connection structure and ladder cage wall tie device that can be installed around bridge piers of different diameters, offering strong installation compatibility.

[0026] It should be noted that the connection structure described in this utility model is used in, but not limited to, ladder cage wall-connecting devices. For ease of explanation, this utility model only uses the application of the connection structure in a ladder cage wall-connecting device as an example. The principle of the connection structure applied to other types of devices is essentially the same as that applied to a ladder cage wall-connecting device, and will not be described in detail here.

[0027] Please see Figure 1 and Figure 2 , Figure 1This is a schematic diagram of the ladder cage wall-connecting device in one embodiment of the present invention. The ladder cage wall-connecting device includes a connecting structure 1 and a supporting assembly 2. The connecting structure 1 includes a fixing member 11, a locking member, and multiple limiting members 12. The fixing member 11 is hollow and has a fixing hole 111. The multiple limiting members 12 are slidably connected to the fixing member 11 around its periphery, and each limiting member 12 can slide into the fixing hole 111. The locking member is movably disposed on the fixing member 11 and can lock or disengage from the limiting member 12 when moving relative to the fixing member 11. When the limiting member 12 is locked, it is not easy for the limiting member 12 to slide relative to the fixing member 11, which allows the connecting structure 1 to be installed more stably on the pier. The supporting assembly 2 includes a connecting member 21 and a ladder cage 22. The connecting member 21 connects the fixing member 11 and the ladder cage 22.

[0028] In this embodiment, the main function of the fixing member 11 is to provide a connecting platform for the multiple limiting members 12, so that the multiple limiting members 12 can hug the bridge piers when sliding, thereby allowing the ladder cage wall-connecting device to be installed on the piers. The multiple limiting members 12 are evenly arranged around the periphery of the fixing member 11, and the ends of the multiple limiting members 12 that are close to each other can enclose and form an enclosing space 13. When the multiple limiting members 12 slide close to each other simultaneously, the size of the enclosing space 13 gradually decreases to facilitate hugging piers with smaller diameters. When the multiple limiting members 12 slide away from each other simultaneously, the size of the enclosing space 13 gradually increases to facilitate hugging piers with larger diameters. Therefore, by sliding the multiple limiting members 12 to change the size of the enclosing space 13, it is possible to hug and fix it to piers of different diameters, demonstrating strong compatibility.

[0029] Multiple limiting members 12 can slide simultaneously or only a portion of them can slide, so that the shape of the encircling space 13 formed by the multiple limiting members 12 can be varied, so as to be fixed on piers of various shapes, and even irregular piers.

[0030] In some embodiments, please refer to Figure 3 The fixing member 11 includes a first fixing ring 112 and a second fixing ring 113. The second fixing ring 113 is located inside the first fixing ring 112 and forms the aforementioned fixing hole 111. Each limiting member 12 is slidably connected to the first fixing ring 112 and the second fixing ring 113. In this embodiment, the first fixing ring 112 and the second fixing ring 113 have a certain interval so that the limiting member 12 can remain stable after simultaneously passing through the first fixing ring 112 and the second fixing ring 113. In other embodiments, the number of fixing rings is not limited; for example, three or more can be provided. The more fixing rings there are, the more stable the limiting member 12 will be after simultaneously sliding through multiple fixing rings, and it will not easily fall off during use.

[0031] In some embodiments, please refer to Figure 1Both the first fixing ring 112 and the second fixing ring 113 are formed by detachably connecting two semicircular rings. In this embodiment, one end of each of the two semicircular rings in the first fixing ring 112 and the second fixing ring 113 is rotatably connected, and the other end can extend to provide a boss 114. The boss 114 can be used for screws. When the two semicircular rings are closed, the two bosses 114 can be locked by screws to lock the two semicircular rings. During construction, the two semicircular rings can be unlocked first to open them, inserted into the pier, and then locked. The installation can be completed by manipulating the multiple limiting members 12 to slide against the pier. Setting the first fixing ring 112 and the second fixing ring 113 as two openable and closable semicircular ring structures makes it quick and convenient to detach and install the fixing member 11 from the pier.

[0032] In some embodiments, please refer to Figure 3 The locking element is a tightening screw 14, which is threadedly connected to the first fixing ring 112 and can press against or disengage from the limiting element 12 when the thread rotates. In this embodiment, when it is necessary to lock the limiting element 12, the tightening screw 14 can be rotated to press against the limiting element 12, thereby restricting the sliding of the limiting element 12 relative to the first fixing ring 112 and locking the limiting element 12. This can prevent the limiting element 12 from sliding relative to the first fixing ring 112 during construction and causing safety accidents. In other embodiments, the locking element can also be a locking strip. In this embodiment, multiple spaced locking holes can be opened along the length of the limiting element 12, and the locking strip can be slidably inserted into the locking holes to lock the limiting element 12.

[0033] Furthermore, the first fixing ring 112 is threaded with multiple tightening screws 4 along its circumference. Each tightening screw 4 can press against or disengage from its corresponding limiting member 12 when the thread rotates. In this embodiment, the number of tightening screws 4 is the same as the number of limiting members 12. Multiple tightening screws 4 are correspondingly set with multiple limiting members 12, so that each tightening screw 4 can control the corresponding limiting member 12 to lock or unlock, realizing fixed-point control. In actual operation, all limiting members 12 can abut against the pier, or only a portion of the limiting members 12 can abut against the pier. Therefore, it is only necessary to operate the tightening screws 4 corresponding to the portion of the limiting members 12 that abut against the pier.

[0034] In some embodiments, please refer to Figure 3 The second fixing ring 113 is threaded with multiple tightening screws 4 along its circumference. Each tightening screw 4 can press against or disengage from the corresponding limiting member 12 when the thread rotates. In this embodiment, a limiting member 12 can be locked or unlocked by the first fixing ring 112 and the tightening screws 4 on the second fixing ring 113. It can be understood that a limiting member 12 is locked by two tightening screws 4, which helps to further enhance the stability of the limiting member 12 after it is locked.

[0035] In some embodiments, the end face of the tightening screw 4 that abuts against the limiting member 12 has a rough first friction surface (not shown in the figure), and the side of the limiting member 12 facing the tightening screw 4 has a rough second friction surface. When the tightening screw 4 abuts against the limiting member, it can drive the first friction surface to contact the second friction surface. In this embodiment, the first friction surface of the tightening screw 4 and the second friction surface of the limiting member 12 can be achieved by installing pads with friction surfaces, such as sandpaper, on the end faces of both the tightening screw 4 and the limiting member 2. This allows for greater friction between the two when the tightening screw 4 abuts against the limiting member 2, making it less prone to relative slippage and improving the stability of the locking of the limiting member 12.

[0036] In some embodiments, the end face of the limiting member 12 located in the fixing hole 111 is arc-shaped. In this embodiment, the curvature of the end face of the limiting member 12 can be set to be consistent with the curvature of the pier surface, so that the end face of the limiting member 12 can be completely fitted with the pier surface when it abuts against the pier surface, the contact area between the limiting member 12 and the pier surface is large, and the connection between the two is more stable.

[0037] In some embodiments, please refer to Figure 1 The connecting member 21 includes a first connecting rod 211 and a second connecting rod 212, which are respectively located on both sides of the fixing member 11. Both ends of the first connecting rod 211 and the second connecting rod 212 are connected to the fixing member 11 and the ladder cage 22, respectively. In this embodiment, the ladder cage 22 is connected to both sides of the fixing member 11 via the first connecting rod 211 and the second connecting rod 212, making the connection between the ladder cage 22 and the fixing member 11 more stable. Furthermore, one end of the first connecting rod 211 and the second connecting rod 212 is respectively connected to the two semicircular rings of the first fixing ring 112. Specifically, both semicircular rings have protruding flanges 15. One end of the first connecting rod 211 and the second connecting rod 212 can be rotatably connected to the two flanges 15, and the other ends of the first connecting rod 211 and the second connecting rod 212 are rotatably connected to the ladder cage 22, so that the two semicircular rings of the first fixing ring 112 can rotate smoothly when the first fixing ring 112 is installed or removed.

[0038] In some embodiments, please refer to Figure 1 Both the first link 211 and the second link 212 are telescopic rods, and both can adjust the distance between the ladder cage 22 and the fixing member 11 during extension and retraction. In this embodiment, by setting the first link 211 and the second link 212 as telescopic rods, the distance between the ladder cage 22 and the fixing member 11 can be adjusted by controlling the extension and retraction of the two links. Since construction workers usually work in the ladder cage 22, the distance between the construction workers and the pier can be adjusted to allow the construction workers to work flexibly.

[0039] To better understand this utility model, the following is combined with... Figures 1 to 3The technical solution of this utility model is described in detail below:

[0040] The ladder cage wall-connecting device provided by this utility model has a connecting structure 1 for fitting onto bridge piers, so that the ladder cage 22 is fixed to the pier by the fixing member 11, making it convenient for construction personnel to work from the ladder cage 22. The fixing member 11 provides installation positions for multiple limiting members 12. During installation, the fixing member 11 can be fitted onto the pier first, and then the multiple limiting members 12 can be slid relative to the fixing member 11 according to the diameter of the pier, so that the multiple limiting members 12 all abut against the surface of the pier. For piers of different diameters, the corresponding limiting members 12 can be slid to adjust the size of the space formed by the multiple limiting members 12 moving closer together, so as to accommodate the installation of piers of various diameters.

[0041] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A connection structure, characterized in that, include: The fastener is hollow and has a fastening hole. Multiple limiting members are slidably connected to the periphery of the fixing member around the central axis of the fixing member, and each of the limiting members can slide into or out of the fixing hole. and A locking element is movably disposed on the fixing element, and the locking element is movable relative to the fixing element to restrict the sliding of the limiting element or to separate from the limiting element.

2. The connection structure according to claim 1, characterized in that, The fixing member includes a first fixing ring and a second fixing ring, the second fixing ring being located inside the first fixing ring and forming the fixing hole, and each of the limiting members is slidably connected to the first fixing ring and the second fixing ring.

3. The connection structure according to claim 2, characterized in that, Both the first fixing ring and the second fixing ring are formed by two semi-circular rings that are detachably connected.

4. The connection structure according to claim 2, characterized in that, The locking component is a tightening screw, which is threadedly connected to the first fixing ring and can press against or disengage from the limiting component when the thread rotates.

5. The connection structure according to claim 4, characterized in that, The first fixing ring is threadedly connected with a plurality of tightening screws, which are distributed at intervals along the circumference of the first fixing ring, and each limiting member is provided with at least one tightening screw.

6. The connection structure according to claim 5, characterized in that, The second fixing ring is threaded with a plurality of the aforementioned tightening screws along its circumference, and each of the aforementioned tightening screws can press against or disengage from the limiting member when the thread rotates.

7. The connection structure according to any one of claims 4-6, characterized in that, The end face of the tightening screw that presses against the limiting member has a rough first friction surface, and the side of the limiting member facing the tightening screw has a rough second friction surface. When the tightening screw presses against the limiting member, it can drive the first friction surface to contact the second friction surface.

8. The connection structure according to claim 1, characterized in that, The end face of the limiting member inserted into the fixing hole is arc-shaped.

9. A ladder cage wall-connecting device, comprising a support assembly and a connection structure as described in any one of claims 1-8, wherein the support assembly includes a connector and a ladder cage, and the connector connects the fixing member and the ladder cage.

10. The ladder cage wall-connecting device according to claim 9, characterized in that, The connecting component includes a first link and a second link. Both the first link and the second link are telescopic rods and are located on both sides of the fixing component. Both the first link and the second link can adjust the distance between the ladder cage and the fixing component during telescopic movement.

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