Expansion joint blocking and connecting device of concrete isolation pier
By using the expansion joint retaining device of prefabricated plates, connecting structures and fasteners on the concrete isolation piers, the problem of restricted installation of expansion screws in the prior art is solved, and the installation and protection of the expansion joint retaining plates of all concrete isolation piers is achieved, ensuring the stability and safety of the equipment.
Patent Information
- Application Number
- CN202223457701.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-23
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2032-12-23
AI Technical Summary
The existing concrete isolation pier expansion joint baffles are limited due to the installation conditions of expansion screws, which cannot meet the installation needs of all concrete isolation piers, and are prone to extrusion and cracking due to the entry of hard objects.
The expansion joint barrier device including prefabricated plates, connecting structures and fasteners is adopted. The prefabricated plates are embedded on the concrete isolation pier. The connecting structure is evenly distributed along the prefabricated plates and is connected to the connecting structure through the fasteners to achieve stable installation and protection of the expansion joint barrier.
The device can install expansion joint baffles on concrete isolation piers with different concrete mix ratios to meet all installation needs, ensure continuous barriers of expansion joints, and avoid extrusion and cracking caused by hard objects entering and expanding and contracting.
Smart Images
Figure CN222923659U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of isolation piers, in particular to an expansion joint blocking device for a concrete isolation pier. Background Art
[0002] Concrete isolation piers are commonly used isolation structures at the edges or in the middle of roads and bridges. Concrete isolation piers are most commonly made of concrete materials and have an isolation function. Because concrete isolation piers are directly set on the surface of roads and bridges, they are exposed to the external environment for a long time and are directly exposed to sunlight, which causes temperature differences in the concrete isolation piers between morning and evening, or between seasons. Due to thermal expansion and contraction, concrete isolation piers made of concrete are prone to deformation. Therefore, when placing concrete isolation piers, expansion joints must be reserved between them to prevent the concrete isolation piers from stretching due to thermal expansion and causing mutual squeezing and cracking.
[0003] However, when hard objects (such as stones and other foreign objects) are thrown into the expansion joints by passing vehicles or when the road is being cleaned, the functionality of the expansion joints will be reduced. When the concrete isolation piers expand and stretch due to heat, the expansion joints between each other will still be squeezed and cracked due to the entry of hard objects. The existing solution is to install expansion joint baffles on the concrete isolation piers to block the expansion joints through the expansion joint baffles to prevent the hard objects from entering the expansion joints. The expansion joint baffles are installed in such a way that the expansion joint baffles are provided with long holes, and the expansion screws are passed through the long holes and are tightly connected with the mounting holes provided on the concrete isolation piers. When the concrete isolation piers are extended by heat or shortened by cold, the fasteners can slide in the long holes to ensure that the expansion joint baffles continue to block the expansion joints.
[0004] Although this installation method of the expansion joint baffle is not affected by deformation and can achieve the purpose of continuous protection of the expansion joint, the concrete mix ratio of the concrete isolation pier is different. The method of connecting with expansion screws requires the concrete mix ratio to reach more than 85%. Otherwise, it is easy for the expansion screw connection to be loose, or the concrete isolation pier to crack due to the tightening of the expansion screw. Therefore, this installation method cannot meet the installation requirements of all concrete isolation piers.
[0005] Based on this, there is an urgent need for an expansion joint blocking device for a concrete isolation pier that can meet all concrete isolation pier installation requirements. Utility Model Content
[0006] The purpose of the utility model is to provide an expansion joint retaining device for a concrete isolation pier that can meet all concrete isolation pier installation requirements, so as to solve the problem that the expansion joint retaining plate in the above-mentioned background technology is restricted in installation due to the installation conditions of the expansion screws.
[0007] To achieve the above object, the present utility model provides the following technical solutions: A telescopic joint blocking device for a concrete isolation pier, including a telescopic joint baffle, and further including a precast slab, a connection structure, and a fastener; the precast slab is used for being embedded in the concrete isolation pier during use; the precast slab is provided with a connection structure, the telescopic joint baffle is used for covering the telescopic joint between adjacent concrete isolation piers during use, the telescopic joint baffle is provided with a long hole corresponding to the position of the connection structure, and the fastener passes through the long hole and is connected and assembled with the connection structure.
[0008] Further, the connection structures are uniformly distributed along the precast slab.
[0009] Further, the connection structure is a screw hole.
[0010] Further, the connection structure includes a through hole and an internal thread sleeve. The precast slab is provided with a through hole, and the internal thread sleeve is fixedly installed in the through hole and is embedded in the concrete isolation pier.
[0011] Further, one end of the internal thread sleeve away from the concrete isolation pier is an open structure, and one end of the internal thread sleeve close to the concrete isolation pier is a closed structure.
[0012] Further, the precast slab is embedded in one end or both ends of the concrete isolation pier.
[0013] Further, the precast slab is located on one side or both sides of the concrete isolation pier.
[0014] Further, a cross beam is fixedly installed on the precast slab, and the cross beam is embedded in the concrete isolation pier.
[0015] Further, the cross beam is horizontally arranged.
[0016] Further, a vertical beam is fixedly installed on the cross beam, and the vertical beam is embedded in the concrete isolation pier.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the telescopic joint blocking device of the concrete isolation pier, through the cooperation of structures such as the precast slab, the connection structure, and the fastener precast or later installed on the concrete isolation pier, the telescopic joint baffle can be installed on the concrete isolation piers with different concrete mix ratios, meeting the installation requirements of all concrete isolation piers, continuously blocking the telescopic joint, without considering the installation conditions of expansion screws, and having flexible and reliable installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is the main structural schematic front view of an implementation manner in Embodiment 1 of the present utility model;
[0019] Figure 2 It is the main structural schematic front view of an implementation manner in Embodiment 1 of the present utility model after removing the telescopic joint baffle;
[0020] Figure 3 is Figure 1 a schematic sectional view showing the structure in the A-A direction in
[0021] Figure 4 a schematic front view showing another implementation manner in Embodiment 1 of the present utility model;
[0022] Figure 5 a schematic front view showing another implementation manner in Embodiment 1 of the present utility model after removing the expansion joint baffle;
[0023] Figure 6 is Figure 4 a schematic sectional view showing the structure in the B-B direction in
[0024] Figure 7 a schematic front view showing an implementation manner in Embodiment 2 of the present utility model;
[0025] Figure 8 a schematic front view showing an implementation manner in Embodiment 2 of the present utility model after removing the expansion joint baffle;
[0026] Figure 9 is Figure 7 a schematic sectional view showing the structure in the C-C direction in
[0027] Figure 10 a schematic front view showing another implementation manner in Embodiment 2 of the present utility model;
[0028] Figure 11 a schematic front view showing another implementation manner in Embodiment 2 of the present utility model after removing the expansion joint baffle;
[0029] Figure 12 is Figure 9 a schematic sectional view showing the structure in the D-D direction in
[0030] In the figure: 1 concrete isolation pier, 2 expansion joint baffle, 3 long strip hole, 4 fastener, 5 precast slab, 6 screw hole, 7 internal thread sleeve, 8 cross beam, 9 vertical beam, 10 expansion joint. Specific implementation manners
[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0032] Embodiment 1
[0033] Please refer to Figures 1 to 6 As shown, the present utility model provides a technical solution: a telescopic joint blocking device for a concrete isolation pier, including a telescopic joint baffle 2, and further including a precast slab 5, a connection structure, and a fastener 4; the shape of the telescopic joint baffle 2 conforms to the outer shape of the concrete isolation pier 1, and it can be integrally bent according to the manufacturing conditions, or can be bent in two parts and then welded into a whole; the precast slab 5 is also set into a shape that conforms to the outer shape of the concrete isolation pier 1 according to the installation position.
[0034] The precast slab 5 is used for being embedded in the concrete isolation pier 1 during use; the precast slab 5 is provided with a connection structure, the top of the telescopic joint baffle 2 is closed and both ends and the bottom are open, and the telescopic joint baffle 2 is used for covering the telescopic joint 10 between adjacent concrete isolation piers 1 during use; a long strip hole 3 corresponding to the position of the connection structure is opened on the telescopic joint baffle 2, and the fastener 4 passes through the long strip hole 3 and is connected and assembled with the connection structure. The fastener 4 mainly includes a gasket and a screw, and the gasket is sleeved on the screw. When the concrete isolation pier 1 drives the precast slab 5, the connection structure, and the connected fastener 4 to displace, the fastener 4 can move in the long strip hole 3. No matter how the telescopic joint 10 changes, the telescopic joint baffle 2 will block the telescopic joint 10.
[0035] The connection structures are evenly distributed along the precast slab 5. When there is 1 connection structure, it is located at the center position of the precast slab 5; when there are more than 1 connection structures, they are evenly distributed at equal intervals in the vertical direction along the precast slab 5.
[0036] The form of the connection structure:
[0037] Form 1, the connection structure is a screw hole 6. During use, the screw passes through the long strip hole 3 and is screwed and assembled with the screw hole 6, and there should be a gap (at least 1 mm) between the nut of the screw and the telescopic joint baffle 2. The function of the gap is to prevent over-screwing of the screw and pressing the telescopic joint baffle 2 on the concrete isolation pier 1 to hinder relative movement;
[0038] Form 2, the connection structure includes a through hole and an internal thread sleeve 7. The precast slab 5 is provided with a through hole, and the internal thread sleeve 7 is fixedly installed in the through hole. The internal thread sleeve 7 is embedded in the concrete isolation pier 1. One end of the internal thread sleeve 7 away from the concrete isolation pier 1 is an open structure, and one end of the internal thread sleeve 7 close to the concrete isolation pier 1 is a closed structure. During use, the screw passes through the long strip hole 3 and is screwed and assembled with the internal thread sleeve 7. When the screw is screwed until it contacts the closed structure end of the internal thread sleeve 7, there is exactly the designed gap distance between the nut of the screw and the telescopic joint baffle 2; the function of the gap is to prevent over-screwing of the screw and pressing the telescopic joint baffle 2 on the concrete isolation pier 1 to hinder relative movement.
[0039] The installation method of the precast slab 5:
[0040] Installation method 1, such asFigure 1 , Figure 2 , Figure 3 As shown in Figure 3 , the precast slab 5 is embedded at the same end of each concrete isolation pier 1, and the precast slab 5 is located on one side (front side or rear side) of the concrete isolation pier 1, or the precast slab 5 is located on both sides (front side and rear side) of the concrete isolation pier 1.
[0041] Installation method 2, as Figure 4 , Figure 5 , Figure 6 As shown in Figure 6 , the precast slab 5 is embedded at both ends of the concrete isolation pier 1, and the precast slab 5 is located on one side (front side or rear side) of the concrete isolation pier 1, or the precast slab 5 is located on both sides (front side and rear side) of the concrete isolation pier 1.
[0042] In the above two installation methods, as Figure 1 and Figure 2 shown, the method of installing the precast slab 5 at one end of the concrete isolation pier 1 is adopted. One of the adjacent two concrete isolation piers 1 is directly slidably assembled with the expansion joint baffle 2, and the other of the adjacent two concrete isolation piers 1 is slidably assembled by the method of passing the fastener 4 through the long hole and then connecting with the connecting structure on the precast slab 5.
[0043] As Figure 4 and Figure 5 shown, it is preferable to embed the precast slab 5 at both ends of the concrete isolation pier 1 and install the precast slab 5 on both sides. The fastener 4 connected through the connecting structure can support the expansion joint baffle 2 more stably on both sides, and both adjacent concrete isolation piers 1 are slidably assembled by the method of passing the fastener 4 through the long hole and then connecting with the connecting structure on the precast slab 5.
[0044] The specific application method of this embodiment is:
[0045] By selecting the form of the connecting structure and the installation method of the precast slab 5, use tools to dig out a groove on the concrete isolation pier 1 that can install the precast slab 5, and then bond the precast slab 5 in the groove with a bonding material (concrete) so that the surface of the precast slab 5 is flush with the surface of the concrete isolation pier 1; cover the expansion joint baffle 2 on the expansion joint 10 of the adjacent concrete isolation piers 1 and install the expansion joint baffle 2 through the connection of the fastener 4 and the connecting structure; when the expansion joint 10 changes, the concrete isolation pier 1 drives the fastener 4 to move in the long hole through the precast slab 5 to compensate for the change amount, and the expansion joint baffle 2 can always ensure that the expansion joint 10 is blocked.
[0046] Embodiment 2
[0047] Please refer to Figures 7 to 12, the present utility model provides another technical solution: a telescopic joint blocking device for a concrete isolation pier. This embodiment includes all the technical features of Embodiment 1, and the additional features are as follows: a cross beam 8 is fixedly installed on the precast slab 5, and the cross beam 8 is horizontally arranged. Further, a vertical beam 9 is fixedly installed on the cross beam 8, and both the cross beam 8 and the vertical beam 9 are embedded in the concrete isolation pier 1 to enhance the connection firmness between the precast slab 5 and the concrete isolation pier 1.
[0048] Installation method of the precast slab 5 with a cross beam 8 and a vertical beam 9:
[0049] Installation method 1, as shown in Figure 7 , Figure 8 , Figure 9 , the precast slab 5 with a cross beam 8 and a vertical beam 9 is embedded at the same end of each concrete isolation pier 1, and the precast slab 5 with a cross beam 8 and a vertical beam 9 is located on one side (front side or rear side) of the concrete isolation pier 1, or the precast slab 5 is located on both sides (front side and rear side) of the concrete isolation pier 1, and the precast slabs 5 on both sides are fixedly connected by the cross beam 8 and the vertical beam 9.
[0050] Installation method 2, as shown in Figure 10 , Figure 11 , Figure 12 , the precast slab 5 with a cross beam 8 and a vertical beam 9 is embedded at both ends of the concrete isolation pier 1, and the precast slab 5 with a cross beam 8 and a vertical beam 9 is located on one side (front side or rear side) of the concrete isolation pier 1, or the precast slab 5 is located on both sides (front side and rear side) of the concrete isolation pier 1, and the precast slabs 5 on both sides are fixedly connected by the cross beam 8 and the vertical beam 9.
[0051] In the above two installation methods, as described in Figure 7 and Figure 8 , for the method of installing the precast slab 5 with a cross beam 8 and a vertical beam 9 on one side, one of the adjacent two concrete isolation piers 1 is directly slidably assembled with the expansion joint baffle 2, and the other of the adjacent two concrete isolation piers 1 is slidably assembled by passing a fastener 4 through a long hole and then connecting to the connection structure on the precast slab 5.
[0052] As shown in Figure 10 and Figure 11 , it is preferred that the precast slab 5 with a cross beam 8 and a vertical beam 9 is embedded at both ends of the concrete isolation pier 1, and the precast slabs 5 are installed on both sides. The precast slabs 5 on both sides are fixedly connected by the cross beam 8 and the vertical beam 9. The fastener 4 connected through the connection structure can support the expansion joint baffle 2 more stably on both sides, and both adjacent concrete isolation piers 1 are slidably assembled by passing a fastener 4 through a long hole and then connecting to the connection structure on the precast slab 5.
[0053] The specific application method of this embodiment is:
[0054] By means of the form of the selected connection structure and the installation method of the precast slab 5 with the cross beam 8 and the vertical beam 9, the precast slab 5 with the cross beam 8 and the vertical beam 9 is first placed in the concrete isolation pier mold, and then the concrete isolation pier 1 is poured. After the concrete isolation pier 1 solidifies, the cross beam 8, the vertical beam 9 and the precast slab 5 can be embedded and fixed to form an integral body. When in use, the expansion joint baffle 2 is then sleeved on the expansion joint 10 of the adjacent concrete isolation piers 1, and the expansion joint baffle 2 is installed by connecting with the connection structure through the fastener 4. When the expansion joint 10 changes, the concrete isolation pier 1 drives the fastener 4 to move in the long hole through the precast slab 5 to compensate for the change amount, and the expansion joint baffle 2 can always ensure that the expansion joint 10 is blocked.
[0055] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0056] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A telescopic joint blocking device for a concrete isolation pier, comprising a telescopic joint baffle (2). Characterized in that: It further includes a precast slab (5), a connecting structure and a fastener (4); the precast slab (5) is used for being embedded on the concrete isolation pier (1) during use; the precast slab (5) is provided with a connecting structure, the telescopic joint baffle (2) is used for covering the telescopic joint (10) between adjacent concrete isolation piers (1) during use, a long strip hole (3) corresponding to the position of the connecting structure is opened on the telescopic joint baffle (2), and the fastener (4) passes through the long strip hole (3) and is connected and assembled with the connecting structure.
2. The telescopic joint blocking device for a concrete isolation pier according to claim 1. Characterized in that: The connecting structures are uniformly distributed along the precast slab (5).
3. The telescopic joint blocking device for a concrete isolation pier according to claim 2. Characterized in that: The connecting structure is a screw hole (6).
4. The telescopic joint blocking device for a concrete isolation pier according to claim 2. Characterized in that: The connecting structure includes a through hole and an internal thread sleeve (7), the precast slab (5) is provided with a through hole, an internal thread sleeve (7) is fixedly installed in the through hole, and the internal thread sleeve (7) is embedded in the concrete isolation pier (1).
5. The telescopic joint blocking device for a concrete isolation pier according to claim 4. Characterized in that: One end of the internal thread sleeve (7) away from the concrete isolation pier (1) is an open structure, and one end of the internal thread sleeve (7) close to the concrete isolation pier (1) is a closed structure.
6. The telescopic joint blocking device for a concrete isolation pier according to claim 1. Characterized in that: The precast slab (5) is embedded at one end or both ends of the concrete isolation pier (1).
7. The telescopic joint blocking device for a concrete isolation pier according to claim 6. Characterized in that: The precast slab (5) is located on one side or both sides of the concrete isolation pier (1).
8. The telescopic joint blocking device for a concrete isolation pier according to claim 7. Characterized in that: A cross beam (8) is fixedly installed on the precast slab (5), and the cross beam (8) is embedded in the concrete isolation pier (1).
9. The telescopic joint blocking device for a concrete isolation pier according to claim 8. Characterized in that: The cross beam (8) is horizontally arranged.
10. The telescopic joint blocking device for a concrete isolation pier according to claim 9. Characterized in that: A vertical beam (9) is fixedly installed on the cross beam (8), and the vertical beam (9) is embedded in the concrete isolation pier (1).