Anti-deformation floor deformation joint cover plate made of rigid material

Abstract

The utility model discloses an anti-deformation floor deformation joint cover plate made of rigid materials, which comprises a deformation joint cover plate erected between two building bodies, and the deformation joint cover plate comprises a fixed plate, a tooth-shaped plate and a movable plate; the fixing plate is symmetrically designed and fixed to a building through fixing bolts, a slope is arranged at one end of the fixing plate, a sliding groove is formed in the other end of the fixing plate in a downward extending mode, and tooth-shaped grooves equal in interval and length are formed in the middle of the fixing plate. The tooth-shaped plate is symmetrically designed, one end of the tooth-shaped plate is a tooth-shaped end matched with the middle part of the fixed plate, and the other end of the tooth-shaped plate is a connecting section connected with the movable plate; the movable plate is in the middle plane design, the two ends of the movable plate extend downwards to be provided with sliding ends and are arranged in the sliding grooves in a sliding mode, and grooves used in cooperation with the connecting sections are formed in the connecting positions of the plane and the sliding ends. Through the arrangement of the fixed plate, the tooth-shaped plate and the movable plate, under the bearing condition, the function of adapting to deformation joint changes is achieved, and deformation and damage of the cover plate are prevented.

Description

Technical Field

[0001] This utility model belongs to the field of building application equipment, specifically relating to a rigid material anti-deformation floor expansion joint cover. Technical Background

[0002] Expansion joints are structural joints designed to accommodate deformations in building structures caused by factors such as temperature changes, uneven foundation settlement, and earthquakes. The main functions of expansion joints include:

[0003] Temperature changes: Materials expand and contract with temperature changes. Expansion joints allow the structure to expand and contract freely, preventing cracking or deformation.

[0004] Foundation settlement: Different parts of a building may experience uneven settlement due to different foundation conditions. Expansion joints can reduce the stress concentration caused by this and prevent structural damage.

[0005] Earthquake effects: During an earthquake, different parts of a building may experience different vibrations. Expansion joints can reduce the mutual influence between them and lower the risk of overall damage.

[0006] Functional zoning: In large buildings, expansion joints can separate different functional areas, making them easier to design and manage independently.

[0007] Construction in sections: Expansion joints allow for construction in sections, simplifying the construction process of complex structures.

[0008] Maintenance and repair: Expansion joints facilitate the maintenance and repair of specific areas, reducing the impact on other areas.

[0009] The current cigarette factory's combined workshop is designed as a U-shaped building, with a connecting corridor in the middle of the U-shape. This corridor is disconnected from the buildings on either side, and expansion joints are installed at these disconnections. The buildings on either side of the U-shape house the production workshops, with the north and south workshops located in the excavation and filling areas, respectively. In addition to uneven settlement, equipment vibrations also affect the expansion joints. Carts and trolleys used in the production workshops frequently pass over the expansion joint covers, causing the initially installed aluminum alloy covers to deform and become damaged after prolonged use, rendering them unusable.

[0010] Currently, a search reveals that Chinese utility model patent CN212772478U discloses a waterproof structure for underground engineering, comprising: angle steel, flexible waterstop, drive assembly, boss, screw, forward rotation part, reverse rotation part, shielding part, rotating block, arc groove, arc strip, cover plate, fastener, positioning column, through hole, nut, and sealing gasket. While it can effectively shield expansion joints and adapt to changes in joint size, it still suffers from the following technical drawbacks:

[0011] On the one hand, by using a waist-shaped groove design perpendicular to the expansion joint, the cover plate can only meet the function of keeping the expansion joint in place when the expansion joint changes in that direction. When floor settlement or displacement occurs in the direction parallel to the expansion joint, the cover plate will deform or be damaged.

[0012] On the other hand, the two ends of the cover plate are raised above the flat surface, and the bolts and nuts are raised above the cover plate. When a trolley or flatbed cart needs to pass over the expansion joint, the wheels will be stuck or the cart will be bumped.

[0013] Another method involves fixing the waterstop by setting angle steel. However, the installation of angle steel requires cutting an arc-shaped groove in the middle of the expansion joint, which is inconvenient for operators during the process.

[0014] In view of the many shortcomings and deficiencies of the above-mentioned expansion joint covers, such as their inability to meet multi-angle adaptability and the inconvenience of pushing carts, flatbed carts and other equipment passing through, it is necessary to develop a more practical and efficient expansion joint cover for floor slabs made of rigid materials to prevent deformation. This is the key to solving the above technical problems. Summary of the Invention

[0015] In view of the many defects and deficiencies in the above-mentioned background technology, this utility model has made improvements and innovations, aiming to provide a rigid material anti-deformation floor expansion joint cover plate. During use, the movable plate is connected by symmetrically arranged fixed plates and toothed plates. The connection end of the toothed plate and the fixed plate is left with a gap. The deformation adaptation perpendicular to the expansion joint direction is realized by the displacement of the two ends of the movable plate in the sliding groove.

[0016] Another objective of this invention is to provide a spring and a connecting shaft at the connection between the toothed plate and the movable plate, so that the movable plate can adapt when displacement occurs parallel to the direction of the expansion joint, thereby preventing deformation and damage to the cover plate. When floor settlement occurs, the two ends of the movable plate move in the groove, and the gap between the toothed plate and the fixed plate increases to accommodate the increased distance. The movable plate is supported by the groove, thus satisfying the deformation adaptation when floor settlement occurs.

[0017] Another objective of this invention is to make it more convenient for operators to move trolleys, carts, and other transport vehicles by setting up a ramp structure.

[0018] To solve the above problems and achieve the objectives of the invention, this utility model provides a rigid material anti-deformation floor expansion joint cover plate, which is achieved through the following design structure and the following technical solution:

[0019] A rigid material anti-deformation floor expansion joint cover plate includes an expansion joint cover plate (1) erected between two building bodies (3), wherein the expansion joint cover plate (1) includes: a fixed plate (11), a toothed plate (12), and a movable plate (13);

[0020] The fixing plate (11) is symmetrically designed and is fixed to the building body (3) by fixing bolts (113). One end of the fixing plate (11) is provided with a ramp (111), and the other end extends downward with a groove (112). The middle part is a toothed groove (114) with equal spacing and length.

[0021] The toothed plate (12) is symmetrically designed, with one end being a toothed end (121) that mates with the middle part of the fixed plate (11), and the other end being a connecting section (122) that connects to the movable plate (13);

[0022] The movable plate (13) is designed with a central plane, and has sliding ends (131) extending downward at both ends and slidably disposed in the slide groove (112). A groove (134) is provided at the connection between the plane and the sliding end (131) to cooperate with the connecting section (122).

[0023] Preferably, the length of the groove (134) is greater than the length of the connecting end (122), and it is connected to the spring (133) as a whole through the connecting shaft (132);

[0024] Among them, springs (133) are located on both sides of the connecting end (122) to limit the connecting end (122).

[0025] Preferably, the groove (112) is a plane with one end fixedly connected to the fixing plate (11) and the other end extending upward to limit the sliding end (131).

[0026] Preferably, the distance between the toothed grooves (114) between the two symmetrical fixed plates (11) is greater than the distance between the symmetrical toothed ends (121) after the movable plate (13) and the toothed plate (12) are connected.

[0027] Preferably, a soft washer is provided between the fixing bolt (113) and the fixing plate (11), and the bolt head is flush with the fixing plate (11) after the fixing bolt (113) is tightened.

[0028] Preferably, the fixed plate (11), the toothed plate (12) and the movable plate (13) are all made of rigid materials.

[0029] Preferably, the fixing plate (11) and the building body (3) further include a waterstop (2), which is fixed between the two fixing plates (11) by fixing bolts (113), with the middle part naturally hanging down in the expansion joint (31).

[0030] Preferably, the groove (112) has a "U" shaped structure.

[0031] Preferably, the expansion joint cover (1) is coated with waterproof sealant at the contact points with the building body (3).

[0032] Preferably, the fixing bolt (113) is an expansion bolt.

[0033] The working principle is as follows: Before use, the operator first uses a fixing bolt (113) to pass through the flexible washer, fixing plate (11) and waterstop (2) and tightens the fixing bolt (113) to fix the above components to the building body (3). At this time, the downward extension of the slide groove (112) fits with the expansion joint (31) between the building body (3). The connecting shaft (132) passes through the movable plate (13), spring (133), connecting end (122) and spring (133) in sequence to connect the toothed plate (12) and movable plate (13) into a whole. Then, the sliding end (131) of the movable plate (13) is placed in the slide groove (112), and after adjusting the position, the toothed end (121) is embedded in the toothed groove (114). At this time, there is a certain gap between the toothed end (121) and the toothed groove (114), and the installation of this utility model is completed. After installation, the operator applies waterproof sealant to the contact area between the utility model and the building body (3).

[0034] During use, the operator pushes the trolley from the ramp (111) to the fixed plate (11), toothed plate (12) and movable plate (13), and then enters the corridor through the toothed plate (12) and fixed plate (11) on the other side.

[0035] When the building body (3) undergoes lateral displacement, the building body (3) on one side drives the fixed plate (11) at one end to move. When the movement distance is small, the movement of the fixed plate (11) reduces the gap between the toothed groove (114) and the toothed end (121). When the movement distance is large, the movement of the fixed plate (11) makes the toothed groove (114) and the toothed end (121) fit tightly together, thereby driving the toothed plate (12) and the movable plate (13), and driving the sliding end (131) to slide in the groove (112), so that the gap between the toothed plate (12) and the toothed groove (114) at the other end is reduced, and the expansion joint cover plate (1) will not deform or be damaged.

[0036] When the building body (3) undergoes longitudinal displacement, the building body (3) on one side drives the fixed plate (11) to move, thereby driving the toothed plate (12) to move. The connecting end (122) of the toothed plate (12) moves along the connecting shaft (132) in the groove (134) and squeezes the spring (133). The expansion joint cover (1) will not deform or be damaged.

[0037] When the building (3) settles, the building (3) on one side causes the fixed plate (11) and toothed plate (12) to settle downwards, thereby causing the movable plate (13) on one side to settle, so that the sliding end (131) moves in the groove (112), and the movable plate (13) is cut at an angle, which can still play a supporting role, and the expansion joint cover (1) will not be deformed or damaged.

[0038] Finally, the operators regularly maintain the expansion joint cover (1) to prevent the fixing bolts (113) from loosening or dust from entering the gap. They also observe the gap between the toothed groove (114) and the toothed end (121), the compression of the spring (133) at the groove (134), and the slope change of the movable plate (13) to understand the changes in the expansion joint (31) in a timely manner.

[0039] In summary, the beneficial effects of this utility model compared with the prior art are as follows:

[0040] 1. This utility model, by combining toothed grooves and toothed plates and reserving gaps, can ensure that the expansion joint cover will not deform or be damaged when the expansion joint undergoes lateral changes, and can meet the load-bearing function during operation and transportation.

[0041] 2. By setting the connecting end and the groove to be connected to the spring through the connecting shaft, this utility model can meet the requirement that the connecting end compresses the spring during the longitudinal displacement of the expansion joint, so as to prevent the expansion joint cover plate from deforming or being damaged.

[0042] 3. This utility model, by setting up a sliding groove and a sliding end for use, allows the sliding end to move within the groove when the building settles, and is limited by the upward extension end of the groove. This ensures that the expansion joint cover plate does not deform or get damaged, and forms a slope, allowing operators to still operate trolleys and other transportation vehicles to pass through.

[0043] 4. By setting a toothed structure, this utility model creates gaps between the toothed structures during the lateral and longitudinal displacement of the building, thereby satisfying the deformation process of the expansion joint. Attached Figure Description

[0044] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0045] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0046] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0047] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0048] Figure 4 A schematic diagram of the overall structure of the fixing plate (11) of this utility model;

[0049] Figure 5 This is a schematic diagram of the overall structure of the movable plate (13) of this utility model;

[0050] Figure 6 This is one of the schematic diagrams showing the usage state of this utility model;

[0051] Figure 7 This is the second schematic diagram of the utility model in use;

[0052] Figure 8 This is the third schematic diagram of the usage state of this utility model;

[0053] Figure 9 This is a schematic diagram of Embodiment 1 of the present utility model;

[0054] Figure 10 This is one of the schematic diagrams of the usage state of Embodiment 2 of this utility model;

[0055] Figure 11 This is the second schematic diagram of the usage state of Embodiment 2 of this utility model;

[0056] Figure 12 This is one of the structural schematic diagrams of Embodiment 2 of this utility model;

[0057] Figure 13 This is the second schematic diagram of part of embodiment 2 of this utility model;

[0058] In the figure, the following numbers are used: 1—expansion joint cover plate, 11—fixed plate, 12—toothed plate, 13—movable plate, 111—slope, 112—slide groove, 113—fixing bolt, 114—toothed groove, 121—toothed end, 122—connecting end, 131—sliding end, 132—connecting shaft, 133—spring, 134—groove, second fixed plate—1111, second movable plate—1311, ball groove—1121, ball head end—1312;

[0059] 2—Waterstop;

[0060] 3—Building structure, 31—Expansion joint;

[0061] 4—Place block. Detailed Implementation

[0062] To make the technical means, inventive features, and achieved objectives and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0063] Example 1

[0064] like Figures 1 to 13 The diagram shows a rigid material anti-deformation floor expansion joint cover plate, which includes an expansion joint cover plate 1 erected between two building bodies 3. The expansion joint cover plate 1 includes: a fixed plate 11, a toothed plate 12, and a movable plate 13.

[0065] The fixing plate 11 is symmetrically designed and is fixed to the building body 3 by fixing bolts 113. One end of the fixing plate 11 is provided with a ramp 111, the other end extends downward with a groove 112, and the middle part is a toothed groove 114 with equal spacing and length.

[0066] The toothed plate 12 is symmetrically designed, with one end being a toothed end 121 that mates with the middle part of the fixed plate 11, and the other end being a connecting section 122 that connects to the movable plate 13.

[0067] The movable plate 13 has a central plane design, with sliding ends 131 extending downwards at both ends and slidably disposed in the sliding groove 112. A groove 134 is provided at the connection between the plane and the sliding end 131 to cooperate with the connecting section 122.

[0068] One type of floor expansion joint cover plate using rigid materials in the above-mentioned design structure, before use, such as Figure 3 As shown, the operator first uses a fixing bolt 113 to pass through the flexible washer, fixing plate 11, and waterstop 2, and tightens the fixing bolt 113 to fix the above components to the building body 3. At this time, the downward extension of the slide groove 112 fits against the deformation joint 31 between the building body 3. Using a connecting shaft 132, the movable plate 13, spring 133, connecting end 122, and spring 133 are passed through in sequence to connect the toothed plate 12 and the movable plate 13 into a whole. Then, the sliding end 131 of the movable plate 13 is placed in the slide groove 112, and after adjusting the position, the toothed end 121 is embedded in the toothed groove 114. At this time, there is a certain gap between the toothed end 121 and the toothed groove 114, thus completing the installation of this utility model. After installation, the operator applies waterproof sealant to the contact area between this utility model and the building body 3.

[0069] During use, such as Figure 1As shown, the operator pushes the trolley from the ramp 111 to the fixed plate 11, the toothed plate 12 and the movable plate 13, and then enters the connecting corridor through the toothed plate 12 and the fixed plate 11 on the other side.

[0070] When building 3 undergoes lateral displacement, such as Figure 6 As shown, the building body 3 on one side moves the fixed plate 11. When the moving distance is small, the movement of the fixed plate 11 reduces the gap between the toothed groove 114 and the toothed end 121. When the moving distance is large, the movement of the fixed plate 11 on one side makes the toothed groove 114 and the toothed end 121 fit tightly together, thereby driving the toothed plate 12 and the movable plate 13, and driving the sliding end 131 to slide in the groove 112, so that the gap between the toothed plate 12 and the toothed groove 114 on the other side is reduced, and the expansion joint cover plate 1 will not deform or be damaged.

[0071] When building 3 undergoes longitudinal displacement, such as Figure 8 As shown, the building body 3 on one side moves the fixed plate 11, which in turn moves the toothed plate 12. The connecting end 122 of the toothed plate 12 moves along the connecting shaft 132 in the groove 134, squeezing the spring 133 to adapt to the change process of the expansion joint 31. The expansion joint cover plate 1 will not deform or be damaged.

[0072] When building 3 settles, such as Figure 7 As shown, the building body 3 on one side moves the fixed plate 11 and the toothed plate 12 downward, thereby moving one side of the movable plate 13, so that the sliding end 131 moves in the groove 112, and the movable plate 13 is cut at an angle. However, because the groove 112 is provided, it can still play a supporting role, and the expansion joint cover plate 1 will not be deformed or damaged.

[0073] Finally, the operators regularly maintain the expansion joint cover plate 1 to prevent the fixing bolts 113 from loosening or dust from entering the gap. They also observe the gap between the toothed groove 114 and the toothed end 121, the compression of the spring 133 at the groove 134, and the slope change of the movable plate 13 to understand the changes in the expansion joint 31 in a timely manner.

[0074] Example 2

[0075] Furthermore, the length of the groove 134 is greater than the length of the connecting end 122, and it is connected to the spring 133 as a whole through the connecting shaft 132;

[0076] Among them, springs 133 are located on both sides of the connecting end 122 to limit the connection end 122.

[0077] In this utility model, such as Figure 8As shown, springs 133 are located on both sides of the connecting end 122 to limit the connection end 122, so that the movable plate can move longitudinally and prevent damage to the expansion joint cover plate 1 when longitudinal changes occur.

[0078] Furthermore, the slide groove 112 is a central plane, with one end fixedly connected to the fixed plate 11, and the other end extending upward to limit the sliding end 131.

[0079] In this utility model, such as Figure 6 As shown, the chute 112 allows the movable plate 13 to move laterally within the chute. When the distance between the building structures increases, unilateral stretching prevents deformation or damage.

[0080] Furthermore, the distance between the toothed grooves 114 between the two symmetrical fixed plates 11 is greater than the distance between the symmetrical toothed ends 121 after the movable plate 13 and the toothed plate 12 are connected.

[0081] In this utility model, such as Figure 2 As shown, when the expansion joint 31 changes or causes the distance between the two fixed plates to increase or decrease, because a gap is provided between the toothed groove 114 and the toothed end 121, and the sliding end 131 can slide in the sliding groove 112, this utility model can move with the change when the expansion joint 31 changes, and maintain the connection and load-bearing functions.

[0082] Example 3

[0083] This embodiment 3 is the same as embodiments 1 and 2, except that a transparent, soft material pad 4 is also provided between the two fixing plates 11, such as... Figure 9 As shown, the pad is fixed between the two fixed plates 11 by fixing bolts 113, covering the toothed plate 12 and the movable plate 13, to prevent dust and impurities from entering the gaps at the connection of the components and affecting the displacement of the movable plate 13.

[0084] Furthermore, a soft washer is provided between the fixing bolt 113 and the fixing plate 11, and the bolt head is flush with the fixing plate 11 after the fixing bolt 113 is tightened.

[0085] In this utility model, the design of the soft washer ensures that the vibration of the production workshop will not affect the fixing of the fixing bolt 113. After tightening, the bolt head is flush with the fixing plate 11, ensuring that the operators will not be affected by the fixing bolt 113 during the transportation process by trolleys or other transportation tools.

[0086] Furthermore, the fixed plate 11, the toothed plate 12, and the movable plate 13 are all made of rigid materials.

[0087] In this utility model, the use of rigid materials ensures the load-bearing capacity of the expansion joint cover plate 1.

[0088] Furthermore, the fixing plate 11 and the building body 3 also include a waterstop 2, which is fixed between the two fixing plates 11 by fixing bolts 113, with the middle part naturally hanging down into the expansion joint 31.

[0089] Furthermore, the groove 112 has a "U" shaped structure.

[0090] In this utility model, such as Figure 4 As shown, the U-shaped structure of the slide groove 112 can limit the sliding ends 131 at both ends of the movable plate 13.

[0091] Furthermore, the contact points between the expansion joint cover plate 1 and the building body 3 are coated with waterproof sealant.

[0092] In this utility model, the contact points between the expansion joint cover plate 1 and the building body 3 are coated with waterproof sealant, which can effectively prevent rainwater or dust from entering the connection point with the building body 3, causing the fixing bolts 113 to rust and affecting the fixing effect.

[0093] Furthermore, the fixing bolt 113 is an expansion bolt.

[0094] In this invention, a more stable connection is made between the fixing plate 11 and the building body 3 by using fixing bolts.

[0095] Example 4

[0096] This embodiment 4 is the same as embodiments 1, 2, and 3, except that at the connection between the second fixed plate 1111 and the second movable plate 1311, the ball groove 1121 structure provided on the second fixed plate 1111 is hinged to the ball end 1312 at one end of the second movable plate 1311. Figure 11 As shown, the other end of the second movable plate 1311 is an overlapping end. The design of the sliding end 131 and the groove 112 makes the second movable plate 1311 more firmly fixed. Furthermore, the hinged arrangement of the ball groove 1121 and the ball head end 1312 can also adapt to the changing process when the expansion joint 31 experiences different settlements in the lateral, longitudinal and vertical directions, and the expansion joint cover plate 1 will not deform or be damaged.

[0097] In summary, a more specific embodiment of this utility model is as follows:

[0098] like Figure 2 As shown, a rigid material anti-deformation floor expansion joint cover includes a fixed plate 11, a toothed plate 12, and a movable plate 13.

[0099] Before use, the operator first uses fixing bolts 113 to pass through the flexible washer, fixing plate 11, and waterstop 2, and tightens the fixing bolts 113 to fix the above components to the building body 3. At this time, the downward extension of the slide 112 fits against the deformation joint 31 between the building body 3, and the waterstop 2 is fixed between the two symmetrical fixing plates 12. The middle part of the waterstop 2 hangs down naturally, as... Figure 3 As shown. Using a connecting shaft 132, the movable plate 13, spring 133, connecting end 122, and spring 133 are passed sequentially to connect the toothed plate 12 and the movable plate 13 into a single unit. The connecting end 122 is limited in the middle of the groove 134 by the spring. Then, the sliding end 131 of the movable plate 13 is placed in the sliding groove 112. After adjusting its position, the toothed end 121 is embedded in the toothed groove 114. At this time, there is a certain gap between the toothed ends 121 on both sides and the toothed groove 114, thus completing the installation of this utility model. After installation, the operator applies waterproof sealant to the contact area between this utility model and the building body 3.

[0100] During use, the operator pushes the trolley from the ramp 111 to the fixed plate 11, toothed plate 12 and movable plate 13, and then enters another building 3 through the toothed plate 12 and fixed plate 11 on the other side.

[0101] When building 3 undergoes lateral displacement, such as Figure 6 As shown, the building body 3 on one side moves the fixed plate 11. When the moving distance is small, the movement of the fixed plate 11 reduces the gap between the toothed groove 114 and the toothed end 121. When the moving distance is large, the movement of the fixed plate 11 on one side makes the toothed groove 114 and the toothed end 121 fit tightly together, thereby driving the toothed plate 12 and the movable plate 13, and driving the sliding end 131 to slide in the groove 112, so that the gap between the toothed plate 12 and the toothed groove 114 on the other side is reduced. The displacement of the movable plate 13 satisfies the change of the expansion joint 31, and the expansion joint cover plate 1 will not be deformed or damaged.

[0102] When building 3 undergoes longitudinal displacement, such as Figure 8 As shown, the building body 3 on one side moves the fixed plate 11, which in turn moves the toothed plate 12. The connecting end 122 of the toothed plate 12 moves along the connecting shaft 132 in the groove 134, squeezing the spring 133 to adapt to the change process of the expansion joint 31. The expansion joint cover plate 1 will not deform or be damaged.

[0103] When building 3 settles, such as Figure 7As shown, the building body 3 on one side moves the fixed plate 11 and the toothed plate 12 downward, thereby moving one side of the movable plate 13, so that the sliding end 131 moves in the groove 112, and the movable plate 13 is cut at an angle. However, because the groove 112 is provided, it can still play a supporting role, and the expansion joint cover plate 1 will not be deformed or damaged.

[0104] Finally, the operators regularly maintain the expansion joint cover plate 1 to prevent the fixing bolts 113 from loosening or dust from entering the gap. They also observe the gap between the toothed groove 114 and the toothed end 121, the compression of the spring 133 at the groove 134, and the slope change of the movable plate 13 to understand the changes in the expansion joint 31 in a timely manner.

[0105] In this utility model, the connection is either a fixed connection or a detachable connection. The fixed connection is either a welded connection or a directly machined integral structure, while the detachable connection is either an internal or external threaded connection, a snap-fit ​​connection, or a plug-in structure connection.

[0106] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A rigid material anti-deformation floor expansion joint cover, comprising an expansion joint cover (1) erected between two building structures (3), characterized in that, The expansion joint cover plate (1) includes: a fixed plate (11), a toothed plate (12), and a movable plate (13); The fixing plate (11) is symmetrically designed and installed on both sides of the movable plate (13). It is fixed to the building body (3) by fixing bolts (113). One end of the fixing plate (11) is provided with a ramp (111), and the other end extends downward with a groove (112). The middle part is a toothed groove (114) with equal spacing and length. The toothed plate (12) is symmetrically designed and installed on both sides of the movable plate (13). One end is a toothed end (121) that works with the middle part of the fixed plate (11), and the other end is a connecting section (122) that connects to the movable plate (13). The movable plate (13) is designed with a central plane, and has sliding ends (131) extending downward at both ends and slidably disposed in the slide groove (112). A groove (134) is provided at the connection between the plane and the sliding end (131) to cooperate with the connecting section (122).

2. A rigid material anti-deformation floor expansion joint cover plate according to claim 1, characterized in that, The groove (134) is longer than the connecting end (122), and is connected to the spring (133) as a whole through the connecting shaft (132); Among them, springs (133) are located on both sides of the connecting end (122) to limit the connecting end (122).

3. A rigid material anti-deformation floor expansion joint cover plate according to claim 1, characterized in that, The groove (112) is a plane in the middle, one end of which is fixedly connected to the fixed plate (11), and the other end extends upward to limit the sliding end (131).

4. A rigid material anti-deformation floor expansion joint cover plate according to claim 1, characterized in that, The distance between the toothed grooves (114) between the two symmetrical fixed plates (11) is greater than the distance between the symmetrical toothed ends (121) after the movable plate (13) and the toothed plate (12) are connected.

5. A rigid material anti-deformation floor expansion joint cover plate according to claim 1, characterized in that, A soft washer is provided between the fixing bolt (113) and the fixing plate (11), and the bolt head is flush with the fixing plate (11) after the fixing bolt (113) is tightened.

6. A rigid material anti-deformation floor expansion joint cover plate according to claim 1, characterized in that, The fixed plate (11), toothed plate (12) and movable plate (13) are all made of rigid materials.

7. A rigid material anti-deformation floor expansion joint cover plate according to claim 1, characterized in that, The fixing plate (11) and the building body (3) also include a waterstop (2), which is fixed between the two fixing plates (11) by fixing bolts (113), with the middle part naturally hanging down in the expansion joint (31).

8. A rigid material anti-deformation floor expansion joint cover plate according to claim 3, characterized in that, The groove (112) has a "U-shaped" structure.

9. A rigid material anti-deformation floor expansion joint cover plate according to claim 3, characterized in that, The expansion joint cover plate (1) is coated with waterproof sealant at the contact points with the building body (3).

10. A rigid material anti-deformation floor expansion joint cover plate according to claim 1, characterized in that, The fixing bolt (113) is an expansion bolt.

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