Floor expansion joint connecting device

By designing a floor expansion joint connection device, the problems of complex structure and poor sealing of existing devices are solved by using connecting components and sealing mechanisms, achieving flatness and sealing of the floor installation, and improving user comfort and lifespan.

CN224338566UActive Publication Date: 2026-06-09CHANGCHUN DELIN WOODEN FLOORS INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN DELIN WOODEN FLOORS INC
Filing Date
2025-06-20
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing glass curtain wall expansion joint connection devices have complex structures, are time-consuming and labor-intensive to install, have poor sealing performance, and the floor may arch, crack, or have excessive gaps due to environmental changes, affecting their service life.

Method used

Design a floor expansion joint connection device, including a connecting component and a sealing mechanism. The expansion and contraction of the floor is restricted by the connecting block, rubber pad and spring, and the sealing performance is improved by the toothed rod and sealing gasket to prevent moisture penetration.

Benefits of technology

It ensures accurate positioning during floor installation, reduces shaking, improves comfort, effectively prevents moisture from entering, protects the floor from dampness, and extends its service life.

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Abstract

The utility model discloses a floor expansion joint connecting device, specifically related to the technical field of building engineering, including two floor, be provided with expansion joint between two floor, install connecting assembly and sealing mechanism in expansion joint inside, connecting assembly includes connecting seat, is provided with a plurality of first sliding slot in connecting seat inboard, and the top fixedly connected with fixed plate of connecting seat, and the both sides fixedly connected with a plurality of connecting housings of fixed plate, and the inside fixedly connected with the sheet of spring of connecting housing, and the one side fixedly connected with the connecting block of sheet of spring, and connecting block and connecting housing inside slidingly connected, and the one side fixedly connected with floor of connecting block. The utility model discloses through setting connecting assembly and sealing mechanism, make two floor keep even in the installation process, and can limit two floor excessive expansion and shrinkage, can reduce the wear and tear of floor edge, can effectively reduce moisture and humidity and penetrate to the below of floor through expansion joint simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and more specifically, to a floor expansion joint connection device. Background Technology

[0002] Expansion joints (also known as expansion joints) are gaps that must be left during floor installation to cope with thermal expansion and contraction caused by changes in temperature and humidity, and to prevent the floor from buckling, deforming or cracking.

[0003] Existing glass curtain wall expansion joint connection devices are usually quite complex in structure, which makes the installation process time-consuming and labor-intensive, and the sealing of the connection is poor, which makes it easy for external rainwater to penetrate into the interior during long-term use.

[0004] A search revealed that Chinese patent CN214994771U discloses a connection device for expansion joints in glass curtain walls. By installing rubber sealing gaskets between the front baffle, the back baffle, and the limiting plate, the overall sealing effect at the front and back of the expansion joint can be enhanced. At the same time, symmetrically installed corrugated sealing gaskets can further enhance the overall sealing effect in the middle of the expansion joint, thereby making the overall sealing stronger and preventing water leakage or ingress during actual use.

[0005] In actual use, the aforementioned glass curtain wall expansion joint connection device may cause unevenness in the floor due to operational errors during manual installation. Furthermore, the floor may expand or contract excessively due to environmental factors, resulting in arching, cracking, or excessively large gaps, thus reducing the service life of the floor. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a floor expansion joint connection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A floor expansion joint connection device includes two floorboards, with an expansion joint provided between the two floorboards, and a connecting component and a sealing mechanism installed inside the expansion joint;

[0009] The connecting assembly includes a connecting seat with multiple first sliding grooves on its inner side. A fixing plate is fixedly connected to the top of the connecting seat. Multiple connecting shells are fixedly connected to both sides of the fixing plate. A spring is fixedly connected inside the connecting shell. A connecting block is fixedly connected to one side of the spring. The connecting block is slidably connected to the inside of the connecting shell. One side of the connecting block is fixedly connected to the floor. Rubber pads are fixedly connected to both sides of the connecting seat. Two insertion rods are fixedly connected to both sides of the floor. The insertion rods pass through the rubber pads and are slidably connected to the inner side of the connecting seat. Sliding rods are fixedly connected to both sides of the insertion rods. The sliding rods are slidably connected to the inner side of the first sliding groove. A connecting bracket is provided on one side of the insertion rod. Two telescopic springs are fixedly connected to one side of the connecting bracket. A telescopic spring is threadedly connected to the inner side of the connecting bracket. The outer side of the telescopic spring is threadedly connected to the inner side of the insertion rod.

[0010] By adopting the above technical solution, the shaking sensation when walking on the floor can be reduced by limiting excessive expansion and contraction of the floor, thus improving walking comfort.

[0011] As a further description of the above technical solution: the sealing mechanism includes a toothed rod, which is fixedly connected to the top of the fixed plate. A sealing gasket is provided on the outside of the toothed rod, and the inner side of the sealing gasket is adapted to the outer protrusion of the toothed rod. Positioning guide rods are fixedly connected to both sides of the sealing gasket. A second sliding groove is provided on both sides of the floor, and the inner side of the second sliding groove is slidably connected to the positioning guide rod.

[0012] By adopting the above technical solution, the sealing gasket can reduce the entry of moisture into the inside of the expansion joint, thereby protecting the floor from the damage of a damp environment.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. By setting up connecting components, compared with the existing technology, multiple connecting blocks and two rubber pads can provide positioning and limiting when two floorboards are installed, so that the two floorboards remain flat during the installation process. The use of spring clips and fixing bolts can limit the excessive expansion and contraction of the two floorboards, reduce wear on the edges of the floorboards, and reduce the wobbling sensation when walking on the floorboards.

[0015] 2. By setting up a sealing mechanism, compared with the existing technology, the stepped protrusions on the outer side of the toothed rod can be tightly connected with the sealing gasket, so that the sealing gasket can fit tightly against the floor on both sides of the expansion joint, effectively reducing the penetration of moisture and humidity into the floor through the expansion joint. The sealing gasket can also be disassembled for regular cleaning and replacement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the floor structure of this utility model.

[0018] Figure 3 This is a partial structural diagram of the connection point of the fixing plate of this utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the connector of this utility model.

[0020] Figure 5 This is a schematic diagram of the telescopic spring structure of this utility model.

[0021] Figure 6 For the present utility model Figure 1 Enlarged structural diagram of section A;

[0022] The attached diagram is labeled as follows: 1. Floor; 2. Expansion joint; 3. Connecting seat; 4. First slide groove; 5. Fixing plate; 6. Connecting shell; 7. Spring piece; 8. Connecting block; 9. Rubber pad; 10. Insert rod; 11. Slide rod; 12. Connecting bracket; 13. Telescopic spring; 14. Fixing bolt; 15. Toothed rod; 16. Sealing gasket; 17. Positioning guide rod; 18. Second slide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The embodiments disclosed in this application are as follows: Figure 1-6 The floor expansion joint connection device shown includes two floorboards 1, an expansion joint 2 is provided between the two floorboards 1, and a connecting component and a sealing mechanism are installed inside the expansion joint 2;

[0025] The connecting assembly includes a connecting base 3, with multiple first sliding grooves 4 on the inner side of the connecting base 3. A fixing plate 5 is fixedly connected to the top of the connecting base 3. Multiple connecting shells 6 are fixedly connected to both sides of the fixing plate 5. A spring piece 7 is fixedly connected inside the connecting shell 6. A connecting block 8 is fixedly connected to one side of the spring piece 7. The connecting block 8 is slidably connected to the inside of the connecting shell 6. One side of the connecting block 8 is fixedly connected to the floor 1. Rubber pads 9 are fixedly connected to both sides of the connecting base 3. Two insert rods 10 are fixedly connected to both sides of the floor 1. The insert rods 10 pass through the rubber pads 9 and are slidably connected to the inner side of the connecting base 3. Sliding rods 11 are fixedly connected to both sides of the insert rods 10. The sliding rods 11 are slidably connected to the inner side of the first sliding groove 4. A connecting bracket 12 is provided on one side, and two telescopic springs 13 are fixedly connected to one side of the connecting bracket 12. The telescopic springs 13 are threadedly connected to the inner side of the connecting bracket 12, and the outer side of the telescopic springs 13 is threadedly connected to the inner side of the insert rod 10. Multiple connecting blocks 8 are inserted into the connecting housing 6, and the two insert rods 10 can be inserted into the connecting seat 3. This ensures that the two floorboards 1 can remain flat during installation. The return spring force of the fixing bolt 14 can limit the contraction of the two floorboards 1. When the two spring pieces 7 are squeezed, they can apply a reaction force to the connecting blocks 8, thereby limiting the expansion of the two floorboards 1. This reduces the shaking sensation when walking on the floor and improves walking comfort.

[0026] Reference Figure 4 As shown, the sealing mechanism includes a toothed rod 15, which is fixedly connected to the top of the fixed plate 5. A sealing gasket 16 is provided on the outside of the toothed rod 15, and the inner side of the sealing gasket 16 is adapted to the outer protrusion of the toothed rod 15. Positioning guide rods 17 are fixedly connected to both sides of the sealing gasket 16. A second sliding groove 18 is provided on both sides of the floor 1. The inner side of the second sliding groove 18 is slidably connected to the positioning guide rod 17. By using the two positioning guide rods 17 to slide and connect with the inner side of the second sliding groove 18, the sealing gasket 16 can be installed on the outside of the toothed rod 15. By using the inner side of the sealing gasket 16 to adapt to the outer protrusion of the toothed rod 15, the sealing gasket 16 can be tightly connected to the toothed rod 15, so that the sealing gasket 16 can tightly fit the floor 1 on both sides of the expansion joint, which can reduce the entry of moisture into the inner side of the expansion joint 2, thereby reducing the floor 1 from getting damp and moldy.

[0027] Working principle of this utility model: This utility model designs a floor expansion joint connection device, the specific structure of which is shown in the attached instruction manual. Figure 1-6As shown, in this technical solution, through the cooperation between various structures, when it is necessary to connect the expansion joint 2 between two floorboards 1, firstly, the connecting block 8 on one side of the two floorboards 1 is inserted into the connecting housing 6, and two insert rods 10 are inserted into the connecting seat 3. The two sliding rods 11 are slidably connected to the first sliding groove 4, so that the sliding rods 11 can provide a guiding function for the insert rods 10 to be inserted into the connecting seat 3. The two insert rods 10 and multiple connecting housings 6 can be used to position the two floorboards 1 so that the two floorboards 1 can be kept flush during installation. The fixing bolt 14 can be rotated through the through hole at the bottom of the connecting seat 3. The connecting bracket 12 and the insert rod 10 can be connected through the fixing bolt 14. Then, the sealing gasket 16 is inserted into the outside of the toothed rod 15, and the positioning guide rod 17 is slidably connected to the inside of the second sliding groove 18. The two positioning guide rods 17 The sealing gasket 16 can be guided for installation, allowing it to be installed with the toothed rod 15. The inner side of the sealing gasket 16 matches the outer teeth of the toothed rod 15, ensuring a tight connection between the sealing gasket 16 and the toothed rod 15. This allows the sealing gasket 16 to provide protection at the top of the expansion joint 2. When the two floorboards 1 contract, the two floorboards 1 can pull the two fixing bolts 14 inside the connecting seat 3 via the insert rod 10. The expansion and contraction of the two fixing bolts 14 allows the two floorboards 1 to contract, but the return spring force of the two fixing bolts 14 can limit the excessive contraction of the two floorboards 1. When the two floorboards 1 expand, the floorboards 1 can squeeze the spring piece 7 inside the connecting housing 6 via the connecting block 8. The reaction force of the spring piece 7 can push the limiting connecting block 8 to move, thereby limiting the excessive expansion of the two floorboards 1.

[0028] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures and will not be described here.

[0030] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A floor expansion joint connecting device comprising two floors (1), characterized in that: Two said floor (1) between the expansion joint (2) is provided with connecting components and sealing mechanism inside the expansion joint (2) is installed; The connecting assembly comprises a connecting seat (3), a plurality of first sliding grooves (4) are formed in the inner side of the connecting seat (3), a fixed plate (5) is fixedly connected to the top end of the connecting seat (3), a plurality of connecting housings (6) are fixedly connected to the two sides of the fixed plate (5), an elastic sheet (7) is fixedly connected inside the connecting housing (6), a connecting block (8) is fixedly connected to one side of the elastic sheet (7), the connecting block (8) is slidably connected inside the connecting housing (6), and the connecting block (8) is fixedly connected to the floor (1) on one side.

2. The floor expansion joint connecting device according to claim 1, wherein: The connecting seat (3) is fixedly connected with rubber pads (9) on both sides, the floor (1) is fixedly connected with two insertion rods (10) on both sides, the insertion rod (10) penetrates through the rubber pad (9) and is slidably connected inside the connecting seat (3).

3. The floor expansion joint connecting device of claim 2, wherein: The insertion rod (10) is fixedly connected with sliding rods (11) on both sides, and the sliding rod (11) is slidably connected with the inner side of the first sliding groove (4).

4. The floor expansion joint connecting device of claim 2, wherein: One side of the insertion rod (10) is provided with a connecting bracket (12), two extension springs (13) are fixedly connected to one side of the connecting bracket (12), the extension springs (13) are screw-connected inside the connecting bracket (12), and the extension springs (13) are screw-connected with the inner side of the insertion rod (10) on the outer side.

5. The floor expansion joint connecting device according to claim 1, wherein: The sealing mechanism comprises a toothed rod (15), and the toothed rod (15) is fixedly connected with the top end of the fixed plate (5).

6. The floor expansion joint connecting device according to claim 5, wherein: The outer side of the toothed rod (15) is provided with a sealing gasket (16), the inner side of the sealing gasket (16) is matched with the outer side of the toothed rod (15), and the two sides of the sealing gasket (16) are fixedly connected with positioning guide rods (17).

7. The floor expansion joint connecting device according to claim 1, wherein: The floor (1) is provided with a second sliding groove (18) on both sides, and the second sliding groove (18) is slidably connected with the positioning guide rod (17) on the inner side.