Floor spring

By designing sealing gaskets and limiting mechanisms in the floor spring, the problem of insufficient sealing performance is solved, achieving better waterproof and moisture-proof effects and extending service life.

CN224064168UActive Publication Date: 2026-03-31SHANGHAI KUNUO SPRING IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing floor springs have insufficient sealing performance, which allows water and moisture to seep in, causing internal structural corrosion and affecting their service life.

Method used

The design incorporates a sealing gasket, cover plate, connecting block, connecting column, and limiting mechanism. Through threaded connection and magnetic locking, the cover plate and the floor spring body are sealed to prevent loosening.

Benefits of technology

This improves the waterproof and moisture-proof performance of the floor spring, prevents internal structural corrosion, maintains sealing performance, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of floor springs, and particularly relates to a floor spring which comprises a floor spring body, a sealing gasket is connected in the floor spring body in a sliding and sleeved mode, a cover plate is fixedly connected to the top of the sealing gasket, an inserting block is connected in the cover plate in a sliding and sleeved mode, and a connecting block is fixedly connected to the top of the inserting block. The connecting block is in contact with the cover plate, a connecting column is slidably connected into the connecting block in a sleeved mode, a sliding block is fixedly connected to the inner side of the connecting block, and the sliding block is slidably connected with the connecting column. According to the floor spring, through the design of the sealing gasket, the joint of the floor spring body and the cover plate can be sealed, the waterproof and moistureproof performance of the floor spring body is improved, corrosion of an internal structure is avoided, under the threaded fit of the screw rod and the connecting column, the connecting column can press the connecting block downwards, the cover plate can press the sealing gasket downwards, and the sealing effect is good. Therefore, the sealing gasket can be compressed, and the sealing performance of the floor spring body can be further improved.
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Description

Technical Field

[0001] This utility model relates to the field of floor spring technology, specifically a floor spring. Background Technology

[0002] Floor springs are devices installed on the ground for the automatic closing and positioning of doors. Their core functions include supporting the weight of the door, enabling smooth opening and closing, providing cushioning and damping, and ensuring accurate positioning after the door is closed. The design must consider load-bearing capacity, durability, ease of adjustment, and environmental adaptability.

[0003] Utility model patent CN204590925U discloses a floor spring, including a floor spring body, a housing, a main cover plate, a secondary cover plate, and a sealing ring. The floor spring body has a cam and is housed within the housing. A groove is formed on one side of the main cover plate, comprising a long, narrow groove and a circular hole. One end of the long, narrow groove is located at the edge of the main cover plate, and the other end connects to the circular hole. The main cover plate covers the top of the housing. The secondary cover plate is fitted onto the cam and mates with the groove. The sealing ring is located between the cam and the secondary cover plate. This utility model, through its rigorous sealing design, provides excellent sealing, ensuring no oil leakage even after prolonged use and extending the service life of the floor spring.

[0004] In existing technology, floor springs have insufficient sealing performance, and the infiltration of water and moisture can easily cause corrosion of the internal structure, affecting the use of the floor spring. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a floor spring that solves the problem of insufficient sealing performance of floor springs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a floor spring, comprising a floor spring body, a sealing gasket slidably sleeved inside the floor spring body, a cover plate fixedly connected to the top of the sealing gasket, an insert block slidably sleeved inside the cover plate, a connecting block fixedly connected to the top of the insert block, the connecting block contacting the cover plate, a connecting post slidably sleeved inside the connecting block, a slider fixedly connected to the inner side of the connecting block, the slider slidably connected to the connecting post, a sealing mechanism provided on the connecting post, and a limit mechanism provided on the sealing mechanism.

[0007] Preferably, the connecting column has an annular groove inside, and a slider is slidably connected inside the annular groove. By designing the annular groove, the slider can slide along the annular groove.

[0008] Preferably, the sealing mechanism includes a support base, a support base slidably sleeved on the outer side of the connecting column, the support base being fixedly connected to the floor spring body, a guide block being fixedly connected to the inner side of the support base, the guide block being slidably connected to the connecting column, a screw rod being threadedly connected to the inside of the connecting column, a handle being fixedly connected to the outer side of the screw rod, a bracket being rotatably sleeved on the outer side of the screw rod via a bearing, the bracket being fixedly connected to the support base, and a fixing seat being rotatably sleeved on the outer side of the screw rod via a bearing, the fixing seat being fixedly connected to the floor spring body. By designing this sealing mechanism, the connection between the cover plate and the floor spring body can be sealed.

[0009] Preferably, the connecting column has a guide groove inside, and a guide block is slidably connected inside the guide groove. By designing the guide groove, the guide block can slide along the guide groove.

[0010] Preferably, the limiting mechanism includes a slot, the screw has a slot inside, a rod is slidably connected inside the slot, a magnetic block is fixedly connected to the lower end of the rod, the magnetic block is slidably connected to a fixed base, a slide rod is fixedly connected to the outside of the magnetic block, a fixing block is fixedly connected to the outside of the slide rod, both the slide rod and the fixing block are slidably connected to the fixed base, a spring is provided on the outside of the slide rod, and a magnet is fixedly connected inside the fixed base. By designing this limiting mechanism, the screw can be locked and limited.

[0011] Preferably, there are multiple slots, which are arranged in a ring and evenly distributed inside the screw. By designing multiple slots, the insert can be inserted into the slots at different positions.

[0012] Preferably, one end of the spring is fixedly connected to the fixed block, and the other end of the spring is fixedly connected to the fixed base. The spring is designed so that its force can be applied to the fixed block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the design of a sealing gasket, can seal the connection between the floor spring body and the cover plate, improve the waterproof and moisture-proof performance of the floor spring body, avoid corrosion of the internal structure, and under the threaded engagement of the screw and the connecting column, the connecting column can press down on the connecting block, and the cover plate can press down on the sealing gasket, so that the sealing gasket is compressed, thereby further improving the sealing performance of the floor spring body.

[0015] 2. This utility model, through the design of the insertion rod and the slot, can limit and lock the screw, thereby fixing the connecting column. It can keep the cover plate pressed against the sealing gasket, preventing the cover plate from loosening and affecting the waterproof performance of the ground spring body, thus indirectly improving the sealing performance. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0019] Figure 4 This utility model Figure 4 Left sectional view of the fixed seat.

[0020] In the diagram: 1. Floor spring body; 2. Sealing gasket; 3. Cover plate; 4. Insert block; 5. Connecting block; 6. Connecting column; 7. Slider; 8. Sealing mechanism; 9. Limiting mechanism; 10. Annular groove; 81. Support base; 82. Guide block; 83. Guide groove; 84. Screw; 85. Handle; 86. Bracket; 87. Fixing base; 91. Slot; 92. Insert rod; 93. Magnetic block; 94. Slide rod; 95. Fixing block; 96. Spring; 97. Magnet. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 , Figure 3 A floor spring includes a floor spring body 1, a sealing gasket 2 slidably sleeved inside the floor spring body 1, a cover plate 3 fixedly connected to the top of the sealing gasket 2, an insert block 4 slidably sleeved inside the cover plate 3, a connecting block 5 fixedly connected to the top of the insert block 4, the connecting block 5 contacting the cover plate 3, a connecting post 6 slidably sleeved inside the connecting block 5, a slider 7 fixedly connected to the inner side of the connecting block 5, the slider 7 slidably connected to the connecting post 6, an annular groove 10 is provided inside the connecting post 6, the slider 7 is slidably connected inside the annular groove 10, the annular groove 10 is designed so that the slider 7 can slide along the annular groove 10, a sealing mechanism 8 is provided on the connecting post 6, and a limit mechanism 9 is provided on the sealing mechanism 8.

[0023] Please see Figure 1 , Figure 2 , Figure 3The sealing mechanism 8 includes a support base 81, which is slidably sleeved on the outer side of the connecting column 6. The support base 81 is fixedly connected to the floor spring body 1. A guide block 82 is fixedly connected to the inner side of the support base 81. The guide block 82 is slidably connected to the connecting column 6. A guide groove 83 is provided inside the connecting column 6. The guide block 82 is slidably connected inside the guide groove 83. By designing the guide groove 83, the guide block 82 can slide along the guide groove 83. A screw rod 84 is threadedly connected inside the connecting column 6. A handle 85 is fixedly connected to the outer side of the screw rod 84. A bracket 86 is rotatably sleeved on the outer side of the screw rod 84 through a bearing. The bracket 86 is fixedly connected to the support base 81. A fixing seat 87 is rotatably sleeved on the outer side of the screw rod 84 through a bearing. The fixing seat 87 is fixedly connected to the floor spring body 1. By designing the sealing mechanism 8, the connection between the cover plate 3 and the floor spring body 1 can be sealed.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 The limiting mechanism 9 includes slots 91. Slots 91 are provided inside the screw 84. Insert rods 92 are slidably connected inside slots 91. There are multiple slots 91, which are arranged in a ring and evenly distributed inside the screw 84. By designing multiple slots 91, the insert rods 92 can be inserted into slots 91 at different positions. A magnetic block 93 is fixedly connected to the lower end of the insert rod 92. The magnetic block 93 is slidably connected to the fixed base 87. A slide rod 94 is fixedly connected to the outside of the magnetic block 93. A fixing block 95 is fixedly connected to the outside of the slide rod 94. Both the slide rod 94 and the fixing block 95 are slidably connected to the fixed base 87. A spring 96 is provided on the outside of the slide rod 94. One end of the spring 96 is fixedly connected to the fixing block 95, and the other end of the spring 96 is fixedly connected to the fixed base 87. By designing the spring 96, the force of the spring 96 can act on the fixing block 95. A magnet 97 is fixedly connected inside the fixed base 87. By designing the limiting mechanism 9, the screw 84 can be locked and limited.

[0025] The specific implementation process of this utility model is as follows: When it is necessary to seal the floor spring body 1, first place the sealing gasket 2 and the cover plate 3 on the floor spring body 1, then rotate the connecting block 5. The connecting block 5 drives the slider 7 to slide along the annular groove 10, aligning the insert 4 with the cover plate 3. Then rotate the handle 85. The handle 85 drives the screw 84 to rotate. Through the threaded engagement between the screw 84 and the connecting post 6, the connecting post 6 moves down along the guide block 82. The connecting post 6 will drive the connecting block 5 to move down, so that the insert 4 is inserted into the cover plate 3. Through the action of the sealing gasket 2, the connection between the floor spring body 1 and the cover plate 3 can be sealed, improving the waterproof and moisture-proof performance of the floor spring body 1, avoiding corrosion of the internal structure, and the cover plate 3 can press down on the sealing gasket 2, so that the sealing gasket 2 can be compressed, thereby further improving the sealing performance of the floor spring body 1.

[0026] After the cover plate 3 is sealed and connected, push the insert rod 92 inward. The insert rod 92 will drive the magnetic block 93 to move, so that the magnetic block 93 separates from the magnet 97. At this time, under the elastic action of the compressed spring 96, a pushing force will be applied to the fixing block 95 outward. The fixing block 95 will drive the slide rod 94 and the magnetic block 93 to move. The magnetic block 93 will drive the insert rod 92 to move, so that the insert rod 92 is inserted into the slot 91. At this time, the screw 84 can be limited and locked, and the connecting post 6 can be fixed. This will keep the cover plate 3 pressing the sealing gasket 2, preventing the cover plate 3 from loosening and affecting the waterproof performance of the ground spring body 1, and thus improving the sealing performance.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ground spring comprising a ground spring body (1), characterized in that: The inside of the connecting column (6) is provided with a guide groove (83), and the guide groove (83) is slidably connected with the guide block (82).

2. A ground spring according to claim 1, wherein: The inside of the connecting column (6) is provided with a guide groove (83), and the guide groove (83) is slidably connected with the guide block (82).

3. A ground spring according to claim 1, wherein: The sealing mechanism (8) comprises a supporting seat (81), the outside of the connecting column (6) is slidably sleeved with the supporting seat (81), the supporting seat (81) is fixedly connected with the ground spring body (1), the inner side of the supporting seat (81) is fixedly connected with the guide block (82), the guide block (82) is slidably connected with the connecting column (6), the inside of the connecting column (6) is threadedly connected with the screw rod (84), the outside of the screw rod (84) is fixedly connected with the handle (85), the outside of the screw rod (84) is rotatably sleeved with the support (86) through the bearing, the support (86) is fixedly connected with the supporting seat (81), and the outside of the screw rod (84) is rotatably sleeved with the fixed seat (87) through the bearing.

4. A ground spring according to claim 3, wherein: The inside of the connecting column (6) is provided with a guide groove (83), and the guide groove (83) is slidably connected with the guide block (82).

5. A ground spring according to claim 3, wherein: The limiting mechanism (9) comprises a plug groove (91), the inside of the screw rod (84) is provided with the plug groove (91), the inside of the plug groove (91) is slidably connected with the plug rod (92), the lower end of the plug rod (92) is fixedly connected with the magnetic block (93), the magnetic block (93) is slidably connected with the fixed seat (87), the outside of the magnetic block (93) is fixedly connected with the sliding rod (94), the outside of the sliding rod (94) is fixedly connected with the fixed block (95), and the sliding rod (94) and the fixed block (95) are slidably connected with the fixed seat (87). The outside of the sliding rod (94) is provided with a spring (96), and the inside of the fixed seat (87) is fixedly connected with a magnet (97).

6. A ground spring according to claim 5, wherein: The number of the plug grooves (91) is multiple, and the multiple plug grooves (91) are annularly and uniformly distributed in the inside of the screw rod (84).

7. A ground spring according to claim 5, wherein: One end of the spring (96) is fixedly connected with the fixed block (95), and the other end of the spring (96) is fixedly connected with the fixed seat (87). One end of the spring (96) is fixedly connected with the fixed block (95), and the other end of the spring (96) is fixedly connected with the fixed seat (87).

Citation Information

Patent Citations

  • Floor spring

    CN204590925U