Elastic internal support limiting connection device, double-layer prefabricated component and production method

Abstract

This invention discloses an elastic internal support limiting connection device, a double-layer prefabricated component, and a production method, relating to the field of double-layer prefabricated component connection technology. It includes: a first internal support, a second internal support, and an elastic member. The first internal support is used for fixed connection with the inner or outer layer of the double-layer prefabricated component. When the first internal support is fixedly connected to the inner layer of the double-layer prefabricated component, one end of the second internal support is used to abut against the outer layer of the double-layer component; conversely, one end of the second internal support abuts against the inner layer of the double-layer component, and the other end of the second internal support is used for sliding connection with the first internal support in a direction perpendicular to the sidewall of the inner layer. One end of the elastic member is detachably fixedly connected to the second internal support, and the other end abuts against the first internal support. The elastic member can drive the second internal support to abut against the outer layer and complete the limiting fixation through friction, ensuring the integrity of the double-layer component's appearance and effectively improving the service life of the double-layer component.

Description

Technical Field

[0001] This invention relates to the field of double-layer prefabricated component connection technology, and in particular to an elastic internal support limiting connection device, a double-layer prefabricated component, and a production method thereof. Background Technology

[0002] In double-layer precast components made by ringing inner and outer components, the traditional connection method for the inner and outer components is mostly to fix the inner component to the outer component by drilling holes in the outer component and using internal support components such as bolts or rivets through the outer component. The holes left on the outer component or the ends of the internal support components are difficult to hide by decoration, which cannot meet the requirements of the integrity and aesthetics of the component. In addition, the gaps at the holes of the internal support components in the outer component are prone to corrosion and aging, which affects the overall life of the component. Summary of the Invention

[0003] The purpose of this invention is to provide an elastic internal support limiting connection device, a double-layer prefabricated component, and a production method to solve the problems existing in the prior art, ensure the integrity of the appearance of the double-layer component, and effectively improve the service life of the double-layer component.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides an elastic internal support type limiting connection device, comprising: a first internal support member, a second internal support member, and an elastic member. The first internal support member is used for fixed connection with the inner or outer component of a double-layer prefabricated component. When the first internal support member is fixedly connected with the inner component of the double-layer prefabricated component, one end of the second internal support member is used to abut against the outer component of the double-layer component. When the first internal support member is fixedly connected with the outer component of the double-layer prefabricated component, one end of the second internal support member is used to abut against the inner component of the double-layer component, and the other end of the second internal support member is used to slide with the first internal support member in a direction perpendicular to the sidewall of the inner component. One end of the elastic member is detachably fixedly connected to the second internal support member, and the other end is used to abut against the first internal support member. The elastic member can drive the second internal support member to abut against the outer component or the inner component and complete the limiting and fixing through friction.

[0006] Preferably, the first inner support member includes a connecting plate and a first guide cylinder, the first guide cylinder being vertically and fixedly connected to the connecting plate, the connecting plate being used for fixed connection with the inner layer component, and the second inner support member being able to slide along the first guide cylinder.

[0007] Preferably, the second inner support includes a second guide cylinder and a friction plate. The second guide cylinder is sleeved on the outside of the first guide cylinder and can slide along the first guide cylinder. The interiors of the first guide cylinder and the second guide cylinder form an elastic element receiving space. The elastic element is disposed in the elastic element receiving space, and one end of the elastic element is detachably fixedly connected to the friction plate, and the other end abuts against the connecting plate.

[0008] Preferably, the elastic element includes a fixing bolt, a fastening washer, and a spring. The friction plate is provided with a threaded hole. The fixing bolt is used to thread into the threaded hole to fix the end of the spring to the friction plate. The fastening washer is used to be disposed between the fixed end of the spring and the nut of the fixing bolt.

[0009] Preferably, the edge of the first guide cylinder at the end away from the connecting plate extends outward to form a first limiting ring, and the first limiting ring is provided with at least one opening. The second guide cylinder at the end away from the friction plate is provided with a second limiting ring, which is provided corresponding to the opening. The second limiting ring is used to pass through the corresponding opening so that the second guide cylinder is sleeved on the outside of the first guide cylinder.

[0010] Preferably, there are two openings, and the two openings are symmetrically arranged about the axis of the first guide cylinder.

[0011] Preferably, the inner diameter of the second limiting ring is smaller than the outer diameter of the first limiting ring and greater than or equal to the outer diameter of the first guide cylinder, and the inner diameter of the second guide cylinder is greater than the outer diameter of the first limiting ring.

[0012] Preferably, the first elastic element is made of carbon steel, cast iron, or aluminum alloy casting, the connecting plate is rectangular, and the side length of the connecting plate is 40mm to 100mm. The second elastic element is made of carbon steel, cast iron, or aluminum alloy casting, the friction plate has a circular cross-section, and the maximum diameter of the cross-section of the friction plate is 40mm to 100mm.

[0013] The present invention also provides a double-layer prefabricated component, comprising: a plurality of elastic inner support limiting connection devices as described in any one of the above claims, the inner layer component and the outer layer component, wherein the inner layer component is sleeved inside the outer layer component and is limited and fixed by the plurality of elastic inner support limiting connection devices as described in any one of the above claims;

[0014] The present invention also provides a method for producing a double-layer prefabricated component as described above, comprising the following steps: fixing a plurality of first inner support members at certain intervals to the inner layer component of the double-layer prefabricated component; assembling each second inner support member and each elastic member with each first inner support member; after providing lubricating members to the second inner support member and the outer layer component, sliding the outer layer component onto the end of the inner layer component from one end and pushing it horizontally in; after the double-layer component is connected, removing the lubricating members; and using friction to limit and fix the outer layer component and the second inner support member.

[0015] The present invention achieves the following technical effects compared to the prior art:

[0016] This invention provides an elastic internal support limiting connection device, a double-layer prefabricated component, and a production method. By fixing a first internal support member to the inner layer of the double-layer prefabricated component, and by providing an elastic member and a second internal support member that can slide perpendicularly to the sidewall of the inner layer, the elastic member can drive the second internal support member to press against the outer layer. Friction between the outer layer and the second internal support member achieves limiting and fixing, thus avoiding drilling holes in the outer layer and fixing it to the inner layer with bolts or rivets. It also avoids exposed holes or bolt ends on the outer layer, ensuring the integrity of the double-layer component's appearance. Furthermore, it prevents corrosion and aging caused by gaps at the perforations, effectively improving the lifespan of the double-layer component. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the elastic internal support type limiting connection device provided by the present invention;

[0019] Figure 2 A schematic diagram of the structure of the first limiting ring of the elastic internal support type limiting connection device provided by the present invention;

[0020] Figure 3 A schematic diagram of the structure of the second limiting ring of the elastic internal support type limiting connection device provided by the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the double-layer component provided by the present invention;

[0022] In the figure: 100, elastic internal support type limiting connection device; 1, first internal support component; 11, connecting plate; 12, first guide cylinder; 121, first limiting ring; 2, second internal support component; 21, friction plate; 22, second guide cylinder; 221, second limiting ring; 3, elastic component; 31, spring; 32, fixing bolt; 33, fastening washer; 4, double-layer component; 5, outer layer component; 6, inner layer component. Detailed Implementation

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

[0024] The purpose of this invention is to provide an elastic internal support limiting connection device, a double-layer prefabricated component, and a production method to solve the problems existing in the prior art, ensure the integrity of the appearance of the double-layer component, and effectively improve the service life of the double-layer component.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] This embodiment provides an elastic internal support type limiting connection device 100, such as... Figures 1-3As shown, it includes: a first inner support 1, a second inner support 2, and an elastic member 3. The first inner support 1 is used to be fixedly connected to the inner layer member 6 or the outer layer member 5 of the double-layer precast component. When the first inner support 1 is fixedly connected to the inner layer member 6 of the double-layer precast component, one end of the second inner support 2 is used to abut against the outer layer member 5 of the double-layer component. When the first inner support 1 is fixedly connected to the outer layer member 5 of the double-layer precast component, one end of the second inner support 2 is used to abut against the inner layer member 6 of the double-layer component, and the other end of the second inner support 2 is used to slide with the first inner support 1 in a direction perpendicular to the side wall of the inner layer member 6. One end of the elastic member 3 is detachably fixedly connected to the second inner support 2, and the other end is used to abut against the first inner support 1. The elastic member 3 can drive the second inner support 2 to abut against the outer layer member 5 and complete the limiting fixation through friction. The first inner support 1 is fixedly connected to the inner layer 6 of the double-layer prefabricated component. By setting an elastic element 3 and a second inner support 2 that can slide with the first inner support 1 in a direction perpendicular to the side wall of the inner layer 6, the elastic element 3 can drive the second inner support 2 to press against the outer layer 5 or the inner layer 6 under the elastic action of the elastic element 3. The outer layer 5 or the inner layer 6 and the second inner support 2 can achieve limiting and fixing through friction, thereby avoiding drilling holes in the outer layer 5 or the inner layer 6 and fixing it to the inner layer 6 with bolts or rivets through the outer layer 5, and avoiding the exposure of holes or bolt ends on the outer layer 5, thereby ensuring the integrity of the appearance of the double-layer component 4. In addition, it can also avoid corrosion and aging caused by gaps at the perforation, thereby effectively improving the service life of the double-layer component 4.

[0028] In a preferred embodiment, the first inner support member is used to be fixedly connected to the inner layer member of the double-layer prefabricated component; one end of the second inner support member is used to abut against the outer layer member of the double-layer component.

[0029] In a preferred embodiment, the first inner support member 1 includes a connecting plate 11 and a first guide cylinder 12. The first guide cylinder 12 is vertically fixedly connected to the connecting plate 11. The connecting plate 11 is used to fixally connect to the inner layer member 6. The second inner support member 2 can slide along the first guide cylinder 12. The structure is simple and can realize the sliding of the second inner support member 2 and the first inner support member 1 in a direction perpendicular to the side wall of the inner layer member 6. It can also limit the relative displacement between the first inner support member 1 and the second inner support member 2 in a direction perpendicular to the axial direction of the first guide cylinder 12.

[0030] In a preferred embodiment, the second inner support member 2 includes a second guide cylinder 22 and a friction plate 21. The second guide cylinder 22 is sleeved on the outside of the first guide cylinder 12 and can slide along the first guide cylinder 12. An elastic member 3 receiving space is formed inside the first guide cylinder 12 and the second guide cylinder 22. The elastic member 3 is disposed in the elastic member 3 receiving space, and one end of the elastic member 3 is detachably fixedly connected to the friction plate 21, and the other end abuts against the connecting plate 11. The structure is simple. By disposing of the elastic member 3 in the elastic member 3 receiving space inside the first guide cylinder 12 and the second guide cylinder 22, it can be ensured that the elastic member 3 only expands and contracts in the axial direction, avoiding misalignment in the radial direction. This ensures that the elastic member 3 can achieve the function of pushing the second inner support member 2 to press against the outer layer member 5.

[0031] In a preferred embodiment, the elastic element 3 includes a fixing bolt 32, a fastening washer 33, and a spring 31. The friction plate 21 is provided with a threaded hole. The fixing bolt 32 is used to thread into the threaded hole to fix the end of the spring 31 to the friction plate 21. The fastening washer 33 is used to be placed between the fixed end of the spring 31 and the nut of the fixing bolt 32. The structure is simple and convenient for the installation of the spring 31. Furthermore, by setting the fastening washer 33, the firmness of the connection between the spring 31 and the second inner support 2 can be further guaranteed.

[0032] In a preferred embodiment, the edge of the first guide cylinder 12 away from the connecting plate 11 extends outward to form a first limiting ring 121. The first limiting ring 121 is provided with at least one opening. The second guide cylinder 22 away from the friction plate 21 is provided with a second limiting ring 221. The second limiting ring 221 is provided corresponding to the opening. The second limiting ring 221 is used to pass through the corresponding opening so that the second guide cylinder 22 is sleeved on the outside of the first guide cylinder 12. The second limiting ring 221 passes through the opening and is sleeved on the outside of the first guide cylinder 12. After rotating the second limiting ring 221 by a certain angle, the first limiting ring 121 can prevent the second limiting ring 221 from detaching from the first guide cylinder 12.

[0033] In a preferred embodiment, there are two openings, and the two openings are symmetrically arranged about the axis of the first guide cylinder 12. The structure is simple. The second limiting ring 221 passes through the opening and is sleeved on the outside of the first guide cylinder 12. After rotating the second limiting ring 221 by 90°, the first limiting ring 121 can prevent the second limiting ring 221 from disengaging from the first guide cylinder 12.

[0034] In a preferred embodiment, the inner diameter of the second limiting ring 221 is smaller than the outer diameter of the first limiting ring 121 and greater than or equal to the outer diameter of the first guide cylinder 12, and the inner diameter of the second guide cylinder 22 is greater than the outer diameter of the first limiting ring 121.

[0035] In a preferred embodiment, the first elastic element 3 is made of carbon steel, cast iron, or aluminum alloy casting, the connecting plate 11 is rectangular, and the side length of the connecting plate 11 is 40mm to 100mm. The second elastic element 3 is made of carbon steel, cast iron, or aluminum alloy casting, the friction plate 21 has a circular cross-section, and the maximum diameter of the cross-section of the friction plate 21 is 40mm to 100mm.

[0036] In a preferred embodiment, the friction plate 21 has a frustum structure, with the end having a smaller cross-sectional area for contacting the outer component 5.

[0037] In a preferred embodiment, the connecting plate 11 is an arc-shaped plate that can adapt to the inner components of the cylindrical structure.

[0038] In a preferred embodiment, the overall component height of the elastic inner support type limiting connection device 100 provided in this embodiment is determined by the gap size between the inner layer component 6 and the outer layer component 5 and the extension amount of the spring 31. The overall component height is equal to the height of the second inner support component 2 plus the extension amount of the spring 31 and the thickness of the connecting plate 11.

[0039] In a preferred embodiment, the elastic internal support limiting connection device 100 provided in this embodiment can be used as an independent whole device in various scenarios.

[0040] Example 2

[0041] This embodiment also provides a double-layer prefabricated component, including: multiple elastic internal support limiting connection devices 100 as in Embodiment 1, an inner layer component 6, and an outer layer component 5. The inner layer component 6 is sleeved inside the outer layer component 5 and is limited and fixed by multiple elastic internal support limiting connection devices 100 as in any one of Embodiment 1. The inner layer component is the main load-bearing component, including but not limited to structural components, media transport pipelines, etc., and the outer layer component is an auxiliary component, including but not limited to decorative layer components, protective layer components, etc.

[0042] In a preferred embodiment, the main components, such as the inner layer component 6 and the outer layer component 5, are pre-treated with anti-corrosion measures.

[0043] In a preferred embodiment, fire-retardant material is added to the gaps in the double-layer prefabricated components, and other manufacturing processes are performed to form a product for use in the corresponding field.

[0044] In a preferred embodiment, the double-layer prefabricated component in this embodiment is used to prefabricate a fireproof and decorative integrated double-layer steel structure component, which can form an integrated steel structure prefabricated component with fireproof and decorative features.

[0045] In a preferred embodiment, the double-layer prefabricated component in this embodiment is a double-layer prefabricated component that requires an external metal protective layer, such as various transport pipelines with thermal insulation layers and metal outer protective layers. The double-layer prefabricated component provided in this embodiment has a high degree of integration, which can significantly reduce the amount of on-site fireproofing, corrosion protection, and decoration work required by traditional construction methods, thereby saving construction time. The prefabricated component processing, connection, and fireproofing, corrosion protection, and decoration treatments are all prefabricated in the factory, and this industrialized production method can greatly improve product quality.

[0046] Example 3

[0047] This embodiment also provides a method for producing a double-layer precast component as in Embodiment 2, including the following steps: fixing multiple first inner support members 1 at certain intervals to the inner layer component 6 of the double-layer precast component; assembling each second inner support member 2 and each elastic member 3 with each first inner support member 1; after providing lubricants to the second inner support member 2 and the outer layer component 5, fitting the outer layer component 5 onto the end of the inner layer component 6 from one end and pushing it horizontally; after the double-layer component 4 is connected, removing the lubricants; and using friction to limit and fix the outer layer component 5 and the second inner support member 2.

[0048] When manufacturing double-layer precast components in the factory, first select an appropriate specification of elastic inner support type limiting connection device 100 according to the gap size between the inner layer component 6 and the outer layer component 5. During installation, first install the first inner support component 1 on the inner layer component 6 of the double-layer precast component by welding or bolting at certain intervals. Then press the second inner support component 2 and the spring 31 into the opening and rotate 90° to combine it with the first inner support component 1 to form the elastic inner support type limiting connection device 100. After all the elastic inner support type limiting connection devices 100 are assembled, lubrication measures can be taken on the top of the friction plate 21. Then, the outer layer component 5 is pushed horizontally from one end onto the end of the inner layer component 6. After the inner layer component 6 and the outer layer component 5 are connected, measures can be taken to remove the lubricant so that the inner layer component 6 and the outer layer component 5 are connected by friction. According to the requirements, fireproof material filling and other manufacturing processes can be added to the gap of the double-layer precast component to form a product for application in the corresponding field.

[0049] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A flexible internal support type limiting connection device, characterized in that: include: The first inner support member is used to be fixedly connected to the inner or outer component of the double-layer prefabricated component. When the first inner support is fixedly connected to the inner layer of the double-layer prefabricated component, one end of the second inner support is used to abut against the outer layer of the double-layer prefabricated component; when the first inner support is fixedly connected to the outer layer of the double-layer prefabricated component, one end of the second inner support is used to abut against the inner layer of the double-layer prefabricated component; and the other end of the second inner support is used to slide with the first inner support in a direction perpendicular to the side wall of the inner layer of the component. as well as An elastic element, one end of which is detachably fixedly connected to the second inner support element, and the other end of which is used to abut against the first inner support element. The elastic element can drive the second inner support element to abut against the outer layer component or the inner layer component and complete the limiting and fixing through friction. The first inner support member includes a connecting plate and a first guide cylinder. The first guide cylinder is vertically and fixedly connected to the connecting plate. The connecting plate is used to fixally connect to the inner layer component. The second inner support member can slide along the first guide cylinder. The second inner support includes a second guide cylinder and a friction plate. The second guide cylinder is sleeved on the outside of the first guide cylinder and can slide along the first guide cylinder. The interiors of the first guide cylinder and the second guide cylinder form an elastic element receiving space. The elastic element is disposed in the elastic element receiving space, and one end of the elastic element is detachably fixedly connected to the friction plate, and the other end abuts against the connecting plate. The elastic element includes a fixing bolt, a fastening washer, and a spring. The friction plate is provided with a threaded hole. The fixing bolt is used to thread into the threaded hole to fix the end of the spring to the friction plate. The fastening washer is used to be disposed between the fixed end of the spring and the nut of the fixing bolt. The edge of the first guide cylinder at the end away from the connecting plate extends outward to form a first limiting ring. The first limiting ring is provided with at least one opening. The second guide cylinder at the end away from the friction plate is provided with a second limiting ring. The second limiting ring is provided corresponding to the opening. The second limiting ring is used to pass through the corresponding opening so that the second guide cylinder is sleeved on the outside of the first guide cylinder.

2. The elastic internal support type limiting connection device according to claim 1, characterized in that: The number of openings is two, and the two openings are symmetrically arranged about the axis of the first guide cylinder.

3. The elastic internal support type limiting connection device according to claim 2, characterized in that: The inner diameter of the second limiting ring is smaller than the outer diameter of the first limiting ring, and greater than or equal to the outer diameter of the first guide cylinder. The inner diameter of the second guide cylinder is greater than the outer diameter of the first limiting ring.

4. A double-layer prefabricated component, characterized in that: include: Multiple elastic internal support type limiting connection devices as described in any one of claims 1 to 3; The inner layer component; The outer layer component; The inner layer component is sleeved inside the outer layer component and is limited and fixed by the elastic inner support type limiting connection device according to any one of claims 1 to 3.

5. A method for producing a double-layer precast component as described in claim 4, characterized in that: Includes the following steps: Multiple first inner support members are fixedly connected to the inner layer of the double-layer prefabricated component at certain intervals. Then, each second inner support member and each elastic member are assembled with each first inner support member. After lubricating members are provided on the second inner support members and the outer layer component, the outer layer component is sleeved on the end of the inner layer component from one end and pushed in horizontally. After the double-layer prefabricated component is connected, the lubricating members are removed. The outer layer component and the second inner support member are limited and fixed by friction.

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