Building component loading device
By installing double-layer sleeves and heat insulation components on the outside of the column cylinder and loading column of the building component loading device, the problem of rubber component aging under high temperature environment is solved, the service life of the device is extended and the maintenance cost is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-06
AI Technical Summary
The rubber parts of the fire resistance limit test device for building horizontal components are prone to aging under high temperature conditions, leading to oil leakage problems.
Double sleeves are installed outside the column and loading column of the device. Insulation materials such as mica sheets, rock wool boards or aerogel felts are installed inside the sleeves to reduce heat transfer and protect rubber gaskets and seals.
It extends the service life of rubber parts, reduces maintenance costs, and improves the service life of the equipment.
Smart Images

Figure CN223977192U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of loading test devices, specifically to a loading device for building components. Background Technology
[0002] The fire resistance limit testing device for horizontal building components is used to test the fire resistance limit, thermal insulation performance, and structural stability of horizontal building components (such as beams, slabs, and floor slabs) under standard fire conditions. This device integrates modern technology and safety standards, and is an indispensable testing tool for ensuring the safe design of buildings.
[0003] Currently, the fire resistance limit testing device for building horizontal components is operating well in its initial stages. However, after prolonged use, due to the frequent testing activities, the defects of the equipment have gradually become apparent. In particular, the device needs to be tested frequently in high-temperature environments, which can accelerate the aging of the internal hydraulic rubber gaskets and seals, leading to oil leaks.
[0004] Therefore, existing technologies need to be improved. Utility Model Content
[0005] The technical problem to be solved by this utility model is that the rubber parts of the current fire resistance limit test device for building horizontal components are prone to accelerated aging in high temperature environment. The purpose is to provide a building component loading device that adopts corresponding technical means and has the beneficial effects of good heat insulation and long service life.
[0006] This utility model is achieved through the following technical solution:
[0007] This utility model provides a building component loading device, which includes a column and a loading column inserted into the column. A loading plate is provided at the bottom of the loading column. A first sleeve is sleeved on the outside of the column. A second sleeve is sleeved on the outside of the first sleeve. The second sleeve is slidably connected to the first sleeve and connected to the loading plate. Heat insulation components are provided inside the first sleeve and the second sleeve.
[0008] Furthermore, in this utility model, the first sleeve includes two first semi-circular shells that form a cylinder, and a first connecting strip is provided on the side of the first semi-circular shell. The second sleeve includes two second semi-circular shells that form a cylinder, and a sliding groove is provided on the inner wall of the second semi-circular shell. The two aligned first connecting strips are slidably disposed in the sliding groove.
[0009] Furthermore, in this utility model, the aforementioned groove is provided with a ball bearing, and the first connecting strip is provided with a groove adapted to the ball bearing.
[0010] Furthermore, in this utility model, a plurality of the aforementioned balls are arranged in the groove described above.
[0011] Furthermore, in this utility model, the first connecting strip is provided with a countersunk hole, and a first bolt not exceeding the end face of the countersunk hole is inserted into the countersunk hole.
[0012] Furthermore, in this invention, the aforementioned groove is located in the middle part of the second semi-circular shell.
[0013] Furthermore, in this utility model, a second connecting strip is provided on the side of the second semi-circular shell, and the two aligned second connecting strips are connected by a second bolt.
[0014] Furthermore, in this utility model, the interior of the first semi-circular shell and the second semi-circular shell is provided with a chamber for accommodating the heat insulation member, and the sides of the first semi-circular shell and the second semi-circular shell are provided with openings communicating with the chambers.
[0015] Furthermore, in this invention, both the second sleeve and the loading plate are provided with interconnected flanges.
[0016] Furthermore, in this utility model, the aforementioned heat insulation component is configured as one or more of mica sheets, rock wool boards, aerogel felts, and polystyrene boards.
[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0018] This utility model relates to a building component loading device. A first sleeve surrounds the outside of the column cylinder, and a second sleeve surrounds the outside of the loading column. Since heat insulation components are installed inside both the first and second sleeves, they protect the column cylinder and the loading column. This reduces heat transfer to the column cylinder and the loading column, thereby lowering their temperature, protecting the rubber gaskets and seals inside the column cylinder, slowing down their aging, and extending their service life. This, in turn, extends the service life of the building component loading device. It also reduces the frequency of maintenance and lowers maintenance costs. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0020] Figure 1 This is a cross-sectional schematic diagram of the building component loading device of this utility model;
[0021] Figure 2 This is a partial cross-sectional schematic diagram of the first sleeve of this utility model;
[0022] Figure 3 This is a cross-sectional schematic diagram of the first sleeve and the second sleeve of this utility model;
[0023] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.
[0024] The markings and corresponding component names in the attached diagram are as follows: 1-Column, 2-Loading column, 3-Loading plate, 4-First sleeve, 401-First semi-circular shell, 402-First connecting strip, 403-Counterhole, 404-Groove, 405-First bolt, 5-Second sleeve, 501-Second semi-circular shell, 502-Slide groove, 503-Second connecting strip, 504-Second bolt, 6-Heat insulation component, 7-Ball bearing. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only for explaining the present utility model and are not intended to limit the present utility model. The following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the present utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.
[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] Example 1
[0028] Combination Figures 1-4 As shown, this is a building component loading device according to Embodiment 1 of the present invention, and its specific structure is described below.
[0029] Reference Figure 1As shown, the building component loading device mainly consists of four parts: column cylinder 1, loading column 2, first sleeve 4, and second sleeve 5. The loading column 2 is installed inside the column cylinder 1, and a loading plate 3 is installed at the bottom of the loading column 2. The loading column 2 and column cylinder 1 adopt some structures of existing building horizontal component fire resistance limit testing devices, and the building horizontal component fire resistance limit testing device is also equipped with a hydraulic system to control the rise and fall of the loading column 2.
[0030] In this embodiment, combined with Figure 1 and Figure 3 As shown, the first sleeve 4 surrounds the outside of the column 1, and the first sleeve 4 and the column 1 are fixedly connected. The second sleeve 5 surrounds the outside of the first sleeve 4, and the second sleeve 5 is slidably connected to the first sleeve 4. The bottom end of the second sleeve 5 is fixedly connected to the loading plate 3, so the second sleeve 5 can slide up and down along the first sleeve 4 to correspond to the up and down movement of the loading column 2 and the loading plate 3.
[0031] It should be noted that, as Figure 1 As shown, a flange is provided at the bottom of the second sleeve 5, and a flange is also provided at the top of the loading plate 3. During installation, the flanges are vertically aligned, and then bolts are inserted into the holes of the flanges to fix the two flanges, thereby fixing the loading plate 3 and the second sleeve 5.
[0032] In this embodiment, combined with Figure 1 and Figure 2 As shown, the first sleeve 4 is equipped with a heat insulation component 6, and the second sleeve 5 is also equipped with a heat insulation component 6. The heat insulation component 6 is one of mica sheet, rock wool board, aerogel felt, or polystyrene board, or multiple heat insulation components 6 can be combined for practical use. The first sleeve 4 and the second sleeve 5 have good heat insulation effect, reducing the impact of high temperature environment on the rubber gasket and rubber seal inside the column 1, and delaying the aging of rubber components.
[0033] Example 2
[0034] The building component loading device in this embodiment is a further optimization based on Embodiment 1, and its specific structure is described below.
[0035] Combination Figure 1 and Figure 3 As shown, the first sleeve 4 includes two first semi-circular shells 401 that form a cylinder, and the second sleeve 5 includes two second semi-circular shells 501 that form a cylinder. Figure 3 and Figure 4As shown, first connecting strips 402 are installed on the upper and lower sides of the two first semi-circular shells 401. The two upper first connecting strips 402 are aligned with each other, and the left side wall of the left first connecting strip 402 and the right side wall of the right first connecting strip 402 have countersunk holes 403. The two countersunk holes 403 are horizontally aligned and are fixedly connected by inserting first bolts 405. The two lower first connecting strips 402 are connected in the same way. The left end of the first bolt 405 does not extend beyond the left end face of the left countersunk hole 403, and the right end of the first bolt 405 does not extend beyond the right end face of the right countersunk hole 403, so as to avoid affecting the sliding of the second sleeve 5.
[0036] Furthermore, in combination Figure 3 and Figure 4 As shown, two second connecting strips 503 are installed on the left and right sides of the two second semicircular shells 501. The two second connecting strips 503 on the left are aligned with each other, and the two second connecting strips 503 on the right are aligned with each other. The second bolts 504 are inserted into the vertical holes of the second connecting strips 503 to fix the two second semicircular shells 501 together, making installation and disassembly very convenient.
[0037] In this embodiment, combined with Figure 3 and Figure 4 As shown, a groove 502 is provided in the middle of the inner wall of the second semi-circular shell 501. The groove 502 is used to accommodate the two first connecting bars 402 on the upper side or the two first connecting bars 402 on the lower side. The first connecting bars 402 slide along the groove 502.
[0038] Furthermore, such as Figure 3 and Figure 4 As shown, in order to make the second semi-circular shell 501 slide more smoothly, three balls 7 are embedded in the bottom of the groove 502, and an arc-shaped groove 404 is opened in the middle of the two first connecting bars 402. The groove wall of the groove 404 contacts the balls 7 to facilitate the rolling of the balls 7.
[0039] Example 3
[0040] The building component loading device in this embodiment is a further optimization based on Embodiment 2, and its specific structure is described below.
[0041] Combination Figure 3 As shown, the first semi-circular shell 401 and the second semi-circular shell 501 have chambers inside for accommodating the heat insulation member 6. The chambers extend to either the side of the first semi-circular shell 401 or the side of the second semi-circular shell 501, forming openings on the sides of the first semi-circular shell 401 and the second semi-circular shell 501. These openings allow for easy insertion and removal of the heat insulation member 6 from the chambers, making replacement of the heat insulation member 6 very convenient.
[0042] The working principle of the building component loading device of this utility model is as follows:
[0043] This utility model's building component loading device includes a first sleeve 4 encasing the outside of the column cylinder 1 and a second sleeve 5 encasing the outside of the loading column 2. Since heat insulation components 6 are installed inside both the first sleeve 4 and the second sleeve 5, they provide protection for the column cylinder 1 and the loading column 2. This reduces heat transfer to the column cylinder 1 and the loading column 2, thereby lowering their temperature, protecting the rubber gaskets and rubber seals inside the column cylinder 1, slowing down their aging rate, and extending their service life, thus extending the service life of the building component loading device. It also reduces the frequency of maintenance for the building component loading device, lowering maintenance costs.
[0044] In summary, this utility model provides a building component loading device, which includes a column cylinder 1 and a loading column 2 inserted into the column cylinder 1. A loading plate 3 is provided at the bottom of the loading column 2. A first sleeve 4 is sleeved on the outside of the column cylinder 1, and a second sleeve 5 is sleeved on the outside of the first sleeve 4. The second sleeve 5 is slidably connected to the first sleeve 4 and connected to the loading plate 3. A heat insulation component 6 is provided inside the first sleeve 4 and the second sleeve 5. The first sleeve 4 includes two first semi-circular shells 401 forming a cylinder, and a first connecting strip 402 is provided on the side of the first semi-circular shell 401. The second sleeve 5 includes two second semi-circular shells 501 forming a cylinder. A sliding groove 502 is provided on the inner wall of the second semi-circular shell 501, and two aligned first connecting strips 402 are slidably disposed in the sliding groove 502. A ball bearing 7 is provided in the sliding groove 502, and the first connecting strip 402 is provided with a rolling groove 404 adapted to the ball bearing 7. Multiple balls bearing 7 are provided in one sliding groove 502. The first connecting strip 402 is provided with a countersunk hole 403, into which a first bolt 405 is inserted, not exceeding the end face of the countersunk hole 403. A sliding groove 502 is located in the middle of the second semi-circular shell 501. A second connecting strip 503 is provided on the side of the second semi-circular shell 501, and two aligned second connecting strips 503 are connected by a second bolt 504. The interiors of the first and second semi-circular shells 401 and 501 are provided with chambers to accommodate the heat insulation component 6, and the sides of the first and second semi-circular shells 401 and 501 are provided with openings communicating with the chambers. The second sleeve 5 and the loading plate 3 are both provided with interconnected flanges. The heat insulation component 6 is configured as one or more of mica sheets, rock wool boards, aerogel felt, and polystyrene boards. Therefore, the building component loading device provided by this utility model has the beneficial effects of good heat insulation effect and long service life.
[0045] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A building component loading device, characterized in that, The application relates to a loading column, which comprises a cylinder (1) and a loading column (2) inserted into the cylinder (1), the bottom of the loading column (2) is provided with a loading plate (3), the outside of the cylinder (1) is sleeved with a first sleeve (4), the outside of the first sleeve (4) is sleeved with a second sleeve (5), the second sleeve (5) is in sliding connection with the first sleeve (4), the second sleeve (5) is connected with the loading plate (3), and the inside of the first sleeve (4) and the second sleeve (5) is provided with a heat insulation piece (6).
2. The building component loading device of claim 1, wherein, The first sleeve (4) comprises two first half-cylinder shells (401) forming a cylinder, the side of the first half-cylinder shell (401) is provided with a first connecting strip (402), the second sleeve (5) comprises two second half-cylinder shells (501) forming a cylinder, the inner wall of the second half-cylinder shell (501) is provided with a sliding groove (502), and two aligned first connecting strips (402) are slidingly arranged in the sliding groove (502).
3. The building component loading device of claim 2, wherein, The sliding groove (502) is provided with a plurality of rolling balls (7).
4. The building component loading device of claim 3, wherein, The first connecting strip (402) is provided with a counterbore (403), and a first bolt (405) not exceeding the end face of the counterbore (403) is inserted into the counterbore (403).
5. The building component loading device of claim 2, wherein, The sliding groove (502) is located at the middle part of the second half-cylinder shell (501).
6. The building component loading device of claim 2, wherein, The side of the second half-cylinder shell (501) is provided with a second connecting strip (503), and two aligned second connecting strips (503) are connected through a second bolt (504).
7. The building component loading device of claim 6, wherein, The inside of the first half-cylinder shell (401) and the second half-cylinder shell (501) is provided with a cavity accommodating the heat insulation piece (6), and the side of the first half-cylinder shell (401) and the second half-cylinder shell (501) is provided with an opening in communication with the cavity.
8. The building component loading device of claim 2, wherein, The second sleeve (5) and the loading plate (3) are both provided with flanges connected with each other.
9. The building component loading device of claim 1, wherein, The heat insulation piece (6) is configured to be one or more of a mica sheet, a rock wool board, an aerogel felt and a polystyrene board.
10. A building component loading device according to any one of claims 1 to 9, wherein,