Splicing type vibration isolator outer sleeve

Abstract

The utility model discloses a splicing type vibration isolator outer sleeve which is divided into an upper section and a lower section, an upper sleeve body is similar to a traditional vibration isolator and is a metal sleeve, a jacking plate and a supporting plate are arranged on the upper sleeve body and play a main role in bearing force, and the lower sleeve body is replaced by materials which are easy to machine and lower in cost. When the thickness of the floating slab is changed and the length of the outer sleeve is required to be changed, the lower sleeve body with a longer length can be selected, and the overall height of the outer sleeve is flexibly adjusted through cutting, so that the processing period can be shortened, the use of metal materials is saved, the mold opening cost can be reduced, and the time and the economic cost are greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of rail transit technology, specifically relating to a spliced ​​vibration isolator outer sleeve. Background Technology

[0002] The floating slab concrete interacts with the outer sleeve to transfer the load to the outer sleeve. The outer sleeve then transfers the load to the top cover plate of the steel spring vibration isolator through its support surface or support claws, and finally to the base plate through the vibration isolator, thus achieving the vibration isolation function. Steel spring floating slabs can be divided into precast slabs and cast-in-place slabs depending on the manufacturing process. The track bed slab of the vibration isolator floating slab consists of a reinforced concrete precast or cast-in-place slab and an outer sleeve cast within the track bed. The outer sleeve plays a crucial role in the force transmission system of the steel spring floating slab, acting as a "bridge" between the upper and lower sections. During the production of the floating slab, the outer sleeve is cast integrally with the floating slab. Steel spring floating slab outer sleeves can be divided into two types based on manufacturing process and appearance: welded and cast. Cast outer sleeves are integrally cast, while welded outer sleeves are made by cutting steel pipes and welding them to three lifting plates and three support plates. Commonly used welded outer sleeves include... Figure 1 As shown, commonly used cast outer sleeves include... Figure 2 As shown.

[0003] In actual construction, sometimes due to changes in construction control factors, the thickness of the floating slab may need to be temporarily changed to adapt to the on-site engineering conditions. However, the fabrication of the outer sleeve mold often takes a certain amount of time, which has a significant impact on the construction period. Currently, there is no efficient and flexible solution for adjusting the height of the outer sleeve. Utility Model Content

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, the inventors conducted in-depth research and designed a spliced ​​vibration isolator outer sleeve. This outer sleeve is divided into upper and lower sections. The upper sleeve is similar to that of a traditional vibration isolator, consisting of a metal cylinder. The upper sleeve is equipped with a lifting plate and a support plate, which serve as the primary load-bearing components. The lower sleeve is made of a material that is easy to process and has lower costs. When the thickness of the floating plate changes, requiring a corresponding change in the length of the outer sleeve, a longer lower sleeve can be selected. The overall height of the outer sleeve can be flexibly adjusted by cutting, thus saving on metal material usage, reducing mold costs, and significantly lowering economic costs. This completes the present invention.

[0005] Specifically, the purpose of this utility model is to provide a spliced ​​vibration isolator outer sleeve, which includes a detachable upper cylinder 1 and a lower cylinder 2.

[0006] The upper cylinder 1 is a metal cylinder, and the lower cylinder 2 is a nylon cylinder;

[0007] The upper cylinder 1 and the lower cylinder 2 are fastened together by bolts.

[0008] A lifting plate 3 and a support plate 4 are provided in the upper cylinder 1;

[0009] When the steel spring floating plate is lifted, the weight of the floating plate and the steel rail is supported by the lifting plate 3;

[0010] After the lifting is completed, the floating plate and its upper load are supported by the support plate 4.

[0011] The lower cylinder 2 includes a main cylinder 21 and a sidewall 22;

[0012] The main body 21 has the same outline dimensions as the upper body 1 and abuts against each other;

[0013] The baffle 22 is located on the outer side above the main body cylinder 21. The main body cylinder 21 and the baffle 22 are integrally cast. When the upper cylinder 1 abuts against the main body cylinder 21, the upper cylinder 1 is embedded in the baffle 22, and the baffle 22 provides horizontal limitation for the upper cylinder 1.

[0014] Among them, an upper bolt connector 5 is provided at the bottom of the upper cylinder 1.

[0015] A lower bolt connector 6 is provided at the top of the retaining edge 22;

[0016] Both the upper bolt connector 5 and the lower bolt connector 6 have through holes for bolts to pass through.

[0017] In this case, the shape and size of any cross-section of the main body 21 of the lower cylinder 2 remain consistent in the vertical direction.

[0018] The lower cylinder 2 includes two height specifications: standard height and extended height.

[0019] Among them, after the lower cylinder 2 of the standard height specification is installed in contact with the upper cylinder 1, the overall height of the spliced ​​vibration isolator outer sleeve is consistent with the thickness of the ordinary floating plate.

[0020] After the extended height specification of the lower cylinder 2 is installed and abuts against the upper cylinder 1, the overall height of the spliced ​​vibration isolator outer sleeve is greater than the thickness of the ordinary floating plate; before installing the spliced ​​vibration isolator outer sleeve, the lower cylinder 2 is cut according to the actual thickness of the floating plate.

[0021] The beneficial effects of this utility model include:

[0022] (1) The splicing vibration isolator outer sleeve provided by this utility model can flexibly adapt to the increase or decrease of the thickness of the temporary floating plate, and shorten the production cycle;

[0023] (2) The spliced ​​vibration isolator outer sleeve provided by this utility model reduces the amount of cast iron / steel material by nearly half, thereby reducing material costs. Attached Figure Description

[0024] Figure 1 A schematic diagram of a commonly used welded outer sleeve is shown;

[0025] Figure 2 A schematic diagram of a commonly used cast outer sleeve is shown;

[0026] Figure 3 A schematic diagram of the upper cylinder of the outer sleeve of a cast-type spliced ​​vibration isolator is shown;

[0027] Figure 4 A schematic diagram of the lower cylinder of the outer sleeve of a cast-type spliced ​​vibration isolator is shown;

[0028] Figure 5 This diagram shows the assembly of the outer sleeve of a cast-type spliced ​​vibration isolator;

[0029] Figure 6 A schematic diagram showing the installation of the outer sleeve of a cast-type spliced ​​vibration isolator into a floating plate is shown.

[0030] Figure 7 A schematic diagram of the upper cylinder of the outer sleeve of a welded spliced ​​vibration isolator is shown;

[0031] Figure 8 A schematic diagram of the lower cylinder of the outer sleeve of a welded spliced ​​vibration isolator is shown;

[0032] Figure 9 This diagram shows the assembly of the outer sleeve of a welded splice type vibration isolator;

[0033] Figure 10 This diagram shows the installation of the outer sleeve of a welded splice type vibration isolator into a floating plate.

[0034] Explanation of icon numbers:

[0035] 1-Upper cylinder

[0036] 2-Lower cylinder

[0037] 21-Main Body Tube

[0038] 22-Side guard

[0039] 3-Lifting plate

[0040] 4-Support plate

[0041] 5-Upper bolt connection

[0042] 6-Lower Bolt Connector

[0043] 7-Floating Board

[0044] 8-Vibration Isolator

[0045] 9-Gasket

[0046] 10-Protrusion Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present invention will become clearer and more apparent. While various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0048] This utility model provides a spliced ​​type vibration isolator outer sleeve, such as Figures 3 to 10 As shown, the spliced ​​vibration isolator outer sleeve includes a detachable upper cylinder 1 and a lower cylinder 2.

[0049] The upper cylinder 1 is a metal cylinder, that is, a cylinder made of cast iron or steel; the lower cylinder 2 is a nylon cylinder, and the nylon is polyamide fiber.

[0050] The upper cylinder 1 and the lower cylinder 2 are fastened together by bolts.

[0051] In a preferred embodiment, a lifting plate 3 and a support plate 4 are provided in the upper cylinder 1;

[0052] When the steel spring floating plate is lifted, the weight of the floating plate 7 and the steel rail is supported by the lifting plate 3;

[0053] After the lifting is completed, the floating plate 7 and its upper load are supported by the support plate 4. That is, the load and the weight of the floating plate are transferred to the pads 9 and vibration isolators 8 below through the support plate.

[0054] Preferably, the upper cylinder 1 has a similar structural shape to a common vibration isolator, except that its length is smaller, which is equivalent to a common vibration isolator with only the upper half.

[0055] Both the cast-type and welded-type upper cylinder bodies 1 and the upper cylinder body 1 of the outer sleeve are provided with outwardly protruding bosses 10 to increase the bonding force between the upper cylinder body and the floating plate, including the mechanical interlocking force between the uneven parts of the cylinder body and the concrete of the floating plate, the bonding force between the cement slurry and the surface of the outer sleeve, and the frictional resistance generated by the shrinkage of the concrete and the tightness of the outer sleeve. The force between the upper cylinder body 1 and the floating plate is sufficient to meet the force requirements between the outer sleeve of the spliced ​​vibration isolator and the floating plate.

[0056] Preferably, the lower cylinder 2 includes a main cylinder 21 and a retaining edge 22;

[0057] The main body 21 has the same outline dimensions as the upper body 1 and abuts against each other;

[0058] The retaining edge 22 is located on the upper outer side of the main body cylinder 21. The main body cylinder 21 and the retaining edge 22 are integrally cast. When the upper cylinder 1 abuts against the main body cylinder 21, the upper cylinder 1 is embedded in the retaining edge 22, which provides horizontal limitation for the upper cylinder 1. The retaining edge 22 also serves as an auxiliary alignment tool.

[0059] Preferably, an upper bolt connector 5 is provided at the bottom of the upper cylinder 1; preferably, three upper bolt connectors 5 are provided.

[0060] A lower bolt connector 6 is provided at the top of the retaining edge 22; preferably, three lower bolt connectors 6 are provided.

[0061] Both the upper bolt connector 5 and the lower bolt connector 6 have through holes for bolts to pass through, so that the upper cylinder 1 is fixed to the lower cylinder 2 by the bolts passing through the through holes.

[0062] Preferably, the shape and size of the main body 21 of the lower cylinder 2 remain consistent in any cross-section in the vertical direction. That is, the main body 21 is a cylinder with uniform size and no gradual change, allowing it to be cut at any height.

[0063] Preferably, the lower cylinder 2 includes two height specifications: a standard height and an extended height. The main body 21 of the standard height lower cylinder has a height of 147mm, the main body 21 of the extended height lower cylinder has a height of 205mm, and the upper cylinder has a height of 177mm.

[0064] Among them, after the lower cylinder 2 of the standard height specification is installed in contact with the upper cylinder 1, the overall height of the spliced ​​vibration isolator outer sleeve is consistent with the thickness of the ordinary floating plate.

[0065] After the extended height specification of the lower cylinder 2 is installed and abuts against the upper cylinder 1, the overall height of the spliced ​​vibration isolator outer sleeve is greater than the thickness of the ordinary floating plate. Before installing the spliced ​​vibration isolator outer sleeve, the lower cylinder 2 is cut according to the actual thickness of the floating plate so that the thickness of the vibration isolator outer sleeve is consistent with that of the floating plate.

[0066] This utility model also provides a construction and installation method for a vibration isolator outer sleeve on a floating plate with a temporary change in plate thickness. In this method, the spliced ​​vibration isolator outer sleeve described above is installed into the floating plate.

[0067] Preferably, the method includes the following steps:

[0068] Step 1: Obtain the expected thickness of the floating plate of the outer sleeve of the vibration isolator to be installed, and select the height specification of the lower cylinder 2 in the spliced ​​vibration isolator outer sleeve based on the expected thickness of the floating plate; preferably, when the floating plate is a normal floating plate, select the lower cylinder 2 with a normal height specification.

[0069] When the thickness of the floating plate is greater than that of the ordinary floating plate, the lower cylinder 2 with an extended height specification is selected. In this case, the floating plate is a floating plate with a temporary change in plate thickness.

[0070] When selecting the extended height specification of the lower cylinder 2, the lower cylinder 2 is cut so that the height of the spliced ​​vibration isolator outer sleeve is consistent with the expected thickness of the floating plate.

[0071] Step 2: Install the upper cylinder 1 onto the lower cylinder 2 and secure it with bolts;

[0072] Step 3: Install the outer sleeve of the spliced ​​vibration isolator and pour the floating plate.

[0073] Example

[0074] 500 floating slabs are produced in the factory, and vibration isolator sleeves need to be pre-embedded on the floating slabs. Among them, 200 floating slabs need to be thickened, and the remaining 300 floating slabs are ordinary floating slabs. The thickness of the ordinary floating slabs is 340mm, and the thickness of the thickened floating slabs is 355mm.

[0075] Construction and installation were carried out on all 500 floating slabs. Figure 3 , Figure 4 , Figure 5 and Figure 6 The spliced ​​vibration isolator outer sleeve shown in the image; the specific construction and installation process is as follows:

[0076] Step 1: Obtain the expected thickness of the floating plate of the outer sleeve of the vibration isolator to be installed, and select the height specification of the lower cylinder 2 in the spliced ​​vibration isolator outer sleeve based on the expected thickness of the floating plate; when the floating plate is a regular floating plate, select the lower cylinder 2 with a regular height specification.

[0077] When floating slabs are used in thickened road sections, select the lower cylinder 2 with an extended height specification;

[0078] When selecting the extended height specification of the lower cylinder 2, the lower cylinder 2 is cut so that the height of the spliced ​​vibration isolator outer sleeve is consistent with the thickness of the thickened road section floating plate.

[0079] Step 2: Install the upper cylinder 1 onto the lower cylinder 2 and secure it with bolts;

[0080] Step 3: Install the outer sleeve of the spliced ​​vibration isolator and pour the floating plate.

[0081] Twenty operators worked together and completed the production and pouring of the aforementioned 500 floating slabs in 320 hours.

[0082] A total of 5,000 spliced ​​vibration isolator outer sleeves were installed on the 500 floating slabs, with a total material cost of 1 million yuan for the spliced ​​vibration isolator outer sleeves.

[0083] Comparative Example

[0084] 500 floating slabs are produced in the factory, and vibration isolator sleeves need to be pre-embedded on the floating slabs. Among them, 200 floating slabs need to be thickened, and the remaining 300 floating slabs are ordinary floating slabs. The thickness of the ordinary floating slabs is 340mm, and the thickness of the thickened floating slabs is 355mm.

[0085] For the 300 floating slabs, ordinary vibration isolator outer sleeves were installed. These ordinary vibration isolator outer sleeves were existing ones in stock. For the 200 thickened floating slabs, a total of 2,000 vibration isolator outer sleeves, new molds needed to be made and manufactured. The mold making process took 15 days.

[0086] Twenty operators worked together and completed the production and pouring of the aforementioned 500 floating slabs in 320 hours.

[0087] A total of 3,000 ordinary vibration isolator outer sleeves and 2,000 extended vibration isolator outer sleeves were installed on the 500 floating slabs. The total material cost of the ordinary vibration isolator outer sleeves was 900,000 yuan, the cost of the 2,000 extended vibration isolator outer sleeves was 700,000 yuan, and the mold cost was 150,000 yuan, for a total of 1,750,000 yuan.

[0088] As can be seen from the above embodiments and comparative examples, the spliced ​​vibration isolator outer sleeve and the construction and installation method using it provided in this application can improve construction efficiency, reduce construction costs, and enhance enterprise competitiveness while ensuring safety.

[0089] The present invention has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and serve only an illustrative purpose. Based on this, various substitutions and improvements can be made to the present invention, all of which fall within the protection scope of the present invention.

Claims

1. A spliced ​​vibration isolator outer sleeve, characterized in that, The spliced ​​vibration isolator outer sleeve includes a detachable upper cylinder (1) and a lower cylinder (2). The upper cylinder (1) is a metal cylinder, and the lower cylinder (2) is a nylon cylinder. The upper cylinder (1) and the lower cylinder (2) are fastened together by bolts.

2. The spliced ​​vibration isolator outer sleeve according to claim 1, characterized in that, A lifting plate (3) and a support plate (4) are provided in the upper cylinder (1); When the steel spring floating plate is lifted, the weight of the floating plate and the rail is supported by the lifting plate (3); After the lifting is completed, the floating plate and its upper load are supported by the support plate (4).

3. The spliced ​​vibration isolator outer sleeve according to claim 1, characterized in that, The lower cylinder (2) includes the main cylinder (21) and the sidewall (22); The main body (21) and the upper body (1) have the same outline dimensions and abut against each other; The baffle (22) is located on the outer side above the main body cylinder (21). The main body cylinder (21) and the baffle (22) are integrally cast. When the upper cylinder (1) abuts against the main body cylinder (21), the upper cylinder (1) is embedded in the baffle (22), and the baffle (22) limits the upper cylinder (1) horizontally.

4. The spliced ​​vibration isolator outer sleeve according to claim 1, characterized in that, An upper bolt connector (5) is provided at the bottom of the upper cylinder (1). A lower bolt connector (6) is provided at the top of the retaining edge (22); Both the upper bolt connector (5) and the lower bolt connector (6) have through holes for bolts to pass through.

5. The spliced ​​vibration isolator outer sleeve according to claim 3, characterized in that, The shape and size of the main body (21) of the lower cylinder (2) remain consistent in any cross-section in the vertical direction.

6. The spliced ​​vibration isolator outer sleeve according to claim 3, characterized in that, The lower cylinder (2) includes two height specifications: standard height and extended height. Among them, after the lower cylinder (2) of the ordinary height specification is installed in contact with the upper cylinder (1), the overall height of the spliced ​​vibration isolator outer sleeve is consistent with the thickness of the ordinary floating plate; After the extended height specification of the lower cylinder (2) is installed in contact with the upper cylinder (1), the overall height of the spliced ​​vibration isolator outer sleeve is greater than the thickness of the ordinary floating plate; before installing the spliced ​​vibration isolator outer sleeve, the lower cylinder (2) is cut according to the actual thickness of the floating plate.

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