Elevator shaft formwork
Patent Information
- Application Number
- CN202522187782.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-10-15
AI Technical Summary
[0003]为了克服现有技术的不足,本实用新型提供一种电梯井筒模装置,能够解决现有的电梯井铝合金模板在施工过程中需拆装的问题
[0014] The beneficial effects of this invention are as follows: During construction, the device is located at the inner corner of the elevator shaft. By rotating the rod, the nut drives the slider to rise and fall, changing the angle between the left and right sets of connecting rods and the first and second support bars. This allows the two sets of connecting rods to apply pressure to the first and second support bars from two different directions, thereby supporting the concrete on both sides of the device. After pouring, the rod rotates in the opposite direction, the nut drives the slider to retract, and the pressure applied by the connecting rods to the first and second support bars on both sides is reduced. At this point, the entire device can be hoisted to the next floor by a tower crane for the next construction phase. During construction, the entire device does not need to be disassembled and can be reused, improving construction efficiency, avoiding risks during disassembly and assembly, and facilitating unified quality control.
Smart Images

Figure CN224717401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction, specifically to an elevator shaft formwork device. Background Technology
[0002] Aluminum alloy formwork is one of the commonly used materials in the main construction of current building projects. During the construction of elevator shafts, workers need to assemble the formwork piece by piece. After the concrete is reinforced and poured, the workers then dismantle the aluminum formwork piece by piece and pass it up to the next floor to continue assembling. The process of manually installing and dismantling the aluminum formwork of elevator shafts greatly reduces the construction time and poses risks and makes it difficult to control the quality. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an elevator shaft formwork device, which can solve the problem of the need to disassemble and assemble existing aluminum alloy formwork for elevator shafts during construction.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: An elevator shaft mold device is provided, comprising a profile, a lead screw, and several connecting rods. The profile includes a supporting body, a first support bar, and a second support bar, which are arranged opposite to each other on both sides of the supporting body. The lead screw includes a threaded rod body and a nut. The rod body is rotatably mounted on the supporting body and is located between the first support bar and the second support bar. A slider is mounted on the nut. The several connecting rods are divided into two groups, left and right. One group of connecting rods connects the first support bar and the slider, and the other group of connecting rods connects the second support bar and the slider.
[0005] As a further improvement to the above technical solution, two nuts are provided, and the sliders are installed on both nuts. The connecting rods are divided into upper and lower groups, and the two groups of connecting rods are respectively connected to the two sliders.
[0006] As a further improvement to the above technical solution, each slider is connected to four connecting rods, wherein two connecting rods are connected between the first support bar and the slider, and the other two connecting rods are connected between the second support bar and the slider.
[0007] As a further improvement to the above technical solution, the two nuts are connected to the rod body through two sections of threads with opposite directions.
[0008] As a further improvement to the above technical solution, the support body is provided with two bearing seats, each bearing seat is provided with a bearing, and the two ends of the rod are respectively passed through the two bearings and connected to the two bearings respectively.
[0009] As a further improvement to the above technical solution, the support body is provided with a T-slot, and the bearing seat is installed on the support body by a T-nut, and the T-nut is installed in the T-slot.
[0010] As a further improvement to the above technical solution, both the first support bar and the second support bar are provided with adjustment blocks, one end of the connecting rod is hinged to the adjustment block through a guide sleeve, and the other end of the connecting rod is hinged to the slider.
[0011] As a further improvement to the above technical solution, both adjustment blocks are provided with a plurality of slots, and the first support bar and the second support bar are provided with through holes, the through holes and the slots being connected by screws.
[0012] As a further improvement to the above technical solution, one end of the rod is connected to a one-way ratchet wrench, and the rotation direction of the one-way ratchet wrench is horizontal.
[0013] As a further improvement to the above technical solution, end caps are fixedly installed at both the upper and lower ends of the support body.
[0014] The beneficial effects of this invention are as follows: During construction, the device is located at the inner corner of the elevator shaft. By rotating the rod, the nut drives the slider to rise and fall, changing the angle between the left and right sets of connecting rods and the first and second support bars. This allows the two sets of connecting rods to apply pressure to the first and second support bars from two different directions, thereby supporting the concrete on both sides of the device. After pouring, the rod rotates in the opposite direction, the nut drives the slider to retract, and the pressure applied by the connecting rods to the first and second support bars on both sides is reduced. At this point, the entire device can be hoisted to the next floor by a tower crane for the next construction phase. During construction, the entire device does not need to be disassembled and can be reused, improving construction efficiency, avoiding risks during disassembly and assembly, and facilitating unified quality control. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This is a schematic diagram of the elevator shaft mold device provided in a preferred embodiment of the present invention;
[0017] Figure 2 This is a partial structural schematic diagram of the elevator shaft mold device provided in a preferred embodiment of the present invention.
[0018] Reference numerals: 1. Profile; 2. Lead screw; 3. Connecting rod;
[0019] 11. Support body; 12. First support bar; 13. Second support bar; 21. Rod; 22. Nut; 111. Bearing seat; 112. Bearing; 113. T-slot; 114. T-nut; 115. End cover plate; 121. Adjusting block; 122. Guide sleeve; 123. Slot; 124. Through hole; 211. One-way ratchet wrench; 221. Slider. Detailed Implementation
[0020] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.
[0021] Please see Figure 1-2A preferred embodiment of this utility model provides an elevator shaft mold device, including a profile 1, a lead screw 2, and several connecting rods 3. The profile 1 includes a support body 11, a first support bar 12, and a second support bar 13, which are arranged opposite to each other on both sides of the support body 11. The lead screw 2 includes a threaded rod body 21 and a nut 22. The rod body 21 is rotatably mounted on the support body 11 and is located between the first support bar 12 and the second support bar 13. A slider 221 is installed on the nut 22. The several connecting rods 3 are divided into two groups, one group of which connects the first support bar 12 and the slider 221, and the other group of which connects the second support bar 13 and the slider 221. During construction, the device is located at the corner of the elevator shaft. By rotating the rod 21, the nut 22 drives the slider 221 to rise and fall, changing the angle between the two sets of connecting rods 3 and the first and second support bars 12 and 13. This allows the two sets of connecting rods 3 to apply pressure to the first and second support bars 12 and 13 from two different directions, thus supporting the concrete on both sides of the device. After pouring, the rod 21 rotates in the opposite direction, the nut 22 drives the slider 221 to retract, and the pressure applied by the connecting rods 3 to the first and second support bars 12 and 13 on both sides is removed. At this point, the entire device can be hoisted to the next floor by a tower crane for the next construction phase. During construction, the entire device does not need to be disassembled and can be reused, improving construction efficiency, avoiding risks during disassembly and assembly, and facilitating unified quality control.
[0022] In this embodiment, there are two nuts 22, and each nut 22 is equipped with a slider 221. Several connecting rods 3 are divided into upper and lower groups, and the two groups of connecting rods 3 are respectively connected to the two sliders 221. The upper and lower groups of connecting rods 3 can simultaneously apply pressure to the upper and lower sides of the first support bar 12 and the second support bar 13 to improve the support force of the entire device.
[0023] Two nuts 22 are connected to the rod 21 through two sections of threads with opposite directions. When the rod 21 rotates, the two nuts 22 assembled on the two sections of threads will move closer to each other or further away from each other at the same time. Through a rotation input, the two sliders 221 will perform synchronous linear motion in opposite directions, which greatly simplifies the mechanism design and improves the synchronization accuracy and reliability of the movement of the two sliders 221.
[0024] To further enhance the support force, each slider 221 is connected to four connecting rods 3. Two connecting rods 3 are connected between the first support bar 12 and the slider 221, and the other two connecting rods 3 are connected between the second support bar 13 and the slider 221. Double support structures are set between the first support bar 12 and the slider 221 and between the second support bar 13 and the slider 221, which further ensures the stability of the support.
[0025] The support body 11 is provided with two bearing seats 111, and each bearing seat 111 is provided with a bearing 112. The two ends of the rod 21 are respectively passed through the two bearings 112 and connected to the two bearings 112 respectively. The bearings 112 can reduce the friction when the rod 21 rotates and ensure the rotation accuracy of the rod 21, so that the rotation of the rod 21 can be carried out efficiently, accurately and for a long time.
[0026] The support body 11 is provided with a T-slot 113. The bearing 112 seat 111 is installed on the support body 11 by a T-nut 11422, and the T-nut 11422 is installed in the T-slot 113. The T-nut 11422 can be fixed at any position in the T-slot 113. The bearing 112 seat 111 can be quickly and flexibly adjusted by the cooperation of the T-nut 11422 and the T-slot 113.
[0027] Adjustment blocks 121 are provided on both the first support bar 12 and the second support bar 13. One end of the connecting rod 3 is hinged to the adjustment block 121 through the guide sleeve 122, and the other end of the connecting rod 3 is hinged to the slider 221. When the slider 221 moves up and down, the two ends of the connecting rod 3 rotate relative to the adjustment block 121 and the slider 221 respectively, thereby changing the included angle between them.
[0028] Both adjustment blocks 121 are provided with a number of slots 123, and the first support bar 12 and the second support bar 13 are provided with through holes 124. The through holes 124 and the slots 123 are connected by screws. Due to the setting of the slots 123, the position of the adjustment block 121 on the first support bar 12 and the second support bar 13 can be adjusted, further improving the convenience of use.
[0029] In this embodiment, one end of the lever 21 is connected to a one-way ratchet wrench 211. The rotation direction of the one-way ratchet wrench 211 is horizontal. The one-way ratchet wrench 211 allows users to work efficiently in narrow spaces. They only need to swing the one-way ratchet wrench 211 back and forth without having to remove the one-way ratchet wrench 211 from the lever 21 and reposition it, which is convenient to use.
[0030] To ensure the cleanliness of the device, end caps 115 are fixedly installed at both the upper and lower ends of the support body 11. The two end caps 115 and the support body 11 form an upper and lower sealing structure to prevent mortar from entering during the construction of the device.
[0031] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. An elevator shaft molding device, characterized in that: The device includes a profile, a lead screw, and several connecting rods. The profile includes a support body, a first support bar, and a second support bar, which are arranged opposite to each other on both sides of the support body. The lead screw includes a threaded rod body and a nut. The rod body is rotatably mounted on the support body and is located between the first support bar and the second support bar. A slider is mounted on the nut. The several connecting rods are divided into two groups, left and right. One group of connecting rods connects the first support bar and the slider, and the other group of connecting rods connects the second support bar and the slider.
2. The elevator shaft molding device according to claim 1, characterized in that: There are two nuts, and each nut is equipped with a slider. The connecting rods are divided into upper and lower groups, and the two groups of connecting rods are respectively connected to the two sliders.
3. The elevator shaft molding device according to claim 2, characterized in that: Each slider is connected to four links, two of which are connected between the first support bar and the slider, and the other two are connected between the second support bar and the slider.
4. The elevator shaft molding device according to claim 2, characterized in that: The two nuts are connected to the rod body by two threads with opposite directions.
5. The elevator shaft molding device according to claim 1, characterized in that: The support body is provided with two bearing seats, and each bearing seat is provided with a bearing. The two ends of the rod are respectively passed through the two bearings and connected to the two bearings respectively.
6. The elevator shaft molding device according to claim 5, characterized in that: The support body is provided with a T-slot, and the bearing seat is installed on the support body by a T-nut, and the T-nut is installed in the T-slot.
7. The elevator shaft molding device according to claim 1, characterized in that: Both the first support bar and the second support bar are provided with adjustment blocks. One end of the connecting rod is hinged to the adjustment block through a guide sleeve, and the other end of the connecting rod is hinged to the slider.
8. The elevator shaft molding device according to claim 7, characterized in that: Both adjustment blocks are provided with a plurality of slots, and the first support bar and the second support bar are provided with through holes, which are connected to the slots by screws.
9. The elevator shaft molding device according to claim 1, characterized in that: One end of the rod is connected to a one-way ratchet wrench, and the one-way ratchet wrench rotates in a horizontal direction.
10. The elevator shaft molding device according to any one of claims 1-9, characterized in that: End caps are fixedly installed at both the upper and lower ends of the support body.