Double-cylinder climbing form jack
By combining climbing rods, support sleeves, support seats, and hydraulic cylinders, and integrating worm gear transmission, the automated positioning and movement of the double-cylinder climbing formwork jack are achieved, solving the problem of low efficiency in existing technologies and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUANG GUOXIN HYDRAULIC EQUIP MFG CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-19
AI Technical Summary
Existing twin-cylinder climbing formwork jacks require manual or additional drive mechanisms for positioning and adjustment during use, resulting in low efficiency.
The design adopts a combination of climbing rod, support screw sleeve, support base, hydraulic cylinder and climbing formwork drive assembly. The hydraulic cylinder drives the steel formwork frame to move, and the climbing formwork drive assembly realizes automatic positioning and movement. The worm gear transmission is combined to improve the degree of automation.
It realizes the automated positioning and movement of the double-cylinder climbing formwork jack, which improves construction efficiency, reduces manual intervention, and enhances the effect of use.
Smart Images

Figure CN224377574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and more specifically, to a double-cylinder climbing formwork jack. Background Technology
[0002] The double-cylinder climbing formwork jack is the core lifting drive device in the hydraulic climbing formwork system. It is specially designed for building climbing formwork systems and is used to safely, stably, and efficiently lift the entire formwork platform system in the construction of vertical concrete structures such as high-rise buildings, bridge piers, silos, and cooling towers.
[0003] Currently available double-cylinder climbing formwork jacks require manual adjustment or an additional drive mechanism to adjust the climbing formwork positioning structure during use (as per the instruction manual). Figure 4 This leads to efficiency issues in the use of the dual-cylinder climbing formwork jack. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a double-cylinder climbing formwork jack, which aims to solve the problems mentioned in the background art.
[0005] To solve the above problems, the present invention adopts the following technical solution:
[0006] Double-cylinder climbing formwork jack, including:
[0007] The climbing pole, wherein two support sleeves are threaded onto its outer surface; and
[0008] The climbing formwork mechanism includes two support seats, each of which is movably sleeved on the outer surface of the climbing rod. A steel formwork frame is fixedly connected to the top of each support seat. Two hydraulic cylinders are connected between the outer walls of the two steel formwork frames. A climbing formwork drive assembly is installed on the outer wall of each support seat.
[0009] As a preferred embodiment of this utility model, the climbing formwork drive assembly includes a mounting frame, which is fixedly connected to the bottom of the support base. A transmission tube is rotatably embedded between the inner walls of the mounting frame, and the transmission tube is movably sleeved on the outer surface of the support screw sleeve.
[0010] As a preferred embodiment of this utility model, each of the supporting screw sleeves is in the shape of a hexagonal column.
[0011] As a preferred embodiment of this utility model, an installation shaft is rotatably mounted between the inner walls of the mounting bracket, a transmission gear is fixedly sleeved on the outer surface of the shaft, and an annular toothed plate is sleeved on the outer surface of the transmission tube, with the annular toothed plate and the transmission gear meshing.
[0012] As a preferred embodiment of this utility model, a worm gear is fixedly sleeved on the outer surface of the mounting shaft, and a worm is rotatably embedded in the inner wall of one side of the mounting bracket, with the worm gear and the worm meshing.
[0013] As a preferred embodiment of this utility model, a drive motor is fixedly installed on one side of the outer wall of the mounting bracket, and the output end of the drive motor is fixedly connected to one end of the worm gear.
[0014] Beneficial effects
[0015] Compared with existing technologies, this utility model provides a double-cylinder climbing formwork jack, which has the following beneficial effects:
[0016] 1. This solution facilitates the limiting of the climbing formwork mechanism through climbing rods and support screw sleeves. The support screw sleeves and support seats facilitate the positioning of the steel formwork frame. The hydraulic cylinders facilitate the upward movement of the upper steel formwork frame on the climbing rods. After movement, the climbing formwork drive components facilitate the movement of the upper support screw sleeves to position the upper support seats and steel formwork frame. The retraction of the hydraulic cylinders facilitates the upward movement of the lower steel formwork frame, realizing the climbing formwork operation. The climbing formwork drive components improve the usage effect.
[0017] 2. In this solution, the mounting bracket is fixedly connected to the bottom of the support base. The rotation of the transmission tube on the mounting bracket facilitates the rotation of the internal support screw sleeve. Since the support screw sleeve is threaded on the outer surface of the climbing rod, it is convenient to move the support screw sleeve, which facilitates the use of the climbing formwork drive assembly. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present utility model;
[0019] Figure 2 This is a cross-sectional view of the present invention;
[0020] Figure 3 This utility model Figure 2 A sectional view;
[0021] Figure 4 This is a schematic diagram of existing technology.
[0022] Explanation of the labels in the diagram:
[0023] 1. Climbing rod; 2. Supporting screw sleeve; 3. Climbing formwork mechanism; 301. Support base; 302. Steel formwork frame; 303. Hydraulic cylinder; 4. Climbing formwork drive assembly; 401. Mounting frame; 402. Transmission pipe; 403. Mounting shaft; 404. Transmission gear; 405. Annular gear plate; 406. Worm gear; 407. Worm; 5. Drive motor. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] Example:
[0026] Please see Figure 1-4 Double-cylinder climbing formwork jack, including:
[0027] Climbing rod 1, with two support sleeves 2 threaded onto its outer surface; and
[0028] The climbing formwork mechanism 3 includes two support seats 301, each support seat 301 is movably sleeved on the outer surface of the climbing rod 1, and a steel formwork frame 302 is fixedly connected to the top of each support seat 301. Two hydraulic cylinders 303 are connected between the outer walls of the two steel formwork frames 302, and a climbing formwork drive assembly 4 is installed on the outer wall of each support seat 301.
[0029] In this embodiment, the climbing rod 1 and the support screw sleeve 2 facilitate the limiting of the climbing formwork mechanism 3, and the support screw sleeve 2 and the support base 301 facilitate the positioning of the steel formwork frame 302. The hydraulic cylinder 303 facilitates the upward movement of the upper steel formwork frame 302 on the climbing rod 1. After the movement, the climbing formwork drive assembly 4 facilitates the movement of the upper support screw sleeve 2 to position the upper support base 301 and the steel formwork frame 302. The retraction of the hydraulic cylinder 303 facilitates the upward movement of the lower steel formwork frame 302, thus realizing the climbing formwork operation. The climbing formwork drive assembly 4 improves the usage effect.
[0030] Please refer to the specific details. Figure 1 and Figure 3 As shown, the climbing formwork drive assembly 4 includes a mounting frame 401, which is fixedly connected to the bottom of the support base 301. A transmission tube 402 is rotatably embedded between the inner walls of the mounting frame 401, and the transmission tube 402 is movably sleeved on the outer surface of the support screw sleeve 2.
[0031] In this embodiment, the mounting bracket 401 is fixedly connected to the bottom of the support base 301. The transmission tube 402 on the mounting bracket 401 rotates, which facilitates the rotation of the internal support screw sleeve 2. Since the support screw sleeve 2 is threaded on the outer surface of the climbing rod 1, it is convenient to drive the support screw sleeve 2 to move, which facilitates the use of the climbing formwork drive assembly 4.
[0032] Please refer to the specific details. Figure 2-3 As shown, each support sleeve 2 is in the shape of a hexagonal prism.
[0033] In this embodiment, the support screw sleeve 2 is in the shape of a hexagonal prism, and the internal shape of the transmission tube 402 is adapted to the support screw sleeve 2, thereby improving the transmission effect of the support screw sleeve 2 and the transmission tube 402.
[0034] Please refer to the specific details. Figure 3 As shown, an installation shaft 403 is rotatably mounted between the inner walls of the mounting bracket 401, a transmission gear 404 is fixedly sleeved on the outer surface of the shaft, and an annular toothed plate 405 is sleeved on the outer surface of the transmission tube 402, and the annular toothed plate 405 and the transmission gear 404 mesh.
[0035] In this embodiment, the installation shaft 403 rotates, which facilitates the rotation of the transmission gear 404. Since the transmission gear 404 meshes with the annular toothed plate 405, it facilitates the rotation of the annular toothed plate 405, which in turn drives the transmission tube 402 to rotate, thus facilitating the use of the climbing formwork drive assembly 4.
[0036] Please refer to the specific details. Figure 3 As shown, a worm gear 406 is fixedly sleeved on the outer surface of the mounting shaft 403, and a worm 407 is rotatably embedded in the inner wall of one side of the mounting bracket 401, with the worm gear 406 and the worm 407 meshing.
[0037] In this embodiment, the worm gear 406 and worm 407 have a self-locking function, which improves the stability of the climbing formwork drive assembly 4. The worm gear 407 can easily drive the worm gear 406 to rotate, which in turn can easily drive the mounting shaft 403 to rotate.
[0038] Please refer to the specific details. Figure 3 As shown, a drive motor 5 is fixedly installed on one side of the outer wall of the mounting bracket 401, and the output end of the drive motor 5 is fixedly connected to one end of the worm gear 407.
[0039] In this embodiment, the drive motor 5 facilitates the rotation of the worm gear 407, thereby improving the ease of use of the climbing formwork drive assembly 4.
[0040] Working principle: When in use, the hydraulic cylinder 303 is activated. Due to the constraint of the lower support sleeve 2, the lower support base 301 and the steel mold frame 302 remain fixed. At this time, the hydraulic cylinder 303 drives the upper support base 301 and the steel mold frame 302 to move upward a certain distance on the outer surface of the climbing rod 1. The upper drive motor 5 is activated. The drive motor 5 drives the worm gear 407 on the mounting bracket 401 to rotate, which drives the worm wheel 406 to rotate, thereby driving the mounting shaft 403 to rotate, which in turn drives the transmission gear 404 to rotate, cooperating with the ring gear plate. 405 drives the transmission tube 402 and its internal support sleeve 2 to rotate. Since the support sleeve 2 is threaded on the outer surface of the climbing rod 1, it then drives the support sleeve 2 to move up to the bottom of the corresponding support seat 301, positioning the support seat 301 and the steel mold frame 302 located above. The hydraulic cylinder 303 is activated to retract, driving the support seat 301 and the steel mold frame 302 located below to move upward a certain distance. The climbing formwork drive assembly 4 located below is activated, causing the support sleeve 2 located below to move below the corresponding support seat 301, completing the climbing formwork operation.
[0041] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A double-cylinder climbing formwork jack, characterized in that, include: Climbing pole (1), wherein two supporting sleeves (2) are threaded onto the outer surface of the climbing pole (1); and The climbing formwork mechanism (3) includes two support seats (301), each of the support seats (301) is movably sleeved on the outer surface of the climbing rod (1), and a steel formwork frame (302) is fixedly connected to the top of each support seat (301). Two hydraulic cylinders (303) are connected between the outer walls of the two steel formwork frames (302), and a climbing formwork drive assembly (4) is installed on the outer wall of each support seat (301).
2. The double-cylinder climbing mold jack according to claim 1, characterized in that, The climbing formwork drive assembly (4) includes a mounting frame (401), which is fixedly connected to the bottom of the support base (301). A transmission tube (402) is rotatably embedded between the inner walls of the mounting frame (401), and the transmission tube (402) is movably sleeved on the outer surface of the support screw sleeve (2).
3. The double-cylinder climbing formwork jack according to claim 2, characterized in that, Each of the aforementioned support threaded sleeves (2) is in the shape of a hexagonal prism.
4. The double-cylinder climbing mold jack according to claim 3, characterized in that, An installation shaft (403) is rotatably mounted between the inner walls of the mounting bracket (401). A transmission gear (404) is fixedly sleeved on the outer surface of the shaft. An annular toothed plate (405) is sleeved on the outer surface of the transmission tube (402), and the annular toothed plate (405) and the transmission gear (404) mesh.
5. The double-cylinder climbing formwork jack according to claim 4, characterized in that, The outer surface of the mounting shaft (403) is fixedly fitted with a worm gear (406), and the inner wall of one side of the mounting bracket (401) is rotatably embedded with a worm (407), and the worm gear (406) and the worm (407) mesh.
6. The double-cylinder climbing formwork jack according to claim 5, characterized in that, A drive motor (5) is fixedly installed on one side of the outer wall of the mounting bracket (401), and the output end of the drive motor (5) is fixedly connected to one end of the worm gear (407).