Formwork dismantling construction device with safety protection structure
By designing a formwork removal device with a safety protection structure, the problem of dust and particles splashing during formwork removal was solved, achieving stable clamping of the formwork and dust protection, thus improving construction safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-04-14
AI Technical Summary
Existing formwork removal devices can easily cause dust and concrete particles to splash out when prying, potentially injuring workers.
A template removal construction device with a safety protection structure was designed. Through the cooperation of the removal mechanism and the protection mechanism, the template is clamped and fixed and dust is protected to prevent dust particles from falling.
It effectively prevents formwork from falling and injuring workers during dismantling, and protects workers from dust particles, thus improving construction safety.
Smart Images

Figure CN224119922U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction tools technology, specifically to a formwork removal construction device with a safety protection structure. Background Technology
[0002] Construction formwork is a temporary support structure that can be made according to design requirements to shape concrete structures and components in the specified positions and geometric dimensions, and to bear the self-weight of the formwork and the external loads acting on it. Conventional construction formwork is mostly made of wood panels, and it needs to be removed one by one at the end of the construction project.
[0003] A search revealed a utility model patent with publication number CN221837966U, which discloses a telescopic formwork removal construction device. The device includes a top rod with a first connecting thread at its bottom outer end and a first internal thread groove inside the bottom end. A telescopic pry bar structure is located inside the top of the top rod. This telescopic formwork removal construction device incorporates a second internal thread groove, a second connecting thread, an external reinforcing ring, a threaded steel pry bar, a steel hook, and an external thread on the pry bar. In use, the top rod is clamped, and then the threaded steel pry bar is rotated. The pry bar rotates along the inside of the second internal thread groove and extends outward, changing the relative position between the pry bar and the top rod and increasing its length. The external reinforcing ring, fixed by the second connecting thread, increases the external strength of the top rod, thus enabling the pry bar to extend and retract, solving the problem of devices lacking this feature.
[0004] Although the aforementioned patent achieves the telescopic function of the pry bar by increasing the external strength of the top rod, thus facilitating the prying and removal of the building formwork, when using the pry bar, the operator will stand at the bottom of the building formwork to pry it. When the building formwork is pried, a large amount of dust or concrete particles will fall, which will cause the concrete dust particles to injure the construction workers at the bottom when the building formwork is pried and removed.
[0005] Therefore, it is necessary to propose a formwork removal construction device with a safety protection structure to solve the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide a formwork removal construction device with a safety protection structure. Through the cooperation of the internal parts of the removal mechanism, it is convenient for workers to remove the building formwork by prying it off while simultaneously clamping it to prevent it from falling and injuring the workers. The cooperation of the internal parts of the protective mechanism also helps to protect against concrete dust particles generated during the prying and removal of the formwork, preventing these particles from falling and injuring the workers. This solves the problem in the prior art where a large amount of dust or concrete particles splash down when the formwork is pried off, causing injury to the workers at the bottom.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a template removal construction device with a safety protection structure, comprising a device body, a plurality of anti-slip rings fixedly fitted on the outer wall of the device body, a removal mechanism rotatably connected to the bottom end of the device body and slidably connected to the side wall of the device body, and a protective mechanism rotatably connected to the outer wall of the anti-slip rings and penetrating the device body to the interior of the removal mechanism;
[0008] The demolition mechanism includes a limiting slider, which is slidably connected to the side wall at the top of the device body. A clamping plate is machined on one side of the limiting slider. A demolition pry bar is mechanically connected to the top of the device body. An auxiliary plate is machined on the bottom end of the demolition pry bar near the clamping plate.
[0009] The protective mechanism includes an elastic plate, which is rotatably connected to one side of an anti-slip ring and extends through the anti-slip ring into the interior of the device body. A limit post is machined on the inner wall of the elastic plate near the anti-slip ring. A connecting spring connects the elastic plate to the device body and is sleeved on the outer wall of the limit post. A limit slip ring is slidably connected to the inner wall of the device body and extends through to the outer wall of the device body. Multiple supporting umbrella ribs are rotatably connected to the outer wall of the device body and distributed around the outer wall of the device body. A support rod is fixed between the outer wall of the limit slip ring and the inner wall of the supporting umbrella ribs. A protective cover is sleeved on the outer wall of the supporting umbrella ribs.
[0010] Preferably, the demolition mechanism further includes a rotating wheel, which is rotatably connected to the bottom end of the device body. A connecting rod is machined at the top of the rotating wheel and extends into the interior of the device body. A threaded rod is mechanically connected to the top of the connecting rod, and a limiting slip ring and a limiting slider are slidably sleeved with the outer wall of the threaded rod.
[0011] Preferably, the main body of the device has a transmission groove inside that matches the connecting rod, and the outer wall of the connecting rod has multiple limiting holes that match the limiting posts, and the outer wall of the anti-slip ring has a connecting groove that matches the elastic plate.
[0012] Preferably, the top of the main body of the device is provided with a sliding groove that matches the limiting slider and the limiting slip ring, and the inner walls of the limiting slider and the limiting slip ring are provided with internal threads that match the threads on the outer wall of the threaded rod.
[0013] Preferably, the inner walls of the clamping plate and the auxiliary plate are machined with dense friction protrusions, the removal pry bar, the clamping plate and the main body of the device are connected at an inclination of 135°, and the top of the removal pry bar is provided with a sharp pry bar.
[0014] Preferably, the supporting umbrella ribs are rotatably connected to the outer wall of the device body via bearings, and the protective cover is mainly made of polyethylene and nylon, and has high transparency.
[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0016] 1. By having the operator hold the anti-slip ring, the main body of the device moves closer to the building formwork. The demolition pry bar is then inserted between the building formwork. The rotating wheel rotates, which in turn rotates the connecting rod. The rotating rod in turn rotates the threaded rod, which in turn moves the limit slider. This movement of the limit slider then moves the clamping plate, which moves closer to the auxiliary plate. Thus, the clamping plate and the auxiliary plate clamp and fix the building formwork, preventing it from falling directly to the ground during demolition and reducing the risk of injury to the operator.
[0017] 2. The rotation of the threaded rod causes the limiting slip ring to slide, which in turn moves the support rod. This movement causes the support ribs to unfold like an umbrella, facilitating the unfolding of the protective cover. This protective cover protects the workers operating below from concrete dust particles generated during the prying and dismantling of the formwork. Simultaneously, when the worker grips the anti-slip ring, they apply pressure to the elastic plate on the outer wall of the anti-slip ring. This pressure causes the connecting spring to contract and move, moving the elastic plate and then the limiting post. This movement extends into the connecting rod, limiting its rotation and preventing the risk of loosening between the clamping plate and the auxiliary plate due to contact between the worker's body and the rotating wheel. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a cross-sectional structural diagram of the main body of the device of this utility model;
[0021] Figure 3 This is a cross-sectional structural diagram of the main body of the device and the anti-slip ring of this utility model;
[0022] Figure 4 This is a cross-sectional structural diagram of the protective cover of this utility model;
[0023] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Main body of the device; 101. Anti-slip ring; 2. Dismantling mechanism; 201. Rotating wheel; 202. Connecting rod; 203. Threaded rod; 204. Limiting slider; 205. Clamping plate; 206. Dismantling pry bar; 207. Auxiliary plate; 3. Protective mechanism; 301. Elastic plate; 302. Limiting post; 303. Connecting spring; 304. Limiting slip ring; 305. Supporting umbrella rib; 306. Supporting rod; 307. Protective cover. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] This utility model provides, for example Figure 1-5 The template removal construction device with a safety protection structure shown includes a device body 1. Multiple anti-slip rings 101 are fixedly sleeved on the outer wall of the device body 1. The bottom end of the device body 1 is rotatably connected to a removal mechanism 2 and slidably connected to the side wall of the device body 1. The outer wall of the anti-slip rings 101 is rotatably connected to a protective mechanism 3, which penetrates the device body 1 to the interior of the removal mechanism 2.
[0028] The demolition mechanism 2 includes a limiting slider 204, which is slidably connected to the side wall at the top of the device body 1. A clamping plate 205 is machined on one side of the limiting slider 204. A demolition pry bar 206 is mechanically connected to the top of the device body 1. An auxiliary plate 207 is machined on the bottom end of the demolition pry bar 206 near the clamping plate 205.
[0029] The protective mechanism 3 includes an elastic plate 301, which is rotatably connected to one side of the anti-slip ring 101 and extends through the anti-slip ring 101 into the interior of the device body 1. A limit post 302 is machined on the inner wall of the side of the elastic plate 301 near the anti-slip ring 101. A connecting spring 303 is connected between the elastic plate 301 and the device body 1 and is sleeved on the outer wall of the limit post 302. A limit slip ring 304 is slidably connected to the inner wall of the device body 1 and extends through to the outer wall of the device body 1. Multiple supporting umbrella ribs 305 are rotatably connected to the outer wall of the device body 1 and are distributed around the outer wall of the device body 1. A support rod 306 is fixedly connected between the outer wall of the limit slip ring 304 and the inner wall of the supporting umbrella rib 305. A protective cover 307 is sleeved on the outer wall of the supporting umbrella rib 305.
[0030] The interoperability of the internal parts of the dismantling mechanism 2 facilitates the removal of the building formwork by workers through the main body 1. While prying and dismantling the formwork, the mechanism also clamps it to prevent it from falling and hitting the ground, thus protecting the workers. The interoperability of the internal parts of the protective mechanism 3 also protects against concrete dust particles generated during the prying and dismantling of the formwork, preventing these particles from falling and injuring the workers.
[0031] Refer to the instruction manual appendix Figure 1-5 The demolition mechanism 2 also includes a rotating wheel 201, which is rotatably connected to the bottom end of the device body 1. A connecting rod 202 is machined at the top of the rotating wheel 201 and extends into the interior of the device body 1. A threaded rod 203 is mechanically connected to the top of the connecting rod 202. The limiting slip ring 304 and the limiting slider 204 are slidably sleeved with the outer wall of the threaded rod 203. Through the mutual cooperation between the internal parts of the demolition mechanism 2, it is convenient for the operator to rotate the rotating wheel 201 to drive the threaded rod 203 to rotate.
[0032] Refer to the instruction manual appendix Figure 1-5The device body 1 has a transmission groove inside that matches the connecting rod 202, and the outer wall of the connecting rod 202 has multiple limiting holes that match the limiting post 302. The outer wall of the anti-slip ring 101 has a connecting groove that matches the elastic plate 301. The transmission groove inside the device body 1 that matches the connecting rod 202 and the limiting holes on the outer wall of the connecting rod 202 that match the limiting post 302 make it easy for the operator to hold the anti-slip ring 101 and squeeze the elastic plate 301 to drive the limiting post 302 through into the connecting rod 202.
[0033] Refer to the instruction manual appendix Figure 1-5 The top of the main body 1 of the device has a sliding groove that matches the limiting slider 204 and the limiting slip ring 304. The inner walls of the limiting slider 204 and the limiting slip ring 304 are provided with internal threads that match the threads on the outer wall of the threaded rod 203. The sliding groove at the top of the main body 1 of the device is provided with the limiting slider 204 and the limiting slip ring 304, and the inner walls of the limiting slider 204 and the limiting slip ring 304 are provided with internal threads that match the threads on the outer wall of the threaded rod 203. This facilitates the rotation of the threaded rod 203 to drive the limiting slider 204 and the limiting slip ring 304 to slide on the main body 1 of the device.
[0034] Refer to the instruction manual appendix Figure 1-5 The inner walls of the clamping plate 205 and the auxiliary plate 207 are machined with dense friction protrusions. The dismantling crowbar 206 and the clamping plate 205 are connected to the main body 1 of the device at a 135° angle. The top of the dismantling crowbar 206 is equipped with a sharp crowbar. The dense friction protrusions machined between the inner walls of the clamping plate 205 and the auxiliary plate 207, and the dismantling crowbar 206 and the clamping plate 205 are connected to the main body 1 of the device at a 135° angle, and the top of the dismantling crowbar 206 is equipped with a sharp crowbar, make it easy for the clamping plate 205 and the auxiliary plate 207 to clamp and fix the building template. It also makes it easy for the operator to hold the main body 1 of the device without being directly under the building template, thereby reducing the risk of injury to the operator.
[0035] Refer to the instruction manual appendix Figure 1-5 The supporting umbrella ribs 305 are rotatably connected to the outer wall of the main body 1 of the device via bearings. The protective cover 307 is mainly made of polyethylene and nylon, and has high transparency. The protective cover 307 is mainly made of polyethylene and nylon, and has high transparency, which makes it easy for the protective cover 307 to have high tensile strength, wear resistance and puncture resistance, and to facilitate the observation of the dismantling status of the building formwork by the staff through the protective cover 307.
[0036] The working principle of this practical application is as follows:
[0037] Refer to the instruction manual appendix Figure 1-5The operator holds the anti-slip ring 101 to bring the main body 1 of the device closer to the building template, and inserts the demolition pry bar 206 between the building templates. The rotating wheel 201 rotates, which drives the connecting rod 202 to rotate. The rotating connecting rod 202 rotates, which drives the threaded rod 203 to rotate. The rotating threaded rod 203 rotates, which drives the limiting slider 204 to move. The movement of the limiting slider 204 drives the clamping plate 205 to move. The clamping plate 205 moves closer to the auxiliary plate 207, thus clamping and fixing the building template with the auxiliary plate 207. This prevents the building template from falling directly to the ground when it is demolished, thereby reducing the risk of injury to the operator.
[0038] Refer to the instruction manual appendix Figure 1-5 When the threaded rod 203 rotates, it drives the limiting slip ring 304 to slide. The limiting slip ring 304 slides upward, causing the support rod 306 to move. This movement of the support rod 306 causes the support umbrella ribs 305 to unfold like an umbrella canopy. This unfolding of the support umbrella ribs 305 facilitates the unfolding of the protective cover 307, protecting the workers operating below from concrete dust particles generated during the prying and dismantling of the formwork. This prevents the concrete dust particles from falling and causing harm to the workers. This prevents injury. When the operator holds the anti-slip ring 101 with both hands, the operator will apply force to the elastic plate 301 on the outer wall of the anti-slip ring 101, causing the elastic plate 301 to compress and move the connecting spring 303. The movement of the elastic plate 301 drives the movement of the limiting post 302, allowing the limiting post 302 to move through into the interior of the connecting rod 202, thus completing the rotation limit of the connecting rod 202. This avoids the risk of the clamping plate 205 and the auxiliary plate 207 becoming loose due to the operator's body contacting and rotating the wheel 201.
[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A formwork removal construction device with a safety protection structure, characterized in that: The device includes a main body (1), and a plurality of anti-slip rings (101) are fixedly fitted on the outer wall of the main body (1). A dismantling mechanism (2) is rotatably connected to the bottom end of the main body (1) and slidably connected to the side wall of the main body (1). A protective mechanism (3) is rotatably connected to the outer wall of the anti-slip rings (101) and penetrates the main body (1) to the interior of the dismantling mechanism (2). The demolition mechanism (2) includes a limiting slider (204), which is slidably connected to the side wall at the top of the device body (1). A clamping plate (205) is machined on one side of the limiting slider (204). A demolition pry bar (206) is mechanically connected to the top of the device body (1). An auxiliary plate (207) is machined on the bottom end of the demolition pry bar (206) near the clamping plate (205). The protective mechanism (3) includes an elastic plate (301), which is rotatably connected to one side of the anti-slip ring (101) and extends through the anti-slip ring (101) into the interior of the device body (1). A limit post (302) is machined on the inner wall of the elastic plate (301) near the anti-slip ring (101). A connecting spring (303) is connected between the elastic plate (301) and the device body (1), and is sleeved with the outer wall of the limit post (302). The inner wall of the device body (1) is slidably connected to a limiting slip ring (304) and extends through to the outer wall of the device body (1). The outer wall of the device body (1) is rotatably connected to a plurality of supporting umbrella ribs (305) and distributed around the outer wall of the device body (1). A supporting rod (306) is fixedly connected between the outer wall of the limiting slip ring (304) and the inner wall of the supporting umbrella ribs (305). A protective cover (307) is sleeved on the outer wall of the supporting umbrella ribs (305).
2. The formwork removal construction device with a safety protection structure according to claim 1, characterized in that: The dismantling mechanism (2) also includes a rotating wheel (201), which is rotatably connected to the bottom end of the device body (1). The top end of the rotating wheel (201) is machined with a connecting rod (202) that extends into the interior of the device body (1). The top end of the connecting rod (202) is mechanically connected with a threaded rod (203), and the limiting slip ring (304), the limiting slider (204), and the outer wall of the threaded rod (203) are slidably sleeved.
3. The formwork removal construction device with a safety protection structure according to claim 2, characterized in that: The device body (1) has a transmission groove inside that matches the connecting rod (202), and the outer wall of the connecting rod (202) has multiple limiting holes that match the limiting post (302). The outer wall of the anti-slip ring (101) has a connecting groove that matches the elastic plate (301).
4. The formwork removal construction device with a safety protection structure according to claim 2, characterized in that: The top of the main body (1) of the device has a sliding groove that matches the limiting slider (204) and the limiting slip ring (304), and the inner walls of the limiting slider (204) and the limiting slip ring (304) are provided with internal threads that match the threads on the outer wall of the threaded rod (203).
5. A formwork removal construction device with a safety protection structure according to claim 1, characterized in that: The inner walls of the clamping plate (205) and the auxiliary plate (207) are machined with dense friction protrusions. The removal pry bar (206), the clamping plate (205) and the main body of the device (1) are connected at an inclination of 135°. The top of the removal pry bar (206) is provided with a sharp pry bar.
6. The formwork removal construction device with a safety protection structure according to claim 1, characterized in that: The supporting umbrella ribs (305) are rotatably connected to the outer wall of the device body (1) via bearings. The protective cover (307) is mainly made of polyethylene and nylon, and the protective cover (307) has high transparency.
Citation Information
Patent Citations
Telescopic formwork dismantling construction device
CN221837966U