Vertical mold removing device for box girder end mold

Abstract

The utility model discloses an erecting mold removing device of a box girder end mold. The erecting mold removing device comprises a supporting assembly and a telescopic driving assembly. The supporting assembly is used for being arranged on a box girder bottom die and detachably connected with a box girder side die. The telescopic driving assembly is fixedly installed in the supporting assembly and used for being symmetrically and detachably connected with the box girder end mold so as to drive the box girder end mold to move relative to the box girder side mold in the longitudinal direction of the box girder side mold and support the box girder end mold. The formwork removing and erecting device for the box girder end formwork is easy and convenient to operate, installation, adjustment, positioning, supporting and demolding of the box girder end formwork are easy to achieve, the formwork removing and erecting efficiency of the box girder end formwork is improved to a great extent, the preparation requirements of different girder shapes can be met, the appearance of a girder body cannot be affected, the structure is stable and reliable, transferring can be completed through one-time hoisting after demolding, and the production efficiency is improved. Therefore, long-time occupation of a hoisting tool in the demolding process is avoided, and the truss working hours are effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction equipment, in particular to a demoulding device for a box beam end formwork. Background Art

[0002] With the rapid development of highway construction, the demand for prefabrication of small box girders is increasing, and the proportion of factory assembly line production is gradually increasing.

[0003] The densely packed rebar protruding from the continuous ends of small box girders makes demolding the end formwork extremely challenging. Currently, these are typically removed in multiple pieces, using manual hammering and crane-assisted hoisting. This takes a long time, is labor-intensive, and occupies the crane for extended periods, impacting the entire prefabrication production line. Adjusting the angle of the end formwork after installation is difficult, and adjustments after positioning are difficult, which can easily lead to inaccurate positioning of the end formwork, impacting the overall accuracy of the prefabricated small box girders and the parameter settings for subsequent tensioning processes.

[0004] In addition, the end formwork of the small box girder is fixed by pushing and supporting the end formwork through the screws on the end face of the side formwork, that is, the longitudinal screw is fixed by the adapter plate connected to the end face of the side formwork, and the end formwork of the small box girder is fixed by pushing and fixing the longitudinal screw. The screw pushing is limited by the stability of the pressure rod and cannot provide a large pushing force. If the screw model is increased, the weight is too heavy to affect the workers' disassembly and assembly. When the beam length changes too much, welding or holes are generally opened on the side formwork surface, but blocking or cutting will affect the appearance of the beam. Utility Model Content

[0005] In view of this, the utility model provides a demoulding device for the end formwork of a box girder. The operation is simple and convenient, and the installation, adjustment, positioning, support and demoulding of the end formwork of the box girder are easy to realize, which greatly improves the demoulding efficiency of the end formwork of the box girder, can meet the preparation requirements of different beam shapes, and will not affect the appearance of the beam body. The structure is stable and reliable, and after demoulding, it can be hoisted and transported in one time, thereby avoiding the long-term occupation of hoisting tools during the demoulding process and effectively saving the working hours of the gantry truck.

[0006] A demoulding device for a box girder end formwork comprises a support assembly and a telescopic drive assembly; wherein the support assembly is used to be arranged on the box girder bottom formwork and detachably connected to the box girder side formwork; the telescopic drive assembly is fixedly installed in the support assembly, and the telescopic drive assembly is used to symmetrically and detachably connect to the box girder end formwork to drive the box girder end formwork to move relative to the box girder side formwork along the longitudinal direction of the box girder side formwork and support the box girder end formwork.

[0007] In one embodiment, the telescopic drive assembly includes a telescopic drive member, a first guide member and a second guide member arranged along the longitudinal direction of the box girder side form; wherein the first guide member is fixedly installed in the support assembly, the second guide member is slidably connected to the first guide member, and one end of the second guide member is used to detachably connect to the box girder end form; the telescopic drive member is fixedly installed on the first guide member, the telescopic end of the telescopic drive member is fixedly connected to the second guide member, and the telescopic drive member is used to drive the second guide member to move relative to the first guide member so that the box girder end formwork moves relative to the box girder side formwork.

[0008] In one embodiment, the first guide member is a plate frame structure with openings at both ends, the second guide member is a columnar structure passing through the plate frame structure, and one end of the columnar structure is slidably provided with a hinged ear seat; the telescopic driving member is fixedly installed on the top of the plate frame structure, and the telescopic end of the telescopic driving member is hinged to the hinged ear seat; the side of the plate frame structure is provided with a first connecting hole, the side of the columnar structure is provided with a second connecting hole, and the hinged ear seat is provided with a third connecting hole; the first connecting hole and the second connecting hole are used for the locking member to detachably lock the first guide member and the second guide member, and the second connecting hole and the third connecting hole are used for the locking member to detachably lock the second guide member and the hinged ear seat.

[0009] In one embodiment, the first connecting holes are waist-shaped holes arranged along the longitudinal direction of the box girder side formwork, and the second connecting holes are arranged at intervals along the longitudinal direction of the box girder side formwork.

[0010] In one embodiment, fourth connection holes corresponding to the second connection holes are spaced apart on the top of the second guide member.

[0011] In one embodiment, the support assembly includes a first support part, a second support part and two oblique support parts; wherein, the two oblique support parts are arranged opposite to each other along the transverse direction of the box beam bottom formwork, and the first support part and the second support part are respectively arranged at the two ends of the oblique support parts; the telescopic drive assembly is symmetrically arranged on the inner sides of the two oblique support parts and the inner bottom of the first support part, and the first support part is used to be arranged on the box beam bottom formwork.

[0012] In one embodiment, a movable wheel group is provided at the bottom of the first support part so that the support assembly can be movably arranged on the box beam bottom formwork. The first support part is symmetrically provided with support platforms along the lateral sides of the box beam bottom formwork, and the support platforms are respectively used to set up the pump station and the electric control cabinet.

[0013] In one embodiment, a first connection portion is provided on the outer side of the inclined support portion, and the first connection portion is used to detachably connect the lateral side of the box girder side form along the longitudinal direction of the box girder side form; or, a first connection portion is provided on the outer side of the inclined support portion, and a second connection portion is provided on the lateral side of the box girder side form, and the first connection portion is detachably connected to the second connection portion along the longitudinal direction of the box girder side form.

[0014] In one embodiment, the first support part is fixedly connected to the box beam bottom formwork, and the second support part is symmetrically provided with a third connection part along both sides of the box beam bottom formwork, and the third connection part is used to detachably connect the back frame of the box beam side formwork along the horizontal direction of the box beam side formwork.

[0015] In one embodiment, the first support portion, the second support portion and the two oblique support portions are composed of support rods that are spaced apart and connected to each other, so that the support assembly forms a bracket structure with a wide top and a narrow bottom.

[0016] The demoulding device for the box girder end formwork provided in the present application has a support assembly that is detachably or movably arranged on the box girder bottom formwork and detachably connected to the box girder side formwork, and a telescopic drive assembly that is fixedly installed in the support assembly and symmetrically and detachably connected to the box girder end formwork. The demoulding device can stably, reliably and evenly realize the position adjustment of the box girder end formwork during the installation and positioning process, the locking support of the box girder end formwork after the box girder end formwork is installed and positioned, and the demoulding after pouring is completed under the telescopic drive of the telescopic drive assembly. Therefore, compared with the existing technology, the operation is simple and convenient, and it is easy to realize the installation, adjustment, positioning, support and demoulding of the box girder end formwork, which greatly improves the demoulding efficiency of the box girder end formwork, can meet the preparation requirements of different beam shapes, and will not affect the appearance of the beam body. The structure is stable and reliable, and the transportation can be completed by one hoisting after demoulding, which avoids the long-term occupation of hoisting tools during the demoulding process and effectively saves the working hours of the gantry truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The overall structure of the demoulding device for the end formwork of the box beam of Example 1 of the present application is schematically shown;

[0019] Figure 2 The diagram schematically shows the partial assembly structure of the demoulding device for the end formwork of the box beam in Example 1 of the present application;

[0020] Figure 3 Schematic diagram showing Figure 2 A-direction local enlarged structure;

[0021] Figure 4 Schematic diagram showing Figure 2 B-direction local amplified structure;

[0022] Figure 5The overall structure of the telescopic drive assembly in the embodiment of the present application is schematically shown respectively;

[0023] Figure 6 The overall assembly structure of the demoulding device for the end formwork of the box beam of Example 1 of the present application is schematically shown;

[0024] Figure 7 The diagram schematically shows the partial assembly structure of the demoulding device for the end formwork of the box beam according to Example 2 of the present application;

[0025] Figure 8 The overall structure of the demoulding device of the box girder end formwork of Example 2 of the present application is schematically shown.

[0026] Legend: 100, box girder bottom formwork; 200, box girder side formwork; 300, box girder end formwork; 400, pump station; 500, electric control cabinet; 10, support assembly; 101, first support part; 102, second support part; 103, inclined support part; 104, support platform; 105, third connection part; 106, support foot; 107, fixed column; 20, telescopic drive assembly; 201, telescopic drive member; 2010, back frame; 20 11. Telescopic end; 202. First guide member; 2021. Mounting seat; 2022. First connecting hole; 203. Second guide member; 2031. Articulated ear seat; 2032. Second connecting hole; 2033. Third connecting hole; 2034. Fourth connecting hole; 30. End mold; 301. First connecting part; 3010. Articulated part; 302. Second connecting part; 3020. Articulated member; 303. Fastener; 40. Moving wheel assembly. DETAILED DESCRIPTION

[0027] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0028] In the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "provided with," "provided on," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, electrical connections, direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in specific circumstances.

[0029] The orientation or position relationship indicated by the terms "one end", "inside", "outside", "one side", "side", "outside", "bottom", etc. is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the utility model.

[0030] In the description of the present invention, unless otherwise expressly specified and limited, the terms "first", "second", "third", "fourth", etc. are merely used to distinguish elements with similar properties, rather than to indicate or imply relative importance or a specific order.

[0031] The term "comprise," "comprising," or any other variation thereof, is intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0032] Example 1

[0033] like Figure 1 、 Figure 2 and Figure 6 As shown, the demoulding device of the box girder end formwork of an embodiment of the present application includes a support assembly 10 and a telescopic drive assembly 20; wherein, the support assembly 10 is used to be set on the box girder bottom formwork 100 and detachably connected to the box girder side formwork 200; the telescopic drive assembly 20 is fixedly installed in the support assembly 10, and the telescopic drive assembly 20 is used to symmetrically and detachably connect the box girder end formwork 300 to drive the box girder end formwork 300 to move relative to the box girder side formwork 200 along the longitudinal direction of the box girder side formwork 200 and support the box girder end formwork 300.

[0034] According to the demoulding device of the box girder end formwork of the embodiment of the present application, since the support assembly 10 is detachably or movably arranged on the box girder bottom formwork 100 and detachably connected to the box girder side formwork, the telescopic drive assembly 20 is fixedly installed in the support assembly 10 and symmetrically and detachably connected to the box girder end formwork 300, under the telescopic drive of the telescopic drive assembly, the demoulding device can stably, reliably and evenly apply thrust or pull to the box girder end formwork 300, so as to realize the longitudinal movement of the box girder end formwork 300 relative to the box girder side formwork 200, thereby realizing the position adjustment of the box girder end formwork 300 during the installation and positioning process, the locking support of the box girder end formwork 300 after the installation and positioning of the box girder end formwork 300, and the demoulding after the pouring is completed. Therefore, compared with the existing technology, this technical solution is simple and convenient to operate, and it is easy to realize the installation, adjustment, positioning, support and demolding of the box girder end mold 300, which greatly improves the demolding efficiency of the box girder end mold 300, can meet the preparation requirements of different beam shapes, and will not affect the appearance of the beam body. The structure is stable and reliable, and it can be hoisted and transported in one time after demolding, thereby avoiding the long-term occupation of lifting tools during the demolding process and effectively saving the working hours of the gantry truck.

[0035] like Figure 1 and Figure 6 As shown, in one embodiment, the support assembly 10 includes a first support portion 101, a second support portion 102, and two oblique support portions 103. The two oblique support portions 103 are arranged opposite each other along the transverse direction of the box beam bottom formwork, with the first support portion 101 and the second support portion 102 respectively located at opposite ends of the oblique support portions 103. The telescopic drive assembly 20 is symmetrically located inside the two oblique support portions 103 and on the inner bottom of the first support portion 101, which is disposed on the box beam bottom formwork 100. Specifically, the support assembly 10 of the above-described structure is simple, stable, and reliable, and is easy to manufacture, facilitating a stable, reliable, and uniformly symmetrical arrangement of the telescopic drive assembly 20.

[0036] like Figure 2As shown, in one embodiment, a movable wheel set 40 is provided at the bottom of the first support portion 101 so that the support assembly 10 can be movably arranged on the box beam bottom formwork 100. The first support portion 101 is symmetrically provided with support platforms 104 on both sides of the box beam bottom formwork 100. The support platforms 104 are respectively used to set the pump station 400 and the electric control cabinet 500. Specifically, by providing the movable wheel set 40, the overall movement of the demoulding device is facilitated, improving the working flexibility of the demoulding device. By providing the support platforms 104 on both sides of the first support portion 101, it is possible to facilitate the arrangement of the pump station 400 and the electric control cabinet 500 required for the operation of the telescopic drive assembly 20. Furthermore, the bottom of the first support portion 101 is also symmetrically provided with support feet 106 to further increase the overall structural stability of the demoulding device. It is easy to understand that the pump station 400 can provide power for the telescopic drive member 201 in the form of a hydraulic cylinder in the telescopic drive assembly 20, and the electric control cabinet 500 is used to control the operation of the pump station 400 and the telescopic drive assembly 20. Specifically, the specific composition and working method of the pump station 400 and the electric control cabinet 500 can be implemented using existing technologies and will not be described in detail here.

[0037] like Figures 1 to 3 As shown, in one embodiment, a first connection portion 301 is provided on the outer side of the inclined support portion 103, and the first connection portion 301 is used to fix the connection to the lateral side of the box girder side form 200 along the longitudinal direction of the box girder side form 200; or, a first connection portion 301 is provided on the outer side of the inclined support portion 103, and a second connection portion 302 is provided on the lateral side of the box girder side form 200, and the first connection portion 301 is fixedly connected to the second connection portion 302 along the longitudinal direction of the box girder side form 200. Specifically, the first connecting portion 301 can be a connecting lug, connecting plate, or other structure, and a screw, bolt, or other fastener 303 passes through the connecting lug, connecting plate, or other structure to be directly fixedly connected to a lateral side of the box girder side form 200. Alternatively, a second connecting portion 302 can be provided on a lateral side of the box girder side form 200. The second connecting portion 302 can be a connecting lug, connecting plate, or other structure, and a screw, bolt, tie rod, or pin fastener 303 passes through the first connecting portion 301 and the second connecting portion 302 to securely connect the support assembly 10 to the lateral side of the box girder side form 200. This structure is simple, compact, stable, and reliable. It is easy to understand that in an embodiment not shown, the first connecting portion 301 can be a hook disposed longitudinally along the box girder side form 200, and a hanging point is provided on the second connecting portion 302. During installation, the hook is connected to the hanging point, and the hook is used to lock the position of the support assembly 10 along the longitudinal direction of the box girder side form 200, thereby achieving quick disassembly and installation.

[0038] like Figure 1As shown, in one embodiment, the first support portion 101, the second support portion 102, and the two oblique support portions 103 are composed of spaced and interconnected support rods, so that the support assembly 10 forms a bracket structure with a wide top and a narrow bottom. The support assembly 10 of this structural form is simple, stable, reliable, and easy to manufacture. Furthermore, the bracket structure with a wide top and a narrow bottom is similar to the appearance of the box girder end form 300, facilitating the symmetrical arrangement of the telescopic drive assembly 20 on the bracket structure to achieve stable, reliable, and uniform application of thrust and pull forces to the box girder end form 300.

[0039] like Figure 4 and Figure 5 As shown, in one embodiment, the telescopic drive assembly 20 includes a telescopic drive member 201, a first guide member 202 and a second guide member 203 arranged along the longitudinal direction of the box girder side form 200; wherein, the first guide member 202 is fixedly installed in the support assembly 10, the second guide member 203 is slidably connected to the first guide member 202, and one end of the second guide member 203 is used to detachably connect the box girder end form 300; the telescopic drive member 201 is fixedly installed on the first guide member 202 through the mounting seat 2021, and the telescopic end 2011 of the telescopic drive member 201 is fixedly connected to the second guide member 203, and the telescopic drive member 201 is used to drive the second guide member 203 to move relative to the first guide member 202 so that the box girder end form 300 moves relative to the box girder side form 200. Specifically, by providing a guide structure to guide the telescopic drive member 201 during the telescopic drive process, the telescopic drive member 201 can be prevented from deflecting during operation to a great extent, thereby ensuring that the telescopic drive member 201 can stably, reliably and evenly apply thrust or pull to the box girder end mold 300, and provide stable and reliable support during the demolding and erection process of the box girder end mold 300. Specifically, in one embodiment, a hinge portion 3010 is provided on the box girder end mold 300, and one end of the second guide member 203 is hinged to the hinge portion 3010 via a hinge member 3020 such as a pin. Specifically, the telescopic drive member 201 can be one or more of a hydraulic cylinder, an electric cylinder, a pneumatic cylinder, and an automatic telescopic rod, preferably a hydraulic cylinder. Specifically, the first guide member 202 of the plate-frame structure can be directly welded to the first support portion 101 and the oblique support portion 103, or connected to the first support portion 101 and the oblique support portion 103 via a flange plate.

[0040] In one embodiment, the first guide member 202 is a plate frame structure with openings at both ends, and the second guide member 203 is a square columnar structure passing through the plate frame structure, and one end of the columnar structure is slidably provided with a hinged ear seat 2031; the telescopic driving member 201 is fixedly installed on the top of the plate frame structure, and the telescopic end 2011 of the telescopic driving member 201 is hinged to the hinged ear seat 2031; the side of the plate frame structure is provided with a first connecting hole 2022, the side of the columnar structure is provided with a second connecting hole 2032, and the hinged ear seat 2031 is provided with a third connecting hole 2033; the first connecting hole 2022 and the second connecting hole 2032 are used for the locking member 30 to detachably lock the first guide member 202 and the second guide member 203, and the second connecting hole 2032 and the third connecting hole 2033 are used for the locking member 30 to detachably lock the second guide member 203 and the hinged ear seat 2031. Specifically, the second guide member 203 of a columnar structure cooperates with the first guide member 202 of a plate-frame structure for guidance, so that the sliding engagement portion between the first guide member 202 and the second guide member 203 can surround the outer periphery of the second guide member 203, thereby ensuring a stable and reliable sliding process. This also facilitates the processing of the various connection holes, making it easier to screw pins, bolts, screws, pull rods, or other locking members 30 into the various connection holes to detachably lock the first guide member 202 and the second guide member 203, as well as the second guide member 203 and the hinged lug 2031. Specifically, the second guide member 203 can be a square columnar structure or a rectangular columnar structure.

[0041] In one embodiment, the first connection holes 2022 are waist-shaped holes disposed longitudinally along the box girder side formwork 200, and the second connection holes 2032 are spaced longitudinally along the box girder side formwork 200, preferably at equal intervals. Specifically, by providing the waist-shaped holes on the first guide member 202, they can selectively mate with one or more of the equally spaced second connection holes 2032 on the second guide member 203 during sliding. This allows the fixed position of the articulated lug 2031 and the telescopic end of the telescopic drive member 201 on the second guide member 203 to be adjusted according to actual construction requirements. For example, if the telescopic drive member 201 is a hydraulic cylinder, and the hydraulic cylinder's travel range is insufficient, resulting in inadequate adjustment of the box girder end formwork 300, the position of the articulated lug 2031 can be adjusted to increase the support distance of the support assembly 10. In one embodiment, the top of the second guide member 203 is provided with equally spaced fourth connection holes 2034 corresponding to each of the second connection holes 2032. Furthermore, by setting a fourth connecting hole 2034 at the top of the second guide member 203 of the columnar structure, the connection with the first guide member 202 and the hinged ear seat 2031 can be further achieved through the fourth connecting hole 2034, and the position of the locking member 30 can be fine-tuned when locking the hinged ear seat 2031 or the first guide member 202 through the second connecting hole 2032 through the fourth connecting hole 2034, thereby improving the convenience and efficiency of assembly of the telescopic drive component 20.

[0042] Example 2

[0043] like Figure 7 and Figure 8 As shown, the demoulding device of the box girder end formwork of the embodiment of the present application is based on the same concept as the aforementioned embodiment 1, and the only difference from the aforementioned embodiment 1 is that the first support part 101 in the support assembly 10 is detachably connected to the box girder bottom formwork 100 along the longitudinal direction of the box girder side formwork 200 through a fixed column 107 provided at the inner bottom of the box girder side formwork 200, and the second support part 102 is symmetrically provided with third connection parts 105 along the transverse sides of the box girder bottom formwork 100, and the third connection parts 105 are respectively used for detachably connecting the back frame 2010 of the box girder side formwork 200 along the transverse direction of the box girder side formwork 200.

[0044] Specifically, the third connecting portion 105 is connected to the top longitudinal beam of the back frame 2010. Specifically, in this embodiment, the top of the second support portion 102 is used to set the pump station 400 and the electric control cabinet 500. In this way, there is no need to set the support platform 104 on both sides of the first support portion 101 and the movable wheel group 40 at the bottom of the first support portion 101, and there is no need to set a connecting structure between the inclined support portion 103 and the lateral side of the box beam side form 200. In this way, the structure of the demoulding device is greatly simplified, the operation is simple and convenient, and it is easy to realize the installation, adjustment, positioning, support and demoulding of the box beam end form. The demoulding efficiency of the box beam end form is greatly improved, and it can meet the preparation requirements of different beam shapes without affecting the appearance of the beam body. The structure is stable and reliable. After demoulding, it can be hoisted and transported in one go, thereby avoiding the long-term occupation of hoisting tools during the demoulding process and effectively saving the working hours of the gantry truck.

[0045] According to the above embodiments, it can be seen that the demoulding device for the box girder end formwork involved in the present application is simple and convenient to operate, and is easy to realize the installation, adjustment, positioning, support and demoulding of the box girder end formwork, which greatly improves the demoulding efficiency of the box girder end formwork, can meet the preparation requirements of different beam shapes, and will not affect the appearance of the beam body. The structure is stable and reliable, and after demoulding, it can be hoisted and transported in one time, thereby avoiding the long-term occupation of hoisting tools during the demoulding process and effectively saving the working hours of the gantry truck.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited to this description. Any changes or substitutions that can be easily made by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the appended claims.

Claims

1. A demoulding device for a box beam end formwork, characterized in that: It comprises a support assembly (10) and a telescopic drive assembly (20); wherein, The support assembly (10) is used to be arranged on the box beam bottom formwork (100) and detachably connected to the box beam side formwork (200); The telescopic drive assembly (20) is fixedly installed in the support assembly (10), and the telescopic drive assembly (20) is used to symmetrically and detachably connect the box beam end mold (300) to drive the box beam end mold (300) to move relative to the box beam side mold (200) along the longitudinal direction of the box beam side mold (200) and support the box beam end mold (300).

2. The demoulding device for the end formwork of a box beam according to claim 1, characterized in that: The telescopic drive assembly (20) comprises a telescopic drive member (201), a first guide member (202) and a second guide member (203) arranged along the longitudinal direction of the box beam side form (200); wherein, The first guide member (202) is fixedly installed in the support assembly (10), the second guide member (203) is slidably connected to the first guide member (202), and one end of the second guide member (203) is used for detachably connecting to the box beam end form (300); The telescopic driving member (201) is fixedly mounted on the first guide member (202), and the telescopic end (2011) of the telescopic driving member (201) is fixedly connected to the second guide member (203). The telescopic driving member (201) is used to drive the second guide member (203) to move relative to the first guide member (202) so as to move the box beam end mold (300) relative to the box beam side mold (200).

3. The demoulding device for the end formwork of a box beam according to claim 2, characterized in that: The first guide member (202) is a plate frame structure with openings at both ends, and the second guide member (203) is a columnar structure passing through the plate frame structure, with a hinged ear seat (2031) slidably provided at one end of the columnar structure; The telescopic driving member (201) is fixedly mounted on the top of the plate frame structure, and the telescopic end (2011) of the telescopic driving member (201) is hinged to the hinged ear seat (2031); A first connection hole (2022) is provided on the side of the plate frame structure, a second connection hole (2032) is provided on the side of the columnar structure, and a third connection hole (2033) is provided on the hinged ear seat (2031); The first connecting hole (2022) and the second connecting hole (2032) are used for the locking member (30) to detachably lock the first guide member (202) and the second guide member (203); the second connecting hole (2032) and the third connecting hole (2033) are used for the locking member (30) to detachably lock the second guide member (203) and the hinged ear seat (2031).

4. The demoulding device for the end formwork of a box beam according to claim 3, characterized in that: The first connection holes (2022) are waist-shaped holes arranged along the longitudinal direction of the box beam side form (200), and the second connection holes (2032) are arranged at intervals along the longitudinal direction of the box beam side form (200).

5. The demoulding device for the end formwork of a box beam according to claim 4, characterized in that: Fourth connection holes (2034) corresponding to the second connection holes (2032) are provided at intervals on the top of the second guide member (203).

6. The demoulding device for the end formwork of a box beam according to any one of claims 1 to 5, characterized in that: The support assembly (10) comprises a first support portion (101), a second support portion (102) and two oblique support portions (103); wherein, The two oblique support portions (103) are arranged opposite to each other in the transverse direction of the box beam bottom formwork (100), and the first support portion (101) and the second support portion (102) are respectively arranged at two ends of the oblique support portion (103); The telescopic drive assembly (20) is symmetrically arranged on the inner sides of the two oblique support parts (103) and the inner bottom of the first support part (101); the first support part (101) is used to be arranged on the box beam bottom formwork (100).

7. The demoulding device for the end formwork of a box beam according to claim 6, characterized in that: A movable wheel group (40) is provided at the bottom of the first supporting portion (101) so that the supporting assembly (10) can be movably arranged on the box beam bottom formwork (100). The first supporting portion (101) is symmetrically provided with supporting platforms (104) along both lateral sides of the box beam bottom formwork (100). The supporting platforms (104) are respectively used to set up a pump station (400) and an electric control cabinet (500).

8. The demoulding device for the end formwork of a box beam according to claim 7, characterized in that: A first connecting portion (301) is provided on the outer side of the oblique support portion (103), and the first connecting portion (301) is used to be detachably connected to a lateral side of the box beam side form (200) along the longitudinal direction of the box beam side form (200); or, A first connecting portion (301) is provided on the outer side of the oblique support portion (103), and a second connecting portion (302) is provided on the lateral side of the box beam side form (200), wherein the first connecting portion (301) is detachably connected to the second connecting portion (302) along the longitudinal direction of the box beam side form (200).

9. The demoulding device for the end formwork of a box beam according to claim 6, characterized in that: The first supporting portion (101) is detachably connected to the box beam bottom formwork (100), and the second supporting portion (102) is symmetrically provided with third connecting portions (105) along both sides of the box beam bottom formwork (100) in the transverse direction, and the third connecting portions (105) are respectively used to detachably connect the back frame (2010) of the box beam side formwork (200) in the transverse direction of the box beam side formwork (200).

10. The demoulding device for the end formwork of a box beam according to claim 6, characterized in that: The first support portion (101), the second support portion (102) and the two oblique support portions (103) are composed of support rods that are spaced apart and connected to each other, so that the support assembly (10) forms a bracket structure with a wide top and a narrow bottom.

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