Integral box culvert mold

Abstract

The utility model discloses an integral box culvert mould which comprises a base plate, an outer mould assembly, an outer mould driving mechanism, an inner mould assembly, an inner mould driving mechanism and a bottom mould, the outer mould assembly is movably arranged on the base plate, the outer mould driving mechanism is arranged between the base plate and the outer mould assembly, and the inner mould assembly is movably arranged on the base plate. The inner mold assembly is arranged in an area formed by the outer mold assembly in a surrounding mode, the inner mold driving mechanism is arranged between the base plate and the inner mold assembly, the bottom mold is connected to the base plate, the bottom mold is arranged below the area between the outer mold assembly and the inner mold assembly, and the bottom mold, the outer mold assembly and the inner mold assembly jointly form a box culvert forming area in a surrounding mode. The outer mold driving mechanism drives the outer mold assembly to open the mold, and the inner mold driving mechanism drives the inner mold assembly to open the mold, so that the technical problem that mold opening operation needs to be carried out manually through heavy auxiliary equipment such as a travelling crane is solved, the convenience of manual operation is improved, the labor cost is reduced, potential safety hazards are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of box culvert manufacturing technology, and in particular to an integral box culvert mold. Background Technology

[0002] A box culvert is a type of culvert constructed using reinforced concrete box-shaped pipe sections, primarily used in roads, railways, and water conservancy projects. Box culverts consist of one or more square or rectangular cross-sections, typically made of reinforced concrete, and offer advantages such as structural strength, high load-bearing capacity, good waterproofing, and high construction efficiency.

[0003] During the factory manufacturing process, pipe culverts are usually prefabricated using molds. The main process steps include: mold design, mold assembly, applying lubricant to the mold, placing the reinforcing cage, pouring concrete, molding and curing, demolding, surface finishing, and quality inspection.

[0004] The demolding process is a particularly technically challenging step. Traditional molds often use mechanical rollers for opening and closing, a process that typically requires the assistance of heavy equipment such as overhead cranes. However, this method not only increases the difficulty for workers but also introduces significant randomness and potential safety risks. Utility Model Content

[0005] This application provides an integral box culvert mold to solve the technical problems of inconvenient operation and safety hazards in the mold opening process of traditional box culvert molds.

[0006] This application provides an integral box culvert mold, including:

[0007] Chassis;

[0008] The outer mold assembly is movably mounted on the chassis;

[0009] An outer mold drive mechanism is disposed between the chassis and the outer mold assembly, and is used to drive the outer mold assembly to switch between an open mold state and a closed mold state;

[0010] An inner mold assembly is movably mounted on the chassis, and the inner mold assembly is disposed in the area formed by the outer mold assembly surrounding it;

[0011] An inner mold drive mechanism is disposed between the chassis and the inner mold assembly, and is used to drive the inner mold assembly to switch between an open mold state and a closed mold state.

[0012] The bottom mold is connected to the chassis and is located below the area between the outer mold assembly and the inner mold assembly, together with the outer mold assembly and the inner mold assembly to form the box culvert forming area.

[0013] The beneficial effects of the above embodiments are as follows: by driving the outer mold component to open the mold through the outer mold driving mechanism and driving the inner mold component to open the mold through the inner mold driving mechanism, the technical problem of needing to manually perform mold opening operations through heavy auxiliary equipment such as cranes is avoided, thereby improving the convenience of manual operation, reducing labor costs, reducing safety hazards, and improving work efficiency.

[0014] Based on the above embodiments, the embodiments of this application can be further improved as follows:

[0015] In one embodiment of this application, the system further includes: an outer mold guiding mechanism disposed between the chassis and the outer mold assembly, the outer mold guiding mechanism being used to guide the outer mold assembly to perform mold opening or mold closing actions; and an inner mold guiding mechanism disposed between the chassis and the inner mold assembly, the inner mold guiding mechanism being used to guide the inner mold assembly to perform mold opening or mold closing actions. The beneficial effects of this step are: the outer mold guiding mechanism, in conjunction with the outer mold driving mechanism, drives the outer mold assembly to switch between mold opening and mold closing states; and the inner mold guiding mechanism, in conjunction with the inner mold driving mechanism, drives the inner mold assembly to switch between mold opening and mold closing states.

[0016] In one embodiment of this application: the outer mold assembly includes: a first outer mold, with a straight section in the middle and inclined sections hinged at both ends; a second outer mold, which has an arc-shaped structure, and when in the mold-closed state, both ends of the second outer mold are connected to the inclined sections; and an outer mold positioning mechanism, disposed between the inclined sections and the ends of the second outer mold, the outer mold positioning mechanism being used to position the first outer mold and the second outer mold in the mold-closed state. The beneficial effect of this step is that, through the structural design of the outer mold assembly, the mechanized action of closing or opening the inner mold assembly can be realized.

[0017] In one embodiment of this application: the inner mold assembly includes: a middle inner mold group, comprising: an upper middle inner mold disposed on one side of the straight section; a lower middle inner mold disposed on one side of the second outer mold; a middle side inner mold symmetrically disposed on both sides of the upper middle inner mold and the lower middle inner mold, the middle side inner mold having a first hinge segment, wherein when the middle inner molds are combined, one end of the middle side inner mold is connected to the first hinge segment and the other end is connected to the lower middle inner mold; a first hinge drive mechanism connected to the first hinge segment and used to drive the first hinge segment to rotate; and a side inner mold group symmetrically disposed on both sides of the middle inner mold group, the side inner mold group comprising: a first side mold adjacent to the inclined section; a second side mold disposed between the first side mold and the adjacent middle side inner mold, the second side mold having a second hinge segment, wherein when the side inner molds are combined, the second hinge segment is connected to the end of the first side mold; and a second hinge drive mechanism connected to the second hinge segment and used to drive the second hinge segment to rotate. The beneficial effect of this step is that by designing the structure of the inner mold component, the action of closing or opening the inner mold component can be achieved mechanically.

[0018] In one embodiment of this application: the first outer mold and the second outer mold are in surface contact with each other, the upper middle inner mold and the middle side inner mold, the lower middle inner mold and the middle side inner mold are in surface contact with each other, the first side mold and the second side mold are in surface contact with each other, and a sealing structure is provided between the surface contact structures.

[0019] In one embodiment of this application, it further includes a tensioning mechanism disposed between the inner mold assembly and the outer mold assembly, and between the internal structures of the inner mold assembly. The beneficial effect of this step is that the tensioning mechanism improves the stability of the mold's closed state structure.

[0020] In one embodiment of this application: the upper surface of the bottom mold is a wedge-shaped surface.

[0021] In one embodiment of this application: the beneficial effect of this step is to increase the turnover speed of the mold between different stations by using rollers. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of a box culvert structure.

[0024] Figure 2 This is a schematic diagram of the overall box culvert mold in its closed state.

[0025] Figure 3 This is a schematic diagram of the first structure of the outer mold positioning mechanism;

[0026] Figure 4 This is a schematic diagram of the second structure of the outer mold positioning mechanism;

[0027] Figure 5 This is a schematic diagram of the tensioning mechanism.

[0028] Figure 6 This is a schematic diagram of the locking mechanism.

[0029] Figure 7 This is a partial structural diagram of the overall box culvert mold in the open state.

[0030] Among them, 1 is the chassis;

[0031] 2. Outer mold assembly, 201. First outer mold, 202. Second outer mold, 203. Outer mold positioning mechanism, 204. Connecting rod, 205. Claw, 206. Limiting seat, 207. Limiting plate, 208. Limiting shaft;

[0032] 3. External mold drive mechanism, 301 first drive component, 302 second drive component;

[0033] 4 Inner mold assembly, 401 Middle inner mold group, 402 Side inner mold group, 403 Middle upper inner mold, 404 Middle lower inner mold, 405 Middle side inner mold, 406 First hinge drive mechanism, 407 First side mold, 408 Second side mold, 409 Second hinge drive mechanism.

[0034] 5. Inner mold drive mechanism, 501 third drive component, 502 fourth drive component, 503 fifth drive component, 504 sixth drive component, 505 seventh drive component;

[0035] 6. Bottom mold;

[0036] 7. External mold guiding mechanism, 701 first slide rail, 702 second slide rail;

[0037] 8. Inner mold guiding mechanism, 801 third slide rail, 802 fourth slide rail, 803 fifth slide rail, 804 sixth slide rail, 805 seventh slide rail;

[0038] 9. Tensioning mechanism; 901. First pull rod; 902. First positioning seat; 903. First locking nut;

[0039] 10 Locking mechanism, 1001 Second pull rod, 1002 Second positioning seat, 1003 Second locking nut;

[0040] 11 rollers. Detailed Implementation

[0041] In this application, unless otherwise expressly specified and limited, the terminology used should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of different terms in this utility model according to the specific circumstances, and the scope of the specific meaning should be limited to achieving the function of this application.

[0042] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0043] like Figure 1 As shown, this is the box culvert structure to be produced by this mold. The upper part of this box culvert is a large flat surface, and the lower part is an arc-shaped surface. The interior is equipped with three cavities: the middle culvert, the left culvert, and the right culvert. For this type of box culvert structure, the main body of the mold includes a flat outer mold, an arc-shaped outer mold, and three inner molds corresponding to the three culvert openings.

[0044] like Figure 2 As shown, an integral box culvert mold includes: a chassis 1, an outer mold assembly 2, an outer mold drive mechanism 3, an inner mold assembly 4, an inner mold drive mechanism 5, and a bottom mold 6. The outer mold assembly 2 is movably mounted on the chassis 1. The outer mold drive mechanism 3 is located between the chassis 1 and the outer mold assembly 2 and is used to drive the outer mold assembly 2 to switch between an open mold state and a closed mold state. The inner mold assembly 4 is movably mounted on the chassis 1 and is located in the area formed by the outer mold assembly 2. The inner mold drive mechanism 5 is located between the chassis 1 and the inner mold assembly 4 and is used to drive the inner mold assembly 4 to switch between an open mold state and a closed mold state. The bottom mold 6 is connected to the chassis 1 and is located below the area between the outer mold assembly 2 and the inner mold assembly 4, and together with the outer mold assembly 2 and the inner mold assembly 4, forms the box culvert forming area.

[0045] In some embodiments of this application, such as Figure 2 As shown, the box culvert mold also includes: an outer mold guiding mechanism 7 and an inner mold guiding mechanism 8. The outer mold guiding mechanism 7 is located between the chassis 1 and the outer mold assembly 2. The outer mold guiding mechanism 7 is used to guide the outer mold assembly 2 to perform mold opening or mold closing actions. The inner mold guiding mechanism 8 is located between the chassis 1 and the inner mold assembly 4. The inner mold guiding mechanism 8 is used to guide the inner mold assembly 4 to perform mold opening or mold closing actions.

[0046] In some embodiments of this application, such as Figure 2As shown, the outer mold assembly 2 includes: a first outer mold 201, a second outer mold 202, and an outer mold positioning mechanism 203. The first outer mold 201 has a straight section in the middle and inclined sections hinged at both ends. The second outer mold 202 has an arc-shaped structure. When in the mold-closed state, the two ends of the second outer mold 202 are connected to the inclined sections. The outer mold positioning mechanism 203 is located between the inclined sections and the ends of the second outer mold 202. The outer mold positioning mechanism 203 is used to position the first outer mold 201 and the second outer mold 202 in the mold-closed state. When the first outer mold 201 and the second outer mold 202 are connected, it is in the mold-closed state. When the first outer mold 201 and the second outer mold 202 are separated, it is in the mold-opening state. Through the structural design of the outer mold assembly 2, the inner mold assembly 4 can be mechanically closed or opened.

[0047] In some embodiments of this application, such as Figure 2 , 3 As shown in Figure 4, multiple outer mold positioning mechanisms 203 are arranged between the inclined section and the adjacent end face of the second outer mold 202. When the outer mold assembly 2 is in the mold-closed state, the outer mold positioning mechanisms 203 are used to connect the first outer mold 201 and the second outer mold 202 into an integral structure. The outer mold positioning mechanism 203 includes: a connecting rod 204, a hook 205, a limiting seat 206, a limiting plate 207, and a limiting shaft 208. The limiting seats 206 of some outer mold positioning mechanisms 203 are installed on the inclined section, and the limiting seats 206 of the remaining outer mold positioning mechanisms 203 are installed on the end of the second outer mold 202. Through this structural arrangement, the cross-interlocking structure of the first outer mold 201 and the second outer mold 202 is realized, thereby further improving the stability of the structure in the mold-closed state. Taking the limit seat 206 connected to the end face of the inclined section as an example, the limit seat 206 is connected to symmetrical limit plates 207 on both sides through a shaft. The shaft is positioned and connected to the limit seat 206 through a pin. A limit shaft 208 is connected between the two limit plates 207. The connecting rod 204 is connected to the corresponding end of the second outer mold 202 through a hinge seat. The connecting rod 204 has an external thread. One end of the hook 205 is slidably set on the connecting rod 204 through a sleeve. The sleeve is positioned by a nut connected to the connecting rod 204 through a thread. The other end of the hook 205 is equipped with a hook groove, which is used to hook and connect with the limit shaft 208, thereby connecting the ends of the first outer mold 201 and the second outer mold 202 and preventing the inclined section from rotating when the mold is closed.

[0048] In some embodiments of this application, such as Figure 2 As shown, the inner module component 4 includes: a middle inner module 401 and an edge inner module 402.

[0049] In some embodiments of this application, such as Figure 2As shown, the inner module 401 includes: an upper inner mold 403, a lower inner mold 404, a side inner mold 405, and a first hinge drive mechanism 406. The upper inner mold 403 is disposed on one side of the straight section, the lower inner mold 404 is disposed on one side of the second outer mold 202, and the side inner mold 405 is symmetrically disposed on both sides of the upper inner mold 403 and the lower inner mold 404. The side inner mold 405 has a first hinge section. When the inner module 401 is closed, the side inner mold 405 is connected to the end of the first hinge section and the end of the lower inner mold 404, respectively. The first hinge drive mechanism 406 is connected to the first hinge section and is used to drive the first hinge section to rotate.

[0050] In some embodiments of this application, such as Figure 2 As shown, the inner side module 402 is symmetrically arranged on both sides of the inner middle module 401. The inner side module 402 includes: a first inner side module 407, a second inner side module 408, and a second hinge drive mechanism 409. The first inner side module 407 is adjacent to the inclined section. The second inner side module 408 is disposed between the first inner side module 407 and the adjacent inner middle module 405. The second inner side module 408 has a second hinge section. When the inner side module 402 is closed, the second hinge section is connected to the end of the first inner side module 407. The second hinge drive mechanism 409 is connected to the second hinge section and is used to drive the second hinge section to rotate.

[0051] In some embodiments of this application, such as Figure 2 As shown, both the outer mold guiding mechanism 7 and the inner mold guiding mechanism 8 adopt linear slide rails. The guide rails of the linear slide rails are mounted on the chassis 1, and the sliders of the linear slide rails are connected to the corresponding outer mold assembly 2 or inner mold assembly 4. The outer mold guiding mechanism 7, in conjunction with the outer mold driving mechanism 3, drives the outer mold assembly 2 to switch between the mold opening state and the mold closing state. Similarly, the inner mold guiding mechanism 8, in conjunction with the inner mold driving mechanism 5, drives the inner mold assembly 4 to switch between the mold opening state and the mold closing state.

[0052] In some embodiments of this application, such as Figure 2 As shown, the linear guide rail includes: a first guide rail 701, a second guide rail 702, a third guide rail 801, a fourth guide rail 802, a fifth guide rail 803, a sixth guide rail 804, and a seventh guide rail 805. A first outer mold 201 is mounted on the first guide rail 701, and a second outer mold 202 is mounted on the second guide rail 702. The first guide rail 701 and the second guide rail 702 are used to guide the first outer mold 201 and the second outer mold 202 to move along a first linear direction.

[0053] In some embodiments of this application, such as Figure 2As shown, the upper inner mold 403 is mounted on the third slide rail 801, the lower inner mold 404 is mounted on the fourth slide rail 802, and the middle inner mold 405 is mounted on the fifth slide rail 803. The third slide rail 801 and the fourth slide rail 802 are used to guide the upper inner mold 403 and the lower inner mold 404 to move along the first straight line direction, and the fifth slide rail 803 is used to guide the middle inner mold 405 to move along the second straight line direction, which is perpendicular to the first straight line direction.

[0054] In some embodiments of this application, such as Figure 2 As shown, the first side mold 407 is mounted on the sixth slide rail 804, and the second side mold 408 is mounted on the seventh slide rail 805. The sixth slide rail 804 is used to guide the first side mold 407 to move along the third straight line direction, and the seventh slide rail 805 is used to guide the second side mold 408 to move along the fourth straight line direction. The third straight line direction and the fourth straight line direction are at angles with the first straight line direction and the second straight line direction.

[0055] In some embodiments of this application, such as Figure 2 As shown, both the outer mold drive mechanism 3 and the inner mold drive mechanism 5 use hydraulic cylinders. The cylinder body of the hydraulic cylinder is hinged to the chassis 1, and the piston rod end of the hydraulic cylinder is hinged to the corresponding outer mold assembly 2 or inner mold assembly 4 through a bracket.

[0056] In some embodiments of this application, such as Figure 2 As shown, the outer mold driving mechanism 3 includes: a first driving member 301 and a second driving member 302. The first driving member 301 is connected to the first outer mold 201, and the second driving member 302 is connected to the second outer mold 202.

[0057] In some embodiments of this application, such as Figure 2 As shown, the inner mold driving mechanism 5 includes: a third driving member 501, a fourth driving member 502, a fifth driving member 503, a sixth driving member 504, and a seventh driving member 505. The third driving member 501 is connected to the upper inner mold 403, the fourth driving member 502 is connected to the lower inner mold 404, the fifth driving member 503 is connected to the middle side inner mold 405, the sixth driving member 504 is connected to the first side mold 407, and the seventh driving member 505 is connected to the second side mold 408.

[0058] In some embodiments of this application, such as Figure 2 As shown, the overall box culvert mold also includes a tensioning mechanism 9, which is disposed between the inner mold assembly 4 and the outer mold assembly 2, and between the internal structures of the inner mold assembly 4. The tensioning mechanism improves the stability of the mold structure in the closed state.

[0059] In some embodiments of this application, such as Figure 2As shown, a tensioning mechanism 9 is provided between the first outer mold 201 and the upper inner mold 403, the first side mold 407, and the second side mold 408. A tensioning mechanism 9 is also provided between the second outer mold 202 and the lower inner mold 404, the middle side inner mold 405, the first side mold 407, and the second side mold 408. A tensioning mechanism 9 is also provided between the middle side inner mold 405 and the first side mold 407.

[0060] In some embodiments of this application, such as Figure 2 , 5 As shown, the tensioning mechanism 9 includes: a first pull rod 901, a first positioning seat 902, and a first locking nut 903. The first pull rod 901 is hinged to the upper end face of the first outer mold 201, the second outer mold 202, and the middle side mold via a bracket. The first positioning seat 902 is connected to the upper end face of the middle upper inner mold 403, the middle lower inner mold 404, the first side mold 407, and the second side mold 408, respectively. The upper end of the first positioning seat 902 is provided with a first positioning groove, which is a U-shaped through groove. The first pull rod 901 has a threaded section. When the threaded section is flipped and inserted into the first positioning groove, the first locking nut 903 connected to the threaded section presses against the outer side of the first positioning seat 902 from both sides, thereby locking the first pull rod 901 to the first positioning seat 902, thus realizing the positioning connection between the outer mold assembly 2 and the inner mold assembly 4, and the internal structure of the inner mold assembly 4.

[0061] In some embodiments of this application, such as Figure 2 , 6 As shown, the overall box culvert mold also includes: a locking mechanism 10, which is located at the hinge structure of the first outer mold 201, between the inclined section and the second outer mold 202, between the upper inner mold 403 and the first hinge section, between the lower inner mold 404 and the middle side inner mold 405, at the hinge structure of the middle side inner mold 405, between the first side mold 407 and the second hinge section, and at the hinge structure of the second side mold 408. The locking mechanism 10 is similar in structure to the tensioning mechanism 9. When mold closing is required, the locking structure locks the moving parts or separable parts together, thereby improving the stability of the structure.

[0062] In some embodiments of this application, such as Figure 2As shown, the locking mechanism 10 includes: a second pull rod 1001, a second positioning seat 1002, and a second locking nut 1003. Taking the locking mechanism 10 at the hinge of the first outer mold 201 as an example, the second pull rod 1001 is hinged to the straight section through a bracket, and the inclined section is connected to the second positioning seat 1002. The upper end of the second positioning seat 1002 is provided with a second positioning groove, which is a U-shaped through groove. The second pull rod 1001 has a threaded section. When the threaded section is flipped and inserted into the second positioning groove, the second locking nut 1003 connected to the threaded section presses the side of the second positioning seat 1002 from the outside in a one-way direction, thereby locking the second pull rod 1001 to the second positioning seat 1002, that is, positioning and connecting the straight section and the inclined section. When in the mold closed state, all other listed parts are connected and positioned by the locking mechanism 10.

[0063] In some embodiments of this application, the upper surface of the bottom mold 6 is a wedge-shaped surface, so that the upper surface of the bottom mold 6 forms a structure that is higher on the left and lower on the right in the direction shown in the figure.

[0064] In some embodiments of this application, such as Figure 2 As shown, the chassis 1 is equipped with multiple rollers 11, which are rolled in tracks on the factory floor, thereby increasing the rotation speed of the mold between different workstations.

[0065] In some embodiments of this application, the first outer mold 201 and the second outer mold 202 have a surface contact structure; the hinge structure of the first outer mold 201 (i.e., the contact surface between the straight section and the inclined section) has a surface contact structure; the upper inner mold 403 and the middle inner mold 405, the lower inner mold 404 and the middle inner mold 405 have a surface contact structure; the first side mold 407 and the second side mold 408 have a surface contact structure; the hinge structure of the middle inner mold 405 and the hinge structure of the second side mold 408 have a surface contact structure; and a sealing structure is provided between the surface contact structures. Specifically, the surface contact structure uses a sealing strip, and a sealing groove is formed on one side surface of the surface contact structure. A sealing strip is inserted into the sealing groove, and the sealing structure is achieved by pressing the sealing strip into the sealing groove through the other surface.

[0066] When using this type of integral box culvert mold, the hydraulic cylinder is manually activated via an operating platform, causing both the outer mold assembly 2 and the inner mold assembly 4 to be in the closed state. The mold is then positioned as a whole by the outer mold positioning mechanism 203, the tensioning mechanism 9, and the locking mechanism 10. After the box culvert is poured, the outer mold positioning mechanism 203, the tensioning mechanism 9, and the locking mechanism 10 are unlocked, and the outer mold driving mechanism 3 and the inner mold driving mechanism 5 drive the outer mold assembly 2 and the inner mold assembly 4 to separate from the box culvert, forming a shape as shown in the image. Figure 7The mold-opening structure shown avoids the technical problem of traditional structures requiring manual operation using heavy auxiliary equipment such as cranes for mold-opening, thereby improving the convenience of manual operation, reducing labor costs, reducing safety hazards, and improving work efficiency.

[0067] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A mold for an integral box culvert, characterized in that, include: Chassis; The outer mold assembly is movably mounted on the chassis; An outer mold drive mechanism is disposed between the chassis and the outer mold assembly, and is used to drive the outer mold assembly to switch between an open mold state and a closed mold state; An inner mold assembly is movably mounted on the chassis, and the inner mold assembly is disposed in the area formed by the outer mold assembly surrounding it; An inner mold drive mechanism is disposed between the chassis and the inner mold assembly, and is used to drive the inner mold assembly to switch between an open mold state and a closed mold state. The bottom mold is connected to the chassis and is located below the area between the outer mold assembly and the inner mold assembly, together with the outer mold assembly and the inner mold assembly to form the box culvert forming area.

2. The integral box culvert mold according to claim 1, characterized in that, Also includes: An outer mold guiding mechanism is disposed between the chassis and the outer mold assembly, and the outer mold guiding mechanism is used to guide the outer mold assembly to perform mold opening or mold closing actions; An inner mold guiding mechanism is disposed between the chassis and the inner mold assembly, and the inner mold guiding mechanism is used to guide the inner mold assembly to perform mold opening or mold closing actions.

3. The integral box culvert mold according to claim 2, characterized in that, The outer mold assembly includes: The first outer mold has a straight section in the middle and inclined sections at both ends; The second outer mold has an arc-shaped structure. When it is in the closed state, both ends of the second outer mold are connected to the inclined section. An outer mold positioning mechanism is disposed between the inclined section and the end of the second outer mold, and the outer mold positioning mechanism is used to position the first outer mold and the second outer mold in the mold closing state.

4. The integral box culvert mold according to claim 3, characterized in that, The inner mold assembly includes: The internal module includes: The upper inner mold is located on one side of the straight section; The lower inner mold is located on one side of the second outer mold; The middle inner mold is symmetrically arranged on both sides of the upper middle inner mold and the lower middle inner mold. The middle inner mold has a first hinge section. When the middle inner mold is assembled, one end of the middle inner mold is connected to the first hinge section and the other end is connected to the lower middle inner mold. A first hinge drive mechanism is connected to the first hinge segment and is used to drive the first hinge segment to rotate; The inner edge modules are symmetrically arranged on both sides of the inner center module, and the inner edge modules include: The first side module is adjacent to the inclined segment; The second side mold is disposed between the first side mold and the adjacent middle inner mold. The second side mold has a second hinge section. When the side inner mold is assembled, the second hinge section is connected to the end of the first side mold. The second hinge drive mechanism is connected to the second hinge segment and is used to drive the second hinge segment to rotate.

5. The integral box culvert mold according to claim 4, characterized in that, The first outer mold and the second outer mold have a surface contact structure, the upper middle inner mold and the middle side inner mold, the lower middle inner mold and the middle side inner mold have a surface contact structure, the first side mold and the second side mold have a surface contact structure, and a sealing structure is provided between the surface contact structures.

6. The integral box culvert mold according to claim 1, characterized in that, Also includes: A tensioning mechanism is disposed between the inner mold assembly and the outer mold assembly, and between the internal structures of the inner mold assembly.

7. The integral box culvert mold according to claim 1, characterized in that, The upper surface of the bottom mold is a wedge-shaped surface.

8. The integral box culvert mold according to claim 1, characterized in that, The chassis is equipped with rollers.

Images