Forming die for precast concrete member

Abstract

The utility model discloses a forming die of a prefabricated concrete member, and belongs to the technical field of prefabricated pipe galleries. Comprising a base, an inner mold and an outer mold, and a first quick-release fixing piece is arranged between the inner mold and the outer mold; supporting beams are arranged on the inner side of the base, the inner mold is arranged on the supporting beams, and the outer side of the inner mold abuts against the inner side of the base; the inner mold is formed by splicing two n-shaped half molds front and back; the two n-shaped half molds are oppositely arranged, the two connected edges of the n-shaped half molds are provided with splicing inclined faces matched with each other, and a positioning structure is arranged between the two connected splicing inclined faces of the n-shaped half molds. A second quick-release fixing piece is arranged between the n-shaped half mold and the base; each n-shaped half mold comprises a transverse mold plate, an opening assembly and two longitudinal mold plates. The transverse template is positioned between the front ends or the rear ends of the two longitudinal templates and is flexibly connected with the longitudinal templates; the other end of each longitudinal template is provided with a splicing inclined surface; the left end and the right end of the opening assembly are arranged on the inner sides of the two longitudinal formworks respectively, the length of the opening assembly is adjustable, and the opening assembly is far away from the transverse formwork.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated pipe gallery, and in particular relates to a forming mould of prefabricated concrete components, which can be used for producing transformer foundations or ring network cabinet foundations and the like. Background Art

[0002] Transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main components are primary coil, secondary coil and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. According to the purpose, it can be divided into: distribution transformer, power transformer, fully sealed transformer, combined transformer, dry transformer, oil-immersed transformer, single-phase transformer, electric furnace transformer, rectifier transformer, reactor, anti-interference transformer, lightning protection transformer, box-type transformer test transformer, corner transformer, high current transformer, excitation transformer, etc. Box-type substation is suitable for residential areas, urban public transformers, bustling downtown areas, construction power supplies, etc. Users can choose box-type transformers according to different usage conditions and load levels. Box-type transformers need to be set on the corresponding basis.

[0003] For example, the patent with application number CN201720005678.8 discloses a prefabricated substation, including a box body, in which a low-voltage chamber, a transformer chamber and a high-voltage chamber are arranged side by side in sequence, the top of the box body is a double-layer box top, a heat-insulating air layer is arranged in the middle of the box top, and the bottom of the box body is an integrated base; cooling air inlets and outlets are respectively arranged at the base positions corresponding to the bottom of the low-voltage chamber, the transformer chamber and the high-voltage chamber, a basic platform is arranged at the lower edge of the base, the basic platform is arranged on the ground, and is connected to the lower edge of the base through channel steel, a vent is arranged on the side of the basic platform, and a shutter and a protective net are installed on the vent, a cable room is arranged under the ground directly below the base for placing incoming and outgoing cables, and the incoming and outgoing cables are connected to the box body through the base; the high-voltage chamber is provided with a high-voltage chamber switch door on the side of the box body, with the high-voltage chamber switch door as the front, and a high-voltage chamber incoming line cabinet, a high-voltage chamber first outgoing line cabinet and a high-voltage chamber second outgoing line cabinet are arranged side by side in sequence in the high-voltage chamber, and the high-voltage chamber The bottom of the incoming line cabinet is connected to the incoming line cable, the high-voltage room incoming line cabinet, the first outgoing line cabinet of the high-voltage room and the second outgoing line cabinet of the high-voltage room are electrically connected in sequence, and the upper parts of the first outgoing line cabinet of the high-voltage room and the second outgoing line cabinet of the high-voltage room are electrically connected to the transformer in the transformer room; the low-voltage room is provided with a low-voltage room switch door on the side of the box body, with the low-voltage room switch door as the front, and the low-voltage room incoming line cabinet, the low-voltage room outgoing line cabinet and the capacitor cabinet are arranged side by side in sequence in the low-voltage room, the bottom of the low-voltage room incoming line cabinet is electrically connected to the transformer, and the low-voltage room incoming line cabinet is electrically connected to the transformer. The cabinet, the low-voltage room outlet cabinet and the capacitor cabinet are electrically connected in sequence; the low-voltage room incoming cabinet, the low-voltage room outlet cabinet and the capacitor cabinet are respectively provided with partition plates, and the partition plates separate the low-voltage room incoming cabinet, the low-voltage room outlet cabinet and the capacitor cabinet into two parts, the upper part of the low-voltage room incoming cabinet is a metering room, and the lower part is provided with a drawer-type circuit breaker; the upper part of the low-voltage room outlet cabinet is provided with an AC ammeter, and the lower part is provided with a molded case circuit breaker and a first knife switch; the upper part of the capacitor cabinet is provided with a capacitor controller, and the lower part is provided with an intelligent capacitor and a second knife switch.

[0004] As described in patent CN201720005678.8, the existing precast concrete component forming mold includes a bottom plate, a lower foundation and an upper foundation arranged in sequence from bottom to top, and the upper foundation is exposed to the ground. The lower foundation and the upper foundation are both rectangular cylindrical structures, formed by concrete. Corresponding molds can be used for production.

[0005] For example, the patent with application number CN202121298988.6 discloses a mold for processing the base of a box-type substation, including an inner base mold, an upper fixing rod, an outer base mold, a bottom support frame 1, a clamping fixture, a quick-release fixture, an upper cover inner mold, an upper cover outer mold and a bottom support frame 2, wherein the upper surface of the bottom support frame 1 is provided with an inner base mold and an outer base mold, the outer base mold is located on the outside of the inner base mold, the bottom support frame 1 is provided with a clamping fixture for fixing the outer base mold, and an upper fixing rod is evenly fixed between the upper ends of the outer base mold and the inner base mold; the upper surface of the bottom support frame 2 is provided with a side vertical template 1 and an upper L-shaped template 2, and a side vertical template 1 and an upper L-shaped template 2 are provided between them. Bolt connection, and the side vertical template one and the upper L-shaped template two form a rectangle, the upper end of the upper L-shaped template two is connected with the upper L-shaped template and the side vertical template two by bolts, the upper L-shaped template and the side vertical template two form an L-shaped structure, and the upper ends of the upper L-shaped template and the side vertical template two are in the same horizontal plane with the upper end of the side vertical template one, and the upper L-shaped template, the side vertical template two and the side vertical template one form a boss-shaped rectangular frame, the upper surface of the bottom support frame two is provided with an upper cover inner membrane tool, the upper cover inner membrane tool is located on the inner side of the rectangular frame formed by the upper L-shaped template, the side vertical template two and the side vertical template one, and the upper cover inner membrane tool is fixed to the upper L-shaped template, the side vertical template two and the side vertical template one by quick-release fasteners.

[0006] The inner mold in the prior art is a square-shaped structure. After the molding is completed, the prior art is not convenient for demoulding (although the outer side of the inner mold and the inner side of the outer mold are both provided with demoulding oil). Utility Model Content

[0007] In order to solve the above problems, the embodiment of the utility model provides a forming mold for precast concrete components, wherein the inner mold adopts a two-section structure, and one end of the single-section structure can be slightly retracted inward to separate the inner mold part from the product for easy demoulding. The technical solution is as follows:

[0008] An embodiment of the present utility model provides a forming mold for precast concrete components, including a base 2, an inner mold 1 and an outer mold 3. The base 2, the inner mold 1 and the outer mold 3 are all in a rectangular frame structure and are arranged along the front-rear direction. The bottoms of the inner mold 1 and the outer mold 3 are respectively located on the inner and outer sides of the base 2. The base 2, the inner mold 1 and the outer mold 3 enclose a precast cavity. Between the tops of the four sides of the inner mold 1 and the corresponding sides of the outer mold 3, there are first quick-release fixing members 4; on the inner side of the base 2, there are multiple support beams 5 evenly distributed. The support beams 5 are horizontally arranged. The inner mold 1 is placed on the support beams 5 and its outer side abuts against the inner side of the base 2; the inner mold 1 is formed by splicing two U-shaped half molds 6 front and back; the two U-shaped half molds 6 are arranged oppositely, and the two adjacent sides are provided with mutually matching splicing inclined surfaces 7, and a positioning structure 8 is arranged between the two adjacent splicing inclined surfaces 7; between the bottoms of the three sides of the U-shaped half mold 6 and the corresponding sides of the base 2, there are second quick-release fixing members 9; the U-shaped half mold 6 includes a transverse template 61, a撑开组件63 (it seems there is a typo here, maybe it should be a specific component name, but I'll keep it as is for now) and two longitudinal templates 62. The transverse template 61 and the撑开组件63 are both arranged along the left-right direction, and the longitudinal templates 62 are arranged along the front-rear direction; the transverse template 61 is located between the front ends or the rear ends of the two longitudinal templates 62, and is flexibly connected to the longitudinal templates 62 so that the ends of the two longitudinal templates 62 far from the transverse template 61 can approach each other; the other ends of the longitudinal templates 62 are both provided with splicing inclined surfaces 7, and the splicing inclined surfaces 7 are inclined forward or backward from the inside to the outside; the left and right ends of the撑开组件63 are respectively arranged on the inner sides of the two longitudinal templates 62, its length is adjustable, and it is arranged far from the transverse template 61.

[0009] Specifically, in the embodiment of the present utility model, the bottoms of the transverse template 61 and the longitudinal templates 62 are placed on the corresponding support beams 5. The transverse template 61 is located on the inner side of the front or rear of the base 2, and the longitudinal templates 62 are located on the inner side of the left or right of the base 2; for the front U-shaped half mold 6, the transverse template 61 is located between the front ends of the two longitudinal templates 62, the撑开组件63 is arranged between the rear parts of the two longitudinal templates 62, and the rear ends of the two longitudinal templates 62 are both splicing inclined surfaces 7; for the rear U-shaped half mold 6, the transverse template 61 is located between the rear ends of the two longitudinal templates 62, the撑开组件63 is arranged between the front parts of the two longitudinal templates 62, and the front ends of the two longitudinal templates 62 are both splicing inclined surfaces 7.

[0010] Specifically, the included angle between the splicing inclined surface 7 and the corresponding longitudinal template 62 in the embodiment of the present utility model is 45°.

[0011] Specifically, one end outside of the longitudinal template 62 in the embodiment of the present utility model is flexibly connected to the corresponding end outside of the transverse template 61 through a thin steel plate 64, and a mutually cooperating avoidance inclined surface 65 is provided at the connection position. The other end of the longitudinal template 62 can rotate inward. The avoidance inclined surface 65 is located inside the thin steel plate 64, and the distance between the two avoidance inclined surfaces 65 at the connection position gradually increases from outside to inside to form a gap.

[0012] Among them, the positioning structure 8 in the embodiment of the present utility model includes a plurality of jacks arranged side by side up and down and pins arranged side by side up and down and cooperating with the jacks. The pins and jacks are respectively arranged on two adjacent splicing inclined surfaces 7; the pins are arranged on the inner splicing inclined surface 7 and are inserted into the corresponding jacks; when the longitudinal template 62 rotates inward, the pins can be separated from the jacks.

[0013] Specifically, the support beam 5 in the embodiment of the present utility model is a square steel, which is perpendicular to the corresponding side of the base 2, its outer end is fixed on the base 2, and its inner end extends inward relative to the corresponding side of the inner mold 1.

[0014] Among them, the撑开组件63 in the embodiment of the present utility model is located between the second quick-release fixing member 9 and the first quick-release fixing member 4 and includes a connecting sleeve and two connecting screws; the two connecting screws are respectively arranged inside two longitudinal templates 62, they are arranged along the left-right direction, and they are rotatably arranged on the longitudinal templates 62 through a front-back rotating shaft; the connecting sleeve is arranged along the left-right direction and its two ends are respectively threadedly connected to the two connecting screws; by rotating the connecting sleeve, the two connecting screws approach or move away from each other.

[0015] Among them, the second quick-release fixing member 9 in the embodiment of the present utility model is arranged vertically, and the first quick-release fixing member 4 is arranged along the front-back direction or the left-right direction.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the present utility model are as follows: The embodiment of the present utility model provides a forming mold for precast concrete components. The inner mold adopts a two-section structure. One end of the single-section structure can be slightly contracted inward to separate the inner mold part from the product, facilitating demolding. During demolding, first operate the short U-shaped half mold, and then operate the long U-shaped half mold. When operating the short U-shaped half mold, first loosen the first quick-release fixing member and the second quick-release fixing member, and then rotate the撑开组件 to make it contract, so that the other end of the longitudinal template rotates inward and leaves the product. The operation method of the long U-shaped half mold is the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the forming mold for precast concrete components provided by the embodiment of the present utility model;

[0018] Figure 2 is Figure 1 It should be noted that the term "撑开组件" in the original text seems to be a misspelling or an undefined term in the context. It is translated as "撑开组件" here for the sake of consistency with the original text, but it may need to be corrected or further defined according to the actual situation.Schematic structural diagram when the inner mold is loosened;

[0019] Figure 3 is Figure 2 partial enlarged view;

[0020] Figure 4 Schematic structural diagram of a U-shaped half mold;

[0021] Figure 5 Schematic structural diagram of another U-shaped half mold.

[0022] In the figure: 1 inner mold, 2 base, 3 outer mold, 4 first quick-release fixing part, 5 support beam, 6 U-shaped half mold, 7 splicing inclined surface, 8 positioning structure, 9 second quick-release fixing part;

[0023] 61 transverse template, 62 longitudinal template, 63撑开组件 (the specific term '撑开组件' needs to be further determined according to the actual situation, here it is directly transliterated), 64 thin steel plate, 65 avoidance inclined surface. Specific implementation mode

[0024] To make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Embodiment 1

[0026] See Figure 1-5 , Embodiment 1 provides a forming mold for precast concrete components, including a base 2, an inner mold 1, an outer mold 3, etc. The base 2, the inner mold 1 and the outer mold 3 are all in a square structure and are arranged along the front-back direction. The bottoms of the inner mold 1 and the outer mold 3 are respectively located on the inner and outer sides of the base 2. The base 2, the inner mold 1 and the outer mold 3 enclose a precast cavity (square cavity). Between the tops of the four sides (front side, rear side, left side and right side respectively) of the inner mold 1 and the corresponding sides of the outer mold 3, there are first quick-release fixing parts 4 (arranged along the front-back direction or the left-right direction). Specifically, the first quick-release fixing parts 4 on the front and rear sides of the inner mold 1 are arranged along the front-back direction, and the first quick-release fixing parts 4 on the left and right sides of the inner mold 1 are arranged along the left-right direction.

[0027] The foregoing structure is basically the same as that of the existing forming die, except that: multiple support beams 5 are evenly distributed inside the base 2 in this embodiment. Specifically, multiple support beams 5 are arranged side by side in the left-right direction on the front and rear edges of the base 2 (arranged along the front-rear direction), and multiple support beams 5 are arranged side by side in the front-rear direction on the left and right edges of the base 2 (arranged along the left-right direction). The support beams 5 are horizontally arranged, specifically square steel, perpendicular to the corresponding side of the base 2, with their outer ends fixed on the base 2 and their inner ends extending inwards relative to the corresponding side of the inner mold 1 to ensure that the inner ends of the longitudinal templates 62 can rotate inwards (the support beams 5 always support). The inner mold 1 is placed on the support beams 5 and its outer side abuts against the inner side of the base 2. The inner mold 1 is formed by splicing two U-shaped half-molds 6 front and back; the two U-shaped half-molds 6 are arranged oppositely, and the two adjacent sides are provided with mating splicing inclined surfaces 7 (the inner splicing inclined surface 7 and the outer splicing inclined surface 7 respectively), and a positioning structure 8 is provided between the two adjacent splicing inclined surfaces 7, and their lengths are equal or unequal (preferably unequal). The inclination angles of the inner splicing inclined surface 7 and the outer splicing inclined surface 7 are equal, and when splicing, the inner splicing inclined surface 7 and the outer splicing inclined surface 7 abut against each other. Second quick-release fixing members 9 (vertically arranged) are provided between the bottoms of the three sides (left side, right side, and front side or rear side) of the U-shaped half-mold 6 and the corresponding sides of the base 2. The U-shaped half-mold 6 includes a transverse template 61, a spreading assembly 63, and two longitudinal templates 62. The transverse template 61 and the spreading assembly 63 are both arranged along the left-right direction, and the longitudinal templates 62 are arranged along the front-rear direction. The transverse template 61 is located between the front ends or rear ends of the two longitudinal templates 62, and is flexibly connected to the longitudinal templates 62 so that the ends of the two longitudinal templates 62 far from the transverse template 61 (the ends far from the transverse template 61) can approach each other. The bottoms of the transverse template 61 and the longitudinal templates 62 are placed on the corresponding support beams 5, their outer sides are smooth, and their inner sides are provided with reinforcing ribs. The transverse template 61 is located inside the front or rear of the base 2, and the longitudinal templates 62 are located inside the left or right of the base 2. The other ends of the longitudinal templates 62 can rotate. First quick-release fixing members 4 are provided at the bottoms of the transverse template 61 and the longitudinal templates 62, and second quick-release fixing members 9 are provided at their tops. Splicing inclined surfaces 7 are provided at the other ends of the longitudinal templates 62. The splicing inclined surfaces 7 are inclined forward or backward from the inside to the outside; specifically, the angle between the splicing inclined surface 7 and the corresponding longitudinal template 62 is 45°. The left and right ends of the spreading assembly 63 are respectively arranged on the inner sides of the two longitudinal templates 62, its length is adjustable, and it is arranged away from the transverse template 61. During forming, the spreading assembly 63 extends, so that the longitudinal templates 62 abut against the corresponding sides of the base 2. During demolding, the spreading assembly 63 contracts, the other ends of the longitudinal templates 62 rotate inwards, and the longitudinal templates 62 are separated from the inner wall of the product, facilitating the upward removal of the prefabricated cavity of the product.

[0028] Specifically, refer to Figure 1-5, in the embodiment of the present utility model, for the U-shaped half-mold 6 in the front, the transverse template 61 is located between the front ends of the two longitudinal templates 62, the撑开 component 63 is arranged between the rear parts of the two longitudinal templates 62, and the rear ends of the two longitudinal templates 62 are both splicing inclined surfaces 7. For the U-shaped half-mold 6 in the rear, the transverse template 61 is located between the rear ends of the two longitudinal templates 62, the撑开 component 63 is arranged between the front parts of the two longitudinal templates 62, and the front ends of the two longitudinal templates 62 are both splicing inclined surfaces 7.

[0029] Specifically, referring to Figure 4-5 , in the embodiment of the present utility model, between the outer side of one end of the longitudinal template 62 and the outer side of the corresponding end of the transverse template 61 is flexibly connected by a thin steel plate 64, and a mutually matching avoidance inclined surface 65 is arranged at the connection part. The avoidance inclined surface 65 is located inside the thin steel plate 64, and the distance between the two avoidance inclined surfaces 65 at the connection part gradually increases from outside to inside to form a gap to ensure that the other end of the longitudinal template 62 can rotate inwards. Specifically, avoidance inclined surfaces 65 are arranged at both ends of the transverse template 61 (obliquely arranged from outside to inside towards the middle of the transverse template 61), and an avoidance inclined surface 65 is arranged at one end of the longitudinal template 62 (obliquely arranged from outside to inside towards the other end of the longitudinal template 62).

[0030] Among them, referring to Figure 2-3 and 5, the positioning structure 8 in the embodiment of the present utility model includes a plurality of jacks (specifically round holes) arranged side by side up and down and pins (specifically round pins, with a diameter smaller than that of the jacks and a pointed end) arranged side by side up and down and matching with the jacks. The pins and the jacks are respectively arranged on two adjacent splicing inclined surfaces 7. The pin is arranged on the inner splicing inclined surface 7 and is inserted into the corresponding jack. When the longitudinal template 62 rotates inwards, the arrangement of the pin should ensure that it can be separated from the jack.

[0031] Among them, referring to Figure 1-5 , the撑开 component 63 (specifically arranged in the middle of the longitudinal template 62) in the embodiment of the present utility model is located between the second quick-release fixing part 9 and the first quick-release fixing part 4 and includes a connecting sleeve and two connecting screws. The two connecting screws are respectively arranged on the inner sides of the two longitudinal templates 62, are arranged in the left-right direction, and are rotatably arranged on the longitudinal template 62 through a front-back rotating shaft (the connecting screw can move slightly in the front-back direction relative to the rotating shaft to facilitate the expansion and contraction of the撑开 component 63. Specifically, both ends of the rotating shaft are arranged on two hinge seats, a through hole for the rotating shaft to pass through is arranged on the connecting screw, and there is a gap between it and the hinge seat). The connecting sleeve is arranged in the left-right direction and its two ends are respectively threadedly connected with the two connecting screws. By rotating the connecting sleeve, the two connecting screws (with the thread directions arranged in a matching manner) approach or move away from each other. Further, a through hole is vertically arranged in the middle of the connecting sleeve, and a rotating rod can be inserted into the through hole during rotation, and the rotating rod and the connecting sleeve form a cross shape.

[0032] Embodiment 2

[0033] See Figure 1-5 Figure 1-5 , Embodiment 2 provides a forming mold for precast concrete components, whose structure is basically the same as that of Embodiment 1, except that: in this embodiment, the lengths of the two U-shaped half-molds 6 are not equal. The length of the front U-shaped half-mold 6 is 2300 mm, and the length of the rear U-shaped half-mold 6 is 1100 mm. All four splicing inclined surfaces 7 are inclined backward from outside to inside, and the dowel pin is arranged on the splicing inclined surface 7 of the front U-shaped half-mold 6.

[0034] Before pouring concrete, first rotate the撑开组件63 to make it extend, so that the longitudinal template 62 abuts against the inner side of the base 2, and then lock the first quick-release fixing member 4 and the second quick-release fixing member 9. When demolding, first operate the rear U-shaped half-mold 6, and then operate the front U-shaped half-mold 6. When operating the rear U-shaped half-mold 6, first loosen the first quick-release fixing member 4 and the second quick-release fixing member 9, and then rotate the撑开组件63 to make it contract, so that the other end of the longitudinal template 62 rotates inward and leaves the product. The operation method of the front U-shaped half-mold 6 is the same, and the rotation amplitude of the longitudinal template 62 is smaller than that of the longitudinal template 62 of the rear U-shaped half-mold 6.

[0035] Among them, the "first" and "second" in this embodiment are only for distinction and have no other special meaning.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. It should be noted that there is an unclear term "撑开组件63" in the original text, which may need to be further clarified according to the actual situation for more accurate translation.

Claims

1. A forming mold for a precast concrete component, comprising a base (2), an inner mold (1) and an outer mold (3), wherein the base (2), the inner mold (1) and the outer mold (3) are all of a U-shaped structure and are arranged in a front-to-back direction, the bottoms of the inner mold (1) and the outer mold (3) are respectively located on the inner and outer sides of the base (2), the base (2), the inner mold (1) and the outer mold (3) enclose a precast cavity, and a first quick-release fixing member (4) is provided between the tops of the four sides of the inner mold (1) and the tops of the corresponding sides of the outer mold (3); characterized in that: A plurality of support beams (5) are evenly distributed inside the base (2). The support beams (5) are horizontally arranged. The inner mold (1) is placed on the support beams (5) and its outer side abuts against the inner side of the base (2). The inner mold (1) is formed by splicing two U-shaped half molds (6) front and back. The two U-shaped half molds (6) are arranged oppositely, and splicing inclined surfaces (7) that cooperate with each other are provided on the two adjacent sides. A positioning structure (8) is provided between the two adjacent splicing inclined surfaces (7). Second quick-release fixing members (9) are provided between the bottoms of the three sides of each U-shaped half mold (6) and the corresponding sides of the base (2). The U-shaped half mold (6) includes a transverse template (61), a spreading component (63), and two longitudinal templates (62). The transverse template (61) and the spreading component (63) are both arranged along the left-right direction, and the longitudinal templates (62) are arranged along the front-back direction. The transverse template (61) is located between the front ends or the rear ends of the two longitudinal templates (62), and it is flexibly connected to the longitudinal templates (62) so that the ends of the two longitudinal templates (62) away from the transverse template (61) can approach each other. Splicing inclined surfaces (7) are provided at the other ends of the longitudinal templates (62), and the splicing inclined surfaces (7) are inclined forward or backward from inside to outside. The left and right ends of the spreading component (63) are respectively arranged on the inner sides of the two longitudinal templates (62), its length is adjustable, and it is arranged away from the transverse template (61).

2. The forming mold for precast concrete components according to claim 1, wherein The bottoms of the transverse template (61) and the longitudinal templates (62) are placed on the corresponding support beams (5). The transverse template (61) is located inside the front or rear of the base (2), and the longitudinal templates (62) are located inside the left or right of the base (2). For the front U-shaped half mold (6), the transverse template (61) is located between the front ends of the two longitudinal templates (62), the spreading component (63) is arranged between the rear parts of the two longitudinal templates (62), and the rear ends of the two longitudinal templates (62) are both splicing inclined surfaces (7). For the rear U-shaped half mold (6), the transverse template (61) is located between the rear ends of the two longitudinal templates (62), the spreading component (63) is arranged between the front parts of the two longitudinal templates (62), and the front ends of the two longitudinal templates (62) are both splicing inclined surfaces (7).

3. The forming mold for precast concrete components according to claim 2, characterized in that: The included angle between the splicing inclined surface (7) and the corresponding longitudinal template (62) is 45°.

4. The forming mold for precast concrete components according to claim 2, characterized in that: The outer side of one end of the longitudinal template (62) and the outer side of the corresponding end of the transverse template (61) are flexibly connected by a thin steel plate (64), and mutually cooperating avoiding inclined surfaces (65) are provided at the connection. The other end of the longitudinal template (62) can rotate, the avoiding inclined surfaces (65) are located inside the thin steel plate (64), and the distance between the two avoiding inclined surfaces (65) at the connection gradually increases from outside to inside to form a gap.

5. The forming mold for precast concrete components according to claim 4, characterized in that: The positioning structure (8) comprises a plurality of insertion holes arranged side by side in the upper and lower parts and a latch pin arranged side by side in the upper and lower parts and cooperating with the insertion holes, wherein the latch pin and the insertion holes are respectively arranged on two connected splicing inclined surfaces (7); the latch pin is arranged on the inner splicing inclined surface (7) and is inserted into the corresponding insertion hole; when the longitudinal template (62) rotates inwardly, the latch pin can be separated from the insertion hole.

6. The forming mold for precast concrete components according to claim 1, characterized in that: The support beam (5) is a square steel, which is perpendicular to the corresponding side of the base (2), with its outer end fixed on the base (2) and its inner end extending inward relative to the corresponding side of the inner mold (1).

7. The forming mold for precast concrete components according to claim 1, characterized in that: The spreading assembly (63) is located between the second quick-release fixing member (9) and the first quick-release fixing member (4) and comprises a connecting sleeve and two connecting screws; the two connecting screws are respectively arranged on the inner sides of the two longitudinal templates (62), and are arranged in the left-right direction. They are rotatably arranged on the longitudinal templates (62) through a front-back rotating shaft; the connecting sleeve is arranged in the left-right direction and its two ends are respectively threadedly connected to the two connecting screws; by rotating the connecting sleeve, the two connecting screws move closer to or farther away from each other.

8. The forming mold for precast concrete components according to claim 1, characterized in that: The second quick-release fixing member (9) is arranged vertically, and the first quick-release fixing member (4) is arranged in the front-to-back direction or the left-to-right direction.

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