An in-situ prefabrication mold for a trench cover plate and a method for prefabricating a cover plate using the same

Abstract

The present invention discloses an in-situ prefabrication mold for trench covers and a method for prefabricating covers using the same. The in-situ prefabrication mold for trench covers includes a trench body, a template, and a flipper; an opening is provided on the trench body, and installation grooves are provided on both inner side walls of the opening and the installation grooves are located at the upper end of the opening; the template includes a plate body and steps, and steps are provided at both ends of the plate body. During operation, the lower surfaces of the steps are in contact with the upper surface of the trench body in a one-to-one correspondence, and the two outer side walls of the plate body are in contact with the two inner side walls of the installation grooves in a one-to-one correspondence; the flipper is rotatably connected to the template and the flipper is used to flip the template; through the arrangement of the flipper in this application, the template can be flipped back and forth, so that the trench cover can be quickly and conveniently demolded and the template can be quickly reset at the same time. Furthermore, it is realized that after the trench cover is demolded, the original template can be used for pouring another trench cover, without the need to prepare a centralized prefabrication site, reducing land occupation, site hardening, and corresponding centralized production equipment.

Description

Technical Field

[0001] The present application relates to the technical field of prefabrication of trench covers, and specifically relates to an in-situ prefabrication mold for trench covers, and also relates to a method for prefabricating covers using the in-situ prefabrication mold for trench covers. Background Art

[0002] A trench cover mold is a tool for producing trench covers with specific shapes and sizes. These covers are widely used in fields such as construction, water conservancy, environmental protection, highways, and municipal administration, such as the drainage systems of buildings, cable trenches, water conservancy channels, and grille plates of sewage treatment plants, etc. Trench cover molds are usually made of materials such as steel plates, and have characteristics such as being strong, durable, and corrosion-resistant. However, the current trench cover molds are generally difficult to demold, so a demolding device is required for demolding. The existing demolding devices for trench cover molds mainly include the following several types:

[0003] A manual demolding device usually includes components such as a handle, a lever, and a slide rail. By manually operating the handle or the lever, the cover is pushed out or ejected from the mold using the lever principle. Its operation is simple and the cost is low, but the demolding efficiency is low, and it may be laborious for large or heavy covers.

[0004] A mechanical demolding device includes components such as a motor, a reducer, a transmission mechanism, and a demolding mechanism. The motor drives the transmission mechanism to drive the demolding mechanism to complete the demolding action. It has a high degree of automation and high demolding efficiency, and can handle large or heavy covers, but the cost is relatively high.

[0005] A hydraulic demolding device uses a hydraulic cylinder or a hydraulic motor to generate power, and drives the demolding mechanism to complete the demolding action through a hydraulic transmission system. It has a large demolding force, is stable and reliable, and is suitable for occasions with high requirements for demolding accuracy, but also requires a high cost investment.

[0006] In summary, the method of using a manual demolding device for demolding has a low demolding efficiency and is time-consuming and laborious, and the mechanical demolding device and the hydraulic demolding device have a high cost. There is an urgent need for a trench cover mold that is more convenient for demolding compared to centralized prefabrication. Summary of the Invention

[0007] Therefore, the present application provides an in-situ prefabrication mold for trench covers to solve the problems of difficult demolding and high demolding cost of an existing in-situ prefabrication mold for trench covers.

[0008] To achieve the above object, the present application provides the following technical solutions:

[0009] According to the first aspect of the present application, an in-situ prefabrication mold for trench covers includes a trench body, a template, and a flipper; a notch is provided on the trench body, and installation grooves are provided on both inner side walls of the notch and the installation grooves are located at the upper end of the notch;

[0010] The template includes a plate body and steps. Steps are provided at both ends of the plate body. During operation, the lower surfaces of the steps are in one-to-one abutment with the upper surfaces of the groove bodies, and the two outer side walls of the plate body are in one-to-one abutment with the two inner side walls of the installation grooves.

[0011] The flipper is rotatably connected to the template and is used to flip the template.

[0012] Optionally, the template further includes sliding rods. The flipper includes movable rods and a flipping frame. Sliding grooves are formed on both sides of the flipping frame. The shape of the sliding grooves is arc-shaped. A sliding rod is provided on one side of each step facing away from the plate body. The sliding rod is slidably connected in the sliding groove. One end of each movable rod is rotatably connected to one side of each step facing away from the plate body, and the middle of the movable rod is rotatably connected to one end of the flipping frame.

[0013] Optionally, the template further includes baffles. Two baffles are provided on the upper surface of the plate body and are respectively located at both ends of the plate body.

[0014] Optionally, the template further includes rotating rods. One rotating rod is provided on one side of each step facing away from the plate body. Each movable rod is rotatably connected to the step through a rotating rod.

[0015] Optionally, each movable rod is located in the middle of the corresponding step, and the sliding rod is located between the middle and the end of the step.

[0016] Optionally, the flipping frame includes two first telescopic rods, two second telescopic rods, two cross bars, two telescopic rod sleeves and two vertical rods. The first end of one first telescopic rod is connected to the first end of one cross bar, and the first end of the other first telescopic rod is connected to the first end of the other cross bar. The two ends of one telescopic rod sleeve are respectively sleeved on the second ends of the two first telescopic rods, and both first telescopic rods are telescopic relative to the telescopic rod sleeve;

[0017] The first end of one vertical rod is connected to the second end of one cross bar, and the first end of the other vertical rod is connected to the second end of the other cross bar. The first end of one second telescopic rod is connected to the second end of one vertical rod, and the first end of the other second telescopic rod is connected to the second end of the other vertical rod. The two ends of the other telescopic rod sleeve are respectively sleeved on the second ends of the two second telescopic rods, and both second telescopic rods are telescopic relative to the telescopic rod sleeve;

[0018] The first telescopic rod is perpendicular to the cross bar, the vertical rod is perpendicular to the cross bar, the second telescopic rod is perpendicular to the vertical rod, the second telescopic rod is perpendicular to the cross bar, and the first telescopic rod is parallel to the second telescopic rod.

[0019] Optionally, the flipper further includes a handle fixing rod, which is installed between the two movable rods.

[0020] Optionally, the flipper further includes a handle movable rod, which is sleeved on the handle fixing rod.

[0021] Optionally, demolding air holes are provided on the plate body.

[0022] Compared with the prior art, the first aspect of the present application has at least the following beneficial effects:

[0023] 1. By setting the flipper, the template can be flipped back and forth, so that the trench cover plate can be quickly and conveniently demolded and the template can be quickly reset. Furthermore, after the trench cover plate is demolded, the original template can be used for pouring another trench cover plate, without the need to make large molds and demolding devices, nor to re - make a trench cover plate processing mold, and there is no need to prepare a centralized prefabrication site, reducing the land occupation, site hardening and corresponding centralized production equipment. Thus, the cost of the trench cover plate mold hardening processing area is saved, meeting the requirements of green and low - carbon.

[0024] In addition, the structure of this mold is simple, easy to operate, and has a low cost.

[0025] 2. Through the cooperative setting of the step and the installation groove in the present application, a buffer can be ensured when the trench cover plate is demolded, avoiding the dislocation of the trench cover plate or the template, which provides convenience for the demolding of the trench cover plate.

[0026] According to the second aspect of the present application, a method for prefabricating a cover plate using the in - situ prefabrication mold for trench cover plates is provided. Using the in - situ prefabrication mold for trench cover plates as described in the first aspect of the present application, in addition, the following steps are included:

[0027] Step S100: Make the template, determine the position of the template, and lay the template on the trench;

[0028] Step S200: Pour concrete, lay steel bars, and use a contact vibrator to vibrate the concrete evenly to make the trench cover plate;

[0029] Step S300: After the concrete reaches the demolding strength, operate the flipper to flip the made trench cover plates in sequence;

[0030] Step S400: Use a high - pressure air gun to blow high - pressure air through the demolding air holes to separate the template from the trench body, achieving demolding. At the same time, use the baffle to complete positioning and buffering;

[0031] Step S500: The demolding of the trench cover plate is completed;

[0032] Step S600: Use the flipper to reset the template and make another trench cover plate, and so on.

[0033] Compared with the prior art, the second aspect of the present application has at least the following beneficial effects:

[0034] 1. By the above method, the present application enables the grooved cover plate to be poured with another grooved cover plate using the original template after demolding, without the need to make large molds and demolding devices, nor to re-manufacture a grooved cover plate processing mold, thereby saving the cost of the hardened processing area of the grooved cover plate mold and meeting the requirements of green and low-carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings generally should not be regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making routine adjustments or further optimizations to the addition / removal / attribution division of certain unit components, specific shapes, positional relationships, connection methods, dimensional proportional relationships, etc. based on the technical concept disclosed in the present application and the exemplary drawings.

[0036] Figure 1 The first view of the structural schematic diagram of an in-situ prefabrication mold for a grooved cover plate provided in an embodiment of the present application;

[0037] Figure 2 The second view of the structural schematic diagram of an in-situ prefabrication mold for a grooved cover plate provided in an embodiment of the present application;

[0038] Figure 3 The connection structure diagram of the flipper and the template of an in-situ prefabrication mold for a grooved cover plate provided in an embodiment of the present application;

[0039] Figure 4 The structural diagram of the flipper of an in-situ prefabrication mold for a grooved cover plate provided in an embodiment of the present application;

[0040] Figure 5 The structural diagram of the template of an in-situ prefabrication mold for a grooved cover plate provided in an embodiment of the present application;

[0041] Figure 6 The partial structural diagram of the flipper of an in-situ prefabrication mold for a grooved cover plate provided in an embodiment of the present application;

[0042] Figure 7 The structural diagram of the clamping plate of an in-situ prefabrication mold for a grooved cover plate provided in an embodiment of the present application;

[0043] Figure 8 The structural diagram of the movable rod of an in-situ prefabrication mold for a grooved cover plate provided in an embodiment of the present application;

[0044] Figure 9The movement locus diagram of the reciprocating flipping of the template driven by the flipper of an in-situ prefabrication mold for a trench cover plate provided by an embodiment of the present application;

[0045] Explanation of reference numerals:

[0046] 1. Trench body;

[0047] 2. Groove opening;

[0048] 3. Installation groove;

[0049] 4. Template; 41. Plate body; 42. Step; 43. Rotating rod; 44. Sliding rod; 45. Baffle; 47. Demolding air hole;

[0050] 5. Flipper; 51. First telescopic rod; 511. Clamping tooth; 52. Movable rod; 521. First rod body; 522. Second rod body; 523. First hole; 524. Second hole; 53. Second telescopic rod; 54. Handle fixing rod; 55. Handle movable rod; 56. Cross bar; 57. Sliding groove; 58. Telescopic rod sleeve; 581. Clamping plate; 5811. Clamping plate body; 5812. Clamping block; 582. Sleeve rod body; 59. Vertical rod. Detailed implementation manners

[0051] The following further details the present application through specific embodiments in conjunction with the accompanying drawings.

[0052] In the description of the present application: Unless otherwise specified, "a plurality of" means two or more. Terms such as "first", "second", "third", etc. in the present application are intended to distinguish the objects being referred to, and do not have special significance in terms of technical connotations. For example, it should not be understood as emphasizing the importance or order, etc. Expressions such as "including", "comprising", "having", etc. also mean "not limited to" certain units, components, materials, steps, etc.

[0053] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in the present application are usually indications of the general relative position relationship for the convenience of intuitively understanding with reference to the accompanying drawings, and are not absolute limitations on the position relationship in the actual product.

[0054] An embodiment of the first aspect of the present application, an in-situ prefabrication mold for a trench cover plate, as Figures 1-8 shown, includes a trench body 1, a template 4, and a flipper 5; a groove opening 2 is provided on the trench body 1, and installation grooves 3 are provided on both inner side walls of the groove opening 2 and the installation grooves 3 are located at the upper end of the groove opening 2;

[0055] The template 4 includes a plate body 41 and steps 42. Steps 42 are provided at both ends of the plate body 41. During operation, the lower surfaces of the steps 42 are in contact with the upper surface of the groove body 1 in a one-to-one correspondence, and the two outer side walls of the plate body 41 are in contact with the two inner side walls of the installation groove 3 in a one-to-one correspondence;

[0056] The flipper 5 is rotatably connected to the template 4 and the flipper 5 is used to flip the template 4.

[0057] The technical effect of the above embodiment is that by setting the flipper 5, the template 4 can be flipped back and forth, so that the trench cover plate can be quickly and conveniently demolded and the template 4 can be quickly reset. Furthermore, after the trench cover plate is demolded, the original template 4 can be used for pouring another trench cover plate, without the need to make a large mold and demolding device, nor to re-manufacture a trench cover plate processing mold, thus saving the cost of the hardening processing area of the trench cover plate mold and meeting the requirements of green and low-carbon.

[0058] In addition, the structure of this mold is simple, easy to operate and has a low cost.

[0059] Through the cooperative setting of the steps 42 and the installation groove 3, it can ensure a buffering limit when the trench cover plate is demolded and can achieve a load-bearing effect, avoiding dislocation of the trench cover plate or the template, and facilitating the demolding of the trench cover plate.

[0060] Preferably, as Figures 3-8 shown, the template 4 further includes sliding rods 44. The flipper 5 includes movable rods 52 and a flipping frame. Sliding grooves 57 are provided on both sides of the flipping frame. The shape of the sliding grooves 57 is arc-shaped. A sliding rod 44 is provided on the side of each step 42 away from the plate body 41. The sliding rod 44 is slidably connected in the sliding groove 57. One end of each movable rod 52 is rotatably connected to the side of each step 42 away from the plate body 41. The middle of the movable rod 52 is rotatably connected to one end of the flipping frame.

[0061] The template 4 further includes baffles 45. Two baffles 45 are provided on the upper surface of the plate body 41 and the two baffles 45 are respectively located at both ends of the plate body 41.

[0062] Through the setting of the baffles 45, buffering limit can be realized when the template 4 is demolded.

[0063] The template 4 further includes rotating rods 43. One rotating rod 43 is provided on the side of each step 42 away from the plate body 41. Each movable rod 52 is rotatably connected to the step 42 through a rotating rod 43.

[0064] Each movable rod 52 is located in the middle of the corresponding step 42, and the sliding rod 44 is located between the middle and the end of the step 42.

[0065] The flipper 5 further includes a handle fixing rod 54, and the handle fixing rod 54 is installed between the two movable rods 52.

[0066] Specifically, the flipping frame includes two first telescopic rods 51, two second telescopic rods 53, two cross bars 56, two telescopic rod sleeves 58 and two vertical rods 59. The first end of one of the first telescopic rods 51 is connected to the first end of one of the cross bars 56 by means of bolt connection, welding, clamping, bonding or the like. The first end of the other first telescopic rod 51 is connected to the first end of the other cross bar 56 by means of bolt connection, welding, clamping, bonding or the like. The two ends of one of the telescopic rod sleeves 58 are respectively sleeved on the second ends of the two first telescopic rods 51, and the two first telescopic rods 51 are both telescopic relative to the telescopic rod sleeve 58;

[0067] The first end of one of the vertical rods 59 is connected to the second end of one of the cross bars 56 by means of bolt connection, welding, clamping, bonding or the like. The first end of the other vertical rod 59 is connected to the second end of the other cross bar 56 by means of bolt connection, welding, clamping, bonding or the like. The first end of one of the second telescopic rods 53 is connected to the second end of one of the vertical rods 59 by means of bolt connection, welding, clamping, bonding or the like. The first end of the other second telescopic rod 53 is connected to the second end of the other vertical rod 59 by means of bolt connection, welding, clamping, bonding or the like. The two ends of the other telescopic rod sleeve 58 are respectively sleeved on the second ends of the two second telescopic rods 53, and the two second telescopic rods 53 are both telescopic relative to the telescopic rod sleeve 58;

[0068] The first telescopic rod 51 and the cross bar 56 are perpendicular to each other. The vertical rod 59 and the cross bar 56 are perpendicular to each other. The second telescopic rod 53 and the vertical rod 59 are perpendicular to each other. The second telescopic rod 53 and the cross bar 56 are perpendicular to each other. The first telescopic rod 51 and the second telescopic rod 53 are parallel to each other.

[0069] Arc-shaped sliding grooves 57 are respectively formed in the middle parts of the two cross bars 56, and the two sliding rods 44 are slidably connected to the sliding grooves 57 in a one-to-one correspondence;

[0070] The length of the rotating rod 43 is greater than the length of the sliding rod 44; the relative positions of the rotating rod 43 and the sliding rod 44 with respect to the step 42 always remain the same.

[0071] More specifically, a clamping tooth 511 is provided on the upper surface of the end of each first telescopic rod 51 facing away from the corresponding cross bar 56;

[0072] Each telescopic rod sleeve 58 includes a clamping plate 581 and a sleeve rod body 582. The clamping plate 581 is connected to the sleeve rod body 582 in a clamping manner. The first telescopic rod 51 and the second telescopic rod 53 are telescopically inserted into the corresponding sleeve rod bodies 582. The first telescopic rod 51 is telescopically clamped to the corresponding clamping plate 581 through the clamping teeth 511.

[0073] The clamping plate 581 includes a clamping plate body 5811 and clamping blocks 5812. The two ends of the clamping plate body 5811 are connected with the clamping blocks 5812 by means of bolt connection or clamping. The clamping blocks 5812 are clamped with the corresponding clamping teeth 511. The clamping plate body 5811 is installed on the sleeve rod body 582 by means of clamping.

[0074] The movable rod 52 includes a first rod body 521 and a second rod body 522. The first rod body 521 and the second rod body 522 are connected to each other. The angle between the first rod body 521 and the second rod body 522 is an obtuse angle. A first hole 523 is provided at the connection between the first rod body 521 and the second rod body 522. A rotating shaft is provided on the side wall of each vertical rod 59. The rotating shaft is rotatably inserted into the first hole 523.

[0075] A second hole 524 is provided at the end of each first rod body 521 away from the second rod body 522. The two sliding rods 44 are inserted into the second holes 524 in a one-to-one correspondence. The height of the rotating shaft is higher than the height of the sliding rods 44.

[0076] Through the obtuse angle between the first rod body 521 and the second rod body 522, a rotating shaft is provided on the side wall of each vertical rod 59, the rotating shaft is rotatably inserted into the first hole 523, a second hole 524 is provided at the end of each first rod body 521 away from the second rod body 522, the two sliding rods 44 are inserted into the second holes 524 in a one-to-one correspondence, the height of the rotating shaft is higher than the height of the sliding rods 44, and each movable rod 52 is located in the middle of the corresponding step 42. The cooperation setting between the middle of the step 42 and the end of the step 42 of the sliding rod 44 forms a lever structure when the flipper 5 cooperates with the template 4, realizing that the flipper 5 drives the template 4 to flip along a set route.

[0077] Preferably, as Figure 3 、 Figure 4 and Figure 6 shown, the flipper 5 further includes a handle movable rod 55. The handle movable rod 55 is sleeved on the handle fixed rod 54.

[0078] Preferably, as Figure 5 shown, a demolding air hole 47 is provided on the plate body 41.

[0079] When the above-mentioned embodiment is in use and demolding is required, first, a vibrator is used to vibrate the template 4 so that the trench cover plate becomes loose relative to the template 4. Then, by pressing the handle movable rod 55, the handle fixed rod 54 is driven to move, which drives the rotation of the second rod body 522 and then drives the rotation of the first rod body 521. Due to the cooperation and limitation of the sliding groove 57 and the sliding rod 44, the rotation of the first rod body 521 drives the template 4 to flip. When the sliding rod 44 reaches the midpoint position of the sliding groove 57, due to inertia, the template 4 continues to flip until the template 4 flips 180 degrees, and the demolding of the trench cover plate is completed. Then, by pressing the handle movable rod 55 again, the reset of the template 4 can be achieved; for the specific reciprocating motion path, see Figure 9 。

[0080] The convenience of demolding the trench cover plate can be increased by setting the demolding air holes 47.

[0081] In an embodiment of the second aspect of the present application, a method for prefabricating a cover plate using the in-situ prefabrication mold for a trench cover plate. Using the in-situ prefabrication mold for a trench cover plate in the embodiment of the first aspect of the present application, in addition, the following steps are included:

[0082] Step S100: Fabricate the template 4, determine the position of the template 4, and lay the template 4 on the trench;

[0083] Step S200: Pour concrete and lay steel bars, and use a surface vibrator to vibrate the concrete evenly to fabricate the trench cover plate;

[0084] Step S300: After the concrete reaches the demolding strength, operate the flipper to flip the fabricated trench cover plates in sequence;

[0085] Step S400: Use a high-pressure air gun to blow high-pressure air through the demolding air holes 47 to the template 4 to separate the template 4 from the trench body 1 to achieve demolding, and at the same time use the baffle 45 to complete positioning and buffering;

[0086] Step S500: The demolding of the trench cover plate is completed;

[0087] Step S600: Use the flipper to reset the template and fabricate other trench cover plates, and so on.

[0088] In the above-mentioned embodiment, it should be noted that the material and processing method of the template 4 are not overly limited, as long as they meet the actual production requirements.

[0089] Through the above method of prefabricated covers using the in-situ prefabrication mold for trench covers, it is realized that after the trench covers are demolded, the original templates can be used for pouring other trench covers. There is no need to make large molds and demolding devices, nor to re-manufacture a trench cover processing mold. Moreover, it occupies less land, eliminates the need to prepare a centralized prefabrication site, reduces land occupation, site hardening, and corresponding centralized production equipment. Templates 4, flippers, etc. can all operate in a cyclic manner in multiple groups and can be matched according to the production batches and the construction progress of the trenches. Thus, the cost of the hardened processing area for trench cover molds is saved, meeting the requirements of green and low-carbon.

[0090] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written out should also be considered to be within the scope described in this specification.

Claims

1. An in-situ prefabrication mold for a trench cover plate, characterized in that, It includes a groove body (1), a template (4), and a flipper (5); a notch (2) is formed on the groove body (1), and mounting grooves (3) are formed on both inner side walls of the notch (2), and the mounting grooves (3) are located at the upper end of the notch (2). The template (4) includes a plate body (41) and steps (42). Steps (42) are provided at both ends of the plate body (41). During operation, the lower surfaces of the steps (42) are in contact with the upper surface of the groove body (1) in a one-to-one correspondence, and the two outer side walls of the plate body (41) are in contact with the two inner side walls of the mounting groove (3) in a one-to-one correspondence. The flipper (5) is rotatably connected to the template (4), and the flipper (5) is used to flip the template (4). The template (4) further includes sliding rods (44). The flipper (5) includes movable rods (52) and a flipping frame. Arc-shaped sliding grooves (57) are formed on both sides of the flipping frame. The shape of the sliding groove (57) is arc-shaped. A sliding rod (44) is provided on one side of each step (42) facing away from the plate body (41), and the sliding rod (44) is slidably connected in the sliding groove (57). One end of a movable rod (52) is rotatably connected to one side of each step (42) facing away from the plate body (41), and the middle of the movable rod (52) is rotatably connected to one end of the flipping frame. The template (4) further includes rotating rods (43). A rotating rod (43) is provided on one side of each step (42) facing away from the plate body (41), and each movable rod (52) is rotatably connected to the step (42) through a rotating rod (43). Each movable rod (52) is located in the middle of the corresponding step (42), and the sliding rod (44) is located between the middle and the end of the step (42). The flipping frame includes two cross bars (56) and two vertical bars (59). The first end of one vertical bar (59) is connected to the second end of one cross bar (56), and the first end of the other vertical bar (59) is connected to the second end of the other cross bar (56). The vertical bar (59) and the cross bar (56) are perpendicular to each other. The flipper (5) further includes a handle fixing rod (54), and the handle fixing rod (54) is installed between the two movable rods (52). Arc-shaped sliding grooves (57) are formed in the middle of the two cross bars (56), and the two sliding rods (44) are slidably connected to the sliding grooves (57) in a one-to-one correspondence. The length of the rotating rod (43) is greater than the length of the sliding rod (44); the relative positions of the rotating rod (43) and the sliding rod (44) with respect to the step (42) always remain the same. The movable rod (52) includes a first rod body (521) and a second rod body (522). The first rod body (521) is connected to the second rod body (522). The angle between the first rod body (521) and the second rod body (522) is an obtuse angle. A first hole (523) is formed at the connection between the first rod body (521) and the second rod body (522). A rotating shaft is provided on the side wall of each vertical rod (59), and the rotating shaft is rotatably inserted into the first hole (523). A second hole (524) is formed at the end of each first rod body (521) facing away from the second rod body (522). The two sliding rods (44) are correspondingly inserted into the second holes (524). The height of the rotating shaft is higher than the height of the sliding rod (44). The flipper (5) can be flipped and can bear the weight of the cover plate so as not to cause tipping over.

2. The in-situ prefabrication mold for a trench cover plate according to claim 1, wherein, The flipping frame further includes two second telescopic rods (53) and two telescopic rod sleeves (58). The first end of one of the second telescopic rods (53) is connected to the second end of one of the vertical rods (59). The first end of the other second telescopic rod (53) is connected to the second end of the other vertical rod (59). The two ends of the other telescopic rod sleeve (58) are respectively sleeved on the second ends of the two second telescopic rods (53), and the two second telescopic rods (53) are both telescopic relative to the telescopic rod sleeve (58). The second telescopic rod (53) is perpendicular to the vertical rod (59), and the second telescopic rod (53) is perpendicular to the cross bar (56).

3. The in-situ prefabrication mold for a trench cover plate according to claim 2, characterized in that, The flipping frame further includes two first telescopic rods (51). The first end of one of the first telescopic rods (51) is connected to the first end of one of the cross bars (56). The first end of the other first telescopic rod (51) is connected to the first end of the other cross bar (56). The two ends of one of the telescopic rod sleeves (58) are respectively sleeved on the second ends of the two first telescopic rods (51), and the two first telescopic rods (51) are both telescopic relative to the telescopic rod sleeve (58). The first telescopic rod (51) is perpendicular to the cross bar (56), and the first telescopic rod (51) is parallel to the second telescopic rod (53).

4. The in-situ prefabrication mold for a trench cover plate according to claim 1, characterized in that, The template (4) further includes a baffle (45). Two baffles (45) are provided on the upper surface of the plate body (41), and the two baffles (45) are respectively located at both ends of the plate body (41).

5. A in-situ prefabrication mold for a trench cover plate according to claim 1, characterized in that, The flipper (5) further includes a handle movable rod (55), and the handle movable rod (55) is sleeved on the handle fixed rod (54).

6. The in-situ prefabrication mold for a trench cover plate according to claim 1, characterized in that, Demolding air holes (47) are formed in the plate body (41).

7. A method for prefabricating a cover plate using an in-situ prefabrication mold for a trench cover plate, characterized in that, Using the in-situ prefabrication mold for the trench cover plate according to any one of claims 1 to 6, in addition, the following steps are further included: Step S100: Manufacture the template (4), determine the position of the template (4), and lay the template (4) on the trench. Step S200: Pour concrete, lay steel bars, and use a surface vibrator to vibrate the concrete evenly to fabricate the trench cover plate; Step S300: After the concrete reaches the form removal strength, operate the flipper to successively flip the fabricated trench cover plates; Step S400: Use a high-pressure air gun to blow high-pressure air through the demolding air holes (47) to the formwork (4) to separate the formwork (4) from the trench body (1) to achieve demolding, and at the same time use the baffle plate (45) to complete positioning and buffering; Step S500: The demolding of the trench cover plate is completed; Step S600: Use the flipper to reset the formwork and fabricate other trench cover plates, and so on.

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