Demoulding method of prefabricated mould of buried pipeline concrete encapsulation component

Abstract

The invention discloses a demolding method of a prefabricated mold of a buried pipeline concrete encapsulating component. The prefabricated mold comprises a bottom mold plate, two side edge mold plates, two end mold plates, two hanging rods, two pairs of mold plate locking mechanisms and two pairs of mold plate opening limiting mechanisms. A mortise template is fixed on the top surface of one end of the bottom template; the two side edge formworks are hinged to the top faces of the edges of the two sides of the bottom formwork respectively. The two end formworks are hinged to the top faces of the edges of the two ends of the bottom formwork respectively, and a tenon formwork is fixed to the inner surface of one end formwork. The two hanging rods are respectively mounted in the centers of the outer surfaces of the two end templates; the two pairs of formwork locking mechanisms are installed between the tops of the outer surfaces of the two ends of the two side edge formworks and the tops of the end faces of the two sides of the two end formworks in a one-to-one correspondence mode. The two pairs of formwork opening limiting mechanisms are installed between the middles of the outer surfaces of the two ends of the two side edge formworks and the middles of the end faces of the two sides of the two end formworks in a one-to-one correspondence mode. According to the invention, rapid demolding can be realized.

Description

Technical Field

[0001] The invention relates to a demoulding method of a prefabricated mould for a buried pipeline concrete encapsulation component. Background Art

[0002] The prefabricated concrete encapsulation components of the buried pipeline are connected by mortise and tenon joints, with one end of each encapsulation component being a tenon and the other end being a mortise. At present, bolt fasteners are used to connect the two end templates and the two side templates in the prefabricated mold of the prefabricated concrete encapsulation component, as well as between the two end templates and the two side templates and the bottom template. Mortise templates and tenon templates are also provided on the inner surfaces of the two end templates in a one-to-one correspondence, so the end templates must be removed when demolding. When demolding the current prefabricated mold, workers mainly rely on hammers, crowbars and other tools to knock or pry the prefabricated mold to separate the concrete encapsulation component from the prefabricated mold. This manual demolding method is not only time-consuming and labor-intensive, but also difficult to meet the needs of large-scale production, and it is difficult to ensure the consistency of demolding. At the same time, the surface of the newly formed component is easily scratched during the manual demolding process, such as surface cracks, broken corners, etc., which affects the appearance quality and structural performance of the component. In addition, frequent manual demolding also accelerates the wear of the prefabricated mold and increases the maintenance and replacement costs of the prefabricated mold. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a demoulding method for a prefabricated mold of a buried pipe concrete encapsulation component, which can not only accurately control the size of the concrete encapsulation component, but also quickly separate the concrete encapsulation component from the mold to meet the needs of large-scale production.

[0004] A technical solution to achieve the purpose of the present invention is: a demoulding method of a prefabricated mold for a buried pipeline concrete encapsulation component, based on the prefabricated mold for the buried pipeline concrete encapsulation component, the prefabricated mold includes a bottom mold, two side molds, two end molds, two suspension rods, two pairs of mold locking mechanisms and two pairs of mold opening limit mechanisms; wherein,

[0005] A mortise template for forming the mortise of the encapsulating component is fixed on the top surface of one end of the bottom template;

[0006] Two side templates are hinged to the top surfaces of the two side edges of the bottom template in a one-to-one correspondence;

[0007] Two end templates are hinged to the top surfaces of the two end edges of the bottom template one by one, and the two end templates together with the two side templates constitute the side template of the prefabricated mold in the form of hemming; a tenon template corresponding to the mortise template and used for forming the tenon of the encapsulated component is fixed on the inner surface of an end template away from the mortise template on the bottom template;

[0008] Two suspension rods are installed one by one at the center of the outer surfaces of the two end templates;

[0009] Two pairs of template locking mechanisms are installed one by one between the top of the outer surfaces of the two ends of the two side templates and the top of the two side end surfaces of the two end templates; each template locking mechanism includes a locking hook and an opening and closing execution component; the locking hook is fixed to the side end surface of the end template; the opening and closing execution component includes a hinged rod, a connecting rod, a locking piece, an operating handle, a lock, a movable rod and a lock spring; the inner end of the hinged rod is fixed to the top of the outer surface of the side template; the inner end of the connecting rod is hinged to the outer end of the hinged rod; the locking piece is a closed U-shaped piece bent from a long and narrow iron plate, and the rear closed part of the locking piece connects the outer end of the connecting rod and the operating handle The rear end of the longitudinal handle is clamped and hinged together, a through hole is provided in the center of the front end plate of the locking piece, and a long slot hole is provided in the middle of the upper arm and the middle of the lower arm of the locking piece respectively along the length direction; the lock buckle is a long waist-shaped ring and the front end is sleeved on the lock hook; the movable rod is inserted into the locking piece from the through hole of the locking piece, and the front end of the movable rod is connected to the center of the rear end surface of the lock buckle, and a spring pressure plate is fixed to the rear end of the movable rod, and the middle part of the top surface and the middle part of the bottom surface of the spring pressure plate are provided with flanges inserted into the two long slot holes of the locking piece one by one; the lock buckle spring is installed on the movable rod and is located between the front end plate of the locking piece and the spring pressure plate;

[0010] Two pairs of template opening limit mechanisms are installed one by one between the middle of the outer surfaces of the two ends of the two side templates and the middle of the two side end surfaces of the two end templates; each template opening limit mechanism includes an opening limit plate and a limit bolt; the opening limit plate is fixed on the side end surface of the end template and inclined toward the outer and lower direction of the side template, and a long waist-shaped limit hole is provided on the opening limit plate; the limit bolt is inserted into the limit hole of the opening limit plate and then vertically installed on the end outer surface of the side template.

[0011] The demoulding method comprises the following steps:

[0012] Step 1: First, two side templates and two end templates are respectively connected to the bottom template in a vertical direction through a pair of hinges, and then the two end templates are locked with the two side templates through two pairs of template opening limit mechanisms, so that the two side templates and the two end templates and the bottom template together form a mold cavity, and the pouring port of the prefabricated mold is facing upward, and then concrete is poured into the mold cavity;

[0013] Step 2: After the concrete in the mold cavity reaches the final setting strength, the hook of the lifting equipment is reliably connected to the two hanging rods;

[0014] Step 3: Start the hoisting equipment to lift the precast mold and the concrete encapsulation component in the precast mold to a height of 0.5 to 1.0 meters above the ground, and then pause. The operator manually turns over the bottom template of the precast mold, that is, rotates the precast mold 180 degrees around the two hanging rods, so that the pouring port of the precast mold faces downward.

[0015] Step 4: The operator first grasps the operating lever in the opening and closing actuator assembly and pulls it outward and toward the corresponding lock hook, so that the hinged end of the operating lever and the locking member moves outward toward the corresponding lock hook, until the angle between the connecting rod and the hinged rod changes from 90° to greater than 180°, so that the locking member moves toward the corresponding lock hook and approaches the lock hook, and the movable rod in the locking member moves relatively away from the corresponding lock hook until the flange on the spring pressure plate moves to the rear end of the long slot hole of the locking member, at which time the front end of the lock buckle exceeds the front end of the lock hook, and the operator grasps the front part of the locking member and pulls it outward, so that the lock buckle is disengaged from the lock hook through the movable rod;

[0016] Step 5. After releasing the connection between the lock buckle and the lock hook, the concrete encapsulation component in the precast mold moves downward under the action of its own weight, pushing the two side templates and the two end templates to expand outward around a pair of hinges respectively. During the expansion process, the limit bolts slide in the limit holes of the opening limit plates to control the opening angles of the two side templates and the two end templates. The concrete encapsulation component falls off smoothly vertically downward from the four-sided pyramid demoulding channel formed by the bottom template and the two expanded side templates and the two end templates.

[0017] In the demoulding method of the prefabricated mold of the buried pipe concrete encapsulation component, a dovetail tenon is respectively provided on the end faces of both ends of the side template; and a dovetail tenon groove adapted to the dovetail tenon is respectively provided on the inner surfaces of both sides of the end template.

[0018] In the demoulding method of the prefabricated mold of the buried pipeline concrete encapsulation component, a plurality of stiffening plates are arranged between the outer surface of the hanger rod and the outer surface of the end template.

[0019] In the demoulding method of the prefabricated mold of the buried pipeline concrete encapsulation component, the template locking mechanism also includes a support block fixed to the outer surface of the side template for the rear closed part of the locking member to abut against.

[0020] The demoulding method of the prefabricated mold of the buried pipeline concrete encapsulation component of the present invention is characterized by:

[0021] 1. The mold cavity is composed of a bottom template, two side templates and two end templates, which can be adjusted and optimized according to the size and shape of different encapsulation components to meet the production needs of various encapsulation components, and the size of the concrete encapsulation components can be accurately controlled;

[0022] 2. The demoulding mechanism of "gravity drive plus limit control" is adopted to realize the rapid demoulding of the encapsulated components, greatly shorten the demoulding time, improve production efficiency, and meet the needs of large-scale production;

[0023] 3. Use precise demoulding method during demoulding to ensure that the encapsulated components are not damaged during demoulding, effectively avoid problems such as surface cracks and corner damage of the encapsulated components, and improve the quality of the encapsulated components and subsequent use effects;

[0024] 4. Through the manual and mechanized demoulding method, manual participation is significantly reduced. Workers only need to lift the rotating mold, rotate the operating handle of the template locking mechanism, and unlock the lock and hook of the template locking mechanism to complete the demoulding process without heavy physical labor. It not only reduces the labor intensity of workers, but also improves work comfort and safety, and reduces fatigue and misoperation risks caused by long-term repetitive labor.

[0025] 5. The present invention improves demoulding efficiency and component quality, reduces cost increases due to component damage and rework, and at the same time, the mechanized demoulding method also reduces labor costs and equipment maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an isometric view of one side of a prefabricated mold of a buried pipeline concrete encapsulation component of the present invention;

[0027] Figure 2 is an isometric view of the other side of the prefabricated mold of the present invention;

[0028] Figure 3 is a side view of the prefabricated mold of the present invention;

[0029] Figure 4 is a front view of the prefabricated mold of the present invention;

[0030] Figure 5 is a top view of the prefabricated mold of the present invention;

[0031] Figure 6 is an isometric view of a template locking mechanism in a prefabricated mold of the present invention when it is closed;

[0032] Figure 7 is an isometric view of the template locking mechanism in the prefabricated mold of the present invention when it is opened;

[0033] Figure 8 It is an isometric view of the prefabricated mold of the present invention when it is opened. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] See also Figures 1 to 8 The demoulding method of the prefabricated mold of the buried pipe concrete encapsulation component of the present invention is based on the prefabricated mold of the buried pipe concrete encapsulation component, which includes a bottom mold 1, two side molds 2, two end molds 3, two suspension rods 4, two pairs of mold locking mechanisms and two pairs of mold opening limit mechanisms.

[0036] The top surface of the bottom template 1 is provided with a semi-cylindrical tube cavity template for forming the tube cavity of the encapsulating component, and a mortise template 11 for forming the mortise of the encapsulating component is fixed on the top surface of one end of the bottom template;

[0037] Each side template 2 has a dovetail tenon on both end surfaces; the two side templates 2 are hinged to the top surfaces of the two side edges of the bottom template 1 by a pair of hinges 10, one by one;

[0038] Each end template 3 has dovetail mortise grooves adapted to the dovetail tenon on its two side inner surfaces; the two end templates 3 are respectively hinged to the top surfaces of the two end edges of the bottom template 1 through a pair of hinges 10, so that the two end templates 3 together with the two side templates 2 constitute the side template of the prefabricated mold in the form of edging, and the side template and the bottom template 1 constitute a mold cavity; a tenon template 12 corresponding to the mortise template 11 and used for forming the tenon of the encapsulated component is fixed on the inner surface of an end template 3 away from the mortise template on the bottom template 1, and the tenon template 12 is door-shaped.

[0039] Two suspension rods 4 are installed in a one-to-one correspondence at the center of the outer surfaces of the two end templates 4; a plurality of stiffening plates 40 are arranged between the outer surface of each suspension rod 4 and the outer surface of the three end templates.

[0040] Two pairs of template locking mechanisms are installed one by one between the top of the outer surfaces of the two ends of the two side templates 2 and the top of the two side end surfaces of the two end templates 3; each template locking mechanism includes a locking hook 50 and an opening and closing actuator 5; the locking hook 50 is fixed to the top of the side end surface of the end template 3;

[0041] The opening and closing actuator 5 includes an articulated rod 51, a connecting rod 52, a locking member 53, an operating handle 54, a lock 55, a movable rod 56, a lock spring 57 and a support block 58; wherein the inner end of the articulated rod 51 is fixed to the top of the outer surface of the side template 2; the inner end of the connecting rod 52 is hinged to the outer end of the articulated rod 51; the locking member 53 is a closed U-shaped member bent from a narrow and long iron plate, the rear closed portion of the locking member 53 clamps the outer end of the connecting rod 52 and the rear end of the operating handle 54 and then hinges them together, a through hole is opened in the center of the front end plate of the locking member 53, and the middle of the upper arm of the locking member 53 is opened. A long slot hole 530 is respectively provided in the middle part of the upper and lower arms along the length direction; the lock buckle 55 is a long waist-shaped ring and the front end is sleeved on the lock hook 50; the movable rod 56 is inserted into the locking member 53 through the through hole of the locking member 53, and the front end of the movable rod 56 is connected to the center of the rear end surface of the lock buckle 55, and a spring pressure plate 560 is fixed to the rear end of the movable rod 56, and the middle part of the top surface and the middle part of the bottom surface of the spring pressure plate 560 are respectively provided with flanges inserted into the two long slot holes 530 of the locking member 53; the lock buckle spring 57 is installed on the movable rod 56 and is located between the front end plate of the locking member 53 and the spring pressure plate 560. When the lock catch 55 is put on the lock hook 50, the operating handle 54 is pulled forward to make the outer end of the connecting rod 52 move backward until the inner end of the connecting rod 52 enters the locking member 53, that is, the angle between the connecting rod 52 and the hinge rod 51 is 90°, and the front end of the lock catch 55 is tightly hooked on the lock hook 50 through the action of the lock catch spring 57; the support block 58 is fixed on the outer surface of the side template 2, and is used for the rear closed part of the locking member 53 to abut.

[0042] Two pairs of template opening limit mechanisms are installed one by one between the middle of the outer surfaces of the two ends of the two side templates 2 and the middle of the two side end surfaces of the two end templates 3; each template opening limit mechanism includes an opening limit plate 61 and a limit bolt 62; wherein, the opening limit plate 61 is fixed on the side end surface of the end template 3 and inclined toward the outer and lower direction of the side template 2, and a long waist-shaped limit hole is provided on the opening limit plate 61; the limit bolt 62 is inserted into the limit hole of the opening limit plate 61 and then vertically installed on the outer surface of the end of the side template 2; the opening angle of the end template 3 is controlled by adjusting the length of the limit bolt 62.

[0043] The demoulding method of the prefabricated mold of the buried pipeline concrete encapsulation component of the present invention comprises the following steps:

[0044] Step 1: First, the two side templates 2 and the two end templates 3 are respectively connected to the bottom template 1 through a pair of hinges 10, and then the two end templates 3 are locked with the two side templates 2 through two pairs of template opening limit mechanisms, so that the two side templates 2 and the two end templates 3 and the bottom template 1 together form a mold cavity, and the pouring port of the precast mold is facing upward, and then concrete is poured into the mold cavity;

[0045] Step 2: After the concrete reaches the final setting strength, the hook of the lifting equipment is reliably connected to the two suspension rods 4 welded one by one to the outer surfaces of the two end templates 3;

[0046] Step 3: Start the hoisting equipment to lift the precast mold and the concrete encapsulation component in the precast mold to a height of 0.5 to 1.0 meters above the ground and then pause. The operator manually flips the bottom template 1 of the precast mold, that is, the precast mold as a whole rotates 180 degrees around the two suspension rods 4, so that the pouring port of the precast mold faces downward; due to the obstruction of the door-shaped tenon template 12, the concrete encapsulation component cannot fall off from the pouring port of the precast mold;

[0047] In step 4, the operator grasps the operating rod 54 in the opening and closing actuator 5 to implement the unlocking operation of the template, that is, the operator first pulls the operating rod 54 outward and toward the corresponding locking hook 50, so that the hinged end of the operating rod 54 and the locking member 53 moves outward and toward the corresponding locking hook 50, until the angle between the connecting rod 52 and the hinged rod 51 changes from 90° to greater than 180°, so that the locking member 53 moves toward the corresponding locking hook 50 and approaches the locking hook 50, and the movable rod 56 in the locking member 53 moves relatively backward until the flange on the spring pressure plate 560 moves to the rear end of the long slot hole 530 of the locking member 53, at which time the front end of the lock buckle 55 exceeds the front end of the lock hook 50, and the operator grasps the front part of the locking member 53 and pulls it outward, and the lock buckle 55 is disengaged from the lock hook 50 through the movable rod 56 (see Figure 7 );

[0048] Step 5: After releasing the locking buckle 55 from the locking hook 50, the concrete encapsulating member in the precast mold moves downward under the action of its own weight, pushing the two side templates 2 and the two end templates 3 to expand outward around a pair of hinges 10 respectively. During the expansion process, the limiting bolts 62 slide in the limiting holes of the opening limiting plates 61 to control the opening angles of the two side templates 2 and the two end templates 3, and the concrete encapsulating member is vertically downward from the four-sided pyramid demoulding channel (see FIG. 1 ) formed by the bottom template 1 and the expanded two side templates 2 and the two end templates 3. Figure 8 ) falls off smoothly.

[0049] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A demoulding method for a prefabricated mold of a buried pipeline concrete encapsulation component, based on the prefabricated mold of the buried pipeline concrete encapsulation component, the prefabricated mold includes a bottom mold, two side molds, two end molds, two suspension rods, two pairs of mold locking mechanisms and two pairs of mold opening limit mechanisms; characterized in that: A mortise template for forming the mortise of the encapsulating component is fixed on the top surface of one end of the bottom template; Two side templates are hinged to the top surfaces of the two side edges of the bottom template in a one-to-one correspondence; Two end templates are hinged to the top surfaces of the two end edges of the bottom template one by one, and the two end templates together with the two side templates constitute the side template of the prefabricated mold in the form of hemming; a tenon template corresponding to the mortise template and used for forming the tenon of the encapsulated component is fixed on the inner surface of an end template away from the mortise template on the bottom template; Two suspension rods are installed one by one at the center of the outer surfaces of the two end templates; Two pairs of template locking mechanisms are installed one by one between the top of the outer surfaces of the two ends of the two side templates and the top of the two side end surfaces of the two end templates; each template locking mechanism includes a locking hook and an opening and closing execution component; the locking hook is fixed to the side end surface of the end template; the opening and closing execution component includes a hinged rod, a connecting rod, a locking piece, an operating handle, a lock, a movable rod and a lock spring; the inner end of the hinged rod is fixed to the top of the outer surface of the side template; the inner end of the connecting rod is hinged to the outer end of the hinged rod; the locking piece is a closed U-shaped piece bent from a long and narrow iron plate, and the rear closed part of the locking piece connects the outer end of the connecting rod and the operating handle The rear end of the longitudinal handle is clamped and hinged together, a through hole is provided in the center of the front end plate of the locking piece, and a long slot hole is provided in the middle of the upper arm and the middle of the lower arm of the locking piece respectively along the length direction; the lock buckle is a long waist-shaped ring and the front end is sleeved on the lock hook; the movable rod is inserted into the locking piece from the through hole of the locking piece, and the front end of the movable rod is connected to the center of the rear end surface of the lock buckle, and a spring pressure plate is fixed to the rear end of the movable rod, and the middle part of the top surface and the middle part of the bottom surface of the spring pressure plate are provided with flanges inserted into the two long slot holes of the locking piece one by one; the lock buckle spring is installed on the movable rod and is located between the front end plate of the locking piece and the spring pressure plate; Two pairs of template opening limit mechanisms are installed one by one between the middle of the outer surfaces of the two ends of the two side templates and the middle of the two side end surfaces of the two end templates; each template opening limit mechanism includes an opening limit plate and a limit bolt; the opening limit plate is fixed on the side end surface of the end template and inclined toward the outer and lower direction of the side template, and a long waist-shaped limit hole is provided on the opening limit plate; the limit bolt is inserted into the limit hole of the opening limit plate and then vertically installed on the end outer surface of the side template. The demoulding method comprises the following steps: Step 1: First, two side templates and two end templates are respectively connected to the bottom template in a vertical direction through a pair of hinges, and then the two end templates are locked with the two side templates through two pairs of template opening limit mechanisms, so that the two side templates and the two end templates and the bottom template together form a mold cavity, and the pouring port of the prefabricated mold is facing upward, and then concrete is poured into the mold cavity; Step 2: After the concrete in the mold cavity reaches the final setting strength, the hook of the lifting equipment is reliably connected to the two hanging rods; Step 3: Start the hoisting equipment to lift the precast mold and the concrete encapsulation component in the precast mold to a height of 0.5 to 1.0 meters above the ground, and then pause. The operator manually turns over the bottom template of the precast mold, that is, rotates the precast mold 180 degrees around the two hanging rods, so that the pouring port of the precast mold faces downward. Step 4: The operator first grasps the operating lever in the opening and closing actuator assembly and pulls it outward and toward the corresponding lock hook, so that the hinged end of the operating lever and the locking member moves outward toward the corresponding lock hook, until the angle between the connecting rod and the hinged rod changes from 90° to greater than 180°, so that the locking member moves toward the corresponding lock hook and approaches the lock hook, and the movable rod in the locking member moves relatively away from the corresponding lock hook until the flange on the spring pressure plate moves to the rear end of the long slot hole of the locking member, at which time the front end of the lock buckle exceeds the front end of the lock hook, and the operator grasps the front part of the locking member and pulls it outward, so that the lock buckle is disengaged from the lock hook through the movable rod; Step 5. After releasing the connection between the lock buckle and the lock hook, the concrete encapsulation component in the precast mold moves downward under the action of its own weight, pushing the two side templates and the two end templates to expand outward around a pair of hinges respectively. During the expansion process, the limit bolts slide in the limit holes of the opening limit plates to control the opening angles of the two side templates and the two end templates. The concrete encapsulation component falls off smoothly vertically downward from the four-sided pyramid demoulding channel formed by the bottom template and the two expanded side templates and the two end templates.

2. The demoulding method of the prefabricated mold of the buried pipeline concrete encapsulation component according to claim 1 is characterized in that: The end surfaces at both ends of the side template are respectively provided with dovetail tenons; the inner surfaces on both sides of the end template are respectively provided with dovetail tenon grooves adapted to the dovetail tenons.

3. The demoulding method of the prefabricated mold of the buried pipeline concrete encapsulation component according to claim 1 is characterized in that: A plurality of stiffening plates are arranged between the outer surface of the hanger rod and the outer surface of the end template.

4. The demoulding method of the prefabricated mold of the buried pipeline concrete encapsulation component according to claim 1, characterized in that: The template locking mechanism also includes a block fixed to the outer surface of the side template for the rear closing portion of the locking member to abut against.

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