Prefabricated T-beam reinforcing steel bar integral pre-embedded wall type guardrail construction device
Through the construction device of prefabricated T-beam reinforced steel bars, the problems of low construction efficiency, high safety risks, poor concrete compactness and low formwork removal efficiency in traditional construction methods are solved, and efficient, safe and dense guardrail construction results are achieved.
Patent Information
- Application Number
- CN202421326304.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The traditional wall guardrail steel bar construction method has problems such as low construction efficiency, high safety risks, poor concrete density and low formwork removal efficiency.
The construction device of the prefabricated T-beam reinforcement steel bars is adopted, including a fixed steel bar tire frame, temporary bracket, mobile truss tool trolley and formwork rapid removal bracket. Through these devices, the precise positioning of the steel bar frame, efficient pouring of concrete and rapid removal of formwork are achieved.
The production efficiency of the guardrail steel skeleton is improved, the compactness of the concrete and the overall embedded positioning accuracy of the guardrail is ensured, the formwork removal process is simplified, and construction costs and safety risks are reduced.
Smart Images

Figure CN222758726U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wall type guardrail reinforcement construction, and in particular comprises a prefabricated T-beam reinforcement integrally embedded wall type guardrail construction device. Background Art
[0002] With the improvement of the quality of bridge construction and the continuous improvement of construction standardization, the requirements for the quality and appearance of anti-collision guardrails are also increasing. The traditional wall guardrail steel bars adopt the construction method of semi-embedded + later welding. Workers need to go outside the bridge deck to perform high-altitude welding operations, which has low construction efficiency and extremely high safety risks. When pouring the guardrail concrete, the density of the concrete cannot be guaranteed, which affects the quality of the guardrail after forming. In addition, the guardrail template is heavy, which consumes labor and is inefficient to remove.
[0003] Therefore, under the premise of ensuring the quality of prefabricated T-beam guardrail embedded steel bars, it is necessary to integrate new technical solutions to address the problems of low mechanization level and low construction efficiency of traditional processes. Utility Model Content
[0004] The utility model aims to overcome the deficiencies in the prior art and provide a prefabricated T-beam steel bar integrally embedded wall type guardrail construction device.
[0005] The prefabricated T-beam steel bar integral embedded wall type guardrail construction device comprises a trolley for pouring the guardrail, a template removal bracket, a standardized steel bar frame for tying the guardrail steel bar skeleton, and a temporary bracket for temporarily fixing the guardrail steel bar skeleton;
[0006] The standardized steel bar frame includes a bottom plate, on which a plurality of limit blocks are fixedly arranged through a support frame, and on which a plurality of limit blocks are slidably arranged through a moving groove, and on which a steel bar limit groove is arranged;
[0007] The upper part of the temporary support is provided with a second connecting rod, and the lower part is provided with a plurality of first connecting rods for sliding. The second connecting rod and the first connecting rod are connected by a pull rod. The second connecting rod is provided with a comb plate through an adjustable connecting rod for fixing the guardrail steel bar skeleton;
[0008] The trolley is equipped with a trash bin, a concrete trough, a vibrator power supply assembly and a water tank; a steel pipe is provided on the top of the formwork removal bracket, one end of the steel pipe is connected to the guardrail formwork, and the guardrail formwork is lifted when the other end is pressed down.
[0009] As preferably, the standardized steel bar frame has a pulley installed at the lower part of the bottom plate, two vertical rods are welded at the upper part of the bottom plate, and a horizontal rod is welded between the vertical rods; two support frames and two fixed rods are arranged on the bottom plate, and upper and lower adjacent array limit blocks are arranged between the two support frames and between the two fixed rods, and the limit blocks in the same group are fixed in series into a whole through a transverse connecting rod, and the transverse connecting rod is a length telescopic structure, and the upper and lower adjacent limit blocks are fixed in series through a vertical connecting rod; the two ends of the limit blocks in series as a whole are fixed to the fixed rod or the support frame through end rods, and threads and springs are arranged in the end rods; the fixed rods and the support frames on both sides are provided with rotating screws, and the rotating screws rotate in the end rods and are connected to the springs inside the end rods, and the backs of the two fixed rods are fixedly connected with fixed plates, and sliders are arranged at the bottom ends of both sides of the fixed plates, and a moving groove is opened on the bottom plate, and the slider is placed in the moving groove; a power supply and a motor are arranged on the bottom plate at the back of the fixed plate, and the motor pushes the limit blocks on the fixed plate and the fixed rod to move forward and backward as a whole through a push rod, and a scale is arranged on one side of the moving groove; the support frame is anchored to the bottom plate through a fixing member.
[0010] Preferably, the temporary support is placed on the working platform, and the temporary support includes an L-bracket, a second connecting rod is arranged between the upper parts of the two L-brackets, an adjustable connecting rod with a variable angle is installed on the second connecting rod, a comb plate is fixed on the adjustable connecting rod, a limit groove is arranged on the comb plate, and a level bubble is arranged on the second connecting rod for observing the displacement of the guardrail steel bar skeleton; positioning grooves are arranged on the lateral grooves of the lower parts of the two L-brackets, and several first connecting rods are arranged between the positioning grooves, and both ends of the first connecting rod are placed in the positioning grooves through positioning blocks; the second connecting rod is connected to the upper pull rod through a fastening sleeve, the first connecting rod is connected to the lower pull rod through a fastening sleeve, and the upper pull rod and the lower pull rod are connected by anchors.
[0011] Preferably, the trolley is provided with a garbage bin, a concrete trough, a vibrator power supply assembly and a water tank in sequence, wherein the garbage bin is provided with a dust suction assembly, the dust suction assembly is connected to a brush head through a dust suction pipeline, and the dumping garbage bin is provided with an opening and closing handle; the concrete trough is connected to a slurry discharge pipe, which is used to pour guardrail concrete in layers onto the guardrail formwork of the guardrail; a groove is opened above the vibrator power supply assembly, a sliding frame is provided between the water storage tank and the concrete trough, a movable slide is sliding on the sliding frame, and the movable slide is fixed with a vibrator through a telescopic rod, and when the movable slide slides on the sliding frame, the vibrator performs all-round secondary vibration of the guardrail concrete in the guardrail formwork; a fixing part is provided on the side of the trolley, a plug plate of a nozzle connecting plate is inserted in the fixing part, the water storage tank is externally connected to a first water outlet pipe, and the first water outlet pipe passes through the inside of the plug plate; the first water outlet pipe is evenly provided with a second water outlet pipe, and a nozzle is provided on the second water outlet pipe.
[0012] Preferably, the template removal bracket includes a pressure plate, a pulley is provided at the bottom of the pressure plate, a four-corner frame is provided at the top, a water tank is provided on the pressure plate, the water tank is connected to a ring-shaped water outlet pipe through a water pump, the ring-shaped water outlet pipe is provided with a water outlet branch pipe extending through the outside of the four-corner frame, the water outlet branch pipe is connected to a nozzle for cleaning stains on the surface of the template; an angle-adjustable sleeve is provided at the top of the four-corner frame, the angle-adjustable sleeve is connected to a steel pipe, a stop ring is provided at one end of the steel pipe for connecting to a lifting ring on the guardrail template; the other end of the steel pipe is adjustable in length and the stop ring lifts the guardrail template when pressed down.
[0013] The beneficial effects of the utility model are:
[0014] 1) The standardized steel bar frame of the utility model adjusts the left and right spacing of the guardrail steel bar skeleton by rotating the screw rod, adjusts the front and rear distance of the guardrail steel bar skeleton by the electric push rod, and uses the steel bar limiting groove on the limiting block to accurately locate the position of each steel bar. The operation is simple and the guardrail steel bar skeleton production efficiency is high.
[0015] 2) The temporary bracket of the utility model is placed on the working platform, and the limiting grooves on the comb plate are used to temporarily fix the guardrail steel bars embedded in the T-beam steel frame. At the same time, the deviation of the guardrail steel frame during installation is observed through the level bubble, ensuring the accurate overall embedded positioning of the guardrail steel frame.
[0016] 3) The mobile truss tool trolley of the utility model forms an integrated construction of site cleaning, concrete pouring, vibration and maintenance, which improves the speed of guardrail construction and can implement secondary vibration of concrete, thereby improving the density, impermeability and durability of concrete.
[0017] 4) The utility model of the quick dismantling bracket of the formwork adopts the "lever principle" to carry out the dismantling construction of the shaped steel formwork, and a nozzle is arranged to clean the surface of the formwork, so as to facilitate the recovery and turnover of the formwork. The method is simple and flexible in construction, and the construction cost is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural diagram of a standardized steel bar frame for making a guardrail steel bar skeleton;
[0019] Figure 2 It is a structural schematic diagram of a standardized steel tire frame;
[0020] Figure 3 It is the connection diagram of the end rod;
[0021] Figure 4 It is a schematic diagram of the structure of the temporary support stabilizing the guardrail steel bars embedded as a whole;
[0022] Figure 5 It is a schematic diagram of the connection between the temporary support and the guardrail steel frame;
[0023] Figure 6 It is a structural schematic diagram of a temporary support;
[0024] Figure 7 It is a structural schematic diagram of a mobile truss tool trolley;
[0025] Figure 8 It is a structural schematic diagram of the nozzle connection plate;
[0026] Fig. 9 It is a structural schematic diagram of the template quick removal bracket;
[0027] Fig.10 It is a schematic diagram of the connection between the template removal bracket and the template.
[0028] In the figure: 1-cross bar, 2-vertical bar, 3-fixed plate, 4-rotating screw, 5-motor, 6-bottom plate, 7-power supply, 8-push rod, 9-scale, 10-moving groove, 11-slider, 12-fixed rod, 13-fixed piece, 14-pulley, 15-support frame, 16-limit block, 17-limit groove, 18-vertical connecting rod, 19-transverse connecting rod, 20-end rod, 21-guardrail steel frame, 22-spring, 23-comb plate, 24-T beam steel frame, 25-level bubble, 26-L bracket, 27-upper pull rod, 28-fastening sleeve, 29-adjustable connecting rod, 30-lower pull rod, 31-working platform, 32-first connecting rod, 33-anchor, 34-positioning block, 35-fixed Position slot, 36-second connecting rod, 37-water tank, 38-vibrator power supply assembly, 39-concrete trough, 40-trash can, 41-handle, 42-trolley, 43-dust suction assembly, 44-brush head, 45-dust suction pipeline, 46-guardrail template, 47-slurry discharge pipe, 48-vibrator, 49-sprinkler, 50-second water outlet pipe, 51-telescopic rod, 52-sprinkler connecting plate, 53-movable slide, 54-sliding frame, 55-fixed part, 56-first water outlet pipe, 57-insert plate, 58-lower base plate, 59-stop ring, 60-adjustable sleeve, 61-four-corner frame, 62-water outlet branch pipe, 63-pressure plate, 64-annular water outlet pipe, 65-water pump, 66-steel pipe, 67-lifting ring, 68-guardrail. DETAILED DESCRIPTION
[0029] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
[0030] Embodiment 1
[0031] As an example, as 1 to Fig.10 As shown, the prefabricated T-beam steel bar integral embedded wall type guardrail construction device includes a horizontal bar 1, a vertical bar 2, a fixed plate 3, a rotating screw 4, a motor 5, a bottom plate 6, a power supply 7, a push rod 8, a scale 9, a moving groove 10, a slider 11, a fixed rod 12, a fixing part 13, a pulley 14, a support frame 15, a limit block 16, a limit groove 17, a vertical connecting rod 18, a horizontal connecting rod 19, an end rod 20, a guardrail steel bar skeleton 21, a spring 22, a comb plate 23, a T-beam steel bar skeleton 24, a level bubble 25, an L bracket 26, an upper pull rod 27, a fastening sleeve 28, an adjustable connecting rod 29, a lower pull rod 30, a working platform 31, a first connecting rod 32, and an anchor 33. , positioning block 34, positioning groove 35, second connecting rod 36, water storage tank 37, vibrating rod power supply assembly 38, concrete trough 39, trash can 40, handle 41, trolley 42, dust suction assembly 43, brush head 44, dust suction pipeline 45, guardrail template 46, slurry outlet pipe 47, vibrating rod 48, nozzle 49, second water outlet pipe 50, telescopic rod 51, nozzle connecting plate 52, movable slide 53, sliding frame 54, fixing part 55, first water outlet pipe 56, plug plate 57, lower bottom plate 58, stop ring 59, adjustable sleeve 60, quadrangular frame 61, water outlet branch pipe 62, pressure plate 63, annular water outlet pipe 64, water pump 65, steel pipe 66, lifting ring 67, guardrail 68;
[0032] The prefabricated T-beam steel bar integrally embedded wall guardrail adopts standardized steel bar frame manufacturing technology; the prefabricated T-beam steel bar integrally embedded wall guardrail adopts temporary bracket stable overall embedding technology; the prefabricated T-beam steel bar integrally embedded wall guardrail adopts mobile truss tool trolley secondary vibration technology; the prefabricated T-beam steel bar integrally embedded wall guardrail adopts template rapid dismantling technology.
[0033] The standardized steel bar tire frame includes a bottom plate 6, on which a plurality of limit blocks 16 are fixedly arranged through a support frame 15, and on which a plurality of limit blocks 16 are slidably arranged through a movable groove 10, and a steel bar limit groove 17 is arranged on the limit block 16;
[0034] The temporary support is provided with a second connecting rod 36 on the upper part, and a plurality of first connecting rods 32 are slidably provided on the lower part. The second connecting rod 36 and the first connecting rod 32 are connected by a pull rod. The second connecting rod 36 is provided with a comb plate 23 through an adjustable connecting rod 29 for fixing the guardrail steel bar skeleton 21.
[0035] The trolley 42 is provided with a trash bin 40, a concrete trough 39, a vibrating rod power supply assembly 38 and a water tank 37; a steel pipe 66 is provided at the top of the template removal bracket, one end of the steel pipe 66 is connected to the guardrail template 46, and the other end lifts the guardrail template 46 when pressed down.
[0036] Embodiment 2
[0037] As another embodiment, this embodiment 2 proposes a more specific prefabricated T-beam steel bar integrally embedded wall type guardrail construction device based on the embodiment 1:
[0038] The described standardized steel bar frame has a pulley 14 installed at the lower part of the bottom plate 6, two vertical rods 2 are welded at the upper part, and a horizontal rod 1 is welded between the vertical rods, so that workers can push the pulley 14 to move; a steel bar limiting groove 17 is provided on the limit block 16, and a guardrail steel bar skeleton 21 is tied. The upper and lower, left and right adjacent limit blocks 16 are connected in series and fixed into a whole through a compressible transverse connecting rod 19; the two ends of the limit blocks 16 connected in series are fixed to the fixed rod 12 and the support frame 15 through the end rod 20; the fixed rods on both sides are provided with a rotating screw 4, which is connected to the spring 22 inside the end rod 20, and the spring 22 is contracted by adjusting the rotating screw 4 in the positive direction at the same time. , driving the transverse connecting rod 19 to be evenly compressed, thereby reducing the spacing between adjacent limit blocks 16; by simultaneously adjusting the rotating screw 4 in the reverse direction, the spring 22 stretches, driving the transverse connecting rod 19 to be evenly expanded, thereby increasing the spacing between adjacent limit blocks 16; sliders 11 are provided at both ends of the fixed plate 3 and placed in the movable groove 10; one side of the limit block 16 is turned on by turning on the power supply 7 and using the motor 5 to provide thrust, so that the push rod 8 pushes the limit block 16 to move forward and backward as a whole, and the sliding distance is measured by the scale 9; the other side of the limit block 16 is fixed on the support frame 15, and the support frame 15 is anchored to the bottom plate 6 through the fixing member 13.
[0039] The temporary bracket is placed on the working platform 31, and a second connecting rod 36 is arranged on the upper part of the two L brackets 26. An adjustable connecting rod 29 with a variable angle is installed on the rod to fix the comb plate 23. The limiting groove 17 on the comb plate 23 is used to temporarily fix the guardrail steel bars embedded in the T-beam steel frame 24, and the displacement of the guardrail steel frame 21 is observed through the level bubble 25; the lower part of the two L brackets 26 is grooved with positioning grooves 35, and the positioning blocks 34 at both ends of the first connecting rod 32 are placed in the grooves. The number or spacing of the first connecting rods 32 can be increased according to construction needs; the ends of the upper pull rod 27 and the lower pull rod 30 are both provided with threads, which are respectively tightened and fixed with the corresponding fastening sleeves 28, and the connection between the pull rod and the L bracket 26 is strengthened by rotating and adjusting the middle anchor 33.
[0040] The trolley 42 is provided with a trash bin 40, a concrete trough 39, a vibrator power supply assembly 38 and a water tank 37 in sequence, wherein the trash bin 40 is provided with a dust suction pipe 45 connected to a brush head 44, and the road surface near the guardrail construction site is cleaned by opening the dust suction assembly 43, and the trash bin 40 is dumped by opening and closing the handle 41; the concrete trough 39 is connected to the slurry discharge pipe 47, and after the guardrail formwork 46 is set up, the guardrail 68 concrete is poured in layers by grouting the concrete trough 39; after the concrete pouring is completed, the vibrator 48 is used for secondary vibration, and a groove is opened above the vibrator power supply assembly 38, and A sliding frame 54 is arranged between the water tank 37 and the concrete trough 39, and a telescopic rod 51 connected to the vibrating rod 48 is fixed on the movable slide 53. By adjusting the relative position of the movable slide 53 on the sliding frame 54, the guardrail concrete is vibrated twice in all directions; after the guardrail concrete is formed, the water tank 37 is used for watering and curing; the plug plate 57 of the sprinkler connecting plate 52 is inserted into the fixing part 55, and the water tank 37 is externally connected to the first water outlet pipe 56, which passes through the inside of the plug plate 57; the second water outlet pipes 50 are evenly arranged and respectively connected to the first water outlet pipes 56, and sprinklers 49 are arranged thereon to sprinkle water, so as to ensure the quality of the guardrail concrete.
[0041] The template removal bracket is provided with a pulley 14 at the bottom of the pressure plate 63 and a four-corner frame 61 at the top. Water is stored in the water tank 37 and powered by a water pump 65 to form an annular water outlet pipe 64. A water outlet branch pipe 62 is provided on the annular water outlet pipe 64 to pass through the four-corner frame 61 and be connected to the nozzle 49. When the guardrail template 46 is removed, the nozzle 49 can be opened to spray water to clean stains on the surface of the template, so as to facilitate the recycling of the template in the later stage. The steel pipe 66 is connected to the angle-adjustable sleeve 60, and a stop ring 59 is provided at one end of the steel pipe 66 to prevent the lifting ring 67 on the guardrail template 46 from moving left and right during the removal of the guardrail template 46. When the template is removed, the balance of the steel pipe 66 at the other end is controlled by manual operation, and the length of the steel pipe 66 is adjusted by the lever principle to realize easy and quick removal of the template.
Claims
1. A prefabricated T-beam steel bar integrally embedded wall type guardrail construction device, characterized in that: It includes a trolley for pouring guardrails, a formwork removal bracket, a standardized steel bar frame for tying the steel bar skeleton of the guardrail, and a temporary bracket for temporarily fixing the steel bar skeleton of the guardrail; The standardized steel bar frame includes a bottom plate, on which a plurality of limit blocks are fixedly arranged through a support frame, on which a plurality of limit blocks are slidably arranged through a moving groove, and on which a steel bar limit groove is arranged; The upper part of the temporary support is provided with a second connecting rod, and the lower part is provided with a plurality of first connecting rods for sliding. The second connecting rod and the first connecting rod are connected by a pull rod. The second connecting rod is provided with a comb plate through an adjustable connecting rod for fixing the guardrail steel bar skeleton; The trolley is equipped with a garbage bin, a concrete trough, a vibrator power supply assembly and a water tank; a steel pipe is provided on the top of the formwork removal bracket, one end of the steel pipe is connected to the guardrail formwork, and the guardrail formwork is lifted when the other end is pressed down.
2. The prefabricated T-beam steel bar integral embedded wall type guardrail construction device according to claim 1 is characterized in that: The described standardized steel bar tire frame has a pulley installed at the lower part of the bottom plate, two vertical rods are welded at the upper part of the bottom plate, and a cross rod is welded between the vertical rods; two support frames and two fixed rods are arranged on the bottom plate, and array limit blocks adjacent to each other are arranged between the two support frames and between the two fixed rods, and the limit blocks of the same group are fixed in series into a whole through a transverse connecting rod, and the transverse connecting rod is a length telescopic structure, and the limit blocks adjacent to each other are fixed in series through a vertical connecting rod; both ends of the limit blocks of the series as a whole are fixed to the fixed rod or the support frame through end rods, and threads and springs are arranged in the end rods; rotating screws are arranged on the fixed rods and the support frames on both sides, and the rotating screws rotate in the end rods and are connected to the springs inside the end rods; the backs of the two fixed rods are fixedly connected with fixed plates, and sliders are arranged at the bottom ends of both sides of the fixed plates, and a moving groove is opened on the bottom plate, and the slider is placed in the moving groove; a power supply and a motor are arranged on the bottom plate at the back of the fixed plate, and the motor pushes the limit blocks on the fixed plate and the fixed rod to move forward and backward as a whole through a push rod, and a scale is arranged on one side of the moving groove; the support frame is anchored to the bottom plate through a fixing member.
3. The prefabricated T-beam steel bar integral embedded wall type guardrail construction device according to claim 1 is characterized in that: The temporary support is placed on the working platform, and the temporary support includes an L-bracket. A second connecting rod is arranged between the upper parts of the two L-brackets, and an adjustable connecting rod with a variable angle is installed on the second connecting rod. A comb plate is fixed on the adjustable connecting rod, and a limit groove is arranged on the comb plate. A level bubble is arranged on the second connecting rod for observing the displacement of the guardrail steel bar skeleton; positioning grooves are arranged on the lateral grooves of the lower parts of the two L-brackets, and several first connecting rods are arranged between the positioning grooves, and both ends of the first connecting rod are placed in the positioning grooves through positioning blocks; the second connecting rod is connected to the upper pull rod through a fastening sleeve, and the first connecting rod is connected to the lower pull rod through a fastening sleeve, and the upper pull rod and the lower pull rod are connected by an anchor.
4. The prefabricated T-beam steel bar integral embedded wall type guardrail construction device according to claim 1 is characterized in that: The trolley is provided with a garbage bin, a concrete trough, a vibrator power supply assembly and a water tank in sequence, wherein the garbage bin is provided with a dust suction assembly, the dust suction assembly is connected to a brush head through a dust suction pipeline, and the dumping garbage bin is provided with an opening and closing handle; the concrete trough is connected to a slurry discharge pipe, which is used to pour guardrail concrete in layers onto the guardrail formwork of the guardrail; a groove is opened above the vibrator power supply assembly, a sliding frame is provided between the water storage tank and the concrete trough, a movable slide is sliding on the sliding frame, and the movable slide is fixed with a vibrator through a telescopic rod, and when the movable slide slides on the sliding frame, the vibrator performs all-round secondary vibration of the guardrail concrete in the guardrail formwork; a fixing part is provided on the side of the trolley, a plug plate of a nozzle connecting plate is inserted in the fixing part, a first water outlet pipe is connected to the outside of the water storage tank, and the first water outlet pipe passes through the inside of the plug plate; a second water outlet pipe is evenly distributed on the first water outlet pipe, and a nozzle is provided on the second water outlet pipe.
5. The prefabricated T-beam steel bar integral embedded wall type guardrail construction device according to claim 1 is characterized in that: The template removal bracket includes a pressure plate, a pulley is provided at the bottom of the pressure plate, a four-corner frame is provided at the top, a water tank is provided on the pressure plate, the water tank is connected to a ring-shaped water outlet pipe through a water pump, and the ring-shaped water outlet pipe is provided with a water outlet branch pipe extending through the outside of the four-corner frame, and the water outlet branch pipe is connected to a nozzle for cleaning stains on the surface of the template; an angle-adjustable sleeve is provided at the top of the four-corner frame, and the angle-adjustable sleeve is connected to a steel pipe, and a stop ring is provided at one end of the steel pipe for connecting to a lifting ring on the guardrail template; the other end of the steel pipe is adjustable in length and the stop ring lifts the guardrail template when pressed down.