A detection device for concrete pouring cavities in the inner cavity of a precast formwork column

Abstract

The present invention discloses a detection device for casting cavities in the inner cavity of a prefabricated formwork column, belonging to the technical field of concrete cavity detection. A detection device for casting cavities in the inner cavity of a prefabricated formwork column includes a base device. Both the left and right ends of the lower side of the base device are slidably connected with cross bars. Limiting rings are fixedly connected to the sides of the cross bars. A plurality of linkage devices are fixedly connected to the upper ends of the cross bars at equal intervals. A detection structure is slidably connected to the middle parts of two linkage devices located on the same straight line at the upper ends of different cross bars. The detection structure includes a connecting device. Positioning devices are slidably connected to both the left and right ends of the middle part of the connecting device. It can be realized that the knocking device knocks and vibrates the concrete formwork to be measured under the action of the linkage device, so as to locate the cavity position in the concrete formwork to be measured. Then, the detection structure knocks and vibrates the cavity position multiple times to remove the casting cavity, reducing the casting cavity in the concrete formwork to be measured.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete cavity detection, and more specifically, to a detection device for concrete casting cavities in the inner cavity of a precast formwork column. Background Art

[0002] Precast formwork is a modern building construction material widely used in construction sites. It is fabricated on-site in a production line, including a steel bar skeleton and concrete, and can be used to support and strengthen concrete structures. The characteristics of this precast component are its high strength and excellent durability, and it can be made into different sizes and shapes to meet the requirements of different projects.

[0003] Voids are likely to occur inside the precast formwork during cement pouring. Generally, a vibrating rod is inserted into the poured cement to vibrate the cement to reduce casting voids. However, the cement in the precast formwork is mostly strip-shaped, and it is not easy to detect the voids formed during pouring. Using a vibrating rod to vibrate each section greatly increases the workload of construction workers, and it is impossible to directly observe whether the casting voids have been leveled by the vibrating rod, which easily results in a large number of casting voids in the precast formwork cement. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a detection device for concrete casting cavities in the inner cavity of a precast formwork column, which can realize knocking and vibrating the concrete formwork to be measured under the action of a linkage device by a knocking device, so as to locate the void positions in the concrete formwork to be measured, and then perform multiple knocking and vibrating on the void positions through a detection structure to remove the casting voids and reduce the casting voids in the concrete formwork to be measured.

[0006] Technical Solutions

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A detection device for concrete casting cavities in a precast formwork column, comprising a base device. At both left and right ends of the lower side of the base device, there are sliding connections with cross bars. On the sides of the cross bars, there are fixedly connected limiting rings. At equal intervals on the upper ends of the cross bars, there are fixedly connected multiple linkage devices. Between the middle parts of two linkage devices on the same straight line at different cross bar upper ends, there is a sliding connection with a detection structure. The detection structure includes a connection device. At both left and right ends of the middle part of the connection device, there are sliding connections with positioning devices. At the lower ends of the positioning devices, there is a rotational connection with a knocking device. On the upper side of the middle part of the base device, there is placed a concrete formwork to be tested. The base device includes a base. At equal intervals in the middle of the base, there are multiple strip-shaped holes. At both left and right ends of the base, there are fixedly connected support frames. In the middle of the support frames, there are fixedly connected threaded sleeves. At the four parts of the lower end of the base, there are fixedly connected limiting blocks. In the middle of the limiting blocks, there is a rotational connection with a rotating rod. At the outer end of the middle part of the rotating rod, there is a fixedly connected first gear. At the upper end of the rotating rod, there is a fixedly connected first screw rod. The outer side of the first screw rod is threadedly connected with a collar. At the four parts of the upper end of the base, there are fixedly connected electric motors. At the output ends of the electric motors, there are fixedly connected second gears. Between two collars on the same horizontal line, there is a fixedly connected connecting rod. Through the middle parts of two connecting rods, there is a penetrated connection with a cylindrical rod. At both front and rear ends of the cylindrical rod, there are detachable connections with caps. In the middle of the threaded sleeve, there is a threaded connection with a second screw rod. By the knocking device, under the action of the linkage device, the concrete formwork to be tested is knocked and vibrated, so as to locate the cavity position in the concrete formwork to be tested. Then, through the detection structure, the cavity position is knocked and vibrated multiple times to remove the casting cavity, reducing the casting cavity in the concrete formwork to be tested.

[0009] Further, the linkage device includes a transfer block. At both ends of the transfer block, there are fixedly connected racks. In the middle of the transfer block, there is a snap hole. At equal intervals at the rear end of the transfer block, there are fixedly connected multiple U-shaped brackets. At the end of the U-shaped bracket far from the transfer block, there is a fixedly connected vertical plate. Between two vertical plates on the same horizontal line, there are fixedly connected two intercepting rods, enabling the linkage device to control the metal ball to knock on the side wall of the concrete formwork to be tested through the elastic rod.

[0010] Further, the connection device includes a cross plate. At both left and right ends of the cross plate, there are sliding rails. In the middle of the cross plate, there is a fixedly connected hollow sleeve. At the upper end of the middle part of the cross plate, there is a fixedly connected handle, enabling the positioning device to move in the middle of the sliding rail, and enabling the connection device to drive the detection structure to move through the cylindrical rod.

[0011] Further, the positioning device includes an I-shaped clamping block. At the lower end of the I-shaped clamping block, there is a fixedly connected bracket. On the side of the bracket, there is a fixedly connected L-shaped clamping rod, enabling the detection structure to be limited, and enabling the knocking device to rotate in the middle of the lower end of the positioning device.

[0012] Further, the knocking device includes a rotating rod. Both the front and rear parts of the outer end of the rotating rod are fixedly connected with a third gear. The outer end of the rotating rod is fixedly connected with a cylindrical cushion block at both ends away from each other. The outer end of the cylindrical cushion block is fixedly connected with three elastic rods at equal angles. The end of the elastic rod away from the cylindrical cushion block is fixedly connected with a metal ball, so that the side wall of the concrete mold shell to be measured can be knocked by the metal ball.

[0013] Further, the first gear and the second gear are meshed, and the cylindrical rod can pass through the middle of the hollow sleeve, so that the second gear can drive the first gear to rotate, and the cylindrical rod can drive the detection mechanism to move through the hollow sleeve.

[0014] Further, annular protrusions are provided at the ends of the two second screws close to each other, and the annular protrusions are matched with the middle of the limit ring, so that the second screw can drive the cross bar to move, and the second screw is not easily disengaged from the middle of the limit ring.

[0015] Further, the lower end of the L-shaped snap rod is matched with the snap hole, and the third gear can be meshed with the rack, so that the L-shaped snap rod can be inserted into the middle of the snap hole to limit the detection structure, and the third gear can be driven to rotate by the rack during movement.

[0016] Further, the linkage device is matched with the strip hole, and the intercepting rod can limit the elastic rod, so that the linkage device can slide in the middle of the strip hole, and the elastic rod can drive the metal ball to knock the side wall of the concrete mold shell to be measured through the intercepting rod.

[0017] Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] (1) In this solution, the knocking device knocks and vibrates the concrete mold shell to be measured under the action of the linkage device, so as to locate the position of the cavity in the concrete mold shell to be measured. Then, the detection structure knocks and vibrates the cavity position multiple times to remove the casting cavity, reducing the casting cavity in the concrete mold shell to be measured.

[0020] (2) The linkage device can be adjusted through the second screw to adapt to various specifications of concrete mold shells to be measured, so that the detection structure can detect various concrete mold shells to be measured with different specifications.

[0021] (3) The connecting device can make the position where the casting cavity appears inside the concrete mold shell be quickly filled by the manual up and down movement of the staff. Description of the drawings

[0022] Figure 1 is the overall three-dimensional view of the present invention;

[0023] Figure 2 Overall disassembly diagram of the present invention;

[0024] Figure 3 Stereogram of the base device of the present invention;

[0025] Figure 4 Stereogram of the cross bar, limiting ring, and linkage device of the present invention;

[0026] Figure 5 Stereogram of the linkage device of the present invention;

[0027] Figure 6 Stereogram of the detection structure of the present invention;

[0028] Figure 7 Disassembly diagram of the detection structure of the present invention;

[0029] Figure 8 is Figure 7 Partial enlarged view A of;

[0030] Figure 9 Partial semi-sectional stereogram of the linkage device, positioning device, and knocking device of the present invention;

[0031] Figure 10 Partial semi-sectional front view schematic diagram of the present invention;

[0032] Figure 11 is Figure 10 Partial enlarged view B of.

[0033] Explanation of the reference numerals in the figure:

[0034] 1. Base device; 101. Base; 102. Strip-shaped hole; 103. Support frame; 104. Threaded sleeve; 105. Limit block; 106. Rotating rod; 107. First gear; 108. First screw; 109. Collar; 110. Motor; 111. Second gear; 112. Connecting rod; 113. Cylindrical rod; 114. Cap; 2. Cross bar; 3. Limiting ring; 4. Linkage device; 401. Intermediate block; 402. Rack; 403. Snap hole; 404. U-shaped bracket; 405. Vertical plate; 406. Intercepting rod; 5. Second screw; 6. Connecting device; 601. Horizontal plate; 602. Slide rail; 603. Hollow sleeve; 604. Handle; 7. Positioning device; 701. I-shaped clamping block; 702. Bracket; 703. L-shaped clamping rod; 8. Knocking device; 801. Rotating rod; 802. Third gear; 803. Cylindrical cushion block; 804. Elastic rod; 805. Metal ball; 9. Concrete formwork to be measured. Detailed implementation manners

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside the adapted model element. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Please refer to Figures 1-11, a detection device for concrete pouring cavities in the inner cavity of a precast formwork column, comprising a base device 1. Both left and right ends of the lower side of the base device 1 are slidably connected with cross bars 2. Limiting rings 3 are fixedly connected to the sides of the cross bars 2. A plurality of linkage devices 4 are fixedly connected to the upper ends of the cross bars 2 at equal intervals. A detection structure is slidably connected to the middle parts of two linkage devices 4 located on the same straight line at the upper ends of different cross bars 2. The detection structure includes a connecting device 6. Both left and right ends of the middle part of the connecting device 6 are slidably connected with positioning devices 7. A knocking device 8 is rotatably connected to the lower end of the positioning device 7. A concrete formwork 9 to be tested is placed on the upper side of the middle part of the base device 1. The base device 1 includes a base 101. A plurality of strip holes 102 are equidistantly arranged in the middle of the base 101. Support frames 103 are fixedly connected to both left and right ends of the base 101. A threaded sleeve 104 is fixedly connected to the middle of the support frame 103. Limiting blocks 105 are fixedly connected to the four parts at the lower end of the base 101. A rotating rod 106 is rotatably connected to the middle of the limiting block 105. A first gear 107 is fixedly connected to the outer end of the middle part of the rotating rod 106. A first screw rod 108 is fixedly connected to the upper end of the rotating rod 106. A collar 109 is threadedly connected to the outer side of the first screw rod 108. Electric motors 110 are fixedly connected to the four parts at the upper end of the base 101. A second gear 111 is fixedly connected to the output end of the electric motor 110. A connecting rod 112 is fixedly connected between two collars 109 located on the same horizontal line. A cylindrical rod 113 passes through the middle parts of the two connecting rods 112. Caps 114 are detachably connected to both front and rear ends of the cylindrical rod 113. A second screw rod 5 is threadedly connected to the middle of the threaded sleeve 104.

[0039] Please refer to Figures 2-8 , the linkage device 4 includes a transfer block 401. Rack bars 402 are fixedly connected to both ends of the transfer block 401. A snap hole 403 is formed in the middle of the transfer block 401. A plurality of U-shaped brackets 404 are fixedly connected to the rear end of the transfer block 401 at equal intervals. A vertical plate 405 is fixedly connected to the end of the U-shaped bracket 404 away from the transfer block 401. Two intercepting rods 406 are fixedly connected between two vertical plates 405 located on the same horizontal line, enabling the linkage device 4 to control the metal ball 805 to knock on the side wall of the concrete formwork 9 to be tested through the elastic rod 804. The connecting device 6 includes a cross plate 601. Slide rails 602 are formed at both left and right ends of the cross plate 601. A hollow sleeve 603 is fixedly connected to the middle of the cross plate 601. A grip 604 is fixedly connected to the upper end of the middle part of the cross plate 601, enabling the positioning device 7 to move in the middle of the slide rail 602, and enabling the connecting device 6 to drive the detection structure to move through the cylindrical rod 113.

[0040] Please refer to Figures 7-11, the positioning device 7 includes an I-shaped clamping block 701. The lower end of the I-shaped clamping block 701 is fixedly connected to a bracket 702. The side of the bracket 702 is fixedly connected to an L-shaped clamping rod 703, so that the detection structure can be limited, and the knocking device 8 can rotate in the middle of the lower end of the positioning device 7. The knocking device 8 includes a rotating rod 801. Both the front and rear parts of the outer end of the rotating rod 801 are fixedly connected with a third gear 802. The outer end of the rotating rod 801 is fixedly connected with a cylindrical cushion block 803 at both ends away from the two third gears 802. Three elastic rods 804 are fixedly connected to the outer end of the cylindrical cushion block 803 at equal angles. The end of the elastic rod 804 away from the cylindrical cushion block 803 is fixedly connected with a metal ball 805, so that the side wall of the concrete formwork 9 to be measured can be knocked by the metal ball 805.

[0041] Please refer to Figures 2-7 , the first gear 107 and the second gear 111 are meshed and connected, and the cylindrical rod 113 can pass through the middle of the hollow sleeve 603, so that the second gear 111 can drive the first gear 107 to rotate, and the cylindrical rod 113 can drive the detection mechanism to move through the hollow sleeve 603. Annular protrusions are provided at the ends of the two second screws 5 close to each other, and the annular protrusions match the middle of the limiting ring 3, so that the second screw 5 can drive the cross bar 2 to move, and the second screw 5 is not easily disengaged from the middle of the limiting ring 3.

[0042] Please refer to Figures 5-11 , the lower end of the L-shaped clamping rod 703 matches the clamping hole 403, and the third gear 802 can be meshed with the rack 402, so that the L-shaped clamping rod 703 can be inserted into the middle of the clamping hole 403 to limit the detection structure, and the third gear 802 can be driven to rotate by the rack 402 during the movement. The linkage device 4 matches the strip-shaped hole 102, and the intercepting rod 406 can limit the elastic rod 804, so that the linkage device 4 can slide in the middle of the strip-shaped hole 102, and the elastic rod 804 can drive the metal ball 805 to knock the side wall of the concrete formwork 9 to be measured through the intercepting rod 406.

[0043] During detection, first place the concrete formwork 9 to be measured in the middle of the upper end of the base 101, rotate the second screw 5, so that the second screw 5 drives the cross bar 2 and the linkage device 4 to move towards the concrete formwork 9 through the limiting ring 3, and stop when the intercepting rod 406 is three centimeters away from the side of the concrete formwork 9 to be measured. Move the two I-shaped clamping blocks 701 to the appropriate positions through the slide rail 602, so that the two L-shaped clamping rods 703 can just be inserted into the clamping holes 403, limit the multiple detection structures through the L-shaped clamping rods 703 and the clamping holes 403, pass the cylindrical rod 113 through the middle of the hollow sleeve 603 in turn, and limit the two ends of the cylindrical rod 113 in the middle of the two connecting rods 112 through the cap 114;

[0044] Turn on the motor 110. The motor 110 drives the second gear 111 to make a reciprocating rotational motion. The second gear 111 drives the rotating rod 106 to reciprocate through the first gear 107. The rotating rod 106 drives the first screw rod 108 to reciprocate, causing the first screw rod 108 to drive the collar 109 to move up and down reciprocally. The collar 109 drives the cylindrical rod 113 to move up and down reciprocally through the connecting rod 112. The cylindrical rod 113 drives the detection structure to move up and down reciprocally through the hollow sleeve 603. The third gear 802 rotates when moving up and down through the meshing connection with the rack 402. The third gear 802 drives the knocking device 8 to make a reciprocating rotational motion. When the knocking device 8 rotates, it drives the elastic rod 804 to move. The elastic rod 804 is blocked and deformed by the blocking rod 406 during the movement. The elastic rod 804 continues to move and elastically resets after breaking away from the blocking of the blocking rod 406. During the elastic reset process of the elastic rod 804, the metal ball 805 is driven to impact the side wall of the concrete mold shell 9 to be measured. During the process of turning on the motor 110, the staff collects the sound of the metal ball 805 impacting the side wall of the concrete mold shell 9 to be measured and records the positions where hollow knocking sounds occur.

[0045] Turn off the motor 110. Take out the cylindrical rod 113 from the middle of the hollow sleeve 603. The staff finds the detection structure at the position where the hollow knocking sound just occurred, holds the handle 604 and moves the detection structure up and down reciprocally multiple times, causing the metal ball 805 to impact the side wall of the concrete mold shell 9 to be measured multiple times, so that the concrete casting cavities inside the concrete mold shell 9 to be measured are removed by vibration. It can be realized that the knocking device 8 knocks and vibrates the concrete mold shell 9 to be measured under the action of the linkage device 4, thereby positioning the cavities in the concrete mold shell 9 to be measured, and then the detection structure knocks and vibrates the cavity positions multiple times to remove the casting cavities, reducing the casting cavities in the concrete mold shell 9 to be measured.

[0046] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A device for detecting a cavity in a prefabricated formwork column during concrete pouring, comprising a base device (1), characterized in that: The left and right ends of the lower side of the base device (1) are slidably connected to a cross bar (2), the side edges of the cross bar (2) are fixedly connected to a limit ring (3), the upper end of the cross bar (2) is equidistantly fixedly connected to a plurality of linkage devices (4), the middle parts of two linkage devices (4) located on the same straight line at the upper ends of different cross bars (2) are slidably connected to a detection structure, the detection structure comprises a connecting device (6), the left and right ends of the middle part of the connecting device (6) are slidably connected to a positioning device (7), the lower end of the positioning device (7) is rotatably connected to a knocking device (8), and a concrete formwork (9) to be tested is placed on the upper middle part of the base device (1); The base device (1) comprises a base (101), a plurality of strip-shaped holes (102) are equidistantly provided in the middle of the base (101), the left and right ends of the base (101) are fixedly connected to a support frame (103), the middle of the support frame (103) is fixedly connected to a threaded sleeve (104), the four lower parts of the base (101) are fixedly connected to a limit block (105), the middle of the limit block (105) is rotatably connected to a rotating rod (106), the outer end of the middle of the rotating rod (106) is fixedly connected to a first gear (107), the upper end of the rotating rod (106) is fixedly connected to a first screw (108), and the first screw (108) is fixedly connected to the upper end of the rotating rod (106). 08) is threadedly connected to a collar (109) on the outside, the four upper parts of the base (101) are fixedly connected to a motor (110), the output end of the motor (110) is fixedly connected to a second gear (111), a connecting rod (112) is fixedly connected between two collars (109) located on the same horizontal line, a columnar rod (113) is connected through the middle of the two connecting rods (112), and the front and rear ends of the columnar rod (113) are detachably connected to caps (114), the middle part of the threaded sleeve (104) is threadedly connected to a second screw rod (5), and the linkage device (4) includes a transfer block (401), and the transfer block (401) has two The ends of the transfer block (401) are fixedly connected to a rack (402), a buckle hole (403) is opened in the middle of the transfer block (401), a plurality of U-shaped brackets (404) are fixedly connected to the rear end of the transfer block (401) at equal intervals, one end of the U-shaped bracket (404) away from the transfer block (401) is fixedly connected to a vertical plate (405), and two intercepting rods (406) are fixedly connected between two vertical plates (405) located on the same horizontal line, and the positioning device (7) comprises an I-shaped clamping block (701), the lower end of the I-shaped clamping block (701) is fixedly connected to a bracket (702), and the side of the bracket (702) is fixedly connected to an L-shaped buckle rod (703), and the The striking device (8) comprises a rotating rod (801), the front and rear parts of the outer end of the rotating rod (801) are fixedly connected to the third gear (802), the outer end of the rotating rod (801) located away from the two third gears (802) is fixedly connected to a columnar cushion block (803), the outer end of the columnar cushion block (803) is fixedly connected to three elastic rods (804) at equal angles, the end of the elastic rod (804) away from the columnar cushion block (803) is fixedly connected to a metal ball (805), the lower end of the L-shaped buckle rod (703) matches the buckle hole (403), and the third gear (802) can be meshed and connected with the rack (402).

2. A device for detecting hollow concrete pouring cavities in prefabricated formwork columns according to claim 1, characterized in that: The connecting device (6) comprises a transverse plate (601), the left and right ends of the transverse plate (601) are provided with slide rails (602), the middle of the transverse plate (601) is fixedly connected to a hollow sleeve (603), and the upper end of the middle of the transverse plate (601) is fixedly connected to a handle (604).

3. A device for detecting hollow concrete pouring cavities in prefabricated formwork columns according to claim 2, characterized in that: The first gear (107) and the second gear (111) are meshingly connected, and the columnar rod (113) is capable of passing through the middle of the hollow sleeve (603).

4. The device for detecting the cavity of concrete cast in a prefabricated formwork column according to claim 1, characterized in that: An annular protrusion is provided at the adjacent ends of the two second screw rods (5), and the annular protrusion matches the middle part of the limiting ring (3).

5. The device for detecting the cavity of concrete pouring in a prefabricated formwork column according to claim 1, characterized in that: The linkage device (4) matches the strip-shaped hole (102), and the intercepting rod (406) can limit the elastic rod (804).

Images