A concrete vibration table for testing and inspection

Abstract

This invention discloses a concrete vibration table for testing, comprising a base, on which multiple vibration springs are fixedly connected. An upper support seat is fixedly connected to the top of each vibration spring. The upper support seat has a placement groove inside, and multiple pushing airbags are fixedly connected inside the placement groove. A positioning plate is fixedly connected to the outside of each pushing airbag. In this invention, a worker can place a plastic test mold into the placement groove of the upper support seat. When the plastic test mold is placed into the placement groove of the upper support seat and positioned by the pushing airbags and positioning plate, air is extracted from the inside of the empty groove through an air inlet pipe, and air is continuously extracted from between the plastic test mold and the bottom wall of the placement groove through an air inlet hole. This creates a negative pressure adsorption between the empty groove, the air inlet hole, and the plastic test mold, ensuring that the plastic test mold can be continuously positioned on the upper support seat and guaranteeing stability during vibration.

Description

Technical Field

[0001] This invention relates to the field of vibration table technology, and more specifically, to a concrete vibration table for testing and detection. Background Technology

[0002] A concrete vibration table is a device suitable for use in laboratories and on-site construction sites for the molding of test specimens and the compaction of precast components such as slabs, columns, and beams. Concrete vibration tables are mainly used in construction, building materials, and research units for the compaction of concrete test blocks. A concrete vibration table typically consists of a table, a vibration motor, springs, and a base frame.

[0003] Most existing concrete vibration tables have electromagnets installed on the table surface or bottom. When using iron molds, they can be attracted by iron molds to ensure the stability of the molds during vibration. However, in order to save resources, most existing molds are made of plastic, which means that existing concrete vibration tables cannot attract and fix plastic molds.

[0004] The patent titled "A Concrete Vibration Table" (CN112405775B) addresses the inability to clamp and secure concrete molds placed on the vibration table, leading to molds easily falling during vibration and affecting the table's efficiency and performance. The proposed solution involves placing the mold within the space enclosed by two horizontal and two vertical clamps on the table. Rotating the handle moves the horizontal clamps to their left and right sides and the vertical clamps to their front and rear sides, effectively clamping the mold and preventing displacement or falling during vibration testing. However, the system uses a turbine to drive a bidirectional screw, which moves the clamps a fixed distance. This method is ineffective for securing molds of different shapes. Therefore, this paper proposes a concrete vibration table for testing. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete vibration table for testing and detection, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a concrete vibration table for testing, comprising a base, a plurality of vibration springs fixedly connected to the base, an upper bearing seat fixedly connected to the top of the vibration springs, a placement groove provided inside the upper bearing seat, a plurality of pushing airbags fixedly connected inside the placement groove, a positioning plate fixedly connected to the outside of the pushing airbags, an air injection structure connected to the outside of the pushing airbags, and a vibration motor installed at the bottom of the upper bearing seat;

[0007] The air injection structure includes a high-pressure air pump, which is fixedly installed on the base. The air outlet of the high-pressure air pump is connected to a distribution box. Multiple distribution air pipes are connected to the outside of the distribution box. The end of the distribution air pipe away from the distribution box is connected to a first electrically controlled valve. The multiple first electrically controlled valves are respectively connected to multiple push airbags. An air inlet pipe is connected to the outside of the high-pressure air pump. The end of the air inlet pipe away from the high-pressure air pump passes through the outer wall of the upper support seat.

[0008] Preferably, the outer surface of the propulsion airbag is integrally formed with an outer expansion body, and the outer surface of the outer expansion body is connected to a second electrically controlled valve, the end of the second electrically controlled valve away from the outer expansion body being connected to the interior of the propulsion airbag.

[0009] Preferably, the inner wall of the outer expansion body is integrally formed with an inner expansion bladder, and the interior of the inner expansion bladder is filled with electrorheological fluid.

[0010] Preferably, the upper support seat has an integrally formed hollow groove inside, and an air inlet is provided inside the upper support seat, which is connected to the hollow groove.

[0011] Preferably, the upper support seat has a dust collection inclined groove and a dust inlet hole inside, the dust collection inclined groove and the dust inlet hole are connected, and the inner bottom wall of the upper support seat placement groove has a plurality of connecting holes, the connecting holes are connected to the dust collection inclined groove.

[0012] Preferably, a dust collection box is connected to the outside of the dust inlet, and a diversion pipe is connected to the outside of the dust collection box. The diversion pipe is connected to the air inlet pipe, and a filter screen is provided on the inner wall of the diversion pipe.

[0013] Preferably, the inner wall of the upper support seat is provided with multiple movable through holes, and multiple positioning rods are fixedly connected to the outside of the positioning plate, with the positioning rods inserted into the movable through holes.

[0014] Preferably, the inner wall of the movable through hole and the outer wall of the positioning rod are both roughened.

[0015] Preferably, the bottom of the positioning plate has multiple built-in slots, and a universal ball is installed inside the built-in slot by a spring.

[0016] Preferably, a battery cell is installed inside the positioning plate, and the battery cell is electrically connected to an external power source via a wire.

[0017] Compared with the prior art, the beneficial effects of the present invention are: In this invention, the operator can place the plastic test mold into the placement slot of the upper support seat, and inject gas into the interior of multiple push airbags by starting a high-pressure air pump. This causes the push airbags to expand and push the positioning plate to squeeze and limit the plastic test mold. By pushing the airbags and driving the positioning plate to limit the test mold inside the placement slot, the operator can limit the plastic test molds of different sizes.

[0018] In this invention, when the plastic mold is placed into the placement groove of the upper support and limited by pushing the airbag and positioning plate, the air inside the empty groove is extracted through the air inlet pipe, and the air between the plastic mold and the bottom wall of the placement groove is continuously extracted through the air inlet hole, so that the empty groove, together with the air inlet hole and the plastic mold, form a negative pressure adsorption, ensuring that the plastic mold can be continuously positioned on the upper support and ensuring stability during vibration. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the expansion state structure of the external expansion body in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the vibration motor and the upper support in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure viewed from below in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the upper support structure in an embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the external expansion body in an embodiment of the present invention; Figure 7 This is a cross-sectional view of the positioning plate in an embodiment of the present invention; Figure 8 This is an embodiment of the present invention. Figure 6 A magnified structural diagram of area A in the diagram.

[0020] In the diagram: 100, base; 101, vibration spring; 102, upper support seat; 103, air inlet pipe; 104, pushing airbag; 105, positioning plate; 106, vibration motor; 107, high-pressure air pump; 108, diversion box; 109, diversion air supply pipe; 110, first solenoid valve; 111, air inlet; 112, empty slot; 200, outer expansion body; 201, second solenoid valve; 300, inner expansion bladder; 301, electrorheological fluid; 400, positioning rod; 500, connecting hole; 501, dust collection inclined slot; 502, dust inlet; 503, diversion pipe; 504, dust collection box; 600, omnidirectional ball; 700, battery cell. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In this invention, the operator can place the plastic test mold into the placement slot of the upper support 102 and inject gas into the multiple pushing airbags 104 by starting the high-pressure air pump 107. This causes the pushing airbags 104 to expand and push the positioning plate 105 to squeeze and limit the plastic test mold. By pushing the airbags 104 to drive the positioning plate 105 to limit the test mold in the placement slot, the operator can limit the plastic test mold of different sizes. At the same time, when the high-pressure air pump 107 is started, the air between the upper support 102 and the test mold can be extracted through the air inlet to form a continuous negative pressure adsorption effect, thereby ensuring the stability of the plastic test mold during the vibration of the vibration table.

[0023] Example 1 like Figures 1-8 As shown, the concrete vibration table for testing in this application includes a base 100, a plurality of vibration springs 101 are fixedly connected to the base 100, an upper bearing seat 102 is fixedly connected to the top of the vibration springs 101, a placement groove is provided inside the upper bearing seat 102, a plurality of pushing airbags 104 are fixedly connected inside the placement groove, a positioning plate 105 is fixedly connected to the outside of the pushing airbags 104, an air injection structure is connected to the outside of the pushing airbags 104, and a vibration motor 106 is installed at the bottom of the upper bearing seat 102. The air injection structure includes a high-pressure air pump 107, which is fixedly installed on the base 100. The air outlet of the high-pressure air pump 107 is connected to a diversion box 108. Multiple diversion air supply pipes 109 are connected to the outside of the diversion box 108. The end of the diversion air supply pipe 109 away from the diversion box 108 is connected to a first solenoid valve 110. The multiple first solenoid valves 110 are respectively connected to multiple push airbags 104.

[0024] Specifically, during use, the operator can place the plastic test mold into the placement slot of the upper support 102 and start the high-pressure air pump 107. The start of the high-pressure air pump 107 will inject gas into the distribution box 108. When the gas is injected into the distribution box 108, the distribution box 108 will divide the gas into multiple distribution air pipes 109. The operator can open different first solenoid valves 110 as needed, so that the gas is delivered to different push air bags 104 through different first solenoid valves 110. The continuous delivery of gas to the push air bags 104 will cause the push air bags 104 to expand. When the push air bags 104 expand, they can push the positioning plate 105 to move inside the placement slot. When the positioning plate 105 is driven by the push air bags 104, it continuously squeezes the plastic test mold located inside the placement slot. The expanded push air bags 104 form support for the positioning plate 105, and the positioning plate 105 clamps the plastic test mold located inside the placement slot.

[0025] Furthermore, in order to ensure that the pushing airbag 104 can smoothly push the positioning plate 105 to squeeze the plastic mold, the bottom of the positioning plate 105 is provided with multiple built-in grooves. The inside of the built-in grooves is equipped with universal balls 600 by springs. The universal balls 600 installed by springs can assist the positioning plate 105 in moving under the push of the pushing airbag 104.

[0026] Furthermore, the high-pressure air pump 107 is externally connected to an air inlet pipe 103. The end of the air inlet pipe 103 away from the high-pressure air pump 107 penetrates the outer wall of the upper support seat 102. When the air inlet of the high-pressure air pump 107 is connected to the air inlet pipe 103 and penetrates the outer wall of the upper support seat 102, the air inlet pipe 103 can suck out the air between the plastic mold and the bottom of the placement groove when the user places the plastic mold inside the upper support seat 102. This creates a negative pressure space between the plastic mold and the placement groove, thereby creating a negative pressure adsorption effect and ensuring the stability of the plastic mold.

[0027] like Figure 5 As shown, the upper support 102 has an integrally formed hollow groove 112 inside, and an air inlet 111 is opened inside the upper support 102. The air inlet 111 is connected to the hollow groove 112. The hollow groove 112 and the air inlet 111 are connected by an air inlet pipe 103. When the air inlet pipe 103 extracts gas through the high-pressure air pump 107, a negative pressure space is formed inside the hollow groove 112 and the air inlet 111, which enhances the adsorption stability of the plastic mold.

[0028] Furthermore, after stabilizing the plastic mold, the vibration motor 106 is activated to drive the upper support seat 102 to vibrate as a whole, thereby shaking out the air bubbles in the plastic mold.

[0029] Furthermore, a battery cell 700 is installed inside the positioning plate 105. The battery cell 700 is electrically connected to an external power source through a wire. The upper support seat 102 is made of iron. When the battery cell 700 is energized, the positioning plate 105 becomes an electromagnet, attracting the upper support seat 102. After the upper support seat 102 and the positioning plate 105 are attracted, the universal ball 600 can be pressed into the built-in groove.

[0030] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, by filling the push airbag 104 with gas, the push airbag 104 can push the positioning plate 105 to squeeze and limit the molds of different sizes. At the same time, the air in the air inlet pipe 103 sucks out the air between the mold and the placement groove, forming a negative pressure adsorption effect. While limiting the plastic molds of different sizes, the stability of the plastic during vibration is ensured.

[0031] Example 2 Considering that during use, the concrete, in a slurry state, is inside the plastic mold, and the upper support 102 vibrates out the air from the plastic mold and concrete to reduce the presence of air bubbles inside the concrete, but during vibration, a large amount of dust may be blown away from the mold and scattered randomly, the following technical content is proposed to solve the above technical problems: like Figures 2-6 An external expansion body 200 is integrally formed on the outside of the airbag 104. A second electric control valve 201 is connected to the outside of the external expansion body 200. The end of the second electric control valve 201 away from the external expansion body 200 is connected to the inside of the airbag 104.

[0032] Specifically, a large amount of dust will be generated during the vibration process. When a large amount of dust is generated, the staff can open the second electric control valve 201 to continuously deliver the gas inside the push airbag 104 to the interior of the outer expansion body 200, thereby causing the outer expansion body 200 to expand. After the outer expansion body 200 expands, it will cover the plastic mold around its perimeter. When dust is generated, the outer expansion body 200 is used to block the dust from spreading.

[0033] like Figures 1-4 As shown, the upper support 102 has a dust collection inclined groove 501 and a dust inlet hole 502 inside. The dust collection inclined groove 501 and the dust inlet hole 502 are connected. The bottom wall of the upper support 102 placement groove has multiple connecting holes 500. The connecting holes 500 are connected to the dust collection inclined groove 501. The dust inlet hole 502 is connected to a dust collection box 504. The dust collection box 504 is connected to a diversion pipe 503. The diversion pipe 503 is connected to the air inlet pipe 103. The inner wall of the diversion pipe 503 is provided with a filter screen.

[0034] Specifically, when the expanded outer expansion body 200 is used to block the randomly scattered dust, the dust will gradually fall into the dust collection inclined groove 501 through the connecting hole 500 due to gravity and the shaking of the upper support seat 102. It will then enter the dust collection box 504 through the suction generated inside the dust inlet hole 502 and the diversion pipe 503. The dust is collected by the dust collection box 504. The filter inside the diversion pipe 503 can prevent dust from entering the high-pressure air pump 107 through the diversion pipe 503 and causing damage.

[0035] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 1, in this embodiment, the gas inside the pushing airbag 104 is transmitted to the inside of the outer expansion body 200 through the second electronic control valve 201, so that the outer expansion body 200 expands and wraps the positioned plastic mold, thereby blocking the dust generated by the vibration during the vibration of the plastic mold and avoiding the dust from spreading and causing pollution.

[0036] Example 3 Considering the varying sizes, lengths, and widths of plastic molds, while the lower part of some longer molds can be limited and fixed using the airbag 104 and positioning plate 105, the upper part lacks support and limitation. This results in longer molds being more prone to stronger shaking and instability during vibration. To address these technical problems, the following technical solution is proposed: like Figures 7-8 As shown, the inner wall of the outer expansion body 200 is integrally formed with an inner expansion bladder 300, and the interior of the inner expansion bladder 300 is filled with electrorheological fluid 301.

[0037] Specifically, during use, when the outer expansion body 200 expands, the inner expansion bladder 300 expands along with it. After the outer expansion body 200 expands, it provides initial support for the longer mold. The electrorheological fluid 301 inside the inner expansion bladder 300 is compressed into a flat shape. Simultaneously, by energizing the electrorheological fluid 301, it hardens. After hardening inside the inner expansion bladder 300, the electrorheological fluid 301 provides further support to the plastic mold in contact with the outer expansion body 200, ensuring the stability of the longer plastic mold during vibration.

[0038] Furthermore, the inner wall of the upper support 102 is provided with multiple movable through holes, and multiple positioning rods 400 are fixedly connected to the outside of the positioning plate 105. The positioning rods 400 are inserted into the movable through holes, and the inner wall of the movable through holes and the outer wall of the positioning rods 400 are both set as rough surfaces.

[0039] Specifically, the movable through hole can be used to guide the positioning plate 105 in conjunction with the positioning rod 400. At the same time, the hardened electrorheological fluid 301 can be supported by the positioning rod 400 as a support point when it is supported.

[0040] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 2, in this embodiment, when the expanded outer expansion body 200 covers the dust of the long test mold, it can also provide preliminary support above the long plastic test mold. After providing preliminary support, the electrorheological fluid 301 can be further hardened by energizing the electrorheological fluid 301 to form a further hardened support.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete vibration table for testing, comprising a base (100), wherein a plurality of vibration springs (101) are fixedly connected to the base (100), and an upper bearing seat (102) is fixedly connected to the top of each vibration spring (101), characterized in that: The upper support (102) has a placement groove inside, and multiple push airbags (104) are fixedly connected inside the placement groove. A positioning plate (105) is fixedly connected to the outside of the push airbags (104). An air injection structure is connected to the outside of the push airbags (104). A vibration motor (106) is installed at the bottom of the upper support (102). The air injection structure includes a high-pressure air pump (107), which is fixedly installed on the base (100). The outlet of the high-pressure air pump (107) is connected to a diversion box (108). The outside of the diversion box (108) is connected to multiple diversion air supply pipes (109). The end of the diversion air supply pipe (109) away from the diversion box (108) is connected to a first electric control valve (110). The multiple first electric control valves (110) are respectively connected to multiple push air bags (104). The outside of the high-pressure air pump (107) is connected to an air inlet pipe (103). The end of the air inlet pipe (103) away from the high-pressure air pump (107) penetrates the outer wall of the upper support seat (102).

2. The concrete vibration table for testing and inspection according to claim 1, characterized in that: The outer surface of the push airbag (104) is integrally formed with an outer expansion body (200), and the outer surface of the outer expansion body (200) is connected to a second electric control valve (201). The end of the second electric control valve (201) away from the outer expansion body (200) is connected to the interior of the push airbag (104).

3. A concrete vibration table for testing and inspection according to claim 2, characterized in that: The inner wall of the outer expansion body (200) is integrally formed with an inner expansion bladder (300), and the interior of the inner expansion bladder (300) is filled with electrorheological fluid (301).

4. The concrete vibration table for testing and inspection according to claim 1, characterized in that: The upper support (102) has an integrally formed hollow groove (112) inside, and an air inlet (111) is opened inside the upper support (102). The air inlet (111) is connected to the hollow groove (112), and the air inlet pipe (103) connects the hollow groove (112) and the air inlet (111).

5. A concrete vibration table for testing and inspection according to claim 1, characterized in that: The upper support (102) has a dust collection inclined groove (501) and a dust inlet hole (502) inside. The dust collection inclined groove (501) and the dust inlet hole (502) are connected. The bottom wall of the upper support (102) placement groove has a plurality of connecting holes (500) connected to the dust collection inclined groove (501).

6. A concrete vibration table for testing and inspection according to claim 5, characterized in that: The dust inlet (502) is connected to a dust collection box (504) on the outside, and a diversion pipe (503) is connected to the outside of the dust collection box (504). The diversion pipe (503) is connected to the air inlet pipe (103), and a filter screen is provided on the inner wall of the diversion pipe (503).

7. A concrete vibration table for testing and inspection according to claim 1, characterized in that: The inner wall of the upper support (102) is provided with multiple movable through holes, and multiple positioning rods (400) are fixedly connected to the outside of the positioning plate (105), and the positioning rods (400) are inserted into the movable through holes.

8. A concrete vibration table for testing and inspection according to claim 7, characterized in that: The inner wall of the movable through hole and the outer wall of the positioning rod (400) are both set to rough surfaces.

9. A concrete vibration table for testing and inspection according to claim 1, characterized in that: The bottom of the positioning plate (105) is provided with multiple built-in slots, and a universal ball (600) is installed inside the built-in slot by a spring.

10. A concrete vibration table for testing and inspection according to claim 1, characterized in that: The positioning plate (105) has a battery cell (700) installed inside, and the battery cell (700) is electrically connected to an external power source through a wire.

Images