Gas content tester for building mortar

Abstract

The invention relates to the technical field of building material detection, in particular to a building mortar gas content tester. According to the technical scheme, the device comprises a measuring bowl, an extension edge, an upper cover, a buckle clamp, a knocking leveling assembly, a reciprocating pushing assembly and the like, wherein the extension edge is arranged at the upper part of the measuring bowl; the upper cover is connected with a plurality of clasps; the upper cover is connected with the measuring bowl through a plurality of clasps. Through the arrangement of a rotary telescopic rod of the knocking leveling assembly, the horizontal stability of the device can be realized, and a worker does not need to continuously find an area meeting the working requirement for detection; through cooperation of the reciprocating pushing assembly and the knocking and leveling assembly, the problems that in the prior art, a construction site is often lack of professional equipment such as a vibration table, a detection container is knocked through simple tools such as a rawhide hammer and a wooden stick, and thoroughness of bubble removal is difficult to guarantee are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of building materials testing, and particularly to an air content measuring instrument for building mortar. Background Art

[0002] In the construction industry, air content measuring instruments are widely used in the air content detection of concrete and mortar. By maintaining the pressure balance between an air chamber with a certain pressure and a container filled with test materials, the amount of pressure reduction in the air chamber is read, thereby determining the percentage of air in the test materials (such as concrete or mortar), and the value is directly displayed on the pressure gauge, providing an important basis for evaluating the quality of materials;

[0003] In the actual detection process, air content measurement is mainly divided into aggregate detection and mixed material detection. For aggregate detection, since the aggregate itself is solid, water needs to be added to convert it into a liquid state for measurement. To ensure the accuracy of detection, the water addition process needs to be carried out in excess until the water overflows from the liquid aggregate to exclude the excess air in the detection container;

[0004] However, the overflowing water flow often carries sediment, which is likely to accumulate at the corners of the detection container, making it difficult to wipe and clean completely, thereby affecting the airtightness of the container and ultimately possibly leading to inaccurate detection results;

[0005] On the other hand, in the mixed material detection, since the mixed material is in a paste state and contains air bubbles, the existence of air bubbles will interfere with the accurate measurement of the air content. To eliminate these air bubbles, the prior art usually uses a vibrating table to vibrate the mixed material in the detection container;

[0006] In actual construction sites, such as building construction sites, professional equipment such as vibrating tables is often lacking. Therefore, workers often use simple tools such as leather hammers and wooden sticks to knock on the detection container in an attempt to achieve the defoaming effect. This method is not only inefficient but also difficult to ensure the thoroughness of defoaming, thus affecting the accuracy and reliability of the detection. Summary of the Invention

[0007] In order to overcome the disadvantages that sediment is likely to accumulate at the corners of the detection container, affecting the airtightness of the container, and that in construction sites, simple tools such as leather hammers and wooden sticks are used to knock on the detection container, affecting the detection accuracy, the present invention provides an air content measuring instrument for building mortar.

[0008] Technical Solution: An air content measuring instrument for building mortar, comprising a measuring bowl, an extended edge, an upper cover, and a buckle clip; an extended edge is provided at the upper part of the measuring bowl; several buckle clips are connected to the upper cover; the upper cover is connected to the measuring bowl through several buckle clips;

[0009] It further includes an elastic ring, a cylinder body, support columns, a connecting ring, a knocking and leveling assembly, and a reciprocating pushing assembly; an elastic ring is fixedly connected to the extension edge, and the elastic ring on the upper surface contacts the upper cover; a connecting ring is fixedly connected to the measuring bowl, and the connecting ring is located below the buckle clip; the connecting ring is fixedly connected to the cylinder body, and the measuring bowl is located inside the cylinder body; several support columns are fixedly connected to the bottom of the cylinder body, and each support column is connected to the outer bottom surface of the measuring bowl; at least two knocking and leveling assemblies are connected to the bottom of the cylinder body; several through grooves are formed in the cylinder body, and the number and positions of the through grooves correspond to the number and positions of the knocking and leveling assemblies; a reciprocating pushing assembly is connected to the bottom of the cylinder body, and all the knocking and leveling assemblies are in contact with the reciprocating pushing assembly.

[0010] More preferably, the knocking and leveling assembly on the right part of the cylinder body includes a sliding strip, a moving strip, a convex part, a rotating telescopic rod, and a pulling part; the sliding strip is fixedly connected to the inner bottom surface of the cylinder body; the moving strip is inserted into the sliding strip; a convex part is arranged on the upper part of the moving strip, and a limit card is arranged on the convex part; the moving strip is rotationally connected to the rotating telescopic rod through a torsion spring, and a torsion spring lock is arranged on the rotating telescopic rod, and a fixed lock is arranged at the telescopic end of the rotating telescopic rod; a pulling part is arranged on the moving strip, and the pulling part passes through the through groove at the corresponding position.

[0011] More preferably, the reciprocating pushing assembly includes an air chamber, a sliding rod, a compression disc, an elastic member, a pull rope, a handle, an air guiding groove tank, a drainage part, a bottom box, a telescopic ring, and a top cover; the air guiding groove tank is fixedly connected to the inner bottom surface of the cylinder body; the air guiding groove tank is fixedly connected to the sliding rod; the cylinder body is fixedly connected to the air chamber, and the sliding rod is located inside the air chamber; an elastic member is fixedly connected to the air chamber; the elastic member is fixedly connected to the compression disc, and the compression disc is in interference fit with the inner ring surface of the air chamber; the sliding rod penetrates through the compression disc and is fixedly connected to the inner top surface of the air chamber; the compression disc is fixedly connected to the pull rope, and the pull rope penetrates through the air chamber and the cylinder body; the end of the pull rope located outside the cylinder body is fixedly connected to the handle;

[0012] The air guiding groove tank is provided with several drainage parts, and the number and positions of the drainage parts correspond to the number and positions of the rotating telescopic rods; each drainage part is communicated with a bottom box; each bottom box is fixedly connected with a telescopic ring; each telescopic ring is fixedly connected with a top cover, and each top cover is in contact with the rotating telescopic rod at the corresponding position.

[0013] More preferably, one end of each rotating telescopic rod close to the air chamber is made of a flexible material.

[0014] More preferably, it further includes a first connecting pipe, a second connecting pipe, a hollow air ring, a knocking component and a connecting piece; at least two hollow air rings are fixedly connected to the cylinder body; all the hollow air rings are communicated through the connecting piece; the lowermost hollow air ring is communicated with the first connecting pipe and the second connecting pipe; both the first connecting pipe and the second connecting pipe are communicated with the air chamber, and both the first connecting pipe and the second connecting pipe are located above the compression disc; the first connecting pipe is provided with a one-way intake valve, and the second connecting pipe is provided with a one-way exhaust valve; a plurality of knocking components are commonly connected to all the hollow air rings, and each knocking component contacts the measuring bowl.

[0015] More preferably, the knocking component at the foremost part of the cylinder body includes an elastic telescopic pipe and a knocking rod; each hollow air ring is communicated with an elastic telescopic pipe, and all the elastic telescopic pipes are distributed in a vertical straight line; all the elastic telescopic pipes are commonly fixedly connected to a knocking rod, and each knocking rod contacts the measuring bowl.

[0016] More preferably, it further includes a push rod, a top ring piece and an annular cavity; the elastic ring is provided with an annular cavity with a lower opening; at least two push rods distributed left and right are slidably connected to the extended edge, and each push rod penetrates through the extended edge, and a force applying piece is arranged at the lower part of each push rod; a limit card is arranged on each force applying piece, and at least two clamping grooves are arranged on the extended edge, and the number and position of the clamping grooves correspond to the number and position of the force applying pieces; all the push rods are commonly fixedly connected to a top ring piece, and the top ring piece is located inside the annular cavity.

[0017] More preferably, it further includes a conduit, a hollow air guiding box, a drain pipe and an elastic filtering part; at least one conduit is communicated with the uppermost hollow air ring; each conduit is communicated with a hollow air guiding box; each hollow air guiding box penetrates through the connecting ring and the extended edge and is communicated with the annular cavity; the extended edge is fixedly connected with a drain pipe, and the drain pipe penetrates through the extended edge and is communicated with the annular cavity; the inner ring surface outside the elastic ring is set as the elastic filtering part, and the elastic filtering part contacts the measuring bowl.

[0018] Compared with the prior art, the present invention has the following advantages: through the setting of the rotating telescopic rod of the knocking and leveling assembly of the present invention, the horizontal stability of the device can be realized, and it is not necessary for the staff to continuously search for areas meeting the working requirements for detection;

[0019] Through the cooperation of the reciprocating pushing assembly and the knocking and leveling assembly, the problem that in the prior art, construction sites often lack professional equipment such as vibration tables, and it is difficult to ensure the thoroughness of defoaming by using simple tools such as leather hammers and wooden sticks to knock the detection container is avoided;

[0020] Through the setting of the knocking rod, further vibration knocking is realized, and the defoaming work is further ensured.

[0021] Through the coordinated operation of the annular cavity, the elastic filtering part and the pushing ring piece, it is realized that there is no need for staff to wipe this device again, and there will be no sediment stuck at the fold angle of this device. Moreover, it avoids the problem that when the staff in the prior art uses tools to remove the floating foam, the liquid aggregate is not sufficient enough in the actual work, which will cause errors in the detection work of this device. Brief Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram disclosed for the air content measuring instrument for building mortar of the present invention;

[0023] Figure 2 It is a structural sectional view disclosed for the air content measuring instrument for building mortar of the present invention;

[0024] Figure 3 It is the first partial structural sectional view disclosed for the air content measuring instrument for building mortar of the present invention;

[0025] Figure 4 It is a structural sectional view of the reciprocating pushing assembly disclosed for the air content measuring instrument for building mortar of the present invention;

[0026] Figure 5 It is an enlarged view of Area A disclosed for the air content measuring instrument for building mortar of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the 205 - knocking rod disclosed for the air content measuring instrument for building mortar of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the 206 - connecting piece disclosed for the air content measuring instrument for building mortar of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the 201 - first connecting pipe and 202 - second connecting pipe disclosed for the air content measuring instrument for building mortar of the present invention;

[0030] Figure 9 It is an enlarged view of Area B disclosed for the air content measuring instrument for building mortar of the present invention;

[0031] Figure 10 It is an enlarged view of Area C disclosed for the air content measuring instrument for building mortar of the present invention;

[0032] Figure 11 It is a schematic partial structural diagram disclosed for the air content measuring instrument for building mortar of the present invention;

[0033] Figure 12 It is the second partial structural sectional view disclosed for the air content measuring instrument for building mortar of the present invention;

[0034] Figure 13The first state diagram of the expanded 3-elastic ring disclosed by the air content measuring instrument for building mortar of the present invention;

[0035] Figure 14 The second state diagram of the expanded 3-elastic ring disclosed by the air content measuring instrument for building mortar of the present invention;

[0036] Figure 15 The exploded view of the structure of the knocking and leveling assembly disclosed by the air content measuring instrument for building mortar of the present invention;

[0037] Figure 16 The working state diagram of the knocking and leveling assembly disclosed by the air content measuring instrument for building mortar of the present invention. The markings in the figure are: 1 - measuring bowl, 11 - extended edge, 2 - upper cover, 21 - buckle clip, 3 - elastic ring, 111 - sliding bar, 112 - moving bar, 113 - convex part, 114 - rotating telescopic rod, 1122 - pulling part, 1141 - fixed locking buckle, 101 - cylinder body, 1001 - through groove, 102 - support column, 103 - connecting ring, 104 - air chamber, 105 - sliding rod, 106 - compression disc, 107 - elastic member, 108 - pull rope, 109 - handle, 1010 - air entrainment groove tank, 10101 - drainage part, 1011 - bottom box, 1012 - telescopic ring, 1013 - top cover, 201 - first connecting pipe, 202 - second connecting pipe, 203 - middle air ring, 204 - elastic telescopic pipe, 205 - knocking rod, 206 - connecting piece, 301 - conduit, 302 - hollow air guiding box, 303 - pushing rod, 3031 - force applying piece, 304 - top moving ring piece, 305 - drain pipe, 31 - ring cavity, 32 - elastic filtering part. Detailed implementation mode

[0038] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as: above, below, upward, downward, etc. are used to describe the drawings and do not represent a limitation on the scope of the present invention defined by the appended claims. Any numerical labels such as: first or second are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0039] Example 1

[0040] An air content measuring instrument for building mortar, as Figures 1-16 shown, includes a measuring bowl 1, an extended edge 11, an upper cover 2, and buckle clips 21; an extended edge 11 is provided on the upper part of the measuring bowl 1; the upper cover 2 is connected with a plurality of buckle clips 21; the upper cover 2 is connected to the measuring bowl 1 through a plurality of buckle clips 21;

[0041] It further includes an elastic ring 3, a cylinder body 101, support columns 102, a connecting ring 103, a knocking and leveling component, and a reciprocating pushing component; an elastic ring 3 for enhancing sealing is fixedly connected to the extension edge 11, and the upper surface of the elastic ring 3 contacts the upper cover 2; a connecting ring 103 is fixedly connected to the measuring bowl 1, and the connecting ring 103 is located below the buckle 21; the connecting ring 103 is fixedly connected to the cylinder body 101, and the measuring bowl 1 is located inside the cylinder body 101; several support columns 102 are fixedly connected to the bottom of the cylinder body 101, and each support column 102 is connected to the outer bottom surface of the measuring bowl 1; at least two knocking and leveling components are connected to the bottom of the cylinder body 101; several through slots 1001 are formed in the cylinder body 101, and the number and positions of the through slots 1001 correspond to the number and positions of the knocking and leveling components; a reciprocating pushing component is connected to the bottom of the cylinder body 101, and all the knocking and leveling components are in contact with the reciprocating pushing component.

[0042] The knocking and leveling component on the right part of the cylinder body 101 includes a slide bar 111, a moving bar 112, a convex part 113, a rotating telescopic rod 114, and a pulling part 1122; the slide bar 111 is fixedly connected to the inner bottom surface of the cylinder body 101; the moving bar 112 is inserted into the slide bar 111; a convex part 113 is arranged on the upper part of the moving bar 112, and a limit card for unfolding and fixing is arranged on the convex part 113; the moving bar 112 is rotationally connected to the rotating telescopic rod 114 through a torsion spring, and a torsion spring lock is arranged on the rotating telescopic rod 114, and a fixing lock 1141 is arranged at the telescopic end of the rotating telescopic rod 114; a pulling part 1122 is arranged on the moving bar 112, and the pulling part 1122 passes through the through slot 1001 at the corresponding position.

[0043] The reciprocating pushing component includes an air chamber 104, a sliding rod 105, a compression disc 106, an elastic member 107, a pull rope 108, a handle 109, an air guiding groove tank 1010, a drainage part 10101, a bottom box 1011, a telescopic ring 1012, and a top cover 1013; the air guiding groove tank 1010 is fixedly connected to the inner bottom surface of the cylinder body 101; the air guiding groove tank 1010 is fixedly connected to the sliding rod 105; the cylinder body 101 is fixedly connected to the air chamber 104, and the sliding rod 105 is located inside the air chamber 104; the elastic member 107 is fixedly connected to the air chamber 104; the elastic member 107 is fixedly connected to the compression disc 106, and the compression disc 106 is in interference fit with the inner ring surface of the air chamber 104; the sliding rod 105 penetrates through the compression disc 106 and is fixedly connected to the inner top surface of the air chamber 104; the compression disc 106 is fixedly connected to the pull rope 108, and the pull rope 108 penetrates through the air chamber 104 and the cylinder body 101; one end of the pull rope 108 located outside the cylinder body 101 is fixedly connected to the handle 109;

[0044] The air-intake tank 1010 is provided with a number of drainage parts 10101, and the quantity and position of the drainage parts 10101 correspond to the quantity and position of the rotary telescopic rods 114; each drainage part 10101 is communicated with a bottom box 1011; each bottom box 1011 is fixedly connected with a telescopic ring 1012; each telescopic ring 1012 is fixedly connected with a top cover 1013, and each top cover 1013 is in contact with the rotary telescopic rod 114 at the corresponding position.

[0045] One end of each rotary telescopic rod 114 close to the air chamber 104 is made of flexible material, and the flexible setting of the head of the rotary telescopic rod 114 enables the rotary telescopic rod 114 not to deform the measuring bowl 1 during operation.

[0046] When this device is in use, all the fasteners 21 are loosened, and the staff removes the upper cover 2. If the material to be detected is aggregate, the staff first puts the aggregate into the measuring bowl 1, and then pours the mixing water into the measuring bowl 1 in small amounts multiple times, so that the aggregate is soaked to become liquid aggregate for subsequent detection work. And each time the mixing water is added, the staff also needs to stir the liquid aggregate, so as to avoid the influence of air in the liquid aggregate on the detection accuracy.

[0047] When the measuring bowl 1 is filled with liquid aggregate, the staff adds an appropriate amount of mixing water to the measuring bowl 1, so that the overflow water of the liquid aggregate overflows from the measuring bowl 1. Then the staff wipes off the overflowed liquid aggregate, so as to ensure that the liquid aggregate loaded in the measuring bowl 1 is sufficient and there will be no air pockets during subsequent detection. Then the staff skims off the foam on the liquid surface of the liquid aggregate, and the preparation for the detection of the aggregate is completed. Then the staff reinstalls and fastens the upper cover 2, and then tightens the fasteners 21, and this device can detect the air content in the aggregate.

[0048] If the test sample is mixed material, after the upper cover 2 is removed, a sufficient amount of mixed material is added to the measuring bowl 1. Then the staff places this device with the upper cover 2 removed on the vibrating table, and performs defoaming work on the mixed material in this device through the operation of the vibrating table, so as to eliminate the bubbles in the paste-like mixed material and make the detection work of the mixed material more accurate.

[0049] When the air content measuring instrument is in use, the device itself needs to be used on a flat tabletop or ground. In actual work, the air content measuring instrument is often used at actual construction sites (such as construction sites). The ground of the construction site is often not flat. In this way, the staff still needs to carry the air content measuring instrument and constantly look for areas that meet the working requirements for detection, which greatly reduces the convenience of the air content measuring instrument.

[0050] Therefore, the device is provided with a plurality of knocking and leveling components. After a sufficient amount of test materials (aggregates or mixed materials) are loaded in the device and the upper cover 2 is fastened and fixed, if the working table or the ground of the device is uneven, taking the knocking and leveling component on the right side of the device as an example, the staff pinches the pulling part 1122 and applies force to the moving bar 112, thereby pulling the moving bar 112 toward the through slot 1001 at the corresponding position until the protrusion 113 contacts the inner wall of the cylinder 101, and the protrusion 113 limit card is inserted into the through slot 1001 at the corresponding position, and the moving bar 112 drives the connected rotating telescopic rod 114 to move when moving, and when the protrusion 113 contacts the inner wall of the cylinder 101, the rotating telescopic rod 114 is also completely pulled out of the cylinder 101, and then the staff pulls the rotating telescopic rod 114 to make it flat. Figure 16 The torsion spring lock is then pressed to keep the rotating telescopic rod 114 in a vertical state, and then the same operation is performed on other positions by tapping the leveling components.

[0051] In this way, the plurality of rotating telescopic rods 114 are in a vertical state. Then, the staff pulls the telescopic part of the rotating telescopic rod 114 at the corresponding position according to the actual situation of the table or the ground. After the telescopic part of the rotating telescopic rod 114 at the corresponding position is pulled to a suitable position, the staff rotates the fixing lock 1141 to fix the pulled telescopic part. In this way, the horizontal stability of the device can be achieved, and the staff does not need to constantly find an area that meets the work requirements for detection;

[0052] In actual work, when defoaming the mixed materials, if the device is used directly at the construction site, the construction site often lacks professional equipment such as vibration tables, so the workers often use simple tools such as leather hammers and wooden sticks to knock on the detection container to try to achieve the defoaming effect. This approach is not only inefficient, but also difficult to ensure the thoroughness of defoaming.

[0053] Therefore, the device is provided with a reciprocating driving assembly. When the device is used to detect the mixing material, after the staff adds a sufficient amount of the mixing material into the measuring bowl 1, the staff can hold the handle 109 and apply force to pull the handle 109. When the handle 109 is pulled, the pull rope 108 is stretched and moved. The pull rope 108 pulls the connected compression disk 106, so that the compression disk 106 moves downward. When the compression disk 106 moves, the elastic member 107 is stretched, so that the elastic member 107 generates a restoring elastic force.

[0054] And due to the setting of the compression disc 106, the compression disc 106 divides the air chamber 104 into an upper cavity and a lower cavity. When the compression disc 106 moves, it compresses the air in the lower cavity of the air chamber 104. The compressed air sequentially enters the air cavity surrounded by the bottom box 1011, the telescopic ring 1012 and the top cover 1013 from the air guide groove tank 1010 and the drainage part 10101. When the compressed air enters the air cavity, it will squeeze the telescopic ring 1012 to expand. The expansion of the telescopic ring 1012 pushes the top cover 1013 to move upward, and abuts against the rotating telescopic rod 114.

[0055] Since the rotating telescopic rod 114 is rotationally connected to the moving strip 112 through a torsion spring, when the rotating telescopic rod 114 is abutted by the top cover 1013, it will rotate towards the measuring bowl 1. At this time, the rotating telescopic rod 114 will knock on the bottom of the measuring bowl 1.

[0056] After that, the staff releases the force applied to the handle 109. Under the reset elastic force of the elastic member 107, the compression disc 106 is pulled back to its original position. In this way, the top cover 1013 will also return to its original position. After the rotating telescopic rod 114 loses the abutment of the top cover 1013, under the reset torsion force of the torsion spring, the rotating telescopic rod 114 will also return to its original position. In this way, the rotating telescopic rod 114 completes a knocking cycle. After that, the staff only needs to continuously pull the handle 109, and the rotating telescopic rod 114 can continuously vibrate and knock the mixing material in the measuring bowl 1, so as to realize the defoaming work of the mixing material, avoiding the problem that in the prior art, the construction site often lacks professional equipment such as vibrating tables, and it is difficult to ensure the thoroughness of defoaming by using simple tools such as leather hammers and wooden sticks to knock the test containers.

[0057] Embodiment 2

[0058] On the basis of Embodiment 1, as Figures 6-10 shown,

[0059] It further includes a first connecting pipe 201, a second connecting pipe 202, a hollow air ring 203, a knocking component and a connecting piece 206; at least two hollow air rings 203 are fixedly connected to the cylinder body 101; all the hollow air rings 203 are communicated through the connecting piece 206; the lowermost hollow air ring 203 is communicated with the first connecting pipe 201 and the second connecting pipe 202; both the first connecting pipe 201 and the second connecting pipe 202 are communicated with the air chamber 104, and both the first connecting pipe 201 and the second connecting pipe 202 are located above the compression disc 106; the first connecting pipe 201 is provided with a one-way intake valve, and the second connecting pipe 202 is provided with a one-way exhaust valve; all the hollow air rings 203 are commonly connected with a plurality of knocking components, and each knocking component is in contact with the measuring bowl 1.

[0060] The knocking components at the foremost part of the cylinder body 101 include elastic telescopic tubes 204 and knocking rods 205; each hollow air ring 203 is connected to an elastic telescopic tube 204, and all the elastic telescopic tubes 204 are distributed in a vertical straight line; all the elastic telescopic tubes 204 are fixedly connected to a knocking rod 205 together, and each knocking rod 205 contacts the measuring bowl 1.

[0061] Furthermore, for the gas content measuring instrument used in actual work, the mass of the mixed material to be processed is between six liters and nine liters, and the measuring bowl 1 is usually set as a long cylindrical shape, making it very difficult to achieve complete defoaming only by knocking with a vibrating table or other objects.

[0062] Therefore, in order to further ensure the completion of the defoaming work of the mixed material, several knocking components are also provided in this device. When the staff pulls the handle 109 to drive the compression disc 106 to move, driving all the rotating telescopic rods 114 to knock the bottom of the measuring bowl 1, when the compression disc 106 moves downward, the upper cavity space of the air chamber 104 becomes larger, forming a negative pressure suction force. The negative pressure suction force passes through the one-way intake valve provided in the first connecting pipe 201 to suck the air in each hollow air ring 203, elastic telescopic tube 204 and connecting piece 206, so that the adsorbed air enters the upper cavity of the air chamber 104.

[0063] In this way, all the elastic telescopic tubes 204 will contract after losing the air support. The elastic telescopic tubes 204 expand and contract, pulling the corresponding connected knocking rod 205 to move away from the measuring bowl 1. Then, when the staff releases the force on the handle 109, when the elastic member 107 returns to its original position with elastic force and pulls the compression disc 106 to move upward and reset, the compression disc 106 compresses the adsorbed air to form a high-pressure reflux air. The reflux air breaks through the one-way outlet valve provided in the second connecting pipe 202 and then refluxes to each hollow air ring 203, elastic telescopic tube 204 and connecting piece 206. In this way, each elastic telescopic tube 204 resets and expands, pushing the corresponding connected knocking rod 205 to reset, and at this time the knocking rod 205 knocks on the outer side of the measuring bowl 1. In this way, a knocking cycle is completed. Then, with the continuous repetition of pulling the handle 109, all the knocking rods 205 can continuously vibrate and knock the mixed material in the measuring bowl 1, so as to further ensure the progress of the defoaming work.

[0064] Embodiment 3

[0065] On the basis of Embodiment 2, as Figures 11-14 shown,

[0066] It further includes a push rod 303, a top ring 304 and an annular cavity 31; the elastic ring 3 is provided with an annular cavity 31 with a lower opening; at least two push rods 303 distributed left and right are slidably connected to the extension edge 11, and each push rod 303 penetrates through the extension edge 11, and a force application piece 3031 is arranged at the lower part of each push rod 303; a limit card is arranged on each force application piece 3031, and at least two card slots are arranged on the extension edge 11, and the number and positions of the card slots correspond to the number and positions of the force application pieces 3031; all the push rods 303 are fixedly connected to a top ring 304 together, and the top ring 304 is located inside the annular cavity 31.

[0067] It further includes a conduit 301, a hollow air guide box 302, a drain pipe 305 and an elastic filter part 32; at least one conduit 301 is communicated with the middle air ring 203 at the uppermost part; each conduit 301 is communicated with a hollow air guide box 302; each hollow air guide box 302 penetrates through the connecting ring 103 and the extension edge 11 and is communicated with the annular cavity 31; the drain pipe 305 is fixedly connected to the extension edge 11, and the drain pipe 305 penetrates through the extension edge 11, and the drain pipe 305 is communicated with the annular cavity 31; the inner ring surface on the outer side of the elastic ring 3 is set as an elastic filter part 32 for filtering sediment, and the elastic filter part 32 is in contact with the measuring bowl 1.

[0068] Before the device is used, the drain pipe 305 is first connected to an external liquid collection box. In the prior art, after the liquid aggregate fills the measuring bowl 1, the staff adds an appropriate amount of mixing water to the measuring bowl 1, so that the liquid aggregate overflows from the measuring bowl 1. Then the staff wipes the overflow water of the liquid aggregate clean.

[0069] So that there is no extra air left in the measuring bowl 1 during subsequent detection work. In order to make the measuring bowl 1 and the upper cover 2 fit tightly, the measuring bowl 1 is provided with an extension edge 11, and the extension edge 11 is set lower than the upper opening of the measuring bowl 1, which causes a fold angle between the measuring bowl 1 and the extension edge 11.

[0070] However, part of the sediment will be carried in the overflow water, and the sediment will get stuck at the fold angle between the measuring bowl 1 and the extension edge 11, which makes it difficult for the staff to wipe and prone to mistakes in the wiping work. The sediment adheres to the detection container, resulting in the inability to maintain airtightness subsequently and affecting the detection result.

[0071] Therefore, the device is provided with an elastic ring 3. On the one hand, the elastic setting of the elastic ring 3 can play the role of a sealing ring. On the other hand, when the staff needs to wipe the overflow water, the staff simultaneously pushes all the force application pieces 3031 upward until the limit cards arranged on the force application pieces 3031 are inserted into the card slots at the corresponding positions. The force application pieces 3031 drive the push rods 303 to move upward, and the push rods 303 drive the connected top ring 304 to move upward. And at this time, the limit cards are inserted into the corresponding card slots, so that the top ring 304 slides down again.

[0072] Since the pushing ring piece 304 is arranged in the annular cavity 31 of the elastic ring 3, when the pushing ring piece 304 moves upward, it contacts the inner top surface of the elastic ring 3, causing the elastic ring 3 to change from Figure 12 the initial state to Figure 14 the unfolded state. In this way, the elastic ring 3 is higher than the upper opening of the measuring bowl 1, and at this time, the elastic ring 3 surrounds the upper opening of the measuring bowl 1. In this way, when the staff adds an excessive amount of mixing water to the liquid aggregate, the excess water in the liquid aggregate will not overflow under the blockage of the elastic ring 3 in the unfolded state. The inner ring surface of the outer side of the elastic ring 3 is set as the elastic filtering part 32, and the annular cavity 31 is communicated with the middle air ring 203 at the uppermost part through the conduit 301 and the hollow air guide box 302. When the staff pulls the handle 109 to drive the compression disc 106 to move downward, the air inside the middle air ring 203 will be pumped away, causing a negative pressure suction force to be generated inside each middle air ring 203.

[0073] Therefore, when the annular cavity 31 is communicated with the middle air ring 203 at the uppermost part, if the middle air ring 203 at the uppermost part is in a negative pressure state, the middle air ring 203 at the uppermost part will suck away the air inside the annular cavity 31.

[0074] So when the staff adds an excessive amount of mixing water to the liquid aggregate and the excess water in the liquid aggregate is blocked by the elastic ring 3 in the unfolded state, the staff pulls the handle 109. At this time, the air inside the annular cavity 31 will be pumped away to form a negative pressure state, generating a negative pressure suction force. At this time, the elastic ring 3 is in the unfolded state, blocking the excess water, and the excess water directly contacts the elastic filtering part 32. Under the negative pressure suction force of the annular cavity 31, the excess water can penetrate through the elastic filtering part 32 to suck away the excess water.

[0075] The excess water penetrates through the elastic filtering part 32 and enters the annular cavity 31 to become the suction water, while the sediment in the excess water is blocked outside the elastic filtering part 32. After the suction water enters the annular cavity 31, it will flow to the external liquid collection box through the drain pipe 305. Moreover, the upper chamber of the hollow air guide box 302 is higher than the upper surface of the extension edge 11, so the suction water will not flow into the hollow air guide box 302.

[0076] When the liquid aggregate is flush with the upper opening of the measuring bowl 1, the staff releases the force applied to the handle 109, then releases the insertion of all the limit cards into the corresponding card slots, and presses the force application piece 3031 to move downward, so that the pushing ring piece 304 is reset. At this time, the elastic ring 3 starts to reset, and during the reset process of the elastic ring 3, the upper opening of the measuring bowl 1 will rub against the elastic filtering part 32, so that the sediment can be scraped off and fall into the liquid aggregate in the measuring bowl 1.

[0077] Thus, there is no need for staff to wipe the device again, and no sediment will get stuck at the corners of the device.

[0078] Furthermore, when dealing with liquid aggregate, the staff also needs to skim the foam on the liquid surface of the liquid aggregate. However, in the prior art, it is usually the staff who uses common tools such as spoons to remove the foam. But in actual work, since the removal work is carried out after the liquid aggregate is sufficient in the measuring bowl 1, when the staff uses tools to remove the foam, it is inevitable to take away some moisture of the liquid aggregate, which results in the insufficient amount of the liquid aggregate in actual work and causes errors in the detection work of this device.

[0079] Therefore, when the negative pressure suction in the annular cavity 31 sucks the excess moisture through the elastic filtering part 32, because the liquid surface of the liquid aggregate is inside the elastic ring 3 in the unfolded state, the negative pressure suction can also make the foam on the liquid surface of the liquid aggregate move towards the elastic filtering part 32 until it adheres to the elastic filtering part 32. When the unfolded state elastic ring 3 resets, the adhered foam will also be scraped off and fall back into the liquid aggregate in the measuring bowl 1. And under the action of the negative pressure suction, the air bubbles in the foam are eliminated, and the foam falling back into the liquid aggregate will no longer contain air.

[0080] In this way, it avoids the problem in the prior art that the staff uses common tools such as spoons to remove the foam. But in actual work, since the removal work is carried out after the liquid aggregate is sufficient in the measuring bowl 1, when the staff uses tools to remove the foam, it is inevitable to take away some moisture of the liquid aggregate, which results in the insufficient amount of the liquid aggregate in actual work and causes errors in the detection work of this device.

[0081] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes may be made therein without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An air content measuring instrument for building mortar, comprising a measuring bowl (1), an extended edge (11), an upper cover (2), and clamping clips (21); an extended edge (11) is arranged on the upper part of the measuring bowl (1); several clamping clips (21) are connected to the upper cover (2); the upper cover (2) is connected to the measuring bowl (1) through several clamping clips (21); it is characterized in that: It further includes an elastic ring (3), a cylinder body (101), a support column (102), a connecting ring (103), a knocking and leveling assembly, and a reciprocating pushing assembly; the extension edge (11) is fixedly connected with the elastic ring (3), and the upper surface of the elastic ring (3) contacts the upper cover (2); the measuring bowl (1) is fixedly connected with the connecting ring (103), and the connecting ring (103) is located below the buckle clip (21); the connecting ring (103) is fixedly connected with the cylinder body (101), and the measuring bowl (1) is located inside the cylinder body (101); the bottom of the cylinder body (101) is fixedly connected with a plurality of support columns (102), and each support column (102) is connected to the outer bottom surface of the measuring bowl (1); at least two knocking and leveling assemblies are connected to the bottom of the cylinder body (101); a plurality of through grooves (1001) are formed in the cylinder body (101), and the number and positions of the through grooves (1001) correspond to the number and positions of the knocking and leveling assemblies; a reciprocating pushing assembly is connected to the bottom of the cylinder body (101), and all the knocking and leveling assemblies are in contact with the reciprocating pushing assembly.

2. The air content measuring instrument for building mortar according to claim 1, characterized in that, The knocking and leveling assembly on the right part of the cylinder body (101) includes a slide bar (111), a moving bar (112), a convex part (113), a rotating telescopic rod (114), and a pulling part (1122); the inner bottom surface of the cylinder body (101) is fixedly connected with the slide bar (111); the slide bar (111) is inserted with the moving bar (112); a convex part (113) is arranged on the upper part of the moving bar (112), and a limit card is arranged on the convex part (113); the moving bar (112) is rotatably connected with the rotating telescopic rod (114) through a torsion spring, and a torsion spring lock is arranged on the rotating telescopic rod (114), and a fixed lock (1141) is arranged at the telescopic end of the rotating telescopic rod (114); a pulling part (1122) is arranged on the moving bar (112), and the pulling part (1122) passes through the through groove (1001) at the corresponding position.

3. The air content measuring instrument for building mortar according to claim 1, characterized in that it reciprocates The driving component includes an air chamber (104), a sliding rod (105), a compression disc (106), an elastic member (107), a pull rope (108), a handle (109), an air guide groove tank (1010), a drainage part (10101), a bottom box (1011), a telescopic ring (1012) and a top cover (1013); the inner bottom surface of the cylinder body (101) is fixedly connected with an air guide groove tank (1010); the air guide groove tank (1010) is fixedly connected with a sliding rod (105); the cylinder body (101) is fixedly connected with an air chamber (104), and the sliding rod (105) is located inside the air chamber (104); the air chamber (104) is fixedly connected with an elastic member (107); the elastic member (107) is fixedly connected with a compression disc (106), and the compression disc (106) is in interference fit with the inner ring surface of the air chamber (104); the sliding rod (105) penetrates through the compression disc (106) and is fixedly connected with the inner top surface of the air chamber (104); the compression disc (106) is fixedly connected with a pull rope (108), and the pull rope (108) penetrates through the air chamber (104) and the cylinder body (101); the end of the pull rope (108) located outside the cylinder body (101) is fixedly connected with a handle (109); the air guide groove tank (1010) is provided with a plurality of drainage parts (10101), and the number and positions of the drainage parts (10101) correspond to the number and positions of the rotating telescopic rods (114); each drainage part (10101) is communicated with a bottom box (1011); each bottom box (1011) is fixedly connected with a telescopic ring (1012); each telescopic ring (1012) is fixedly connected with a top cover (1013), and each top cover (1013) is in contact with the rotating telescopic rod (114) at the corresponding position.

4. A gas content measuring instrument for building mortar according to claim 3, characterized in that, One end of each rotating telescopic rod (114) close to the air chamber (104) is made of a flexible material.

5. The air content measuring instrument for building mortar according to claim 4, characterized in that, It further includes a first connecting pipe (201), a second connecting pipe (202), a hollow air ring (203), a knocking component and a connecting piece (206); the cylinder body (101) is fixedly connected with at least two hollow air rings (203); all the hollow air rings (203) are communicated through the connecting piece (206); the lowermost hollow air ring (203) is communicated with the first connecting pipe (201) and the second connecting pipe (202); the first connecting pipe (201) and the second connecting pipe (202) are both communicated with the air chamber (104), and the first connecting pipe (201) and the second connecting pipe (202) are both located above the compression disc (106); the first connecting pipe (201) is provided with a one-way intake valve, and the second connecting pipe (202) is provided with a one-way exhaust valve; all the hollow air rings (203) are commonly connected with a plurality of knocking components, and each knocking component is in contact with the measuring bowl (1).

6. The air content measuring instrument for building mortar according to claim 5, characterized in that, The knocking component at the foremost part of the cylinder body (101) includes an elastic telescopic tube (204) and a knocking rod (205); each hollow air ring (203) is communicated with an elastic telescopic tube (204), and all the elastic telescopic tubes (204) are distributed in a vertical straight line; all the elastic telescopic tubes (204) are fixedly connected to a knocking rod (205) together, and each knocking rod (205) contacts the measuring bowl (1).

7. An air content measuring instrument for building mortar according to claim 6, characterized in that, It further includes a pushing rod (303), a pushing ring piece (304) and an annular cavity (31); the elastic ring (3) is provided with an annular cavity (31) with a lower opening; the extending edge (11) is slidably connected with at least two pushing rods (303) distributed left and right, and each pushing rod (303) penetrates through the extending edge (11), and a force applying piece (3031) is arranged at the lower part of each pushing rod (303); a limit card is arranged on each force applying piece (3031), and at least two clamping grooves are arranged on the extending edge (11), and the number and positions of the clamping grooves correspond to the number and positions of the force applying pieces (3031); all the pushing rods (303) are fixedly connected to a pushing ring piece (304) together, and the pushing ring piece (304) is located inside the annular cavity (31).

8. A measuring instrument for the air content of building mortar according to claim 7, characterized in that, It further includes a conduit (301), a hollow air guiding box (302), a drain pipe (305) and an elastic filtering part (32); at least one conduit (301) is communicated with the uppermost hollow air ring (203); each conduit (301) is communicated with a hollow air guiding box (302); each hollow air guiding box (302) penetrates through the connecting ring (103) and the extending edge (11) and is communicated with the annular cavity (31); the extending edge (11) is fixedly connected with a drain pipe (305), and the drain pipe (305) penetrates through the extending edge (11), and the drain pipe (305) is communicated with the annular cavity (31); the inner ring surface on the outer side of the elastic ring (3) is set as the elastic filtering part (32), and the elastic filtering part (32) contacts the measuring bowl (1).

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