CN209784022U - Prefabricated device that contains crack test piece - Google Patents
Prefabricated device that contains crack test piece Download PDFInfo
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- CN209784022U CN209784022U CN201920097786.1U CN201920097786U CN209784022U CN 209784022 U CN209784022 U CN 209784022U CN 201920097786 U CN201920097786 U CN 201920097786U CN 209784022 U CN209784022 U CN 209784022U
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- cover plate
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- test piece
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Abstract
The utility model relates to a compression test's class rock test piece mould, specific prefabricated equipment that contains crack test piece that says so, including front mould frame, back mould frame, upper cover plate and lower cover plate, front mould frame, back mould frame structure are the same, and front mould frame, back mould frame are the U-shaped, and front mould frame, back mould frame can splice into square post, and square post inside forms square cavity, and the middle part of front mould frame, back mould frame is equipped with the rectangular channel that can locate the rectangle steel sheet between front mould frame, back mould frame to wearing; the upper cover plate and the lower cover plate are both square step plates in the same structure, the upper cover plate is used for sealing the upper end of a square column, the lower cover plate is used for sealing the lower end of the square column, two opposite sides of the upper cover plate and the lower cover plate are respectively and fixedly connected with a support plate, the middle part of the support plate is provided with a through hole, and the side edges of the front mold frame and the rear mold frame are provided with first threaded holes corresponding to the through holes; the utility model discloses set up the line of cut, cut the separation to the contact surface of test piece and mould, improve drawing of patterns efficiency to prevent that the test piece from collapsing the angle or the surface produces crackle.
Description
Technical Field
The utility model relates to a compression test's class rock test piece mould, specific prefabricated device that contains crack test piece that says so.
Background
The jointed rock mass is a complex medium widely encountered in underground engineering, and the traditional design and calculation theory and method based on the homogeneous continuous medium mechanical method are difficult to meet the increasingly complex engineering construction requirements and are not compatible with the increasingly improved engineering design standard. By preparing a rock brittle similar model material, prefabricating the interrupted fracture on the basis of the model material becomes an important means for discussing the strength deformation damage and the crack propagation characteristics of the interrupted fracture rock brittle material.
When a sample is demoulded, a die in the prior art is easy to cause the corner collapse of the sample or the surface crack, so that the quality of the sample is influenced, and the micro crack generated on the surface directly influences test data, thereby generating adverse effect on the test.
SUMMERY OF THE UTILITY MODEL
In order to compensate the not enough of prior art, the utility model provides a mould for crack class rock test piece, it is inconvenient that the test piece drawing of patterns among the solution prior art easily causes the test piece to collapse the angle or the surface produces crackle scheduling problem.
The utility model provides a technical scheme that its technical problem adopted is: the utility model discloses a prefabrication device of crack test piece, including front mould frame, back mould frame, upper cover plate and lower cover plate, front mould frame, back mould frame structure are the same, and front mould frame, back mould frame are the U-shaped, and front mould frame, back mould frame can splice into square post, and square cavity is formed to square post inside, and the middle part of front mould frame, back mould frame is equipped with the rectangular channel that can locate the rectangle steel sheet between front mould frame, back mould frame; the upper cover plate and the lower cover plate are both square step plates in the same structure, the upper cover plate is used for sealing the upper end of a square column, the lower cover plate is used for sealing the lower end of the square column, two opposite sides of the upper cover plate and the lower cover plate are respectively and fixedly connected with a support plate, the middle part of the support plate is provided with a through hole, the side edges of the front mold frame and the rear mold frame are provided with first threaded holes corresponding to the through holes, and a fastening bolt penetrates into the through hole and is in threaded connection with the first threaded holes;
the upper end surface and the lower end surface of the front mold frame and the rear mold frame are respectively provided with a sliding chute, the sliding chutes of the front mold frame and the rear mold frame are spliced to form an annular shape, a sliding column is respectively and slidably mounted in the sliding chutes of the upper end surface and the lower end surface, the two sliding columns are connected through a U-shaped handle, one end of the U-shaped handle is fixedly connected with the sliding column of the upper end surface, the other end of the U-shaped handle is fixedly connected with the sliding column of the lower end surface, and the sliding column can slide in the spliced annular sliding chute; the sliding columns are fixedly connected with a supporting plate, a first cutting line is fixedly connected between the supporting plates of the upper sliding column and the lower sliding column, and the first cutting line is attached to the inner side wall of the front mold frame or the inner side wall of the rear mold frame; and a kidney-shaped groove is formed in one corner of the upper cover plate and the lower cover plate and used for avoiding the sliding column.
Preferably, the first cut line is a steel cord, and the steel cord is stranded by a plurality of layers of steel wires.
Preferably, the bottom of the sliding groove is arranged into a wave shape, and the bulges in the sliding grooves at the upper ends of the front mold frame and the rear mold frame are arranged in one-to-one correspondence with the concave parts of the sliding grooves at the lower ends of the front mold frame and the rear mold frame.
Preferably, the sliding column is in contact with one end of the bottom of the sliding chute, and a ball is arranged at the end of the sliding column in a rolling mode.
Preferably, the cross section of the U-shaped handle is circular, a sleeve is sleeved on the outer ring of the middle part of the U-shaped handle, and the sleeve is in clearance fit with the U-shaped handle.
The utility model has the advantages as follows:
The utility model discloses after demolising upper cover plate and lower apron, hold the U-shaped handle and stimulate along the module outer lane, the slip post slides along annular spout, and the first cutting line between two slip posts cuts the separation to the contact surface of test piece and mould, avoids the small crack of its surface production of direct drawing of patterns to make things convenient for the drawing of patterns of test piece.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at D;
FIG. 3 is a front view of embodiment 1 of the present invention with the upper and lower cover plates removed;
3 FIG. 3 4 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 3 3; 3
FIG. 5 is a schematic structural view of a rear mold frame;
FIG. 6 is a schematic view of the structure of the upper and lower cover plates
FIG. 7 is a partial enlarged view of FIG. 1 at E
FIG. 8 is a cross-sectional view B-B of FIG. 3;
Fig. 9 is a partial enlarged view of fig. 8 at F.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further described below with reference to the following embodiments.
example 1
as shown in fig. 1 to 6, the prefabricating device for a test piece with cracks of the utility model comprises a front mold frame 11, a rear mold frame 12, an upper cover plate 13 and a lower cover plate 14, wherein the front mold frame 11 and the rear mold frame 12 have the same structure, the front mold frame 11 and the rear mold frame 12 are both in a U shape, the front mold frame 11 and the rear mold frame 12 can be spliced into a square column, a square cavity is formed inside the square column, and a rectangular groove 121 for allowing a rectangular steel sheet to penetrate between the front mold frame 11 and the rear mold frame 12 is arranged in the middle of the front mold frame 11 and the rear mold frame 12; the upper cover plate 13 and the lower cover plate 14 are both square step plates with the same structure, the upper cover plate 13 is used for sealing the upper end of a square column, the lower cover plate 14 is used for sealing the lower end of the square column, two opposite sides of the upper cover plate 13 and the lower cover plate 14 are respectively fixedly connected with a support plate 4, the middle part of the support plate 4 is provided with a through hole 41, the side edges of the front mold frame 11 and the rear mold frame 12 are provided with a first threaded hole 42 corresponding to the through hole 41, a fastening bolt penetrates through the through hole 41 and is in threaded connection with the first threaded hole 42, after the front mold frame 11 and the rear mold frame 12 are spliced, the lower cover plate 14 is firstly used for sealing the lower end, a mixture of gypsum and water is injected into a formed square column cavity, after full vibration is carried out, a little grease is smeared on a rectangular steel sheet, and the grease is penetrated through the rectangular grooves 3 of the; installing a lower cover plate 14; before the test piece is not completely solidified, the rectangular steel sheet is pulled out, and the mold is removed.
The upper end surfaces and the lower end surfaces of the front mold frame 11 and the rear mold frame 12 are respectively provided with a sliding chute 5, the sliding chutes 5 of the front mold frame 11 and the rear mold frame 12 are spliced to form a ring, a sliding column 51 is respectively installed in the sliding chutes 5 of the upper end surface and the lower end surface in a sliding manner, the two sliding columns 51 are connected through a U-shaped handle 52, one end of the U-shaped handle 52 is fixedly connected with the sliding column 51 of the upper end surface, the other end of the U-shaped handle 52 is fixedly connected with the sliding column 51 of the lower end surface, and the sliding column 51 can slide in the spliced ring-shaped sliding chute 5; a support plate 53 is fixedly connected to each sliding column 51, a first cutting line 54 is fixedly connected between the support plates 53 of the upper sliding column 51 and the lower sliding column 51, and the first cutting line 54 is attached to the inner side wall of the front mold frame 11 or the rear mold frame 12; and a kidney-shaped groove 55 is formed in one corner of the upper cover plate 13 and the lower cover plate 14, and the kidney-shaped groove 55 is used for avoiding the sliding column 51. After the upper cover plate 13 and the lower cover plate 14 are removed, the U-shaped handle 52 is held by hand and pulled along the outer ring of the module, the sliding columns 51 slide along the annular sliding chute 5, and the first cutting line 54 between the two sliding columns 51 cuts and separates the contact surface of the test piece and the mold so as to prevent the test piece from corner collapse or surface cracks.
Specifically, the first cutting line 54 is a steel wire rope, and the steel wire rope is stranded by a plurality of layers of steel wires; the groove bottom of the sliding groove 5 is arranged into a wave shape, and the bulges 56 in the sliding groove 5 at the upper ends of the front mold frame 11 and the rear mold frame 12 are arranged corresponding to the concave parts 57 of the sliding groove 5 at the lower end. By utilizing the convex and concave structures on the surface of the steel wire rope and matching with the wave shape at the bottom of the sliding chute 5, the sliding column 51 fluctuates up and down when moving, the steel wire rope saw cuts the surface of the test piece in a reciprocating manner up and down, and the demolding efficiency is improved.
Specifically, a ball is arranged at the end of one end of the sliding column 51 contacting the bottom of the sliding chute 5 in a rolling manner; the U-shaped handle 52 is circular in cross section, a sleeve 58 is sleeved on the outer ring of the middle part of the U-shaped handle 52, and the sleeve 58 is in clearance fit with the U-shaped handle 52.
Specifically, a group of bolts are fixedly connected to the side edge of the front mold frame 11 contacting the rear mold frame 12, and the side edge of the rear mold frame 12 contacting the front mold frame 11 is provided with jacks 9 corresponding to the bolts one by one; the bolt is in clearance fit connection with the jack 9.
When the mold is used, as shown in fig. 1, fig. 3, fig. 5, and fig. 7-9, the front mold frame 11 and the rear mold frame 12 of the mold each include a vertical plate 111 and two side plates 112, the two side plates 112 are respectively fixedly connected to two sides of the vertical plate 111 and perpendicular to the vertical plate 111, a horizontally arranged dovetail groove 2 is respectively arranged at the upper edge and the lower edge of the outer side of each side plate 112, a slider 21 is respectively connected in the dovetail groove 2 of the two side plates 112 of the rear mold frame 12 in a sliding manner, the two sliders 21 are connected with each other through a second cutting line 22, and cutting grooves 23 which move to avoid the second cutting line 22 are respectively arranged at the side edges of the front mold frame 11 and the rear mold frame 12; two sliders 21 promote synchronous slip through driving piece 3 and by in the preceding framed 11 of back framed 12 internal slipping, driving piece 3 includes horizontal pole 31, and two pull rods 32 of horizontal pole 31 one side rotation installation, the pull rod 32 end sets up the screw thread, and every slider 21 one side all sets up second screw hole 211, and the axis of second screw hole 211 is parallel with dovetail 2, and two sliders 21 are connected in two pull rod 32 correspondences, and the equal screw-thread fit in corresponding second screw hole 211 in the pull rod 32 end. When the mold needs to be disassembled, the pull rods 32 are screwed on the corresponding slide blocks 21 in a one-to-one correspondence manner, and the second cutting lines 22 move along with the two slide blocks 21 by pulling or jacking between the cross rod 31 and the front mold frame 11, so that the upper cover plate 13 and the lower cover plate 14 are separated from the test piece by the second cutting lines 22, and the test piece is prevented from corner collapse or surface cracks.
the second cutting line 22 is made of iron wire, and the outer ring of the iron wire is rolled to form a group of annular grooves; the step column 6 is connected in one of the sliding blocks 21 in a sliding mode, one end of a second cutting line 22 penetrates through the sliding block 21 and is fixedly connected with one end of the step column 6, the second cutting line 22 and the step column 6 are coaxially arranged, a supporting spring 61 is sleeved on a cylinder body between a step of the step column 6 and the sliding block 21, the other end of the second cutting line 22 is fixedly connected with one end of a square column 62, the square column 62 and the second cutting line 22 are coaxially arranged and are connected with the other sliding block 21 opposite to each other in a sliding mode, a sliding rod 63 is fixedly connected to the other end of the square column 62, a wavy plate 64 is fixedly connected to one side of a side plate 112 corresponding to the square column 62, the wavy plate 64 is arranged in parallel to the dovetail groove 2, and the sliding rod 63; the outer ring of the sliding rod 63 is sleeved with the deep groove ball bearing 7, the inner ring of the deep groove ball bearing 7 is fixedly connected with the sliding rod 63, and the outer ring of the deep groove ball bearing 7 is connected to the wave surface of the wave-shaped plate 64 in a contact mode. Through the wave surface of wave shaped plate 64 for square column 62 is the horizontal slip when removing, and utilizes the annular groove structure on iron wire surface, saw cuts the upper and lower terminal surface of test piece, improves drawing of patterns efficiency.
The working principle of the utility model is as follows:
Firstly, splicing a front mold frame 11 and a rear mold frame 12 into a direction column, firstly, using a lower cover plate 14 to close the lower end, injecting a mixture of gypsum and water into a formed square column cavity, fully vibrating, smearing a little grease on a rectangular steel sheet, and penetrating the rectangular steel sheet into rectangular grooves 3 of the front mold frame 11 and the rear mold frame 12; installing a lower cover plate 14; before the test piece is not completely solidified, pulling out the rectangular steel sheet;
The second cutting line 22 moves along with the two sliding blocks 21 through the movement of the wave-shaped plate 64 and the wave surface of the wave-shaped plate 64 by hand pulling or jacking between the cross rod 31 and the front mold frame 11 through a jack, so that the square column 62 slides left and right when moving, and the upper end surface and the lower end surface of the test piece are sawed by utilizing the annular groove structure on the surface of the iron wire, so that the demolding efficiency is improved, and the test piece is prevented from corner collapse or surface cracks;
After the upper cover plate 13 and the lower cover plate 14 are removed, the U-shaped handle 52 is held by a hand to be pulled along the outer ring of the module, the sliding columns 51 slide along the annular sliding chute 5, and the first cutting line 54 between the two sliding columns 51 cuts and separates the contact surface of the test piece and the mold, so that the demolding of the test piece is completed.
while the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. the prefabricating device for the test piece with the crack is characterized by comprising a front mold frame (11), a rear mold frame (12), an upper cover plate (13) and a lower cover plate (14), wherein the front mold frame (11) and the rear mold frame (12) have the same structure, the front mold frame (11) and the rear mold frame (12) are both U-shaped, the front mold frame (11) and the rear mold frame (12) can be spliced into a square column, a square cavity is formed inside the square column, and a rectangular groove (121) capable of enabling a rectangular steel sheet to penetrate between the front mold frame (11) and the rear mold frame (12) is formed in the middle of the front mold frame (11) and the rear mold frame (12); the upper cover plate (13) and the lower cover plate (14) are both square step plates in the same structure, the upper cover plate (13) is used for sealing the upper end of a square column, the lower cover plate (14) is used for sealing the lower end of the square column, two opposite sides of the upper cover plate (13) and the lower cover plate (14) are respectively and fixedly connected with a support plate (4), a through hole (41) is formed in the middle of the support plate (4), first threaded holes (42) arranged corresponding to the through holes (41) are formed in the side edges of the front mold frame (11) and the rear mold frame (12), and a fastening bolt penetrates through the through hole (41) and is in threaded connection with the first threaded holes (42);
The upper end face and the lower end face of each of the front mold frame (11) and the rear mold frame (12) are respectively provided with a sliding groove (5), the sliding grooves (5) of the front mold frame (11) and the rear mold frame (12) are spliced to form a ring, a sliding column (51) is respectively installed in the sliding grooves (5) of the upper end face and the lower end face in a sliding mode, the two sliding columns (51) are connected through a U-shaped handle (52), one end of the U-shaped handle (52) is fixedly connected with the sliding column (51) of the upper end face, the other end of the U-shaped handle (52) is fixedly connected with the sliding column (51) of the lower end face, and the sliding column (51) can slide in the spliced annular sliding groove (5); the sliding columns (51) are fixedly connected with a supporting plate (53), a first cutting line (54) is fixedly connected between the supporting plates (53) of the upper sliding column (51) and the lower sliding column (51), and the first cutting line (54) is attached to the inner side wall of the front mold frame (11) or the rear mold frame (12); one corner of the upper cover plate (13) and one corner of the lower cover plate (14) are both provided with a kidney-shaped groove (55), and the kidney-shaped groove (55) is used for avoiding the sliding column (51).
2. The prefabrication apparatus of a fissured test piece according to claim 1, wherein: the first cutting line (54) is a steel wire rope, and the steel wire rope is stranded by a plurality of layers of steel wires.
3. The prefabrication apparatus of a fissured test piece according to claim 2, wherein: the bottom of the sliding groove (5) is arranged into a wave shape, and the protrusions (56) in the sliding groove (5) at the upper ends of the front mold frame (11) and the rear mold frame (12) are arranged in one-to-one correspondence with the concave parts (57) of the sliding groove (5) at the lower end.
4. The prefabrication apparatus of a fissured test piece according to claim 3, wherein: and a ball is arranged at the end of one end of the sliding column (51) contacting the bottom of the sliding groove (5) in a rolling way.
5. the prefabrication apparatus of a fissured test piece according to claim 1, wherein: the cross section of the U-shaped handle (52) is circular, a sleeve (58) is sleeved on the outer ring of the middle part of the U-shaped handle (52), and the sleeve (58) is in clearance fit with the U-shaped handle (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920097786.1U CN209784022U (en) | 2019-01-17 | 2019-01-17 | Prefabricated device that contains crack test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920097786.1U CN209784022U (en) | 2019-01-17 | 2019-01-17 | Prefabricated device that contains crack test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209784022U true CN209784022U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920097786.1U Active CN209784022U (en) | 2019-01-17 | 2019-01-17 | Prefabricated device that contains crack test piece |
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| Country | Link |
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| CN (1) | CN209784022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612813A (en) * | 2019-01-17 | 2019-04-12 | 陆凯 | A kind of mold of the prefabricated test specimen containing crack |
-
2019
- 2019-01-17 CN CN201920097786.1U patent/CN209784022U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612813A (en) * | 2019-01-17 | 2019-04-12 | 陆凯 | A kind of mold of the prefabricated test specimen containing crack |
| CN109612813B (en) * | 2019-01-17 | 2021-03-19 | 福清市昱捷自动化设备有限公司 | Mould of prefabricated crack test piece that contains |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200506 Address after: 214400 Huaxing Road 12, Lingang street, Wuxi, Jiangsu, Jiangyin Patentee after: JIANGYIN HONGNUO MACHINERY EQUIPMENT MANUFACTURING Co.,Ltd. Address before: Room 1901, Unit 1, Building 16, Phoenix District, Mingzhu Road, Huaishang District, Bengbu City, Anhui Province Patentee before: Lu Kai |
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| TR01 | Transfer of patent right |