Detachable brush roll assembly

Abstract

The present disclosure provides a detachable brush roller assembly, comprising a brush roller body, one end of the brush roller body is provided with a first connecting seat rotatably connected thereto, the other end of the brush roller body is provided with a first connecting head, the first connecting seat can be matched with a first positioning groove on the base, the first connecting head can be detachably connected with the output end of the driving device on the base, and the cover plate can lock the first connecting seat on the base after being detachably connected on the base. The present disclosure is convenient and fast to operate, is convenient for dismounting the brush roller assembly for cleaning and the like, saves time and effort, is high in efficiency, stability and reliability, and can meet the increasingly high demands of users.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to cleaning equipment, in particular to a detachable brush roller assembly. BACKGROUND

[0002] People in the early use of floor cleaning tools such as brooms, mops, floor wipes, etc., which mainly rely on manual operation to complete the cleaning work. With the rapid development of science and technology and the continuous progress of society, people's living conditions are constantly improving, and the requirements for living environment are getting higher and higher, and the cleaning concept is getting more and more attention. People's requirements for floor cleaning tools are also gradually increasing. The traditional dust collector relies on power supply to generate negative pressure to suck up garbage, dust and other garbage on the ground, but it cannot clean some garbage and stains firmly attached to the ground, so the application of the rolling brush type cleaning equipment driven by the motor to wipe the ground is more and more. However, the brush roller of the existing cleaning equipment is not easy to disassemble and clean, which is time-consuming and laborious, low in efficiency, poor in stability and reliability, and cannot meet the increasingly high demands of users. SUMMARY

[0003] The purpose of the present disclosure is to provide a detachable brush roller assembly, which can solve at least one of the above technical problems, and the technical scheme of the present disclosure is as follows:

[0004] A detachable brush roller assembly comprises a brush roller body, one end of the brush roller body is provided with a first connecting seat rotatably connected thereto, the other end of the brush roller body is provided with a first connecting head, the first connecting seat can be matched with a first positioning slot on the base, the first connecting head can be detachably connected with the output end of the driving device on the base, and the cover plate can lock the first connecting seat on the base.

[0005] In some embodiments, the first connecting seat is provided with a first sliding block, a first sliding groove matched with the first sliding block, and an elastic reset mechanism, the first protrusion on the cover plate can push the first sliding block to slide along the first sliding groove to insert the first sliding block into the clamping slot on the base for locking, and when the cover plate is separated from the base, the elastic reset mechanism can push the first sliding block to automatically reset to release the locking of the first sliding block and the base.

[0006] In some embodiments, the elastic reset mechanism comprises a first rotating shaft, a rotating rod fixedly connected with the first rotating shaft, and a first torsional spring, the first connecting seat is provided with a first stop block matched with the first torsional spring, the first sliding block is provided with a first through hole matched with the rotating rod, the rotating rod passes through the first through hole, and the first protrusion can push the rotating rod to rotate, the rotating rod rotating can push the first sliding block to slide to insert the first sliding block into the clamping slot on the base for locking, and at the same time can drive the first torsional spring to twist, the twisted first torsional spring can drive the rotating rod to rotate in the opposite direction to automatically reset the first sliding block.

[0007] In some embodiments, one end of the first slider is provided with a second protrusion for connecting with a clamping groove on the base, and the upper end of the rotating rod is provided with a third protrusion matched with the first protrusion.

[0008] In some embodiments, the first slider, the first sliding groove and the elastic reset mechanism are arranged in the first connecting seat, and the first connecting seat is provided with a first hole body for the first protrusion to pass through and a second hole body for the second protrusion to pass through.

[0009] In some embodiments, the top of the first connecting seat is provided with a first operation part extending outward.

[0010] In some embodiments, the surface of the brush roller body is provided with first bristles.

[0011] In some embodiments, the first connecting head is detachably connected with a second connecting head of the output end of the driving device on the base, and as the cover plate is separated from the base, the end of the brush roller body close to the first connecting seat can be lifted upward to separate the first connecting head from the second connecting head.

[0012] In some embodiments, the first connecting head is provided with a first circular truncated cone hole coaxial with the brush roller body, the diameter of the first circular truncated cone hole gradually decreases away from the second connecting head, a plurality of triangular insertion strips are uniformly distributed along the circumferential direction of the first circular truncated cone hole, the triangular insertion strips are arranged along the axial direction of the first circular truncated cone hole, one end point of the triangular insertion strips is outward and the other two end points are inward, the first circular truncated cone hole can be matched with a second circular truncated cone on the second connecting head, and the triangular insertion strips can be matched with the first insertion slots in the circumferential direction of the second circular truncated cone one by one.

[0013] In some embodiments, the triangular insertion strips are isosceles triangles, and the vertex of the triangular insertion strips is outward.

[0014] The beneficial effects of the present disclosure are: when the brush roller assembly is installed, the first connecting head at one end of the brush roller body is connected with the output end of the driving device on the base, the first connecting seat at the other end of the brush roller body is positioned and placed in the first positioning groove on the base, and then the cover plate is detachably connected on the base, the cover plate can lock the first connecting seat on the base, thereby completing the installation of the brush roller assembly; when the brush roller assembly is removed, the cover plate is removed from the base, as the cover plate is separated from the base, the locking of the first connecting seat is released, the first connecting seat is taken out of the first positioning groove, and at the same time, the first connecting head is separated from the output end of the driving device on the base, thereby removing the brush roller assembly, which is convenient and fast, saves time and effort, has high efficiency, high stability and reliability, and can meet the increasingly high demands of users.

[0015] In addition, in the technical solutions of the present disclosure, any unmentioned part can be implemented by using conventional means in the field. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed in the following description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0017] Figure 1 Structure diagram of a detachable brush roller assembly according to an embodiment of the present disclosure.

[0018] Figure 2 Cross-sectional view of a first connecting seat according to an embodiment of the present disclosure.

[0019] Figure 3 Structure diagram of a detachable brush roller assembly, a base and a cover plate according to an embodiment of the present disclosure.

[0020] Figure 4 Partial cross-sectional view of a detachable brush roller assembly, a base and a cover plate according to an embodiment of the present disclosure.

[0021] Figure 5 Partial cross-sectional view of a detachable brush roller assembly, a base and a cover plate according to an embodiment of the present disclosure.

[0022] Figure 6 Structure diagram of a detachable brush roller assembly in a disassembled state on a base according to an embodiment of the present disclosure.

[0023] Figure 7 Structure diagram of a second connecting head according to an embodiment of the present disclosure.

[0024] Explanation of reference numerals in the drawings: brush roller body 1, first connecting head 11, first circular cone hole 111, triangular insertion strip 112, first connecting seat 2, first sliding block 21, first through hole 211, second protrusion 212, first sliding groove 22, elastic reset mechanism 23, first rotating shaft 231, rotating rod 232, third protrusion 2321, first torsional spring 233, first stop block 24, first hole body 25, second hole body 26, first operating part 27, base 3, first positioning groove 31, second connecting head 32, second circular cone 321, first insertion slot 322, cover plate 4, first protrusion 41, first bristles 5. DETAILED DESCRIPTION

[0025] In order to make the purposes, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are part of the embodiments of the present disclosure, rather than all the embodiments, and are only used to explain the present disclosure, and are not used to limit the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0026] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "two ends", "two sides", "bottom", "top" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first", "second", "superior", "inferior", "primary", "secondary" and the like are only for the purpose of description, and can simply be used to distinguish different components more clearly, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present disclosure, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, or it can be mechanically connected, or it can be electrically connected, or it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0028] Referring to Figures 1-7 As shown, the detachable brush roller assembly according to the present disclosure is shown schematically, which comprises a brush roller body 1, one end of the brush roller body 1 is provided with a first connecting seat 2, the first connecting seat 2 is rotatably connected with one end of the brush roller body 1, the other end of the brush roller body 1 is provided with a first connecting head 11, the first connecting head 11 can be detachably connected with the output end of the driving device on the base 3, the base 3 is provided with a cover plate 4 matched with the brush roller assembly and a first positioning groove 31 matched with the first connecting seat 2, the first connecting seat 2 can be positioned and placed through the first positioning groove 31, the cover plate 4 is detachably connected with the base 3, and the cover plate 4 can lock the first connecting seat 2 and shield the brush roller body 1, etc. The first connecting seat 2 and the brush roller body 1 can be axially fixed by using a retaining ring, a nut, an end screw, etc., and the first connecting seat 2 can also be provided with a bearing matched with the brush roller body 1, etc.

[0029] When the brush roller assembly is installed, the first connecting head 11 at one end of the brush roller body 1 is connected with the output end of the driving device on the base 3, the first connecting seat 2 at the other end of the brush roller body 1 is positioned and placed in the first positioning slot 31 on the base 3, and then the cover plate 4 can be detachably connected on the base 3. The cover plate 4 can lock the first connecting seat 2 on the base 3, so as to complete the installation of the brush roller assembly. When the brush roller assembly is removed, the cover plate 4 is removed from the base 3. With the cover plate 4 separated from the base 3, the locking of the first connecting seat 2 is released, the first connecting seat 2 is taken out of the first positioning slot 31, and at the same time the first connecting head 11 is separated from the output end of the driving device on the base 3, so as to remove the brush roller assembly. The installation and removal of the brush roller assembly is very convenient and fast, and the brush roller assembly can be easily removed for cleaning and the like.

[0030] The first connecting seat 2 is provided with a first sliding block 21, a first sliding groove 22 matched with the first sliding block 21 and an elastic reset mechanism 23. The cover plate 4 is provided with a first protrusion 41 matched with the first sliding block 21. The base 3 is provided with a clamping groove matched with the first sliding block 21. The first sliding block 21 can usually slide linearly along the first sliding groove 22. When the cover plate 4 is connected with the base 3, the first protrusion 41 pushes the first sliding block 21 to slide along the first sliding groove 22, and at the same time the elastic reset mechanism 23 is compressed, so that the corresponding part of the first sliding block 21 is inserted into the clamping groove on the base 3 for locking. Therefore, after the cover plate 4 is installed on the base 3, the brush roller assembly is locked on the base 3 at the same time. The elastic reset mechanism 23 also has a reverse force on the first protrusion 41. The cover plate 4 can be pressed against the top of the first connecting seat 2, so that the cover plate 4 and the brush roller assembly are more stable. Similarly, with the cover plate 4 separated from the base 3, the elastic reset mechanism 23 can push the first sliding block 21 to automatically reset along the first sliding groove 22 by the elastic restoring force, so as to release the locking of the first sliding block 21 and the base 3. Then the brush roller assembly can be removed. The structure is simple, compact and stable, the operation is convenient, and it is more stable and reliable.

[0031] The elastic reset mechanism 23 comprises a first rotating shaft 231, a rotating rod 232 and a first torsion spring 233, the rotating rod 232 and the first torsion spring 233 are fixedly connected with the first rotating shaft 231, for example, by using a pin, a key or other fixing connectors, so that the rotating rod 232 and the first torsion spring 233 rotate together with the first rotating shaft 231, the first connecting seat 2 is provided with a first stop block 24 matched with the first torsion spring 233, one torsion leg of the first torsion spring 233 can be pressed against the first stop block 24 or fixedly connected with the first stop block 24, for example, by welding, and the other torsion leg of the first torsion spring 233 can be suspended, the first sliding block 21 is provided with a first through hole 211 matched with the rotating rod 232, the rotating rod 232 passes through the first through hole 211, the first through hole 211 is usually trapezoidal, and the size of the upper end of the first through hole 211 is basically equal to the diameter of the rotating rod 232. When the cover plate 4 is connected with the base 3, the first protrusion 41 drives the rotating rod 232 to rotate, the rotating rod 232 and the first torsion spring 233 rotate together with the first rotating shaft 231, the rotating rod 232 drives the first sliding block 21 to slide, so that the first sliding block 21 is inserted into the clamping groove on the base 3 to be locked, and meanwhile, one torsion leg of the first torsion spring 233 is matched with the first stop block 24, so that the first torsion spring 233 is twisted. Similarly, as the cover plate 4 is separated from the base 3, the twisted first torsion spring 233 drives the rotating rod 232 to rotate reversely, so that the first sliding block 21 is automatically reset along the first sliding groove 22. The structure is simple, compact, stable, easy to operate, and more stable and reliable. In addition, the first torsion spring 233 can also be a planar spiral spring or other suitable mechanism in the prior art, and the elastic reset mechanism 23 can also be a spring directly acting on the first sliding block 21.

[0032] One end of the first sliding block 21 is provided with a second protrusion 212, which can be one or more than two. When the cover plate 4 is connected with the base 3, the first protrusion 41 drives the rotating rod 232 to rotate, the rotating rod 232 and the first torsion spring 233 rotate together with the first rotating shaft 231, the rotating rod 232 drives the first sliding block 21 to slide, so that the second protrusion 212 is inserted into the clamping groove on the base 3 to be locked. The upper end of the rotating rod 232 is provided with a third protrusion 2321 matched with the first protrusion 41, and the first protrusion 41 drives the rotating rod 232 to rotate through the third protrusion 2321. The structure is more stable and reliable. The shapes and sizes of the first protrusion 41, the second protrusion 212 and the third protrusion 2321 are determined according to specific conditions.

[0033] The first sliding block 21, the first sliding groove 22 and the elastic reset mechanism 23 are arranged in the first connecting seat 2, the first connecting seat 2 is provided with a first hole body 25 for the first protrusion 41 to pass through and a second hole body 26 for the second protrusion 212 to pass through, and the structure is more compact, stable, safe, stable and reliable.

[0034] The top of the first connecting seat 2 is provided with a first operation part 27 extending outward, which facilitates the installation and disassembly of the brush roller assembly. The base 3 can be provided with a groove matched with the first operation part 27, and the first operation part 27 can partially extend out of the groove or be raised upward by a certain height.

[0035] The surface of the brush roller body 1 is provided with first bristles 5, and the type, diameter, length, shape, distribution, and number of the first bristles 5 are determined according to specific conditions. For cleaning surfaces such as rolled floors and tiles, the bristles usually need to be relatively soft, and the bristles can be a sleeve made of flexible material arranged on the surface of the first rotating shaft 231. The sleeve can be made of sponge, foam, or other suitable flexible materials in the prior art, and the sleeve is sleeved on the rotating shaft, which is convenient for installation, disassembly, replacement, etc. For cleaning materials such as carpets and blankets, the bristles usually need to be relatively hard, and the bristles can be arranged in a spiral, cluster, straight line, broken line, ring, etc.

[0036] The first connecting head 11 is detachably connected with the second connecting head 32 of the output end of the driving device on the base 3. The motor, motor, etc. driving device can directly drive the second connecting head 32 to rotate, and the motor, motor, etc. driving device can also drive the second connecting head 32 to rotate through a synchronous belt mechanism, gear mechanism, etc. When disassembling the brush roller assembly, after removing the cover plate 4, the end of the brush roller body 1 close to the first connecting seat 2 can be lifted or lifted upward, that is, the first connecting seat 2 can lift or lift the end of the brush roller body 1, the first connecting seat 2 is taken out of the first positioning groove 31, so that the first connecting head 11 and the second connecting head 32 are separated, thereby disassembling the brush roller assembly, which is very convenient and fast.

[0037] As Figure 1 , Figure 7As shown, the first connecting head 11 is provided with a first circular truncated cone hole 111 coaxial with the brush roller body 1, the diameter of the first circular truncated cone hole 111 gradually decreases away from the second connecting head 32, the first circular truncated cone hole 111 is uniformly provided with a plurality of triangular insertion strips 112 along the circumferential direction thereof, the triangular insertion strips 112 are usually multiple, the triangular insertion strips 112 are arranged along the axial direction of the first circular truncated cone hole 111, one end point of the triangular insertion strips 112 is outward and the other two end points are inward, the second connecting head 32 is provided with a second circular truncated cone 321 capable of cooperating with the first circular truncated cone hole 111, the first circular truncated cone hole 111 is coaxial with the second circular truncated cone 321, the second circular truncated cone 321 is provided with a first insertion slot 322 capable of corresponding cooperation with the triangular insertion strips 112 along the circumferential direction thereof, the first connecting head 11 and the second connecting head 32 form a separable shaft coupling structure. When one end of the brush roller body 1 is lifted or lifted through the first connecting seat 2, the first connecting head 11 and the second connecting head 32 are automatically separated, so that the brush roller assembly is dismounted, the operation is more convenient and fast, the structure is simple, compact, stable and reliable. The triangular insertion strips 112 are isosceles triangles, the vertex of the triangular insertion strips 112 is outward, which is more stable and reliable. In addition, the first connecting head 11 and the second connecting head 32 can also adopt a universal shaft coupling and the like.

[0038] The cover plate 4 and the base 3 can be connected by elastic buckle, the cover plate 4 is provided with a first sliding rod, a sliding channel matched with the first sliding rod and a first elastic member, the first elastic member is usually a spring, one end of the first elastic member is pressed against the first sliding rod, the other end of the first elastic member is pressed against the fixed block of the cover plate 4, one end of the first sliding rod is provided with a first clamping block, the base 3 is provided with a clamping groove matched with the first clamping block, the cover plate 4 is provided with an avoiding hole matched with the first clamping block. When the cover plate 4 is connected with the base 3, the first sliding block 21 is matched with the first connecting seat 2, the first clamping block of the first sliding rod is inserted into the clamping groove on the base 3, and at the same time the first elastic member is compressed, so that the cover plate 4 and the base 3 are connected by elastic buckle, the operation is more convenient and fast, and more stable and reliable. The first clamping block usually moves horizontally to connect and separate with the clamping groove on the base 3, in addition, the first clamping block can also move upwardly or downwardly to connect and separate with the clamping groove on the base 3.

[0039] Compared with the prior art, the advantages of the present disclosure are that when the brush roller assembly is installed, the first connecting head 11 at one end of the brush roller body 1 is detachably connected with the second connecting head 32 of the output end of the driving device on the base 3, the first connecting seat 2 at the other end of the brush roller body 1 is positioned and placed in the first positioning slot 31 on the base 3, then the cover plate 4 is detachably connected on the base 3, the first protrusion 41 on the cover plate 4 pushes the rotating rod 232 to rotate, the rotating rod 232 and the first torsional spring 233 rotate together with the first rotating shaft 231, the rotating rod 232 rotates and then pushes the first sliding block 21 to slide, so that the second protrusion 212 of the first sliding block 21 is inserted into the clamping slot on the base 3 to be locked, at the same time, one torsional leg of the first torsional spring 233 cooperates with the first stop block 24, so that the first torsional spring 233 is twisted, the cover plate 4 can lock the first connecting seat 2 on the base 3, thereby completing the installation of the brush roller assembly, when the brush roller assembly is removed, the cover plate 4 is removed from the base 3, as the cover plate 4 is separated from the base 3, the twisted first torsional spring 233 drives the rotating rod 232 to rotate reversely, so that the first sliding block 21 is automatically reset along the first sliding slot 22, the second protrusion 212 of the first sliding block 21 is withdrawn from the clamping slot on the base 3, and the locking of the first connecting seat 2 is released, through the first connecting seat 2, one end of the brush roller body 1 can be lifted or lifted, the first connecting seat 2 is taken out of the first positioning slot 31, so that the first connecting head 11 and the second connecting head 32 are automatically separated, thereby the brush roller assembly is removed, the operation is convenient and fast, the brush roller assembly can be removed for cleaning, etc., time and labor are saved, the efficiency is high, the structure is simple, compact and stable, the safety, stability and reliability are high, and the increasingly high demands of users can be met.

[0040] The above only describes some embodiments of the present disclosure, which are used to illustrate the technical solutions of the present disclosure, but not to limit them, and it should be understood that for ordinary skilled persons in the art, without departing from the creative concept of the present disclosure, the above description can be improved or replaced, and all these improvements and replacements should belong to the protection scope of the appended claims of the present disclosure. In this case, all details can be replaced by equivalent elements, and the materials, shapes and sizes can be arbitrary.

Claims

1. A detachable brush roller assembly, characterized in that, Includes a brush roller body (1), one end of which is provided with a first connecting seat (2) rotatably connected thereto, and the other end of which is provided with a first connecting head (11). The first connecting seat (2) can cooperate with the first positioning groove (31) on the base (3). The first connecting head (11) can be detachably connected to the output end of the drive device on the base (3). With the cover plate (4) detachably connected to the base (3), the cover plate (4) can lock the first connecting seat (2) on the base (3). The first connecting seat (2) is provided with a first slider (21), a first groove (22) that cooperates with the first slider (21), and an elastic reset mechanism (23). The first protrusion (41) on the cover plate (4) can push the first slider (21) to slide along the first groove (22) so that the first slider (21) is inserted into the slot on the base (3) for locking. As the cover plate (4) separates from the base (3), the elastic reset mechanism (23) can push the first slider (21) to automatically reset to release the lock between the first slider (21) and the base (3). The surface of the brush roller body (1) is provided with first bristles (5); The first connector (11) can be detachably connected to the second connector (32) at the output end of the drive device on the base (3). As the cover plate (4) separates from the base (3), the end of the brush roller body (1) near the first connector (2) can be lifted up to separate the first connector (11) from the second connector (32). The first connector (11) is provided with a first frustum hole (111) coaxial with the brush roller body (1). The diameter of the first frustum hole (111) gradually decreases in the direction away from the second connector (32). A number of triangular inserts (112) are evenly distributed in the first frustum hole (111) along its circumferential direction. The triangular inserts (112) are arranged along the axial direction of the first frustum hole (111). One end of the triangular insert (112) faces outward and the other two ends face inward. The first frustum hole (111) can cooperate with the second frustum (321) on the second connector (32). The triangular inserts (112) can be correspondingly cooperated with the first slot (322) in the circumferential direction of the second frustum (321).

2. The detachable brush roller assembly according to claim 1, characterized in that, The elastic reset mechanism (23) includes a first rotating shaft (231), a rotating rod (232) and a first torsion spring (233) fixedly connected to the first rotating shaft (231). The first connecting seat (2) is provided with a first stop (24) that cooperates with the first torsion spring (233). The first slider (21) is provided with a first through hole (211) that cooperates with the rotating rod (232). The rotating rod (232) passes through the first through hole (211). The first protrusion (41) can push the rotating rod (232) to rotate. The rotation of the rotating rod (232) can push the first slider (21) to slide so that the first slider (21) is inserted into the slot on the base (3) for locking. At the same time, it can drive the first torsion spring (233) to twist. The twisted first torsion spring (233) can drive the rotating rod (232) to rotate in the opposite direction so that the first slider (21) automatically resets.

3. The detachable brush roller assembly according to claim 2, characterized in that, One end of the first slider (21) is provided with a second protrusion (212) for connecting with the slot on the base (3), and the upper end of the rotating rod (232) is provided with a third protrusion (2321) that cooperates with the first protrusion (41).

4. The detachable brush roller assembly according to claim 3, characterized in that, The first slider (21), the first groove (22) and the elastic reset mechanism (23) are disposed in the first connecting seat (2). The first connecting seat (2) is provided with a first hole (25) for the first protrusion (41) to pass through and a second hole (26) for the second protrusion (212) to pass through.

5. The detachable brush roller assembly according to claim 1, characterized in that, The top of the first connecting seat (2) is provided with an outwardly extending first operating part (27).

6. The detachable brush roller assembly according to claim 1, characterized in that, The triangular insert (112) is an isosceles triangle with its apex facing outwards.

Images