CN216791989U - Material adhesion test mould and assembly - Google Patents

Abstract

The utility model relates to a material viscosity test mould and a component, wherein the material viscosity test mould comprises: the locking device comprises a bottom plate, a locking assembly and a cover plate; the bottom plate and the cover plate are arranged at intervals, and a pressing space for realizing sample adhesion is formed in a gap between the bottom plate and the cover plate; the locking assembly comprises a locking member and a matching member, and the matching member sequentially penetrates through the bottom plate, the pressing space and the cover plate to be in threaded fit with the locking member; the retaining member has the fitting surface, the fitting surface with the apron is kept away from the face in suppression space is mutually supported, realize the bottom plate with the reduction in clearance between the apron, through configuration optimization design, guarantee the succinct of mould structure, reach simultaneously and glue the effect.

Description

Material adhesion test mould and assembly

Technical Field

The utility model relates to the technical field of machine manufacturing, in particular to a material adhesion test mold and a material adhesion test assembly.

Background

In the material test, can use the mould preparation sample usually, if when gluing for the material, for guaranteeing to glue the effect, use the material to glue experimental mould and verify its effect, to gluing the mould with current, its structural design is comparatively complicated, and the processing cost is high, and can't better improve test efficiency.

In view of this, the present application is specifically proposed.

SUMMERY OF THE UTILITY MODEL

Aiming at the related problems in the prior art, on one hand, the utility model provides a material adhesion test mold, which is designed through structure optimization, so that the simplicity of the mold structure is ensured, and the adhesion effect is achieved; on the other hand, the utility model provides a material adhesion test die assembly, which can effectively ensure the pressing force of a die through structural design, thereby ensuring the test effect.

The utility model is realized by the following technical scheme:

first aspect

The embodiment of the utility model provides a material viscosity test die, which comprises: the locking device comprises a bottom plate, a locking assembly and a cover plate; the bottom plate and the cover plate are arranged at intervals, and a pressing space for realizing sample adhesion is formed in a gap between the bottom plate and the cover plate; the locking assembly comprises a locking piece and a matching piece, and the matching piece sequentially penetrates through the bottom plate, the pressing space and the cover plate to be in threaded matching with the locking piece; the locking piece is provided with a matching surface, and the matching surface is matched with the surface of the cover plate far away from the pressing space, so that the reduction of the gap between the bottom plate and the cover plate is realized.

In this scheme, the mould includes apron and bottom plate, the apron and the bottom plate interval sets up, forms the suppression space, and through locking Assembly's structural design, the design fitting piece passes in proper order bottom plate, suppression space and the apron with the retaining member is mutually supported, when the sample glues, can place the sample in on the bottom plate, through the adjustment the retaining member of fitting piece tip is realized the apron with the adjustment in the suppression space between the bottom plate can effectual realization test dynamics guarantee to guarantee test effect, and this mould simple structure, the adjustment of passing through that can be simple the retaining member with the complex position of fitting piece realizes gluing dynamics adjustment.

Further, the fitting piece includes stiff end and cooperation end, the stiff end with the connection can be dismantled to the bottom plate, the cooperation end is provided with the external screw thread, the retaining member is provided with the internal thread, the internal thread with the external screw thread is mutually supported, through aiming at the structural design of fitting piece, can realize dismantling of fitting piece and bottom plate, convenient cleanness.

Further, the stiff end is the polygon prism structure, the bottom plate be provided with the through-hole of polygon prism structure looks adaptation, through adopting the structural design of polygon prism, can effectual realization the fitting piece with the complex of bottom plate guarantees complex stability, further guarantees the succinct nature of structure.

Further, the through hole is a stepped hole and comprises a first through hole and a second through hole which are communicated with each other, and the axes of the first through hole and the second through hole are collinear; the first through hole is far away from the pressing space relative to the second through hole; the first through hole is matched with the polygonal prism structure.

Furthermore, any side wall of the first through hole is provided with a limiting groove, and the side wall of the limiting groove is parallel to the first through hole; the end part of the limiting groove far away from the second through hole is communicated with the external space; the stiff end be provided with spacing groove mutually supported locating part, through the structural design of spacing groove locking Assembly is when a plurality of, can effectual assurance each the fitting piece is being installed the position of the installation on the bottom plate is the same, at the other end with during the retaining member is mutually supported, can effectual assurance be in behind the rotatory same angle of retaining member, it is a plurality of the pressure of formation between the locking Assembly is the same to guarantee the homogeneity of suppression.

Furthermore, the retaining member is a butterfly nut structure and comprises a butterfly wing portion and a thread cylinder, the thread cylinder is provided with internal threads matched with the matching ends, the outer wall of the thread cylinder is connected with the butterfly wing portion, one end of the thread cylinder is a matching surface, the butterfly nut is adopted for structural design, and operation is convenient.

Further, the butterfly wing portion is two at least, and one of them butterfly wing portion sets up one side of screw thread section of thick bamboo axis, wherein another the butterfly wing portion sets up the opposite side of screw thread section of thick bamboo axis, the axis of screw thread section of thick bamboo is located two on the plane at butterfly wing portion place, the butterfly wing portion still is provided with the pressurization hole, the pressurization hole is the through-hole structure, the axis in pressurization hole with the plane at butterfly wing portion place is perpendicular, through the structural design in pressurization hole, can further guarantee the retaining member with the cooperation dynamics of fitting piece guarantees experimental effect.

Furthermore, the bottom plate is located the side in suppression space still is provided with the bellying that a plurality of intervals set up, and adjacent two interval between the bellying equals, the bellying still is provided with the constant head tank, the constant head tank set up in the intermediate position of bellying.

Second aspect of the utility model

The embodiment of the utility model also provides a material viscosity test die assembly which comprises the material viscosity test die and a screwing piece, wherein the screwing piece is used for being matched with the locking piece to realize rotation of the locking piece.

Furthermore, the number of the locking assemblies is multiple, and the locking assemblies are arranged at intervals; when the locking piece comprises a butterfly wing part and a threaded barrel, the butterfly wing part comprises a force bearing end and a connecting end, the connecting end is connected with the side wall of the threaded barrel, and the force bearing end is positioned on two sides of the end face of the threaded barrel relative to the connecting end; the fine adjustment part comprises a positioning hole and a fine adjustment hole, the positioning hole is used for being matched with one of the butterfly wing parts, the fine adjustment hole is used for being matched with the other adjacent butterfly wing part, the included angle of the two butterfly wing parts relative to any surface perpendicular to the bottom plate is ensured to be the same, the fine adjustment hole comprises a guide part and a positioning part, the guide part is communicated with the positioning part, and the included angle of the positioning part relative to any surface perpendicular to the bottom plate is the same as that of the positioning hole; the guide part comprises a positioning strip vertical to the plane of the positioning part; still include the spigot surface, the one end of spigot surface is connected the location strip, the other end of spigot surface is connected the lateral wall of locating hole, through locking Assembly with the structural design of fine setting spare, it is a plurality of can effectual realization the angle of retaining member is guaranteed to the holding power that further guarantees each locking Assembly and produces is the same.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. according to the material adhesion test die and the assembly, the structure of the die is ensured to be simple while the adhesion effect is ensured through the structural optimization design of the material adhesion test die;

2. according to the material adhesion test die and the material adhesion test assembly, the matching of the matching piece and the base plate can be effectively realized by adopting the structural design of the polygon prism, so that the matching stability is ensured, and the structural simplicity is further ensured;

3. according to the material adhesion test die and the material adhesion test assembly, due to the structural design of the limiting grooves, when a plurality of locking assemblies are arranged, the same installation direction of each matching piece on the bottom plate can be effectively ensured, and when the other end of each matching piece is matched with the locking piece, the same pressure formed among the locking assemblies can be effectively ensured after the locking pieces rotate by the same angle, so that the pressing uniformity is ensured;

4. according to the material adhesion test die and the material adhesion test assembly, the matching force of the locking piece and the matching piece can be further ensured through the structural design of the pressurizing hole, and the test effect is ensured;

5. according to the material adhesion test die and the material adhesion test die assembly, the pressing force of the die can be effectively guaranteed through the structural design of the material adhesion test die assembly, so that the test effect is guaranteed;

6. according to the material viscosity test die and the material viscosity test assembly, due to the structural design of the locking assemblies and the fine adjustment pieces, the angle guarantee of the locking pieces can be effectively realized, and the pressing force generated by each locking assembly is further guaranteed to be the same.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a material adhesion test mold according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a locking assembly according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of area A of FIG. 2;

FIG. 4 is a cross-sectional view of a base plate provided in accordance with an embodiment of the present invention;

FIG. 5 is a partial enlarged view of the area B in FIG. 4;

FIG. 6 is a top view of a base plate provided in accordance with an embodiment of the present invention;

FIG. 7 is a bottom view of a trim member provided in accordance with an embodiment of the present invention;

fig. 8 is a cross-sectional view of a trim component provided in accordance with an embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

100-bottom plate, 110-through hole, 111-first through hole, 111 a-spacing groove, 112-second through hole, 120-lug, 121-positioning groove, 200-locking component, 210-locking component, 211-butterfly wing part, 211 a-pressurizing hole, 212-threaded cylinder, 220-matching piece, 221-fixing end, 221 a-limiting piece, 222-matching end, 300-cover plate, 400-fine adjustment piece, 410-positioning hole, 420-fine adjustment hole, 421-guiding part and 422-positioning part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the utility model. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.

Examples

As shown in fig. 1-2, an embodiment of the present invention provides a material adhesion testing mold, including: a base plate 100, a locking assembly 200, and a cover plate 300; the bottom plate 100 and the cover plate 300 are arranged at intervals, and a pressing space for realizing sample adhesion is formed in a gap between the bottom plate 100 and the cover plate 300; the locking assembly 200 comprises a locking member 210 and an engaging member 220, wherein the engaging member 220 sequentially passes through the bottom plate 100, the pressing space and the cover plate 300 to be in threaded engagement with the locking member 210; the retaining member 210 has a mating surface that mates with the surface of the cover plate 300 away from the press space, resulting in a reduction in the gap between the base plate 100 and the cover plate 300.

Specifically, in order to ensure the testing effect, the number of the locking assemblies 200 may be multiple, and multiple locking assemblies 200 may be disposed at the corner positions of the bottom plate 100, may be disposed at the key point of the connecting line between two corners, or may be disposed at the geometric center, and the specific position is not limited, but it should be noted that the corresponding position arrangement should avoid affecting the sample.

In this scheme, material viscosity test mould includes apron 300 and bottom plate 100, apron 300 and bottom plate 100 interval sets up, forms the suppression space, and through the structural design of locking Assembly 200, design fitting piece 220 passes in proper order bottom plate 100, suppression space and apron 300 with retaining member 210 mutually supports, when the sample glues, can place the sample in on bottom plate 100, through the adjustment the retaining member 210 of fitting piece 220 tip realizes apron 300 with the adjustment in the suppression space between the bottom plate 100 can the effectual assurance that realizes experimental dynamics to guarantee experimental effect, and this mould simple structure, the adjustment that can be simple through retaining member 210 with the complex position of fitting piece 220 realizes the adjustment of viscosity dynamics.

As shown in fig. 2, in some embodiments, the fitting member 220 includes a fixing end 221 and a fitting end 222, the fixing end 221 is detachably connected to the bottom plate 100, the fitting end 222 is provided with an external thread, the locking member 210 is provided with an internal thread, the internal thread is mutually matched with the external thread, and by aiming at the structural design of the fitting member 220, the fitting member 220 can be detached from the bottom plate 100, which is convenient for cleaning.

As shown in fig. 3, in some embodiments, the fixing end 222 is a polygonal prism structure, and the base plate 100 is provided with a through hole 110 adapted to the polygonal prism structure, so that the fitting of the fitting piece 220 and the base plate 100 can be effectively realized by adopting a polygonal prism structure design, the fitting stability is ensured, and the structural simplicity is further ensured.

It should be noted that, as will be understood by those skilled in the art, the polygon prism structure is mainly designed to ensure the relative position of the engaging element 220, so as to prevent the engaging element 220 from rotating when the locking element 210 is rotated to affect the locking force of the locking assembly 200.

As shown in fig. 4-5, in some embodiments, the through hole 110 is a stepped hole, and includes a first through hole 111 and a second through hole 112 that are communicated with each other, and axes of the first through hole 111 and the second through hole 112 are collinear; the first through hole 111 is distant from the pressing space with respect to the second through hole 112; the first through hole 111 is adapted to the polygonal prism structure.

The first through hole 111 is adapted to the polygonal prism structure, so that the first through hole is identical to the polygonal prism structure, and the fitting member 220 can be fixed, thereby ensuring the locking strength, and it should be noted that the height of the first through hole 111 should be identical to the height of the polygonal prism structure.

Wherein the second through hole 112 should be adapted to the structure between the two ends of the fitting member 220.

As shown in fig. 5, in some embodiments, any one sidewall of the first through hole 111 is provided with a limiting groove 111a, and a sidewall of the limiting groove 111a is parallel to the first through hole 111; the end part of the limiting groove 111a far away from the second through hole 112 is communicated with the external space; the stiff end 221 be provided with spacing groove 111a is the locating part 221a of mutually supporting, through spacing groove 111 a's structural design locking Assembly 200 when being a plurality of, can effectually guarantee each the fitting piece 220 is in the installation the position of the installation on the bottom plate 100 is the same, at the other end with when retaining member 210 mutually supports, can effectually guarantee behind the rotatory same angle of retaining member 210, it is a plurality of the pressure of formation between the locking Assembly 200 is the same to guarantee the homogeneity of suppression.

It should be noted that, as a person skilled in the art should know, when the screw thread and the nut are matched with each other, when the starting position of the corresponding screw thread is the same, the relative rotation angle of the corresponding screw thread is the same, and the relative movement distance of the corresponding screw thread is the same, so based on this, the main purpose of providing the limiting groove 111a is to ensure that when the plurality of matching elements 220 are matched with each other on the base plate 100, the starting positions of the screw threads of the plurality of matching elements 220 are at the same position, so as to effectively ensure that when the locking element 210 is matched with the matching elements 220, as long as when the rotating angle of the locking element 210 is the same, the pressure generated by the locking element 210 pressing the cover plate 300 is the same, thereby effectively ensuring the pressing effect and ensuring the uniformity.

As shown in fig. 2, in some embodiments, the locking member 210 is a wing nut structure, and includes a wing portion 211 and a threaded cylinder 212, the threaded cylinder 212 is provided with an internal thread that is matched with the mating end 222, an outer wall of the threaded cylinder 212 is connected with the wing portion 211, and one end of the threaded cylinder 212 is a matching surface, and the wing nut structure is designed to facilitate operation.

As shown in fig. 2, in some embodiments, there are at least two butterfly wing portions 211, one of the butterfly wing portions 211 is disposed on one side of an axis of the thread cylinder 212, the other of the butterfly wing portions 211 is disposed on the other side of the axis of the thread cylinder 212, the axis of the thread cylinder 212 is located on a plane where the two butterfly wing portions 211 are located, the butterfly wing portions 211 are further provided with a pressing hole 211a, the pressing hole 211a is a through hole 110 structure, the axis of the pressing hole 211a is perpendicular to the plane where the butterfly wing portions 211 are located, and by the structural design of the pressing hole 211a, the fitting strength of the locking member 210 and the fitting member 220 can be further ensured, and the test effect can be ensured.

As shown in fig. 4 and 6, in some embodiments, the bottom plate 100 is further provided with a plurality of protrusions 120 spaced apart from each other on a side of the pressing space, a distance between two adjacent protrusions 120 is equal, the protrusions 120 are further provided with positioning grooves 121, and the positioning grooves 121 are disposed in middle positions of the protrusions 120.

The embodiment of the utility model also provides a material viscosity test mold assembly, which comprises the material viscosity test mold and a screwing piece, wherein the screwing piece is used for being matched with the locking piece 210 to realize the rotation of the locking piece 210.

The tightening piece can be a wrench corresponding to the butterfly nut, can be of a rod-shaped structure, and is matched with the pressurizing hole 211a to ensure the matching strength.

As shown in fig. 7-8, in some embodiments, the number of the locking assemblies 200 is multiple, and a plurality of the locking assemblies 200 are arranged at intervals; when the locking member 210 comprises the butterfly wing portion 211 and the threaded barrel 212, the butterfly wing portion 211 comprises a force bearing end and a connecting end, the connecting end is connected with the side wall of the threaded barrel 212, and the force bearing end is positioned on two sides of the end surface of the threaded barrel 212 relative to the connecting end; the fine adjustment piece 400 is further included, the fine adjustment piece 400 includes a positioning hole 410 and a fine adjustment hole 420, the positioning hole 410 is used for being matched with one of the butterfly wing portions 211, the fine adjustment hole 420 is used for being matched with the other adjacent butterfly wing portion 211, so that the included angle of the two butterfly wing portions 211 relative to any one surface perpendicular to the bottom plate 100 is the same, the fine adjustment hole 420 includes a guide portion 421 and a positioning portion 422, the guide portion 421 is communicated with the positioning portion 422, and the included angle of the positioning portion 422 relative to any one surface perpendicular to the bottom plate 100 is the same as that of the positioning hole 410; the guide portion 421 includes a positioning bar perpendicular to the plane of the positioning portion 422; the locking component 210 is characterized by further comprising a guide surface, one end of the guide surface is connected with the positioning strip, the other end of the guide surface is connected with the side wall of the positioning hole 410, and through the structural design of the locking component 200 and the fine adjusting component 400, the angle of the locking component 210 can be effectively guaranteed to be multiple, so that the pressing force generated by each locking component 200 is further guaranteed to be the same.

In particular, it should be noted that the operating company of the trimmer 400 ensures that the angles of the corners of two adjacent locking members 210 are the same, and as will be appreciated by those skilled in the art, for the locking members 210, the locking members 210 can only be angularly opposite for the same circumference, but cannot ensure the number of rotations, so that the number of specific rotations needs to be counted manually.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A material viscosity test mould, characterized by comprising:

a base plate (100), a locking assembly (200) and a cover plate (300);

the bottom plate (100) and the cover plate (300) are arranged at intervals, and a pressing space for realizing sample adhesion is formed in a gap between the bottom plate (100) and the cover plate (300);

the locking assembly (200) comprises a locking member (210) and a fitting member (220),

the fitting piece (220) penetrates through the bottom plate (100), the pressing space and the cover plate (300) in sequence to be in threaded fit with the locking piece (210);

the locking element (210) has a mating surface which cooperates with a surface of the cover plate (300) remote from the pressing space, such that a reduction of the gap between the base plate (100) and the cover plate (300) is achieved.

2. The material viscosity test mold according to claim 1, wherein the fitting member (220) comprises a fixing end (221) and a fitting end (222), the fixing end (221) is detachably connected with the bottom plate (100), the fitting end (222) is provided with an external thread, the locking member (210) is provided with an internal thread, and the internal thread is matched with the external thread.

3. A material viscosity test mold according to claim 2, characterized in that the fixing end (221) is a polygonal prism structure, and the base plate (100) is provided with through holes (110) adapted to the polygonal prism structure.

4. A material viscosity test mold according to claim 3, wherein the through hole (110) is a stepped hole, and comprises a first through hole (111) and a second through hole (112) which are communicated with each other, and the axes of the first through hole (111) and the second through hole (112) are collinear; the first through hole (111) is far away from the pressing space relative to the second through hole (112); the first through hole (111) is matched with the polygonal prism structure.

5. The material viscosity test mold according to claim 4, wherein any one side wall of the first through hole (111) is provided with a limiting groove (111a), and the side wall of the limiting groove (111a) is parallel to the first through hole (111); the end part of the limiting groove (111a) far away from the second through hole (112) is communicated with the external space; the fixed end (221) is provided with a limiting piece (221a) matched with the limiting groove (111 a).

6. The material viscosity test mold according to claim 2, characterized in that the locking member (210) is a butterfly nut structure and comprises a butterfly wing portion (211) and a threaded cylinder (212), the threaded cylinder (212) is provided with an internal thread which is matched with the matching end (222), the outer wall of the threaded cylinder (212) is connected with the butterfly wing portion (211), and one end of the threaded cylinder (212) is a matching surface.

7. The material viscosity test mold according to claim 6, wherein the number of the butterfly wing portions (211) is at least two, one butterfly wing portion (211) is arranged on one side of the axis of the thread cylinder (212), the other butterfly wing portion (211) is arranged on the other side of the axis of the thread cylinder (212), the axis of the thread cylinder (212) is located on the plane of the two butterfly wing portions (211), the butterfly wing portions (211) are further provided with pressurizing holes (211a), the pressurizing holes (211a) are of through hole structures, and the axis of the pressurizing holes (211a) is perpendicular to the plane of the butterfly wing portions (211).

8. The material viscosity test mold according to claim 1, wherein a plurality of spaced protrusions (120) are further disposed on the side of the bottom plate (100) located in the pressing space, the distance between two adjacent protrusions (120) is equal, and the protrusions (120) are further provided with positioning grooves (121) disposed at the middle positions of the protrusions (120).

9. A material viscosity test die assembly, comprising the material viscosity test die of any one of claims 1 to 8, and further comprising a tightening member for cooperating with the locking member (210) to effect rotation of the locking member (210).

10. The material viscosity test mold assembly according to claim 9, wherein the number of the locking assemblies (200) is plural, and the plurality of the locking assemblies (200) are arranged at intervals; when the locking piece (210) comprises a butterfly wing part (211) and a threaded barrel (212), the butterfly wing part (211) comprises a force bearing end and a connecting end, the connecting end is connected with the side wall of the threaded barrel (212), and the force bearing end is positioned on two sides of the end surface of the threaded barrel (212) relative to the connecting end; the butterfly valve further comprises a fine adjustment part (400), the fine adjustment part (400) comprises a positioning hole (410) and a fine adjustment hole (420), the positioning hole (410) is used for being matched with one butterfly wing part (211), the fine adjustment hole (420) is used for being matched with the other adjacent butterfly wing part (211), the two butterfly wing parts (211) are guaranteed to have the same included angle relative to any surface perpendicular to the bottom plate (100), the fine adjustment hole (420) comprises a guide part (421) and a positioning part (422), the guide part (421) is communicated with the positioning part (422), and the positioning part (422) and the positioning hole (410) have the same included angle relative to any surface perpendicular to the bottom plate (100); the guide part (421) comprises a positioning strip vertical to the plane of the positioning part (422); the positioning device further comprises a guide surface, one end of the guide surface is connected with the positioning strip, and the other end of the guide surface is connected with the side wall of the positioning hole (410).

Images