Threaded sleeve connecting assembly and pattern block

Abstract

The utility model discloses a thread bushing connecting assembly and a pattern block, and belongs to the technical field of fasteners. The thread bushing connecting assembly comprises a thread bushing and a fastener; the threaded sleeve comprises a connecting main sleeve and an anti-loosening structure which are connected into a whole, the connecting main sleeve is in a hollow column shape, and threads are arranged on the outer side face and the inner side face of the connecting main sleeve. The anti-loosening structure is located at the inner end of the connecting main sleeve. The fastening piece is columnar, and two end parts of the fastening piece are respectively a threaded connecting part and a limiting part; the limiting part is matched with the anti-loosening structure to fasten the threaded sleeve, and the threaded connecting part is used for limiting the position of the limiting part; the pattern block comprises a pattern block base body and further comprises the thread bushing connecting assembly. The threaded sleeve connecting assembly is convenient to disassemble and replace in the later period while effectively preventing looseness, the time for machining a fixed pin hole or a screw in a production field is saved, and the labor intensity is greatly reduced; the pattern block is more stable in performance, the threaded sleeve is not prone to loosening, and service life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field, concretely relates to a screw sleeve connecting assembly and pattern block. BACKGROUND

[0002] The pattern block of the tire mold is embedded with a screw sleeve, in order to prevent the screw sleeve from falling off, various ways of fastening are used in the prior art, such as fastening by a fastener, the fastener can adopt a compression screw, a pin, etc., for example, the utility model patent with the publication number CN216359715U discloses a tire live mold aluminum pattern block fixing device, the outer thread of the steel screw sleeve in the device is provided with an L-shaped opening on the upper surface, a bolt is screwed into the L-shaped opening to prevent the steel screw sleeve from rotating circumferentially and moving radially, or the screw sleeve is fastened by gluing, etc. These existing locking methods are not convenient to disassemble, and the installation operation is complex, which increases the operation time. UTILITY MODEL CONTENTS

[0003] In view of the problems existing in the prior art, the utility model provides a screw sleeve connecting assembly and pattern block, the screw sleeve connecting assembly is detachable, effective and reliable connection of the screw sleeve and the pattern block base body is realized, the service life of the pattern block is improved and maintenance is facilitated.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a screw sleeve connecting assembly, which comprises a screw sleeve and a fastener.

[0006] The screw sleeve comprises a connecting main sleeve and an anti-loosening structure which are connected as a whole, the connecting main sleeve is hollow and columnar, and the outer side and the inner side are both provided with threads; the anti-loosening structure is located at the inner end of the connecting main sleeve.

[0007] The fastener is columnar, and the two ends are respectively a threaded connection part and a limiting part; the limiting part is matched with the anti-loosening structure to fasten the screw sleeve, and the threaded connection part is used to limit the position of the limiting part.

[0008] In the screw sleeve connecting assembly, the outer side of the threaded connection part is provided with threads, the outer diameter of the threaded connection part is smaller than the outer diameter of the limiting part, and the outer diameter of the limiting part is smaller than the inner diameter of the screw sleeve.

[0009] In the screw sleeve connecting assembly, the anti-loosening structure comprises an end plate, the end plate is fixed at the inner end of the connecting main sleeve, and the end plate is provided with a fixing hole.

[0010] The limiting part is located in the screw sleeve, and the threaded connection part is located in the fixing hole and extends outwardly beyond the fixing hole.

[0011] In the threaded sleeve connecting assembly, the anti-loosening groove is provided on the end of the connecting main sleeve away from the end plate and extends in the circumferential direction of the connecting main sleeve; the anti-loosening washer is arranged in the anti-loosening groove and has an outer diameter less than or equal to the outer diameter of the connecting main sleeve, and a deformation portion is arranged on the radially outer side of the anti-loosening washer; the deformation portion protrudes radially outward from the connecting main sleeve.

[0012] In the threaded sleeve connecting assembly, the anti-loosening groove is provided on the end of the connecting main sleeve away from the end plate and extends in the circumferential direction of the connecting main sleeve; the anti-loosening washer is arranged in the anti-loosening groove and has an outer diameter less than or equal to the outer diameter of the connecting main sleeve, and a deformation portion is arranged on the radially outer side of the anti-loosening washer; the deformation portion protrudes radially outward from the connecting main sleeve.

[0013] In the threaded sleeve connecting assembly, the anti-loosening structure comprises a plurality of light-hole columns, the light-hole columns are fixedly connected to the inner end of the connecting main sleeve and extend along the axial direction of the connecting main sleeve; the plurality of light-hole columns are arranged in the circumferential direction of the connecting main sleeve and are spaced apart; the outer side of the light-hole column is a cylindrical surface and has the same diameter as the outer diameter of the connecting main sleeve, and the thread of the connecting main sleeve extends on the outer side of the light-hole column; the inner side of the plurality of light-hole columns surrounds a tensioning cavity, the tensioning cavity is a tapered cavity, and the end of the tensioning cavity close to the connecting main sleeve is a large end.

[0014] The limiting portion is located in the tensioning cavity and abuts against the inner side of the light-hole column; the threaded connecting portion extends outward from the small end of the tensioning cavity.

[0015] In the threaded sleeve connecting assembly, the inner diameter of the large end of the tensioning cavity is greater than the inner diameter of the threaded sleeve.

[0016] In the threaded sleeve connecting assembly, the outer diameter of the threaded connecting portion is equal to the outer diameter of the limiting portion, and the outer sides of the threaded connecting portion and the limiting portion are both provided with threads.

[0017] The anti-loosening structure comprises a plurality of light-hole columns, the light-hole columns are fixedly connected to the inner end of the connecting main sleeve and extend along the axial direction of the connecting main sleeve; the plurality of light-hole columns are arranged in the circumferential direction of the connecting main sleeve and are spaced apart; the outer side of the light-hole column is a cylindrical surface and has the same diameter as the outer diameter of the connecting main sleeve, and the thread of the connecting main sleeve extends on the outer side of the light-hole column; the inner side of the plurality of light-hole columns surrounds a tensioning cavity, the tensioning cavity is a tapered cavity, and the end of the tensioning cavity close to the connecting main sleeve is a large end.

[0018] The threaded connecting portion is screwed with the thread of the connecting main sleeve, and the limiting portion abuts against the inner side of the light-hole column.

[0019] In the threaded sleeve connecting assembly, the inner diameter of the large end of the tensioning cavity is greater than the inner diameter of the threaded sleeve.

[0020] A pattern block, comprising a pattern block base, further comprising the threaded sleeve connecting assembly; the pattern block base is provided with a first threaded hole, the threaded sleeve is screwed with the first threaded hole, and the fastener fastens the threaded sleeve.

[0021] The beneficial effects of the utility model lie in:

[0022] The threaded sleeve connecting assembly fastens the threaded sleeve through the fastener, and the threaded sleeve in the technical scheme of the application comprises a connecting main sleeve and an anti-loosening structure which are connected into one body, the anti-loosening structure is located at the inner end of the connecting main sleeve, and the fastener is located in the threaded sleeve and is detachable, so that the threaded sleeve can be fastened and is convenient to disassemble.

[0023] The threaded sleeve connecting assembly is simple in structure, convenient to install and low in cost.

[0024] The threaded sleeve connecting assembly is effective in anti-loosening and convenient to disassemble and replace in the later period, simultaneously saves the time for processing the fixed pin hole or the screw in the production site, and greatly reduces the labor intensity.

[0025] The pattern block with the threaded sleeve connecting assembly has more stable performance, the threaded sleeve is not prone to loosening, and has a long service life. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of an embodiment of the pattern block of the utility model;

[0027] Figure 2 It is a structure schematic view of the first embodiment of the threaded sleeve connecting assembly of the utility model;

[0028] Figure 3 It is a structure schematic view of the threaded sleeve in the first embodiment of the threaded sleeve connecting assembly of the utility model;

[0029] Figure 4 It is an assembly process schematic view of the first embodiment of the threaded sleeve connecting assembly of the utility model;

[0030] Figure 5 It is a structure schematic view of the second embodiment of the threaded sleeve connecting assembly of the utility model;

[0031] Figure 6 It is a structure schematic view of the threaded sleeve in the second embodiment of the threaded sleeve connecting assembly of the utility model;

[0032] Figure 7 It is Figure 6 It is a sectional view of B-B section;

[0033] Figure 8 It is a structure schematic view of the anti-loosening gasket in the second embodiment of the threaded sleeve connecting assembly of the utility model;

[0034] Figure 9 It is a structure schematic view of the third embodiment of the threaded sleeve connecting assembly of the utility model;

[0035] Figure 10 It is a structure schematic view of the threaded sleeve connecting assembly of the third embodiment of the utility model, and the structure schematic view of the threaded sleeve;

[0036] Figure 11 It is a structure schematic view of the fourth embodiment of the threaded sleeve connecting assembly of the utility model;

[0037] Figure 12 It is a structure schematic view of the threaded sleeve connecting assembly of the fourth embodiment of the utility model, and the structure schematic view of the fastener.

[0038] In the drawing:

[0039] 100 - pattern block base body; 101 - first threaded hole; 102 - second threaded hole;

[0040] 200 - threaded sleeve; 201 - connecting main sleeve; 202 - end plate; 203 - fixing hole; 204 - anti-loosening groove; 205 - light hole column; 206 - expansion cavity;

[0041] 300 - fastener; 301 - threaded connection part; 302 - limiting part; 303 - anti-loosening washer; 304 - deformation part. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with the drawings.

[0043] Please refer to Figures 1-12 , the pattern block includes a pattern block base body 100 and a threaded sleeve connecting assembly; wherein the threaded sleeve connecting assembly is used for connecting the pattern block base body 100 with other structures of the vulcanization mold, thus it is necessary to ensure that the threaded sleeve connecting assembly and the pattern block base body 100 are reliably connected and cannot be loosened in the use process.

[0044] The threaded sleeve connecting assembly includes a threaded sleeve 200 and a fastener 300; wherein the threaded sleeve 200 includes a connecting main sleeve 201, the connecting main sleeve 201 is hollow columnar, and the outer side surface and the inner side surface of the connecting main sleeve 201 are both machined with threads, the pattern block base body 100 is machined with a first threaded hole 101, the connecting main sleeve 201 is located in the first threaded hole 101 and is screwed and connected with the first threaded hole 101; the threads on the inner side surface of the connecting main sleeve 201 are used for connecting other structures of the vulcanization mold. The inner end of the connecting main sleeve 201 is provided with an anti-loosening structure and is used in cooperation with the fastener 300 to prevent the threaded sleeve 200 from loosening and fasten.

[0045] It should be noted that the outer side and the inner side of the connecting main sleeve 201 are based on the radial direction, in which the side close to the inside is the inner side, and the side opposite to the inside is the outer side; the inner end and the outer end of the connecting main sleeve 201 are based on the axial direction, in which the end facing the outside of the first threaded hole 101 is the outer end, and the other end is the inner end; correspondingly, the end face of the outer end is the outer end face, and the end face of the inner end is the inner end face.

[0046] The fastener 300 is columnar, and two ends are respectively a threaded connecting portion 301 and a limiting portion 302, wherein the limiting portion 302 cooperates with the anti-loosening structure to fasten the threaded sleeve 200 on the pattern block base body 100; the outer side of the threaded connecting portion 301 is processed with threads, which is used for positioning the fastener 300 itself to control the position of the limiting portion 302, thereby completing the fastening or unfastening of the threaded sleeve 200.

[0047] Based on the difference of the anti-loosening structure, the structure of the fastener 300 is also different, which will be described below by specific embodiments.

[0048] Please refer to Figures 2-4 The first embodiment of the threaded sleeve connecting assembly provided by the utility model comprises an end plate 202, which is fixed at the inner end of the connecting main sleeve 201, and is preferably an integral structure. The end plate 202 is provided with a fixing hole 203, which penetrates the inner end face and the outer end face of the end plate 202; the fixing hole 203 is preferably coaxially arranged with the threaded sleeve 200.

[0049] In the axial direction of the fastener 300, the threaded connecting portion 301 is located inside the limiting portion 302, the outer diameter of the threaded connecting portion 301 is smaller than the hole diameter of the fixing hole 203, the outer diameter of the limiting portion 302 is greater than the hole diameter of the fixing hole 203 and smaller than the inner diameter of the connecting main sleeve 201; the limiting portion 302 is located inside the connecting main sleeve 201, and the threaded connecting portion 301 is located inside the fixing hole 203 and extends out of the fixing hole 203. The bottom wall of the first threaded hole 101 is processed with a second threaded hole 102, and the threaded connecting portion 301 is connected with the second threaded hole 102 after penetrating the fixing hole 203.

[0050] The fastener 300 applies axial force to the inner end of the threaded sleeve 200 to press the threaded sleeve 200 tightly and prevent the threaded sleeve 200 from loosening. During assembly, the threaded sleeve 200 is first screwed into the first threaded hole 101, and the two are tightly connected through threads; then the fastener 300 is put into the threaded sleeve 200, and the threaded connecting portion 301 penetrates the fixing hole 203 and is threadedly connected with the second threaded hole 102.

[0051] Please refer to Figures 5-8The second embodiment of the threaded sleeve connecting assembly provided by the utility model is different from the first embodiment in that an anti-loosening groove 204 is arranged on the outer side surface of the outer end portion of the connecting main sleeve 201, and the anti-loosening groove 204 extends in the circumferential direction of the connecting main sleeve 201. It can be understood that the number of the anti-loosening grooves 204 can be one or multiple; if multiple anti-loosening grooves 204 are arranged, the multiple anti-loosening grooves 204 are distributed at intervals in the circumferential direction of the connecting main sleeve 201. An anti-loosening washer 303 is arranged in the anti-loosening groove 204, and the two side groove walls of the anti-loosening groove 204 limit the anti-loosening washer 303 in the axial direction. The outer diameter of the anti-loosening washer 303 is less than or equal to the outer diameter of the connecting main sleeve 201, and a deformation portion 304 is arranged on the outer side surface of the anti-loosening washer 303; the deformation portion 304 protrudes radially outward of the connecting main sleeve 201. The anti-loosening washer 303 can be made of metal and is allowed to have a certain deformation amount; as shown in the figure, since the deformation portion 304 protrudes radially outward of the connecting main sleeve 201, the deformation portion 304 deforms during the screwing of the connecting main sleeve 201 and the first threaded hole 101, the inner side of the deformation portion 304 is clamped with the connecting main sleeve 201, and the outer side is folded outward against the inner wall of the first threaded hole 101; since the inner wall of the first threaded hole 101 is processed with threads, there are concave-convex surfaces, so that the deformed deformation portion 304 can tightly press the connecting main sleeve 201 after being folded, thereby preventing the connecting main sleeve 201 from moving in the axial and circumferential directions. Figure 5

[0052] Preferably, the anti-loosening groove 204 extends in the circumferential direction of the connecting main sleeve 201 in a C shape; the anti-loosening washer 303 is also in a C shape, the outer diameter of the outer side groove wall of the anti-loosening groove 204 is less than the outer diameter of the inner side groove wall, which provides a clearance for the anti-loosening washer 303 to be installed in the anti-loosening groove 204, but at the same time, the outer diameter of the outer side groove wall of the anti-loosening groove 204 should be greater than the inner diameter of the anti-loosening washer 303; the anti-loosening washer 303 and the anti-loosening groove 204 are matched in shape, which can prevent the anti-loosening washer 303 from rotating.

[0053] Please refer to Figure 9 、 Figure 10 The third embodiment of the threaded sleeve connecting assembly provided by the utility model, the anti-loosening structure comprises a plurality of light hole columns 205, the light hole columns 205 are fixedly connected with the inner end of the connecting main sleeve 201 and extend along the axial direction of the connecting main sleeve 201; the plurality of light hole columns 205 are uniformly and intervally arranged in the circumferential direction of the connecting main sleeve 201. The outer side surface of the light hole column 205 is a cylindrical surface, the outer side surfaces of the plurality of light hole columns 205 are coaxial, that is, the outer side surfaces of the plurality of light hole columns 205 are parts of the same cylindrical surface. The diameter of the outer side surface of the light hole column 205 is the same as the outer diameter of the connecting main sleeve 201, the outer thread of the connecting main sleeve 201 extends on the outer side surface of the light hole column 205, and the light hole column 205 can be screwed with the first threaded hole 101. Preferably, the number of the light hole columns 205 is four, and the light hole columns 205 are symmetrically arranged on the inner end surface of the connecting main sleeve 201.

[0054] ​The light hole column 205 is surrounded by the tight cavity 206, and the tight cavity 206 is a conical cavity; the tight cavity 206 is large at one end close to the connecting main sleeve 201 and small at the other end. The limiting part 302 of the fastener 300 is in the tight cavity 206, and the threaded connecting part 301 extends out of the tight cavity 206 and is screwed with the second threaded hole 102. The small end of the tight cavity 206 has a smaller inner diameter than the outer diameter of the limiting part 302, so that the fastener 300 can press the light hole column 205 after being screwed into the threaded sleeve 200, and the radial outward thrust is exerted on the inner side of the light hole column 205. The large end of the tight cavity 206 has a larger inner diameter than the inner diameter of the connecting main sleeve 201, so that the connection interference can be avoided.

[0055] During assembly, the threaded sleeve 200 is screwed into the first threaded hole 101, and then the fastener 300 is put into the threaded sleeve 200. During the screwing of the threaded connecting part 301 with the second threaded hole 102, the limiting part 302 gradually presses the light hole column 205, so that the anti-loosening purpose of the threaded sleeve 200 is achieved.

[0056] Please refer to Figure 11 、 Figure 12 The fourth embodiment of the threaded sleeve connecting assembly provided by the utility model is different from the third embodiment in that the outer diameter of the fastener 300 is consistent, that is, the outer diameters of the threaded connecting part 301 and the limiting part 302 are the same, and the outer sides of the threaded connecting part 301 and the limiting part 302 are both threaded and can be screwed with the connecting main sleeve 201.

[0057] During assembly, the threaded sleeve 200 is screwed into the first threaded hole 101, and then the fastener 300 is screwed into the threaded sleeve 200 until the limiting part 302 presses the inner end of the light hole column 205. After the assembly is completed, the threaded connecting part 301 is still screwed with the threaded sleeve 200, the limiting part 302 extends into the tight cavity 206 and abuts against the light hole column 205, so that the radial outward thrust is exerted on the inner side of the light hole column 205, and the function of pressing the threaded sleeve 200 is achieved. This scheme does not need to process the second threaded hole 102 on the pattern block base 100, so that the machining process of the pattern block base 100 and the fastener 300 can be simplified, and the assembly is convenient.

[0058] The above only describes the preferred embodiments of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can be changed and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A threaded sleeve connection assembly, characterized in that The device comprises a threaded sleeve (200) and a fastener (300); The threaded sleeve (200) comprises a connecting main sleeve (201) and an anti-loosening structure connected as a whole, the connecting main sleeve (201) is a hollow column, and the outer side and the inner side are both provided with threads; the anti-loosening structure is located at the inner end of the connecting main sleeve (201); The fastener (300) is a column, and the two ends are respectively a threaded connection part (301) and a limiting part (302); the limiting part (302) cooperates with the anti-loosening structure to fasten the threaded sleeve (200), and the threaded connection part (301) is used for limiting the position of the limiting part (302).

2. A threaded sleeve connection assembly according to claim 1, wherein The outer side of the threaded connection part (301) is provided with threads, and the outer diameter is smaller than the outer diameter of the limiting part (302); the outer diameter of the limiting part (302) is smaller than the inner diameter of the threaded sleeve (200).

3. A threaded sleeve connection assembly according to claim 2, wherein The anti-loosening structure comprises an end plate (202), the end plate (202) is fixed at the inner end of the connecting main sleeve (201), and the end plate (202) is provided with a fixing hole (203); The limiting part (302) is located in the threaded sleeve (200), and the threaded connection part (301) is located in the fixing hole (203) and extends outwardly beyond the fixing hole (203).

4. A threaded sleeve connection assembly according to claim 3, wherein The connecting main sleeve (201) is provided with an anti-loosening groove (204) at the end away from the end plate (202), the anti-loosening groove (204) extends in the circumferential direction of the connecting main sleeve (201); the anti-loosening groove (204) is provided with an anti-loosening gasket (303), the outer diameter of the anti-loosening gasket (303) is smaller than or equal to the outer diameter of the connecting main sleeve (201), and the radially outer side of the anti-loosening gasket (303) is provided with a deformation part (304); the deformation part (304) protrudes radially outwardly beyond the connecting main sleeve (201).

5. A threaded sleeve connection assembly according to claim 4, wherein The anti-loosening groove (204) extends in the circumferential direction of the connecting main sleeve (201) to be C-shaped, and the anti-loosening gasket (303) is matched with the shape of the anti-loosening groove (204).

6. A threaded sleeve connection assembly according to claim 2, wherein The anti-loosening structure comprises a plurality of light hole columns (205), the light hole columns (205) are fixedly connected with the inner end of the connecting main sleeve (201) and extend along the axial direction of the connecting main sleeve (201); the plurality of light hole columns (205) are arranged at intervals and uniformly distributed in the circumferential direction of the connecting main sleeve (201); the outer side of the light hole column (205) is a cylindrical surface and has the same diameter as the outer diameter of the connecting main sleeve (201), and the threads of the connecting main sleeve (201) extend on the outer side of the light hole column (205); the inner sides of the plurality of light hole columns (205) surround a tensioning cavity (206), the tensioning cavity (206) is a tapered cavity, and the end of the tensioning cavity (206) close to the connecting main sleeve (201) is a large end; The limiting part (302) is located in the tensioning cavity (206) and abuts against the inner side of the light hole column (205); the threaded connection part (301) extends outwardly beyond the tensioning cavity (206) from the small end of the tensioning cavity (206).

7. A threaded sleeve connection assembly according to claim 6, wherein The inner diameter of the large end of the tensioning cavity (206) is greater than the inner diameter of the threaded sleeve (200).

8. A threaded sleeve connection assembly according to claim 1, wherein The outer diameter of the threaded connection part (301) is equal to the outer diameter of the limiting part (302), and the outer sides of the threaded connection part (301) and the limiting part (302) are provided with threads; The anti-loosening structure comprises a plurality of light-hole columns (205), the light-hole columns (205) are fixedly connected with the inner end of the connecting main sleeve (201) and extend along the axial direction of the connecting main sleeve (201); the plurality of light-hole columns (205) are uniformly distributed and arranged at intervals in the circumferential direction of the connecting main sleeve (201); the outer sides of the plurality of light-hole columns (205) are cylindrical surfaces with the same diameter as the outer diameter of the connecting main sleeve (201), and the threads of the connecting main sleeve (201) extend on the outer sides of the light-hole columns (205); the inner sides of the plurality of light-hole columns (205) surround a tensioning cavity (206), the tensioning cavity (206) is a conical cavity, and the end of the tensioning cavity (206) close to the connecting main sleeve (201) is a large end; The threaded connection part (301) is screwed with the connecting main sleeve (201), and the limiting part (302) abuts against the inner side of the light-hole column (205).

9. A threaded sleeve connection assembly according to claim 8, wherein The inner diameter of the large end of the tensioning cavity (206) is greater than the inner diameter of the threaded sleeve (200).

10. A pattern tile comprising a pattern tile base (100), characterized in that Further comprising the threaded sleeve connecting assembly according to any one of claims 1-9; the pattern block base body (100) is provided with a first threaded hole (101), the threaded sleeve (200) is screwed with the first threaded hole (101), and the fastener (300) fastens the threaded sleeve (200).

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