Threaded sleeve locking quick-change assembly and pattern block

Abstract

The utility model discloses a thread bushing locking quick-change assembly and a pattern block, and belongs to the technical field of fasteners, the thread bushing locking quick-change assembly comprises a thread bushing, a locking operation rod, a locking piece and a fastener; the threaded sleeve comprises a main connecting part and a locking part, and the locking part is connected with the inner end of the main connecting part; a first cavity is formed in the locking part and extends to the outer side face of the locking part in the radial direction. A through hole is formed in the main connecting part, extends in the axial direction of the threaded sleeve and communicates with the first cavity. The locking operation rod is located in the through hole, and the locking piece is located in the first cavity. The inner end of the locking operation rod extends into the first cavity and is matched with the fastening piece, and the locking piece is controlled to extend out of the threaded sleeve or retract into the inner side of the threaded sleeve in the radial direction. The pattern block comprises a pattern block base body and the thread bushing locking and quick-changing assembly. The threaded sleeve locking quick-change assembly is quick to install, pattern blocks do not need to be damaged, a fixing device is independently machined, and later threaded sleeve replacement is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field, concretely relates to a threaded sleeve locking quick change assembly and pattern block. BACKGROUND

[0002] In the tire active mold, in order to avoid the silk tooth damage condition that pattern block screw hole appears long-term use, usually installs steel threaded sleeve and protects. Steel threaded sleeve can occur self-rotation phenomenon in pattern block, influence the assembly accuracy of pattern block, and the current control mode is to add the pressing screw or cylindrical pin at the side of threaded sleeve, prevents the self-rotation of threaded sleeve in pattern block by the mode of damaging silk tooth. For example, the utility model discloses a kind of tire active mold aluminum pattern block fixing device in the publication No. CN216359715U, L-shaped opening is processed on the upper surface of steel screw sleeve outer thread, bolt is screwed into L-shaped opening to prevent steel screw sleeve from rotating circumferentially and moving radially.

[0003] But the above-mentioned mode needs to damage threaded sleeve and pattern block structure after threaded sleeve is embedded into pattern block screw hole, process is complicated and irreversible, and it is difficult to replace later. UTILITY MODEL CONTENTS

[0004] For the problems existing in the prior art, the utility model provides a threaded sleeve locking quick change assembly and pattern block, and the threaded sleeve is convenient to disassemble and assemble, and easy to maintain.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme as follows:

[0006] The utility model provides a threaded sleeve locking quick change assembly, which comprises a threaded sleeve, a locking operating rod, a locking part and a fastener.

[0007] The threaded sleeve comprises a main connecting part and a locking part, and the locking part is connected with the inner end of the main connecting part. A first cavity is arranged in the locking part, which extends radially to the outer side surface of the locking part. A through hole is arranged in the main connecting part, which extends along the axial direction of the threaded sleeve and communicates with the first cavity.

[0008] The locking operating rod is located in the through hole, and the locking part is located in the first cavity. The inner end of the locking operating rod extends into the first cavity and cooperates with the fastener to control the locking part to extend outwardly or retract radially from the first cavity.

[0009] As a preferred technical scheme, a threaded hole is arranged in the main connecting part, which extends into the locking part.

[0010] And / or, the outer diameter of the locking part is smaller than the outer diameter of the main connecting part.

[0011] And / or, the outer side of the main connecting part is provided with external threads;

[0012] And / or, the through hole is threadedly connected with the locking operating rod;

[0013] And / or, the number of the through hole and the first cavity is two, and the two are symmetrically arranged on the threaded sleeve;

[0014] And / or, the locking part is provided with an auxiliary mounting hole, one end of the auxiliary mounting hole is communicated with the first cavity, and the other end is opened on the inner end face of the locking part.

[0015] As a preferred technical solution, the locking piece includes an elastic sheet, the elastic sheet has at least one recess in the radial direction of the threaded sleeve; the elastic sheet is provided with a first through hole, and the first through hole is located at the recess and is a long strip-shaped hole;

[0016] The elastic sheet is located in the first cavity, one end of the elastic sheet abuts against the inner wall of the first cavity, and the other end of the elastic sheet extends out of the first cavity.

[0017] As a preferred technical solution, the fastener includes a first limiting part and a first connecting part connected with each other, the outer diameter of the first limiting part is greater than the width of the first through hole, and the outer diameter of the first connecting part is smaller than the width of the first through hole;

[0018] The outer diameter of the locking operating rod is greater than the width of the first through hole;

[0019] The first limiting part and the locking operating rod are located on the two sides of the elastic sheet respectively, and the first connecting part passes through the first through hole and is connected with the inner end of the locking operating rod.

[0020] As a preferred technical solution, one end of the elastic sheet extending out of the first cavity is provided with a first abutting part.

[0021] As a preferred technical solution, the locking piece includes a locking rod and an elastic element, one end of the locking rod is located in the first cavity and is fixedly connected with a second limiting part, and the other end of the locking rod extends out of the first cavity; the fastener is located in the first cavity, and the two ends of the elastic element abut against the second limiting part and the fastener respectively.

[0022] As a preferred technical solution, the fastener includes a second connecting part and a third limiting part connected with each other, the second connecting part is fixed in the first cavity; an adjusting cavity communicating with the first cavity is arranged in the second connecting part, the locking rod passes through the adjusting cavity and extends out of the first cavity, and the third limiting part blocks one end of the elastic element away from the second limiting part.

[0023] As a preferred technical solution, the inner end of the locking operating rod is provided with a conical surface, and the conical surface is in abutment with the second limiting part.

[0024] As a preferred technical solution, the side surface of the second limiting part in abutment with the conical surface is a spherical surface.

[0025] And / or, the locking rod is provided with a second abutment part outwardly extending from one end of the first cavity.

[0026] The pattern block comprises a pattern block base body and the threaded sleeve locking quick replacement assembly, the pattern block base body is provided with a mounting hole, the threaded sleeve is connected with the mounting hole, and the locking part is in abutment with the inner wall of the mounting hole outwardly extending radially from the threaded sleeve.

[0027] The beneficial effects of the utility model lie in:

[0028] The threaded sleeve locking quick replacement assembly can be directly screwed into the pattern block, and the threaded sleeve can be locked by adjusting the locking operating rod, the threaded sleeve locking operating rod is convenient to operate, the process is smooth, and the processing efficiency is high.

[0029] The threaded sleeve locking quick replacement assembly has the locking function, and the threaded sleeve can be conveniently replaced in the later period without damaging the pattern block.

[0030] The locking operating rod, the elastic sheet and the locking rod can be used as general parts and used in a mold structure in batches, and the structure is simple and the cost is low.

[0031] The threaded sleeve locking quick replacement assembly can be connected with different connection structures by only changing the inner hole of the threaded sleeve, without changing the threaded hole on the pattern block, and the application range of the pattern block is expanded. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a whole structure schematic view of the first embodiment of the threaded sleeve locking quick replacement assembly of the utility model;

[0033] Figure 2 It is a structure schematic view of the threaded sleeve in the first embodiment of the threaded sleeve locking quick replacement assembly of the utility model;

[0034] Figure 3 It is a structure schematic view of the locking operating rod in the first embodiment of the threaded sleeve locking quick replacement assembly of the utility model; Figure 2 It is a sectional view of C-C section;

[0035] Figure 4 It is a structure schematic view of the locking operating rod in the first embodiment of the threaded sleeve locking quick replacement assembly of the utility model;

[0036] Figure 5 It is a structure schematic view of the locking operating rod in the first embodiment of the threaded sleeve locking quick replacement assembly of the utility model; Figure 4Sectional view of section AA;

[0037] Figure 6 This is a schematic diagram of the fastener structure in the first embodiment of the threaded sleeve locking quick-change assembly of this utility model;

[0038] Figure 7 This is a top view of the elastic sheet in the first embodiment of the threaded sleeve locking quick-change assembly of this utility model;

[0039] Figure 8 This is a front view of the elastic sheet in the first embodiment of the threaded sleeve locking quick-change assembly of this utility model;

[0040] Figure 9 This is a schematic diagram of the overall structure of the second embodiment of the threaded sleeve locking quick-change assembly of this utility model;

[0041] Figure 10 This is a schematic diagram of the threaded sleeve structure in a second embodiment of the threaded sleeve locking quick-change assembly of this utility model;

[0042] Figure 11 for Figure 10 Sectional view of section BB;

[0043] Figure 12 This is a schematic diagram of the fastener structure in a second embodiment of the threaded sleeve locking quick-change assembly of this utility model;

[0044] Figure 13 for Figure 12 Sectional view of section DD;

[0045] Figure 14 This is a schematic diagram of the locking operating rod in the second embodiment of the threaded sleeve locking quick-change assembly of this utility model;

[0046] Figure 15 This is a schematic diagram of the locking component in the first embodiment of the threaded sleeve locking quick-change assembly of this utility model.

[0047] In the picture:

[0048] 100-Threaded sleeve; 101-Main connection part; 102-Threaded hole; 103-Through hole; 104-First cavity; 105-Auxiliary mounting hole; 106-Locking part; 107-Outer cavity; 108-Inner cavity;

[0049] 200 - Locking lever; 201 - First operating groove; 202 - First connecting hole; 203 - Conical surface;

[0050] 300-fastener; 301-first limiting part; 302-first connecting part; 303-adjusting cavity; 304-third limiting part; 305-second connecting part; 306-second through hole;

[0051] 400-locking piece; 401-elastic sheet; 402-first through hole; 403-protruding part; 404-recessed part; 405-first abutting part; 406-second abutting part; 407-elastic element; 408-locking rod; 409-second limiting part. DETAILED DESCRIPTION

[0052] For the convenience of those skilled in the art to understand, the utility model is further explained below in combination with the drawings.

[0053] Please refer to Figures 1-15 A threaded sleeve locking quick-change assembly includes a threaded sleeve 100, a locking operating rod 200, a locking piece 400 and a fastener 300; wherein the fastener 300 is used to limit the locking piece 400 at the inner end of the threaded sleeve 100, cooperate with the locking operating rod 200, control the locking piece 400 to extend radially outside the threaded sleeve 100 or retract inside the threaded sleeve 100, realize the locking or unlocking of the threaded sleeve 100 and the pattern block.

[0054] Here, it is supplemented that the outer end and the inner end of the threaded sleeve 100 are based on the state of being installed in the pattern block, the end of the threaded sleeve 100 close to the outer side of the pattern block is the outer end, and the end opposite to the outer end is the inner end.

[0055] The threaded sleeve 100 includes a main connecting part 101 and a locking part 106, the locking part 106 is connected with the inner end of the main connecting part 101, and the two are an integral structure; the outer diameter of the locking part 106 is smaller than the outer diameter of the main connecting part 101. The outer side surface of the main connecting part 101 is machined with external threads, and the inside is provided with a threaded hole 102; the threaded hole 102 is preferably extended into the locking part 106, which maximizes the effective connecting length of the threaded sleeve 100 within the limited length of the threaded sleeve 100, and improves the stability of the connection. The main connecting part 101 is provided with a through hole 103, the through hole 103 is located radially outside the threaded hole 102 and extends along the axial direction of the threaded sleeve 100. The locking part 106 is provided with a first cavity 104, the first cavity 104 extends radially to the outer side surface of the locking part 106, and forms an opening on the outer side surface of the locking part 106. The through hole 103 extends into the locking part 106 and communicates with the first cavity 104.

[0056] The locking operating rod 200 is located in the through hole 103, the locking piece 400 is located in the first cavity 104, and the inner end of the locking operating rod 200 extends into the first cavity 104. Preferably, the through hole 103 is in threaded connection with the locking operating rod 200, so that the relative position of the locking operating rod 200 and the through hole 103 can be controlled conveniently. The outer end surface of the locking operating rod 200 is provided with a first operating groove 201, which is used for cooperating with a tool to rotate the locking operating rod 200.

[0057] Further, the number of the through hole 103 and the first cavity 104 is preferably two, which are symmetrically arranged on the threaded sleeve 100. The two locking pieces 400 symmetrically form locking between the threaded sleeve 100 and the pattern block, and the stress stability is good.

[0058] Based on the different structures of the locking piece 400, the structures of the fastener 300 and the locking operating rod 200 are also different.

[0059] Please refer to Figures 1-8 The first embodiment of the novel threaded sleeve locking quick change assembly provided by the utility model comprises a locking piece 400, and the locking piece 400 comprises an elastic sheet 401. The material of the elastic sheet 401 can be metal or other materials that can be elastically deformed and have a certain strength. The elastic sheet 401 has at least one recess 404 in the radial direction of the threaded sleeve 100, and convex portions 403 are formed on the two sides of the recess 404 in the radial direction. The elastic sheet 401 is located in the first cavity 104, and the radial inner end of the elastic sheet 401 abuts against the side wall of the first cavity 104. The elastic sheet 401 is provided with a first through hole 402, and the first through hole 402 is located at the recess 404 and is a long strip-shaped hole. The first cavity 104 is matched with the elastic sheet 401, and the cross section of the first cavity 104 is rectangular. The first cavity 104 extends to the inside of the through hole 103 in the radial direction, so that the position of the recess 404 corresponds to the through hole 103.

[0060] As Figure 6 shown, the fastener 300 comprises a first limiting portion 301 and a first connecting portion 302. The outer diameter D2 of the first limiting portion 301 is greater than the width W of the first through hole 402, and the outer diameter D3 of the first connecting portion 302 is less than the width W of the first through hole 402. The first limiting portion 301 is located on the axial inner side of the elastic sheet 401 and is fixedly connected with the axial inner side wall of the first cavity 104. The first connecting portion 302 penetrates through the first through hole 402 and is rotationally connected, preferably threadedly connected, with the first connecting hole 202 of the inner end of the locking operating rod 200, so that the fastener 300 and the locking operating rod 200 can be conveniently disassembled.

[0061] The outer diameter D1 of the locking operating rod 200 is also greater than the width W of the first through hole 402, thereby forming clamping on both sides of the recess 404. Regardless of whether the inner recessed side of the elastic sheet 401 faces the inner end or the outer end of the threaded sleeve 100, the stretching and contraction of the elastic sheet 401 in the radial direction is achieved by controlling the axial movement of the locking operating rod 200. Since the first limiting portion 301 is fixedly connected with the locking portion 106, the axial inner side wall of the first cavity 104 cooperates with the locking operating rod 200 to control the deformation amount of the elastic sheet 401. When the locking operating rod 200 is screwed into the through hole 103, the first limiting portion 301 is fixedly immobile. Since the locking operating rod 200 is threadedly connected with the first connecting portion 302, the locking operating rod 200 can be rotated to approach and press the elastic sheet 401, thereby exerting an axial force on the elastic sheet 401 to push the elastic sheet 401 inward. Due to the obstruction of the axial inner side wall of the first cavity 104, the elastic sheet 401 can be stretched to increase the radial length, thereby extending outward from the threaded sleeve 100 and abutting against the inner wall of the mounting hole, so as to fix the threaded sleeve 100 and improve and overcome the deficiencies of the existing fixing mode of the threaded sleeve 100. When the locking operating rod 200 is screwed out, the elastic sheet 401 will contract to move away from the inner wall of the mounting hole, thereby achieving the disassembly of the threaded sleeve 100. Since the first through hole 402 is an elongated hole, it can adapt to the stretching of the elastic sheet 401 in the radial direction of the threaded sleeve 100.

[0062] Further, the locking portion 106 is provided with an auxiliary mounting hole 105, which is in communication with the first cavity 104 at one end and is open on the inner end face of the locking portion 106 at the other end, so as to facilitate the assembly of the fastener 300. The elastic sheet 401 is provided with a first abutting portion 405 at the radial outer end, which has a smaller width and can be inserted into the thread on the inner wall of the mounting hole of the pattern block, thereby achieving more reliable abutment.

[0063] It can be understood that the axial outer side wall of the first cavity 104 can also be used to cooperate with the locking operating rod 200 and the fastener 300 to control the deformation amount of the elastic sheet 401. At this time, the fastener 300 is fixedly connected with the locking operating rod 200 as a whole and rotates and moves axially synchronously with the locking operating rod 200. The first limiting portion 301 is used to cooperate with the axial outer side wall of the first cavity 104 to control the deformation amount of the elastic sheet 401. If the threaded sleeve 100 needs to be locked, the locking operating rod 200 needs to be rotated and screwed out. The first limiting portion 301 exerts an axial outward force on the elastic sheet 401 to push the elastic sheet 401 to stretch, so that the radial length of the elastic sheet 401 increases and the elastic sheet 401 extends outward from the threaded sleeve 100. When the threaded sleeve 200 needs to be unlocked, the locking operating rod 200 drives the fastener 300 to move axially inward. When the force on the elastic sheet 401 is removed, the elastic sheet 401 naturally stretches and separates from the inner wall of the mounting hole on the pattern block. In this control scheme, the first cavity 104 can be open on the inner end face of the locking portion 106.

[0064] Please refer to Figures 9-15 , the utility model provides a novel threaded sleeve locking quick change assembly second embodiment, locking piece 400 as Figure 15 Shown, including locking rod 408, one end of locking rod 408 is equipped with second limiting portion 409;Locking rod 408 is equipped with elastic element 407, for example spring, on the outside.Locking rod 408 extends in the radial direction of threaded sleeve 100, and in the radial direction of threaded sleeve 100, second limiting portion 409 is located on the inside of locking rod 408.

[0065] As Figure 12 And Figure 13 Shown, fastener 300 includes the second connecting portion 305 and the third limiting portion 304 connected as a whole, the first cavity 104 includes the inner cavity 108 and the outer cavity 107 that communicate with each other, the inner cavity 108 is communicated with the through hole 103, and the outer cavity 107 is located on the radial outside of the inner cavity 108.The outer cavity 107 is matched with the second connecting portion 305, and the second connecting portion 305 is connected with the outer cavity 107.Second connecting portion 305 is provided with adjusting cavity 303, and locking rod 408 passes through adjusting cavity 303 and extends out of first cavity 104.In the radial direction of threaded sleeve 100, the third limiting portion 304 is located on the outside of the second connecting portion 305, and one end of the elastic element 407 abuts against the second limiting portion 409, and the other end abuts against the third limiting portion 304.The third limiting portion 304 is provided with the second through hole 306, and the inner diameter of the second through hole 306 is less than the inner diameter of the adjusting cavity 303, and only the locking rod 408 is allowed to extend out of the second connecting portion 305.

[0066] The inner end of locking operating rod 200 is provided with taper surface 203, and the taper surface 203 abuts against the second limiting portion 409 of locking rod 408;And the outer end of taper surface 203 is a large end.When locking operating rod 200 moves inward, locking rod 408 can be pushed out of adjusting cavity 303, so that the end of locking rod 408 away from second limiting portion 409 is tightly abutted against the mounting hole of pattern block, and the threaded sleeve 100 is prevented from loosening.The side surface of second limiting portion 409 away from locking rod 408 is a spherical surface, and when slidingly contacting with locking rod 408, it moves smoothly.

[0067] Further, the end of locking rod 408 away from second limiting portion 409 is provided with second abutting portion 406, which can abut against the thread of the inner wall of the mounting hole on the pattern block.

[0068] The pattern block includes a pattern block base body, and the pattern block base body is processed with a mounting hole, and the threaded sleeve 100 is installed in the mounting hole, and the locking piece 400 abuts against the mounting hole, so that the threaded sleeve 100 is prevented from loosening.

[0069] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A threaded sleeve locking quick change assembly, characterized by, The device comprises a threaded sleeve (100), a locking operating rod (200), a locking piece (400) and a fastener (300); The threaded sleeve (100) comprises a main connecting part (101) and a locking part (106), the locking part (106) is connected with the inner end of the main connecting part (101); the first cavity (104) is arranged in the locking part (106), and the first cavity (104) extends radially to the outer side of the locking part (106); the through hole (103) is arranged in the main connecting part (101), and the through hole (103) extends along the axial direction of the threaded sleeve (100) and communicates with the first cavity (104); The locking operating rod (200) is located in the through hole (103), and the locking piece (400) is located in the first cavity (104); the inner end of the locking operating rod (200) extends into the first cavity (104) and cooperates with the fastener (300) to control the locking piece (400) to extend radially outward from the first cavity (104) or retract.

2. A threaded sleeve locking quick change assembly according to claim 1, wherein, The threaded hole (102) is arranged in the main connecting part (101), and the threaded hole (102) extends into the locking part (106); And / or, the outer diameter of the locking part (106) is smaller than the outer diameter of the main connecting part (101); And / or, the outer side of the main connecting part (101) is provided with external threads; And / or, the through hole (103) is threadedly connected with the locking operating rod (200); And / or, the number of the through hole (103) and the first cavity (104) is two, and they are symmetrically arranged on the threaded sleeve (100); And / or, the locking part (106) is provided with an auxiliary mounting hole (105), one end of the auxiliary mounting hole (105) communicates with the first cavity (104), and the other end is opened on the inner end face of the locking part (106).

3. A threaded sleeve locking quick change assembly according to claim 1, wherein, The locking piece (400) comprises an elastic sheet (401), and the elastic sheet (401) has at least one recess (404) in the radial direction of the threaded sleeve (100); the elastic sheet (401) is provided with a first through hole (402), and the first through hole (402) is located at the recess (404) and is a long strip-shaped hole; The elastic sheet (401) is located in the first cavity (104), one end of the elastic sheet (401) abuts against the inner wall of the first cavity (104), and the other end extends outward from the first cavity (104).

4. A threaded sleeve locking quick change assembly according to claim 3, wherein, The fastener (300) comprises a first limiting part (301) and a first connecting part (302) connected with each other, the outer diameter of the first limiting part (301) is greater than the width of the first through hole (402), and the outer diameter of the first connecting part (302) is smaller than the width of the first through hole (402); The outer diameter of the locking operating rod (200) is greater than the width of the first through hole (402); The first limiting part (301) and the locking operating rod (200) are respectively located on both sides of the elastic sheet (401), and the first connecting part (302) passes through the first through hole (402) and is connected with the inner end of the locking operating rod (200).

5. A threaded sleeve locking quick change assembly according to claim 3, wherein, The elastic sheet (401) is provided with a first abutting part (405) at one end of the first cavity (104) extending outward.

6. A threaded sleeve locking quick change assembly according to claim 1, wherein, The locking part (400) comprises a locking rod (408) and an elastic element (407), one end of the locking rod (408) is located in the first cavity (104) and is fixedly connected with a second limiting part (409), the other end of the locking rod (408) extends outward from the first cavity (104); the fastener (300) is located in the first cavity (104), and both ends of the elastic element (407) abut against the second limiting part (409) and the fastener (300) respectively.

7. A threaded sleeve locking quick change assembly according to claim 6, wherein, The fastener (300) comprises a second connecting part (305) and a third limiting part (304) connected with each other, the second connecting part (305) is fixed in the first cavity (104); the second connecting part (305) is provided with an adjusting cavity (303) communicating with the first cavity (104), the locking rod (408) passes through the adjusting cavity (303) and extends outward from the first cavity (104); the third limiting part (304) is located at one end of the elastic element (407) away from the second limiting part (409).

8. A threaded sleeve locking quick change assembly according to claim 6, wherein, The inner end of the locking operating rod (200) is provided with a conical surface (203), and the conical surface (203) abuts against the second limiting part (409).

9. A threaded sleeve locking quick change assembly according to claim 8, wherein, The side surface of the second limiting part (409) abutting against the conical surface (203) is a spherical surface. And / or, one end of the locking rod (408) extending outward from the first cavity (104) is provided with a second abutting part (406).

10. A pattern block characterised in that The pattern block base body is provided with a mounting hole, the threaded sleeve (100) is connected with the mounting hole, and the locking part (400) radially extends outward from the threaded sleeve (100) and abuts against the inner wall of the mounting hole.

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