CN203423245U - Fine-tuning mechanism and angle adjustment device with fine-tuning mechanism - Google Patents

Abstract

A fine adjustment mechanism and an angle adjustment device with the fine adjustment mechanism. This fine-tuning includes: a locking component, a fine tuning bolt, a dial and a fixing component; the fine adjustment bolt comprises a stud and a bolt head formed at one end of the stud, wherein the stud is provided with a threaded section which is rotatably screwed in the locking assembly, a connecting section which is connected between the threaded section and the bolt head, and a convex ring which is radially and outwards protruded from the outer surface of the connecting section and is spaced from the bolt head; the dial is sleeved on the connecting section of the stud and is positioned between the bolt head and the convex ring at intervals; the holding component is integrally formed on the fine tuning bolt and covers the convex ring, and the connecting section is adjacent to the part at the opposite end of the convex ring, and the fine tuning bolt is rotatably pivoted with the holding component. The utility model discloses an each subassembly is comparatively simple and easy in design and manufacturing, and its equipment complex manufacturing qualification rate is higher.

Description

Fine-tuning mechanism and angle adjustment device with fine-tuning mechanism

technical field

The utility model relates to a fine-tuning mechanism and an angle adjusting device with the fine-tuning mechanism, in particular to a fine-tuning mechanism for fine-tuning the angle of a satellite antenna and an angle adjusting device with the fine-tuning mechanism.

Background technique

Referring to Fig. 1 and Fig. 2, the existing angle adjustment device 100 for adjusting the angle of the satellite antenna includes two fine-tuning mechanisms 1 (only one of which is shown in Fig. The fine-tuning mechanism 1 includes a housing 11 , a locking bolt 12 , a fine-tuning bolt 13 , a dial 14 , a cap 15 , a nut 16 and a locking assembly 17 .

Referring to Fig. 2, Fig. 3 and Fig. 4, the casing 11 includes a base wall 111, and a surrounding wall 112 formed on the outer periphery of the base wall 111, the base wall 111 is formed with a perforation 113, the base wall 111 and the surrounding wall 112 are jointly defined An accommodating groove 114 communicated with the through hole 113 . The locking bolt 12 includes a stud 121 passing through the through hole 113 and screwed to the nut 16 , and a limiting block 122 formed at one end of the stud 121 and capable of being accommodated in the accommodating groove 114 . The fine-tuning bolt 13 includes a stud 131 that can be screwed to the locking assembly 17, a bolt head 132 formed at one end of the stud 131, and a protruding ring 133 protruding radially outward from the outer surface of the stud 131. The scale The plate 14 is sheathed on the stud 131 and adjacent to the bolt head 132 , and the protruding ring 133 is used to engage in a limiting slot 123 of the limiting block 122 . The cap 15 includes a cover body 151 for covering the fine adjustment bolt 13, and two buckle elastic pieces 152 protruding from the opposite side of the cover body 151. The cover body 151 forms a limit for the protrusion ring 133 to engage. Position slot 153, and two through slots 154 connected to the opposite end of the limit slot 153 for the accommodation of the stud 131, the two buckle elastic pieces 152 are respectively used to penetrate into the two card slots 115 surrounding the wall 112, and each A buckling surface 155 of the buckling elastic piece 152 is used for buckling on an end surface 116 of the surrounding wall 112 located at one end corresponding to the buckling slot 115 .

When it is desired to assemble the locking bolt 12, the trimming bolt 13 and the cap 15 to the casing 11, firstly, the locking bolt 12 is put into the receiving groove 114 of the casing 11, so that the stud 121 is inserted into the through hole 113 and The limiting block 122 abuts against the base wall 111 . Then, set the dial 14 on the stud 131 of the fine-tuning bolt 13 and make the dial 14 adjacent to the bolt head 132, and then assemble the fine-tuning bolt 13 on the casing 11 and the locking bolt 12, so that the stud 131 passes through the receiving groove 114 and the two grooves 117 surrounding the wall 112 , and the protruding ring 133 is engaged in the limiting groove 123 of the locking bolt 12 . Finally, the cap 15 is assembled on the casing 11. When the two buckle springs 152 of the cap 15 respectively penetrate into the two slots 115 and each buckle surface 155 is buckled on the corresponding end surface 116, the cap 15 The cover body 151 is positioned to cover the fine adjustment bolt 13 . At this time, the protruding ring 133 of the fine adjustment bolt 13 is locked in the limiting groove 153 , and the stud 131 is accommodated in the through groove 154 .

Due to the large number of components mentioned above, there are many steps in the assembly process, which easily consumes man-hours for assembly, and also easily leads to high manufacturing cost of the fine-tuning mechanism 1 in manufacturing. In addition, between the locking bolt 12 and the casing 11, between the fine-tuning bolt 13 and the casing 11, between the fine-tuning bolt 13 and the locking bolt 12, between the cap 15 and the fine-tuning bolt 13, and between the cap 15 and the casing There are assembly tolerances among the shells 11 , so the aforementioned components need to take into account the assembly tolerances when designing and manufacturing, so the design is more complicated and the manufacturing is not easy. Furthermore, due to the assembly tolerance between the stopper 122 of the locking bolt 12 and the base wall 111 of the casing 11, the assembly tolerance between the trimming bolt 13 and the stopper 122 of the locking bolt 12, and the cap 15 The accumulative tolerance accumulated by the assembly tolerances of the limiting groove 153 and the through groove 154 respectively matching with the protruding ring 133 and the stud 131 will cause each buckle elastic piece 152 of the cap 15 to fail to penetrate into the corresponding engaging groove 115 , therefore, the cap 15 cannot be assembled and positioned on the casing 11; or although each buckle elastic piece 152 penetrates into the corresponding slot 115, the buckle surface 155 of each buckle elastic piece 152 cannot be buckled tightly. On the corresponding end surface 116 , therefore, the locking bolt 12 , the trimming bolt 13 and the cap 15 will be loosened in the casing 11 . Due to the influence of the aforementioned factors, the failure rate of the assembly and cooperation among the casing 11 , the locking bolt 12 , the trimming bolt 13 and the cap 15 is relatively high.

Therefore, it is necessary to provide a fine adjustment mechanism and an angle adjustment device with the fine adjustment mechanism to solve the above problems.

Utility model content

Therefore, an object of the present invention is to provide a fine-tuning mechanism with a small number of components, which can reduce assembly man-hours and reduce manufacturing costs.

Another object of the present invention is to provide a fine-tuning mechanism, the components of which are relatively simple and easy to design and manufacture, and the assembly and matching rate of the components is relatively high.

Therefore, the fine-tuning mechanism of the present invention includes: a locking assembly, a fine-tuning bolt, a dial and a holding assembly; the fine-tuning bolt includes a stud, and a bolt head formed at one end of the stud, the stud has A threaded section rotatably screwed to the locking assembly, a connecting section connected between the threaded section and the bolt head, and a radially outwardly protruding from the outer surface of the connecting section and connected to the bolt head Spaced protruding rings; the dial is sleeved on the connection section of the stud and is spaced between the bolt head and the protruding ring; the holding component is integrally molded on the fine-tuning bolt and covers the The fixing component of the protruding ring, and the connecting section adjacent to the opposite end of the protruding ring, the fine adjustment bolt is rotatably pivotally connected to the fixing component.

The holding component includes a locking bolt and a cladding shell, the cladding shell is formed on the fine-tuning bolt and the locking bolt by in-molding, and the cladding shell covers the protruding ring, the The connection section is adjacent to the portion at the opposite end of the collar and a portion of the locking bolt.

The locking bolt is made of metal, and the cladding shell is made of plastic.

The cladding shell forms a pivot hole for the fine-tuning bolt to be pivotally connected to, the pivot hole has a large aperture portion for the protrusion ring to accommodate, and two opposite ends connected to the large aperture portion and for The small-diameter parts accommodated by the connecting section have a diameter smaller than that of the large-diameter part.

The locking bolt has a threaded column, and a limit block formed at one end of the threaded column, the limit block is formed with a limit groove for the convex ring to be accommodated, and the covering shell covers the The protruding ring, the portion of the connecting section adjacent to the opposite end of the protruding ring, the limiting block, and a part of the screwed post adjacent to the limiting block.

The limiting block includes an end surface opposite to one end of the screwed post, and two protrusions protruding from the end surface, the end surface and the two protrusions jointly define the limiting groove, the end surface and the two protrusions are respectively spaced apart from the convex ring.

The pivot hole also has two stop shoulders, and the corresponding stop shoulders are defined between the small aperture part and the large aperture part, and the two stop shoulders are respectively abutted against the two sides of the protruding ring. one on the opposite end of the annular end face.

The cladding shell also forms an accommodating groove for accommodating the limiting block, and a perforation communicating with the accommodating groove and allowing the threaded post to pass through.

The holding assembly forms a pivot hole for the fine-tuning bolt to be pivotally connected to, the pivot hole has a large aperture portion for the protrusion ring to accommodate, and two opposite ends of the large aperture portion communicate with each other for the connection The small-diameter parts accommodated by the segments, the diameter of each small-diameter part is smaller than the diameter of the large-diameter part.

The pivot hole also has two stop shoulders, and the corresponding stop shoulders are defined between the small aperture part and the large aperture part, and the two stop shoulders are respectively abutted against the two sides of the protruding ring. one on the opposite end of the annular end face.

An object of the present invention is to provide an angle adjustment device with a fine-tuning mechanism. The fine-tuning mechanism has a small number of components, which can reduce assembly man-hours and reduce manufacturing costs.

Another object of the present invention is to provide an angle adjustment device with a fine-tuning mechanism. The components of the fine-tuning mechanism are relatively simple and easy to design and manufacture, and the manufacturing yield of the components is relatively high.

Therefore, the angle adjustment device with a fine-tuning mechanism of the present utility model includes: a support frame and a fine-tuning mechanism; A holding component; the locking component is connected and positioned on the support frame; the fine-tuning bolt includes a stud, and a bolt head formed at one end of the stud, the stud has a rotatably screwed on the locking A threaded section of the assembly, a connecting section connected between the threaded section and the bolt head, and a collar protruding radially outward from the outer surface of the connecting section and spaced from the bolt head; the dial cover The connection section of the stud is located between the bolt head and the collar; the holding component is connected and positioned on the support frame, and the holding component is integrally formed on the fine-tuning bolt and covered The retaining component holding the protruding ring, and the connecting section adjacent to the opposite end of the protruding ring, the fine adjustment bolt is rotatably pivotally connected to the retaining component.

The holding assembly includes a locking bolt connected with the support frame, and a cladding shell, which is formed on the fine-tuning bolt and the locking bolt by in-molding, and the cladding shell Covers the collar, the connecting section adjacent to the opposite end of the collar, and a portion of the locking bolt.

The locking bolt is made of metal, and the cladding shell is made of plastic.

The cladding shell forms a pivot hole for the fine-tuning bolt to be pivotally connected to, the pivot hole has a large aperture portion for the protrusion ring to accommodate, and two opposite ends connected to the large aperture portion and for The small-diameter parts accommodated by the connecting section have a diameter smaller than that of the large-diameter part.

The locking bolt has a threaded column, and a limit block formed at one end of the threaded column, the limit block is formed with a limit groove for the convex ring to be accommodated, and the covering shell covers the The protruding ring, the portion of the connecting section adjacent to the opposite end of the protruding ring, the limiting block, and a part of the screwed post adjacent to the limiting block.

The limiting block includes an end surface opposite to one end of the screwed post, and two protrusions protruding from the end surface, the end surface and the two protrusions jointly define the limiting groove, the end surface and the two protrusions are respectively spaced apart from the convex ring.

The pivot hole also has two stop shoulders, and the corresponding stop shoulders are defined between the small aperture part and the large aperture part, and the two stop shoulders are respectively abutted against the two sides of the protruding ring. one on the opposite end of the annular end face.

The cladding shell also forms an accommodating groove for accommodating the limiting block, and a perforation communicating with the accommodating groove and allowing the threaded post to pass through.

The holding assembly forms a pivot hole for the fine-tuning bolt to be pivotally connected to, the pivot hole has a large aperture portion for the protrusion ring to accommodate, and two opposite ends of the large aperture portion communicate with each other for the connection The small-diameter parts accommodated by the segments, the diameter of each small-diameter part is smaller than the diameter of the large-diameter part.

The pivot hole also has two stop shoulders, and the corresponding stop shoulders are defined between the small aperture part and the large aperture part, and the two stop shoulders are respectively abutted against the two sides of the protruding ring. one on the opposite end of the annular end face.

The effect of the present utility model is that: the cladding shell is molded on the fine-tuning bolt and the locking bolt by in-mold molding and covers the protruding ring, and the connecting section is adjacent to the opposite end of the protruding ring, And a part of the locking bolt, so that the cladding shell can connect the fine-tuning bolt and the locking bolt together, thereby reducing the number of components for connecting and fixing the fine-tuning bolt and the locking bolt, so as to reduce assembly man-hours and reduce manufacturing costs. In addition, since the cladding shell will not be affected by the assembly tolerance between the protruding ring and the limiting groove during the molding process, the cladding shell, the fine-tuning bolt and the locking bolt and other components are designed It is relatively simple and easy to manufacture, and the assembly and cooperation rate of the covering shell, the fine-tuning bolt and the locking bolt is relatively high.

Description of drawings

Other features and effects of the present utility model will be clearly presented in the implementation manner with reference to the accompanying drawings, wherein:

Fig. 1 is a perspective view of an existing angle adjustment device, illustrating the assembly position of a fine-tuning mechanism;

Fig. 2 is a three-dimensional exploded view of the existing fine-tuning mechanism, illustrating the assembly relationship between the casing, the locking bolt, the fine-tuning bolt, the dial, the cap, the nut and the locking assembly;

Fig. 3 is a schematic cross-sectional view of the existing fine-tuning mechanism, illustrating the assembly relationship between the casing, the locking bolt, the fine-tuning bolt and the cap;

Fig. 4 is a schematic cross-sectional view of the existing fine-tuning mechanism, illustrating the assembly relationship between the casing, the locking bolt, the fine-tuning bolt and the cap;

Fig. 5 is a perspective view of a preferred embodiment of the angle adjustment device with a fine-tuning mechanism of the present invention, illustrating that the fine-tuning mechanism is connected between the first adjustment frame and the second adjustment frame;

Fig. 6 is a perspective view of a preferred embodiment of the angle adjustment device with a fine-tuning mechanism of the present invention viewed from another perspective, illustrating that another fine-tuning mechanism is connected between the fixed frame body and the first adjustment frame body;

Fig. 7 is a three-dimensional exploded view of the fine-tuning mechanism of a preferred embodiment of the angle adjustment device with the fine-tuning mechanism of the present invention, illustrating the assembly relationship between the locking component, the fine-tuning bolt, the dial and the holding component;

Fig. 8 is a partial three-dimensional exploded view of the fine-tuning mechanism of a preferred embodiment of the angle adjustment device with the fine-tuning mechanism of the present invention, illustrating the assembly relationship between the fine-tuning bolt and the holding assembly;

Fig. 9 is a schematic cross-sectional view taken along line II-I in Fig. 5, illustrating that the cladding shell covers the protruding ring, the connecting section is adjacent to the opposite end of the protruding ring, the limit block, and the screwed post are adjacent Part of the limit block;

Fig. 10 is an assembly schematic diagram of a preferred embodiment of the angle adjustment device with a fine-tuning mechanism of the present invention, illustrating that the convex ring of the fine-tuning bolt is accommodated in the limiting groove of the limiting block;

Figure 11 is a schematic diagram of the assembly of a preferred embodiment of the angle adjustment device with a fine-tuning mechanism of the present invention, illustrating that the cladding shell is integrally formed on the fine-tuning bolt and the locking bolt; and

FIG. 12 is a schematic cross-sectional view taken along line II-II in FIG. 11 , illustrating that the cladding shell is integrally formed on the fine-tuning bolt and the locking bolt.

Description of main component symbols:

200 Angle adjustment device 411 Thread segment

20 Support frame 412 Connecting section

21 Fixed frame body 413 Protruding ring

22 The first adjusting frame body 414 Ring end face

221 side plate 42 bolt head

222 Chute 5 5 Dial

23 Second adjusting frame body 6 Holding component

231 side plate 61 locking bolt

30 Fine-tuning mechanism 611 Screwed column

3 Locking component 612 Limiting block

31 Screw 613 End face

311 Stud 614 Convex part

312 Sleeve 615 Limiting groove

313 Groove 62 Covering the shell

314 Through Hole 621 Pivot Hole

32 Gasket 622 Large aperture part

33 Nut 623 Small bore

34 Connecting piece 624 Blocking shoulder

341 Screw hole 625 Accommodating slot

4 Fine adjustment bolt 626 Perforation

41 Stud 63 Nut

Detailed ways

Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same numerals.

Referring to Fig. 5 and Fig. 6, Fig. 5 and Fig. 6 are a preferred embodiment of the angle adjustment device with a fine-tuning mechanism of the present invention, the angle adjustment device 200 is used to adjust the angle of the satellite antenna (not shown in the figure), the angle adjustment The device 200 includes a support frame 20 and two fine-tuning mechanisms 30 .

The support frame 20 includes a fixed frame body 21, a first adjustment frame body 22 rotatably pivoted to the top of the fixed frame body 21, and a rotatably pivoted to the first adjustment frame body 22 and used for The second adjustment frame body 23 carrying the satellite antenna. One of the fine-tuning mechanisms 30 is connected between the fixed frame body 21 and the first adjusting frame body 22 for fine-tuning the azimuth of the satellite antenna, and the other fine-tuning mechanism 30 is connected between the first adjusting frame body 22 and the second adjusting frame body. Between the adjustment frames 23, in order to fine-tune the elevation angle of the satellite antenna. Since the structures of the two fine adjustment mechanisms 30 are the same, in the following description, only the fine adjustment mechanism 30 connected between the first adjustment frame body 22 and the second adjustment frame body 23 is used as an example for illustration.

Referring to FIG. 5 , FIG. 7 and FIG. 8 , the fine-tuning mechanism 30 includes a locking component 3 , a fine-tuning bolt 4 , a dial 5 , and a holding component 6 . The locking assembly 3 includes a screw 31 , two washers 32 , a nut 33 and a connecting piece 34 . The screw 31 has a stud 311, and a sleeve 312 formed at one end of the stud 311, the stud 311 is used to pass through the hole of the side plate 231 of the second adjustment frame body 23 (not shown in the figure). ), so that the sleeve 312 abuts against the outer surface of the side plate 231 . Two washers 32 are sleeved on the stud 311 and are located inside the side plate 231, and the nut 33 is screwed to the stud 311 and the washers 32 are pressed against the inner side of the side plate 231, so that the The locking assembly 3 can be connected and positioned on the side plate 231 . The sleeve 312 of the screw 31 is formed with a groove 313, and two through holes 314 respectively connected with the groove 313 for the fine adjustment bolt 4 to pass through, and the connecting piece 34 is passed through the groove 313 And a screw hole 341 corresponding to the positions of the through holes 314 is formed for screwing the fine adjustment bolt 4 .

The fine-tuning bolt 4 includes a stud 41 and a bolt head 42 formed at one end of the stud 41. The stud 41 has a threaded section 411 that is rotatably screwed to the locking assembly 3, and a threaded section 411 connected to the locking assembly 3. The connecting section 412 between the threaded section 411 and the bolt head 42, and a protruding ring 413 protruding radially outward from the outer surface of the connecting section 412 and spaced from the bolt head 42, the threaded section 411 passes through The through holes 314 of the screw 31 are rotatably screwed to the screw holes 341 of the connecting member 34 . The dial 5 is sleeved on the connecting section 412 of the stud 41 and is spaced between the bolt head 42 and the protruding ring 413 .

The holding assembly 6 is connected to the side plate 221 of the first adjusting frame body 22 positioned on the support frame 20, the holding assembly 6 is integrally formed on the fine-tuning bolt 4 and wraps around the protruding ring 413, and The connecting section 412 is adjacent to the opposite end of the protruding ring 413, so that the holding assembly 6 and the fine-tuning bolt 4 are connected together, thereby reducing the number of components holding the fine-tuning bolt 4, effectively reducing assembly man-hours and reducing manufacturing cost. In addition, the fine adjustment bolt 4 is rotatably pivoted to the holding assembly 6, whereby the fine adjustment bolt 4 can drive the locking assembly 3 to move along the axial direction of the stud 41 to fine adjust the second adjustment frame body 23 The angle of the frame body 22 is adjusted relative to the first one.

The specific structure and assembly method of the holding component 6 will be described in detail below:

Referring to FIG. 7 , FIG. 8 and FIG. 9 , in this embodiment, the holding component 6 includes a locking bolt 61 , a covering shell 62 and a nut 63 . The cladding shell 62 is made of plastic material, and the cladding shell 62 is molded on the fine-tuning bolt 4 and the locking bolt 61 by means of in-mold molding (Insert molding). Ring 413, the connecting section 412 adjacent to the opposite end of the protruding ring 413, and a part of the locking bolt 61, so that the cladding shell 62 can connect the trimmer bolt 4 and the locking bolt 61 together, by Therefore, the number of components for connecting and fixing the fine-adjusting bolt 4 and the locking bolt 61 can be reduced, thereby reducing assembly man-hours and manufacturing costs. The other part of the locking bolt 61 exposed from the covering shell 62 is used to pass through a chute 222 of the side plate 221 and screwed to the nut 63, so that the locking bolt 61 and the nut 63 It can be connected to and positioned on the side plate 221 . Since the locking bolt 61 and the nut 63 are respectively made of metal material, the structure is strong and can withstand relatively large force, therefore, the locking bolt 61 and the nut 63 can be firmly connected and positioned on the side plate 221 , to prevent the locking bolt 61 from breaking.

Specifically, the locking bolt 61 has a threaded post 611 and a limiting block 612 formed at one end of the threaded post 611 , the limiting block 612 includes an end surface 613 opposite to the end of the threaded post 611 , and two protrusions 614 protruding from the end surface 613 and spaced from each other, the end surface 613 and the protrusions 614 jointly define a limiting groove 615, the limiting groove 615 is used for the fine adjustment bolt 4 The convex ring 413 accommodates.

Referring to Fig. 7, Fig. 10 and Fig. 11, when assembling the holding assembly 6 with the fine-tuning bolt 4, first set the dial 5 on the connecting section 412 of the fine-tuning bolt 4, so that the dial 5 adjacent to the bolt head 42. Then, the protruding ring 413 of the fine-tuning bolt 4 is aligned with the limiting groove 615 of the locking bolt 61, and then the protruding ring 413 is inserted into the limiting groove 615, so that the limiting grooves 615 of the limiting block 612 The protrusion 614 abuts against the connecting section 412 . In this embodiment, the protruding ring 413 and the limiting groove 615 are in clearance fit, and the end surface 613 and the two protrusions 614 of the limiting block 612 are respectively spaced apart from the protruding ring 413 .

Referring to Fig. 9, Fig. 11 and Fig. 12, put the fine-tuning bolt 4, the dial 5 and the locking bolt 61 into a cavity (not shown) of a mold at the same time, and then inject molten plastic into the cavity , so that the molten plastic gradually fills the mold cavity and covers the locking bolt 61 and the fine-tuning bolt 4 . Since the protruding ring 413 and the limiting groove 615 are clearance fit, and the end face 613 and the two convex parts 614 of the limiting block 612 are spaced apart from the protruding ring 413 respectively, the molten plastic fills the During the mold cavity process, it will flow into the limiting groove 615 and fill up the gap between the end surface 613 and the protruding ring 413 and the gap between the two protruding portions 614 and the protruding ring 413 .

After the molten plastic fills the mold cavity and solidifies, the casing 62 integrally molded on the stud 41 of the trimming bolt 4 and the locking bolt 61 is formed. At this time, the covering shell 62 covers the protruding ring 413 , the connecting section 412 adjacent to the opposite end of the protruding ring 413 , the limiting block 612 , and the threaded post 611 adjacent to the limiting block 612 part, so that the cladding shell 62 connects the trimming bolt 4 and the locking bolt 61 together.

After the cladding shell 62 is cured and molded, the cladding shell 62 will form a pivot hole 621 for the pivoting of the fine-tuning bolt 4 , and the pivot hole 621 has a large-diameter portion for the protrusion ring 413 to accommodate. 622, two small aperture portions 623 connected to the opposite ends of the large aperture portion 622 and accommodated by the connecting section 412, and two stop shoulders 624, the apertures of each of the small aperture portions 623 are smaller than the apertures of the large aperture portion 622 , and each of the small aperture portion 623 and the large aperture portion 622 defines a corresponding blocking shoulder portion 624 . Since the two stopper shoulders 624 closely abut against the two opposite annular end surfaces 414 of the protruding ring 413 respectively, and there is no gap between each stopper shoulder 624 and the corresponding annular end surface 414, therefore , it can prevent the fine-adjustment bolt 4 from shaking relative to the casing 62 along the axial direction of the stud 41 during the rotation of the fine-adjustment bolt 4 relative to the connecting member 34 . In addition, the casing 62 also forms a receiving groove 625 for receiving the limiting block 612 , and a through hole 626 communicating with the receiving groove 625 and allowing the threaded post 611 to pass through. The threaded post 611 is used to pass through the sliding groove 222 of the side plate 221 , so that the covering shell 62 abuts against the outer surface of the side plate 221 , and is screwed to the threaded post 611 by the nut 63 And press against the inner surface of the side plate 221 , so that the holding component 6 can be connected and positioned on the side plate 221 .

Due to the flowability of the molten plastic, no matter whether the gap between the protruding ring 413 and the end surface 613 or the protrusions 614 is large or small, the molten plastic will flow into the mold cavity during filling. The limiting groove 615 is used to fill the aforementioned gaps and tightly cover the fine-tuning bolt 4 and the locking bolt 61, so that after the covering shell 62 is formed, the fine-tuning bolt 4 and the locking bolt 61 can be firmly connected and positioned on the covering shell 62 . Since the cladding shell 62 will not be affected by the assembly tolerance between the protruding ring 413 and the limiting groove 615 during the molding process, the cladding shell 62 , the trimming bolt 4 and the locking bolt 61 The components are relatively simple and easy to design and manufacture, and the assembly and cooperation rate of the covering shell 62, the fine-tuning bolt 4 and the locking bolt 61 is relatively high.

It should be noted that although the locking bolt 61 and the cladding shell 62 of the holding assembly 6 in this embodiment are described as two components of different materials as an example, in application, depending on the requirements, the Molten plastic or molten metal material is formed on the fine-tuning bolt 4 to form a single holding component that has both the cladding shell 62 and the locking bolt 61 structural features, so that the single holding component has the function of holding the fine-tuning bolt 4 Besides, it also has the function of being screwed to the nut 63 at the same time.

To sum up, the fine-tuning mechanism 30 of this embodiment is molded on the fine-tuning bolt 4 and the locking bolt 61 through the covering shell 62 in an in-mold manner, and wraps the protruding ring 413, the The connecting section 412 is adjacent to the position of the opposite end of the protruding ring 413 and a part of the locking bolt 61, so that the cladding shell 62 can connect the fine-tuning bolt 4 and the locking bolt 61 together, thereby reducing The number of components connecting and fixing the trimming bolt 4 and the locking bolt 61 is used to reduce assembly man-hours and manufacturing costs. In addition, since the cladding shell 62 will not be affected by the assembly tolerance between the protruding ring 413 and the limiting groove 615 during the molding process, it can also overcome the accumulated gap between the related assembly components existing in the prior art. Due to the influence of cumulative tolerances, the relevant assembly components cannot be assembled together or loose after assembly. Therefore, the design and manufacture of the cladding shell 62, the fine-tuning bolt 4, and the locking bolt 61 are relatively simple. And easy, and the assembly of the cladding shell 62, the fine-tuning bolt 4 and the locking bolt 61 has a high pass rate in manufacturing, so the purpose of the utility model can indeed be achieved.

But the above are only preferred embodiments of the utility model, and should not limit the scope of the utility model implementation, that is, all simple equivalents made according to the scope of the utility model claims and the contents of the patent specification Changes and modifications all still belong to the scope covered by the utility model patent.

Claims (20)

1. A fine-tuning mechanism, characterized in that, the fine-tuning mechanism comprises: a locking component; A fine-tuning bolt, the fine-tuning bolt includes a stud, and a bolt head formed at one end of the stud, the stud has a threaded section rotatably screwed to the locking assembly, a threaded section connected to the a connecting section between the bolt heads, and a collar projecting radially outward from the outer surface of the connecting section and spaced from the bolt head; a scale, the scale is sleeved on the connection section of the stud and is spaced between the bolt head and the collar; and A holding component, the holding component is integrally formed on the fine-tuning bolt and covers the holding component of the convex ring, and the connecting section is adjacent to the opposite end of the convex ring, the fine-tuning bolt is rotatably pivoted on the holding component. 2. The fine-tuning mechanism according to claim 1, wherein the retaining component comprises a locking bolt and a covering shell, and the covering shell is formed on the fine-tuning bolt and the lock by in-molding. The cladding shell on the fastening bolt, the cladding shell encloses the protruding ring, the position of the connection section adjacent to the opposite end of the protruding ring, and a part of the locking bolt. 3. The fine-tuning mechanism according to claim 2, wherein the locking bolt is a metal locking bolt, and the covering shell is a plastic covering shell. 4. The fine-tuning mechanism according to claim 3, characterized in that, the cladding shell forms a pivot hole for the fine-tuning bolt to pivot, and the pivot hole has a large hole for accommodating the protruding ring. Aperture part, and two small-diameter parts communicated with opposite ends of the large-aperture part and accommodated by the connection section, each of the small-diameter parts has a diameter smaller than that of the large-diameter part. 5. The fine-tuning mechanism as claimed in claim 4, wherein the locking bolt has a threaded post, and a limit block formed at one end of the threaded post, and the stop block is formed with a support for the protruding ring The limiting groove accommodates, the cladding shell covers the protruding ring, the portion of the connecting section adjacent to the opposite end of the protruding ring, the limiting block, and a part of the screwed post adjacent to the limiting block. 6. The fine-tuning mechanism according to claim 5, wherein the limit block includes an end face opposite to one end of the screwed post, and two protrusions protruding from the end face, the end face and the two protrusions The portion jointly defines the limiting groove, and the end surface and the two convex portions are respectively spaced apart from the convex ring. 7. The fine-tuning mechanism according to claim 6, wherein the pivot hole further has two stop shoulders, each of the small-diameter part and the large-aperture part defines a corresponding stop shoulder , the two stopper shoulders respectively abut against two annular end surfaces of the protruding ring at opposite ends. 8. The fine-tuning mechanism according to claim 6, characterized in that, the cladding shell is also formed with an accommodating groove for the limit block to be accommodated, and a receiving groove that communicates with the accommodating groove and is used for the screw connection. The perforation through which the column is pierced. 9. The fine-tuning mechanism according to claim 1, wherein the holding component forms a pivot hole for pivoting the fine-tuning bolt, and the pivot hole has a large-diameter portion for accommodating the protruding ring , and two small-diameter parts connected to opposite ends of the large-diameter part and accommodated by the connecting section, each of the small-diameter parts has a smaller diameter than the large-diameter part. 10. The fine-tuning mechanism as claimed in claim 9, wherein the pivot hole further has two stop shoulders, and the corresponding stop shoulders are defined between each of the small-diameter part and the large-aperture part , the two stopper shoulders respectively abut against two annular end surfaces of the protruding ring at opposite ends. 11. An angle adjustment device with a fine adjustment mechanism, the angle adjustment device with a fine adjustment mechanism comprising: a support frame; A fine-tuning mechanism, which is arranged on the support frame, is characterized in that the fine-tuning mechanism includes: a locking component, the locking component is connected and positioned on the support frame; A fine-tuning bolt, the fine-tuning bolt includes a stud, and a bolt head formed at one end of the stud, the stud has a threaded section rotatably screwed to the locking assembly, a threaded section connected to the a connecting section between the bolt heads, and a collar projecting radially outward from the outer surface of the connecting section and spaced from the bolt head; a scale, the scale is sleeved on the connection section of the stud and is spaced between the bolt head and the collar; and A holding component, the holding component is connected and positioned on the support frame, the holding component is integrally formed on the fine-tuning bolt and covers the holding component of the convex ring, and the connecting section is adjacent to the convex ring and opposite The fine adjustment bolt is rotatably pivoted to the holding assembly. 12. The angle adjustment device with a fine-tuning mechanism as claimed in claim 11, wherein the holding assembly comprises a locking bolt connected to the support frame, and a covering shell, the covering shell is The cladding shell formed on the fine adjustment bolt and the locking bolt by in-mold molding, the cladding shell covers the protruding ring, the connecting section adjacent to the opposite end of the protruding ring, and the locking part of the bolt. 13. The angle adjusting device with a fine-tuning mechanism as claimed in claim 12, wherein the locking bolt is a metal locking bolt, and the covering shell is a plastic covering shell. 14. The angle adjusting device with fine adjustment mechanism according to claim 13, characterized in that, the covering shell forms a pivot hole for the fine adjustment bolt to pivot, and the pivot hole has a hole for the protrusion The large-aperture portion accommodated by the ring, and two small-aperture portions connected to opposite ends of the large-aperture portion and accommodated by the connecting section, each of the small-aperture portions has a smaller aperture than the large-aperture portion. 15. The angle adjustment device with a fine-tuning mechanism as claimed in claim 14, characterized in that, the locking bolt has a threaded post, and a limit block formed at one end of the threaded post, and the stop block forms There is a limiting slot for the protruding ring to accommodate, the cladding shell covers the protruding ring, the connecting section adjacent to the opposite end of the protruding ring, the limiting block, and the screwed post adjacent to the limiting Part of a bit block. 16. The angle adjusting device with a fine-tuning mechanism as claimed in claim 15, wherein the limit block includes an end surface opposite to the end of the screwed post, and two protrusions protruding from the end surface, the The end face and the two protrusions jointly define the limiting groove, and the end face and the two protrusions are respectively spaced apart from the protrusion ring. 17. The angle adjusting device with a fine-tuning mechanism as claimed in claim 16, characterized in that, the pivot hole further has two stop shoulders, each of the small aperture portion and the large aperture portion defines a corresponding The stop shoulder, the two stop shoulders are respectively abutted against two annular end surfaces of the protruding ring which are located at opposite ends. 18. The angle adjustment device with fine adjustment mechanism as claimed in claim 16, characterized in that, the covering shell is further formed with a receiving groove for the limit block to be accommodated, and a receiving groove communicated with the receiving groove And a perforation for the threaded column to pass through. 19. The angle adjustment device with fine adjustment mechanism according to claim 11, characterized in that, the holding component forms a pivot hole for the fine adjustment bolt to pivot, and the pivot hole has a hole for the convex ring to accommodate The large-aperture part, and two small-aperture parts connected to the opposite ends of the large-aperture part and accommodated by the connecting section, each of the small-aperture parts has a smaller aperture than the large-aperture part. 20. The angle adjusting device with a fine-tuning mechanism as claimed in claim 19, wherein the pivot hole further has two stop shoulders, each of the small aperture portion and the large aperture portion defines a corresponding The stop shoulder, the two stop shoulders are respectively abutted against two annular end surfaces of the protruding ring which are located at opposite ends.

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