Spacing-adjustable synchronous tightening device

Abstract

The utility model relates to a synchronous tightening device with an adjustable interval. The synchronous tightening device comprises a force application wrench, a first gear wrench, a second gear wrench and a connecting piece, the force application wrench is in meshing transmission with the first gear wrench and the second gear wrench, and the force application wrench, the first gear wrench and the second gear wrench are all connected to the connecting piece and can rotate relative to the connecting piece; and the first gear wrench and / or the second gear wrench are / is adjustable around the circumferential position of the force application wrench so as to change the distance between the first gear wrench and the second gear wrench. According to the utility model, synchronous tightening can be realized; and the screw tightening device is suitable for tightening screws with different intervals, and has a wider application range.

Description

Technical Field

[0001] This utility model relates to the field of optical equipment technology, and in particular to a synchronous tightening device with adjustable spacing. Background Technology

[0002] In optical instruments, the stability and precision of the frame directly affect the performance and image quality of the equipment. Traditionally, frames are mostly secured with double screws. While this design provides a certain level of mechanical strength, in practical applications, the individual tightening of the two screws often results in inconsistent tightening torques. This uneven torque distribution causes stress concentration between the screws, leading to structural deformation, loosening, and even misalignment of optical components. In severe cases, it can even reduce the precision and reliability of the optical instrument. These problems urgently need to be addressed. Utility Model Content

[0003] This utility model discloses a synchronous tightening device with adjustable spacing, which aims to solve the technical problems existing in the prior art.

[0004] The present invention adopts the following technical solution:

[0005] This utility model provides a synchronous tightening device with adjustable spacing, which includes a force-applying wrench, a first gear wrench, a second gear wrench, and a connecting member; the force-applying wrench is engaged with the first gear wrench and the second gear wrench respectively, and the force-applying wrench, the first gear wrench, and the second gear wrench are all connected to the connecting member and can rotate relative to the connecting member; the circumferential position of the first gear wrench and / or the second gear wrench is adjustable around the force-applying wrench to change the distance between the first gear wrench and the second gear wrench.

[0006] In the adjustable-pitch synchronous tightening device of this utility model, the first gear wrench includes a first mounting base and a first wrench; the first mounting base is connected to the connecting member and its circumferential position is adjustable around the force-applying wrench, and the side of the first mounting base adjacent to the force-applying wrench has a first opening; the first wrench is rotatably connected to the first mounting base, and its first tooth engages with the force-applying wrench through the first opening, and one end protrudes from the first mounting base to form a first wrench portion; and / or, the second gear wrench includes a second mounting base and a second wrench; the second mounting base is connected to the connecting member and its circumferential position is adjustable around the force-applying wrench, and the side of the second mounting base adjacent to the force-applying wrench has a second opening; the second wrench is rotatably connected to the second mounting base, and its second tooth engages with the force-applying wrench through the second opening, and one end protrudes from the first mounting base to form a second wrench portion.

[0007] In the adjustable-spacing synchronous tightening device of this utility model, the connector has an arc-shaped hole; the first mounting base is adjustablely connected to the connector by inserting a first screw through the arc-shaped hole; and / or, the second mounting base is adjustablely connected to the connector by inserting a second screw through the arc-shaped hole.

[0008] In the adjustable-pitch synchronous tightening device of this utility model, the connecting member is provided with a sliding groove; one end of the first wrench is located in the sliding groove and has a circular cross-section, and is in clearance fit with the sliding groove, while the other end is rotatably connected to the first mounting base; and / or, one end of the second wrench is located in the sliding groove and has a circular cross-section, and is in clearance fit with the sliding groove, while the other end is rotatably connected to the second mounting base.

[0009] In the adjustable-spacing synchronous tightening device of this utility model, the groove is an annular groove.

[0010] In the adjustable-pitch synchronous tightening device of this utility model, one end of the force-applying wrench is rotatably connected to the connecting member, and the other end is rotatably connected to the first mounting base; and / or, one end of the force-applying wrench is rotatably connected to the connecting member, and the other end is rotatably connected to the second mounting base.

[0011] In the adjustable-pitch synchronous tightening device of this utility model, the first wrench includes a first tooth and a first wrench part; the first tooth is located in the first mounting seat and engages with the force-applying wrench for transmission; the first wrench part extends out of the first mounting seat and is rotatably connected to the first mounting seat for tightening.

[0012] In the adjustable-pitch synchronous tightening device of this utility model, the second wrench includes a second tooth and a second wrench part; the second tooth is located in the second mounting seat and engages with the force-applying wrench for transmission; the second wrench part extends out of the second mounting seat and is rotatably connected to the second mounting seat for tightening.

[0013] In the adjustable-pitch synchronous tightening device of this utility model, the force-applying wrench includes a third tooth and a force-applying part; the end of the force-applying part extends out of one side of the connector to form a force-applying end; the third tooth engages with the first wrench and the second wrench.

[0014] In the adjustable-pitch synchronous tightening device of this utility model, the end of the force-applying wrench protrudes from one side of the connecting member to form a force-applying end; the first gear wrench and the second gear wrench form a wrench portion on the other side of the connecting member.

[0015] The technical solution adopted in this utility model can achieve the following beneficial effects:

[0016] This utility model mainly provides a synchronous tightening device with adjustable spacing. Based on the meshing and transmission of a force-applying wrench with a first gear wrench and a second gear wrench respectively, when the force-applying wrench is tightened, the first gear wrench and the second gear wrench can be driven to rotate simultaneously to achieve synchronous tightening. Furthermore, by setting the first gear wrench and / or the second gear wrench to be able to adjust their position around the circumference of the force-applying wrench, the distance between the first gear wrench and the second gear wrench can be adjusted to suit the tightening of screws with different spacings, thereby improving the applicability range. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below, forming part of this utility model. The illustrative embodiments of this utility model and their descriptions explain this utility model and do not constitute an improper limitation of this utility model. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a synchronous tightening device with adjustable spacing according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of a synchronous tightening device with adjustable spacing according to the present invention.

[0020] Figure 3 This is a structural diagram of the force-applying wrench, the first wrench, and the second wrench of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first mounting base and the second mounting base of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Force-applying wrench; 11. Third tooth; 12. Force-applying part; 2. First gear wrench; 21. First mounting base; 211. First opening; 212. First receiving part; 2121. Base plate; 2122. Side wall; 213. First edge part; 22. First wrench; 221. First tooth; 222. First wrench part; 23. First screw; 3. Second gear wrench; 31. Second mounting base; 311. Second opening; 312. Second receiving part; 3121. Second base plate; 3122. Second side wall; 313. Second edge part; 32. Second wrench; 321. Second tooth; 322. Second wrench part; 33. Second screw; 4. Connector; 41. Arc-shaped hole; 42. Slide groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this utility model, it should be noted that the term "or" is generally used to include the meaning of "and / or," unless otherwise expressly stated otherwise.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a magnetic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0026] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] To address the problems existing in the prior art, this application provides a synchronous tightening device with adjustable spacing.

[0028] like Figure 1 As shown, a synchronous tightening device with adjustable spacing includes a force-applying wrench 1, a first gear wrench 2, a second gear wrench 3, and a connecting member 4. The force-applying wrench 1 meshes with the first gear wrench 2 and the second gear wrench 3 respectively, and the force-applying wrench 1, the first gear wrench 2, and the second gear wrench 3 are all connected to the connecting member 4 and can rotate relative to the connecting member 4 with parallel rotation axes. The circumferential position of the first gear wrench 2 and / or the second gear wrench 3 around the force-applying wrench 1 is adjustable to change the distance between the first gear wrench 2 and the second gear wrench 3.

[0029] This utility model discloses a synchronous tightening device with adjustable spacing. Based on the meshing and transmission of a force-applying wrench 1 with a first gear wrench 2 and a second gear wrench 3, when the force-applying wrench 1 is tightened, the first gear wrench 2 and the second gear wrench 3 can be driven to rotate simultaneously to achieve synchronous tightening. Furthermore, by setting the first gear wrench 2 and / or the second gear wrench 3 to be able to adjust their position upward around the force-applying wrench 1, the distance between the first gear wrench 2 and the second gear wrench 3 can be adjusted to suit the tightening of screws with different spacings, thereby improving the applicability range.

[0030] In some preferred embodiments, such as Figure 2 As shown, the first gear wrench 2 includes a first mounting base 21 and a first wrench 22; the first mounting base 21 is connected to the connecting member 4 and its position is adjustable around the force-applying wrench 1; the side of the first mounting base 21 adjacent to the force-applying wrench 1 has a first opening 211; the first wrench 22 is rotatably connected to the first mounting base 21, and its first tooth 221 engages with the force-applying wrench 1 via the first opening 211, with one end protruding from the first mounting base 21 to form a first wrench portion 222; and / or, the second gear wrench 3 includes a second mounting base 31 and a second wrench 32; the second mounting base 31 is connected to the connecting member 4 and its position is adjustable around the force-applying wrench 1; the side of the second mounting base 31 adjacent to the force-applying wrench 1 has a second opening 311; the second wrench 32 is rotatably connected to the second mounting base 31, and... The second tooth 321 engages with the force-applying wrench 1 via the second opening 311, and one end protrudes from the first mounting seat 21 to form the second wrench portion 322. Preferably, the connector 4 is provided with multiple mounting positions, and the first mounting seat 21 is connected to different mounting positions to change its position. Alternatively, the connector 4 is provided with a long mounting hole to adjust the position of a mounting seat 21, or other methods that can achieve position adjustment are acceptable. The adjustable connection method between the second mounting seat 31 and the connector 4 is the same as the connection method between the first mounting seat 21 and the connector 4, and will not be described again. Based on the fact that the first wrench 22 is mounted on the first mounting seat 21 and the second wrench 32 is mounted on the second mounting seat 31, it is convenient to adjust only the first mounting seat 21 or the second mounting seat 31.

[0031] Preferably, such as Figure 2 and Figure 4As shown, the first mounting base 21 includes a first receiving portion 212 and a first edge portion 213; the first receiving portion 212 includes a base plate 2121 and a side wall 2122, the side wall 2122 is a non-closed cylindrical structure, one end edge is connected to the edge of the base plate 2121, and the other end is connected to the first edge portion 213; the first edge portion 213 extends outward along the edge of the side wall 2122 and fits against the connector 4; the first wrench 22 is rotatably connected to the base plate 2121; based on this, on the one hand, the first wrench 22 is installed, and on the other hand, the first edge portion 213 provides a larger contact area with the connector 4 during adjustment, improving the stability during position adjustment; specifically, the connector 4 can be a plate-like structure.

[0032] Preferably, such as Figure 2 and Figure 4 As shown, the second mounting base 31 includes a second receiving portion 312 and a second edge portion 313; the second receiving portion 312 includes a second base plate 3121 and a second side wall 3122, the second side wall 3122 is a non-closed cylindrical structure, one end edge is connected to the edge of the second base plate 3121, and the other end is connected to the second edge portion 313; the second edge portion 313 extends outward along the edge of the second side wall 3122 and fits against the connecting member 4; the second wrench 32 is rotatably connected to the second base plate 3121; based on this, on the one hand, the second wrench 32 is installed, and based on the provided second edge portion 313, it has a larger contact area with the connecting member 4 during adjustment, improving the stability during position adjustment; specifically, the connecting member 4 can be a plate-like structure.

[0033] In some preferred embodiments, such as Figure 1 and Figure 3 As shown, the connector 4 has an arc-shaped hole 41; the first mounting base 21 is adjustablely connected to the connector 4 by inserting a first screw 23 through the arc-shaped hole 41; and / or, the second mounting base 31 is adjustablely connected to the connector 4 by inserting a second screw 33 through the arc-shaped hole 41; based on this, the positions of the first mounting base 21 and the second mounting base 31 can be continuously adjusted, thereby continuously adjusting the distance between the first wrench 22 and the second wrench 32, thus improving the applicability range.

[0034] In some preferred embodiments, such as Figure 3As shown, the connector 4 is provided with a slide groove 42; one end of the first wrench 22 is located in the slide groove 42 and has a circular cross-section, and is clearance-fitted with the slide groove 42, while the other end is rotatably connected to the first mounting base 21; and / or, one end of the second wrench 32 is located in the slide groove 42 and has a circular cross-section, and is clearance-fitted with the slide groove 42, while the other end is rotatably connected to the second mounting base 31; the slide groove 42 limits the ends of the first wrench 22 and / or the second wrench 32, improving their stability during rotation and increasing the accuracy during position adjustment.

[0035] Preferably, the groove 42 is an annular groove; thus, it provides a larger installation size and improves the speed of installation, that is, simply install the first wrench 22 and the second wrench 32 in the annular groove, and then move them to the desired position in the annular groove.

[0036] In some preferred embodiments, such as Figure 2 and Figure 4 As shown, one end of the force-applying wrench 1 is rotatably connected to the connector 4, and the other end is rotatably connected to the first mounting base 21, specifically, it is rotatably connected to the first base plate 2121 of the first mounting base 21; and / or, one end of the force-applying wrench 1 is rotatably connected to the connector 4, and the other end is rotatably connected to the second mounting base 31, specifically, it is rotatably connected to the first base plate 2121 of the second mounting base 31; since both ends of the force-applying wrench 1 are rotatably connected, its rotation axis is more stable when it rotates. In addition, the first mounting base 21 and the second mounting base 31 are also rotatably connected to the end of the force-applying wrench 1. Therefore, when it is adjusted in position, it can rotate stably around the force-applying wrench 1, and the force-applying wrench 1 can be turned to drive the first wrench 22 or the second wrench 32, thereby driving the first mounting base 21 and the second mounting base 31 to rotate around the axis of the force-applying wrench 1, which facilitates position adjustment.

[0037] In some preferred embodiments, such as Figure 3 As shown, the first wrench 22 includes a first tooth 221 and a first wrench portion 222; the first tooth 221 is located inside the first mounting base 21 and engages with the force-applying wrench 1 for transmission; the first wrench portion 222 extends out of the first mounting base 21 and is rotatably connected to the first mounting base 21 for tightening.

[0038] In some preferred embodiments, such as Figure 3 As shown, the second wrench 32 includes a second toothed portion 321 and a second wrench portion 322; the second toothed portion 321 is located inside the second mounting base 31 and engages with the force-applying wrench 1 for transmission; the second wrench portion 322 extends out of the second mounting base 31 and is rotatably connected to the second mounting base 31 for tightening.

[0039] In some preferred embodiments, such as Figure 2As shown, the force-applying wrench 1 includes a third tooth 11 and a force-applying part 12; the end of the force-applying part 12 extends out of the connector 4 to form a force-applying end; the third tooth 11 engages with the first wrench 22 and the second wrench 32.

[0040] In some preferred embodiments, such as Figure 1 As shown, the end of the force-applying wrench 1 protrudes from one side of the connector 4 to form the force-applying end; the first gear wrench 2 and the second gear wrench 3 form the wrench part on the other side of the connector 4; preferably, the force-applying end is an internal hexagonal hole; the wrench part is a regular hexagonal prism; of course, other shapes of structures are also possible, depending on the specific requirements.

[0041] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A pitch adjustable synchronous tightening device characterized by, The force applying wrench, the first gear wrench, the second gear wrench and the connecting piece are included. The force applying wrench is engaged with the first gear wrench and the second gear wrench respectively, and the force applying wrench, the first gear wrench and the second gear wrench are connected to the connecting piece and can rotate relative to the connecting piece. The first gear wrench and / or the second gear wrench is adjustable in circumferential position around the force applying wrench to change the distance between the first gear wrench and the second gear wrench.

2. The adjustable distance synchronous tightening device according to claim 1, wherein The first gear wrench includes a first mounting seat and a first wrench. The first mounting seat is connected to the connecting piece and is adjustable in circumferential position around the force applying wrench, and one side of the first mounting seat adjacent to the force applying wrench has a first opening. The first wrench is rotationally connected to the first mounting seat, and a first tooth part is engaged with the force applying wrench through the first opening, and one end of the first wrench is exposed from the first mounting seat to form a first wrench part. And / or The second gear wrench includes a second mounting seat and a second wrench. The second mounting seat is connected to the connecting piece and is adjustable in circumferential position around the force applying wrench, and one side of the second mounting seat adjacent to the force applying wrench has a second opening. The second wrench is rotationally connected to the second mounting seat, and a second tooth part is engaged with the force applying wrench through the second opening, and one end of the second wrench is exposed from the first mounting seat to form a second wrench part.

3. The adjustable spacing synchronous tightening device according to claim 2, characterized in that An arc-shaped hole is formed in the connecting piece. The first mounting seat is adjustably connected to the connecting piece by screwing a first screw through the arc-shaped hole; and / or The second mounting seat is adjustably connected to the connecting piece by screwing a second screw through the arc-shaped hole.

4. The adjustable spacing synchronous tightening device according to claim 2, characterized in that, A sliding groove is arranged on the connecting piece. One end of the first wrench is located in the sliding groove and has a circular cross section and is gap-fitted with the sliding groove, and the other end is rotationally connected to the first mounting seat; and / or One end of the second wrench is located in the sliding groove and has a circular cross section and is gap-fitted with the sliding groove, and the other end is rotationally connected to the second mounting seat.

5. The adjustable spacing synchronous tightening device according to claim 4, characterized in that The sliding groove is an annular groove.

6. The adjustable spacing synchronous tightening device of claim 2, wherein, One end of the force applying wrench is rotationally connected to the connecting piece, and the other end is rotationally connected to the first mounting seat; and / or One end of the force applying wrench is rotationally connected to the connecting piece, and the other end is rotationally connected to the second mounting seat.

7. The adjustable distance synchronous tightening device according to claim 2, wherein The first wrench includes a first tooth part and a first wrench part. The first tooth part is located in the first mounting seat and is engaged with the force applying wrench. The first wrench part is exposed from the first mounting seat and is rotationally connected to the first mounting seat for tightening.

8. The adjustable distance synchronous tightening device according to claim 2, wherein The second wrench includes a second tooth part and a second wrench part. The second tooth part is located in the second mounting seat and is engaged with the force applying wrench. The second wrench part is exposed from the second mounting seat and is rotationally connected to the second mounting seat for tightening.

9. The adjustable distance synchronous tightening device according to claim 2, wherein the force applying wrench comprises a third gear portion and a force applying portion; the force applying portion extends to one side of the connecting member to form a force applying end; the third gear portion engages with the first wrench and the second wrench.

10. The adjustable distance synchronous tightening device according to claim 1, wherein the force applying wrench extends to one side of the connecting member to form a force applying end; the first gear wrench and the second gear wrench extend to the other side of the connecting member to form a wrench portion. ​ ​

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