Adapter for optical element fixing rod

Abstract

The invention provides an adapter for an optical element fixing rod, the fixing rod is used for fixing an optical element, the adapter comprises a main body block and a wedge, the main body block is provided with an insertion hole and a wedge-shaped hole, the insertion hole is used for inserting the fixing rod, and the wedge-shaped hole penetrates through the main body block. The circumferential surface of the wedge-shaped hole and the circumferential surface of the insertion hole intersect to form an arc-shaped opening communicating the insertion hole and the wedge-shaped hole; the wedge comprises an outer peripheral surface matched with the surface of the wedge-shaped hole and an abutting surface protruding into the insertion hole from the arc-shaped opening. The wedge can move into the wedge-shaped hole and is locked, so that the abutting surface abuts against the outer peripheral surface of the fixing rod, the pressure of the abutting surface of the wedge on the outer peripheral surface of the fixing rod is increased, and the fixing rod and the adapter are fixed more firmly; compared with other fixing modes, the contact area of the abutting face of the wedge and the fixing rod is larger, the clamping force is larger, and the wedge fixing device is more suitable for occasions with heavy loads. And meanwhile, the problem of obvious displacement in the fastening process is also avoided.

Description

Technical Field

[0001] The present invention relates to an adapter for an optical element fixing rod. Background Art

[0002] In an optical system, optical elements often need to adjust their positions and postures according to different requirements. The optical elements are usually fixed on a fixing rod, and the end of the fixing rod is installed on the adapter. The adapter is used for extending the fixing rod, or for changing the direction of the fixing rod, or for adjusting the position of the fixing rod.

[0003] Currently, the fixing method of the adapters sold on the market is to use a screw to press against the fixing rod, which results in a small force-bearing area of the fixing rod, and the fixing is not very firm. When encountering a fixing rod or an optical element with a slightly heavier weight, it is extremely easy to move. Moreover, in the case of precise positioning, due to the rotation when tightening the screw, the position of the fixing rod will have some obvious movements, resulting in positioning failure. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect that the fixing rod for fixing optical elements is prone to displacement when fixed to the adapter in the prior art, and to provide an adapter for an optical element fixing rod.

[0005] The present invention solves the above technical problem through the following technical solutions:

[0006] The present invention provides an adapter for an optical element fixing rod. The fixing rod is used for fixing an optical element. The adapter includes a main body block and a wedge. The main body block is provided with an insertion hole and a wedge-shaped hole. The insertion hole is used for inserting the fixing rod. The wedge-shaped hole penetrates through the main body block. The peripheral surface of the wedge-shaped hole intersects with the peripheral surface of the insertion hole to form an arc-shaped opening communicating the insertion hole and the wedge-shaped hole. The wedge includes an outer peripheral surface matching the surface of the wedge-shaped hole and an abutting surface protruding from the arc-shaped opening into the insertion hole. The wedge can move into the wedge-shaped hole and be locked, so that the abutting surface abuts against the outer peripheral surface of the fixing rod.

[0007] In this technical solution, after the wedge moves into the wedge-shaped hole and is locked, the abutting surface abuts against the outer peripheral surface of the fixing rod. The pressure of the abutting surface of the wedge on the outer peripheral surface of the fixing rod increases, making the fixing of the fixing rod and the adapter more firm. Compared with other fixing methods, the contact area between the abutting surface of the wedge and the fixing rod is larger, and the clamping force is also larger, which is more suitable for heavier load occasions. At the same time, the problem of obvious displacement is also avoided during the tightening process.

[0008] Preferably, the adapter further includes a locking member. The wedge is inserted into the wedge-shaped hole from the large port of the wedge-shaped hole, and the locking member is inserted into the wedge-shaped hole from the small port of the wedge-shaped hole; the locking member can be connected to and locked with the inner end surface of the wedge, so that the wedge can move in the direction of the locking member.

[0009] In this technical solution, by providing a locking member inserted from the small port of the wedge-shaped hole, the locking of the wedge is more convenient; the pulling force of the locking member on the wedge and the pressing force of the abutting surface on the fixing rod are in the same direction, so that after the fixing rod is locked, the clamping force is relatively stable and it is not easy to loosen.

[0010] Preferably, the small port of the wedge-shaped hole forms a first accommodation space for inserting the locking member, the large port of the wedge-shaped hole forms a second accommodation space for inserting the wedge, a partition is formed between the first accommodation space and the second accommodation space, and a connection hole for the locking member to pass through is provided on the partition; the arc-shaped opening is arranged in the second accommodation space; a locking hole is provided on the inner end surface of the wedge, and after the locking member is inserted into the first accommodation space, it passes through the connection hole and is inserted into the locking hole; during the locking process, the locking member can make the wedge move in the direction of the locking member.

[0011] In this technical solution, during the locking process, the partition restricts the movement of the locking member. Under the mutual action of the locking member and the wedge, only the wedge can move in the direction of the locking member, so that the pressure of the abutting surface of the wedge on the outer peripheral surface of the fixing rod increases, and the fixing of the fixing rod and the adapter is more firm.

[0012] Preferably, the axis of the locking hole is parallel to the extending direction of the wedge-shaped hole.

[0013] In this technical solution, the axis of the locking hole is parallel to the extending direction of the wedge-shaped hole, so that the acting force of the wedge on the locking member and the guiding direction of the wedge-shaped hole on the wedge are the same. When the locking member drives the wedge to lock, the wedge can move smoothly in the wedge-shaped hole, and finally the pressure of the abutting surface of the wedge on the outer peripheral surface of the fixing rod reaches an ideal value.

[0014] Preferably, the insertion hole penetrates through the main body block.

[0015] In this technical solution, the fixing rod can adjust the relative position between the main body block and the fixing rod according to the position requirements of the optical element, and the position adjustment space of the fixing rod is relatively large.

[0016] Preferably, the inner peripheral surface of the insertion hole includes an intermediate section, and the inner peripheral surface of the intermediate section matches the outer peripheral surface of the fixing rod.

[0017] In this technical solution, when the fixing rod is inserted into the insertion hole, the inner peripheral surface of the middle section fits against the outer peripheral surface of the fixing rod, restricting the position of the fixing rod.

[0018] Preferably, the inner peripheral surface of the insertion hole further includes a guiding section that extends from the outer surface of the main body block to connect with the middle section, and the diameter of the guiding section is larger than that of the middle section.

[0019] In this technical solution, the provision of the guiding section plays a guiding role during the process of inserting the fixing rod into the insertion hole, facilitating the insertion of the fixing rod; meanwhile, when it is necessary to remove the fixing rod, the space formed between the guiding section and the outer peripheral surface of the fixing rod also facilitates the removal of the fixing rod.

[0020] Preferably, the axis of the insertion hole is perpendicular to the axis of the wedge-shaped hole.

[0021] In this technical solution, the pressure of the wedge on the fixing rod is applied transversely to the fixing rod. Combining with the restriction of the insertion hole on the fixing rod, the fixing of the fixing rod becomes more stable.

[0022] Preferably, the number of the insertion holes is multiple, the number of the wedge-shaped holes is multiple, and the number of the insertion holes and the wedge-shaped holes is the same and they are arranged in one-to-one correspondence.

[0023] In this technical solution, the number and position of the combination formed by the insertion holes and the wedge-shaped holes can be set according to actual needs and are not limited to one group.

[0024] Preferably, the main body block is composed of at least one cuboid, and the insertion hole is perpendicular to the surface of the main body block.

[0025] In this technical solution, the main body block is designed as a regular body composed of at least one cuboid, and the insertion hole is perpendicular to the surface of the main body block. When the main body block is placed on the placement surface, the fixing rod is horizontal or perpendicular to the placement surface, which is convenient for angle calculation and facilitates the position adjustment of the fixing rod.

[0026] Based on the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present invention.

[0027] The positive and progressive effects of the present invention are as follows:

[0028] For the adapter for the fixing rod of the optical element, after the wedge moves into the wedge-shaped hole and is locked, the abutting surface abuts against the outer peripheral surface of the fixing rod. The pressure of the abutting surface of the wedge on the outer peripheral surface of the fixing rod increases, making the fixing of the fixing rod and the adapter more firm; compared with other fixing methods, the contact area between the abutting surface of the wedge and the fixing rod is larger, and the clamping force is also greater, which is more suitable for relatively heavy load occasions; meanwhile, the problem of obvious displacement is also avoided during the fastening process. Description of the Drawings

[0029] Figure 1 This is a schematic structural diagram of the insertion fixing rod of the first embodiment of the adapter for the optical element fixing rod of the present invention.

[0030] Figure 2 It is Figure 1 a schematic structural diagram of the adapter for the optical element fixing rod shown.

[0031] Figure 3 It is Figure 2 a cross-sectional view of the adapter for the optical element fixing rod shown.

[0032] Figure 4 It is Figure 2 a cross-sectional view of the main body block of the adapter for the optical element fixing rod shown.

[0033] Figure 5 It is Figure 2 a schematic structural diagram of the wedge of the adapter for the optical element fixing rod shown.

[0034] Figure 6 This is a schematic structural diagram of the main body block of the second embodiment of the adapter for the optical element fixing rod of the present invention.

[0035] Figure 7 This is a schematic structural diagram of the main body block of the third embodiment of the adapter for the optical element fixing rod of the present invention.

[0036] Description of the Reference Numerals

[0037] Adapter 100

[0038] Main body block 1

[0039] Insertion hole 11

[0040] Intermediate section 111

[0041] Inlet section 112

[0042] Wedge-shaped hole 12

[0043] Large port 121

[0044] Small port 122

[0045] First accommodation space 123

[0046] Second accommodation space 124

[0047] Partition 125

[0048] Connection hole 126

[0049] Arc-shaped opening 13

[0050] Wedge 2

[0051] Outer peripheral surface 21

[0052] Contact surface 22

[0053] Inner end surface 23

[0054] Locking hole 24

[0055] Locking member 3

[0056] Fixing rod 200 Specific embodiments

[0057] The present invention will be further described below by way of examples, but the present invention is not limited to the scope of the described examples.

[0058] Example 1

[0059] As Figures 1 to 5 shown, it is Example 1 of the adapter for the fixing rod of the optical element of the present invention.

[0060] The adapter 100 includes a main body block 1 and a wedge 2. The adapter 100 is used to lock the fixing rod 200, and the fixing rod 200 is used to fix the optical element. Among them, the main body block 1 is provided with an insertion hole 11 and a wedge-shaped hole 12. The insertion hole 11 is used to insert the fixing rod 200. The wedge-shaped hole 12 penetrates through the main body block 1. The peripheral surface of the wedge-shaped hole 12 intersects with the peripheral surface of the insertion hole 11 to form an arc-shaped opening 13 communicating the insertion hole 11 and the wedge-shaped hole 12. The wedge 2 includes an outer peripheral surface 21 matching the surface of the wedge-shaped hole 12 and a contact surface 22 protruding from the arc-shaped opening 13 into the insertion hole 11. The wedge 2 can move into the wedge-shaped hole 12 and be locked, so that the contact surface 22 abuts against the outer peripheral surface of the fixing rod 200.

[0061] When it is necessary to fix the fixing rod 200 to the adapter 100, the fixing rod 200 is inserted into the insertion hole 11, and the wedge 2 is inserted into the wedge-shaped hole 12. At this time, the contact surface 22 of the wedge 2 protrudes from the arc-shaped opening 13 into the insertion hole 11. After the wedge 2 moves into the wedge-shaped hole 12 and is locked, the contact surface 22 abuts against the outer peripheral surface of the fixing rod 200, and the pressure of the contact surface 22 of the wedge 2 on the outer peripheral surface of the fixing rod 200 increases, making the fixation of the fixing rod 200 and the adapter 100 more firm.

[0062] While the position of the fixing rod 200 is restricted by the insertion hole 11, the contact surface 22 of the wedge 2 also abuts against the outer peripheral surface of the fixing rod 200, locking the fixing rod 200. Compared with other fixing methods, the contact area between the contact surface 22 of the wedge 2 and the fixing rod 200 is larger, and the clamping force is also larger, which is more suitable for heavier load occasions; at the same time, the problem of obvious displacement is also avoided during the tightening process.

[0063] Among them, the adapter 100 further includes a locking member 3. The wedge 2 is inserted into the wedge-shaped hole 12 from the large port 121 of the wedge-shaped hole 12, and the locking member 3 is inserted into the wedge-shaped hole 12 from the small port 122 of the wedge-shaped hole 12. The locking member 3 can be connected to and locked with the inner end face 23 of the wedge 2, so that the wedge 2 can move in the direction of the locking member 3. During the locking process, the abutting surface 22 abuts against the outer peripheral surface of the fixing rod 200 and the pressure gradually increases.

[0064] By providing the locking member 3 inserted from the small port 122 of the wedge-shaped hole 12, the locking of the wedge 2 becomes more convenient. The pulling force of the locking member 3 on the wedge 2 and the pressing force of the abutting surface 22 on the fixing rod 200 are in the same direction. After the fixing rod 200 is locked, the clamping force is relatively stable and it is not easy to loosen.

[0065] Specifically, as Figures 1 to 5 shown, the small port 122 of the wedge-shaped hole 12 forms a first accommodation space 123 for inserting the locking member 3, the large port 121 of the wedge-shaped hole 12 forms a second accommodation space 124 for inserting the wedge 2, a partition 125 is formed between the first accommodation space 123 and the second accommodation space 124, and a connection hole 126 for the locking member 3 to pass through is provided on the partition 125; the arc-shaped opening 13 is arranged in the second accommodation space 124; a locking hole 24 is provided on the inner end face 23 of the wedge 2. After the locking member 3 is inserted into the first accommodation space 123, it passes through the connection hole 126 and is inserted into the locking hole 24; during the locking process, the locking member 3 can make the wedge 2 move in the direction of the locking member 3.

[0066] In this embodiment, when it is necessary to fix the fixing rod 200 to the adapter 100, the fixing rod 200 is inserted into the insertion hole 11, and the wedge 2 is inserted into the second accommodation space 124. At this time, the abutting surface 22 of the wedge 2 protrudes from the arc-shaped opening 13 into the insertion hole 11 and abuts against the outer peripheral surface of the fixing rod 200. Then the locking member 3 is inserted into the first accommodation space 123, and the locking member 3 passes through the connection hole 126 and is inserted into the locking hole 24 of the wedge 2. During the locking process, the partition 125 restricts the movement of the locking member 3. Under the interaction between the locking member 3 and the wedge 2, only the wedge 2 can move in the direction of the locking member 3, so that the pressure of the abutting surface 22 of the wedge 2 on the outer peripheral surface of the fixing rod 200 increases, and the fixing of the fixing rod 200 to the adapter 100 becomes more firm.

[0067] Among them, the axis of the locking hole 24 is parallel to the extending direction of the wedge-shaped hole 12, so that the acting force of the wedge 2 on the locking member 3 and the guiding direction of the wedge-shaped hole 12 on the wedge 2 are the same. When the locking member 3 drives the wedge 2 to lock, the wedge 2 can move smoothly in the wedge-shaped hole 12, and finally the pressure of the abutting surface 22 of the wedge 2 on the outer peripheral surface of the fixing rod 200 reaches an ideal value.

[0068] In this embodiment, the locking member 3 is a locking bolt; the locking hole 24 is provided with threads, and the locking member 3 is in threaded engagement with the locking hole 24. The head of the locking bolt is located in the first accommodation space 123, and the screw rod of the locking bolt passes through the connection hole 126 and is inserted into the locking hole 24 of the wedge 2. When it is necessary to lock the wedge 2, by rotating the locking bolt (i.e., the locking member 3), the wedge 2 can be moved in the wedge-shaped hole 12 towards the locking member 3, so that the abutting surface 22 of the wedge 2 presses against the fixing rod 200.

[0069] In other embodiments, the locking member 3 can also be designed as other locking structures that can lock the wedge 2 so that the abutting surface 22 of the wedge 2 can press against the fixing rod 200.

[0070] As Figures 1 to 4 shown, the insertion hole 11 penetrates through the main body block 1, so that the fixing rod 200 can also pass through the main body block 1. The fixing rod 200 can adjust the relative position between the main body block 1 and the fixing rod 200 according to the position requirements of the optical element, and the position adjustment space of the fixing rod is relatively large. In other embodiments, the insertion hole 11 can also be set not to penetrate through the main body block 1.

[0071] As Figure 4 shown, the inner peripheral surface of the insertion hole 11 includes an intermediate section 111, and the inner peripheral surface of the intermediate section 111 matches the outer peripheral surface of the fixing rod 200. When the fixing rod 200 is inserted into the insertion hole 11, the inner peripheral surface of the intermediate section 111 fits against the outer peripheral surface of the fixing rod 200, restricting the position of the fixing rod 200. Among them, the inner peripheral surface of the insertion hole 11 further includes a guiding section 112, and the guiding section 112 extends from the outer surface of the main body block 1 to be connected to the intermediate section 111, and the diameter of the guiding section 112 is larger than the diameter of the intermediate section 111. The setting of the guiding section 112 plays a guiding role during the process of inserting the fixing rod 200 into the insertion hole 11, facilitating the insertion of the fixing rod 200. At the same time, when it is necessary to take out the fixing rod 200, the space formed between the guiding section 112 and the outer peripheral surface of the fixing rod 200 also facilitates the removal of the fixing rod 200.

[0072] When the insertion hole 11 is designed to penetrate through the main body block 1, guiding sections 112 can be provided at both ends of the insertion hole 11, so that the fixing rod 200 can be smoothly inserted or taken out from either end of the insertion hole 11.

[0073] As Figures 1 to 4 shown, the axis of the insertion hole 11 is perpendicular to the axis of the wedge-shaped hole 12. After the fixing rod 200 is inserted into the insertion hole 11 and the wedge 2 is inserted into the wedge-shaped hole 12, the pressure of the wedge 2 on the fixing rod 200 is applied transversely along the fixing rod 200. Combining with the restriction of the insertion hole 11 on the fixing rod 200, the fixing of the fixing rod 200 is more stable.

[0074] Among them, it is preferable that the extending direction of the abutting surface 22 coincides with the radial plane of the insertion hole 11, so that the pressure of the abutting surface 22 on the fixing rod 200 is completely perpendicular to the fixing rod 200. Combining with the restriction of the insertion hole 11 on the fixing rod 200, the fixing of the fixing rod 200 is more stable.

[0075] In this embodiment, the main body block 1 is a cuboid. The number of the insertion holes 11 is two, and the number of the wedge-shaped holes 12 is also two. The insertion holes 11 and the wedge-shaped holes 12 are arranged in one-to-one correspondence to form two groups. The adapter 100 can provide two fixing positions at the same time, can fix two fixing rods 200 at the same time, or insert the fixing rod 200 into any one of the fixing positions.

[0076] Among them, the two insertion holes 11 are respectively arranged on two adjacent surfaces of the main body block 1, and the insertion holes 11 are perpendicular to the surface of the main body block 1. Through the above setting, when the main body block 1 is placed on the placement surface, the fixing rod 200 is horizontal or perpendicular to the placement surface, which is convenient for angle calculation and convenient for adjusting the position of the fixing rod 200.

[0077] Among them, the two insertion holes 11 are perpendicular to each other, so that the two fixing positions of the fixing rod 200 are perpendicular to each other, and can be used for fixing two fixing rods 200 perpendicular to each other.

[0078] Embodiment Two

[0079] As Figure 6 shown, the structure of the adapter 100 in this embodiment is basically the same as that in Embodiment One. The difference is that:

[0080] The two insertion holes 11 are parallel to each other, so that the two fixing positions of the fixing rod 200 are parallel to each other, and can be used for fixing two fixing rods 200 parallel to each other.

[0081] Embodiment Three

[0082] As Figure 7 shown, the structure of the adapter 100 in this embodiment is basically the same as that in Embodiment One. The difference is that:

[0083] The main body block 1 is composed of two mutually perpendicular cuboids, and the two insertion holes 11 are respectively arranged on the two cuboids, so that the fixing rod 200 can be inserted into any one of the fixing positions.

[0084] In other embodiments, the shape of the main body block 1 can also be designed into other shapes to meet different position fixing requirements.

[0085] The present invention is not limited to the above-described embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present invention. The protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An adapter for an optical element fixing rod, the fixing rod being used for fixing an optical element, characterized in that, The adapter includes: A main body block, on which an insertion hole and a wedge-shaped hole are provided. The insertion hole is used for inserting the fixing rod, the wedge-shaped hole penetrates through the main body block, and an arc-shaped opening communicating the insertion hole and the wedge-shaped hole is formed at the intersection of the peripheral surface of the wedge-shaped hole and the peripheral surface of the insertion hole; A wedge, which includes an outer peripheral surface matching the surface of the wedge-shaped hole and an abutting surface protruding from the arc-shaped opening into the insertion hole; the wedge can move into the wedge-shaped hole and be locked, so that the abutting surface abuts against the outer peripheral surface of the fixing rod.

2. The adapter for the optical element fixing rod according to claim 1, characterized in that: The adapter further includes a locking member. The wedge is inserted into the wedge-shaped hole from the large port of the wedge-shaped hole, and the locking member is inserted into the wedge-shaped hole from the small port of the wedge-shaped hole; the locking member can be connected to and locked with the inner end surface of the wedge, so that the wedge can move in the direction of the locking member.

3. The adapter for the optical element fixing rod according to claim 2, wherein: A first accommodation space for inserting the locking member is formed at the small port of the wedge-shaped hole, a second accommodation space for inserting the wedge is formed at the large port of the wedge-shaped hole, a partition is formed between the first accommodation space and the second accommodation space, and a connection hole for the locking member to pass through is provided on the partition; the arc-shaped opening is arranged in the second accommodation space; a locking hole is provided on the inner end surface of the wedge, and after the locking member is inserted into the first accommodation space, it passes through the connection hole and is inserted into the locking hole; During the locking process, the locking member can make the wedge move in the direction of the locking member.

4. The adapter for the optical element fixing rod according to claim 3, characterized in that: The axis of the locking hole is parallel to the extending direction of the wedge-shaped hole.

5. The adapter for the optical element fixing rod according to claim 1, characterized in that: The insertion hole penetrates through the main body block.

6. The adapter for the optical element fixing rod according to claim 1, characterized in that: The inner peripheral surface of the insertion hole includes an intermediate section, and the inner peripheral surface of the intermediate section matches the outer peripheral surface of the fixing rod.

7. The adapter for the optical element fixing rod according to claim 6, characterized in that: The inner peripheral surface of the insertion hole further includes a guiding section, which extends from the outer surface of the main body block to be connected with the intermediate section, and the diameter of the guiding section is larger than the diameter of the intermediate section.

8. The adapter for the optical element fixing rod according to claim 1, characterized in that: The axis of the insertion hole is perpendicular to the axis of the wedge-shaped hole.

9. The adapter for the optical element fixing rod according to claim 1, wherein: The number of the insertion holes is multiple, the number of the wedge-shaped holes is multiple, and the number of the insertion holes and the wedge-shaped holes is the same and they are arranged in one-to-one correspondence.

10. The adapter for the optical element fixing rod according to claim 1 or 9, characterized in that: The main body block is composed of at least one cuboid, and the insertion hole is perpendicular to the surface of the main body block.

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