Quick fixing mechanism and fixing device

Abstract

The utility model belongs to the technical field of machining, and discloses a quick fixing mechanism and a fixing device.The quick fixing mechanism comprises a base, and the base is provided with two first channels distributed in the first direction at intervals; fixing holes are formed in the base, each first channel corresponds to two fixing holes, the two fixing holes are formed in the path of the first channel in a spaced mode and communicate with the first channel, and the fixing holes are configured to be connected with positioning columns in an inserted mode; two ejector rods are arranged in each first channel in a sliding mode, and the two ejector rods can get close to each other or get away from each other between the two fixing holes of the same first channel. The pushing piece is configured to enable the two ejector rods in the same first channel to be far away from each other, and the pushing piece can be interlocked with the base; the elastic piece is connected with the pushing piece; the fixing device comprises the quick fixing mechanism, so that devices such as a vice can be quickly fixed and replaced through the quick fixing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a quick fixing mechanism and a fixing device. Background Art

[0002] A vise is a general fixture for clamping workpieces. It can be installed on a placement table to firmly clamp the workpieces to be machined and is an essential tool in a workshop.

[0003] In the prior art, a vise is generally fixed to a fixed base through a latten fixing column provided on the vise, which is convenient for disassembly and use. However, the disassembly of the fixing column and the installation of the vise in the prior art are not fast and convenient enough, which will indirectly affect the production efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a quick fixing mechanism that can quickly install and disassemble external workpieces.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The quick fixing mechanism includes:

[0007] A base, the base is provided with two first channels spaced along a first direction, and both of the two first channels extend along a second direction; a fixing hole is further opened on the base along a direction perpendicular to the first direction and the second direction. Each of the first channels corresponds to two of the fixing holes, and the two fixing holes are spaced on the path of the first channel and communicate with the first channel. The fixing holes are used for inserting positioning columns on external workpieces;

[0008] A ejector rod, two ejector rods are slidably arranged in each of the first channels, and the two ejector rods are located between the two fixing holes in the same first channel. In the same first channel, the two ejector rods can approach or move away from each other;

[0009] A pushing member, the pushing member is movably arranged on the base, and the pushing member can push the two ejector rods in the same first channel away from each other so that the ejector rods can abut against the positioning columns in the corresponding fixing holes. Among them, the pushing member can be interlocked with the base to prevent the two ejector rods from approaching each other so that the ejector rods can lock the corresponding positioning columns;

[0010] An elastic member, the elastic member is connected to the pushing member. When the pushing member pushes the two ejector rods away from each other, the elastic member stores potential energy, so that the pushing member has a tendency to keep away from the ejector rods. When the elastic member pushes the pushing member away from the ejector rods, the pushing member drives the two ejector rods in the same first channel to approach each other and each move away from the corresponding positioning post to unlock the positioning post;

[0011] Wherein, the first direction is perpendicular to the second direction.

[0012] In some embodiments, the base is further provided with a second channel, the second channel is arranged between the two first channels along the first direction, the first channel is communicated with the second channel, the pushing member includes two push rods sliding along the first channel, and the two push rods can push the ejector rods during the sliding process. The push rods can be locked in the second channel.

[0013] In some embodiments, the base is further provided with a third channel, the third channel is arranged between the two first channels along the second direction, the third channel is communicated with the second channel, the pushing member further includes a limiting rod, the limiting rod is movably arranged in the third channel, and the first end of the limiting rod can abut between the two push rods to push the push rods to move, so that the push rods can push the ejector rods; the limiting rod can be locked in the third channel, so that the push rods can be locked in the second channel.

[0014] In some embodiments, the limiting rod can be interlocked with the inner wall of the third channel.

[0015] In some embodiments, one end of the third channel away from the second channel penetrates through the base, and the limiting rod is screwed to the inner wall of the third channel.

[0016] In some embodiments, the outer wall of the push rod is provided with an inclined wedge groove, and the end of the ejector rod away from the fixing hole is provided with an inclined surface matching the inclined wedge groove. When the push rod slides along the second channel, the end of the ejector rod can enter and exit the inclined wedge groove.

[0017] In some embodiments, the notch of the inclined wedge groove is an inclined groove notch inclined towards the end where the two push rods approach each other.

[0018] In some embodiments, each push rod corresponds to an elastic member, the first end of the elastic member is connected to the end where the push rods are away from each other, and the second end of the elastic member is connected to the base.

[0019] In some embodiments, the second channel penetrates through the base, a detachable plugging member is disposed in the second channel, the elastic member is disposed in the second channel, and the second end of the elastic member is connected to the plugging member.

[0020] A fixing device is further provided, which includes the quick-fixing mechanism as described above and a placement table, and the quick-fixing mechanism is disposed on the placement table with adjustable position.

[0021] Advantages of the present utility model:

[0022] Insert the fixing column into the above fixing hole, and then the ejector rod located in the first channel can be pushed by the pusher, so that the two ejector rods located in the same first channel move away from each other and abut against the positioning column located in the fixing hole. Then, the pusher is interlocked with the base to lock the ejector rod to the positioning column located in the fixing hole. Since the elastic member can store potential energy during the process that the pusher moves away from the ejector rod and pushes the ejector rods away from each other, the elastic member can make the ejector rods approach each other to move away from the corresponding positioning columns respectively. Therefore, when it is necessary to release the fixation of the external workpiece, only the interlock between the pusher and the base needs to be released, and the potential energy stored by the elastic member can prompt the ejector rods to approach each other and move away from the fixing hole, so that the positioning column in the fixing hole can be disengaged and the positioning column can be unlocked, and thus fast fixing and convenient replacement can be facilitated, and the efficiency can be improved. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the quick-fixing mechanism in an embodiment of the present utility model;

[0024] Figure 2 is a schematic diagram of the quick-fixing mechanism in an embodiment of the present utility model with the upper base removed;

[0025] Figure 3 is a schematic diagram of the ejector rod and the pusher in an embodiment of the present utility model;

[0026] Figure 4 is a schematic diagram of the fixing device fixing a vise in an embodiment of the present utility model.

[0027] In the figure:

[0028] 10. Quick-fixing mechanism;

[0029] 1. Base; 11. Upper base; 12. Lower base; 13. First channel; 14. Fixing hole; 15. Second channel; 16. Third channel;

[0030] 4. Ejector rod;

[0031] 5. Pusher; 51. Push rod; 511. Wedge groove; 52. Limiting rod; 521. Rod part; 522. Screwing part; 523. Screwing hole;

[0032] 6. Elastic member;

[0033] 7. Sealing member;

[0034] 20. Positioning post; 30. Placing table; 40. Vise. Detailed implementation manner

[0035] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0036] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0037] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0038] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0039] Such as Figures 1 to 3As shown in the figure, the present utility model provides a quick fixing mechanism 10, which includes a base 1, a top rod 4, a pushing member 5 and an elastic member 6. The base 1 is provided with two first channels 13 spaced along a first direction, and both of the two first channels 13 extend along a second direction; a fixing hole 14 is further opened on the base 1 perpendicular to the first direction and the second direction. Each first channel 13 corresponds to two fixing holes 14, and the two fixing holes 14 are spaced on the path of the first channel 13 and communicate with the first channel 13. The fixing holes 14 are used for inserting positioning posts 20 on an external workpiece; two top rods 4 are slidably arranged in each first channel 13, and the two top rods 4 are located between the two fixing holes 14 of the same first channel 13. In the same first channel 13, the two top rods 4 can approach or move away from each other; the pushing member 5 is movably arranged on the base 1, and the pushing member 5 can push the two top rods 4 in the same first channel 13 to move away from each other, so that the top rods 4 can abut against the positioning posts 20 in the corresponding fixing holes 14. Among them, the pushing member 5 can be interlocked with the base 1 so that the abutting of the top rods can lock the corresponding positioning posts 20; the elastic member 6 is connected to the pushing member 5. When the pushing member 5 pushes the two top rods 4 to move away from each other, the elastic member 6 stores potential energy, so that the pushing member 5 has a tendency to keep away from the top rods 4. When the elastic member 6 pushes the pushing member 5 away from the top rods 4, the pushing member 5 drives the two top rods 4 in the same first channel 13 to approach each other to move away from the corresponding positioning posts 20 respectively, so as to unlock the positioning posts 20; the first direction is perpendicular to the second direction.

[0040] With the above structure, when fixing an external workpiece or device such as a fixed vise 40 provided with positioning posts 20, only need to insert the fixing posts into the above fixing holes 14, and then the pushing member 5 can be used to push the top rods 4 located in the first channels 13, so that the two top rods 4 in the same first channel 13 move away from each other and abut against the positioning posts 20 located in the fixing holes 14. Then, the pushing member 5 is interlocked with the base 1 so that the top rods 4 lock the positioning posts 20 located in the fixing holes 14; since the pushing member 5 moves in a direction away from the top rods 4, the elastic member 6 can store potential energy during the process that the pushing member 5 pushes the top rods 4 to move away from each other. Furthermore, the elastic member 6 can make the top rods 4 approach each other to move away from the corresponding positioning posts 20 respectively. Thus, when it is necessary to release the fixation of the external workpiece, only need to release the interlock between the pushing member 5 and the base 1. The stored potential energy of the elastic member 6 can prompt the top rods 4 to approach each other and move away from the fixing holes 14, so that the positioning posts 20 in the fixing holes 14 can be disengaged, unlocking the positioning posts 20, and then it is convenient to perform quick fixing and convenient replacement, improving the efficiency.

[0041] It should be noted that the first direction is Figure 2 the X direction in Figure 2 and the second direction is the Y direction in

[0042] When the fixing device is the vise 40, the fixing post on the vise 40 is generally a stud. The outer periphery of the stud has a groove. In order to facilitate the ejector rod 4 to abut and fix the above-mentioned fixing post, in some embodiments, one end of the ejector rod 4 facing the fixing hole 14 is a tip, so that it can be embedded into the groove of the stud for convenient fixing. Exemplarily, two inclined surfaces are provided at one end of the ejector rod 4 facing the fixing hole 14, so that the ejector rod 4 forms a tip through the inclined surfaces. It can be understood that in some other embodiments, according to the shape of the positioning post 20 on different workpieces or devices, one end of the ejector rod 4 facing the fixing hole 14 can have a different mating structure different from the tip.

[0043] As Figure 2 shown, in some embodiments, the base 1 is further provided with a second channel 15. The second channel 15 is arranged between two first channels 13. The second channel 15 extends along the first direction and communicates with the two first channels 13. The pushing member 5 includes two push rods 51 slidably arranged in the second channel 15. By moving the two push rods 51 away from each other, the ends of the two push rods 51 away from each other abut against the facing ends of the two ejector rods 4 located in the first channel 13, so that the two abutting ejector rods 4 move away from each other. When the push rod 51 pushes the ejector rod 4 to move to the corresponding positioning post 20, the push rod 51 can be locked in the second channel 15, so that the ejector rod 4 locks the positioning post 20 in the corresponding fixing hole 14. The push rod 51 can also keep the consistency of the fixing action while pushing the two ejector rods 4 at the same time.

[0044] As Figure 2 and Figure 3As shown, in order to enable the push rods 51 to approach or move away from each other smoothly and to keep them locked in the second channel 15, in some embodiments, the base 1 is further provided with a third channel 16. The third channel 16 is disposed between the two first channels 13 and extends in the second direction to communicate with the second channel 15. The pushing member 5 further includes a limiting rod 52. The limiting rod 52 moves along the third channel 16. Thus, when the limiting rod 52 enters the second channel 15, the first end of the limiting rod 52 can abut against the two push rods 51 located in the second channel 15, causing the two push rods 51 to move away from each other, and further enabling the push rods 51 to push the ejector rod 4. The limiting rod 52 can be locked in the third channel 16 so that the push rods 51 can be locked in the second channel 15, and the ejector rod 4 locks the positioning post 20 in the corresponding fixing hole 14. When the limiting rod 52 is unlocked and the first end of the limiting rod 52 disengages from the second channel 15, there is space for the two push rods 51 to approach each other. Thus, by moving the limiting rod 52, the four ejector rods 4 in the two first channels 13 can be synchronously controlled to keep the fixing actions consistent. Further, since the first end of the limiting rod 52 needs to abut against or disengage from the two push rods 51, in order to avoid unnecessary jamming, the first end of the limiting rod 52 and the ends of the two push rods 51 facing each other are both conical heads, so that contact is made through the smooth outer surface of the conical head to avoid jamming caused by hard contact.

[0045] Continue as Figure 2 and Figure 3As shown, based on the movement of the push rod 51 driven by the above-mentioned limit rod 52, in some embodiments, the limit rod 52 can be interlocked with the inner wall of the third channel 16, so that the limit rod 52 maintains a locked position in the third channel 16, and further the push rod 51 maintains a locked position. Specifically, one end of the third channel 16 away from the second channel 15 penetrates the base 1. The limit rod 52 has a first thread, and the inner wall of the third channel 16 is provided with a second thread that cooperates with the first thread, so that the limit rod 52 can be screwed onto the inner wall of the third channel 16. When it is necessary to move the limit rod 52, only the limit rod 52 needs to be screwed, that is, the two are interlocked by threads to keep the limit rod 52 in a locked position; and the screwing method also makes the fixing operation more convenient and fast. It should be noted here that since the limit rod 52 uses a rotating method when abutting against the push rod 51, based on this, in order to avoid jamming, the limit rod 52 is a round rod. Further, the third channel 16 includes a large-diameter section and a small-diameter section. The small-diameter section communicates with the second channel 15, and the large-diameter section penetrates the base 1. The second thread is provided on the large-diameter section. The limit rod 52 includes a coaxial rod portion 521 and a screwing portion 522. The screwing portion 522 abuts against one end of the rod portion 521. The outer diameter of the rod portion 521 matches the small-diameter section, and the outer diameter of the screwing portion 522 matches the large-diameter section. The first thread is provided on the outer periphery of the screwing portion 522. A screwing hole 523 is provided at the end of the screwing portion 522 away from the rod portion 521, which is convenient for screwing the limit rod 52. The above setting of the large-diameter section and the small-diameter section can prevent the limit rod 52 from being screwed into the base 1 excessively.

[0046] Continuing as Figure 2 and Figure 3 As shown, in order to enable the push rod 51 to smoothly push the ejector rod 4 during the movement in the second channel 15, in some embodiments, an inclined wedge groove 511 is provided on the outer peripheral wall of the push rod 51. The notch of the inclined wedge groove 511 is located on the side facing the fixing hole 14, and two inclined surfaces facing away from each other are provided at one end of the ejector rod 4 facing the push rod 51. The two inclined surfaces are in mating contact with the inner wall of the inclined wedge groove 511. Further, when the push rods 51 move away from each other, the inner wall of the inclined wedge groove 511 abuts against the inclined surface of the ejector rod 4, so that the end of the ejector rod 4 slides out; and when the push rods 51 move closer to each other, the inclined surface of the ejector rod 4 slides back into the inclined wedge groove 511 along the inner wall of the inclined wedge groove 511. Further, the end of the ejector rod 4 enters or exits the inclined wedge groove 511 through the sliding of the inclined surface along the inner wall of the inclined wedge groove 511. By the movement of the ejector rod 4 in and out of the inclined wedge groove 511, the ejector rod 4 is driven to approach or move away from the fixing hole 14. Further, the notch of the inclined wedge groove 511 is an inclined notch inclined towards the end where the two push rods 51 approach each other, so that the end of the ejector rod 4 enters and exits more smoothly, avoiding jamming.

[0047] In some alternative embodiments (not shown in the figures), the ends of the two ejector rods 4 that are close to each other and the ends of the two push rods 51 that are far from each other can be provided as tapered ends. Thus, the push rod 51 is inserted between the two ejector rods 4 to abut against the positioning post 20, and when the push rod 51 moves away from between the two ejector rods 4, the ejector rods 4 have space to move away from the positioning post 20.

[0048] In some embodiments, the above-mentioned elastic member 6 can be connected to the ends of the two ejector rods 4 that are close to each other and located in the same first channel 13. Thus, when the two ejector rods 4 move towards the fixing hole 14, the elastic member 6 can be stretched to store elastic potential energy. After the push rod 51 moves away from the two ejector rods 4 and the two ejector rods 4 have space to disengage from the positioning post 20, the elastic member 6 makes the two ejector rods 4 approach each other through the stored elastic potential energy. The elastic member 6 includes, but is not limited to, a spring.

[0049] Continuing as Figure 2 shown, in some other embodiments, the second channel 15 penetrates the base 1, and a detachable plug member 7 is provided at the end of the second channel 15; exemplarily, the manner in which the plug member 7 is detachably connected to the second channel 15 is not specifically limited, and it can be screwed or snapped. The elastic member 6 is disposed in the second channel 15, and the second end of the elastic member 6 is connected to the plug member 7, while the first end of the elastic member 6 can be connected to the end of one push rod 51 that is far from the other push rod 51, and two elastic members 6 are respectively connected to the two push rods 51. Correspondingly, two plug members 7 are also provided. Thus, during the process of the push rods 51 moving away from each other to push the ejector rods 4, the push rods 51 squeeze the elastic member 6 to store elastic potential energy. After the limiting rod 52 leaves the two push rods 51, the elastic member 6 makes the two push rods 51 approach each other through the stored elastic potential energy. Furthermore, during the process of the push rods 51 approaching each other, the inner wall of the inclined wedge groove 511 can abut against the inclined surface of the ejector rod 4, so that the end of the ejector rod 4 can quickly return to the inclined wedge groove 511. In the current embodiment, setting the elastic member 6 in the second channel 15 can also appropriately increase the size of the elastic member 6, thereby increasing the service life of the elastic member 6; and when adopting the above method, only the second end of the elastic member 6 needs to be fixed to the plug member 7, and the first end does not need to be fixed, and only needs to abut against the push rod 51, which can also facilitate the installation of the elastic member 6.

[0050] As Figure 1 and Figure 2As shown, in some embodiments, the base 1 is divided into an upper base 11 and a lower base 12 in the vertical direction. A part of the first channel 13, the second channel 15, the third channel 16, and the fixing hole 14 is provided in the upper base 11, and the other part is provided in the lower base 12. Thus, when the upper base 11 and the lower base 12 are assembled to form the base 1, the first channel 13, the second channel 15, the third channel 16, and the fixing hole 14 are assembled completely. By adopting the above-mentioned split base 1, it is convenient to replace and repair components such as the ejector rod 4 and the push rod 51. Exemplarily, the upper base 11 and the lower base 12 can be connected by bolts or rivets.

[0051] As Figure 4 shown, the present utility model further includes a fixing device, which includes a placing table 30 and the above-mentioned quick-fixing mechanism 10. The quick-fixing mechanism 10 is disposed on the placing table 30 with adjustable position. It can be understood that the placing table 30 can be the workbench of a machine tool. The above-mentioned adjustable position can but is not limited to include the translation or rotation of the quick-fixing mechanism 10 on the placing table 30, and no specific limitation is made. Thus, devices such as the vise 40 can be quickly fixed and replaced through the quick-fixing mechanism 10.

[0052] Obviously, the above-mentioned embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limiting the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. Quick fixing mechanism, characterized in that, Comprising: A base (1), the base (1) is provided with two first channels (13) spaced apart along a first direction, and both of the two first channels (13) extend along a second direction; a fixing hole (14) is further formed on the base (1) along a direction perpendicular to the first direction and the second direction, each of the first channels (13) corresponds to two of the fixing holes (14), the two fixing holes (14) are spaced apart on the path of the first channel (13) and communicate with the first channel (13), and the fixing holes (14) are used for inserting positioning posts (20) on an external workpiece; Ejector rods (4), two ejector rods (4) are slidably arranged in each of the first channels (13), the two ejector rods (4) are located between the two fixing holes (14) of the same first channel (13), and in the same first channel (13), the two ejector rods (4) can approach or move away from each other; A pushing member (5), the pushing member (5) is movably arranged on the base (1), the pushing member (5) can push the two ejector rods (4) in the same first channel (13) away from each other, so that the ejector rods (4) can abut against the positioning posts (20) in the corresponding fixing holes (14), wherein the pushing member (5) can be interlocked with the base (1) to prevent the two ejector rods (4) from approaching each other, so that the ejector rods (4) can lock the corresponding positioning posts (20); An elastic member (6), the elastic member (6) is connected to the pushing member (5), when the pushing member (5) pushes the two ejector rods (4) away from each other, the elastic member (6) stores potential energy, so that the pushing member (5) has a tendency to keep away from the ejector rods (4), when the elastic member (6) pushes the pushing member (5) away from the ejector rods (4), the pushing member (5) drives the two ejector rods (4) in the same first channel (13) to approach each other to respectively move away from the corresponding positioning posts (20) to unlock the positioning posts (20); Wherein, the first direction is perpendicular to the second direction.

2. The quick fixing mechanism according to claim 1, wherein, The base (1) is further provided with a second channel (15), the second channel (15) is arranged between the two first channels (13) along the first direction, the first channels (13) communicate with the second channel (15), the pushing member (5) includes two push rods (51) sliding along the first channels (13), the two push rods (51) can push the ejector rods (4) during the sliding process, and the push rods (51) can be locked in the second channel (15).

3. The quick fixing mechanism according to claim 2, characterized in that The base (1) is further provided with a third channel (16). The third channel (16) is arranged between the two first channels (13) along the second direction. The third channel (16) communicates with the second channel (15). The pushing member (5) further includes a limiting rod (52). The limiting rod (52) is movably arranged in the third channel (16). The first end of the limiting rod (52) can abut between the two push rods (51) and push the push rods (51) to move, so that the push rods (51) can push the ejector rod (4). The limiting rod (52) can be locked in the third channel (16) so that the push rods (51) can be locked in the second channel (15).

4. The quick fixing mechanism according to claim 3, characterized in that, The limiting rod (52) can be interlocked with the inner wall of the third channel (16).

5. The quick-fixing mechanism according to claim 4, characterized in that One end of the third channel (16) away from the second channel (15) penetrates through the base (1). The limiting rod (52) is screwed to the inner wall of the third channel (16).

6. The quick fixing mechanism according to claim 2, wherein An inclined wedge groove (511) is arranged on the outer wall of the push rod (51). One end of the ejector rod (4) away from the fixing hole (14) is provided with an inclined surface that cooperates with the inclined wedge groove (511). When the push rod (51) slides along the second channel (15), the end of the ejector rod (4) can enter and exit the inclined wedge groove (511).

7. The quick fixing mechanism according to claim 6, characterized in that, The notch of the inclined wedge groove (511) is an inclined notch that inclines towards one end where the two push rods (51) approach each other.

8. The quick fixing mechanism according to claim 2, wherein, Each push rod (51) corresponds to an elastic member (6). The first end of the elastic member (6) is connected to one end of the push rods (51) away from each other. The second end of the elastic member (6) is connected to the base (1).

9. The quick-fixing mechanism according to claim 8, characterized in that The second channel (15) penetrates through the base (1). A detachable plugging member (7) is arranged in the second channel (15). The elastic member (6) is arranged in the second channel (15). The second end of the elastic member (6) is connected to the plugging member (7).

10. Fixing device, characterized in that, It includes a quick-fixing mechanism (10) according to any one of claims 1-9 and a placement table (30). The quick-fixing mechanism (10) is arranged on the placement table (30) with adjustable position.

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