Joint fixing device

Abstract

The present invention is applicable to the technical field of fixedly installed tools, and provides a joint fixing device. The joint fixing device includes a mounting base and a clamping mechanism. The mounting base can be fixed on an object to be installed, and a mounting hole for a joint to pass through is formed in the mounting base; the clamping mechanism includes a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are movably mounted on the mounting base, and the first clamping arm and the second clamping arm can cooperate together to clamp the joint connected to the interface; this joint fixing device enables the joint to be more firmly connected to the interface, preventing the joint from accidentally loosening or falling off at the interface.

Description

Technical Field

[0001] The present invention relates to the technical field of fixed installation tools, and particularly relates to a joint fixing device. Background Art

[0002] The AC joint and the interface are usually connected in a plugging manner. If the AC joint is pulled by an external force or under the long-term action of the gravity of the wire connected to the AC joint, it is easy to become loose, and then there is a risk that the joint accidentally falls off the interface, affecting the normal use of the electrical components connected to the joint. Summary of the Invention

[0003] An object of an embodiment of the present invention is to provide a joint fixing device that can reduce the risk of the joint accidentally falling off the interface.

[0004] An embodiment of the present invention is implemented as follows. A joint fixing device can be installed on an object to be installed. The object to be installed has an interface capable of connecting to a joint. The joint fixing device includes:

[0005] A mounting base that can be fixed on the object to be installed, and a mounting hole for the joint to pass through is provided on the mounting base; and

[0006] A clamping mechanism includes a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are movably installed on the mounting base, and the first clamping arm and the second clamping arm can cooperate together to clamp the joint connected to the interface.

[0007] In one embodiment, both the first clamping arm and the second clamping arm are rotatably connected to the mounting base. The clamping mechanism further includes a connecting arm. One end of the connecting arm is rotatably connected to the first clamping arm, and a connecting portion is provided at the other end of the connecting arm. Wherein, the connecting arm is rotatably connected to the second clamping arm through the connecting portion. When the first clamping arm rotates, it can pull the connecting arm to rotate and drive the second clamping arm to rotate, so that the second clamping arm rotates towards the direction close to the first clamping arm, and the first clamping arm and the second clamping arm respectively tightly abut against the joint and clamp the joint.

[0008] In one embodiment, the connecting portion is a through hole opened on the connecting arm, and a convex column is formed on the second clamping arm. The convex column rotatably passes through the connecting portion, so that the second clamping arm is rotatably connected to the connecting arm; or, the connecting portion is a hook-shaped structure formed at the end of the connecting arm away from the first clamping arm, and a convex column is formed on the second clamping arm. The connecting portion can hook the convex column, so that the connecting arm can drive the second clamping arm to rotate.

[0009] In one embodiment, the connecting portion is a circular through hole formed in the connecting arm, a cylindrical convex column is formed on the second clamping arm, the diameter of the convex column is smaller than the aperture of the connecting portion, and the convex column rotatably passes through the connecting portion, so that the second clamping arm is rotatably connected to the connecting arm.

[0010] In one embodiment, the mounting seat includes a first mounting member and a second mounting member. The first mounting member can be fixedly mounted on the object to be mounted. The second mounting member is fixedly connected to the first mounting member, and a receiving space for receiving the clamping mechanism is formed between the second mounting member and the first mounting member. Mounting holes for the joint to pass through are formed in both the first mounting member and the second mounting member, and the positions of the mounting holes in the first mounting member correspond to those of the mounting holes in the second mounting member.

[0011] A first connecting shaft and a second connecting shaft are provided on one side of the second mounting member close to the first mounting member.

[0012] A connecting hole for the first connecting shaft to rotatably pass through is formed at one end of the first clamping arm. The other end of the first clamping arm is a free end. The first connecting shaft passes through the connecting hole to rotatably connect the first clamping arm to the second mounting member. An installation shaft is further provided on the first clamping arm, and the installation shaft is located between the free end and the connecting hole. The end of the connecting arm away from the connecting portion is rotatably connected to the installation shaft. One end of the second clamping arm is rotatably connected to the second connecting shaft, and the connecting arm is rotatably connected to the end of the second clamping arm away from the second connecting shaft through the connecting portion.

[0013] In one embodiment, a convex column for rotatably connecting to the connecting arm is provided at the end of the second clamping arm away from the second connecting shaft. When the first clamping arm and the second clamping arm clamp the joint, the first connecting shaft, the installation shaft, and the convex column are arranged in a triangle, and the angle between the line connecting the convex column to the first connecting shaft and the line connecting the first connecting shaft to the installation shaft is greater than or equal to 135°.

[0014] In one embodiment, a positioning column is further provided between the first mounting member and the second mounting member, and the free end of the first clamping arm can abut against the positioning column to prevent the first clamping arm from rotating.

[0015] In one embodiment, one end of the first clamping arm away from the free end is a cam end, the connection hole is located at the cam end, when the first clamping arm rotates, the cam end can abut against the joint and rotate relative to the joint, and the first clamping arm is further provided with an abutting protrusion, and the abutting protrusion can cooperate with the second clamping arm to clamp the joint.

[0016] In one embodiment, the second clamping arm has a clamping surface. When the second clamping arm and the first clamping arm jointly clamp the joint, the clamping surface abuts against the joint, and a step groove is formed by the depression of the edge of the clamping surface. When the mounting seat is mounted on the object to be mounted, the edge of the clamping surface with the step groove is close to the object to be mounted.

[0017] In one embodiment, a blocking protrusion is provided on the mounting seat, and a blocking groove is provided on the second clamping arm. The blocking protrusion can abut against the groove wall of the blocking groove to prevent the second clamping arm from rotating in a direction away from the first clamping arm when the first clamping arm and the second clamping arm do not clamp the joint.

[0018] The beneficial effects of the joint fixing device provided by the embodiment of the present invention are as follows:

[0019] The joint fixing device includes a mounting seat and a clamping mechanism. The mounting seat can be fixed on the object to be mounted. An installation hole for the joint to pass through is provided on the mounting seat. The clamping mechanism includes a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are movably mounted on the mounting seat, and the first clamping arm and the second clamping arm can cooperate with each other to clamp the joint connected to the interface, so that the joint is more firmly connected to the interface, preventing the joint from accidentally loosening or falling off at the interface. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a three-dimensional structure diagram of a joint fixing device provided by an embodiment;

[0022] Figure 2 is Figure 1 an assembly schematic diagram of the joint fixing device shown, the joint and the object to be mounted;

[0023] Figure 3 is Figure 1 an exploded assembly diagram of the joint fixing device shown and the object to be mounted;

[0024] Figure 4 is Figure 1 The schematic assembly diagram of the joint fixing device shown with the joint and the interface;

[0025] Figure 5 is Figure 1 The three-dimensional exploded view of the joint fixing device shown;

[0026] Figure 6 is Figure 1 Another structural diagram of the joint fixing device shown, where the first mounting member is removed;

[0027] Figure 7 is Figure 1 A structural diagram of the joint fixing device shown, where the second mounting member is removed;

[0028] Figure 8 is Figure 1 The schematic plan view of the second mounting member of the joint fixing device shown;

[0029] Figure 9 is Figure 1 The schematic three-dimensional structure of the second mounting member of the joint fixing device shown;

[0030] Figure 10 is Figure 1 The schematic structural diagram of the rotating arm of the joint fixing device shown;

[0031] Figure 11 is Figure 1 A schematic angular structural diagram of the clamping arm of the joint fixing device shown;

[0032] Figure 12 is Figure 1 Another schematic angular structural diagram of the clamping arm of the joint fixing device shown;

[0033] Figure 13 is Figure 1 A schematic structural diagram of the pulling arm of the joint fixing device shown;

[0034] Figure 14 is Figure 12 The schematic cooperation diagram of the pulling arm and the clamping arm shown;

[0035] Figure 15 is Figure 1 Another schematic structural diagram of the pulling arm of the joint fixing device shown;

[0036] Figure 16 is Figure 14 The schematic cooperation diagram of the pulling arm and the clamping arm shown;

[0037] Figure 17 isFigure 1 Schematic diagram of the angular relationship of a partial structure in the locked state of the shown joint fixing device.

[0038] The meanings of the markings in the figure are as follows:

[0039] 100 - Joint fixing device, 200 - Joint, 300 - Object to be installed, 301 - Interface;

[0040] 1 - Clamping mechanism;

[0041] 11 - First clamping arm, 110 - Connecting hole, 111 - Mounting shaft, 112 - Abutting projection, 113 - Recess, 114 - Cam end;

[0042] 12 - Connecting arm, 120 - First rotating hole, 121 - Connecting part;

[0043] 13 - Second clamping arm, 130 - Second rotating hole, 131 - Convex column, 132 - Step groove, 133 - Blocking groove, 134 - Clamping surface;

[0044] 2 - Mounting base, 20 - Mounting hole;

[0045] 21 - First mounting member, 210 - Locking hole;

[0046] 22 - Second mounting member, 221 - First connecting shaft, 222 - Second connecting shaft, 223 - Positioning post, 224 - Avoidance portion, 225 - Blocking projection, 226 - Third connecting shaft;

[0047] 3 - Fastener. Detailed implementation manners

[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description, 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 cannot be construed as a limitation of this patent. Terms such as "first" and "second" are only used for the convenience of description and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0050] To illustrate the technical solution of the present invention, the following will be described in detail with reference to specific drawings and embodiments.

[0051] Please refer to Figures 1 to 4 , an adapter fixing device 100 is provided for an embodiment. The adapter fixing device 100 can make the adapter 200 more firmly connected to the interface 301. The adapter fixing device 100 is used to be installed on the object to be installed 300 having the interface 301, and further strengthen the connection between the adapter 200 and the interface 301 by clamping the adapter 200.

[0052] Please refer to Figure 1 and Figure 5 , specifically, the adapter fixing device 100 includes a mounting base 2 and a clamping mechanism 1. Among them, the mounting base 2 can be fixed on the object to be installed 300, and a mounting hole 20 for the adapter 200 to pass through is provided on the mounting base 2; the clamping mechanism 1 includes a first clamping arm 11 and a second clamping arm 13. The first clamping arm 11 and the second clamping arm 13 are movably installed on the mounting base 2, and the first clamping arm 11 and the second clamping arm 13 can cooperate together to clamp the adapter 200 connected to the interface 301, so that the adapter 200 can be firmly connected to the interface 301.

[0053] For the adapter fixing device 100 provided by the embodiment of the present invention, its mounting base 2 can be installed on the object to be installed 300, the first clamping arm 11 and the second clamping arm 13 of its clamping mechanism 1 are movably installed on the mounting base 2, and the first clamping arm 11 and the second clamping arm 13 can cooperate together to clamp the adapter 200, so that the adapter 200 can be firmly connected to the interface 301 together. Thus, it is avoided that the adapter 200 is accidentally loosened or detached at the interface 301, and the stable connection of the adapter 200 is ensured.

[0054] According to an embodiment, both the first clamping arm 11 and the second clamping arm 13 are rotatably connected to the mounting base 2. The clamping mechanism 1 further includes a connecting arm 12 connected between the first clamping arm 11 and the second clamping arm 13, as Figures 5 to 7 shown. That is, one end of the connecting arm 12 is rotatably connected to the first clamping arm 11, and a connecting portion 121 is provided at the other end of the connecting arm 12 (please refer to Figure 13 and Figure 15), the connecting arm 12 is rotatably connected to the second clamping arm 13 through the connecting portion 121. When the first clamping arm 11 rotates, the first clamping arm 11 can pull the connecting arm 12 to rotate, and the connecting arm 12 drives the second clamping arm 13 to rotate, so that the second clamping arm 13 can rotate in the direction close to the first clamping arm 11, and the distance or space between the first clamping arm 11 and the second clamping arm 13 is reduced, and then, the first clamping arm 11 and the second clamping arm 13 can respectively abut against the joint 200 and clamp the joint 200 together. In this embodiment, the first clamping arm 11, the connecting arm 12 and the second clamping arm 13 are sequentially connected to form a linkage structure, so that the first clamping arm 11 and the second clamping arm 13 can be moved simultaneously to clamp the joint 200 by only moving the first clamping arm 11, which can simplify the operation of the joint fixing device 100, and the joint fixing device 100 is more convenient to use.

[0055] Specifically, the first clamping arm 11, the connecting arm 12 and the second clamping arm 13 rotate in the same plane or in planes parallel to each other. This has the advantage of making the connection and linkage between the first clamping arm 11, the connecting arm 12 and the second clamping arm 13 more convenient.

[0056] See also Figure 1 and Figure 5 According to one embodiment, the mounting seat 2 includes a first mounting member 21 and a second mounting member 22. The first mounting member 21 can be fixedly mounted on the object to be mounted 300. The second mounting member 22 is fixedly connected to the first mounting member 21. A storage space (not shown) for accommodating the clamping mechanism 1 is formed between the second mounting member 22 and the first mounting member 21. The first mounting member 21 and the second mounting member 22 are both provided with the above-mentioned mounting holes 20 for the connector 200 to pass through, and the positions of the mounting holes 20 of the first mounting member 21 and the mounting holes 20 of the second mounting member 22 correspond. That is, when the connector 200 is connected to the interface 301, the connector 200 passes through the mounting holes 20 of the first mounting member 21 and the mounting holes 20 of the second mounting member 22. In this way, the connector 200 passes through the mounting holes 20 of the first mounting member 21 and the mounting holes 20 of the second mounting member 22 at the same time, and is clamped by the clamping mechanism 1 between the first mounting member 21 and the second mounting member 22.

[0057] Specifically, the second mounting member 22 and the first mounting member 21 are spaced apart from each other to form an accommodating space therebetween for accommodating the clamping mechanism 1 .

[0058] Specifically in Figure 5 In the illustrated embodiment, the first mounting member 21 and the second mounting member 22 are both plate-shaped, and the first mounting member 21 and the second mounting member 22 are spaced apart and arranged parallel to each other.

[0059] Specifically, in one embodiment, when the mounting base 2 is mounted on the object to be mounted 300, the first mounting member 21 is relatively closer to the object to be mounted 300, and the second mounting member 22 is relatively farther from the object to be mounted 300.

[0060] On this basis, please continue to refer to Figure 5 , the joint fixing device 100 further includes a fastener 3, and the fastener 3 mounts the mounting base 2 to the object to be mounted 300.

[0061] Specifically, as Figure 5 and Figure 7 shown, a locking hole 210 is provided on the first mounting member 21, and the fastener 3 can pass through the locking hole 210 to lock the first mounting member 21 to the object to be mounted 300, that is, the fastener 3 fixedly mounts the first mounting member 21 on the object to be mounted 300.

[0062] Please refer to Figure 5 and Figure 6 , a relief portion 224 is provided on the second mounting member 22, and the position of the relief portion 224 corresponds to the position of the locking hole 210, so that the fastener 3 can penetrate into the locking hole 210 from one side of the second mounting member 22, thereby facilitating the installation of the joint fixing device 100 to the object to be mounted 300. The advantage of this is that the fastener 3 does not need to protrude from the second mounting member 22, and the overall joint fixing device 100 is more concise. In a specific application, the relief portion 224 can be a through hole formed on the second mounting member 22, or a notch formed at the edge of the second mounting member 22, and the form of the relief portion 224 is not particularly limited.

[0063] Of course, it can be understood that it is also possible to mount the mounting base 2 to the object to be mounted 300 by the way that the first mounting member 21 is far from the object to be mounted 300 and the second mounting member 22 is close to the object to be mounted 300. Correspondingly, the above-mentioned locking hole 210 can be formed on the second mounting member 22, and the fastener 3 locks the second mounting member 22 on the object to be mounted 300 after passing through the locking hole 210. The above-mentioned relief portion 224 can be formed on the first mounting member 21, and others will not be elaborated.

[0064] Please refer to Figure 5 , Figure 8 and Figure 9 , according to an embodiment, a first connecting shaft 221 and a second connecting shaft 222 are provided on the side of the second mounting member 22 close to the first mounting member 21. Please refer to Figure 10A connection hole 110 is formed at one end of the first clamping arm 11 for the first connection shaft 221 to pass through. The first connection shaft 221 passes through the connection hole 110 so that the first clamping arm 11 is rotatably connected to the second mounting member 22. Thus, the first clamping arm 11 can rotate on the second mounting member 22 with the center axis of the first connection shaft 221 as the center axis. The other end of the first clamping arm 11 is a free end for the operator to apply force to move it.

[0065] The first clamping arm 11 is also provided with a mounting shaft 111, which is located between the free end of the first clamping arm 11 and the connecting hole 110, and the end of the connecting arm 12 away from the connecting portion 121 is rotatably connected to the mounting shaft 111. Specifically, the end of the connecting arm 12 away from the connecting portion 121 is provided with a first rotating hole 120, such as Figure 13 and Figure 15 As shown, the mounting shaft 111 is passed through the first rotating hole 120 and is rotatably connected to the connecting arm 12, and the other end of the connecting arm 12 is rotatably connected to the second clamping arm 13 via its connecting portion 121. Thus, the connecting arm 12 is connected to both the first clamping arm 11 and the second clamping arm 13, which allows the connecting arm 12 to rotate under the drive of the first clamping arm 11, and further, the second clamping arm 13 to rotate under the drive of the connecting arm 12.

[0066] See also Figure 11 and Figure 12 , one end of the second clamping arm 13 is rotatably connected to the second connecting shaft 222, and the connecting arm 12 is rotatably connected to the end of the second clamping arm 13 away from the second rotating shaft 222 through the connecting portion 121. Specifically, a second rotating hole 130 is formed at the end of the second clamping arm 13 away from the connecting arm 12, and the second connecting shaft 222 on the second mounting member 22 is penetrated through the second rotating hole 130, so that the second clamping arm 13 is rotatably connected to the second mounting member 22. Figure 6 and Figure 7 By means of the arrangement of the first connecting shaft 221 and the second connecting shaft 222 , the first clamping arm 11 and the second clamping arm 13 will not be separated from the second mounting member 22 , that is, the clamping mechanism 1 will not be separated from the mounting seat 2 .

[0067] See also Figure 6 When the free end of the first clamping arm 11 is Figure 6 The position shown is counterclockwise upward (with Figure 6When it is toggled (with the direction shown in the middle paper surface as the standard), since the mounting shaft 111 is located between the free end of the first clamping arm 11 and the connecting hole 110, the mounting shaft 111 is driven to rotate counterclockwise upward with the first connecting shaft 221 as the rotation axis. Thus, one end of the connecting arm 12 away from the connecting portion 121 rotates upward. Correspondingly, the connecting portion 121 of the connecting arm 12 rotates downward, and the second clamping arm 13 is driven to rotate downward. At this time, the first clamping arm 11 and the second clamping arm 13 move relatively away from each other. That is, at this time, the joint 200 cannot be clamped, and the originally clamped joint 200 can be released. At this time, the joint fixing device 100 is in a non-clamping state. When it is necessary to change from the non-clamping state to the clamping state, a force is applied to the first clamping arm 11 in the downward direction. The free end of the first clamping arm 11 rotates clockwise downward with the first connecting shaft 221 as the rotation axis. One end of the connecting arm 12 away from the connecting portion 121 rotates downward, the connecting portion 121 of the connecting arm 12 rotates upward, and the second clamping arm 13 is driven to rotate upward with the second connecting shaft 222 as the rotation axis. At this time, the first clamping arm 11 and the second clamping arm 13 move relatively closer and tightly abut against the joint 200 passing through the mounting hole 20 respectively, thereby clamping the joint 200.

[0068] Please refer to Figure 13 and Figure 14 , in one embodiment, the connecting portion 121 is a through hole formed at one end of the connecting arm 12 away from the first clamping arm 11. Please refer to Figure 11 and Figure 12 , a convex column 131 is formed on the second clamping arm 13. The convex column 131 rotatably passes through the connecting portion 121, so that the second clamping arm 13 is rotatably connected to the connecting arm 12. In this embodiment, the setting of the connecting portion 121 can ensure that the second clamping arm 13 and the connecting arm 12 are always connected.

[0069] Furthermore, the connecting portion 121 is a circular through hole, the convex column 131 on the second clamping arm 13 is cylindrical, and the diameter of the convex column 131 is smaller than the aperture of the connecting portion 121, so that the convex column 131 has a certain movement space in the connecting portion 121, thereby facilitating the linkage operation of the clamping mechanism 1.

[0070] It should be noted that the connecting portion 121 is not limited to the form of the above through hole. In another embodiment, such as Figure 15 and Figure 16As shown, the connecting portion 121 is a hook-shaped structure formed at one end of the connecting arm 12 away from the first clamping arm 11. The connecting portion 121 can hook the convex column 131 so that the connecting arm 12 can drive the second clamping arm 13 to rotate, especially towards the direction close to the mounting hole 20. In this embodiment, during the rotation of the connecting arm 12, the second clamping arm 13 needs to be hooked by the hook-shaped structure first. Compared with the above-mentioned hook-shaped structure, the through-hole-shaped connecting portion 121 is more convenient for locking operation. The connecting portion 12 in the form of a through-hole can remain connected to the second clamping arm 13 even when the joint fixing device 100 does not clamp the joint 200. However, the connecting portion 12 of the hook-shaped structure needs to be connected to the second clamping arm 13 first during the locking operation, and the operation is relatively cumbersome compared to the through-hole-shaped connecting portion 121. Moreover, the connecting portion 12 of this form is prone to loosening from the second clamping arm 13 during the rotation process. However, the hook-shaped connecting portion 121 is more convenient to manufacture than the through-hole-shaped connecting portion 121.

[0071] Please refer to Figures 5 to 7 , according to an embodiment, a positioning post 223 is further provided between the first mounting member 21 and the second mounting member 22. The free end of the first clamping arm 11 can abut against the positioning post 223 to prevent the first clamping arm 11 from rotating. The positioning post 223 limits the rotation limit position of the first clamping arm 11, so that the first clamping arm 11 can only rotate outward on the side of the positioning post 223 away from the mounting hole 20.

[0072] Specifically, the positioning post 223 can be formed on the first mounting member 21 or on the second mounting member 22. This is essentially the same and does not affect its abutment against the first clamping arm 11, so it will not be elaborated further. In this embodiment, the positioning post 223 is formed on the second mounting member 22, as shown in Figure 8 and Figure 9 shown. In this way, the first mounting member 21 can be generally in the shape of a flat plate as much as possible, which is convenient for its manufacture.

[0073] Please refer to Figure 8 and Figure 9, specifically in one embodiment, the end of the positioning post 223 away from the second mounting member 22 abuts against the first mounting member 21. On the side of the second mounting member 22 facing the first mounting member 21, a third connecting shaft 226 is further formed. The end of the third connecting shaft 226 away from the second mounting member 22 abuts against the first mounting member 21. Thus, the accommodating space between the first mounting member 21 and the second mounting member 22 is maintained by the positioning post 223 and the third connecting shaft 226 for the clamping mechanism 1 to be installed and for the clamping mechanism 1 to facilitate its operation. The end of the third connecting shaft 226 and the positioning post 223 away from the second mounting member 22 form hole structures such as screw holes and are connected to the first mounting member 21 through locking structures such as screws (not shown). In other words, the third connecting post 226 not only serves to maintain the accommodating space for installing the clamping mechanism 1, but also assists in realizing the fixed connection between the first mounting member 21 and the second mounting member 22; while the positioning post 223 not only serves the same function as the third connecting post 226, but also additionally serves to limit the rotation limit of the first clamping arm 11.

[0074] It should be noted that the way of fixedly connecting the first mounting member 21 and the second mounting member 22 is not limited to the above method. For example, the first mounting member 21 and the second mounting member 22 can also be directly fixedly connected by bolts respectively connected to the first mounting member 21 and the second mounting member 22, and the gap between the two is maintained. At this time, the positioning post 223 may or may not abut against the first mounting member 21, and the third connecting post 226 may be provided or omitted.

[0075] Moreover, since during use, the side of the second mounting member 22 away from the first mounting member 21 faces outward, by arranging the third connecting shaft 226 and the positioning post 223 on the second mounting member 22, the screws for fixedly connecting the first mounting member 21 and the second mounting member 22 are not visible from the side of the second mounting member 22 away from the first mounting member 21.

[0076] As Figure 6 and Figure 10 shown, further, a recess 113 is provided on the first clamping arm 11. When the first clamping arm 11 abuts against the positioning post 223, the positioning post 223 can be at least partially received in the recess 113. The advantage of this is that the positioning post 223 can limit the first clamping arm 11 and prevent the first clamping arm 11 from shaking possibly in the length direction.

[0077] Please refer to Figure 10 and Figure 16, in one embodiment, one end of the first clamping arm 11 away from the free end is a cam end 114, the connecting hole 110 is located at the cam end 114. When the first clamping arm 11 rotates, the cam end 114 can abut against the joint 200 and rotate relative to the joint 200. The first clamping arm 11 is further provided with an abutting protrusion 112, and the abutting protrusion 112 can cooperate with the second clamping arm 13 to clamp the joint 200. With such a setting, when the first clamping arm 11 and the second clamping arm 13 jointly clamp the joint 200, without an external force pushing the free end of the first clamping arm 11, the first clamping arm 11 will not rotate spontaneously without other positioning structures, and can maintain the state of clamping the joint 200 by the first clamping arm 11 and the second clamping arm 13.

[0078] Wherein, when the free end of the first clamping arm 11 is toggled, the cam end 114 rotates around the first connecting shaft 221 accordingly. At the same time, the cam end 114 slides along the surface of the joint 200, so that the abutting protrusion 112 abuts against the joint 200.

[0079] It should also be noted that when the positioning post 223 abuts against the recess 113, the recess 113 enables the first clamping arm 11 to be as close as possible to the mounting hole 20 when in the state of clamping the joint 200. Thus, the abutting protrusion 112 can be as close as possible to the mounting hole 20, which is beneficial to ensuring the clamping effect.

[0080] Please refer to Figure 13 、 Figure 14 and Figure 17 , in one embodiment, when the first clamping arm 11 and the second clamping arm 13 clamp the joint 200, the first connecting shaft 221 ( Figure 17 Point A in Figure 17 is the position of the first connecting shaft 221, that is, the position of the connecting hole 110 when the first clamping arm 11 and the second clamping arm 13 clamp the joint 200), the mounting shaft 111 of the first clamping arm 11 ( Figure 17 Point C in Figure 17Point D in the figure is the intersection point of the extension line of line segment AB in the locked state and the movement trajectory of point C around point A, and angle DAC is less than or equal to 45°. The advantage of this is that it is more convenient to apply force and can keep the clamping mechanism 1 in the clamping state and the non-clamping state. When using the joint fixing device 100, the operator needs to forcefully move the free end of the first clamping arm 11 downward. After the first clamping arm 11 rotates, it abuts against the positioning post 223 and tightly clamps the joint 200, further ensuring that without the assistance of external force, the clamping mechanism 1 will not loosen, and thus the joint 200 will not be released. When the joint fixing device 100 is not needed, the operator needs to forcefully move the free end of the first clamping arm 11 upward. The first clamping arm 11 rotates and moves away from the positioning post 223, and the first clamping arm 11 and the second clamping arm 13 release the joint 200. Similarly, without the assistance of external force, the first clamping arm 11 will not automatically fall back but always remain in a state of being away from the second clamping arm 13.

[0081] Please refer to Figure 11 and Figure 12 , in one embodiment, the second clamping arm 13 has a clamping surface 134, that is, the surface on the second clamping arm 13 that directly contacts the joint 200. When the second clamping arm 13 and the first clamping arm 11 jointly clamp the joint 200, the clamping surface 134 abuts against the joint 200, and a stepped groove 132 is formed by the depression of the edge of the clamping surface 134. When the mounting base 2 is installed on the object to be installed 300, the edge of the clamping surface 134 with the stepped groove 132 is close to the object to be installed 300. Specifically, the edge of the clamping surface 134 close to the first mounting member 21 is recessed to form the stepped groove 132. Since the material of the outer shell of the joint 200 is usually a deformable material such as rubber or plastic, when the first clamping arm 11 and the second clamping arm 13 jointly and tightly clamp the joint 200, the clamped part of the joint 200 will cause slight expansion of the surrounding part under pressure, and the stepped groove 132 can make room for the expanded part of the joint 200. At the same time, the expanded part of the joint 200 can abut against the groove wall of the stepped groove 132 to increase the friction between the joint 200 and the second clamping arm 13, further strengthening the connection between the joint fixing device 100 and the joint 200 and preventing the joint 200 from falling off and moving.

[0082] Please refer to Figure 8 , Figure 9 and Figure 11 , in one embodiment, the mounting base 2 is provided with a blocking protrusion 225. As Figure 11 shown, the second clamping arm 13 is provided with a blocking groove 133. The blocking protrusion 225 can abut against the groove wall of the blocking groove 133 to prevent the second clamping arm 13 from rotating in the direction away from the first clamping arm 11 when the first clamping arm 11 and the second clamping arm 13 do not clamp the joint 200.

[0083] Specifically, the blocking protrusion 225 can be disposed on the second mounting member 22; the blocking groove 133 on the second clamping arm 13 is disposed on the side of the second clamping arm 13 facing the second mounting member 22. Of course, vice versa is also possible, that is, the blocking protrusion 225 is disposed on the first mounting member 21, and the blocking groove 133 on the second clamping arm 13 is disposed on the side of the second clamping arm 13 facing the first mounting member 21. There is no special limitation on this, as long as the second clamping arm 13 can be blocked between the first mounting member 21 and the second mounting member 22.

[0084] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A joint fixing device that can be installed on an object to be installed, the object to be installed having an interface capable of connecting to a joint, characterized in that, The joint fixing device includes: a mounting base which can be fixed on the object to be installed, and a mounting hole for the joint to pass through is formed on the mounting base; and a clamping mechanism including a first clamping arm and a second clamping arm. Both the first clamping arm and the second clamping arm are rotatably connected to the mounting base, and the first clamping arm and the second clamping arm can cooperate with each other to clamp the joint connected to the interface. The clamping mechanism further includes a connecting arm connected between the first clamping arm and the second clamping arm. When the first clamping arm rotates, it can pull the connecting arm to rotate and drive the second clamping arm to rotate, so that the second clamping arm rotates towards the direction close to the first clamping arm, and the first clamping arm and the second clamping arm respectively abut tightly against the joint and jointly clamp the joint.

2. The joint fixing device according to claim 1, wherein, One end of the connecting arm is rotatably connected to the first clamping arm, and a connecting portion is provided at the other end of the connecting arm. Wherein, the connecting arm is rotatably connected to the second clamping arm through the connecting portion. One end of the first clamping arm is rotatably connected to the mounting base, and the other end is a free end. The portion between the end of the first clamping arm rotatably connected to the mounting base and the free end is rotatably connected to the end of the connecting arm far from the connecting portion.

3. The joint fixing device according to claim 2, characterized in that, The connecting portion is a through hole formed on the connecting arm, and a convex column is formed on the second clamping arm. The convex column rotatably passes through the connecting portion to rotatably connect the second clamping arm and the connecting arm; or, the connecting portion is a hook-shaped structure formed at the end of the connecting arm far from the first clamping arm, and a convex column is formed on the second clamping arm. The connecting portion can hook the convex column so that the connecting arm can drive the second clamping arm to rotate.

4. The joint fixing device according to claim 2, characterized in that, The joint fixing device further includes a fastener for mounting the mounting base to the object to be installed; and / or, a mounting shaft is further provided on the first clamping arm. The mounting shaft is located between the end of the first clamping arm rotatably connected to the mounting base and the free end. A first rotation hole is provided at the end of the connecting arm far from the connecting portion. The mounting shaft passes through the first rotation hole and is rotatably connected to the connecting arm.

5. The joint fixing device according to claim 2, characterized in that, The mounting base includes a first mounting member and a second mounting member. One of the first mounting member and the second mounting member can be fixedly mounted on the object to be installed. The second mounting member is fixedly connected to the first mounting member, and an accommodation space for accommodating the clamping mechanism is formed between the second mounting member and the first mounting member. Mounting holes for the joint to pass through are formed on both the first mounting member and the second mounting member, and the positions of the mounting holes on the first mounting member correspond to those of the mounting holes on the second mounting member; Wherein: A first connecting shaft and a second connecting shaft are provided on one side of the second mounting member close to the first mounting member; a connecting hole for the first connecting shaft to rotatably pass through is formed at one end of the first clamping arm, and the other end of the first clamping arm is the free end. The first connecting shaft passes through the connecting hole to rotatably connect the first clamping arm to the second mounting member; a mounting shaft is further provided on the first clamping arm, and the mounting shaft is located between the free end and the connecting hole. A first rotating hole is provided at one end of the connecting arm away from the connecting portion, and the mounting shaft passes through the first rotating hole to rotatably connect with the connecting arm. One end of the second clamping arm is rotatably connected to the second connecting shaft, and the connecting arm is rotatably connected to one end of the second clamping arm away from the second connecting shaft through the connecting portion; Alternatively, the joint fixing device further includes a fastener. A locking hole is provided on one of the first mounting member and the second mounting member, and the fastener can pass through the locking hole to lock the first mounting member or the second mounting member to the object to be installed; an avoidance portion is provided on the other of the first mounting member and the second mounting member, and the position of the avoidance portion corresponds to the position of the locking hole; the one of the first mounting member and the second mounting member provided with the locking hole is close to the object to be installed, and the one provided with the avoidance portion is far from the object to be installed.

6. The joint fixing device according to claim 5, characterized in that, A convex column for rotatably connecting with the connecting arm is provided at one end of the second clamping arm away from the second connecting shaft; when the first clamping arm and the second clamping arm clamp the joint, the first connecting shaft, the mounting shaft and the convex column are arranged in a triangle, and the included angle between the line connecting the convex column to the first connecting shaft and the line connecting the first connecting shaft to the mounting shaft is greater than or equal to 135°.

7. The joint fixing device according to claim 5, wherein, A positioning column is further provided between the first mounting member and the second mounting member, and the free end of the first clamping arm can abut against the positioning column to prevent the first clamping arm from rotating.

8. The joint fixing device according to claim 5, characterized in that, One end of the first clamping arm away from the free end is a cam end, and the connecting hole is located at the cam end. When the first clamping arm rotates, the cam end can abut against the joint and rotate relative to the joint. A holding protrusion is further provided on the first clamping arm, and the holding protrusion can cooperate with the second clamping arm to clamp the joint.

9. The joint fixing device according to any one of claims 1 to 8, characterized in that, The second clamping arm has a clamping surface. When the second clamping arm and the first clamping arm jointly clamp the joint, the clamping surface abuts against the joint. A step groove is recessed at the edge of the clamping surface. When the mounting seat is mounted on the object to be installed, the edge of the clamping surface with the step groove is close to the object to be installed.

10. The joint fixing device according to any one of claims 1 to 8, characterized in that, A blocking protrusion is provided on the mounting seat, and a blocking groove is provided on the second clamping arm. The blocking protrusion can abut against the groove wall of the blocking groove to prevent the second clamping arm from rotating in a direction away from the first clamping arm when the first clamping arm and the second clamping arm do not clamp the joint.

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