Clamping and fixing device

Abstract

The utility model discloses a clamping and fixing device which comprises a base, a connecting structure connected with the base and a clamping and fixing structure connected with the connecting structure. The clamping mechanism is connected with the connecting structure; the clamping mechanism comprises a clamping arm and a locking element; the clamping arms are rotatably connected to the connecting structure; the clamping arm is provided with a clamping and fixing position, and the locking element is used for limiting rotation of the clamping arm when the clamping arm is located at the clamping and fixing position. The clamping and fixing device is simple in structure, convenient to operate and stable and reliable in clamping and fixing, and meets the requirement for object transportation.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixation, in particular to a clamping device. Background Art

[0002] During the existing transportation of objects, a clamping and fixing device is required to clamp and fix the objects to prevent them from jumping. However, the existing clamping and fixing devices are generally large in size and easily interfere with and collide with the transported objects. The clamping and unclamping processes are cumbersome and the operation efficiency is low, which is not conducive to the clamping and transportation of large quantities of objects. In addition, the existing clamping and fixing devices are either complex in structure, difficult to manufacture and costly, or have poor clamping position stability and low precision, which can easily cause damage to the objects. The above problems restrict their application scenarios. It is necessary to improve the existing clamping and fixing devices to meet the requirements of object transportation. Utility Model Content

[0003] In view of the above defects or improvement needs of the prior art, the utility model provides a clamping device with simple structure, easy operation, stable and reliable clamping, which meets the needs of object transportation.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] In some embodiments, a clamping device is provided, comprising:

[0006] base,

[0007] A connecting structure connected to the base;

[0008] a clamping mechanism connected to the connecting structure;

[0009] The clamping mechanism includes a clamping arm and a locking element;

[0010] The clamping arm is rotatably connected to the connecting structure;

[0011] The clamp arm has a clamping position, and the locking element is used to limit the rotation of the clamp arm when the clamp arm is located at the clamping position.

[0012] In some embodiments, the clamping arm has a reset position, and the clamping device further comprises:

[0013] A reset mechanism is connected to the clamping mechanism and the connecting structure, and is used to drive the clamping arm to return from the clamping position and / or remain in the reset position.

[0014] In some embodiments, the reset mechanism includes a first elastic element, one end of the first elastic element is connected to the connection structure, and the other end is connected to the clamping arm.

[0015] In some embodiments, the locking element includes a limiting rod, a first end of the limiting rod having a limiting surface, and the limiting rod is movably connected to the connecting structure;

[0016] The clamping arm is provided with a limiting recess, and the limiting surface is used to abut against the limiting recess when the clamping arm is located at the clamping position.

[0017] In some embodiments, the locking element includes a second elastic element, which is connected to the limiting rod. The second elastic element has an initial elastic force and is used to drive the limiting rod to move in the clamping position so that the limiting surface abuts the limiting recess.

[0018] In some embodiments, the connection structure includes a connection plate having a first through hole;

[0019] The locking element includes a support plate having a second through hole;

[0020] The limiting rod has a convex portion, and the convex portion is at least partially located between the connecting plate and the supporting plate;

[0021] The first end of the limiting rod passes through the first through hole of the connecting plate, and the second end of the limiting rod passes through the second through hole of the supporting plate;

[0022] The second elastic element is located between the support plate and the protrusion.

[0023] In some embodiments, the limiting surface is a conical surface or a wedge-shaped surface.

[0024] In some embodiments, the limiting surface is a conical surface, the limiting recess is a conical groove or a conical surface matching the conical surface, and the cone angle of the conical surface is 5°-30°;

[0025] Alternatively, the limiting surface is a wedge-shaped surface, the limiting recess is an inclined surface matching the wedge-shaped surface, and the inclination angle of the wedge-shaped surface is 5°-30°.

[0026] In some embodiments, the clamping position of the clamping arm is horizontal.

[0027] The clamping mechanism includes an unlocking element, which is used to drive the limiting rod to overcome the elastic force of the second elastic element and move in a direction away from the limiting recess, thereby unlocking the clamping arm;

[0028] The unlocking element includes a pull ring, and the pull ring is arranged at the second end of the limiting rod;

[0029] The moving direction of the limit rod is horizontal.

[0030] Alternatively, the moving direction of the limiting rod forms a preset angle with the horizontal direction, so that when the clamping arm is unlocked, the limiting rod moves obliquely upward.

[0031] In some embodiments, the second elastic element includes a compression spring, and the compression spring is sleeved on the limiting rod;

[0032] The first elastic element includes at least one of a tension spring, a torsion spring, and an elastic rope.

[0033] In some embodiments, the connection structure includes a support base having a support hole;

[0034] The clamping mechanism includes a rotating shaft, and the rotating shaft is arranged in the supporting hole;

[0035] The clamping arm includes a shaft hole, and the clamping arm is connected to the rotating shaft through the shaft hole;

[0036] The axis direction of the rotating shaft is perpendicular to the moving direction of the limiting rod.

[0037] In some embodiments, the first elastic element includes a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the connecting plate, and the other end is connected to the clamping arm;

[0038] Alternatively, the first elastic element includes a tension spring or an elastic rope, one end of the tension spring or elastic rope is connected to the connecting plate, and the other end is connected to the clamping arm.

[0039] In some embodiments, the support seat is a shell structure, which includes a top surface, a front surface and two side surfaces. The bottom of the shell structure is fixedly connected to the base. There is an opening above the support seat, which is L-shaped, passing through and connecting the top surface and the front surface, and the clamping arm extends from the opening.

[0040] In some embodiments, the opening forms a clamping limit portion at the front, and the clamping limit portion is the lower edge of the opening, which is used to limit the rotation angle of the clamping arm away from the reset position.

[0041] In some embodiments, the clamping device includes a reset limiter, which is provided on the support seat and is used to limit the position of the clamping arm when resetting;

[0042] The opening forms the reset limit portion on the top surface, and the reset limit portion is the upper edge of the opening.

[0043] In some embodiments, the support plate is disposed on a side of the support base opposite to the front face, and the support plate is integrally formed with the base;

[0044] The connecting plate and the base are integrally formed.

[0045] In some embodiments, the end of the clamping arm has a clamping block, the clamping block is fixedly connected to the clamping arm, and the clamping block and the clamping arm are made of different materials;

[0046] The rigidity of the clamping block is smaller than that of the clamping arm, and / or the hardness of the clamping block is smaller than that of the clamping arm.

[0047] In some embodiments, the clamping device includes a tightening structure, and the tightening structure is provided at the end of the clamping arm.

[0048] In some embodiments, the end of the clamping arm has a through hole, and the tightening structure includes a push rod and an axial fixing piece. The push rod passes through the through hole, and the push rod is fixed to the clamping arm through the axial fixing piece; the through hole is a waist-shaped hole extending along the length direction of the clamping arm.

[0049] In some embodiments, the end of the push rod has a tightening block, the tightening block is fixedly connected to the push rod, and the tightening block and the push rod are made of different materials;

[0050] The rigidity of the tightening block is smaller than that of the ejector rod, and / or the hardness of the tightening block is smaller than that of the ejector rod.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] By limiting the rotation of the clamping arm when it is in the clamping position through the locking element, a stable lock can be formed when clamping an object. The clamping device of the embodiment of the present application has a simple structure, and locking and unlocking are achieved through the locking element and the unlocking element. Some embodiments have a reset mechanism, which makes the placement, clamping and unlocking of objects very convenient. In some embodiments, the clamping limit portion and the limit surface can achieve stable and reliable clamping, meeting the requirements of object transportation. The technical effects of this application are not limited to the above examples, and the specific technical effects are described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 Schematic diagram of the overall structure of the clamping device in some embodiments of the present invention.

[0054] Figure 2 It is a side view of the clamping device in some embodiments of the present invention.

[0055] Figure 3 Schematic diagram of the internal structure of the clamping device in some embodiments of the present invention ( Figure 2 AA cross-section diagram).

[0056] Figure 4 Schematic diagram of the internal structure of the clamping device in some embodiments of the present invention ( Figure 2 BB cross-section diagram).

[0057] Figure 5 Schematic diagram of the limiting rod in some embodiments of the present invention.

[0058] Figure 6 Schematic diagram of the clamping arm in some embodiments of the present invention.

[0059] Figure 7 This is a partial structural diagram of some embodiments of the present invention when the clamping arm is in the clamping position.

[0060] Figure 8 Schematic diagram of the clamping arm in some embodiments of the present invention.

[0061] Figure 9 This is a schematic diagram of the overall structure of the clamping device in some embodiments of the present invention in the reset position.

[0062] Figure 10 This is a schematic diagram of the overall structure of the clamping device in some embodiments of the present invention in the clamping position.

[0063] Figure 11 Schematic diagram of the clamping arm in some embodiments of the present invention.

[0064] Figure 12 This is a partial structural schematic diagram of the clamping device in some embodiments of the present invention when it is in the clamping position.

[0065] Figure 13 This is a partial structural schematic diagram of the clamping device in some embodiments of the present invention when it is in the clamping position.

[0066] Figure 14 Schematic diagram of the clamping device in some embodiments of the present invention in the clamping state.

[0067] Figure 15 Schematic diagram of the clamping device in some embodiments of the present invention in the clamping state.

[0068] Figure 16 Schematic diagram of the clamping device in some embodiments of the present invention in the reset position.

[0069] Description of reference numerals: base 1000; connecting structure 2000, connecting plate 2100, first through hole 2101, support seat 2200, top surface 2210, front surface 2220, side surface 2230, support hole 2231, opening 2240, reset limit portion 2241, clamping limit portion 2242; clamping mechanism 3000, clamping arm 3100, limit recess 3110, shaft hole 3120, waist-shaped hole 3130, locking element 3200, limit rod 3210, second elastic element 3 220, compression spring 3221, support plate 3230, second through hole 3231, protrusion 3240, limiting surface 3250, limiting block 3260, radial limiting portion 3261, circumferential limiting portion 3262; rotating shaft 3300; clamping block 3400, tightening structure 3500, push rod 3510, axial fixing member 3520, tightening block 3530; unlocking element 3600, reset mechanism 4000, first elastic element 4100, torsion spring 4101, object 200, base 100. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0071] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "transverse," "longitudinal," "top," "bottom," "inner," "outer," and "circumferential" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. The interpretation of such terms should be based on the perspective of persons skilled in the art.

[0072] In this utility model, unless otherwise expressly defined or limited, terms such as "disposed," "installed," "connected," "connected," and "fixed" should be understood broadly from the perspective of those skilled in the art. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; "connected" may refer to a direct connection or an indirect connection through an intermediate medium, and may refer to internal communication between two elements or an interaction between two elements, unless otherwise expressly defined. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0074] Figure 1 Schematic diagram of the overall structure of the clamping device in some embodiments of the present invention. Figure 2 It is a side view of the clamping device in some embodiments of the present invention. Figure 3 Schematic diagram of the internal structure of the clamping device in some embodiments of the present invention ( Figure 2 AA cross-section diagram). Figure 1-Figure 3 In some embodiments, the clamping device includes: a base 1000, a connecting structure 2000, and a clamping mechanism 3000. The connecting structure 2000 is connected to the base 1000. The clamping mechanism 3000 is connected to the connecting structure 2000. The clamping mechanism 3000 includes a clamping arm 3100 and a locking element 3200. The clamping arm 3100 is rotatably connected to the connecting structure 2000. The clamping arm 3100 has a clamping position (such as Figure 1 and Figure 2 As shown in FIG, the locking element 3200 is used to limit the rotation of the clamping arm 3100 when the clamping arm 3100 is in the clamping position.

[0075] Figure 14 Schematic diagram of the clamping device clamping an object in some embodiments of the present invention. Figure 14 During use, the clamping device can be fixed to the clamping base 100 via the base, and the clamped object 200 can be placed on the base. In the clamping position, the clamped object is located below the clamping arm, and the locking element restricts the rotation of the clamping arm. The object is tightened and fixed between the base and the clamping arm, and the clamping arm can firmly clamp the object.

[0076] The clamping device in the embodiments of the present application utilizes a clamping arm and a locking element, offering a simple structure, easy operation, and high clamping and securing efficiency. In some embodiments, the clamping device is used for transporting objects, particularly long-distance land transport. In some embodiments, the objects may be battery packs. The clamping device is used for transporting battery packs, offering simple and reliable clamping without damaging the object, making it suitable for long-distance transport of large quantities of objects.

[0077] Figure 16 Schematic diagram of the clamping device in some embodiments of the present invention in the reset position. Figure 3 and Figure 16 In some embodiments, the clamping arm 3100 has a reset position, and the clamping device further includes a reset mechanism 4000. The reset mechanism 4000 is connected to the clamping mechanism 3000 and the connecting structure 2000 and is used to drive the clamping arm 3100 to return from the clamping position and / or maintain it in the reset position. Before clamping an object, the reset mechanism maintains the clamping arm in the reset position to facilitate the placement of the object. When the clamped object needs to be disassembled and unloaded, the reset mechanism drives the clamping arm from the clamping position to the reset position, thereby releasing the clamping of the object and facilitating the unloading and transportation of the object.

[0078] Specifically, in some embodiments, the reset mechanism 4000 includes a first elastic element 4100, one end of which is connected to the connection structure 2000 and the other end of which is connected to the clamping arm 3100. In some embodiments, the first elastic element has a restoring force, so that when the locking element releases the locking restriction on the clamping arm, the clamping arm automatically returns to the reset position under the action of the restoring force of the first elastic element.

[0079] In some embodiments, the first elastic element 4100 includes at least one of a tension spring, a torsion spring, and an elastic rope. Figure 7 In the illustrated embodiment, the first elastic element 4100 is a torsion spring 4101. Torsion springs are stable and reliable. In some embodiments, the first elastic element 4100 comprises a tension spring. The pull ring is easy to install, the elastic force is easier to adjust and control, and during the return process, the impact of the clamping arm is softer, making it safer.

[0080] Figure 5 Schematic diagram of the limiting rod in some embodiments of the present invention. Figure 3-Figure 5 In some embodiments, the locking element 3200 includes a limiting rod 3210 . A first end of the limiting rod 3210 has a limiting surface 3250 , and the limiting rod 3210 is movably connected to the connecting structure 2000 .

[0081] Figure 6 Schematic diagram of the clamping arm in some embodiments of the present invention. Figure 7 This is a partial structural diagram of the clamping arm in some embodiments of the present invention when it is in the clamping position. Figure 4-Figure 7 The clamping arm 3100 has a limiting recess 3110 , and the limiting surface 3250 is used to abut against the limiting recess 3110 when the clamping arm 3100 is in the clamping position.

[0082] In the embodiments of the present application, the first end of the limiting rod is the end of the limiting rod proximal to the clamping arm. In some embodiments, the limiting surface may be an arcuate surface, a conical surface, a flat surface, or the like. In some embodiments, the first end of the limiting rod is cylindrical, and the limiting surface may be the outer surface of the cylinder, i.e., an arcuate surface. Correspondingly, the limiting recess may be a cylindrical hole.

[0083] In some embodiments, the limiting surface 3250 is a conical surface or a wedge-shaped surface. The conical surface or the wedge-shaped surface allows the limiting surface and the clamping arm to form a self-locking and fixed position, making the positioning more stable, reliable and accurate.

[0084] refer to Figure 5 and Figure 6 In some embodiments, the first end of the limiting rod is a positioning pin structure, and the limiting recess is a pin hole.

[0085] In some embodiments, the limiting surface 3250 is a conical surface, and the limiting recess 3110 is a conical groove or conical surface that matches the conical surface. In some embodiments, the conical surface has a cone angle of 5-30°. The conical surface can be a cylindrical cone of the positioning pin structure. The cone angle is the angle between the conical surface and the cone axis.

[0086] refer to Figure 8 In some embodiments, the limiting surface 3250 is a wedge-shaped surface, and the limiting recess 3110 is an inclined surface that matches the wedge-shaped surface. In some embodiments, the wedge-shaped surface has an inclination angle of 5-30°. In the embodiments of the present application, the inclination angle of the wedge-shaped surface is 5-30°, which can achieve self-locking and position fixation, and also avoid increasing the difficulty of unlocking.

[0087] refer to Figure 8 and Figure 13 In some embodiments, the wedge-shaped surface is provided on the limiting block 3260. In some embodiments, the limiting block 3260 is fixedly connected to the first end of the limiting rod. In some embodiments, the limiting block and the limiting rod are integrally formed.

[0088] In some embodiments, the locking element 3200 includes a second elastic element 3220. The second elastic element 3220 is connected to the limiting rod 3210. The second elastic element 3220 has an initial elastic force, which is used to drive the limiting rod 3210 to move in the clamping position, so that the limiting surface 3250 abuts the limiting recess 3110. In the embodiments of the present application, the initial elastic force of the second elastic element automatically drives the limiting rod to move when the clamping arm reaches the clamping position, so that the limiting surface abuts the limiting recess, thereby locking the clamping arm.

[0089] Figure 4 Schematic diagram of the internal structure of the clamping device in some embodiments of the present invention ( Figure 2 BB cross-section diagram). Figure 4 and Figure 7 In some embodiments, the connection structure 2000 includes a connection plate 2100 having a first through-hole 2101 therein. The locking element 3200 includes a support plate 3230 having a second through-hole 3231 therein. The limiting rod 3210 has a protrusion 3240 therein, which is at least partially located between the connection plate 2100 and the support plate 3230. The first end of the limiting rod 3210 passes through the first through-hole 2101 of the connection plate 2100, and the second end of the limiting rod 3210 passes through the second through-hole 3231 of the support plate 3230. The second elastic element 3220 is located between the support plate 3230 and the protrusion 3240.

[0090] Specifically, refer to Figure 8 In some embodiments, the first end of the limiting rod has a limiting block 3260 , and the wedge surface 3250 is located above the limiting block 3260 .

[0091] In some embodiments, the limiting rod has a radial limiting portion 3261, which is used to limit the radial movement of the limiting rod so that the limiting rod can only move in the axial direction, that is, the length direction of the limiting rod. In some embodiments, the radial limiting portion and the protrusion are an integral structure.

[0092] In some embodiments, the radial limiting portion has a shape and assembly size that matches the first through hole 2101 on the connecting plate 2100 .

[0093] In some embodiments, the limiting rod has a circumferential limiting portion 3262, which is used to limit the limiting rod's circumferential rotation, i.e., rotation about its own axis. By providing both radial and circumferential limiting portions, the limiting rod can only move axially, i.e., along its length. In some embodiments, the circumferential limiting portion and the radial limiting portion are integrally structured, having a shape and assembly dimensions that match those of the first through hole 2101.

[0094] In some embodiments, the circumferential limiting portion and the radial limiting portion may also be provided at the second through hole, and have a shape and assembly size matching those of the second through hole.

[0095] Specifically, the radial limiting portion can be a cylindrical surface, and the circumferential limiting portion can be cut to form a plane at the radial limiting portion. The circumferential limiting portion can be arranged above the radial limiting portion ( Figure 8 shown), below, or both above and below.

[0096] In some embodiments, the inclination angle of the wedge surface is 5-30°. Figure 13 The inclination angle of the wedge surface is the size of the wedge angle A. The limiting recess is an inclined surface matching the wedge surface.

[0097] refer to Figure 13 In some embodiments, there is only one limiting surface between the clamp arm and the locking element. The locking element has a wedge-shaped surface, and the clamp arm has a corresponding inclined surface. The abutment between the wedge-shaped surface and the inclined surface restricts rotation of the clamp arm in one direction. Rotation in the opposite direction is restricted by the clamping limiter or the clamped object. This structural arrangement simplifies the structure and allows the clamp arm to better fit the object in the direction of clamping, providing a more secure fixation.

[0098] In some embodiments, the clamping mechanism 3000 includes an unlocking element 3600, which is configured to drive the limiting rod 3210 to overcome the elastic force of the second elastic element 3220 and move away from the limiting recess 3110, thereby unlocking the clamping arm 3100. To remove the clamped object, the unlocking element 3600 is simply driven to move away from the limiting recess 3110 to release the clamping arm. The clamping arm then automatically springs up and remains in its reset position under the action of the reset mechanism, facilitating the removal of the object.

[0099] In some embodiments, the unlocking element 3600 includes a pull ring, which is disposed at the second end of the limiting rod 3210. Specifically, the pull ring is disposed on the outer side of the support plate.

[0100] In some embodiments, the movement direction of the limiting rod 3210 is parallel to the direction of the clamping arm when it is in the clamping position.

[0101] In some embodiments, the clamping arm is positioned horizontally. The limiting rod 3210 moves horizontally. This horizontal orientation facilitates design and manufacturing. In some embodiments, the limiting rod 3210 moves at a predetermined angle to the horizontal, such that when the clamping arm 3100 is unlocked, the limiting rod 3210 moves diagonally upward. This angled orientation facilitates the upward pull operation.

[0102] In some embodiments, the second elastic element 3220 includes a compression spring 3221 , and the compression spring 3221 is sleeved on the limiting rod 3210 .

[0103] In some embodiments, the connection structure 2000 includes a support base 2200, and the support base 2200 has a support hole 2231. The clamping mechanism 3000 includes a rotating shaft 3300, and the rotating shaft 3300 is arranged in the support hole 2231. The clamping arm 3100 includes an axial hole 3120, and the clamping arm 3100 is connected to the rotating shaft 3300 through the axial hole 3120. It is understandable that the rotating shaft can be fixedly connected to the support base or rotatably connected, as long as the clamping arm can rotate. In some embodiments, the rotating shaft is fixedly connected to the support base, and the clamping arm can rotate around the rotating shaft. By ensuring the assembly clearance between the clamping arm and the rotating shaft, the clamping accuracy and stability of the clamping arm are guaranteed.

[0104] In some embodiments, the axis direction of the rotating shaft 3300 is perpendicular to the moving direction of the limiting rod 3210. The end of the clamping arm is the clamping end, the limiting rod is arranged at the end opposite to the clamping end, and the limiting recess and the clamping end are respectively located on both sides of the shaft hole.

[0105] In some embodiments, the first elastic element 4100 includes a torsion spring, which is sleeved on the rotating shaft 3300. One end of the torsion spring is connected to the connecting plate 2100, and the other end is connected to the clamping arm 3100.

[0106] In some embodiments, the first elastic element 4100 includes a tension spring or an elastic string, one end of which is connected to the connecting plate 2100 , and the other end of which is connected to the clamping arm 3100 .

[0107] refer to Figure 1 and Figure 9 In some embodiments, the support base 2200 is a shell structure. The shell structure includes a top surface 2210, a front surface 2220, and two side surfaces 2230. The bottom of the shell structure is fixedly connected to the base 1000. The top of the support base 2200 has an opening 2240. The opening 2240 is L-shaped and passes through and connects the top surface 2210 and the front surface 2220. The clamping arm 3100 extends from the opening 2240.

[0108] In some embodiments, the opening 2240 forms a clamping limit portion 2242 on the front face 2220. The clamping limit portion 2242 is a lower edge of the opening 2240 and is used to limit the rotation angle of the clamping arm 3100 away from the reset position.

[0109] In some embodiments, the clamping device includes a reset limit portion 2241 , which is disposed on the support seat 2200 and is used to limit the position of the clamping arm 3100 during reset.

[0110] In some embodiments, the opening 2240 forms the reset limit portion 2241 on the top surface 2210 , and the reset limit portion 2241 is the upper edge of the opening 2240 .

[0111] The clamping limit portion and the reset limit portion are formed by the L-shaped opening, and the clamping arm extends out of the opening. The rotation range of the clamping arm can be limited by the size of the opening, and the clamping arm can be limited to rotate within the opening range. The structure is simple and the design is ingenious.

[0112] In some embodiments, the support plate 3230 is disposed on a side of the support base 2200 opposite to the front face 2220 , and the support plate 3230 is integrally formed with the base 1000 .

[0113] In some embodiments, the connecting plate 2100 is integrally formed with the base 1000. The integral forming process ensures an assembly effect, simplifies manufacturing and processing, saves materials, and reduces costs.

[0114] refer to Figure 1 In some embodiments, the end of the clamping arm 3100 has a clamping block 3400. The clamping block 3400 is fixedly connected to the clamping arm 3100, and the clamping block 3400 and the clamping arm 3100 are made of different materials.

[0115] In some embodiments, the clamping block 3400 has a stiffness less than that of the clamping arm 3100 .

[0116] In some embodiments, the clamping block 3400 has a lower hardness than the clamping arm 3100 .

[0117] By setting different materials, it is ensured that the clamping arm can clamp the object stably and reliably without damaging the object.

[0118] Figure 9 This is a schematic diagram of the overall structure of the clamping device in some embodiments of the present invention in the reset position. Figure 10 This is a schematic diagram of the overall structure of the clamping device in some embodiments of the present invention in the clamping position. Figure 15 Schematic diagram of the clamping device in some embodiments of the present invention in the clamping state. Figure 9 and Figure 15 In some embodiments, the clamping device includes a tightening structure 3500 , which is disposed at the end of the clamping arm 3100 .

[0119] refer to Figure 9In some embodiments, the end of the clamping arm 3100 has a through hole, and the tightening structure 3500 includes a push rod 3510 and an axial fixing member 3520. The push rod 3510 passes through the through hole, and the push rod 3510 is fixed to the clamping arm 3100 through the axial fixing member 3520.

[0120] In the embodiment of the present application, when the clamping arm is in the clamping position, the push rod does not directly contact and clamp the object, but by adjusting the position of the push rod, the end of the push rod abuts against the object, thereby clamping the object.

[0121] Figure 11 Schematic diagram of the clamping arm in some embodiments of the present invention. Figure 11 In some embodiments, the through hole is a waist-shaped hole 3130 extending along the length of the clamping arm 3100. The waist-shaped hole can be arranged to facilitate adjustment of the clamping range and facilitate selection of the tightening position of the object.

[0122] In some embodiments, the end of the push rod 3510 has a tightening block 3530 , and the tightening block 3530 is fixedly connected to the push rod 3510 .

[0123] In some embodiments, the tightening block 3530 and the ejector rod 3510 are made of different materials.

[0124] In some embodiments, the rigidity of the tightening block 3530 is smaller than that of the push rod 3510 .

[0125] In some embodiments, the hardness of the tightening block 3530 is less than that of the push rod 3510 .

[0126] By setting different materials, it is ensured that the tightening block tightens the object stably and reliably but is not prone to damage the object.

[0127] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A clamping device, characterized in that: The clamping device comprises: base, A connecting structure connected to the base; a clamping mechanism connected to the connecting structure; The clamping mechanism includes a clamping arm and a locking element; The clamping arm is rotatably connected to the connecting structure; The clamp arm has a clamping position, and the locking element is used to limit the rotation of the clamp arm when the clamp arm is located at the clamping position.

2. The clamping device according to claim 1, characterized in that The clamping arm has a reset position, and the clamping device further comprises: A reset mechanism is connected to the clamping mechanism and the connecting structure, and is used to drive the clamping arm to return from the clamping position and / or remain in the reset position.

3. The clamping device according to claim 2, characterized in that The reset mechanism includes a first elastic element, one end of which is connected to the connection structure, and the other end of which is connected to the clamping arm.

4. The clamping device according to claim 3, characterized in that The locking element includes a limiting rod, a first end of the limiting rod has a limiting surface, and the limiting rod is movably connected to the connecting structure; The clamping arm is provided with a limiting recess, and the limiting surface is used to abut against the limiting recess when the clamping arm is located at the clamping position.

5. The clamping device according to claim 4, characterized in that The locking element includes a second elastic element connected to the limiting rod. The second elastic element has an initial elastic force and is used to drive the limiting rod to move in the clamping position so that the limiting surface abuts the limiting recess.

6. The clamping device according to claim 5, characterized in that The connecting structure includes a connecting plate, and the connecting plate has a first through hole; The locking element includes a support plate having a second through hole; The limiting rod has a convex portion, and the convex portion is at least partially located between the connecting plate and the supporting plate; The first end of the limiting rod passes through the first through hole of the connecting plate, and the second end of the limiting rod passes through the second through hole of the supporting plate; The second elastic element is located between the support plate and the protrusion.

7. The clamping device according to claim 6, characterized in that The limiting surface is a conical surface or a wedge-shaped surface.

8. The clamping device according to claim 7, characterized in that The limiting surface is a conical surface, and the limiting recess is a conical groove or a conical surface matching the conical surface, and the cone angle of the conical surface is 5°-30°; Alternatively, the limiting surface is a wedge-shaped surface, the limiting recess is an inclined surface matching the wedge-shaped surface, and the inclination angle of the wedge-shaped surface is 5°-30°; There is only one limiting surface between the clamping arm and the locking element.

9. The clamping device according to claim 6, characterized in that The clamping position of the clamping arm is horizontal. The clamping mechanism includes an unlocking element, which is used to drive the limiting rod to overcome the elastic force of the second elastic element and move in a direction away from the limiting recess, thereby unlocking the clamping arm; The unlocking element includes a pull ring, and the pull ring is arranged at the second end of the limiting rod; The moving direction of the limit rod is horizontal. Alternatively, the moving direction of the limiting rod forms a preset angle with the horizontal direction, so that when the clamping arm is unlocked, the limiting rod moves obliquely upward.

10. The clamping device according to claim 6, characterized in that The second elastic element includes a compression spring, and the compression spring is sleeved on the limiting rod; The first elastic element includes at least one of a tension spring, a torsion spring, and an elastic rope.

11. The clamping device according to any one of claims 6 to 10, characterized in that: The connecting structure includes a support base, and the support base has a support hole; The clamping mechanism includes a rotating shaft, and the rotating shaft is arranged in the supporting hole; The clamping arm includes a shaft hole, and the clamping arm is connected to the rotating shaft through the shaft hole; The axis direction of the rotating shaft is perpendicular to the moving direction of the limiting rod.

12. The clamping device according to claim 11, characterized in that The first elastic element includes a torsion spring, which is sleeved on the rotating shaft, one end of the torsion spring is connected to the connecting plate, and the other end is connected to the clamping arm; Alternatively, the first elastic element includes a tension spring or an elastic rope, one end of the tension spring or elastic rope is connected to the connecting plate, and the other end is connected to the clamping arm.

13. The clamping device according to claim 12, characterized in that The support seat is a shell structure, which includes a top surface, a front surface and two side surfaces. The bottom of the shell structure is fixedly connected to the base. There is an opening above the support seat, which is L-shaped, passing through and connecting the top surface and the front surface, and the clamping arm extends out of the opening.

14. The clamping device according to claim 13, characterized in that The opening forms a clamping limit portion at the front, and the clamping limit portion is the lower edge of the opening, which is used to limit the rotation angle of the clamping arm away from the reset position.

15. The clamping device according to claim 13, characterized in that The clamping device includes a reset limiter, which is provided on the support seat and is used to limit the position of the clamping arm when resetting; The opening forms the reset limit portion on the top surface, and the reset limit portion is the upper edge of the opening.

16. The clamping device according to claim 15, characterized in that The support plate is arranged on a side of the support base opposite to the front face, and the support plate is integrally formed with the base; The connecting plate and the base are integrally formed.

17. The clamping device according to claim 1, characterized in that The end of the clamping arm is provided with a clamping block, the clamping block is fixedly connected to the clamping arm, and the clamping block and the clamping arm are made of different materials; The rigidity of the clamping block is smaller than that of the clamping arm, and / or the hardness of the clamping block is smaller than that of the clamping arm.

18. The clamping device according to claim 1, characterized in that The clamping device includes a tightening structure, and the tightening structure is arranged at the end of the clamping arm.

19. The clamping device according to claim 18, characterized in that The end of the clamp arm has a through hole, and the tightening structure includes a push rod and an axial fixing piece. The push rod passes through the through hole, and the push rod is fixed to the clamp arm through the axial fixing piece. The through hole is a waist-shaped hole extending along the length direction of the clamping arm.

20. The clamping device according to claim 19, characterized in that The end of the push rod is provided with a tightening block, the tightening block is fixedly connected to the push rod, and the tightening block and the push rod are made of different materials; The rigidity of the tightening block is smaller than that of the ejector rod, and / or the hardness of the tightening block is smaller than that of the ejector rod.

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