Clamp

Abstract

According to the clamp, the middle of a first clamping rod and the middle of a second clamping rod are connected, movement of a bottom bearing piece relative to the bottom of the second clamping rod is achieved through control over the included angle of the top, and therefore a clamped object is clamped or released. In the clamping process, a first hollow groove channel is formed in a first clamping rod, a telescopic piece is arranged in the first hollow groove channel, a second connecting screw rod can slide in the first hollow groove channel, vertical movement of a bottom bearing piece is achieved through telescopic operation of the telescopic piece, and therefore automatic stretching in the object clamping process is achieved; the included angle between a bearing structure at the bottom of the clamp and an object bearing surface is reduced, the jacking height of an object in the clamping process is reduced, clamping in a limited space is achieved, the lifting height of the object when the clamp clamps the object is greatly reduced, rapid clamping in the limited space is achieved, the working efficiency is improved, disturbance to the object is reduced, and the object structure is kept relatively stable. Articles in any shape can be clamped, and the adaptability of the clamping device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of object clamping, in particular to a clamp. Background Art

[0002] Currently, there are two types of clamps on the market. One is a clamp that clamps an object in an opposite direction and moves it; the other is a clamp that supports and clamps the object at the bottom and moves it.

[0003] In a structure that relies on the friction between the clamp and the object to overcome gravity and move the object, when the distance to the clamped object is far and the surface of the object is smooth, and the clamping space is limited and restricts the size of the clamp, there is a problem of not being able to effectively lift the moving object due to the limited clamping force, or there is a risk of it falling during the movement.

[0004] The clamp that moves by supporting and clamping the object from the bottom, this type of clamp moves by supporting the object from the side to the bottom of the object to overcome the gravity of the object. In order to stably clamp the object, the bottom supporting structure of the clamp must have sufficient rigidity, so the supporting structure of the clamp has a certain thickness.

[0005] When the object is large, the opening range of the clamp becomes larger, and the inclination angle of the supporting structure will also increase accordingly. When the clamp is closed, the lifting height of the object will also increase accordingly. When the clearance in the height direction of the object is limited, the clamp may not be able to enter the bottom of the object. When the object is clamped at a long distance, considering the actual application situation, the clamping force is not enough to overcome gravity and move the object smoothly, or even the object cannot be moved vertically. Summary of the invention

[0006] The purpose of the present invention is to provide a clamp, by which the height of one of the clamping rods of the clamp can be relatively changed when clamping an object, thereby greatly reducing the height of the object lifted when the clamp is clamped, effectively solving the problem of rapid clamping in a limited space and improving work efficiency.

[0007] To solve the above technical problems, an embodiment of the present invention provides a clamp, including a first clamp rod and a second clamp rod, the middle part of the first clamp rod is connected to the middle part of the first clamp rod by a rotating structure, the first clamp rod or the second clamp rod is provided with a bottom supporting member for supporting the clamped object, the first clamp rod is connected to the rotating structure by a first connecting screw, and the second clamp rod is connected to the rotating structure by a second connecting screw, a first hollow groove is provided in the first clamp rod, a telescopic member is provided in the first hollow groove, the first hollow groove is located at the upper part or the lower part of the first connecting screw, the second connecting screw slides in the first hollow groove, so that the first clamp rod realizes the up and down movement of the bottom supporting member through the telescopic operation of the telescopic member, the first clamp rod and the second clamp rod control the movement of the bottom supporting member relative to the bottom of the second clamp rod by opening and closing the top, thereby clamping or releasing the clamped object.

[0008] Among them, it also includes a second hollow groove arranged inside the first clamping rod, the cross-section of the second hollow groove is the same as the cross-section shape and size of the first hollow groove, a third hollow groove is provided at one end of the second hollow groove, the cross-section size of the third hollow groove is smaller than the cross-section size of the second hollow groove, the axial length of the third hollow groove is greater than the maximum telescopic amount of the telescopic member, the telescopic member is arranged in the second hollow groove, and a positioning rod for positioning the telescopic member is arranged in the second hollow groove, a partition connected to the telescopic member is arranged in the first hollow groove, and a limiting member for limiting the partition is provided on the side of the partition away from the telescopic member.

[0009] In which, the positioning rod and the telescopic part are installed on the same side of the partition, the positioning rod is welded or clamped to the partition, the size of the positioning rod is smaller than the internal clearance size of the telescopic part, the cross-sectional shape of the positioning rod is the same as the internal shape of the telescopic part, the positioning rod is a cylindrical structure positioning rod, the length of the positioning rod is larger than the size of the telescopic part in the maximum extension state, the lateral size of the positioning rod is smaller than the cross-sectional size of the third hollow groove, the unfixed end of the positioning rod when the telescopic part is in the maximum extension state is located in the third hollow groove, and the distance between the unfixed end of the positioning rod and the end of the third hollow groove when the telescopic part is in the maximum shortening state is greater than 0.

[0010] Among them, openings are symmetrically arranged on both sides of the first hollow groove perpendicular to the axis of the first clamping rod, the internal size of the first hollow groove is larger than the opening size on both sides, the first hollow groove is the first hollow groove of the cylindrical structure, the first hollow groove is the first hollow groove of the cylindrical structure, the second hollow groove is the second hollow groove of the cylindrical structure, and the third hollow groove is the third hollow groove of the cylindrical structure.

[0011] Among them, the partition is a cylindrical partition or a rectangular partition, the size of the partition is smaller than the internal size of the first hollow groove and the internal size of the second hollow groove, the shape of the partition is the same as the internal cross-sectional shape of the first hollow groove and the second hollow groove, the partition is welded or clamped to the limit member, the size of the telescopic member is smaller than the size of the partition, and the size of the telescopic member is larger than the cross-sectional size of the third hollow groove.

[0012] Wherein, it also includes a limiting bolt arranged outside the first connecting screw for limiting the first connecting screw and limiting the separation of the second clamping rod, and the limiting bolt is a limiting pin or a limiting bolt.

[0013] Among them, it also includes a limiter arranged in the first hollow groove for limiting the lateral movement of the second connecting screw. The size of the limiter is smaller than the internal size of the first hollow groove and larger than the opening size on both sides of the first hollow groove. The limiter is installed at the other end of the first connecting screw. The limiter is coaxially docked, clamped or welded with the first connecting screw, and the limiter is coaxially docked, clamped or welded with the second connecting screw.

[0014] Among them, it also includes a bottom groove arranged in the bottom of the first clamp rod or the second clamp rod where the bottom supporting member is not arranged and facing the bottom supporting member, the bottom groove is an inverted L-shaped notch groove or a rectangular groove, the bottom supporting member is welded to the first clamp rod or the second clamp rod, and the bottom supporting member is an L-shaped bottom supporting member with a wedge-shaped mouth.

[0015] Wherein, it also includes a first handle arranged on the top of the first clamping rod and a second handle arranged on the top of the second clamping rod.

[0016] In which, the first clamping rod is provided with a first limiting piece, and the second clamping rod is installed with a first connecting piece. The first connecting piece and the second clamping rod are hinged with a first anti-detachment bolt, and the first anti-detachment bolt is fixedly connected to the second clamping rod. The first connecting piece is provided with a first groove matching the first limiting piece, and the first limiting piece is set in the first groove to limit the relative position of the first clamping rod and the second clamping rod, and the second clamping rod is provided with a second limiting piece, and the second limiting piece is set in the first groove to achieve displacement of the first connecting piece relative to the second clamping rod.

[0017] Compared with the prior art, the clamp provided by the embodiment of the present invention has the following advantages:

[0018] The clamp provided by the embodiment of the present invention connects the middle part of the first clamping rod and the second clamping rod, and realizes the movement of the bottom supporting member relative to the bottom of the second clamping rod by controlling the angle at the top, thereby clamping or releasing the clamped object. During the clamping process, since a first hollow groove is provided in the first clamping rod, and a telescopic member is provided in the first hollow groove, the first hollow groove is located at the upper part or the lower part of the first connecting screw. The second connecting screw slides in the first hollow groove, so that the first clamping rod realizes the up and down movement of the bottom supporting member through the telescopic operation of the telescopic member, thereby realizing automatic extension during the object clamping process. This change will reduce the angle between the bottom supporting structure of the clamp and the bearing surface of the object, reduce the lifting height of the object during the clamping process, realize clamping in a limited space, greatly reduce the height of the object lifted when the clamp is clamped, effectively solve the problem of rapid clamping in a limited space, improve work efficiency, minimize the disturbance to the object, and help to keep the object structure relatively stable. At the same time, the use of the bottom supporting member can realize the clamping of objects of any shape, thereby improving its adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A front structural schematic diagram of an embodiment of the clamp provided by the present invention;

[0021] Figure 2 A left side structural schematic diagram of an embodiment of the clamp provided by the present invention;

[0022] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure in;

[0023] Among them, 101-first clamping rod, 102-second clamping rod, 103-first connecting screw, 104-limiting bolt, 105-bottom supporting member, 106-second connecting screw, 107-first hollow groove, 108-second hollow groove, 109-third hollow groove, 201-limiting member, 202-partition, 203-telescopic member, 204-positioning rod, 301-first handle, 302-second handle, 4-clamped object, 5-obstacle, first limiting member 113, first anti-detachment bolt 110, second limiting member 112, first connecting member 111. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Please refer to Figure 1-Figure 3 , Figure 1 A front structural schematic diagram of an embodiment of the clamp provided by the present invention; Figure 2 A left side structural schematic diagram of an embodiment of the clamp provided by the present invention; Figure 3 for Figure 2 Schematic diagram of the local enlarged structure in.

[0026] In a specific embodiment, the clamp includes a first clamping rod 101 and a second clamping rod 102. The middle part of the first clamping rod 101 is connected to the middle part of the first clamping rod 101 through a rotating structure. The bottom of the first clamping rod 101 or the second clamping rod 102 is provided with a bottom supporting member 105 for supporting the clamped object 4. The first clamping rod 101 is connected to the rotating structure through a first connecting screw 103, and the second clamping rod 102 is connected to the rotating structure through a second connecting screw 106. The first clamping rod 101 is provided with a first hollow groove. A telescopic member 203 is provided in the first hollow groove, and the first hollow groove is located at the upper part or the lower part of the first connecting screw 103, so that the first clamping rod 101 realizes the up and down movement of the bottom supporting member 105 through the telescopic operation of the telescopic member 203, and the second connecting screw 106 slides in the first hollow groove, and the first clamping rod 101 and the second clamping rod 102 control the movement of the bottom supporting member 105 relative to the bottom of the second clamping rod 102 by opening and closing the top, thereby clamping or releasing the clamped object 4.

[0027] By connecting the middle of the first clamping rod 101 and the second clamping rod 102, the bottom supporting member 105 is moved relative to the bottom of the second clamping rod 102 by controlling the angle of the top, so as to clamp or release the clamped object 4. During the clamping process, since the first clamping rod 101 is provided with a first hollow groove, a telescopic member 203 is provided in the first hollow groove, and the first hollow groove is located at the upper part or the lower part of the first connecting screw 103, the second connecting screw 106 slides in the first hollow groove, so that the first clamping rod 101 is operated by the telescopic movement of the telescopic member 203. The bottom supporting member 105 can be moved up and down so as to automatically extend during the object clamping process. This change will reduce the angle between the bottom supporting structure of the clamp and the bearing surface of the object, reduce the lifting height of the object during the clamping process, achieve clamping in a limited space, and greatly reduce the height of the object lifted when the clamp is clamped. This effectively solves the problem of rapid clamping in a limited space, improves work efficiency, minimizes disturbance to the object, and is conducive to maintaining the relative stability of the object structure. At the same time, the use of the bottom supporting member 105 can achieve clamping of objects of any shape, thereby improving its adaptability.

[0028] In order to further facilitate the installation and reliable use of the telescopic member 203, in one embodiment, the clamp also includes a second hollow groove 108 arranged inside the first clamping rod 101, the cross-section of the second hollow groove 108 is the same as the cross-section shape and size of the first hollow groove 107, and a third hollow groove 109 is provided at one end of the second hollow groove 108, the cross-sectional size of the third hollow groove 109 is smaller than the cross-sectional size of the second hollow groove 108, and the axial length of the third hollow groove 109 is greater than the maximum telescopic amount of the telescopic member 203, the telescopic member 203 is arranged in the second hollow groove 108, and a positioning rod 204 for positioning the telescopic member 203 is arranged in the second hollow groove 108, and a partition connected to the telescopic member 203 is arranged in the first hollow groove, and a limiting member for limiting the partition is provided on the side of the partition away from the telescopic member 203.

[0029] By setting a second hollow groove 108 inside the first clamping rod 101, the telescopic member 203 is set in the second hollow groove 108, and the positioning rod 204 is set in the third hollow groove 109. By designing different sizes of the three hollow grooves, limiting and fixing different components are achieved, with a simple structure and simple installation.

[0030] In the present application, there is no limitation on the size and shape of the first hollow groove 107 , the second hollow groove 108 and the third hollow groove 109 , the material and size of the related telescopic member 203 , and the size of the partition and the limit member.

[0031] In order to ensure the reliability of use and ensure that during use, no matter what state the telescopic member 203 is in, the positioning rod 204 is always located in the third hollow groove 109 and will not slide out. In one embodiment, the positioning rod 204 and the telescopic member 203 are installed on the same side of the partition, the positioning rod 204 is welded or clamped to the partition, the size of the positioning rod 204 is smaller than the internal clearance size of the telescopic member 203, the cross-sectional shape of the positioning rod 204 is the same as the internal shape of the telescopic member 203, the positioning rod 204 is a cylindrical structure positioning rod 204, the length of the positioning rod 204 is greater than the maximum elongation state size of the telescopic member 203, the lateral size of the positioning rod 204 is smaller than the cross-sectional size of the third hollow groove 109, the unfixed end of the positioning rod 204 is located in the third hollow groove 109 when the telescopic member 203 is in the maximum elongation state, and the distance between the unfixed end of the positioning rod 204 and the end of the third hollow groove 109 is greater than 0 when the telescopic member 203 is in the maximum shortening state.

[0032] The length of the positioning rod 204 is determined by the values ​​of the maximum extension state and the maximum compression state of the telescopic member 203 to ensure the reliability of operation.

[0033] It should be noted that the positioning rod 204 in the present application can be along Figure 3 The movable end of the compression member 203 moves up and down in the direction of the arrow shown, with one end fixed to the partition and the other end moving with the movement of the telescopic member 203, but the movable end is always located in the third hollow channel 109, thereby ensuring the positioning of the compression member 203.

[0034] In the present application, there is no limitation on the sizes of the first hollow groove, the second hollow groove, and the third hollow groove. In order to facilitate installation and unified design, in one embodiment, openings are symmetrically arranged on both sides of the first hollow groove perpendicular to the axial direction of the first clamping rod 101, and the internal size of the first hollow groove is larger than the size of the openings on both sides. The first hollow groove is a first hollow groove with a cylindrical structure, the first hollow groove 107 is a first hollow groove 107 with a cylindrical structure, the second hollow groove 108 is a second hollow groove 108 with a cylindrical structure, and the third hollow groove 109 is a third hollow groove 109 with a cylindrical structure.

[0035] By designing the three hollow channels as cylindrical structures, the size of the corresponding clamping rod is ensured, while ensuring the overall structural strength. The openings are symmetrically arranged on both sides of the first hollow channel perpendicular to the axis of the first clamping rod 101, which is convenient for the installation of the compression member. After the installation is completed, it can be fixed by baffles and other components to fix it in a certain space. The internal size of the first hollow channel is larger than the size of the openings on both sides, which is convenient for the fixing and installation of the partition, and also provides a certain space for the possible lateral displacement of the telescopic member 203 during telescoping, ensuring its reliability in use.

[0036] In the present application, there is no limitation on the difference between the inner dimension of the first hollow channel and the dimension of the openings on both sides.

[0037] The present application does not limit the material, shape, installation method, etc. of the partition. The partition is a cylindrical partition or a rectangular partition. The size of the partition is smaller than the internal size of the first hollow groove and the internal size of the second hollow groove. The shape of the partition is the same as the internal cross-sectional shape of the first hollow groove and the second hollow groove. The partition is welded or clamped to the limiting member. The size of the telescopic member 203 is smaller than the size of the partition, and the size of the telescopic member 203 is larger than the cross-sectional size of the third hollow groove.

[0038] The present application does not limit the material of the partition, nor does it limit the method of connecting the partition with the limiting member. By providing a telescopic member 203 on one side of the partition and a limiting member on the other side, the protection of the partition is ensured and the efficiency of its installation is improved.

[0039] In addition to the above-mentioned methods, the partition may be placed in a limiting groove to limit the partition through the limiting groove, or may be limited through other structures.

[0040] In addition to limiting the internal structure, it is also necessary to limit the first connecting screw 103, the second connecting screw 103 and other components. In one embodiment, the clamp also includes a limiting bolt 104 set on the outside of the first connecting screw 103 for limiting the separation of the first connecting screw 103 and the second clamping rod 102. The limiting bolt 104 is a limiting pin or a limiting bolt.

[0041] By arranging a limit bolt 104 outside the first connecting bolt, the first connecting screw rod 103 and the second clamping rod 102 are restricted from being disengaged, so that they form an integral structure, thereby improving the reliability of use.

[0042] The present application does not limit the structure and limiting method of the limiting bolt 104, including but not limited to a limiting pin or a limiting bolt.

[0043] Similarly, since the second connecting screw 106 will slide in the first hollow groove 107, in order to ensure that it is always in the first hollow groove 107, in one embodiment, the clamp also includes a limit member arranged in the first hollow groove 107 for limiting the lateral movement of the second connecting screw 106. The size of the limit member is smaller than the internal size of the first hollow groove, and larger than the opening size on both sides of the first hollow groove 107. The limit member is installed at the other end of the first connecting screw 103, and the limit member is coaxially docked, clamped or welded with the first connecting screw 103, and the limit member is coaxially docked, clamped or welded with the second connecting screw 106.

[0044] The second connecting screw 106 is limited by setting a limiter to ensure its operational reliability. There is no limitation on the connection method with other components, which can be an independent structure and then connected by welding or the like, or it can be an integral part, an integrated structure processed by cutting or the like.

[0045] In the present application, the first clamping rod 101 and the second clamping rod 102 can be directly connected by screws or by other structures, as long as it does not affect the use of the telescopic member 203, and the first clamping rod 101 and the second clamping rod 102 are not connected by bearings at the intersection, or are coaxially connected by the first connecting screw 103 and the second connecting screw 106.

[0046] That is, the two clamping rods can be connected by coaxially connecting the first connecting screw 103 and the second connecting screw 106, or they can be connected by bearings or other components to improve the reliability of the connection.

[0047] In order to further improve the clamping efficiency of objects and prevent them from falling during movement, in one embodiment, the clamp also includes a bottom groove arranged in the first clamp rod 101 or the second clamp rod 102 where the bottom supporting member 105 is not arranged and facing the bottom supporting member 105, and the bottom groove is an inverted L-shaped notch groove or a rectangular groove, and the bottom supporting member 105 is welded to the first clamp rod 101 or the second clamp rod 102, and the bottom supporting member 105 is an L-shaped bottom supporting member 105 with a wedge-shaped mouth.

[0048] By setting a bottom groove at the bottom of the clamp rod and facing the bottom supporting member 105, it can cooperate with the bottom supporting member 105 to complete the clamping of the object. During the clamping process, possible gaps are reduced, the possibility of the object falling is reduced, and the clamping efficiency is improved.

[0049] In the present application, there is no limitation on the connection method between the bottom supporting member 105 and the first clamping rod 101 or the second clamping rod 102 and the structure of the bottom supporting member 105 itself.

[0050] To further improve the convenience of operation, in one embodiment, the clamp further includes a first handle 301 disposed on the top of the first clamping rod 101 and a second handle 302 disposed on the top of the second clamping rod 102 .

[0051] By providing the first handle 301 and the second handle 302 , the friction force and the force bearing area during the operation are increased, thereby improving the efficiency of the operation.

[0052] The first handle 301 and the second handle 302 in the present application may also be integrally formed with the corresponding clamping rod, or may be independently installed, etc. The present application does not limit their structure and formation method, etc.

[0053] Since the angle between the first clamp rod and the second clamp rod is too large during use, which causes inconvenience in use, in order to solve this technical problem, in one embodiment, the first clamp rod 101 is provided with a first limiting member 113, and the second clamp rod 101 is installed with a first connecting member 111, and the first connecting member 111 and the second clamp rod 102 are hinged with a first anti-detachment bolt 110, and the first anti-detachment bolt 110 is fixedly connected to the second clamp rod 102, and the first connecting member 111 is provided with a first groove matching the first limiting member 113, and the first limiting member 113 is provided in the first groove to limit the relative position of the first clamp rod 101 and the second clamp rod 102, and the second clamp rod 102 is provided with a second limiting member 112, and the second limiting member 102 is provided in the first groove to achieve displacement of the first connecting member 111 relative to the second clamp rod 102.

[0054] By setting structures such as a limiter, a connector, and a groove, the relative position of the first clamping rod and the second clamping rod is limited. When the groove on the connector is stuck on the limiter, the relative movement of the first clamping rod 101 and the clamping rod 102 can be limited, thereby effectively protecting the internal components of the second clamping rod 102. When the clamp is used, the first connector 111 can be prevented from being displaced relative to the second clamping rod 102, which can protect the first connector 111 and reduce construction interference.

[0055] The present application does not limit the structure of the limiting member, including but not limited to the use of round rods and other structures.

[0056] In one embodiment, the clamp includes: a clamping assembly, a displacement assembly, a limiting assembly and a handle assembly.

[0057] The clamping assembly includes: a first clamping rod 101 , a second clamping rod 102 , a first connecting screw 103 , a limit bolt 104 , a bottom supporting member 105 , a second connecting screw 106 , a first hollow channel 107 , a second hollow channel 108 , and a third hollow channel 109 .

[0058] The first clamping rod 101 and the second clamping rod 102 are connected via a first connecting screw 103 and a second connecting screw 106 .

[0059] The first connecting screw rod 103 and the second connecting screw rod 106 are bolted with the same bolt and are processed by milling of the integral structure.

[0060] The inner end of the first connecting screw 103 is connected to the limiter and is integrally milled; the limiter is used to limit the left and right movement of the bolt, and can also be limited by setting a limit pin at the outer end of the second connecting screw 106.

[0061] The first connecting screw 103 and the second connecting screw 106 adopt a coaxial structure, and the first connecting screw 103, the second connecting screw 106 and the limiter are integrally milled from the same component.

[0062] The first clamping rod 101 adopts a hollow cylindrical structure to increase bending rigidity; the second connecting screw 106 adopts a cylindrical structure; the first clamping rod 101 is axially provided with a first hollow groove 107, and openings are symmetrically arranged on both sides of the first hollow groove 107 perpendicular to the axis of the first clamping rod 101; the internal size of the first hollow groove 107 is larger than the size of the openings on both sides; the first hollow groove 107 adopts a cylindrical structure; the second connecting screw 106 can slide in the first hollow groove 107.

[0063] A second hollow groove 108 is provided inside the first clamping rod 101; the second hollow groove 108 has the same cross-sectional size as the first hollow groove 107; the second hollow groove 108 adopts a cylindrical structure; a third hollow groove 109 is provided at one end of the second hollow groove 108; the cross-sectional size of the third hollow groove 109 is smaller than that of the second hollow groove 108; the third hollow groove 109 adopts a cylindrical structure; the axial length of the third hollow groove 109 is greater than the maximum telescopic amount of the telescopic member 203.

[0064] The first hollow groove 107 is used to limit the second connecting screw 106 to ensure that the first clamping rod 101 and the second clamping rod 102 can and can only move up and down relative to each other; the second hollow groove 108 is used to limit the telescopic member 203 to ensure that the telescopic member 203 always extends and retracts along the direction of the second hollow groove 108; the third hollow groove 109 is used to limit the positioning rod 204 to ensure that the positioning rod 204 is always located in the third hollow groove 109 and that the positioning rod 204 always moves along the direction of the third hollow groove 109.

[0065] The wedge-shaped opening of the bottom support member 105 can improve the efficiency of grasping the object, and more importantly, can provide sufficient grasping force (when the side of the object is relatively smooth, it can make up for the problem of insufficient clamping force). The stepped opening presses the object, and when the bottom support wedge-shaped opening enters the bottom of the object, the object tilts upward, with the bottom of the object as the fulcrum, which is equivalent to applying a rotating force couple to the top of the object, making it easier to clamp; the object is limited during the clamping process, which is convenient for clamping.

[0066] A bottom supporting member 105 is installed at the bottom of the first clamping rod 101 , and the bottom supporting member 105 is connected to the first clamping rod 101 by welding; the bottom supporting member 105 is an “L”-shaped structure with a wedge-shaped opening.

[0067] The second clamping rod 102 adopts a hollow cylindrical structure to increase the bending rigidity; the second clamping rod 102 is hinged to the first connecting screw 103, and the first connecting screw 103 is a cylindrical structure; the first connecting screw 103 and the second connecting screw 106 are coaxially connected; a limiting bolt 104 is installed at the outer end of the first connecting screw 103 to limit the second clamping rod 102 from disengaging from the first connecting screw 103, and the limiting bolt 104 is a pin.

[0068] A bottom groove is provided at the bottom of the second clamping rod 102, and the bottom groove is preferably an inverted "L"-shaped notch.

[0069] The displacement assembly includes: a limit member, a partition, a telescopic member 203 and a positioning rod 204 .

[0070] The limit member is installed in the first hollow groove 107, and the size of the limit member is smaller than the internal size of the first hollow groove 107; the size of the limit member is larger than the opening size on both sides of the first hollow groove 107; the limit member is installed at the other end of the first connecting screw 103; the limit member and the first connecting screw 103 are coaxially connected; the limit member and the first connecting screw 103 are welded, and the limit member and the second connecting screw 106 are coaxially connected; the limit member and the second connecting screw 106 are welded.

[0071] One axial end of the limiter is connected to a partition, and the size of the partition is slightly smaller than the internal size of the first hollow groove 107; the shape of the partition is consistent with the internal section of the first hollow groove 107; the size of the partition is slightly smaller than the internal size of the second hollow groove 108; the shape of the partition is consistent with the internal section of the second hollow groove 108; the partition is welded to the limiter and is installed directly above the limiter: the partition adopts a thin cylindrical structure.

[0072] The other end of the partition is connected to the telescopic member 203, which is smaller than the partition; the telescopic member 203 can be axially telescopic along the first clamping rod 101; the telescopic member 203 adopts a spring; the size of the telescopic member 203 is larger than the cross-sectional size of the third hollow channel 109.

[0073] A positioning rod 204 is installed at the center of the telescopic member 203, and the positioning rod 204 and the telescopic member 203 are installed on the same side of the partition; the positioning rod 204 is welded to the partition, and the size of the positioning rod 204 is slightly smaller than the internal clearance of the telescopic member 203; the cross-sectional shape of the positioning rod 204 is consistent with the internal shape of the telescopic member 203; the positioning rod 204 adopts a cylindrical structure; the length of the positioning rod 204 is greater than the maximum elongation state size of the telescopic member 203; the size of the positioning rod 204 is smaller than the cross-sectional size of the third hollow channel 109; the positioning rod 204 still extends into the third hollow channel 109 when the telescopic member 203 is in the maximum elongation state; the positioning rod 204 still does not conflict with the end of the first hollow channel 107 when the telescopic member 203 is in the maximum shortening state;

[0074] The handle assembly includes: a first handle 301 and a second handle 302 .

[0075] The first handle 301 is installed on the top of the first clamping rod 101 ; the second handle 302 is installed on the top of the second clamping rod 102 .

[0076] The limiting assembly includes a first limiting member 113 installed on the first clamping rod 101, the first limiting member 113 is a smooth round rod, and a round rod can be used; the first limiting member 113 is fixedly connected to the first clamping rod 101; a first connecting member 111 is installed on the second clamping rod, and the first connecting member 111 and the second clamping rod 102 are hinged by a first anti-detachment bolt 110; the first anti-detachment bolt 110 is fixedly connected to the second clamping rod 102; there is a first groove on the first connecting member 111; the first groove on the first connecting member 111 matches the first limiting member 113, and when the first groove on the first connecting member 111 is stuck on the first limiting member 113, the relative movement between the first clamping rod 101 and the second clamping rod 102 can be limited, thereby effectively protecting the internal components of the second clamping rod 102.

[0077] The second limiting member 112 is installed on the second clamping rod 102, and the second limiting member 112 is a smooth round rod; the second limiting member 112 is fixedly connected to the second clamping rod 102; a second groove structure matching the second limiting member 112 is provided on the second connecting member; when the clamp is in use, the displacement of the second connecting member relative to the second clamping rod can be avoided, the second connecting member can be protected, and construction interference can be reduced.

[0078] The above operation method is as follows:

[0079] Extend the clamp into the limited space until it is near the object to be clamped;

[0080] Open the clamp and press against the bottom of the object;

[0081] The clamp is combined, and the clamping rod with the displacement assembly automatically extends (this change reduces the angle between the support structure at the bottom of the clamp and the object bearing surface), completing the object clamping;

[0082] Adjust the posture of the fixture while clamping the object, and complete the object posture adjustment to enable it to meet the conditions for clamping in a limited space.

[0083] The object is clamped and removed from the obstacle 5.

[0084] The above fixture has the following advantages:

[0085] By setting a displacement component on one of the clamping rods, the clamping rod equipped with the displacement component can automatically extend when clamping an object. This change will reduce the angle between the bottom supporting structure of the clamp and the bearing surface of the object, reduce the lifting height of the object during the clamping process, and achieve clamping in a limited space. At the same time, it can minimize the disturbance to the object, which is conducive to maintaining the relative stability of the object structure.

[0086] Can clamp objects of any shape;

[0087] The object posture can be adjusted for better gripping.

[0088] In summary, the clamp provided in the embodiment of the present invention connects the middle part of the first clamping rod and the second clamping rod, and realizes the movement of the bottom supporting member relative to the bottom of the second clamping rod by controlling the angle at the top, so as to clamp or release the clamped object. During the clamping process, since the first clamping rod is provided with a first hollow groove, and a telescopic member is provided in the first hollow groove, the first hollow groove is located at the upper part or the lower part of the first connecting screw, and the second connecting screw slides in the first hollow groove, so that the first clamping rod realizes the bottom through the telescopic operation of the telescopic member. The up and down movement of the supporting member enables it to automatically extend during the clamping process of the object. This change will reduce the angle between the bottom supporting structure of the clamp and the bearing surface of the object, reduce the lifting height of the object during the clamping process, achieve clamping in a limited space, and greatly reduce the height of the object lifted when the clamp is clamped. This effectively solves the problem of rapid clamping in a limited space, improves work efficiency, and can minimize disturbance of the object, which is conducive to maintaining the relative stability of the object structure. At the same time, the use of the bottom supporting member can realize the clamping of objects of any shape, thereby improving its adaptability.

[0089] The above is a detailed introduction to the clamp provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A clamp, characterized in that: The clamping rod comprises a first clamping rod and a second clamping rod, wherein the middle portion of the first clamping rod is connected to the middle portion of the first clamping rod through a rotating structure, a bottom supporting member for supporting a clamped object is arranged at the bottom of the first clamping rod or the second clamping rod, the first clamping rod is connected to the rotating structure through a first connecting screw, and the second clamping rod is connected to the rotating structure through a second connecting screw, a first hollow groove is arranged in the first clamping rod, a telescopic member is arranged in the first hollow groove, the first hollow groove is located at the upper part or the lower part of the first connecting screw, the second connecting screw slides in the first hollow groove, so that the first clamping rod realizes the up and down movement of the bottom supporting member through the telescopic operation of the telescopic member, the first clamping rod and the second clamping rod control the movement of the bottom supporting member relative to the bottom of the second clamping rod through the opening and closing of the top, thereby clamping or releasing the clamped object.

2. The clamp according to claim 1, characterized in that: It also includes a second hollow groove arranged inside the first clamping rod, the cross-section of the second hollow groove is the same as the cross-section shape and equal to the cross-section size of the first hollow groove, a third hollow groove is provided at one end of the second hollow groove, the cross-section size of the third hollow groove is smaller than the cross-section size of the second hollow groove, the axial length of the third hollow groove is greater than the maximum telescopic amount of the telescopic member, the telescopic member is arranged in the second hollow groove, and a positioning rod for positioning the telescopic member is arranged in the second hollow groove, a partition connected to the telescopic member is arranged in the first hollow groove, and a limiting member for limiting the partition is provided on the side of the partition away from the telescopic member.

3. The clamp according to claim 2, characterized in that: The positioning rod and the telescopic member are installed on the same side of the partition, the positioning rod is welded or clamped to the partition, the size of the positioning rod is smaller than the internal clearance size of the telescopic member, the cross-sectional shape of the positioning rod is the same as the internal shape of the telescopic member, the positioning rod is a cylindrical structure positioning rod, the length of the positioning rod is larger than the size of the telescopic member in the maximum extension state, the lateral size of the positioning rod is smaller than the cross-sectional size of the third hollow groove, the unfixed end of the positioning rod when the telescopic member is in the maximum extension state is located in the third hollow groove, and the distance between the unfixed end of the positioning rod and the end of the third hollow groove when the telescopic member is in the maximum shortening state is greater than 0.

4. The clamp according to claim 3, characterized in that: Openings are symmetrically arranged on both sides of the first hollow groove perpendicular to the axis of the first clamping rod, the inner size of the first hollow groove is larger than the opening size on both sides, the first hollow groove is a first hollow groove with a cylindrical structure, the first hollow groove is a first hollow groove with a cylindrical structure, the second hollow groove is a second hollow groove with a cylindrical structure, and the third hollow groove is the third hollow groove with a cylindrical structure.

5. The clamp according to claim 4, characterized in that: The partition is a cylindrical partition or a rectangular partition, the size of the partition is smaller than the internal size of the first hollow groove and the internal size of the second hollow groove, the shape of the partition is the same as the internal cross-sectional shape of the first hollow groove and the second hollow groove, the partition is welded or clamped to the limiting member, the size of the telescopic member is smaller than the size of the partition, and the size of the telescopic member is larger than the cross-sectional size of the third hollow groove.

6. The clamp according to claim 1, characterized in that: It also includes a limiting bolt arranged outside the first connecting screw for limiting the first connecting screw and used to limit the separation of the first connecting screw and the second clamping rod. The limiting bolt is a limiting pin or a limiting bolt.

7. The clamp according to claim 1, characterized in that: It also includes a limiter arranged in the first hollow groove for limiting the lateral movement of the second connecting screw. The size of the limiter is smaller than the internal size of the first hollow groove and larger than the opening size on both sides of the first hollow groove. The limiter is installed at the other end of the first connecting screw. The limiter is coaxially docked, clamped or welded with the first connecting screw, and the limiter is coaxially docked, clamped or welded with the second connecting screw.

8. The clamp according to claim 1, characterized in that: It also includes a bottom groove arranged in the bottom of the first clamp rod or the second clamp rod where the bottom supporting member is not arranged and facing the bottom supporting member, the bottom groove is an inverted L-shaped notch groove or a rectangular groove, the bottom supporting member is welded to the first clamp rod or the second clamp rod, and the bottom supporting member is an L-shaped bottom supporting member with a wedge-shaped mouth.

9. The clamp according to claim 1, characterized in that: The invention also includes a first handle arranged on the top of the first clamping rod and a second handle arranged on the top of the second clamping rod.

10. The clamp according to any one of claims 1 to 9, characterized in that: The first clamping rod is provided with a first limiting piece, and the second clamping rod is installed with a first connecting piece. The first connecting piece and the second clamping rod are hinged with a first anti-detachment bolt, and the first anti-detachment bolt is fixedly connected to the second clamping rod. The first connecting piece is provided with a first groove matching the first limiting piece, and the first limiting piece is set in the first groove to limit the relative position of the first clamping rod and the second clamping rod. The second clamping rod is provided with a second limiting piece, and the second limiting piece is set in the first groove to achieve displacement of the first connecting piece relative to the second clamping rod.

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