Clamp connector and clamp device thereof

By combining the housing and locking components, the problems of complex structure and easy spring fatigue in existing woodworking clamp connectors are solved, enabling the clamping of thicker workpieces and achieving rapid stabilization and expansion of the clamp connector, thus meeting the needs of clamping thicker workpieces.

CN223643874UActive Publication Date: 2025-12-09EHOMA INDAL CORP
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Patent Information

Application Number
CN202423104761.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-12-09
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing woodworking clamp connectors have complex structures and springs that are prone to fatigue, resulting in decreased clamping force and increasing the risk of the rod detaching from the connector, making it difficult to stably clamp thick workpieces.

Method used

The fixture body and the extension rod are connected by two housings and fixed by locking components, forming a simple and stable fixture connector structure that extends the distance between the clamping parts to accommodate thick workpieces.

Benefits of technology

It enables rapid assembly and positioning of the clamp connector, with a simple structure and stable locking, effectively clamping thicker objects and preventing a reduction in clamping force.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a clamp connector, which is used for connecting a clamp body and an extension rod, and comprises a first shell, a second shell and two locking components, the first shell is provided with a first end and a second end which are spaced along the direction of a longitudinal axis, an open placing space is arranged between the first end and the second end, and the placing space is provided with a locking part adjacent to each of the first end and the second end; the second shell can be arranged on the first shell in a covering manner and covers the placing space; the locking components are rotationally arranged between the first shell and the second shell in a penetrating mode in the direction of the transverse axis and locked to the two locking parts. Therefore, the clamp device can be quickly mounted between the clamp body and the extension rod, so that the clamp device can clamp thicker objects due to larger span.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting device, in particular to a clamp connector for a clamp device to extend the distance between two clamping parts of the clamp device. BACKGROUND

[0002] For example, US patent No. US11642760B2 discloses a woodworking clamp connector. The two ends of the connector are provided with clamping parts to form a set of woodworking clamps. The distance between the two clamping parts is extended by the connector, so that the woodworking clamps are suitable for workpieces with a relatively large thickness.

[0003] The aforementioned connector mainly includes a housing, a button, a rod-insertion pipe, a clamping member, and a spring. The rod-insertion pipe, the clamping member, and the spring are arranged in the housing. The clamping member is U-shaped and upward to accommodate the rod-insertion pipe. The spring is arranged between the lower part of the clamping member and the housing. The rod-insertion pipe is a flat tube with rod-insertion pipe openings at both ends. The rod-insertion pipe openings form a guide pin groove inward. The two ends of the clamping member are clamping hooks with upward groove openings and are located below the button. The clamping hooks can swing or reset with the operation of the button. When the rod of the clamping part is inserted into the rod-insertion pipe, the groove opening cooperates with the guide pin groove to clamp the positioning pin of the rod to achieve fixation. If fixation needs to be released, the button needs to be pressed to allow the rod-insertion pipe and the clamping member to be separated from the clamping state of the positioning pin, so that the rod can be pulled out of the housing.

[0004] However, the internal structure of the housing disclosed in the aforementioned patent is relatively complex. Once the spring is fatigued during use, the clamping force of the clamping member on the positioning pin of the rod will decrease, thereby increasing the risk of the rod being separated from the connector. Therefore, there is a need for improvement. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the utility model provides a clamp connector. Two housings are combined and connected between the clamp body and the extension rod, and two locking members are used to lock and fix the two housings to achieve quick assembly and positioning. The clamp connector has the advantages of simple structure and stable locking. In addition, the clamp connector can also maintain the existing clamping force of the clamp.

[0006] In one embodiment of this utility model, a clamp connector is provided for use with a clamping device. The clamp connector includes a first housing, a second housing, and two locking members. The first housing has a first end and a second end spaced apart along a longitudinal axis. An open placement space is provided between the first end and the second end. A locking part is provided adjacent to the first end and the second end in the placement space. The two locking parts are arranged along a transverse axis perpendicular to the longitudinal axis. The second housing can cover the first housing and cover the placement space. The two locking members are respectively rotatably inserted between the first housing and the second housing along the transverse axis and assembled at the two locking parts.

[0007] Furthermore, the first housing has an inner side surface and an opposing open surface. A side wall is respectively connected to both sides of the inner side surface, and the inner side surface and the two side walls form the placement space. The two locking parts protrude from the inner side surface and extend toward the open surface.

[0008] Furthermore, each of the two locking parts has a screw hole, the second housing has two through holes, and each of the two locking components has a threaded part and a knob part away from the threaded part. Each threaded part passes through each through hole and is screwed into each screw hole.

[0009] Furthermore, the first housing and the second housing have U-shaped cross-sections, and the second housing has two spaced-apart sidewalls. The distance between the two sidewalls is greater than the distance between the two sidewalls, so that the second housing can cover the outside of the first housing.

[0010] Furthermore, a stop is provided between the two locking parts. When the clamping device includes a clamping body and an extension rod, and the clamping body and the extension rod are respectively disposed in the placement space and connected to the two locking parts, the clamping body and the extension rod are limited by the stop and the two side wall stops.

[0011] Furthermore, the stop includes two protrusions that extend from the inner side toward the open surface, and the second housing has two positioning holes that are connected to the two protrusions.

[0012] Another embodiment of the present invention provides a clamping device, which includes a clamping connector, a clamping body, an extension rod, a sliding member, and a clamping member. The clamp connector includes a first housing, a second housing, and two locking members. The first housing has a first end and a second end spaced apart along a longitudinal axis on one side. A placement space is provided between the first and second ends. A locking part is provided adjacent to each of the first and second ends in the placement space. The two locking parts are arranged along a transverse axis perpendicular to the longitudinal axis. The clamp body has a rod portion and a first clamping portion. The rod portion has a first locking hole and is located in the placement space, with the first locking hole connected to one of the locking parts. One end of an extension rod has a second locking hole and is located in the placement space, with the second locking hole connected to the other locking part. One end of a sliding member slides on the extension rod. A clamping member is located at the other end of the sliding member and has a second clamping portion. The second housing can cover the first housing and cover the placement space. The two locking members are rotatably inserted between the first and second housings along the transverse axis and assembled at the two locking parts, connecting the clamp connector between the clamp body and the extension rod.

[0013] Furthermore, the first housing has an inner side surface and an opposing open surface. A side wall is connected to both sides of the inner side surface, and the inner side surface and the two side walls form the placement space. The two locking parts protrude from the inner side surface and extend toward the open surface.

[0014] Furthermore, each of the two locking parts has a screw hole, the second housing has two through holes, and each of the two locking components has a threaded part and a knob part away from the threaded part. Each threaded part passes through each through hole and is screwed into each screw hole.

[0015] Furthermore, the first housing and the second housing have U-shaped cross-sections, and the second housing has two spaced-apart sidewalls. The distance between the two sidewalls is greater than the distance between the two sidewalls, so that the second housing covers the outside of the first housing.

[0016] Furthermore, a stop is provided between the two locking parts, the rod abuts against one side of the stop, the extension rod abuts against the other side of the stop, and the clamp body and the extension rod are limited by the stop and the two side wall stops.

[0017] Furthermore, the stop portion includes two protrusions extending from the inner side towards the open surface. The second housing has two positioning holes, which are connected to the two protrusions. The clamp body is L-shaped, and the clamping member includes a screw screwed onto the sliding member. One end of the screw has the second clamping portion, and the other end of the screw has a handle.

[0018] Therefore, this utility model uses a first housing and a second housing connected together between the clamp body and the extension rod, and locks the first housing and the second housing together with two locking components to achieve rapid positioning. It has the effects of simple structure and stable locking. In addition, since the extension rod is connected to the clamp body through the clamp connector, the distance between the first clamping part and the second clamping part can be extended, so that the span of the clamping device is larger, which can meet the needs of clamping thicker objects. Attached Figure Description

[0019] Figure 1 External view of the clamp connector of this utility model;

[0020] Figure 2 Exploded view of the fixture connector structure of this utility model;

[0021] Figure 3 A diagram showing the clamp connector of this utility model in use illustrates that the clamp connector is connected between the clamp body and the extension rod.

[0022] Figure 4 Another usage diagram of the clamp connector of this utility model shows that the clamp connector locks and fixes the clamp body and the extension rod together;

[0023] Figure 5 along Figure 4 The cross-sectional view taken from section line 5-5;

[0024] Figure 6 along Figure 4 The cross-sectional view taken from section line 6-6.

[0025] Explanation of reference numerals in the attached figures

[0026] 100: Fixture connector;

[0027] 200: Fixture device;

[0028] 210: Fixture body;

[0029] 211: Rod section;

[0030] 212: First clamping part;

[0031] 213: First locking hole;

[0032] 220: Extension rod;

[0033] 221: Second locking hole;

[0034] 230: Sliding component;

[0035] 240: Clamping component;

[0036] 241: Screw;

[0037] 242: Second clamping part;

[0038] 243: Handle;

[0039] 10: First shell;

[0040] 11: First end;

[0041] 12: Second end;

[0042] 13: Placement space;

[0043] 14: Locking unit;

[0044] 141: Screw hole;

[0045] 15: Inner side;

[0046] 16: Open surface;

[0047] 17: Side wall;

[0048] 18: Stop section;

[0049] 181: Convex column;

[0050] 20: Second shell;

[0051] 21: Side wall;

[0052] 22: Perforation;

[0053] 23: Positioning hole;

[0054] 30: Locking components;

[0055] 31: Threaded section;

[0056] 32: Knob section;

[0057] X: Longitudinal axis;

[0058] Y: Horizontal axis. Detailed Implementation

[0059] The exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is not intended to limit the technical principles of the present invention to the specific disclosed embodiments, but rather the scope of the present invention is limited only by the scope of the claims, covering substitutions, modifications, and equivalents. Furthermore, for the purpose of understanding and reading by those skilled in the art, the structural dimensions and sizes of the various components presented in the drawings are shown in a schematic manner and are not intended to limit the implementation conditions of the present invention.

[0060] Please see Figures 1 to 6 As shown, this utility model provides a clamp connector 100 and its clamping device 200. (As indicated...) Figure 3 andFigure 4 The clamping device 200 includes a clamping body 210, an extension rod 220, a sliding member 230 disposed on the extension rod 220, and a clamping member 240 disposed on the sliding member 230. A clamping connector 100 is used to connect the clamping device 200 for clamping thicker objects. The clamping connector 100 includes a first housing 10, a second housing 20, and two locking members 30.

[0061] The first housing 10 is elongated with a U-shaped cross-section. The first housing 10 has a first end 11 and a second end 12 spaced apart along a longitudinal axis X, with an open placement space 13 between the first end 11 and the second end 12. The placement space 13 has a locking part 14 adjacent to both the first end 11 and the second end 12, and the two locking parts 14 are arranged along a transverse axis Y perpendicular to the longitudinal axis X.

[0062] In this embodiment of the present invention, the first housing 10 has an inner side surface 15 and an opposing open surface 16. A side wall 17 is respectively connected to both sides of the inner side surface 15, forming the placement space 13. Two locking portions 14 protrude from the inner side surface 15 and extend towards the open surface 16. Furthermore, each of the two locking portions 14 has a screw hole 141.

[0063] The second housing 20 is capable of covering the first housing 10 and concealing the placement space 13. The shape of the second housing 20 is similar to that of the first housing 10, and the cross-section of the second housing 20 is U-shaped. The second housing 20 has spaced side walls 21, the distance between which is greater than the distance between the side walls 17 of the first housing 10, so that the second housing 20 can cover the outside of the first housing 10. In addition, the second housing 20 has two through holes 22.

[0064] The locking components 30 are respectively rotatably inserted between the first housing 10 and the second housing 20 along the transverse axis Y, and locked within the two locking portions 14. Therefore, the first housing 10 and the second housing 20 are mutually connected and fixed. In this embodiment of the invention, each locking component 30 is provided with a threaded portion 31 and a knob portion 32 away from the threaded portion 31. The knob portion 32 facilitates operation by the user's hand, allowing the threaded portion 31 to pass through the through hole 22 and be screwed into the screw hole 141 of the corresponding locking portion 14, thereby connecting and fixing the first housing 10 and the second housing 20.

[0065] In this embodiment of the invention, a stop portion 18 is provided between the two locking portions 14. Specifically, the stop portion 18 consists of two protrusions 181 extending from the inner side surface 15 toward the open surface 16. In some embodiments, the two protrusions 181 are arranged in parallel, and each protrusion 181 is also parallel to each locking portion 14 (e.g., Figure 5Additionally, the second housing 20 has two positioning holes 23 between the two through holes 22, so that the second housing 20 covers the first housing 10, and each positioning hole 23 is connected to each protrusion 181. Figure 1 and Figure 2 As shown, when assembled, each protrusion 181 can protrude from each positioning hole 23 to provide a preliminary positioning effect for the first housing 10 and the second housing 20, which is beneficial for the subsequent locking component 30 to lock and fix the first housing 10 and the second housing 20.

[0066] The clamp body 210 is L-shaped. The clamp body 210 has a rod portion 211 and a first clamping portion 212. The rod portion 211 has a first locking hole 213 away from the first clamping portion 212. The rod portion 211 is disposed in the placement space 13, such that the first locking hole 213 is connected to one of the locking portions 14, and the rod portion 211 abuts against one side of the protrusion 181 of the stop portion 18.

[0067] The extension rod 220 has a second locking hole 221 at one end. The extension rod 220 is disposed in the placement space 13, with the second locking hole 221 connected to another locking part 14. The extension rod 220 abuts against one side of another protrusion 181 of the stop part 18. Therefore, the clamp body 210 and the extension rod 220 can be limited by the stop part 18 and the side walls 17, providing a positioning range for the clamp body 210 and the extension rod 220, and also preventing rotation and twisting. Since the clamp connector 100 is coupled between the clamp body 210 and the extension rod 220 and forms a rigid body, it prevents twisting during clamping operations and avoids a reduction in clamping force.

[0068] The sliding member 230 is slidably mounted on the extension rod 220 at one end.

[0069] A clamping member 240 is disposed at the other end of the sliding member 230. The clamping member 240 includes a screw 241 screwed onto the sliding member 230. One end of the screw 241 has a second clamping part 242, and the other end of the screw 241 has a handle 243. The handle 243 controls the screw 241 to reciprocate relative to the sliding member 230, so as to adjust the distance between the first clamping part 212 and the second clamping part 242, thereby achieving the purpose of clamping the object.

[0070] like Figures 2 to 4As shown, in use, the clamp body 210 is first placed at one end of the placement space 13, so that the first locking hole 213 is fitted into one of the locking parts 14. Then, the extension rod 220 is placed at the other end of the placement space 13, so that the second locking hole 221 is fitted into the other locking part 14. Next, the two locking members 30 are inserted through the through holes 22 of the second housing 20 and locked into the screw holes 141 of the locking parts 14 of the first housing 10, so that the clamp connector 100 is connected between the clamp body 210 and the extension rod 220.

[0071] In this way, the present invention can extend the distance between the first clamping part 212 and the second clamping part 242, thereby achieving the purpose of clamping thicker objects and meeting the needs of work.

[0072] The clamp connector 100 of this utility model has a simple structure, is quite stable after locking, and can be quickly installed and connected between the clamp body 210 and the extension rod 220, making it very convenient to use.

[0073] The embodiments described above are merely illustrative of the present invention and are not intended to limit the scope of the present invention. All modifications or variations made without departing from the spirit of the present invention are within the scope of protection intended by the present invention.

Claims

1. A clamp connector for use with a clamping device, characterized in that, The clamp connector includes: A first housing has a first end and a second end spaced apart along a longitudinal axis. An open placement space is provided between the first end and the second end. A locking part is provided adjacent to the first end and the second end in the placement space. The two locking parts are arranged along a transverse axis perpendicular to the longitudinal axis. A second housing, disposed on the first housing, and covering the placement space; and Two locking components are respectively rotatably inserted between the first housing and the second housing along the direction of the transverse axis, and locked in the two locking parts.

2. The clamp connector as described in claim 1, characterized in that, The first housing has an inner side and an opposite open side. A side wall is respectively connected to both sides of the inner side, and the inner side and the two side walls form the placement space. The two locking parts protrude from the inner side and extend toward the open side.

3. The clamp connector as described in claim 2, characterized in that, Each of the two locking parts has a screw hole, the second housing has two through holes, and each of the two locking components has a threaded part and a knob part away from the threaded part. Each threaded part passes through each through hole and is screwed into each screw hole.

4. The clamp connector as described in claim 2, characterized in that, The first housing and the second housing have U-shaped cross-sections. The second housing has two spaced-apart sidewalls, and the distance between the two sidewalls is greater than the distance between the two sidewalls, so that the second housing can cover the outside of the first housing.

5. The clamp connector as described in claim 2, characterized in that, There is a stop between the two locking parts. When the clamping device includes a clamping body and an extension rod, and the clamping body and the extension rod are respectively disposed in the placement space and connected to the two locking parts, the clamping body and the extension rod are limited by the stop and the two side wall stops.

6. The clamp connector as described in claim 5, characterized in that, The stop includes two protrusions that extend from the inner side toward the open surface. The second housing has two positioning holes that are connected to the two protrusions.

7. A clamping device, characterized in that, include: A clamp connector includes a first housing, a second housing, and two locking members. The first housing has a first end and a second end spaced apart along a longitudinal axis on one side. A placement space is provided between the first end and the second end. A locking part is provided adjacent to the first end and the second end in the placement space. The two locking parts are arranged along a transverse axis perpendicular to the longitudinal axis. A clamp body has a rod portion and a first clamping portion. The rod portion has a first locking hole. The rod portion is disposed in the placement space such that the first locking hole is connected to one of the locking portions. An extension rod has a second locking hole at one end. The extension rod is disposed in the placement space such that the second locking hole is connected to another locking part. A sliding member, one end of which is slidably mounted on the extension rod; and A clamping member is provided at the other end of the sliding member and has a second clamping portion; The second housing covers the first housing and shields the placement space. The two locking members are respectively rotated and inserted between the first housing and the second housing along the direction of the transverse axis, and locked in the two locking parts, so that the clamp connector is connected between the clamp body and the extension rod.

8. The clamping device as described in claim 7, characterized in that, The first housing has an inner side and an opposite open side. A side wall is connected to both sides of the inner side, and the inner side and the two side walls form the placement space. The two locking parts protrude from the inner side and extend toward the open side.

9. The clamping device as described in claim 8, characterized in that, Each of the two locking parts has a screw hole, the second housing has two through holes, and each of the two locking components has a threaded part and a knob part away from the threaded part. Each threaded part passes through each through hole and is screwed into each screw hole.

10. The clamping device as claimed in claim 8, characterized in that, The first housing and the second housing have U-shaped cross sections. The second housing has two spaced-apart sidewalls, and the distance between the two sidewalls is greater than the distance between the two sidewalls, so that the second housing covers the outside of the first housing.

11. The clamping device as claimed in claim 8, characterized in that, There is a stop between the two locking parts, the rod abuts against one side of the stop, the extension rod abuts against the other side of the stop, and the clamp body and the extension rod are limited by the stop and the two side wall stops.

12. The clamping device as claimed in claim 11, characterized in that, The stop portion includes two protrusions that extend from the inner side towards the open surface. The second housing has two positioning holes that are connected to the two protrusions. The clamp body is L-shaped. The clamping member includes a screw that is screwed onto the sliding member. One end of the screw has the second clamping portion, and the other end of the screw has a handle.

Citation Information

Patent Citations

  • Woodworking clamp having connector

    US11642760B2