Special inner support for woodworking table dog hole

Abstract

The utility model relates to the technical field of woodworking tools, in particular to an inner support special for a woodworking table dog hole. The device comprises a supporting piece, a pressing piece and an expansion piece. The pressing piece is arranged on the supporting piece in a threaded fit mode. The expansion piece is arranged on the supporting piece and located between the supporting piece and the pressing piece. According to the inner support special for the woodworking table dog hole, the expansion piece can generate radial expansion through screwing-in of the threads between the pressing piece and the supporting piece so as to form radial tensioning force, and the expansion piece can elastically recover through screwing-out of the threads so as to facilitate disassembly of the inner support; therefore, the operation is convenient, the mounting and dismounting efficiency is high, and the dog hole of the workbench cannot be damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of woodworking tools, in particular to a special inner support for a woodworking workbench dog hole. BACKGROUND

[0002] The woodworking workbench dog hole refers to a hole distributed on the edge or a specific area of the workbench to meet the installation and fixing requirements of different positions.

[0003] In the prior art, woodworking is generally performed by temporarily making a dog hole support, which has problems of precision and efficiency. The woodworking dog hole inner support provided by the present application is a special component arranged in the dog hole to assist the woodworking in installation, fixing, positioning or guiding. CONTENT OF THE UTILITY MODEL

[0004] The innovative concept of the present application is to use a material with a certain elasticity as an expansion piece, to generate elastic deformation of the expansion piece by applying axial extrusion force, and to form a tightness force for pressing the inner wall of the dog hole, and to generate axial extrusion force through the thread cooperation between the two component parts arranged on the two sides of the axial direction of the expansion piece.

[0005] The solution provided by the present application to solve the technical problem is:

[0006] A special inner support for a woodworking workbench dog hole, comprising a support piece, a pressing piece and an expansion piece; the pressing piece is arranged on the support piece through thread cooperation; the expansion piece is arranged on the support piece and located between the support piece and the pressing piece; the pressing piece can press the expansion piece and make the diameter of the expansion piece larger through rotational movement.

[0007] As a preferred embodiment, the support piece comprises a support part and a connecting rod; a screw part is arranged on the connecting rod; a pressing part and a pressing thread hole are arranged on the pressing piece; the pressing piece is arranged on the connecting rod through cooperation of the pressing thread hole and the screw part; the expansion piece has a circular ring structure; the expansion piece is sleeved on the connecting rod, and the circular ring of the expansion piece is located between the support part and the pressing part.

[0008] The screw-in pressing piece can generate radial tightness force by continuously extruding the expansion piece, so as to fasten the inner support in the dog hole; the screw-out pressing piece can release the expansion piece to make the expansion piece elastically recover, so as to facilitate taking out the inner support from the dog hole.

[0009] As a preferred embodiment, an external thread hole is further arranged on the connecting rod; the external thread hole is used to cooperate with an external component to form an auxiliary mechanism required for woodworking. For example, when a feeding support is needed, the support can be fixed to the workbench through the external thread hole.

[0010] As preferred, the pressing member comprises a pressing ring and a driving core; the pressing part is arranged on the pressing ring, and the pressing threaded hole is arranged on the driving core; the shaft core groove is arranged on the pressing ring, and the shaft core hole is arranged on the groove bottom of the shaft core groove; the driving edge and the driving shaft are arranged on the driving core, and the pressing threaded hole is arranged on the driving shaft; the driving shaft is arranged in and accommodated in the shaft core groove, and the driving edge is matched with the shaft core groove.

[0011] The pressing member can adopt an integrated structure or a split structure. The pressing member in the split structure is combined by the pressing ring and the driving core. The rotation of the driving core can make the expansion member radially expand under the pressure of the driving edge on the groove bottom of the shaft core groove, and the rotation of the driving core can loosen the expansion member to make the expansion member elastically recover.

[0012] As preferred, the inner support special for the dog hole of the woodworking workbench further comprises a first intermediate piece; the first intermediate ring and the first shaft hole are arranged on the first intermediate piece; the first intermediate piece is sleeved on the connecting rod through the first shaft hole; the expansion member is arranged between the first intermediate ring and the support part, and between the first intermediate ring and the pressing part.

[0013] As preferred, the inner support special for the dog hole of the woodworking workbench further comprises a second intermediate piece; the second intermediate ring and the second shaft hole are arranged on the second intermediate piece; the second intermediate piece is sleeved on the connecting rod through the second shaft hole; the expansion member is arranged between the second intermediate ring and the first intermediate ring, and between the second intermediate ring and the pressing part.

[0014] The number of intermediate pieces and expansion members can be flexibly configured according to the depth of the dog hole on the workbench. For a commonly used woodworking workbench, the embodiment comprising two intermediate pieces and three expansion members can meet the common application requirements. The three expansion members respectively form the tightening force from the upper, middle and lower parts of the dog hole, which helps to prevent the upper or lower part from being fixed insecurely.

[0015] As preferred, the inner support special for the dog hole of the woodworking workbench further comprises a screw knob; the screw knob comprises a knob part and a threaded rod; the threaded rod is arranged in the external threaded hole.

[0016] As preferred, the inner support special for the dog hole of the woodworking workbench further comprises a structure column; the structure column is sleeved on the threaded rod and located between the knob part and the pressing member.

[0017] Beneficial technical effects:

[0018] The inner support special for the dog hole of the woodworking workbench provided by the application can make the expansion member radially expand to form the radial tightening force through the threaded rotation between the pressing member and the support member, and can make the expansion member elastically recover through the threaded rotation to facilitate the disassembly of the inner support; thus, the operation is convenient, the installation and disassembly efficiency is high, and the workbench dog hole is not damaged.

[0019] The technical solutions and technical effects of the present application are described in detail below in combination with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 : Special inner support structure diagram of dog hole of woodworking workbench;

[0021] Figure 2 : Special inner support structure exploded view of dog hole of woodworking workbench;

[0022] Figure 3 : Special inner support structure exploded view of dog hole of woodworking workbench;

[0023] Figure 4 : Special inner support structure diagram of dog hole of woodworking workbench;

[0024] Figure 5 : Special inner support structure diagram of dog hole of woodworking workbench;

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1- support, 2- compression, 3- expansion, 4- first intermediate, 5- second intermediate, 6- screw knob, 7- structure column;

[0027] 11- support, 12- connecting rod; 121- screw part, 122- external thread hole;

[0028] 21- compression, 22- compression thread hole, compression ring 23, 24- drive core;

[0029] 231- shaft core groove, 232- shaft core hole;

[0030] 241- drive edge, 242- drive shaft;

[0031] 41- first intermediate ring, 42- first shaft hole;

[0032] 51- second intermediate ring, 52- first shaft hole;

[0033] 61- knob part, 62- threaded rod. DETAILED DESCRIPTION

[0034] Please refer to Figures 1-2 , the present application discloses a special inner support for dog hole of woodworking workbench, including support 1, compression 2, expansion 3, first intermediate 4, second intermediate 5.

[0035] Support 1 includes support 11, connecting rod 12; support 11 is used to generate extrusion force, connecting rod 12 is used to set expansion 3, first intermediate 4 and second intermediate 5.

[0036] The connecting rod 12 is provided with a threaded rod portion 121 and an external threaded hole 122. The threaded rod portion 121 is used to connect the pressing member 2 through threaded cooperation, and the external threaded hole 122 is used to connect external components such as a feeding support, a woodworking positioning component, or a woodworking guide component.

[0037] The pressing member 2 is provided with a pressing portion 21 and a pressing threaded hole 22. The pressing portion 21 is used to generate axial extrusion force in cooperation with the support portion 11, and the pressing threaded hole 22 is used to connect the threaded rod portion 121 on the support member 1 through threaded cooperation.

[0038] The expansion member 3 has a circular ring structure. The expansion member 3 is sleeved on the connecting rod 12, and the circular ring body of the expansion member 3 is located between the support portion 11 and the pressing portion 21, so that the support portion 11 and the pressing portion 21 can generate expansion deformation when being extruded.

[0039] The first intermediate member 4 is provided with a first intermediate ring 41 and a first shaft hole 42. The first intermediate member 4 is sleeved on the connecting rod 12 through the first shaft hole 42. The first intermediate ring 41 is used to generate axial extrusion force in cooperation with the pressing portion 21 and the support portion 11.

[0040] The second intermediate member 5 is provided with a second intermediate ring 51 and a second shaft hole 52. The second intermediate member 5 is sleeved on the connecting rod 12 through the second shaft hole 52. The second intermediate ring 51 is used to generate axial extrusion force in cooperation with the pressing portion 21, the support portion 11, and the first intermediate ring 41.

[0041] Assembly relationship: the first intermediate member 4 and the second intermediate member 5 are sequentially arranged on the support member 1, and the pressing member 2 is connected to the threaded rod portion 121 of the support member 1 through threaded cooperation. The expansion member 3 is arranged between the pressing member 2 and the second intermediate member 5, between the second intermediate member 5 and the first intermediate member 4, and between the first intermediate member 4 and the support portion 11 of the support member 1.

[0042] Principle and effect: when the pressing member 2 is screwed in, the axial distance between the pressing portion 21 and the support portion 11 becomes smaller. The three expansion members 3 all generate expansion deformation due to axial extrusion force, thereby forming radial tension force to firmly fix the inner support in the dog hole. When the pressing member 2 is unscrewed, the axial distance between the pressing portion 21 and the support portion 11 becomes larger, and the three expansion members 3 all become smaller in diameter through elastic recovery, so that the inner support can be conveniently taken out of the dog hole. Not only is the installation and disassembly efficient and convenient to use, but also the installation process mainly causes elastic contact between the expansion member 3 and the inner wall of the dog hole, thereby avoiding damage to the workbench dog hole.

[0043] The above embodiment adopts the configuration of two intermediate pieces plus three expansion pieces. In actual implementation, the number of intermediate pieces and expansion pieces can be flexibly configured according to the depth of the dog hole of the woodworking workbench. When the dog hole is not deep, the intermediate piece can be omitted, and the fixing and dismounting of the inner support can be realized through the cooperation between the pressing part 21 on the pressing piece 2 and the supporting part 11 on the supporting piece 1. In the implementation without the intermediate piece, the inner support special for the dog hole of the woodworking workbench disclosed in the present application only includes the supporting piece 1, the pressing piece 2 and one expansion piece 3. The expansion piece 3 is arranged on the connecting rod 12 of the supporting piece 1 and is pressed by the pressing piece 2. The mounting and dismounting of the inner support can also be realized by screwing in and out the pressing piece 2.

[0044] The pressing piece 2 can adopt an integrated structure or a split structure. Please refer to Figure 3 The pressing piece 2 in the split structure is composed of a pressing ring 23 and a driving core 24. The pressing part 21 is arranged on the pressing ring 23, and the pressing threaded hole 22 is arranged on the driving core 24. The pressing ring 23 is provided with an axis core groove 231, and the axis core hole 232 is arranged on the groove bottom of the axis core groove 231. The driving core 24 is provided with a driving edge 241 and a driving shaft 242, and the pressing threaded hole 22 is arranged on the driving shaft 242. The driving shaft 242 penetrates and is accommodated in the axis core groove 231, and the driving edge 241 cooperates with the axis core groove 231.

[0045] Screwing in the driving core 24 can make the expansion piece 3 radially expand through the pressure of the groove bottom of the axis core groove 231, and unscrewing the driving core 24 can loosen the expansion piece 3 to make the expansion piece elastically recover.

[0046] The dog hole inner support provided in the present application is used to be fixed in the dog hole of the workbench and then assist the woodworker to complete the corresponding work through external components. Please refer to Figure 4 and Figure 5 . Figure 4 The outer threaded hole 122 of the dog hole inner support in the above embodiment is provided with a screw knob 6. The screw knob 6 includes a knob part 61 and a threaded rod 62, and the threaded rod 62 is connected to the outer threaded hole 122. Figure 5 The outer threaded hole 122 of the dog hole inner support in the above embodiment is provided with a screw knob 6 and a structure column 7. The structure column 7 is sleeved on the threaded rod 62 and located between the knob part 61 and the pressing piece 2. The screw knob 6 and the structure column 7 can be used for guiding and positioning of woodworking operations or connection or support of other external components. In some variant embodiments, a feeding support or other external components can also be installed on the outer threaded hole 122 of the dog hole inner support.

[0047] The technical solutions and technical effects of the present application are described in detail above in combination with the accompanying drawings and specific embodiments, and it should be noted that other embodiments can be developed by those skilled in the art on the basis of the present application; any simple transformation and equivalent replacement without departing from the innovative concept of the present application are covered by the present application and belong to the protection scope of the present patent.

Claims

1. A wood working table dog hole special inner support, characterized in that: it comprises a support piece (1), a pressing piece (2), and an expansion piece (3); the pressing piece (2) is arranged on the support piece (1) through threaded cooperation; the expansion piece (3) is arranged on the support piece (1) and located between the support piece (1) and the pressing piece (2); and the pressing piece (2) can press the expansion piece (3) and make the diameter of the expansion piece (3) larger through rotating movement.

2. The wood working table dog hole special inner support according to claim 1, characterized in that: the support piece (1) comprises a support part (11) and a connecting rod (12), and a screw rod part (121) is arranged on the connecting rod (12); the pressing piece (2) is provided with a pressing part (21) and a pressing threaded hole (22); the pressing piece (2) is arranged on the connecting rod (12) through cooperation of the pressing threaded hole (22) and the screw rod part (121); the expansion piece (3) has a circular ring structure; and the expansion piece (3) is sleeved on the connecting rod (12), and the circular ring body of the expansion piece (3) is located between the support part (11) and the pressing part (21).

3. The wood working table dog hole special inner support according to claim 2, characterized in that: the pressing piece (2) comprises a pressing ring (23) and a driving core (24); the pressing part (21) is arranged on the pressing ring (23), and the pressing threaded hole (22) is arranged on the driving core (24); the pressing ring (23) is provided with an axis core groove (231), and an axis core hole (232) is arranged on the groove bottom of the axis core groove (231); the driving core (24) is provided with a driving edge (241) and a driving shaft (242), and the pressing threaded hole (22) is arranged on the driving shaft (242); the driving shaft (242) penetrates and is accommodated in the axis core groove (231), and the driving edge (241) cooperates with the axis core groove (231).

4. The wood working table dog hole special inner support according to claim 2, characterized in that: the wood working table dog hole special inner support further comprises a first intermediate piece (4); the first intermediate piece (4) is provided with a first intermediate ring (41) and a first shaft hole (42); the first intermediate piece (4) is sleeved on the connecting rod (12) through the first shaft hole (42); and the expansion piece (3) is arranged between the first intermediate ring (41) and the support part (11) and between the first intermediate ring (41) and the pressing part (21).

5. The wood working table dog hole special inner support according to claim 4, characterized in that: the wood working table dog hole special inner support further comprises a second intermediate piece (5); the second intermediate piece (5) is provided with a second intermediate ring (51) and a second shaft hole (52); the second intermediate piece (5) is sleeved on the connecting rod (12) through the second shaft hole (52). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The expansion piece (3) is arranged between the second intermediate ring (51) and the first intermediate ring (41), and between the second intermediate ring (51) and the compression part (21).

6. The inner support of the dog hole of the woodworking bench according to claim 2, characterized in that: The connecting rod (12) is further provided with an external threaded hole (122).

7. The inner support of the dog hole of the woodworking bench according to claim 6, characterized in that: The inner support of the dog hole of the woodworking bench further comprises a screw knob (6); The screw knob (6) comprises a knob part (61) and a threaded rod (62); The threaded rod (62) is arranged in the external threaded hole (122).

8. The inner support of the dog hole of the woodworking bench according to claim 7, characterized in that: The inner support of the dog hole of the woodworking bench further comprises a structural column (7); The structural column (7) is sleeved on the threaded rod (62) and located between the knob part (61) and the compression part (2).

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