CN215471691U

CN215471691U - Oblique fracture saw bracket with fastener type screw rod seat

Info

Publication number: CN215471691U
Application number: CN202023348060.2U
Authority: CN
Inventors: 盛希虎; 李宝
Original assignee: Jinhua Yahu Tools Co Ltd
Current assignee: Jinhua Yahu Tools Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-01-11
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a miter saw bracket with a buckle type screw rod seat, which comprises a bracket table board and a foot rod and is characterized in that the bracket table board is provided with the screw rod seat for fixing a miter saw; the lead screw seat comprises a lead screw seat main body, a clamping groove is formed in the lower portion of the lead screw seat main body, one end of the clamping groove is provided with an arc-shaped static clamping block, the other end of the clamping groove is rotatably hinged with an arc-shaped movable clamping block, one end, close to the movable clamping block, of the lead screw seat main body is an operating end, the operating end is provided with an adjusting and locking mechanism, and the adjusting and locking mechanism is characterized by comprising a rotary trigger, a linkage piece, a clamping piece, a positioning column, a clamping piece and a positioning column. The utility model has the buckle type screw rod seat, and the screw rod seat is based on an eccentric locking structure and combines with the double locking of the torsion spring and the buckle, so that the connection between the screw rod seat and the table top of the oblique saw bracket is firmer, and the safety and the stability are improved.

Description

Oblique fracture saw bracket with fastener type screw rod seat

Technical Field

The utility model belongs to the field of woodworking supports, and particularly relates to a miter saw support with a buckle type screw rod seat.

Background

The screw rod seat is usually matched with the oblique-cutting saw support for use, and the screw rod seat can fix the screw rod seat on the table top of the oblique-cutting saw support by utilizing the clamping groove on one hand, and can be fixed with the base of the oblique-cutting saw on the other hand, so that the oblique-cutting saw is integrally and stably fixed on the oblique-cutting saw support finally. The clamping and fixing of the screw rod seat and the oblique saw support are completed by the rotating operation of the handle, the end part of the handle is provided with an eccentric part, and the eccentric part is abutted against the clamping block through rotation and pushes the clamping block to clamp the table top of the oblique saw support. In the process of woodworking operation, if the handle is accidentally turned over by external acting force, the screw rod seat is very easy to loosen and fall off, even the oblique saw slips, and potential safety hazards exist. Therefore, the technical personnel of the unit modify the structures of the oblique fracture saw bracket and the screw rod seat so as to improve the stability.

Disclosure of Invention

The utility model mainly aims at the problem of the stability of the connection between a screw rod seat and the table top of a support, and provides a miter saw support with a buckle type screw rod seat.

The technical problem of the utility model is implemented by the following technical scheme: a miter saw support with a buckle-type screw rod seat comprises a support table board and a foot rod for supporting the support table board, and is characterized in that the screw rod seat for fixing a miter saw is arranged on the support table board; the screw rod seat comprises a screw rod seat main body, a clamping groove matched with the width and the cross-sectional shape of a table top of the oblique-cutting saw support is formed in the lower portion of the screw rod seat main body, an arc-shaped static clamping block is arranged at one end of the clamping groove, an arc-shaped dynamic clamping block is rotatably hinged to the other end of the clamping groove, one end, close to the dynamic clamping block, of the screw rod seat main body is an operating end, an adjusting and locking mechanism used for adjusting the clamping distance between the static clamping block and the dynamic clamping block is arranged at the operating end, and the adjusting and locking mechanism is characterized by comprising a rotary trigger hinged to the screw rod seat main body, a linkage piece hinged to the rotary trigger, extending towards the dynamic clamping block and capable of being abutted against the dynamic clamping block, a clamping piece with an inwards-concave clamping groove and a positioning column which is rotatably hinged to the rotary trigger and is provided with the screw rod seat main body and can be clamped and positioned with the clamping piece.

Preferably, the rotary trigger comprises an eccentric shaft sleeve with an eccentric shaft hole, a connecting part extending from the middle part of the outer side wall of the eccentric shaft sleeve in a fan-shaped outward expansion manner, and a circular arc-shaped handle piece connected to the outer side edge of the connecting part; the rotary trigger is rotatably hinged to the screw rod seat main body through the eccentric shaft hole and the eccentric rotating shaft crossing the eccentric shaft hole.

Preferably, one end of the linkage piece is arranged to be a hinged ring which can be sleeved on the eccentric shaft sleeve in a surrounding mode, and the end face of the other end, close to the dynamic clamping block, of the linkage piece is arranged to be an arc-shaped abutting face which can be attached to the arc-shaped outer side wall face of the dynamic clamping block.

Preferably, two ends of the eccentric sleeve of the rotary trigger are respectively and annularly sleeved with a linkage piece in a hinged mode, the main body of the linkage piece is a rectangular frame body, and the hinged ring is located on the outer side of the end portion of the rectangular frame body.

Preferably, the upper end of the buckling piece is hinged to the fan-shaped connecting portion of the rotary trigger through the buckling rotating shaft, the buckling rotating shaft is sleeved with the torsion spring, the lower portion of the buckling piece is bent and provided with a clamping groove which is concave relatively, and the clamping groove can be clamped and connected with the positioning column fixed on the screw rod seat main body.

Preferably, the lower plate surface of the handle piece of the rotary trigger is provided with an anti-slip area, and the surface of the anti-slip area is provided with a concave-convex anti-slip piece;

the section of the screw rod seat main body is U-shaped and comprises a top plate positioned on the top surface and side plates positioned on two sides and extending downwards relatively and vertically.

Preferably, the clamping groove is arranged in the middle of a side plate of the screw rod seat main body, the opening of the clamping groove faces downwards, and two ends of the clamping groove are arc-shaped; the upper end of the dynamic clamping block is hinged to the two side plates through a shaft; the static clamping block is arranged to be an arc-shaped plate and is fixed between the two side plates; the upper end of the static clamping block is hinged to the two side plates through a shaft, and a limiting mechanism is arranged on one side of the static clamping block, which is back to the clamping groove; the limiting mechanism comprises a fixing plate fixed between the two side plates, a threaded hole is formed in the middle of the fixing plate, a fastening screw rod is connected in the threaded hole, and the other end of the fastening screw rod is connected to the static clamping block; the adjusting and locking mechanism is positioned between two side plates of the screw rod seat main body, and the positioning column is vertically fixed between the two side plates of the screw rod seat main body; the top plate of the screw rod seat main body is provided with a fastening sliding groove, and a fastening piece for fixing the oblique fracture saw is arranged in the fastening sliding groove.

Preferably, the table top of the bracket comprises two parallel hollow long pipes and a short rod vertically connected between the two hollow long pipes; the end parts of the two long pipes and the two ends of the table surface of the support are connected with end cover assemblies; the end cover assembly comprises two closed end covers and a middle part connected between the two closed end covers, and the two closed end covers are respectively and correspondingly covered and sleeved at the end parts of the two long pipes.

Preferably, a foot bar supporting frame is respectively fixed below two ends of the supporting platform surface, and each foot bar supporting frame is rotatably hinged with two oppositely-forked foot bars.

Preferably, the lower end of one of the foot rods is connected with a fine adjustment mechanism, the fine adjustment mechanism comprises a section of stud and a hemispherical rotating piece fixed to the lower end of the stud, and the stud is in threaded connection with the lower end face of the foot rod; the lower ends of the other three foot rods are connected with foot rod pads, each foot rod pad comprises a flat pad and a section of half-open inclined sleeve pipe which extends upwards from the upper part of the flat pad in an inclined way, and the inclined sleeve pipe is sleeved at the lower end of each foot rod.

In summary, compared with the prior art, the utility model has the following advantages:

the table top is provided with the buckle type screw rod seat, the screw rod seat is based on an eccentric locking structure, and is combined with the torsional spring and the buckle for double locking, so that the screw rod seat is more firmly connected with the table top of the oblique saw bracket, and the safety and the stability are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the screw base of the present invention;

FIG. 3 is a schematic view of the screw base of the present invention when locked;

FIG. 4 is a cross-sectional view of the screw base of the present invention in a locked state;

FIG. 5 is a schematic view of the screw base of the present invention when unlocked;

fig. 6 is a sectional view showing an unlocked state of the screw base of the present invention.

The reference numbers in the figures are: 1. a support table-board; 2. a foot bar; 21. a stud; 22. a rotating member; 23. a flat plate pad; 24. tilting the sleeve; 4. a long tube; 42. a foot bar support frame; 5. a short bar; 6. an end cap assembly; 61. closing the end cap; 63. an intermediate portion;

9. a screw base; 91. a screw base body; 910. a clamping groove; 911. a top plate; 912. a side plate; 913. fastening the chute; 92. a static clamping block; 921. a limiting mechanism; 93. a dynamic clamping block; 94. rotating the trigger; 940. an eccentric shaft hole; 941. an eccentric shaft sleeve; 942. a connecting portion; 943. a handle member; 944. an anti-slip region; 945. an eccentric rotating shaft; 95. a linkage member; 951. a hinge ring; 952. an arc-shaped abutting surface; 96. a fastener; 960. a rotating shaft is buckled; 961. a card slot; 962. a torsion spring; 97 positioning post.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples.

Example 1:

as shown in fig. 1, 2, 3, 4, 5 and 6, the oblique fracture saw bracket with the buckle type screw rod seat comprises a bracket table surface 1 and a foot rod 2 for supporting the bracket table surface 1,

the support table-board 1 comprises two parallel hollow long pipes 4 and a short rod 5 vertically connected between the two hollow long pipes 4; the end parts of the two long pipes 4 at the two ends of the support table-board 1 are connected with end cover assemblies 6.

The end cap assembly 6 comprises two closed end caps 61 and a middle part 63 connected between the two closed end caps 61, and the closed end caps 61 are sleeved on the ends of the two long tubes 4 in a covering manner.

A foot bar supporting frame 42 is respectively fixed below the two ends of the support table-board 1, and each foot bar supporting frame 42 is rotatably hinged with two oppositely-forked foot bars 2; the outer side of the foot rod support frame 42 at one end is connected with a transverse wheel shaft 43, and two ends of the wheel shaft 43 are respectively connected with wheels 44; the outside of the foot bar support frame 42 at the other end is connected with a handle 45 which is convenient for pushing and pulling.

In four leg rods 2, the lower end of one leg rod 2 is connected with a fine adjustment mechanism, the fine adjustment mechanism comprises a section of stud 21 and a hemispherical rotating piece 22 fixed at the lower end of the stud 21, and the stud 21 is connected with the lower end surface of the leg rod in a threaded manner; the lower ends of the other three foot rods 2 are connected with foot rod pads, each foot rod pad comprises a flat pad 23 and a section of half-open inclined sleeve 24 which extends upwards from the upper part of the flat pad 23 in an inclined manner, and the inclined sleeve 24 is sleeved at the lower end of each foot rod 2.

The support table board 1 is provided with two parallel screw rod seats 9, as shown in fig. 2, 3, 4, 5 and 6, each screw rod seat 9 comprises a screw rod seat main body 91, the lower part of each screw rod seat main body 91 is provided with a clamping groove 910 matched with the width and the cross section shape of the oblique saw support table board, one end of each clamping groove 910 is fixed with an arc-shaped static clamping block 92, the other end of each clamping groove 910 is hinged with an arc-shaped dynamic clamping block 93 through a pin shaft in a rotating mode, one end, close to the dynamic clamping block 93, of each screw rod seat main body 91 is an operating end, and the operating end is provided with an adjusting and locking mechanism for adjusting the clamping distance between the static clamping block 92 and the dynamic clamping block 93.

The section of the screw rod seat main body 91 is U-shaped, and comprises a top plate 911 positioned on the top surface and side plates 912 positioned on two sides and extending downwards relatively vertically; the middle part of the side plate 912 of the screw rod seat main body 91 is provided with the clamping groove 910, the opening of the clamping groove 910 faces downwards, and two ends of the clamping groove 910 are arc-shaped; the upper end of the dynamic clamping block 93 is hinged to the two side plates 912 through a shaft; the static clamping block 92 is an arc-shaped plate, and the static clamping block 92 is fixed between the two side plates 912; the upper end of the static clamping block 92 is hinged to the two side plates 912 through a shaft, and a limiting mechanism 921 is arranged on one side of the static clamping block 92, which is back to the clamping groove 910; the limiting mechanism 921 includes a fixing plate fixed between the two side plates 912, a threaded hole is formed in the middle of the fixing plate, a fastening screw rod is connected in the threaded hole, and the other end of the fastening screw rod is connected to the static clamping block 92.

The screw rod seat main body 91 is provided with a fastening sliding chute 913 in a top plate 911 thereof, and a fastening piece for fixing the oblique fracture saw is arranged in the fastening sliding chute 913, and specifically, a stud nut or the like can be adopted.

The adjusting and locking mechanism is installed between the two side plates 912 of the lead screw seat main body 91.

The adjusting and locking mechanism comprises a rotating trigger 94 hinged to the lead screw seat main body, a linkage piece 95 hinged to the rotating trigger 94, extending towards the dynamic clamping block 93 and capable of abutting against the dynamic clamping block, a buckling piece 96 hinged to the rotating trigger 94 in a rotating mode and provided with a concave buckling groove 961, and a positioning column 97 fixed to the lead screw seat main body 91 and capable of forming buckling positioning with the buckling piece 96, wherein the positioning column 97 is vertically fixed between two side plates 912 of the lead screw seat main body 91.

The rotary trigger 94 comprises an eccentric shaft sleeve 941 with an eccentric shaft hole 940, a connecting part 942 extending from the middle of the outer side wall of the eccentric shaft sleeve 941 in a fan shape, and a circular arc-shaped handle part 943 connected to the outer side edge of the connecting part 942; the rotary trigger 94 is rotatably hinged to the screw base main body 91 through the eccentric shaft hole 940 and the eccentric rotation shaft 945 crossing the eccentric shaft hole 940.

One end of the link 95 is set to be capable of being sleeved on the hinge ring 951 on the eccentric shaft sleeve 941, and the end face of the other end of the link 95 close to the dynamic clamping block 93 is set to be an arc abutting surface 952 capable of being attached to the arc outer side wall surface of the dynamic clamping block 93.

The two ends of the eccentric shaft sleeve 941 of the rotary trigger 94 are respectively hinged to a linkage 95 through a ring sleeve, the main body of the linkage 95 is a rectangular frame, and the hinge 951 is located on the outer side of the end of the rectangular frame.

The upper end of the latch 96 is hinged to the fan-shaped connecting part 942 of the rotary trigger 94 through a latch rotating shaft 960, the torsion spring 962 is sleeved on the latch rotating shaft 960, the lower part of the latch 96 is bent and has a relatively concave slot 961, and the slot 961 can form a snap connection with a positioning column 97 fixed on the screw rod seat main body 91.

The handle member 943 of the rotary trigger 94 is provided with an anti-slip region 944 on the lower plate surface thereof, and the anti-slip region 944 has an uneven anti-slip member on the surface thereof.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A miter saw bracket with a buckle type screw rod seat comprises a bracket table board (1) and a foot rod (2) for supporting the bracket table board, and is characterized in that the bracket table board is provided with the screw rod seat for fixing a miter saw; the screw rod seat comprises a screw rod seat main body (91), the lower part of the screw rod seat main body is provided with a clamping groove (910) matched with the width and the section shape of the table top of the oblique saw bracket, one end of the clamping groove is provided with an arc-shaped static clamping block (92), the other end of the clamping groove is rotationally hinged with an arc-shaped dynamic clamping block (93), one end of the screw rod seat main body close to the dynamic clamping block is an operating end, the operating end is provided with an adjusting and locking mechanism for adjusting the clamping distance between the static clamping block and the dynamic clamping block, the adjusting and locking mechanism is characterized by comprising a rotary trigger (94) hinged to the lead screw seat main body, a linkage piece (95) hinged to the rotary trigger, extending towards the dynamic clamping block and capable of abutting against the dynamic clamping block, a buckling piece (96) with an inwards concave clamping groove (961) and rotatably hinged to the rotary trigger, and a positioning column (97) arranged on the lead screw seat main body and capable of being clamped and positioned with the buckling piece.

2. The miter saw frame with snap-fit screw base according to claim 1, wherein the rotary trigger includes a section of eccentric bushing (941) having an eccentric shaft hole (940), a connecting part (942) extending outward in a fan shape from the middle of the outer side wall of the eccentric bushing, and a handle part (943) in a circular arc shape connected to the outer side edge of the connecting part; the rotary trigger is rotatably hinged to the screw rod seat main body through the eccentric shaft hole and the eccentric rotating shaft crossing the eccentric shaft hole.

3. The miter saw bracket with a snap-fit screw base according to claim 2, wherein one end of the link member is configured as a hinge ring (951) that can be looped around the eccentric bushing, and the other end surface of the link member near the dynamic clamping block is configured as an arc abutting surface (952) that can be fitted to the arc outer wall surface of the dynamic clamping block.

4. The miter saw support with snap-fit screw base of claim 3, wherein the eccentric bushing of the rotary trigger has a link member at each of its two ends, the link member having a rectangular frame body, and the hinge ring is located at the outer side of the end of the rectangular frame body.

5. The miter saw bracket with snap-in screw base according to claim 4, wherein the upper end of said snap-in member is hinged to the fan-shaped connecting portion of the rotary trigger by a snap-in shaft (960) and the snap-in shaft is sleeved with a torsion spring (962), and the lower portion of the snap-in member is bent and has a relatively concave catching groove capable of forming a snap-in connection with the positioning post fixed to the main body of said screw base.

6. The miter saw bracket with snap-fit screw base of claim 5, wherein the lower plate surface of the handle member of said rotary trigger is provided with an anti-slip region (944) having an uneven anti-slip member on the surface;

the section of the lead screw seat main body is U-shaped, and the lead screw seat main body comprises a top plate (911) positioned on the top surface and side plates (912) positioned on two sides and extending downwards vertically relatively.

7. The miter saw bracket with a snap-fastener type screw base according to claim 5, wherein the clamping groove is formed in the middle of a side plate of the screw base main body, the opening of the clamping groove faces downward, and two ends of the clamping groove are arc-shaped; the upper end of the dynamic clamping block is hinged to the two side plates through a shaft; the static clamping block is arranged to be an arc-shaped plate and is fixed between the two side plates; the upper end of the static clamping block is hinged to the two side plates through a shaft, and one side of the static clamping block, which is back to the clamping groove, is provided with a limiting mechanism (921); the limiting mechanism comprises a fixing plate fixed between the two side plates, a threaded hole is formed in the middle of the fixing plate, a fastening screw rod is connected in the threaded hole, and the other end of the fastening screw rod is connected to the static clamping block; the adjusting and locking mechanism is positioned between two side plates of the screw rod seat main body, and the positioning column is vertically fixed between the two side plates of the screw rod seat main body; the top plate of the screw rod seat main body is provided with a fastening sliding groove (913), and a fastening piece (914) used for fixing the oblique fracture saw is arranged in the fastening sliding groove.

8. The miter saw support with snap-in screw base according to claim 7, wherein the support table comprises two parallel long hollow tubes (4), a short rod (5) vertically connected between the two long hollow tubes; the end parts of the two long pipes at the two ends of the table surface of the support are connected with end cover assemblies (6); the end cover assembly comprises two closed end covers (61) and a middle part (63) connected between the two closed end covers, and the two closed end covers are respectively and correspondingly covered and sleeved at the end parts of the two long pipes.

9. The miter saw support with snap-fit screw base of claim 8, wherein a foot bar support (42) is fixed under each end of the table top of the support, and each foot bar support is pivotally connected to two oppositely diverging foot bars.

10. The miter saw bracket with snap-fit screw base of claim 9, wherein a lower end of a foot bar is connected to a fine adjustment mechanism, the fine adjustment mechanism comprising a length of a stud (21) and a hemispherical rotary member (22) fixed to a lower end of the stud, the stud being threadedly connected to a lower end surface of the foot bar; the lower ends of the other three foot rods are connected with foot rod pads, each foot rod pad comprises a flat pad (23) and a section of half-open inclined sleeve (24) which extends upwards from the upper part of the flat pad in an inclined way, and the inclined sleeve is sleeved at the lower end of each foot rod.