TWI863167B - Adjustable pry bar - Google Patents

Abstract

The present invention is an adjustable crowbar, which is provided with a sleeve, an adjustment group and an extension rod. The adjustment group is combined with the sleeve and is provided with a body, a pressing piece, a locking piece and a return piece. The body is combined with the sleeve and is provided with a limiting through slot. The extension rod is clamped and combined with the adjustment group and extends into the sleeve. The extension rod is provided with an insertion end, a working end and at least two positioning slots. The at least two positioning slots are spaced on the outer surface of the extension rod and between the insertion end and the working end. The locking piece is selectively clamped and combined with one of the positioning slots through the limiting through slot, so that the extension rod is fixed on the sleeve, thereby providing an adjustable crowbar with a simple structure and convenient force application and adjustment.

Description

Adjustable pry bar

The present invention relates to a crowbar, in particular to an adjustable crowbar with a simple structure and convenient force application and adjustment.

The existing crowbar is mainly used by the user to separate two combined objects or remove nails from objects. The existing crowbar is a metal rod, with a bent working portion at one end of the rod and a gripping portion for the user to hold at the other end. After the user holds the gripping portion, the user can use the working portion to separate the two combined objects or remove the nails from the object. However, although the existing crowbar can provide the effect of separating two combined objects or removing nails, the existing The length of the pry bar is a fixed value. Therefore, when the distance between the two bonded objects to be separated or the nail to be removed and the user exceeds the length of the existing pry bar, the user cannot use the existing pry bar and needs to purchase or use a pry bar of other sizes. This not only increases the cost of using the pry bar, but also cannot be adjusted according to the actual situation, which relatively limits the practicality of the existing pry bar. In summary, the existing pry bar still needs to be improved.

Therefore, in view of the defects and shortcomings of the existing crowbars in actual operation, the present invention has finally developed an invention that can improve the existing defects after continuous testing and research. The adjustable crowbar of the present invention can be conveniently adjusted according to the needs of the user through a simplified structural setting method, effectively improving the practicality of the crowbar, thereby providing an adjustable crowbar with a simplified structure, convenient force application and adjustment.

Based on the above purpose, the present invention provides an adjustable crowbar, which includes: a sleeve, the sleeve is provided with a penetration end, a coupling end and a receiving groove, the penetration end and the coupling end are respectively provided at the two ends of the sleeve, the receiving groove is provided in the interior of the sleeve and communicates with the penetration end and the coupling end; an adjustment group, the adjustment group is combined with the sleeve and is provided with a body, a pressing piece, a clamping piece and a return piece, the body is combined with the coupling end of the sleeve and is provided with a limiting through groove, the limiting through groove is communicated with the receiving groove, the pressing piece is swingably provided on the outer surface of the body, the clamping piece is clamped and combined with the pressing piece, and the clamping piece can be extended into or out of the body after the pressing piece is swung relative to the body. Leaving the limiting slot of the body, the return member is arranged between the body and the pressing member; and an extension rod, the extension rod is clamped and combined with the adjustment group and extends into the sleeve, the extension rod is provided with an insertion end, a working end and at least two positioning slots, the insertion end and the working end are respectively located at the two ends of the extension rod, the insertion end extends into the receiving groove through the limiting slot and the combining end, the working end is located outside the sleeve and has a pry head, the at least two positioning slots are spaced and arranged on the outer surface of the extension rod and between the insertion end and the working end, the clamping member is selectively clamped and combined with one of the positioning slots through the limiting slot, so that the extension rod is fixed on the sleeve.

Furthermore, as in the above-mentioned adjustable pry bar, the pressing member is provided with a pivot part, a clamping end and a pressing end, the pivot part is provided at the middle section of the pressing member and is pivotally combined with the main body, the clamping end and the pressing end are provided at two ends of the pressing member respectively, so that the pressing member uses the pivot part as a fulcrum, so that the clamping end and the pressing end can be moved away from or close to the main body, and the return member is against the pressing end of the pressing member.

Furthermore, as in the adjustable pry bar described above, the pressing member is provided with a locking groove at the locking end, and the hinge portion is provided with two hinge ears spaced apart and facing each other, and the pressing member is provided with a hinge rod combined with the body and located between the two hinge ears, so that the pressing member can be stably positioned on the outer surface of the body.

Preferably, the adjustable pry bar as described above, wherein the engaging member is provided with a engaging end and a limiting end, the engaging end and the limiting end are respectively located at two ends of the engaging member, the engaging end is engaged with the engaging groove of the pressing member, and the limiting end extends into the limiting through groove of the body.

Preferably, the adjustable pry bar as described above has a mounting seat protruding from the outer surface of the body, the mounting seat has a mounting groove, a hinge, a through hole and a coupling groove, the mounting groove is recessed in the mounting seat, the hinge passes through the two outer sides of the mounting seat transversely and communicates with the mounting groove, the hinge rod passes through the hinge and the two hinge ears, so that the pressing member is located in the mounting groove of the mounting seat, the through hole radially passes through the mounting seat and the body and communicates with the limiting through groove, the limiting end of the engaging member extends into the limiting through groove through the through hole, the coupling groove is recessed in the mounting seat and communicates with the mounting groove, and the return member is disposed in the coupling groove through the mounting groove.

Preferably, the adjustable pry bar as described above, wherein the extension rod has a polygonal cross-section, and the limiting slot has an inner ring edge that matches the cross-sectional shape of the extension rod, so that the extension rod moves along the limiting slot without rotating.

Preferably, the adjustable pry bar as described above is provided with an enlarged gripping portion near the coupling end, so that the inner diameter of the sleeve at the coupling end is larger than the inner diameter of the sleeve at the penetration end.

Preferably, the adjustable pry bar as described above, wherein the body is axially provided with a coupling tube extending into the receiving groove, and the coupling tube is fixedly coupled with the coupling end of the sleeve, so as to fix the body at the coupling end of the sleeve.

Preferably, in the adjustable pry bar as described above, each positioning slot is transversely recessed in one of the outer end faces of the extension rod polygon and extends to the two outer end faces adjacent to the outer end face.

By virtue of the above technical features, when the adjustable crowbar of the present invention is used, it is only necessary to hold the gripping portion with one hand and press the pressing end of the pressing member, and then the hinge portion can be used as a fulcrum to move the clamping end away from the main body, thereby driving the clamping member to move radially outward relative to the main body and the extension rod, so that the clamping member is disengaged from the clamping positioning slot. At this time, the extension rod can move axially relative to the sleeve and the main body, so as to adjust the overall length of the adjustable crowbar of the present invention by the length of the extension rod extending out of the sleeve, so that the adjustable crowbar of the present invention can be adjusted according to the user's preference. The invention can meet the needs of separation or removal of two bonded parts or nails at different distances or positions. It is no longer necessary to purchase or carry multiple sets of pry bars of different sizes, which can relatively reduce the cost required for use, and can be adjusted according to the actual situation, greatly improving the practicality of the adjustable pry bar of the invention. The limiting slot can provide a limiting effect for the extension rod, which can avoid the situation where the engaging member cannot engage with one of the positioning slots after moving relative to the main body and the extension rod, thereby effectively providing an adjustable pry bar with a simple structure, convenient force application and adjustment.

10: Casing

11: Penetration end

12: Binding end

13: Storage slot

14: Grip

20: Adjustment group

21: Body

211: Limiting slot

212: Binding tube

22: Pressing parts

221:Archive Department

222: Card setting end

223: Press the end

224: Card slot

225: Ear

226:Arbor Pole

23: snap-fit parts

231: snap-fit end

232: Limit end

24: Reply

25: Mounting seat

251:Mounting slot

252: hinge

253:Through hole

254: Binding slot

30: Extension rod

31: Insertion end

32: Working end

33: Positioning slot

34: Pry head

Figure 1 is a three-dimensional appearance diagram of the adjustable pry bar of the present invention.

Figure 2 is a partially enlarged three-dimensional cross-sectional view of the adjustable pry bar of the present invention.

Figure 3 is a partially enlarged three-dimensional exploded view of the adjustable pry bar of the present invention.

Figure 4 is a partially enlarged side cross-sectional view of the adjustable pry bar of the present invention.

Figure 5 is a side cross-sectional view of the adjustable pry bar of the present invention along the A-A cutting line of Figure 4.

Figure 6 is a partially enlarged side view of the adjustable pry bar of the present invention during operation.

Figure 7 is a three-dimensional schematic diagram of the adjustable crowbar of the present invention when it is adjusted and used.

Figure 8 is another three-dimensional schematic diagram of the adjustable crowbar of the present invention when it is adjusted and used.

In order to understand the technical features and practical effects of the present invention in detail and to implement them according to the contents of the manual, a preferred embodiment as shown in the drawings is further described in detail as follows: Please refer to Figures 1 to 4, the adjustable pry bar of the present invention is provided with a sleeve 10, an adjustment group 20 and an extension rod 30, wherein: the sleeve 10 is a hollow pipe and has a through end 11, a connecting end 12 and a The receiving groove 13, the penetration end 11 and the coupling end 12 are respectively arranged at the two ends of the sleeve 10, the receiving groove 13 is arranged inside the sleeve 10 and communicates with the penetration end 11 and the coupling end 12, and further, the sleeve 10 is provided with an enlarged gripping portion 14 near the coupling end 12, so that the inner diameter of the sleeve 10 at the coupling end 12 is larger than the inner diameter of the sleeve 10 at the penetration end 11.

The adjusting assembly 20 is combined with the sleeve 10 and is provided with a body 21, a pressing member 22, a locking member 23 and a restoring member 24. The body 21 is cylindrical and is fixedly combined with the coupling end 12 of the sleeve 10. The body 21 is axially penetrated with a limiting groove 211, and the limiting groove 211 is communicated with the receiving groove 13 through the coupling end 12; preferably, the body 21 is axially provided with a The coupling tube 212 is provided with a groove 13, and the coupling tube 212 is fixedly coupled with the coupling end 12 of the sleeve 10, so as to fix the body 21 at the coupling end 12 of the sleeve 10; the pressing member 22 is swingably provided on the outer surface of the body 21 and is provided with a pivoting portion 221, a clamping end 222 and a pressing end 223, the pivoting portion 221 is provided at the middle section of the pressing member 22 and is pivotally coupled with the body 21 , so that the two ends of the pressing member 22 can swing relative to the body 21 and move closer or farther away, the clamping end 222 and the pressing end 223 are respectively arranged at the two ends of the pressing member 22, so that the pressing member 22 uses the pivot 221 as a fulcrum, so that the clamping end 222 and the pressing end 223 can move away from or closer to the body 21 like a warping plate; further, there is an angle between the pressing end 223 and the pivot 221, so that The user can press the pressing member 22 conveniently and labor-savingly; further, the pressing member 22 is provided with a locking groove 224 at the locking end 222, and the hinge portion 221 is provided with two hinge ears 225 spaced apart and facing each other, and the pressing member 22 is provided with a hinge rod 226 combined with the main body 21 and located between the two hinge ears 225, so that the pressing member 22 can be stably placed on the outer surface of the main body 21.

The engaging member 23 is engaged with the pressing member 22 and extends into the limiting slot 211 of the body 21. The engaging member 23 can extend into or leave the limiting slot 211 of the body 21 after the pressing member 22 swings relative to the body 21. Furthermore, the engaging member 23 is provided with an engaging end 231 and a limiting end 232, and the engaging end 231 and the limiting end 232 are respectively located at the engaging member 2 3, the engaging end 231 is engaged with the engaging groove 224 of the pressing member 22, the limiting end 232 extends into the limiting through groove 211 of the body 21, and the restoring member 24 is arranged between the body 21 and the pressing member 22, so as to provide the pressing member 22 with the effect of returning to the initial position after being pressed, wherein the restoring member 24 is against the pressing end 223 of the pressing member 22.

Preferably, the body 21 has a mounting seat 25 protruding from the outer surface, and the mounting seat 25 has a mounting groove 251, a pivot hole 252, a through hole 253 and a coupling groove 254. The mounting groove 251 is recessed in the mounting seat 25, and the pivot hole 252 passes through the two outer sides of the mounting seat 25 transversely and communicates with the mounting groove 251. The pivot rod 226 is passed between the pivot hole 252 and the two pivot ears 225, so that the pressing The member 22 is located in the mounting groove 251 of the mounting seat 25, the through hole 253 radially penetrates the mounting seat 25 and the body 21 and communicates with the limiting groove 211, the limiting end 232 of the engaging member 23 extends into the limiting groove 211 through the through hole 253, the coupling groove 254 is recessed in the mounting seat 25 and communicates with the mounting groove 251, and the recovery member 24 is disposed in the coupling groove 254 through the mounting groove 251.

The extension rod 30 is engaged with the adjustment assembly 20 and extends into the sleeve 10. The extension rod 30 has an insertion end 31, a working end 32 and at least two positioning slots 33. The insertion end 31 and the working end 32 are respectively located at the two ends of the extension rod 30, wherein the insertion end 31 extends into the receiving slot 13 of the sleeve 10 through the limiting slot 211 of the body 21 and the coupling end 12 of the sleeve 10, and the working end 32 is located outside the sleeve 10 and has a The pry head 34, the at least two positioning slots 33 are spaced apart on the outer surface of the extension rod 30 and between the insertion end 31 and the working end 32, the engaging member 23 of the adjustment group 20 is selectively engaged with one of the positioning slots 33 through the limiting through slot 211, so that the extension rod 30 is fixed on the sleeve 10, and the position of the extension rod 30 relative to the sleeve 10 can be adjusted by engaging the engaging member 23 with different positioning slots 33. To adjust the overall length of the adjustable pry bar; further, please refer to FIG. 5, the extension rod 30 has a polygonal cross section, and the limiting slot 211 has an inner ring edge that matches the cross-sectional shape of the extension rod 30, so that the extension rod 30 moves along the limiting slot 211 without rotating. Preferably, the extension rod 30 has a hexagonal cross section, and the limiting slot 211 has a hexagonal inner ring edge, so that the extension rod 30 can only be relative to the adjustment group 2 0 and the sleeve 10 move without rotating relative to the adjustment group 20 and the sleeve 10; further, the extension rod 30 is provided with a plurality of spaced positioning slots 33 on the outer surface, so that the user can adjust the position of the extension rod 30 relative to the sleeve 10 as needed to make the adjustable pry bar have different overall lengths; preferably, each positioning slot 33 is transversely recessed in one of the outer end faces of the polygon of the extension rod 30 and extends to the two outer end faces adjacent to the outer end face.

Please refer to FIG. 6 . When the user needs to adjust the adjustable pry bar of the present invention, he only needs to hold the grip portion 14 with one hand and press the pressing end 223 of the pressing member 22. Then, the hinge portion 221 can be used as a fulcrum to move the clamping end 222 away from the body 21, thereby driving the clamping member 23 to move radially outward relative to the body 21 and the extension rod 30, so that the clamping member 23 is disengaged from the locking slot 33. At this time, since the extension rod 30 is not supported by the clamping member 23, the locking member 23 is not locked. Therefore, the extension rod 30 can move axially relative to the sleeve 10 and the main body 21 as shown in FIG. 7, so as to adjust the overall length of the adjustable pry bar of the present invention by the length of the extension rod 30 extending out of the sleeve 10, so that the adjustable pry bar of the present invention can be used to separate or remove two bonded parts or nails located at different distances or positions according to the needs of the user, not only does it not need to purchase or carry multiple sets of pry bars of different sizes, but it can also relatively reduce the cost required for use, and it can be adjusted for use according to actual conditions, greatly improving the user experience. The utility of the adjustable crowbar of the present invention is improved; further, the user can also place the adjustable crowbar of the present invention downward and press the pressing member 22 as shown in FIG8, so that the extension rod 30 can be moved axially downward relative to the main body 21 and the sleeve 10 by the weight of the extension rod 30. After the extension rod 30 moves to the required length, the user only needs to release the pressing member 22, and the compressed return member 24 will make the pressing member 22 return to the initial position, so that the engaging member 23 can move radially toward the extension rod 30 along with the pressing member 22. The length of the adjustable crowbar of the present invention is adjusted by moving the locking end 232 of the locking member 23 in the other positioning slot 33 of the extension rod 30, which is convenient and easy to use. The limiting slot 211 can provide a limiting effect for the extension rod 30, which can avoid the situation where the locking member 23 cannot be engaged with one of the positioning slots 33 after moving relative to the main body 21 and the extension rod 30, thereby effectively providing an adjustable crowbar with a simple structure, convenient force application and adjustment.

The above is only the preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any person with ordinary knowledge in the relevant technical field, within the scope of the technical solution proposed by the present invention, can make partial changes or modifications to the technical content disclosed by the present invention, and within the scope of the technical solution of the present invention, and all of them are still within the scope of the technical solution of the present invention.

10: Casing

11: Penetration end

12: Binding end

13: Storage slot

14: Grip

20: Adjustment group

21: Body

22: Pressing parts

23: snap-fit parts

25: Mounting seat

30: Extension rod

34: Pry head

Claims (9)

An adjustable crowbar is provided with: a sleeve, the sleeve having a through-end, a coupling end and a receiving groove, the through-end and the coupling end are respectively arranged at two ends of the sleeve, the receiving groove is arranged inside the sleeve and communicates with the through-end and the coupling end; an adjustment group, the adjustment group is combined with the sleeve and has a body, a pressing part, a locking part and a return part, the body is combined with the coupling end of the sleeve and has a limit The through slot is connected to the receiving slot. The pressing piece is movably arranged on the outer surface of the body and is provided with a pivot part, a clamping end and a pressing end. The pivot part is arranged at the middle section of the pressing piece and is pivotally combined with the body. The clamping end and the pressing end are respectively arranged at the two ends of the pressing piece, so that the pressing piece uses the pivot part as a fulcrum, so that the clamping end and the pressing end can be far away from or close to the body. The clamping piece and the pressing piece are connected to each other. The locking member is engaged with the adjusting assembly, and the locking member can extend into or leave the limiting slot of the main body after the pressing member is swung relative to the main body. The return member is arranged between the main body and the pressing member and abuts against the pressing end of the pressing member; and an extension rod, which is engaged with the adjusting assembly and extends into the sleeve, and the extension rod moves along the limiting slot without rotating and is provided with an insertion end, a working end and at least two positioning slots, and the insertion end The working end is located at the two ends of the extension rod respectively, the insertion end extends into the receiving groove through the limiting slot and the coupling end, the working end is located outside the sleeve and has a pry head, the at least two positioning slots are spaced apart and arranged on the outer surface of the extension rod and between the insertion end and the working end, the coupling member is selectively coupled with one of the positioning slots through the limiting slot, so that the extension rod is fixed on the sleeve. The adjustable pry bar as described in claim 1, wherein the pressing member is provided with a locking groove at the locking end, and the hinge portion is provided with two hinge ears spaced apart and facing each other, and the pressing member is provided with a hinge rod combined with the body and located between the two hinge ears, so that the pressing member can be stably positioned on the outer surface of the body. As for the adjustable pry bar described in claim 2, the engaging member is provided with a engaging end and a limiting end, the engaging end and the limiting end are respectively located at two ends of the engaging member, the engaging end is engaged with the engaging groove of the pressing member, and the limiting end extends into the limiting through groove of the body. The adjustable pry bar as described in claim 3, wherein the main body has a mounting seat protruding on the outer surface, the mounting seat has a mounting groove, a hinge, a through hole and a coupling groove, the mounting groove is recessed in the mounting seat, the hinge passes through the two outer side surfaces of the mounting seat transversely and communicates with the mounting groove, the hinge rod passes through the hinge and the two hinge ears, so that the pressing member is located in the mounting groove of the mounting seat, the through hole radially passes through the mounting seat and the main body and communicates with the limiting through groove, the limiting end of the engaging member extends into the limiting through groove through the through hole, the coupling groove is recessed in the mounting seat and communicates with the mounting groove, and the return member is disposed in the coupling groove through the mounting groove. An adjustable pry bar as described in any one of claims 1 to 4, wherein the extension rod has a polygonal cross-section, and the limiting slot has an inner ring edge that matches the cross-sectional shape of the extension rod. The adjustable pry bar as described in claim 5, wherein the sleeve is provided with an enlarged gripping portion adjacent to the coupling end, so that the inner diameter of the sleeve at the coupling end is larger than the inner diameter of the sleeve at the penetration end. As described in claim 6, the adjustable crowbar, wherein the body is axially provided with a coupling tube extending into the receiving groove, and the coupling tube is fixedly coupled with the coupling end of the sleeve, so as to fix the body at the coupling end of the sleeve. As described in claim 7, the adjustable pry bar, wherein each positioning slot is transversely recessed in one of the outer end faces of the extension rod polygon and extends to two outer end faces adjacent to the outer end face. An adjustable crowbar as described in any one of claims 1 to 4, wherein the body is axially provided with a coupling tube extending into the receiving groove, and the coupling tube is fixedly coupled with the coupling end of the sleeve to fix the body at the coupling end of the sleeve.

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