Hydraulic shear

Abstract

The utility model relates to the technical field of hydraulic shears, in particular to a hydraulic shear which comprises a shell part, the inner wall of the shell part is slidably connected with the outer wall of a connecting part, the inner wall of the connecting part is rotatably connected with the outer wall of the center of the right side of a transmission part, and the outer wall of the center of the left side of the transmission part is rotatably connected with the inner wall of a shearing part. The first core shaft is connected with an external hydraulic source, the hydraulic source pushes the first core shaft and the second core shaft to slide in the sliding groove, the distance between the connecting block and the limiting column is changed, then the connecting block, the upper cutter body and the lower cutter body are driven to rotate around the pin shaft, the upper cutter body and the lower cutter body shear an object, the upper cutter body and the lower cutter body are designed to be in an arc shape, and the cutting efficiency is improved. The cutter head can be better attached to a transverse rod or a vertical rod of the security window, the shearing effect is improved, shearing is faster and saves labor, meanwhile, the upper cutter body and the lower cutter body are made of high-strength alloy materials and a special heat treatment technology, the hardness and the abrasion resistance are high, the service life of the cutter head is prolonged, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic shears, and specifically relates to hydraulic shears. BACKGROUND

[0002] With the improvement of people's safety awareness, the application of burglarproof windows in daily life is more and more extensive, however, in emergency rescue or special circumstances, it is necessary to quickly and safely remove the burglarproof window, and the traditional cutting tools such as electric saws have loud noise, sparks flying, and inconvenient operation, and there are certain safety hazards.

[0003] Most of the hydraulic shears on the market have the advantages of simple operation, large shearing force, high efficiency and the like, however, the existing hydraulic shears have the problems of poor shearing effect, easy damage to the burglarproof window material, poor adaptability to different specifications of the burglarproof window and the like when shearing the burglarproof window. UTILITY MODEL CONTENTS

[0004] The utility model discloses a hydraulic shear, which aims at solving the problems of poor shearing effect, easy damage to the burglarproof window material and poor adaptability to different specifications of the burglarproof window in the background art. To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a hydraulic shear comprises a shell piece, the inner wall of the shell piece is slidably connected with the outer wall of a connecting piece, the inner wall of the connecting piece is rotatably connected with the outer wall of the right center of a transmission piece, the outer wall of the left center of the transmission piece is rotatably connected with the inner wall of a shearing piece, and the shearing piece comprises an upper cutter body, a lower cutter body, a third jack, two limiting columns, a threaded hole and a fourth jack.

[0005] The inner wall of the shearing piece is threadedly connected with the outer wall of the two ends of an adjusting piece respectively, the outer wall of the center of the adjusting piece is movably inserted into the inner wall of the shell piece, and the adjusting piece comprises a locking column, a supporting block, a bidirectional screw rod, a limiting ring, an adjusting knob and a locking nut.

[0006] Preferably, the shell piece comprises a base body, a first jack and a sliding groove, the top of the left side of the base body is provided with the first jack, and the inner wall of the right side of the base body is provided with the sliding groove.

[0007] Preferably, the connecting piece comprises a first mandrel, a second mandrel, a screw and a connecting block, the inner wall of the first mandrel is fixedly connected with the inner wall of the second mandrel through the screw, one end of the second mandrel away from the first mandrel is fixedly connected with the right side of the connecting block, and the outer walls of the first mandrel and the second mandrel are slidably connected with the inner wall of the sliding groove.

[0008] Preferably, the transmission member comprises a connecting rod, second insertion holes, a pin shaft and an elastic collar for shaft, the second insertion holes are arranged on the inner walls of the two ends of the connecting rod, the inner walls of the second insertion holes are movably connected with the outer wall of the pin shaft, the outer wall of the bottom end of the pin shaft is fixedly connected with the inner wall of the elastic collar for shaft, the pin shaft is provided with two groups, the two groups of pin shafts are divided into left and right groups along the center line of the connecting rod, and the outer wall of the center of the right group of pin shafts is rotatably connected with the inner wall of the connecting block.

[0009] Preferably, the inner walls of the centers of the upper cutter body and the lower cutter body are provided with third insertion holes, the inner walls of the third insertion holes are movably connected with the outer walls of two limiting columns respectively, the inner wall of the top end of the limiting column is provided with a threaded hole, the inner walls of the right sides of the upper cutter body and the lower cutter body are provided with fourth insertion holes, and the inner walls of the fourth insertion holes are rotatably connected with the outer wall of the center of the right group of pin shafts.

[0010] Preferably, the bottom end of the locking column is fixedly connected with the top of the supporting block, the inner wall of the supporting block is rotatably connected with the outer wall of the bidirectional screw rod, the outer wall of the supporting block close to the supporting block is fixedly connected with the inner wall of the limiting ring, the outer wall of one end of the bidirectional screw rod is fixedly welded with the outer wall of the adjusting knob, the outer wall of the top end of the locking column is threadedly connected with the inner wall of the locking nut, the outer wall of the center of the locking column is movably connected with the inner wall of the first insertion hole, and the outer walls of the two ends of the bidirectional screw rod are threadedly connected with the inner walls of the threaded holes.

[0011] Preferably, the outer walls of the left sides of the upper cutter body and the lower cutter body are provided as arc surfaces, and the arc degrees of the upper cutter body and the lower cutter body are matched with each other.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] In the utility model, the first core shaft is connected with the external hydraulic source, the hydraulic source drives the first core shaft and the second core shaft to slide in the sliding groove, the spacing between the connecting block and the limiting column is changed, the connecting block, the upper cutter body and the lower cutter body are driven to rotate around the pin shaft, the upper cutter body and the lower cutter body are used for shearing objects, the upper cutter body and the lower cutter body are arc-shaped in design, can better fit the horizontal rods or vertical rods of the anti-theft window, the shearing effect is improved, the shearing is faster and more labor-saving, meanwhile, the upper cutter body and the lower cutter body adopt high-strength alloy materials and special heat treatment process, have high hardness and wear resistance, prolong the service life of the cutter head, and reduce the use cost.

[0014] In the utility model, the bidirectional screw rod is driven to rotate in the supporting block by rotating the adjusting knob, the two limiting columns are close to or away from each other, the initial spacing between the upper cutter body and the lower cutter body is adjusted, the hydraulic cutter can be adjusted according to anti-theft windows of different specifications, the universality and adaptability of the cutter head are improved, and the shearing demand of anti-theft windows of different specifications is met. ACCURACY OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the sectional view of the utility model;

[0017] Figure 3 It is the explosion drawing of the utility model;

[0018] Figure 4 It is the sectional view of the shell piece in the utility model;

[0019] Figure 5 It is the whole view of the transmission piece and the shearing piece in the utility model.

[0020] In the drawing: 1, shell piece; 101, base body; 102, first jack; 103, chute; 2, connecting piece; 201, first mandrel; 202, second mandrel; 203, screw; 204, connecting block; 3, transmission piece; 301, connecting rod; 302, second jack; 303, pin shaft; 304, elastic blocking ring for shaft; 4, shearing piece; 401, upper cutter body; 402, lower cutter body; 403, third jack; 404, limiting column; 405, screw hole; 406, fourth jack; 5, adjusting piece; 501, locking column; 502, supporting block; 503, bidirectional screw rod; 504, limiting ring; 505, adjusting knob; 506, locking nut. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative work belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1 to 5 The utility model provides a technical scheme: hydraulic shears, including shell piece 1, the inner wall of shell piece 1 is slidably connected with the outer wall of connecting piece 2, the inner wall of connecting piece 2 is rotatably connected with the outer wall of the right side center of transmission piece 3, the outer wall of the left side center of transmission piece 3 is rotatably connected with the inner wall of shearing piece 4, and shearing piece 4 includes upper cutter body 401, lower cutter body 402, third jack 403, two limiting columns 404, screw hole 405 and fourth jack 406.

[0023] The inner wall of shearing piece 4 is respectively threadedly connected with the outer wall of both ends of adjusting piece 5, the outer wall of the center of adjusting piece 5 is movably inserted with the inner wall of shell piece 1, and adjusting piece 5 includes locking column 501, supporting block 502, bidirectional screw rod 503, limiting ring 504, adjusting knob 505 and locking nut 506.

[0024] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the shell 1 comprises a base body 101, a first insertion hole 102 and a sliding groove 103, the first insertion hole 102 is arranged at the top of the left side of the base body 101, and the sliding groove 103 is arranged on the inner wall of the right side of the base body 101.

[0025] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the connecting piece 2 comprises a first shaft 201, a second shaft 202, a screw 203 and a connecting block 204, the inner wall of the first shaft 201 is fixedly connected with the inner wall of the second shaft 202 through the screw 203, one end of the second shaft 202 away from the first shaft 201 is fixedly connected with the right side of the connecting block 204, the outer wall of the first shaft 201 and the outer wall of the second shaft 202 are both in sliding connection with the inner wall of the sliding groove 103, the first shaft 201 is connected with an external hydraulic source, and the hydraulic source drives the first shaft 201 and the second shaft 202 to slide in the sliding groove 103.

[0026] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the transmission piece 3 comprises a connecting rod 301, a second insertion hole 302, a pin shaft 303 and an elastic shaft washer 304, the inner wall of the connecting rod 301 close to both ends is provided with the second insertion hole 302, the inner wall of the second insertion hole 302 is movably inserted with the outer wall of the pin shaft 303, the outer wall of the bottom end of the pin shaft 303 is fixedly connected with the inner wall of the elastic shaft washer 304, the pin shaft 303 is provided with two groups, the two groups of pin shafts 303 are divided into left and right groups along the center line of the connecting rod 301, the outer wall of the center of the pin shaft 303 on the right side is rotatably connected with the inner wall of the connecting block 204, and the elastic shaft washer 304 locks the pin shaft 303.

[0027] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the inner wall of the center of the upper cutter body 401 and the lower cutter body 402 is provided with a third jack 403, and the inner wall of the third jack 403 is movably inserted with the outer wall of two limiting columns 404, the inner wall of the top end of the limiting column 404 is provided with a threaded hole 405, and the inner wall of the right side of the upper cutter body 401 and the lower cutter body 402 is provided with a fourth jack 406, and the inner wall of the fourth jack 406 is rotatably connected with the outer wall of the center of a group of pin shafts 303 located on the right side. The upper cutter body 401 and the lower cutter body 402 are arc-shaped, which can better fit the horizontal rod or vertical rod of the burglarproof window, improve the shearing effect, make the shearing more rapid and labor-saving, and at the same time, the upper cutter body 401 and the lower cutter body 402 are made of high-strength alloy material and special heat treatment process, have high hardness and wear resistance, prolong the service life of the cutter head, and reduce the use cost.

[0028] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the bottom end of the locking column 501 is fixedly connected with the top of the supporting block 502, the inner wall of the supporting block 502 is rotatably connected with the outer wall of the bidirectional screw rod 503, the outer wall of the bidirectional screw rod 503 close to the supporting block 502 is fixedly connected with the inner wall of the limiting ring 504, the outer wall of one end of the bidirectional screw rod 503 is fixedly welded with the outer wall of the adjusting knob 505, the outer wall of the top end of the locking column 501 is threadedly connected with the inner wall of the locking nut 506, and the outer wall of the center of the locking column 501 is movably inserted with the inner wall of the first jack 102. The outer walls of both ends of the bidirectional screw rod 503 are threadedly connected with the inner walls of the threaded holes 405. By rotating the adjusting knob 505 to drive the bidirectional screw rod 503 to rotate in the supporting block 502, the two limiting columns 404 are close to or away from each other, thereby adjusting the initial distance between the upper cutter body 401 and the lower cutter body 402, so that the hydraulic shears can be adjusted according to different specifications of the burglarproof window, the universality and adaptability of the cutter head are improved, and the shearing demand of different specifications of the burglarproof window is met.

[0029] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the outer wall of the left side of the upper cutter body 401 and the lower cutter body 402 is provided as an arc surface, and the radii of the upper cutter body 401 and the lower cutter body 402 match each other. The arc surface can better fit the horizontal rod or vertical rod of the burglarproof window during the shearing process, thereby improving the shearing effect.

[0030] The use method and advantages of the hydraulic shears are as follows:

[0031] As shown in Figure 1 , Figure 2 , Figure 3、 Figure 4 and Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 As shown in the drawings, by connecting the first core shaft 201 with the external hydraulic source, the hydraulic source pushes the first core shaft 201 and the second core shaft 202 to slide in the sliding groove 103, the spacing between the connecting block 204 and the limiting column 404 is changed, and then the connecting block 204, the upper cutter body 401 and the lower cutter body 402 are driven to rotate around the pin shaft 303, the upper cutter body 401 and the lower cutter body 402 are sheared to the object, the upper cutter body 401 and the lower cutter body 402 are designed in an arc shape, can better fit the horizontal rod or vertical rod of the burglar window, improve the shearing effect, make the shearing more quickly and labor-saving, at the same time, the upper cutter body 401 and the lower cutter body 402 adopt high-strength alloy material and special heat treatment process, have high hardness and wear resistance, prolong the service life of the cutter head, reduce the use cost, by rotating the adjusting knob 505 to drive the bidirectional screw rod 503 to rotate in the supporting block 502, the two limiting columns 404 are close to or away from each other, and then the initial spacing between the upper cutter body 401 and the lower cutter body 402 is adjusted, so that the hydraulic cutter can be adjusted according to different specifications of the burglar window, improve the universality and adaptability of the cutter head, meet the shearing demand of different specifications of the burglar window.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. The technical workers in the industry should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. Hydraulic shears comprising a housing element (1), characterised in that: The inner wall of the shell piece (1) is in sliding connection with the outer wall of the connecting piece (2), the inner wall of the connecting piece (2) is in rotary connection with the outer wall of the center of the right side of the transmission piece (3), the outer wall of the center of the left side of the transmission piece (3) is in rotary connection with the inner wall of the shearing piece (4), and the shearing piece (4) comprises an upper cutter body (401), a lower cutter body (402), a third jack (403), two limiting columns (404), a threaded hole (405) and a fourth jack (406). The inner wall of the shearing piece (4) is in threaded connection with the outer wall of the two ends of the adjusting piece (5) respectively, the outer wall of the center of the adjusting piece (5) is in movable insertion with the inner wall of the shell piece (1), and the adjusting piece (5) comprises a locking column (501), a supporting block (502), a bidirectional screw rod (503), a limiting ring (504), an adjusting knob (505) and a locking nut (506).

2. The hydraulic shear of claim 1, wherein: The shell piece (1) comprises a base body (101), a first jack (102) and a sliding groove (103), the top of the left side of the base body (101) is provided with the first jack (102), and the inner wall of the right side of the base body (101) is provided with the sliding groove (103).

3. The hydraulic shear of claim 2, wherein: The connecting piece (2) comprises a first mandrel (201), a second mandrel (202), a screw (203) and a connecting block (204), the inner wall of the first mandrel (201) is fixedly connected with the inner wall of the second mandrel (202) through the screw (203), one end of the second mandrel (202) away from the first mandrel (201) is fixedly connected with the right side of the connecting block (204), and the outer walls of the first mandrel (201) and the second mandrel (202) are in sliding connection with the inner wall of the sliding groove (103).

4. The hydraulic shear of claim 3, wherein: The transmission piece (3) comprises a connecting rod (301), a second jack (302), a pin shaft (303) and an elastic retaining ring for shaft (304), the inner walls close to the two ends of the connecting rod (301) are provided with the second jacks (302), the inner walls of the second jacks (302) are movably inserted with the outer walls of the pin shafts (303), the outer wall of the bottom end of the pin shaft (303) is fixedly connected with the inner wall of the elastic retaining ring for shaft (304), the pin shaft (303) is provided with two groups, the two groups of pin shafts (303) are divided into left and right groups along the center line of the connecting rod (301), and the outer wall of the center of the right group of pin shafts (303) is in rotary connection with the inner wall of the connecting block (204).

5. The hydraulic shear of claim 4, wherein: The inner walls of the centers of the upper cutter body (401) and the lower cutter body (402) are provided with the third jacks (403), the inner walls of the third jacks (403) are movably inserted with the outer walls of the two limiting columns (404) respectively, the inner wall of the top end of the limiting column (404) is provided with the threaded hole (405), the inner walls close to the right side of the upper cutter body (401) and the lower cutter body (402) are provided with the fourth jacks (406), and the inner wall of the fourth jack (406) is in rotary connection with the outer wall of the center of the right group of pin shafts (303).

6. The hydraulic shear of claim 5, wherein: The bottom end of the locking column (501) is fixedly connected with the top of the supporting block (502), the inner wall of the supporting block (502) is rotationally connected with the outer wall of the bidirectional screw rod (503), the outer wall of one end of the bidirectional screw rod (503) is fixedly welded with the outer wall of the adjusting knob (505), the outer wall of the top end of the locking column (501) is threadedly connected with the inner wall of the locking nut (506), and the outer wall of the center of the locking column (501) is movably inserted with the inner wall of the first jack (102).

7. The hydraulic shear of claim 5, wherein: The outer walls of the left sides of the upper cutter body (401) and the lower cutter body (402) are all arranged as arc surfaces, and the arc degrees of the upper cutter body (401) and the lower cutter body (402) are matched with each other.

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