Safety locking device for hydraulic machine

Abstract

The safety locking device for the hydraulic machine relates to the technical field of hydraulic machine safety and comprises a shell, a mounting groove is formed in the top of the shell, a hydraulic cylinder is fixedly connected to the interior of the mounting groove, a hydraulic lifting rod is fixedly connected to the top of the hydraulic cylinder, a connecting rod is fixedly installed on one side of a clamping groove, and the connecting rod is fixedly connected to the other side of the clamping groove. A sliding groove is formed in the inner wall of the connecting rod, and a fixing device is movably connected to the interior of one side of the clamping groove. The second sleeve is connected with the top of the first sleeve in a sleeving mode in the retraction process of the second telescopic rod, so that the device is tightly connected after use is finished, the situation of connection sliding is avoided, the output end of the hydraulic telescopic rod pushes the clamping plates, the clamping size of the two sets of clamping plates is changed, the clamping plates stably clamp the outer wall of the hydraulic lifting rod, and the working efficiency is improved. And the clamping plate is inserted into the inner part from the other side and clamped at the bottoms of the two parts, so that the hydraulic lifting rod can be prevented from suddenly descending in the repairing process, and the injury to personnel at the bottom is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic press safety, specifically relates to a safety locking device for hydraulic press. BACKGROUND

[0002] The safety bolt is an important safety device in the mechanical press. The traditional safety is movable. That is, when not in use, the safety bolt is placed in a container for storage, and when in use, the safety bolt is taken out of the container and placed between the upper die and the lower die to prevent the die from falling accidentally and injuring the person or other things below. When the hydraulic press is overhauled, the sliding block needs to be locked to ensure the safety of the overhaul personnel.

[0003] The existing safety locking device for hydraulic press has the following problems:

[0004] 1. The existing safety locking device for hydraulic press is prone to sliding during the up-down operation, which makes the hydraulic lifting process unstable and affects the safety of the device in use.

[0005] 2. The existing safety locking device for hydraulic press does not have a fixing device during the overhaul of the hydraulic press, which makes the device slide from the top to the bottom and easily injure the bottom overhaul personnel. INVENTION CONTENTS

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A safety locking device for hydraulic press, comprising an outer shell, a mounting groove is formed in the top of the outer shell, a clamping groove is formed in the upper side of the outer shell, a connecting cylinder is connected to the top of the mounting groove, a telescopic cylinder is fixedly connected to the top of the connecting cylinder, a hydraulic cylinder is fixedly connected inside the mounting groove, a hydraulic lifting rod is fixedly connected to the top of the hydraulic cylinder, a connecting rod is fixedly installed on one side of the clamping groove, a sliding groove is formed in the inner wall of the connecting rod, a fixing device is movably connected inside one side of the clamping groove, the fixing device comprises a connecting plate, and a lock bolt is inserted into the other side of the clamping groove.

[0008] The further improvement of the utility model technical solution is that the hydraulic lifting rod comprises a first telescopic rod, a first sleeve is fixedly connected to the top of the first telescopic rod, a second telescopic rod is fixedly connected to the top of the first sleeve, a second sleeve is fixedly connected to the top of the second telescopic rod, and an extension rod is fixedly connected to the top of the second sleeve.

[0009] The further improvement of the utility model technical solution is that the bottom of the first telescopic rod is fixedly connected to the output end of the hydraulic cylinder, the openings of the first sleeve and the second sleeve face downward, and the top of the first telescopic rod is inserted into the inside of the first sleeve.

[0010] The further improvement of the technical scheme of the utility model lies in that one side of the connecting plate is fixedly connected with a snap ring, the other end of the connecting plate is connected with a rotating rod in penetration, the outer wall of the snap ring is fixedly connected with a hydraulic telescopic rod, and one end of the hydraulic telescopic rod is fixedly connected with a clamping plate.

[0011] The further improvement of the technical scheme of the utility model lies in that the rotating rod is installed in the inside of the clamping groove, and the upper and lower ends of the rotating rod are inserted into the inner wall of the shell in plug-in connection.

[0012] The further improvement of the technical scheme of the utility model lies in that the lock bolt comprises a clamping plate, and the inner wall of the clamping plate is fixedly connected with a convex plate.

[0013] Thanks to the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0014] 1. The utility model provides a safe locking device for hydraulic machine, the output end of the hydraulic cylinder is connected with the hydraulic lifting rod, the first telescopic rod and the second telescopic rod of the hydraulic lifting rod can drive extension, one end of the first telescopic rod is inserted into the inside of the first sleeve, the inside of the first sleeve can be connected with the top of the output end of the hydraulic cylinder in the process of retraction of the first telescopic rod, the connection of the two can make the device connection more closely, and the second sleeve is connected with the top of the first sleeve in the process of retraction of the second telescopic rod, so that the device is closely connected after use, and the connection sliding does not occur, so that the device is safer and more stable.

[0015] 2. The utility model provides a safe locking device for hydraulic machine, when the hydraulic lifting rod appears fault in the process of use, the fixing device of one side of the shell is pushed, the rotating rod in the inside of the sliding groove is pushed to the inside of the clamping groove, the snap ring is half surrounded to the hydraulic lifting rod, if the second telescopic rod or the second sleeve is of different sizes, the output end of the hydraulic telescopic rod pushes the clamping plate, the clamping size of the two sets of clamping plates is changed, the clamping plate stably clamps the outer wall of the hydraulic lifting rod, and the clamping plate is inserted into the inside on the other side, the clamping plate is clamped at the bottom of the two, the hydraulic lifting rod can be prevented from suddenly descending in the process of repair, so that the device is safer, and the personnel at the bottom is prevented from being hurt. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the structure schematic view of the safe locking device for hydraulic machine of the utility model;

[0017] Figure 2 It is the structure schematic view of the shell of the utility model;

[0018] Figure 3 It is the structure schematic view of the hydraulic lifting rod of the utility model;

[0019] Figure 4 The utility model discloses a fixed device's structural schematic view.

[0020] In the drawing: 1, shell, 2, card slot, 3, connecting cylinder, 4, telescopic cylinder, 5, installation slot, 6, hydraulic cylinder, 7, hydraulic lifting rod, 8, fixed device, 9, lock bolt, 10, connecting rod, 11, sliding slot, 72, first telescopic rod, 73, first sleeve, 74, second telescopic rod, 75, second sleeve, 76, extension rod, 81, connecting plate, 82, snap ring, 83, rotating rod, 84, hydraulic telescopic rod, 85, clamping plate, 91, clamping plate, 92, convex plate. DETAILED DESCRIPTION

[0021] The utility model makes further detailed explanation from the following combining example:

[0022] Example 1

[0023] As Figures 1-4 The utility model provides a safe locking device for hydraulic machine, including shell 1, the top of shell 1 is seted up with installation slot 5, the upper side of shell 1 is seted up with card slot 2, the top of installation slot 5 is connected with connecting cylinder 3, the top of connecting cylinder 3 is fixedly connected with telescopic cylinder 4, the inside of installation slot 5 is fixedly connected with hydraulic cylinder 6, the top of hydraulic cylinder 6 is fixedly connected with hydraulic lifting rod 7, one side of card slot 2 is fixedly installed with connecting rod 10, the inner wall of connecting rod 10 is seted up with sliding slot 11, the inside one side of card slot 2 is movably connected with fixed device 8, and fixed device 8 includes connecting plate 81, and the other side of card slot 2 is inserted with lock bolt 9.

[0024] In the embodiment, the device is more convenient to use by the cooperation of shell 1, connecting cylinder 3, telescopic cylinder 4 and hydraulic lifting rod 7, the inside of shell 1 is installed with hydraulic cylinder 6, the output end of hydraulic cylinder 6 is connected with hydraulic lifting rod 7, in order to keep hydraulic lifting rod 7 stable during telescoping, the top of shell 1 is provided with connecting cylinder 3 and telescopic cylinder 4, when hydraulic lifting rod 7 is too long, stretch telescopic cylinder 4, and telescopic cylinder 4 supports the extension end of hydraulic lifting rod 7, and the extension end keeps stable and does not shake.

[0025] Example 2

[0026] As Figures 1-4 The utility model provides a technical scheme based on the basis of example 1: preferably, hydraulic lifting rod 7 includes first telescopic rod 72, the top of first telescopic rod 72 is fixedly connected with first sleeve 73, the top of first sleeve 73 is fixedly connected with second telescopic rod 74, the top of second telescopic rod 74 is fixedly connected with second sleeve 75, and the top of second sleeve 75 is fixedly connected with extension rod 76.

[0027] The bottom of the first telescopic rod 72 is fixedly connected to the output end of the hydraulic cylinder 6. The openings of the first sleeve 73 and the second sleeve 75 face downwards, and the top of the first telescopic rod 72 is inserted into the inside of the first sleeve 73.

[0028] In this embodiment, the combined action of the hydraulic cylinder 6 and the hydraulic lifting rod 7 makes the device more convenient to use. The output end of the hydraulic cylinder 6 is connected to the hydraulic lifting rod 7. The first telescopic rod 72 and the second telescopic rod 74 of the hydraulic lifting rod 7 can both be driven to extend. One end of the first telescopic rod 72 is inserted into the inside of the first sleeve 73. During the retraction of the first telescopic rod 72, the inside of the first sleeve 73 can be sleeved above the output end of the hydraulic cylinder 6. The sleeved connection between the two makes the device more tightly connected. Similarly, the second sleeve 75 is sleeved and connected to the top of the first sleeve 73 during the retraction of the second telescopic rod 74, so that the device is tightly connected after use and there will be no slippage, making the device safer and more stable to use.

[0029] Example 3

[0030] like Figures 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a retaining ring 82 is fixedly connected to one side of the connecting plate 81, a rotating rod 83 is connected through the other end of the connecting plate 81, a hydraulic telescopic rod 84 is fixedly connected to the outer wall of the retaining ring 82, and a clamping plate 85 is fixedly connected to one end of the hydraulic telescopic rod 84.

[0031] The rotating rod 83 is installed inside the slot 2, with its upper and lower ends inserted into the inner wall of the outer casing 1, and the rotating rod 83 is slidably connected inside the slide groove 11.

[0032] The locking bolt 9 includes a locking plate 91, and a protruding plate 92 is fixedly connected to the inner wall of the locking plate 91.

[0033] In this embodiment, the combined action of the hydraulic lifting rod 7, the fixing device 8, and the locking bolt 9 makes the device easier to use. Pushing the fixing device 8 on one side of the outer casing 1 causes the rotating rod 83 inside the slide groove 11 to push into the slot 2, causing the retaining ring 82 to partially surround the hydraulic lifting rod 7. If the second telescopic rod 74 or the second sleeve 75 are of different sizes, the output end of the hydraulic telescopic rod 84 pushes the clamping plate 85, changing the clamping size of the two sets of clamping plates 85. The clamping plate 85 stably clamps the outer wall of the hydraulic lifting rod 7. At the same time, the locking plate 91 is inserted into the other side. The locking plate 91 is locked at the bottom of both, which can prevent the hydraulic lifting rod 7 from suddenly dropping during the repair process, making the device safer to use and reducing the risk of injury to personnel at the bottom.

[0034] The working principle of the safety locking device used in hydraulic presses will be explained in detail below.

[0035] likeFigures 1-4 As shown, when the safety locking device for hydraulic machine is in use, the inside of the shell 1 is installed with a hydraulic cylinder 6, the output end of the hydraulic cylinder 6 is connected with a hydraulic lifting rod 7, in order to keep the hydraulic lifting rod 7 stable during the extension and retraction process, the top of the shell 1 is provided with a connecting barrel 3 and an extension barrel 4, when the hydraulic lifting rod 7 is extended for too long, the extension barrel 4 is pulled, the extension barrel 4 plays a stable support for the extended end of the hydraulic lifting rod 7, the extended end keeps stable and does not shake, the output end of the hydraulic cylinder 6 is connected with the hydraulic lifting rod 7, the first extension rod 72 and the second extension rod 74 of the hydraulic lifting rod 7 can be driven to extend, one end of the first extension rod 72 is inserted into the inside of the first sleeve 73, the inside of the first sleeve 73 can be sleeved with the upper part of the output end of the hydraulic cylinder 6 during the retraction process of the first extension rod 72, the sleeved connection between the two can make the device connection more closely, and the second sleeve 75 is connected with the top of the first sleeve 73 during the retraction process of the second extension rod 74, so that the device is connected closely after use, and the connection sliding does not occur, so that the device is used more safely and stably, the fixed device 8 on one side of the shell 1 is pushed, the rotating rod 83 in the sliding groove 11 is pushed to the inside of the clamping groove 2, the clamping ring 82 is urged to semi-surround the hydraulic lifting rod 7, if the second extension rod 74 or the second sleeve 75 is of different sizes, the output end of the hydraulic extension rod 84 pushes the clamping plate 85, so that the clamping size of the two groups of clamping plates 85 is changed, the clamping plate 85 stably clamps the outer wall of the hydraulic lifting rod 7, and then the clamping plate 91 is inserted into the inside on the other side, the clamping plate 91 is clamped at the bottom of the two, which can prevent the hydraulic lifting rod 7 from suddenly falling during the repair process, so that the device is used more safely, and personnel at the bottom is less injured.

[0036] The above has made a detailed description of the present application in general, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the present application are within the protection scope of the present application.

Claims

1. A safety locking device for a hydraulic press comprising a housing (1), characterised in that: The top of the shell (1) is provided with a mounting groove (5), the upper side of the shell (1) is provided with a clamping groove (2), the top of the mounting groove (5) is clamped with a connecting barrel (3), the top of the connecting barrel (3) is fixedly connected with a telescopic barrel (4), the inside of the mounting groove (5) is fixedly connected with a hydraulic cylinder (6), the top of the hydraulic cylinder (6) is fixedly connected with a hydraulic lifting rod (7), one side of the clamping groove (2) is fixedly installed with a connecting rod (10), the inner wall of the connecting rod (10) is provided with a sliding groove (11), the inside of one side of the clamping groove (2) is movably connected with a fixing device (8), the fixing device (8) comprises a connecting plate (81), the other side of the clamping groove (2) is inserted with a lock bolt (9).

2. A safety locking device for a hydraulic press according to claim 1, characterized in that: The hydraulic lifting rod (7) comprises a first telescopic rod (72), the top of the first telescopic rod (72) is fixedly connected with a first sleeve (73), the top of the first sleeve (73) is fixedly connected with a second telescopic rod (74), the top of the second telescopic rod (74) is fixedly connected with a second sleeve (75), the top of the second sleeve (75) is fixedly connected with an extension rod (76).

3. A safety locking device for a hydraulic press according to claim 2, wherein: The bottom of the first telescopic rod (72) is fixedly connected with the output end of the hydraulic cylinder (6), the openings of the first sleeve (73) and the second sleeve (75) are downward, and the top of the first telescopic rod (72) is inserted into the inside of the first sleeve (73).

4. A safety locking device for a hydraulic press as claimed in claim 1, wherein: One side of the connecting plate (81) is fixedly connected with a clamping ring (82), the other end of the connecting plate (81) is penetratedly connected with a rotating rod (83), the outer wall of the clamping ring (82) is fixedly connected with a hydraulic telescopic rod (84), one end of the hydraulic telescopic rod (84) is fixedly connected with a clamping plate (85).

5. A safety locking device for a hydraulic press according to claim 4, wherein: The rotating rod (83) is installed in the inside of the clamping groove (2), and the upper and lower ends are inserted into the inner wall of the shell (1), and the rotating rod (83) is slidably connected in the inside of the sliding groove (11).

6. A safety locking device for a hydraulic press as defined in claim 1, wherein: The lock bolt (9) comprises a clamping plate (91), and the inner wall of the clamping plate (91) is fixedly connected with a convex plate (92).

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