Single step hydraulic bolt lift

Abstract

The application discloses a single-step hydraulic plug type lifting device, and belongs to the field of hydraulic devices.The single-step hydraulic plug type lifting device comprises a lifting device, and the lifting device comprises a guide column, a plurality of uniformly distributed insertion holes are formed in the guide column, a fixing base and a floating ring are arranged on the guide column, the lower end of the fixing base is fixedly connected with a supporting ring matched with the guide column, a plurality of hydraulic cylinders are connected between the floating ring and the fixing base, the floating ring is fixedly connected with a mounting ring, two pairs of hydraulic plugs matched with the guide column are mounted on the mounting ring, and two pairs of anchoring plugs matched with the guide column are mounted on the fixing base.The scheme can realize the synchronous insertion of the plugs into the insertion holes in the lifting process, and can assist in fixing and emergently locking the lifting platform in an emergency, so that the load is uniformly distributed on the plugs and the safety of the lifting platform in use is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic equipment, in particular to a single-step hydraulic bolt type lifting device. BACKGROUND

[0002] The hydraulic bolt type platform lifting system is widely used in platforms that need to be frequently lifted. The lifting cylinder has a certain hydraulic buffering effect when the platform is lifted. The bolt has a locking function for the platform, which greatly improves the safety performance of the platform. The single-step hydraulic lifting device has the advantages of small volume ratio and light weight.

[0003] The single-step hydraulic lifting device is intermittent lifting, and the intermittent time accounts for a large proportion, so the lifting efficiency is low, but the structure is simple and easy to maintain and maintain, and it is especially suitable for various self-lifting platforms that do not require high lifting speed but need frequent lifting.

[0004] However, the insertion depth of the plug in the current single-step hydraulic lifting device may be different, so that the load distribution of the lifting platform is uneven, the stress of multiple plugs is uneven, which leads to rapid fatigue and aging of local plugs, and the emergency protection measures are not perfect when an emergency occurs during lifting. SUMMARY

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present application is to provide a single-step hydraulic bolt type lifting device. Compared with the existing hydraulic lifting system, the design can ensure the stable synchronous insertion of the plug into the plug hole during lifting, and can assist in fixing and emergency braking of the lifting platform in an emergency, so that the load distribution of the plug is uniform, and the safety of the lifting platform during use is guaranteed.

[0007] 2. Technical scheme

[0008] In order to solve the above problems, the technical scheme adopted by the present application is as follows.

[0009] The single-step hydraulic plug type lifting device comprises a guide column, a plurality of uniformly distributed insertion holes are formed in the guide column, a fixed seat and a floating ring are arranged on the guide column, a support ring matched with the guide column is fixedly connected to the lower end of the fixed seat, a plurality of hydraulic cylinders are connected between the floating ring and the fixed seat, an installation ring is fixedly connected to the floating ring, two pairs of hydraulic bolts matched with the guide column are installed on the installation ring, two pairs of anchoring bolts matched with the guide column are installed on the fixed seat, the anchoring bolt comprises a hydraulic cylinder fixedly connected with the fixed seat, a pressurizing column is fixedly connected to the power output end of the hydraulic cylinder, an insertion bolt matched with the insertion hole is fixedly connected to the pressurizing column, the support ring comprises a sliding cylinder, a plurality of support plates are connected between the sliding cylinder and the fixed seat, a sleeve ring is fixedly connected to the upper end of the sliding cylinder, a pair of electric push rods are connected between the sleeve ring and the fixed seat, an annular groove is formed in one end of the sleeve ring close to the guide column, a locking arc plate is slidably connected in the annular groove, a buffer resetter is connected between the locking arc plate and the output end of the electric push rod, a through hole matched with the insertion bolt is formed in the locking arc plate, and a pressing groove matched with the pressurizing column is formed in the through hole, so that the insertion bolt can be stably and synchronously inserted into the insertion hole during lifting, the lifting platform can be fixed and locked in emergency, the load distribution of the insertion bolt is uniform, and the safety of the lifting platform during use is ensured.

[0010] Further, the buffer resetter comprises a fixed column connected with the movable end of the electric push rod, a movable column is inserted into the fixed column, the movable column penetrates through the sleeve ring and is fixedly connected with the locking arc plate, and a reset spring is connected between the movable column and the inner wall of the sleeve ring, so that the locking arc plate is reset by the buffer resetter.

[0011] Further, a plurality of fixed bolts are connected between the sleeve ring and the support plate and the fixed seat, so as to ensure the stability of the connection between the support ring and the fixed seat.

[0012] Further, a through hole matched with the insertion bolt is formed in the locking arc plate, a pressing groove matched with the pressurizing column is formed in the through hole, and a through hole matched with the pressing groove is formed in the sleeve ring, so that when the fixed seat needs to be fixed during lifting, the insertion bolt can penetrate through the through hole and be inserted into the insertion hole after the through hole is matched with the insertion hole on the guide column, and when the fixed seat needs to be fixed after being fixed, the pressurizing column can pressurize the pressing groove, so that the locking arc plate can tightly lock the guide column.

[0013] Further, a pressure sensing belt is arranged on the plug, the pressure sensing belt comprises a conductive film connected with the plug, and a plurality of uniformly distributed pressure sensing units are fixedly connected to the conductive film. A signal feedback unit matched with the pressure sensing unit is arranged in the pressing column, and the signal feedback unit is electrically connected with the controller. After the plug is inserted into the socket, the inner wall of the socket interacts with the plug, so that the pressure sensing unit at the corresponding position is activated under force. At this time, the signal feedback unit records the corresponding number of the pressure sensing unit and sends it to the controller, so that the controller compares the differences of the activated pressure sensing units on the plurality of plugs, judges whether the insertion length of the plug is consistent, and ensures that the length of the plug inserted into the socket is consistent.

[0014] Further, the hydraulic plug is an electric push rod with a clamping bolt matched with the socket.

[0015] Further, the locking arc plate comprises a brake pad matched with the guide column, the brake pad is fixedly connected with a sliding table matched with the annular groove, and the pressure groove is arranged on the sliding table.

[0016] Further, the hydraulic control system comprises a controller arranged in the fixed seat, and the hydraulic cylinder, the anchor bolt, the hydraulic plug and the electric push rod are signal connected with the controller.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present application are:

[0019] (1) The scheme can realize the synchronous insertion of the plug into the socket during the lifting process, and can assist in fixing and emergency locking of the lifting platform in emergency, so that the load distribution of the plug is uniform, and the safety of the lifting platform during use is ensured.

[0020] (2) The buffer resetter comprises a fixed column connected with the movable end of the electric push rod, the fixed column is inserted with a movable column, the movable column penetrates through the sleeve ring and is fixedly connected with the locking arc plate, and the reset spring is connected between the movable column and the inner wall of the sleeve ring. The buffer resetter is used to reset the locking arc plate.

[0021] (3) The locking arc plate is provided with a through hole matched with the plug, the through hole is provided with a pressure groove matched with the pressing column, and the sleeve ring is provided with a through hole matched with the pressure groove. When the fixed seat needs to be fixed during the lifting process, the plug can penetrate through the through hole and be inserted into the socket after the through hole is matched with the socket on the guide column. When the fixed seat needs to be fixed, the pressing column can press the pressure groove, so that the locking arc plate can tightly hold the guide column.

[0022] (4) The plug is provided with a pressure sensing belt, the pressure sensing belt comprises a connected conductive film, and a plurality of uniformly distributed pressure sensing units are fixedly connected on the conductive film. A signal feedback unit matched with the pressure sensing unit is installed in the pressing column, and the signal feedback unit is electrically connected with the controller. After the plug is inserted into the socket, the inner wall of the socket interacts with the plug, so that the pressure sensing unit at the corresponding position is activated under force. At this time, the signal feedback unit records the corresponding number of the pressure sensing unit and sends it to the controller, so that the controller compares the differences of the activated pressure sensing units on the plurality of plugs, judges whether the plug insertion length is consistent, and ensures that the length of the plug inserted into the socket is consistent. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of the present application;

[0024] Figure 2 is a sectional view of the anchor bolt of the present application;

[0025] Figure 3 is Figure 2 is a structural schematic view of position A in the middle;

[0026] Figure 4 is a structural schematic view of the lock arc plate of the present application when not under pressure;

[0027] Figure 5 is Figure 4 is a structural schematic view of position B in the middle;

[0028] Figure 6 is a sectional view of the hydraulic cylinder of the present application;

[0029] Figure 7 is a top view of the present application;

[0030] Figure 8 is a bottom view of the present application.

[0031] Explanation of reference numerals in the drawing:

[0032] 1 guide column, 2 fixed seat, 3 floating ring, 4 hydraulic cylinder, 5 mounting ring, 6 support ring, 601 sliding cylinder, 602 support plate, 603 sleeve ring, 604 lock arc plate, 7 anchor bolt, 701 hydraulic cylinder, 702 pressing column, 703 plug, 8 hydraulic bolt, 9 electric push rod, 10 buffer restorer, 1001 fixed column, 1002 movable column. DETAILED DESCRIPTION

[0033] The embodiment 1 will be described in combination with the disclosed drawings, so as to make the technical solutions clear and complete, and the purpose, technical solutions and beneficial effects of the embodiment of the present disclosure more clear. Obviously, the described embodiment is part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0034] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be the conventional meanings understood by those skilled in the art to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, number or importance, but are only used to distinguish different components. The words such as "include" and "comprise" mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, and do not exclude other elements or objects. "Up", "down", "inner", "outer" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] Embodiment:

[0036] Please refer to Figures 1-8 A single step hydraulic plug type lifting device, comprising a guide column 1, a plurality of evenly distributed insertion holes are formed on the guide column 1, a fixed seat 2 and a floating ring 3 are arranged on the guide column 1, the lower end of the fixed seat 2 is fixedly connected with a support ring 6 matched with the guide column 1, a plurality of hydraulic cylinders 4 are connected between the floating ring 3 and the fixed seat 2, the floating ring 3 is fixedly connected with a mounting ring 5, two pairs of hydraulic bolts 8 matched with the guide column 1 are mounted on the mounting ring 5, the hydraulic bolt 8 is an electric push rod with a clamping bolt matched with the insertion hole. Two pairs of anchor bolts 7 matched with the guide column 1 are mounted on the fixed seat 2;

[0037] Please refer to Figures 2-4 The anchor bolt 7 comprises a hydraulic cylinder 701 fixedly connected with the fixed seat 2, a pressurizing column 702 is fixedly connected on the power output end of the hydraulic cylinder 701, and an insertion bolt 703 matched with the insertion hole is fixedly connected on the pressurizing column 702;

[0038] The support ring 6 comprises a sliding cylinder 601, a plurality of support plates 602 are connected between the sliding cylinder 601 and the fixed seat 2, the upper end of the sliding cylinder 601 is fixedly connected with a sleeve ring 603, a pair of electric push rods 9 are connected between the sleeve ring 603 and the fixed seat 2, an annular groove is formed in one end of the sleeve ring 603 close to the guide column 1, a locking arc plate 604 is slidably connected in the annular groove, the locking arc plate 604 comprises a brake pad matched with the guide column 1, a sliding table matched with the annular groove is fixedly connected on the brake pad, and a pressing groove is formed on the sliding table, a buffer reset device 10 is connected between the locking arc plate 604 and the output end of the electric push rod 9, a through hole matched with the plug bolt 703 is formed in the locking arc plate 604, a pressing groove matched with the pressurizing column 702 is formed in the through hole, a through hole matched with the plug bolt 703 is formed in the locking arc plate 604, and a pressing groove matched with the pressurizing column 702 is formed in the through hole, a through hole matched with the pressing groove is formed in the sleeve ring 603, when the fixed seat 2 needs to be fixed during lifting, the plug bolt 703 can pass through the through hole and be inserted into the insertion hole after the through hole is matched with the insertion hole on the guide column 1, when the fixed seat 2 needs to be fixed after being fixed, the pressurizing column 702 can pressurize the pressing groove, so that the locking arc plate 604 tightly holds the guide column 1. A plurality of fixing bolts are connected between the sleeve ring 603, the support plates 602 and the fixed seat 2

[0039] Please refer to Figure 5 The buffer reset device 10 comprises a fixed column 1001 connected with the movable end of the electric push rod 9, a movable column 1002 is inserted into the fixed column 1001, the movable column 1002 passes through the sleeve ring 603 and is fixedly connected with the locking arc plate 604, and a reset spring is connected between the movable column 1002 and the inner wall of the sleeve ring 603, so as to reset the locking arc plate 604 through the buffer reset device 10;

[0040] The hydraulic control system comprises a controller installed in the fixed seat 2, the hydraulic cylinder 4, the anchoring bolt 7, the hydraulic bolt 8 and the electric push rod 9 are signal connected with the controller, a pressure sensing belt is laid on the plug bolt 703, the pressure sensing belt comprises a conductive film connected with the plug bolt 703, and a plurality of uniformly distributed pressure sensing units are fixedly connected on the conductive film. The pressurizing column 702 is installed with a signal feedback unit matched with the pressure sensing unit, and the signal feedback unit is signal connected with the controller. After the plug bolt 703 is inserted into the insertion hole, the inner wall of the insertion hole and the plug bolt 703 interact, so that the pressure sensing unit at the corresponding position is stressed and activated. At this time, the signal feedback unit sends the pressure sensing signal to the controller, and the data processing module in the controller compares the similarities and differences of the activated pressure sensing signals on the plurality of plug bolts 703, to determine whether the insertion length of the plug bolt 703 is consistent;

[0041] When the pressure sensing signals fed back by the plurality of plug bolts 703 are consistent, it is determined that the insertion length of the plug bolt 703 is consistent;

[0042] When the pressure sensing signals fed back at multiple plugs 703 are inconsistent, it is determined that the insertion lengths of the plugs 703 are inconsistent, the inconsistent pressure sensing signals are taken as difference signal values, and the corresponding plugs 703 are marked, and the consistent pressure sensing signal values are taken as uniform setting values;

[0043] When it is determined that the insertion lengths of the plugs 703 are inconsistent, the controller further controls the hydraulic cylinders 701 connected with the marked plugs 703 to work to further push the plugs 703, and the pressure sensing signals fed back at the plugs 703 are further monitored until the pressure sensing signals fed back at the plugs 703 reach the uniform setting values;

[0044] In use, the multiple hydraulic cylinders 4, the anchor plugs 7 and the hydraulic plugs 8 are controlled to work, so that the lifting platform is lifted and fixed along the guide column 1. When the lifting platform is normally fixed or continuously lifted, the front ends of the plugs 703 of the anchor plugs 7 are inserted into the insertion holes in the guide column 1, so that the fixed seat 2 is fixed relative to the guide column 1.

[0045] When the lifting platform needs to be parked for a long time, the plugs 703 are further inserted into the insertion holes, so that the pressurizing columns 702 pressurize the dead arc plates 604, so that the dead arc plates 604 tightly hold the guide column 1, and the dead arc plates 604 assist in fixing the fixed seat 2.

[0046] During continuous lifting of the guide column 1, if the pressure sensing unit at the plug 703 detects that the plug 703 is not completely inserted or is excessively pressed, the electric push rod 9 can quickly pressurize the dead arc plate 604 to realize emergency holding, so that the multiple plugs 703 are not inserted out of synchronization to cause uneven load distribution, and the safety hazard in the lifting process is reduced.

[0047] The scheme can ensure that the plugs are stably and synchronously inserted into the insertion holes during lifting, and can assist in fixing and emergency holding of the lifting platform in an emergency, so that the load at the plugs is evenly distributed, and the safety of the lifting platform in use is ensured.

[0048] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical solutions and the improvement concept of the present application within the technical range disclosed by the present application, which should be covered by the protection scope of the present application.

Claims

1. A single-step hydraulic latch type lifting device comprising a guide column (1) with a plurality of evenly distributed insertion holes, characterized in that: The guide column (1) is provided with a fixed seat (2) and a floating ring (3), the lower end of the fixed seat (2) is fixedly connected with a support ring (6) matched with the guide column (1), a plurality of hydraulic cylinders (4) are connected between the floating ring (3) and the fixed seat (2), the floating ring (3) is fixedly connected with a mounting ring (5), two pairs of hydraulic bolts (8) matched with the guide column (1) are mounted on the mounting ring (5), two pairs of anchor bolts (7) matched with the guide column (1) are mounted on the fixed seat (2), the anchor bolt (7) comprises a hydraulic cylinder (701) fixedly connected with the fixed seat (2), a pressurizing column (702) is fixedly connected to the power output end of the hydraulic cylinder (701), a plug bolt (703) matched with the jack is fixedly connected to the pressurizing column (702), the support ring (6) comprises a sliding cylinder (601), a plurality of support plates (602) are connected between the sliding cylinder (601) and the fixed seat (2), a sleeve ring (603) is fixedly connected to the upper end of the sliding cylinder (601), a pair of electric push rods (9) are connected between the sleeve ring (603) and the fixed seat (2), a ring groove is formed in one end of the sleeve ring (603) close to the guide column (1), a locking arc plate (604) is slidably connected in the ring groove, a buffer resetter (10) is connected between the locking arc plate (604) and the output end of the electric push rod (9), a through hole matched with the plug bolt (703) is formed in the locking arc plate (604), and a pressure groove matched with the pressurizing column (702) is formed in the through hole. A hydraulic control system is further included, the hydraulic control system comprises a controller installed in the fixed seat (2), the hydraulic cylinder (4), the anchor bolt (7), the hydraulic bolt (8) and the electric push rod (9) are signal connected with the controller, and the signal feedback unit is electrically connected with the controller.

2. A single step hydraulic latch lift apparatus as claimed in claim 1, wherein: The buffer resetter (10) comprises a fixed column (1001) connected with the movable end of the electric push rod (9), a movable column (1002) is inserted into the fixed column (1001), the movable column (1002) penetrates through the sleeve ring (603) and is fixedly connected with the locking arc plate (604), and a reset spring is connected between the movable column (1002) and the inner wall of the sleeve ring (603).

3. A single step hydraulic latch lift apparatus as claimed in claim 1, wherein: A plurality of fixed bolts are connected between the sleeve ring (603) and the support plate (602) and the fixed seat (2).

4. A single step hydraulic latch lift apparatus as claimed in claim 1, wherein: A through hole matched with the plug bolt (703) is formed in the locking arc plate (604), a pressure groove matched with the pressurizing column (702) is formed in the through hole, and a through hole matched with the pressure groove is formed in the sleeve ring (603).

5. A single step hydraulic latch lift apparatus as claimed in claim 1, wherein: The hydraulic bolt (8) is an electric push rod with a clamping bolt matched with the jack.

6. A single step hydraulic latch lift apparatus as claimed in claim 1, wherein: The locking arc plate (604) comprises a brake pad matched with the guide column (1), the brake pad is fixedly connected with a sliding table matched with the annular groove, and a pressing groove is arranged on the sliding table.

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