Speed-adjustable hydraulic elevator

Abstract

The utility model discloses a speed-adjustable hydraulic elevator which comprises a base and a lifting plate, a scissor arm is arranged between the base and the lifting plate, a hydraulic telescopic rod is arranged at the bottom of the scissor arm, a hydraulic pump is arranged at the top end of the base, a control motor is arranged on one side of the hydraulic pump, and the speed-adjustable hydraulic elevator further comprises an oil receiving disc, a supporting block, a connecting assembly, a mounting block and a limiting plate. The oil receiving disc is used for receiving leaked hydraulic oil, and the supporting block is used for supporting the oil receiving disc. By means of the design of the oil receiving disc, the supporting block, the mounting block and the connecting assembly, the oil receiving disc is supported at the bottom end of the base and covers the portion under the area of the base, the hydraulic pump and the control motor, when the hydraulic elevator is used and hydraulic oil leaks, the hydraulic oil can drip into the oil receiving disc, pollution to the surrounding environment is avoided, and the hydraulic elevator is safe and reliable. And meanwhile, a worker can quickly search for a leaking point position by observing the dripping position of the hydraulic oil in the oil receiving disc, so that the leaking point can be repaired.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic lifts, in particular to a speed-adjustable hydraulic lift. Background Art

[0002] A hydraulic lift is a device used to lift objects. It uses a hydraulic telescopic rod to drive the scissor arm to retract and lift, thereby raising the top plate.

[0003] In order to control the lifting speed, the existing method is to connect the motor with the hydraulic pump, and drive the hydraulic pump to work through the rotation of the motor. The hydraulic pump absorbs the hydraulic oil in the oil tank and pressurizes it into the hydraulic rod, so that the output end of the hydraulic rod is extended. By controlling the rotation speed of the motor, the output oil pressure of the hydraulic pump is controlled to achieve the speed control of the elevator. During use, due to the aging of the oil pipeline, oil leakage will occur at the connection of the oil pipeline, polluting the surrounding environment. Utility Model Content

[0004] The purpose of this utility model is to provide a speed-adjustable hydraulic lift to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a speed-adjustable hydraulic lift, comprising a base and a lifting plate, a scissor arm for raising and lowering the lifting plate being provided between the base and the lifting plate, a hydraulic telescopic rod for driving the scissor arm being provided at the bottom of the scissor arm, a hydraulic pump for delivering hydraulic oil to the hydraulic telescopic rod being provided at the top of the base, a control motor for controlling the oil delivery speed of the hydraulic pump being provided on one side of the hydraulic pump, and further comprising:

[0006] An oil receiving pan is provided at the bottom end of the base and is used to receive leaked hydraulic oil;

[0007] Support blocks are provided on both sides of the oil receiving pan and are used to support the oil receiving pan;

[0008] A connecting assembly, which is arranged on the side of the oil receiving pan and is used to lock the position of the oil receiving pan;

[0009] A mounting block, which is provided at the bottom end of the support block and is used for installing the connection assembly;

[0010] A limit plate is provided at the bottom end of the base and is used to limit the displacement of the oil receiving pan.

[0011] Preferably, the bottom end of the base is fixedly connected to the top end of the support block, and a slot for inserting the side of the oil pan is provided on one side of the support block.

[0012] Preferably, the vertical cross-section of the support block is L-shaped, the oil receiving pan is T-shaped, and an oil receiving groove is provided at the top of the oil receiving pan.

[0013] Preferably, the limiting plate is arranged on a side of the bottom end of the base away from the hydraulic pump, and the top end of the limiting plate is fixedly connected to the bottom end of the base.

[0014] Preferably, the bottom end of the support block is fixedly connected to the top end of the mounting block, the connecting assembly includes an insertion block and a locking block, a mounting groove for inserting the insertion block is opened on one side of the support block, and a locking hole for inserting the locking block is opened at the bottom end of the inner wall of the mounting groove.

[0015] Preferably, the vertical cross-section of the locking block is a right triangle, and the inclined surface of the locking block faces the side close to the limiting plate.

[0016] Preferably, a cavity is provided inside the plug block, a socket is provided at the bottom end of the inner wall of the cavity, the locking block is connected to the socket, a baffle is fixedly connected to the top of the locking block, and a spring is provided at the top of the baffle for pushing the baffle.

[0017] The technical effects and advantages of this utility model are:

[0018] The utility model utilizes the design of an oil receiving pan, a supporting block, a mounting block and a connecting assembly. The oil receiving pan is supported on the bottom end of the base through the supporting block, covering the area directly below the base, the hydraulic pump and the control motor. Therefore, when the hydraulic lift is in use, when hydraulic oil leaks, it will drip into the inside of the oil receiving pan and will not cause pollution to the surrounding environment. At the same time, the staff can quickly find the leakage point by observing the position of the hydraulic oil dripping inside the oil receiving pan and repair the leakage point. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the schematic diagrams of the overall three-dimensional structure of the utility model.

[0020] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure.

[0021] Figure 3 This is the second schematic diagram of the overall three-dimensional structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the base and scissor arms of the utility model.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the oil receiving pan and the connecting assembly of the utility model.

[0024] Figure 6This is a schematic diagram of the cross-sectional structure of the connection between the connecting component and the mounting block of the utility model.

[0025] In the figure: 1. Base; 2. Lifting plate; 3. Scissor arm; 4. Hydraulic telescopic rod; 5. Hydraulic pump; 6. Control motor; 7. Oil pan; 8. Support block; 9. Mounting block; 10. Connecting assembly; 101. Insert block; 102. Locking block; 103. Baffle; 104. Spring; 11. Limit plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides Figure 1-6 The adjustable speed hydraulic lift shown in the figure includes a base 1 and a lifting plate 2. A scissor arm 3 for lifting the lifting plate 2 is provided between the base 1 and the lifting plate 2. A hydraulic telescopic rod 4 for driving the scissor arm 3 is provided at the bottom of the scissor arm 3. A hydraulic pump 5 for supplying hydraulic oil to the hydraulic telescopic rod 4 is provided at the top of the base 1. A control motor 6 for controlling the oil supply speed of the hydraulic pump 5 is provided on one side of the hydraulic pump 5. The lift also includes:

[0028] The oil receiving pan 7 is provided at the bottom end of the base 1 and is used to receive leaked hydraulic oil;

[0029] Support blocks 8 are provided on both sides of the oil receiving pan 7 and are used to support the oil receiving pan 7;

[0030] The connecting assembly 10 is provided on the side of the oil receiving pan 7 and is used to lock the position of the oil receiving pan 7;

[0031] Mounting block 9, which is provided at the bottom end of the support block 8 and is used for installing the connection assembly 10;

[0032] The limiting plate 11 is arranged at the bottom end of the base 1 and is used to limit the displacement of the oil receiving pan 7.

[0033] Specifically, the base 1, lifting plate 2, scissor arm 3, hydraulic telescopic rod 4, hydraulic pump 5 and control motor 6 constitute the existing hydraulic lift. The working principle is to drive the hydraulic pump 5 through the control motor 6. The hydraulic pump 5 generates pressure oil to push the piston rod of the hydraulic telescopic rod 4 to move back and forth, thereby realizing the output of linear push and pull force. When the control motor 6 receives an instruction, the control motor 6 starts to rotate, driving the hydraulic pump 5 to work. The hydraulic pump 5 absorbs the hydraulic oil in the oil tank and presses it to the hydraulic telescopic rod 4. The piston in the hydraulic telescopic rod 4 is displaced with the flow of pressure oil, driving the connected scissor arm 3 to perform corresponding movement. By controlling the speed of the control motor 6, the output oil pressure of the hydraulic pump 5 is controlled, and the lifting speed of the lifting plate 2 is controlled.

[0034] Specifically, the bottom end of the base 1 is fixedly connected to the top end of the support block 8, and a slot for inserting the side of the oil receiving pan 7 is provided on one side of the support block 8. The vertical cross-section of the support block 8 is L-shaped, the oil receiving pan 7 is T-shaped, and an oil receiving groove is provided on the top end of the oil receiving pan 7. The limit plate 11 is arranged on the side of the bottom end of the base 1 away from the hydraulic pump 5, and the top end of the limit plate 11 is fixedly connected to the bottom end of the base 1.

[0035] Furthermore, the oil receiving pan 7 is made of stainless steel, and its silver-white color can form a color difference with the hydraulic oil, which is convenient for direct observation by the staff. Two support blocks 8 are provided, which are symmetrically arranged on both sides of the bottom end of the base 1. The top of the support block 8 is welded and fixed to the bottom end of the base 1, and the slots of the support block 8 are relatively opened. Through the relatively arranged slots, the two side edges of the oil receiving pan 7 can be inserted into the slots. The oil receiving pan 7 is supported by the support blocks 8 and connected to the oil receiving pan 7, so that the oil receiving pan 7 is installed at the bottom end of the base 1. The area of ​​the oil receiving pan 7 can cover the hydraulic telescopic rod 4, the hydraulic pump 5, the control motor 6 and the interconnected pipes, so that when a leakage point occurs, the hydraulic oil will drip into the oil receiving groove of the oil receiving pan 7 and will not drip to the ground, reducing pollution to the surrounding environment. The top of the limit plate 11 is welded and fixed to the bottom end of the base 1, thereby limiting the displacement of the oil receiving pan 7.

[0036] Specifically, the bottom end of the supporting block 8 is fixedly connected to the top end of the mounting block 9, and the connecting assembly 10 includes an insert block 101 and a locking block 102. A mounting groove for inserting the insert block 101 is provided on one side of the supporting block 8, and a locking hole for inserting the locking block 102 is provided at the bottom end of the inner wall of the mounting groove. The vertical cross-section of the locking block 102 is a right triangle, and the inclined surface of the locking block 102 faces the side close to the limit plate 11. A cavity is provided inside the insert block 101, and a socket is provided at the bottom end of the inner wall of the cavity. The locking block 102 is inserted and connected with the socket, and a baffle 103 is fixedly connected to the top end of the locking block 102, and a spring 104 for pushing the baffle 103 is provided at the top end of the baffle 103.

[0037] Furthermore, two mounting blocks 9 are symmetrically arranged, respectively located at one end of the bottom end of the support block 8 away from the limit plate 11, and the contact part between the support block 8 and the mounting block 9 is welded and fixed. The size of the mounting slot is adapted to the size of the plug block 101, and the locking hole is the same size as the plug hole. The contact part between the plug block 101 and the oil receiving pan 7 is welded and fixed, and the size of the baffle 103 is 1.2 times the size of the slot. The spring 104 and the baffle 103 are both arranged in the cavity, and the spring 104 is always in a compressed state in the cavity. The contact part between the locking block 102 and the baffle 103 is welded and fixed. When the oil receiving pan 7 is pushed into the slot of the support block 8, the inclined surface of the locking block 102 will be squeezed by the inner wall of the mounting slot until the locking block 102 moves into the locking hole. The restoring force of the spring 104 will push the baffle 103, driving the locking block 102 to insert into the locking hole, restricting the oil receiving pan 7 from moving out of the slot of the support block 8, and completing the installation of the oil receiving pan 7.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A speed-adjustable hydraulic lift, comprising a base (1) and a lifting plate (2), wherein a scissor arm (3) for lifting the lifting plate (2) is provided between the base (1) and the lifting plate (2), a hydraulic telescopic rod (4) for driving the scissor arm (3) is provided at the bottom of the scissor arm (3), a hydraulic pump (5) for delivering hydraulic oil to the hydraulic telescopic rod (4) is provided at the top of the base (1), and a control motor (6) for controlling the oil delivery speed of the hydraulic pump (5) is provided on one side of the hydraulic pump (5), characterized in that: Also includes: An oil receiving pan (7), the oil receiving pan (7) being arranged at the bottom end of the base (1), and the oil receiving pan (7) being used to receive leaked hydraulic oil; Support blocks (8), the support blocks (8) are arranged on both sides of the oil receiving pan (7), and the support blocks (8) are used to support the oil receiving pan (7); A connecting assembly (10), the connecting assembly (10) being arranged on a side of the oil receiving pan (7), and the connecting assembly (10) being used to lock the position of the oil receiving pan (7); A mounting block (9), the mounting block (9) being arranged at the bottom end of the support block (8), and the mounting block (9) being used for mounting the connection assembly (10); A limit plate (11), the limit plate (11) is arranged at the bottom end of the base (1), and the limit plate (11) is used to limit the displacement of the oil receiving pan (7).

2. The speed-adjustable hydraulic lift according to claim 1, characterized in that: The bottom end of the base (1) is fixedly connected to the top end of the support block (8), and a slot for inserting the side of the oil pan (7) is provided on one side of the support block (8).

3. The speed-adjustable hydraulic lift according to claim 2, characterized in that: The vertical cross-section of the support block (8) is L-shaped, the oil receiving pan (7) is T-shaped, and an oil receiving groove is provided at the top of the oil receiving pan (7).

4. The speed-adjustable hydraulic lift according to claim 1, characterized in that: The limiting plate (11) is arranged on a side of the bottom end of the base (1) away from the hydraulic pump (5), and the top end of the limiting plate (11) is fixedly connected to the bottom end of the base (1).

5. The speed-adjustable hydraulic lift according to claim 1, characterized in that: The bottom end of the support block (8) is fixedly connected to the top end of the mounting block (9), and the connecting assembly (10) comprises an insert block (101) and a locking block (102). A mounting groove for inserting the insert block (101) is provided on one side of the support block (8), and a locking hole for inserting the locking block (102) is provided at the bottom end of the inner wall of the mounting groove.

6. The speed-adjustable hydraulic lift according to claim 5, characterized in that: The vertical cross-section of the locking block (102) is a right triangle, and the inclined surface of the locking block (102) faces the side close to the limiting plate (11).

7. The speed-adjustable hydraulic lift according to claim 5, characterized in that: A cavity is provided inside the insert block (101), a socket is provided at the bottom end of the inner wall of the cavity, the locking block (102) is connected to the socket through insertion, a baffle (103) is fixedly connected to the top end of the locking block (102), and a spring (104) for pushing the baffle (103) is provided at the top end of the baffle (103).

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