Novel jacking device

Abstract

The utility model belongs to the technical field of jacking devices, and particularly relates to a novel jacking device which comprises a mounting frame and a lifting part, the mounting frame comprises a base and a guide rod, the lifting part is arranged on the guide rod, a lifting plate, a climbing mechanism and a lifting grip are arranged on the lifting part, and the lifting grip is pressed to drive the climbing mechanism so as to control the lifting part to move upwards along the guide rod. The lifting part is further provided with a locking mechanism, the locking mechanism is provided with a micro-motion piece, the micro-motion piece is arranged on the guide rod in a sleeving mode, a reset spring is arranged between the micro-motion piece and the locking mechanism, the two ends of the reset spring abut against the lower surface of the micro-motion piece and the upper surface of the locking mechanism respectively, the micro-motion piece is provided with an adjusting rod, and the micro-motion piece is pressed to be in an inclined state relative to the guide rod. At the moment, the micro-moving piece and the guide rod are in a locking state, the micro-moving piece drives the adjusting rod to move downwards to drive the locking mechanism and the adjusting rod to release the locking state, and therefore downward fine adjustment of the lifting part is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of height-lifting device, and particularly relates to a novel height-lifting device. BACKGROUND

[0002] When indoor and outdoor decoration of a building is carried out, the work objects such as a suspended cabinet, a window sill and wall bricks often need to be lifted to a certain height, especially in the process of pasting ceramic tiles, in order to position accurately and maintain stability, a height-lifting device is usually used to assist support. Compared with the temporary padding of broken ceramic tiles or small wooden sticks, the height-lifting device is not easy to fall off, is stable, and the height is suitable. Therefore, the height-lifting device solves the above problems. As long as the height is adjusted, the work object can be placed and supported below. However, the height-lifting device on the market has only one control key. When a worker wants to adjust the lifting height of the work object downward, the control key has to be pressed. Since the work object is placed on the height-lifting device, the work object lifted will quickly drop under the weight of the object when the worker presses the control key. The worker cannot fine-tune the height at which the work object is to be lowered, and the rapid lowering of the work object will affect the safety of the worker. SUMMARY

[0003] The utility model aims at providing a height-lifting device which is simple in structure and can fine-tune the lowering distance of a work object.

[0004] The utility model is achieved in the following way:

[0005] A novel height-lifting device comprises a mounting frame and a lifting part arranged on the mounting frame. The mounting frame comprises a base and a guide rod arranged on the base. The lifting part is arranged on the guide rod. The lifting part is provided with a lifting plate, a climbing mechanism and a lifting handle for controlling the climbing mechanism. Pressing the lifting handle drives the climbing mechanism to control the lifting part to move upward along the guide rod. The lifting part is also provided with a locking mechanism which is clamped with the guide rod. The locking mechanism limits the downward movement of the lifting part. The locking mechanism is provided with a micro-motion sheet. The micro-motion sheet is sleeved on the guide rod. A return spring is arranged between the micro-motion sheet and the locking mechanism. The two ends of the return spring are respectively abutted against the lower surface of the micro-motion sheet and the upper surface of the locking mechanism. The micro-motion sheet is provided with an adjusting rod. The adjusting rod can abut against the upper surface of the locking mechanism. Pressing the micro-motion sheet is in an inclined state relative to the guide rod. At this time, the micro-motion sheet and the guide rod are in a locked state. The micro-motion sheet drives the adjusting rod to move downward to drive the locking mechanism and the adjusting rod to be unlocked, thereby realizing the fine adjustment of the downward movement of the lifting part.

[0006] Further, the top end of the lifting part is provided with a mounting table, the mounting table is provided with a mounting rod, one end of the micro-motion sheet is provided with a mounting hole, the other end of the micro-motion sheet is provided with a pressing part, the mounting rod passes through the mounting hole and is connected with the mounting table, the top end of the mounting rod is provided with an abutting part, a pushing spring is arranged between the abutting part and the micro-motion sheet, the pushing spring is sleeved on the mounting rod, and the two ends of the pushing spring are respectively abutted with the abutting part and the micro-motion sheet.

[0007] Further, a threaded hole is formed in the micro-motion sheet, an external thread is arranged on the outer wall of the adjusting rod, and the adjusting rod is arranged in the threaded hole and is threadedly connected with the micro-motion sheet.

[0008] Further, a limiting piece is arranged on the side surface of the micro-motion sheet, a connecting hole is formed in the side surface of the micro-motion sheet, a fixing hole is formed in the limiting piece, a connecting rod is arranged in the connecting hole and the fixing hole, and a clamping hook part is integrally formed at the bottom of the limiting piece and is located directly below the locking mechanism.

[0009] Further, the locking mechanism comprises a locking sheet and a locking spring, the locking sheet is sleeved on the guide rod, a clamping groove is formed in the mounting table, one end of the locking sheet is arranged in the clamping groove and is clamped with the mounting table, the clamping hook part is located directly below the locking sheet, the two ends of the locking spring are respectively abutted with the top end of the lifting part and the lower surface of the locking sheet, and the locking spring pushes the locking sheet to be in an inclined state relative to the guide rod.

[0010] Further, a mounting space is formed in the middle part of the lifting part, the climbing mechanism is arranged in the mounting space, a through hole penetrating through the mounting space is formed in the lifting part, the guide rod is arranged in the through hole, the climbing mechanism comprises a climbing block and a climbing spring, the climbing block and the climbing spring are both sleeved on the rod body of the guide rod located in the mounting space, the two ends of the climbing spring are respectively abutted with the bottom in the mounting space and the lower surface of the climbing block, a control hole communicating with the mounting space is formed in the side surface of the lifting part, one end of the lifting handle is provided with an abutting block, one end of the abutting block passes through the control hole and is exposed to the mounting space, and the lower surface of the abutting block is abutted with the upper surface of the climbing block.

[0011] Further, rotating holes are formed at the two sides of the through hole, a through hole is formed in the middle part of the abutting block, and rotating rods are arranged in the rotating holes and the through hole.

[0012] Further, a bottom hole is formed in the bottom of the lifting part, a plate hole is formed in the lifting plate, and a fixing rod is arranged in the plate hole and the bottom hole.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] The utility model discloses a tool for lifting work object to a certain height when workers decorate indoor and outdoor of building, including base and setting on the base guide rod, the guide rod is provided with lifting part, and the bottom of lifting part has the lifting plate for lifting work object and the climbing mechanism and the lifting handle of control climbing mechanism, and the worker needs to place the lifting plate on the lifting part to the lower surface of work object before using the height lifter, at this time, the worker can control the driving climbing mechanism operation through pressing the lifting handle, finally, the climbing mechanism will drive the lifting part to move a certain distance along the guide rod, and the lifting plate on the lifting part will move a certain distance upwards synchronously with the lifting part, so that the work object on the lifting plate can be lifted smoothly by the lifting plate, and the worker can press the lifting handle repeatedly according to actual demand, so that the work object is lifted to the corresponding position, and the locking mechanism is further provided on the lifting part and is connected with the guide rod, and the locking mechanism is inclined upwards relative to the guide rod, so that the locking mechanism and the guide rod are in the complete locking state, when the lifting part moves upwards, the situation that the lifting part falls to the initial position under the action of the gravity of work object can be avoided, and the height of work object after lifting can be kept, and relative to the common height lifter on the market, only one control key is provided, when the worker wants to adjust the lifting height of work object downwards, the work object can only be moved downwards by pressing the control key, because the work object is placed on the height lifter, when the worker presses the control key, the lifted object will quickly drop under the weight of work object, the worker cannot fine tune the height of work object to the desired height, and the quick drop of work object will affect the safety of the worker, the utility model is provided with the microswitch on the locking mechanism, the microswitch is sleeved on the guide rod, and the bottom of microswitch has the adjusting rod, when the worker wants to fine tune the lifting height of work object downwards, the worker presses the microswitch, one end of microswitch will rotate downwards to the inclined state relative to the guide rod and is connected with the guide rod, at this time, the microswitch and the guide rod are in the locking state, in the process that the microswitch rotates relative to the guide rod to the locking state, the microswitch will drive the adjusting rod to move downwards, so that the bottom of adjusting rod contacts with the upper surface of locking mechanism, at this time, the microswitch and the guide rod are not in the locking state, when the bottom of adjusting rod contacts with the upper surface of locking mechanism, the adjusting rod will push the locking mechanism to incline slightly downwards after the microswitch is pressed continuously, so that the locking mechanism and the guide rod are in the complete locking state, at this time, the lifting part will move a certain distance downwards, so that the work object on the lifting plate moves a certain distance downwards with the lifting part, so that the fine tuning of work object downwards is realized, and the worker can fine tune the work object to the desired height, and because the two ends of reset spring are respectively abutted on the lower surface of microswitch and the upper surface of locking mechanism, when the worker presses the microswitch, the reset spring is in the compressed state, at this time, the worker releases the microswitch, and the compressed reset spring will push the microswitch to reset to the initial position automatically, so that the worker does not need to reset the microswitch manually, and unnecessary trouble is reduced.The worker can directly down-adjust the lifting height of the work object by pressing the micro-adjusting sheet next time, and the worker can realize the down-adjustment of the lifting height of the work object only by one micro-adjusting sheet, so that the structure of the whole height lifter is simpler, and the operation is simple, fast and convenient, and when the work object is installed, the worker can press the locking mechanism to release the clamping and locking state of the locking mechanism and the guide rod, so that the lifting part can quickly descend. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the utility model.

[0016] Figure 2 is a perspective view of the utility model.

[0017] Figure 3 is an explosion view of the lifting part and the guide rod of the utility model.

[0018] Figure 4 is a structural schematic view of the lifting part and the climbing mechanism and the locking mechanism of the utility model.

[0019] Figure 5 is an explosion view of the lifting part and the locking mechanism of the utility model.

[0020] Figure 6 is an explosion view of the micro-adjusting sheet and the locking sheet of the utility model.

[0021] Figure 7 is a perspective view of the micro-adjusting sheet and the limiting piece of the utility model.

[0022] Figure 8 is an explosion view of the micro-adjusting sheet and the limiting piece and the mounting rod of the utility model.

[0023] Figure 9 is an explosion view of the micro-adjusting sheet and the adjusting rod of the utility model.

[0024] Figure 10 is an explosion view of the lifting part and the climbing mechanism and the lifting handle of the utility model.

[0025] Figure 11 is an explosion view of the lifting part and the lifting handle of the utility model.

[0026] Figure 12 is an explosion view of the lifting part and the lifting plate of the utility model.

[0027] Meaning represented by the reference signs in the drawing:

[0028] 1-lifting part; 2-base; 3-guide rod; 4-lifting plate; 5-climbing mechanism; 6-lifting handle;

[0029] 7 - locking mechanism; 8 - micro-motion piece; 9 - return spring; 10 - adjusting rod; 11 - mounting table;

[0030] 12 - mounting rod; 13 - mounting hole; 14 - pressing part; 15 - abutting part; 16 - pushing spring;

[0031] 17 - limiting piece; 18 - connecting hole; 19 - fixing hole; 20 - connecting rod; 21 - hook part;

[0032] 22 - locking piece; 23 - locking spring; 24 - clamping groove; 25 - mounting space; 26 - through hole;

[0033] 27 - climbing block; 28 - climbing spring; 29 - control hole; 30 - abutting block; 31 - rotating hole;

[0034] 32 - perforation; 33 - rotating rod; 34 - fixed handle; 37 - bottom hole; 38 - plate hole;

[0035] 39 - fixed rod; 40 - threaded hole. DETAILED DESCRIPTION

[0036] The utility model will be described further in combination with specific embodiments:

[0037] The utility model discloses a tool for lifting work object to a certain height when the worker is decorating indoor and outdoor of building, including base 2 and setting on the base 2 guide rod 3, the guide rod 3 is provided with lifting portion 1, and the bottom of lifting portion 1 has lifting plate 4 for lifting work object and climbing mechanism 5 and the lifting handle 6 of control climbing mechanism 5, the worker needs to place lifting plate 4 on lifting portion 1 to the lower surface of work object before using the height device, at this time, the worker can control the drive climbing mechanism 5 to run by pressing lifting handle 6, finally, climbing mechanism 5 will drive lifting portion 1 to move a certain distance along guide rod 3, and lifting plate 4 on lifting portion 1 will move a certain distance upwards synchronously with lifting portion 1, thereby making work object on lifting plate 4 be lifted smoothly by lifting plate 4, and the worker can press lifting handle 6 repeatedly according to actual demand, thereby making work object be lifted to corresponding position, and locking mechanism 7 that is connected with guide rod 3 is further provided on lifting portion 1, locking mechanism 7 is inclined upwards relative to guide rod 3, thereby making locking mechanism 7 and guide rod 3 be in complete locking state, when lifting portion 1 moves upwards and completes, can avoid the situation that lifting portion 1 falls to initial position under the action of gravity of work object, makes the height of work object after lifting can be kept, relative to the height device on market only one control key, when the worker wants to adjust the lifting height of work object downwards, can only make work object move downwards by pressing control key, since the work object is placed on the height device, when the worker presses control key, the lifted article will drop rapidly under the weight of work object, the worker can not fine tune to the height that work object drops, and the rapid drop of work object can cause influence to the safety of worker, the utility model is provided with microswitch 8 on locking mechanism 7, microswitch 8 is sleeved on guide rod 3, and the bottom of microswitch 8 has adjusting rod 10, when the worker wants to fine tune the lifting height of work object downwards, the worker presses microswitch 8, one end of microswitch 8 will be rotated downwards to the inclined state relative to guide rod 3 and is connected with guide rod 3, at this time, microswitch 8 and guide rod 3 enter locking state, in the process that microswitch 8 rotates relative to guide rod 3 to locking state, microswitch 8 will drive adjusting rod 10 to move downwards, thereby making the bottom of adjusting rod 10 contact with the upper surface of locking mechanism 7, at this time, microswitch 8 and guide rod 3 have not entered locking state, when the bottom of adjusting rod 10 contacts with the upper surface of locking mechanism 7, continues to press microswitch 8, adjusting rod 10 will push locking mechanism 7 to incline slightly downwards, thereby making locking mechanism 7 and guide rod 3 remove complete locking state, at this time, lifting portion 1 will move a certain distance downwards, thereby making work object on lifting plate 4 move a certain distance downwards with lifting portion 1, thereby realizing the fine tuning of work object downwards, making the worker can fine tune work object to the expected height downwards, and since the two ends of reset spring 9 are respectively on the lower surface of microswitch 8 and the upper surface of locking mechanism 7,When the worker presses the micro-motion sheet 8, the return spring 9 will be in a compressed state, at this time, the worker releases the micro-motion sheet 8, the compressed return spring 9 will push the micro-motion sheet 8 to automatically reset to the initial position, without the worker manually resetting the micro-adjustment sheet, reducing unnecessary trouble, so that the worker can directly adjust the height of the work object by pressing the micro-adjustment sheet next time, and the worker can only realize the downward micro-adjustment of the height of the work object by pressing the micro-adjustment sheet, so that the structure of the heighter is more simple, and the operation is simple, fast and convenient, and when the work object is installed, the worker can press the locking mechanism 7 to make the locking mechanism 7 and the guide rod 3 disengage the locking state, so that the lifting part 1 can quickly descend.

[0038] Preferably, the top end of the lifting part 1 is provided with a mounting table 11, the mounting table 11 is provided with a mounting rod 12, one end of the micro-motion sheet 8 is provided with a mounting hole 13, the other end of the micro-motion sheet 8 is provided with a pressing part 14, the mounting rod 12 passes through the mounting hole 13 and is connected with the mounting table 11, the top end of the mounting rod 12 is provided with an abutting part 15, the abutting part 15 and the micro-motion sheet 8 are provided with a pushing spring 16, the pushing spring 16 is sleeved on the mounting rod 12, and the two ends of the pushing spring 16 are respectively abutted with the lower surface of the abutting part 15 and the lower surface of the top end of the micro-motion sheet 8; the mounting rod 12 passes through the mounting hole 13 at one end of the micro-motion sheet 8 and is fixedly connected with the mounting table 11 at the top end of the lifting part 1, and the other end of the micro-motion sheet 8 is provided with the pressing part 14, the setting of the pressing part 14 enables the worker to press the micro-motion sheet 8, the worker only needs to press the pressing part 14 to control the micro-motion sheet 8 to rotate relative to the guide rod 3, at this time, one end of the micro-motion sheet 8 will be raised, because the two ends of the pushing spring 16 are respectively abutted with the lower surface of the abutting part 15 at the top end of the mounting rod 12 and the lower surface of the top end of the micro-motion sheet 8, when one end of the micro-motion sheet 8 is raised, the pushing spring 16 will be in a compressed state, when the worker releases the pressing part 14, the compressed pushing spring 16 will push the micro-motion sheet 8 to reset, so that the micro-motion sheet 8 can return to the initial position under the cooperation of the pushing spring 16 and the return spring 9, so that the worker can directly control the downward micro-adjustment of the work object by pressing the pressing part 14 next time, because the micro-motion sheet 8 is not fixedly connected with the guide rod 3, the setting of the mounting rod 12 and the pushing spring 16 can also avoid the micro-motion sheet 8 from being separated from the guide rod 3 during transportation of the heighter.

[0039] Preferably, the micro-motion piece 8 is provided with a threaded hole 40, the adjusting rod 10 is provided with external threads, and the adjusting rod 10 is arranged in the threaded hole 40 and is in threaded connection with the micro-motion piece 8. Since the adjusting rod 10 is in threaded connection with the micro-motion piece 8 through the external threads on the outer wall of the adjusting rod 10 and the threaded hole 40, when the worker rotates the adjusting rod 10, the distance between the bottom end of the adjusting rod 10 and the upper surface of the locking piece 22 changes, and the distance between the two is different. After the worker presses the micro-motion piece 8, the distance of the work object fine adjustment is also different. The worker can adjust the distance between the bottom end of the micro-motion piece 8 and the upper surface of the locking piece 22 according to his own needs, increase the practicability of the height lifting device, and make the height lifting device meet the needs of the worker.

[0040] Preferably, the side surface of the micro-motion piece 8 is provided with a limiting piece 17, the side surface of the micro-motion piece 8 is provided with a connecting hole 18, the limiting piece 17 is provided with a fixing hole 19, the connecting hole 18 and the fixing hole 19 are provided with a connecting rod 20, the bottom of the limiting piece 17 is integrally formed with a hook part 21, and the hook part 21 is located directly below the locking mechanism 7. The limiting piece 17 is fixedly installed on the side surface of the micro-motion piece 8 through the connecting rod 20 in the connecting hole 18 and the fixing hole 19, and the number of the connecting hole 18, the fixing hole 19 and the connecting rod 20 is two. The limiting piece 17 can limit the rotation of the limiting piece 17 on the side surface of the micro-motion piece 8, so that the hook part 21 at the bottom of the limiting piece 17 is always located directly below the locking piece 22. After the worker presses one end of the locking piece 22 away from the clamping state of the guide rod 3, when the lower surface of the locking piece 22 abuts against the hook part 21, the locking piece 22 and the guide rod 3 are in a completely unlocked state, and the locking piece 22 cannot be pressed downward at this time. The locking piece 22 avoids re-entering the clamping state relative to the guide rod 3, so that the lifting part 1 can quickly descend.

[0041] Preferably, the locking mechanism 7 comprises a locking piece 22 and a locking spring 23 sleeved on the guide rod 3, the mounting table 11 is provided with a clamping groove 24, one end of the locking piece 22 is arranged in the clamping groove 24 and clamped with the mounting table 11, the clamping hook part 21 is located directly below the locking piece 22, and the two ends of the locking spring 23 are respectively abutted against the top end of the lifting part 1 and the lower surface of the locking piece 22, the locking spring 23 pushes the locking piece 22 to be in an inclined state relative to the guide rod 3; the locking piece 22 and the locking spring 23 are sleeved on the guide rod 3, so that the locking piece 22 and the locking spring 23 cannot be moved at will, the locking spring 23 can smoothly push the locking piece 22 to be in an upward inclined state relative to the guide rod 3, the locking piece 22 and the guide rod 3 can always be kept in a locked state, when the worker presses the other end of the locking piece 22, the locking piece 22 rotates downward and is perpendicular to the guide rod 3, and the locking piece 22 makes the locking spring 23 in a compressed state, when the lifting part 1 is quickly lowered, the worker releases the locking piece 22, the compressed locking spring 23 pushes the locking piece 22 to be in a state of being inclined upward and clamped with the guide rod 3 again, so that the worker can use the height lifter to lift the work object next time, and the work object lifted is kept at a lifting height, so that the worker can normally use the height lifter.

[0042] Preferably, the middle part of the lifting part 1 forms a mounting space 25, the climbing mechanism 5 is arranged in the mounting space 25, a through hole 26 is arranged on the lifting part 1 and penetrates the mounting space 25, the guide rod 3 is arranged in the through hole 26, the climbing mechanism 5 comprises a climbing block 27 and a climbing spring 28, the climbing block 27 and the climbing spring 28 are sleeved on the rod body of the guide rod 3 in the mounting space 25, the two ends of the climbing spring 28 abut against the bottom in the mounting space 25 and the lower surface of the climbing block 27 respectively, a control hole 29 is arranged on the side surface of the lifting part 1 and communicates with the mounting space 25, one end of the lifting handle 6 is provided with an abutting block 30, one end of the abutting block 30 penetrates through the control hole 29 and is exposed in the mounting space 25, and the lower surface of the abutting block 30 abuts against the upper surface of the climbing block 27; the arrangement of the control hole 29 enables the abutting block 30 at one end of the lifting handle 6 to smoothly penetrate through the control hole 29 and be exposed in the mounting space 25, and the lower surface of the abutting block 30 abuts against the upper surface of the climbing block 27; when the worker wants to lift the work object on the lifting plate 4, the worker presses the lifting handle 6, so that the climbing block 27 is in a downward inclined state and is locked with the guide rod 3, at this time, the worker continues to press the lifting handle 6, so that the lifting part 1 as a whole moves upward along the guide rod 3, so that the work object moves upward together with the lifting plate 4 on the lifting part 1 by a distance, and the climbing spring 28 is in a compressed state after the climbing block 27 is inclined downward; when the worker releases the lifting handle 6, the compressed climbing spring 28 pushes the climbing block 27 to reset, and the climbing block 27 drives the lifting handle 6 to reset together, so that the worker can continue to control the lifting part 1 to move upward by pressing the lifting handle 6, so that the work object can reach the expected height of the worker through the reciprocating movement.

[0043] Preferably, rotation holes 31 are arranged on both sides of the through hole 26, a through hole 32 is arranged in the middle part of the abutting block 30, and a rotating rod 33 is arranged in the rotation holes 31 and the through hole 32; a fixed handle 34 is arranged on the lifting part 1 and located above the lifting handle 6; the rotating rod 33 penetrates through the rotation holes 31 on both sides of the through hole 26 and the through hole 32 in the middle part of the abutting block 30, so that the abutting block 30 can rotate in the through hole 26; when the worker presses the lifting handle 6, the worker can control the lifting part 1 to move upward smoothly, and the fixed handle 34 on the lifting part 1 is located above the lifting handle 6, so that the worker can press the lifting handle 6 with the cooperation of the fixed handle 34, thereby making the worker press the lifting handle 6 more easily and labor-saving.

[0044] Preferably, the bottom of the lifting part 1 is provided with a bottom hole 37, the lifting plate 4 is provided with a plate hole 38, and the plate hole 38 and the bottom hole 37 are provided with a fixing rod 39; the lifting plate 4 is fixedly installed to the bottom of the lifting part 1 through the fixing rod 39 in the plate hole 38 and the bottom hole 37, so that the connection between the lifting plate 4 and the lifting part 1 is more stable and firm, and the inner wall of the bottom hole 37 is provided with internal threads, the outer wall of the fixing rod 39 is provided with external threads matched with the internal threads, workers can normally separate the lifting plate 4 from the lifting part 1 by rotating the fixing rod 39, and since the lifting plate 4 is a main load-bearing component of the heightener, workers can replace the lifting plate 4 when it is damaged.

[0045] The above embodiments are only preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A new type of top high device comprising a mounting frame and a lifting part (1) arranged on the mounting frame, characterized in that: The mounting frame comprises a base (2) and a guide rod (3) arranged on the base (2), the lifting part (1) is arranged on the guide rod (3), the lifting part (1) is provided with a lifting plate (4), a climbing mechanism (5) and a lifting handle (6) for controlling the climbing mechanism (5), pressing the lifting handle (6) drives the climbing mechanism (5) to control the lifting part (1) to move upwards along the guide rod (3), the lifting part (1) is further provided with a locking mechanism (7) for clamping the guide rod (3), the locking mechanism (7) limits the downward movement of the lifting part (1), the locking mechanism (7) is provided with a micro-switch (8), the micro-switch (8) is sleeved on the guide rod (3), a reset spring (9) is arranged between the micro-switch (8) and the locking mechanism (7), the two ends of the reset spring (9) are respectively abutted against the lower surface of the micro-switch (8) and the upper surface of the locking mechanism (7), the micro-switch (8) is provided with an adjusting rod (10), the adjusting rod (10) can abut against the upper surface of the locking mechanism (7), the micro-switch (8) is in an inclined state relative to the guide rod (3) when the micro-switch (8) is pressed, at this time, the micro-switch (8) and the guide rod (3) are in a locked state, the micro-switch (8) drives the adjusting rod (10) to move downwards to drive the locking mechanism (7) and the adjusting rod (10) to be unlocked, thereby realizing the fine adjustment of the lifting part (1) downwards.

2. A novel top high device as claimed in claim 1, wherein: The top end of the lifting part (1) is provided with a mounting table (11), the mounting table (11) is provided with a mounting rod (12), one end of the micro-switch (8) is provided with a mounting hole (13), the other end of the micro-switch (8) is provided with a pressing part (14), the mounting rod (12) passes through the mounting hole (13) and is connected with the mounting table (11), the top end of the mounting rod (12) is provided with an abutting part (15), a pushing spring (16) is arranged between the abutting part (15) and the micro-switch (8), the pushing spring (16) is sleeved on the mounting rod (12), the two ends of the pushing spring (16) are respectively abutted against the abutting part (15) and the micro-switch (8).

3. A novel top high device as claimed in claim 1, wherein: A threaded hole (40) is formed in the micro-switch (8), an outer thread is formed on the outer wall of the adjusting rod (10), and the adjusting rod (10) is arranged in the threaded hole (40) and is threadedly connected with the micro-switch (8).

4. A novel top high device as claimed in claim 2, wherein: A limiting piece (17) is arranged on the side surface of the micro-switch (8), a connecting hole (18) is formed in the side surface of the micro-switch (8), a fixing hole (19) is formed in the limiting piece (17), a connecting rod (20) is arranged in the connecting hole (18) and the fixing hole (19), a clamping hook part (21) is integrally formed at the bottom of the limiting piece (17), and the clamping hook part (21) is located directly below the locking mechanism (7).

5. A novel top high device as claimed in claim 4, wherein: The locking mechanism (7) comprises a locking piece (22) and a locking spring (23), the locking piece (22) is sleeved on the guide rod (3), the mounting table (11) is provided with a clamping groove (24), one end of the locking piece (22) is arranged in the clamping groove (24) and clamped with the mounting table (11), the clamping hook (21) is located directly below the locking piece (22), and the two ends of the locking spring (23) are respectively arranged on the top end of the lifting part (1) and the lower surface of the locking piece (22). The locking spring (23) pushes the locking piece (22) to be in an inclined state relative to the guide rod (3).

6. A novel top high device as claimed in any one of claims 1 to 4, wherein: The middle part of the lifting part (1) forms a mounting space (25), the climbing mechanism (5) is arranged in the mounting space (25), the lifting part (1) is provided with a through hole (26) penetrating through the mounting space (25), the guide rod (3) is arranged in the through hole (26), the climbing mechanism (5) comprises a climbing block (27) and a climbing spring (28), the climbing block (27) and the climbing spring (28) are sleeved on the rod body of the guide rod (3) located in the mounting space (25), the two ends of the climbing spring (28) are respectively arranged on the bottom in the mounting space (25) and the lower surface of the climbing block (27), the side surface of the lifting part (1) is provided with a control hole (29) communicating with the mounting space (25), one end of the lifting handle (6) is provided with an abutting block (30), one end of the abutting block (30) penetrates through the control hole (29) and is exposed to the mounting space (25), and the lower surface of the abutting block (30) abuts against the upper surface of the climbing block (27).

7. A novel top high device as claimed in claim 6, wherein: The through hole (26) is provided with rotating holes (31) on both sides, the middle part of the abutting block (30) is provided with a through hole (32), the rotating holes (31) and the through hole (32) are provided with rotating rods (33), and the lifting part (1) is provided with a fixed handle (34). The fixed handle (34) is located above the lifting handle (6).

8. A novel top high device as claimed in any one of claims 1 to 4, wherein: The bottom of the lifting part (1) is provided with a bottom hole (37), the lifting plate (4) is provided with a plate hole (38), and the plate hole (38) and the bottom hole (37) are provided with a fixing rod (39).

Images