Wireless radio frequency controller for electric hoist

Abstract

The present application relates to the technical field of controller, in particular to wireless radio frequency controller for electric hoist, which aims at the problem that the existing wireless radio frequency controller cannot conveniently and quickly remove dust from the switch contact in the controller, and proposes the following technical scheme: including a controller body, two rollers rotatably connected to the top surface of the controller body, a mounting groove opened in the controller body near the lower part of the rollers, a pressure switch symmetrically connected to the side surface of the roller, and a switch contact connected to the bottom surface of the mounting groove near the position of the pressure switch. In the process of using the present application, the pressing plate moves upward in the second connecting groove, the gas in the second connecting pipe enters the inside of the second connecting groove, that is, one of the connecting boxes and the first connecting pipe produces a suction effect, the gas with dust at the switch contact is sucked into the inside of the second connecting groove, and then the blowing and suction action achieves the dust removal effect, thereby ensuring the working effect of the switch contact.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of controllers, in particular to a wireless radio frequency controller for an electric hoist. BACKGROUND

[0002] The electric hoist is a kind of light and small hoisting equipment, which has the advantages of simple structure, convenient manufacturing and maintenance, good interchangeability, easy operation, convenient and fast lifting and transportation, and is widely used in industrial and mining enterprises, warehouses and wharfs and other places.

[0003] The wireless radio frequency controller is provided with a function control switch, which facilitates the user to operate the electric hoist. However, in the prior art, the up-down and left-right movement of the electric hoist controller is mainly realized by the roller waist rod. Usually, the roller is connected to the rotating frame, and the lower circuit is pressed and triggered by the swinging of the rotating frame.

[0004] However, in the prior art, the switch has a relatively large swinging space, and dust and other impurities can easily enter the swinging space and invade the lower circuit along the gap, increasing the failure rate of the switch and reducing the reliability of the switch in use. When the circuit contact of the switch fails due to too much dust entering, the switch is usually disassembled to clean the dust. Although this cleaning method can solve the problem of dust affecting the switch circuit, it is time-consuming and labor-intensive, and requires high labor cost. SUMMARY

[0005] In view of the above shortcomings of the prior art, the present application provides a wireless radio frequency controller for an electric hoist, which can effectively solve the problem that the wireless radio frequency controller in the prior art cannot conveniently and quickly remove dust from the switch contact inside the controller.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme:

[0007] The application provides a wireless radio frequency controller for an electric hoist, which comprises a controller body, two rollers rotatably connected to the top surface of the controller body, a mounting groove formed in the controller body and close to the lower part of the rollers, a pressure switch symmetrically connected to the side surface of the roller, and a switch contact connected to the bottom surface of the mounting groove and close to the position of the pressure switch, and further comprises a cleaning assembly arranged in the mounting groove and close to the position of the switch contact, which is used for cleaning dust on the switch contact, wherein the cleaning assembly comprises a mounting block connected to the bottom surface of the mounting groove and close to the position of the switch contact, the bottom surface of the mounting groove is connected with a connecting box on both sides close to the mounting block, the side surface of the connecting box close to the mounting block is connected with uniformly distributed first connecting pipes penetrating through the side surface, one of the connecting boxes is connected with a second connecting pipe penetrating through the side surface away from the mounting block, and the other connecting box is connected with a third connecting pipe penetrating through the side surface away from the mounting block, and the inside of the controller body close to the position of the mounting block is provided with a driving part, which is used for controlling the flow of gas in the connecting box.

[0008] An auxiliary assembly is arranged on the bottom surface of the mounting groove and close to the position of the third connecting pipe, which is used for connecting the third connecting pipe with the driving part.

[0009] Further, the driving part comprises a first connecting groove formed in the inside of the controller body and close to the position of the mounting block, a second connecting groove formed in the inside of the controller body and close to the position of the first connecting groove, a fifth connecting groove penetratingly connected to the middle part of the inner bottom surface of the first connecting groove and the second connecting groove, a one-way diaphragm arranged in the inside of the fifth connecting groove, the fourth connecting pipe and the second connecting pipe, a third communicating groove formed in the inside of the controller body and close to the lower part of the fifth connecting groove, the lower end of the fifth connecting groove penetratingly connected to the third communicating groove, a filter screen connected to the middle part of the inner top surface of the third communicating groove, a power part arranged in the inside of the first connecting groove, one end of the second connecting pipe extending to the position close to the second connecting groove and penetratingly connected to the lower part of the second connecting groove, and a fourth connecting pipe penetratingly connected to the lower part of the side surface of the first connecting groove.

[0010] Further, the power part comprises an electromagnet fixedly connected to the top surface of the first connecting groove, a first magnet elastically connected to the bottom surface of the electromagnet, the same magnetic property on the close surfaces between the electromagnet and the first magnet, a pressing plate elastically connected to the inner top surface of the second connecting groove, a first communicating groove formed in the upper part of the side surface of the first connecting groove close to the first magnet, and the first connecting groove and the second connecting groove are in communication through the first communicating groove.

[0011] Further, the cleaning assembly further comprises a connecting block connected to the lower end of the filter screen, the lower end of the connecting block extending to the outside of the third communicating groove, and the connecting block and the third communicating groove are in sliding connection.

[0012] Further, the top surface of the connecting block is connected with a second magnet, and the bottom surface of the controller body is connected with a third magnet corresponding to the position of the second magnet.

[0013] Further, the auxiliary assembly comprises a mounting cylinder symmetrically connected to the side surface of the mounting groove near the opening positions of the two sides of the mounting block, the inside of the mounting cylinder is elastically and slidably connected with a piston rod, one end of the piston rod away from the mounting cylinder extends to the position near the mounting block and is connected with a sealing block, and one end of the fourth connecting pipe away from the first connecting groove extends to the position near the mounting cylinder and is penetratingly connected with the mounting cylinder.

[0014] Further, one end of the third connecting pipe away from the mounting block extends to the position near the mounting cylinder and is penetratingly connected with the mounting cylinder, and the end of the third connecting pipe connected with the mounting cylinder is located near the sealing block.

[0015] Further, the auxiliary assembly further comprises a movable groove formed in the inside of the sealing block, the inside of the piston rod is penetratingly formed with a through hole, the through hole is in communication with the movable groove, the inner top surface of the movable groove is elastically and slidably connected with a sealing plate, and the side surface of the sealing plate is penetratingly formed with a connecting hole corresponding to the position of the through hole.

[0016] Further, the auxiliary assembly further comprises an elastic air bag connected to the side surface of the sealing block near the mounting block, the inner top surface of the movable groove is formed with a fourth communication groove, and the movable groove and the elastic air bag are in communication through the fourth communication groove.

[0017] Beneficial effects

[0018] Compared with the known prior art, the technical scheme provided by the application has the following beneficial effects:

[0019] Firstly, during the use of the application, when the first magnet moves downward in the first connecting groove, the cavity volume above the electromagnet in the first connecting groove becomes larger and larger, the gas above the pressing plate in the second connecting groove enters into the first connecting groove through the first communication groove, the pressing plate moves upward in the second connecting groove under the elastic restoring force between the pressing plate and the second connecting groove, the gas in the second connecting pipe enters into the second connecting groove, one of the connecting boxes and the first connecting pipe generates the air suction effect, the gas with dust at the switch contact is sucked into the second connecting groove, and then the blowing and sucking action achieves the dust removal effect, thereby ensuring the working effect of the switch contact.

[0020] II. When the gas in the electromagnet enters the inside of the fourth connecting pipe, it will first enter the inside of the installation cylinder to extrude the piston rod, the extrusion force makes the piston rod overcome the elastic force between the installation cylinder to drive the sealing block to move to the direction close to the opening of the installation block, until, both sealing blocks are tightly abutted with the opening outer wall of the installation block, so that the installation block is in a sealed state, and the cleaning effect of the dust on the surface of the switch contact point by the blowing and sucking action is improved;

[0021] III. The direction of the gas blown to the switch contact point is different from the direction of the gas blown to the surface of the switch contact point by the first connecting pipe, when the two streams of gas meet, the gas turbulence is generated at the surface of the switch contact point, and the cleaning effect of the dust on the switch contact point by the airflow is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 for the complete structure diagram of the present application;

[0024] Figure 2 for the structure diagram of the pressure switch of the present application;

[0025] Figure 3 for the structure diagram of the installation groove of the present application;

[0026] Figure 4 for the structure diagram of the third connecting pipe and the installation cylinder connection of the present application;

[0027] Figure 5 for the enlarged view of A in the present application; Figure 3

[0028] Figure 6 for the enlarged view of B in the present application; Figure 3

[0029] Figure 7 for the enlarged view of C in the present application; Figure 6

[0030] Figure 8 for the enlarged view of D in the present application; Figure 6

[0031] Figure 9 for the structure diagram of the piston rod and the installation cylinder connection of the present application;

[0032] Figure 10 ​​​​Enlarged view at E in the present invention Figure 9 Enlarged view at E in the present invention

[0033] Figure 11 Enlarged view at E in the present invention

[0034] Figure 12 Enlarged view at E in the present invention

[0035] 1, controller body; 2, scroll wheel; 3, pressure switch; 4, switch contact; 5, cleaning assembly; 51, connecting box; 52, first connecting pipe; 53, second connecting pipe; 54, third connecting pipe; 55, mounting block; 56, first connecting groove; 57, electromagnet; 58, first magnet; 59, fourth connecting pipe; 510, second connecting groove; 511, first communication groove; 512, pressing plate; 513, fifth connecting groove; 514, one-way diaphragm; 515, third communication groove; 516, filter screen; 517, connecting block; 518, second magnet; 519, third magnet; 6, mounting groove; 7, auxiliary assembly; 71, mounting cylinder; 72, piston rod; 73, sealing block; 74, elastic air bag; 75, through hole; 76, movable groove; 77, sealing plate; 78, connecting hole; 79, fourth communication groove. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0037] The present application will be further described below with reference to the embodiments.

[0038] Embodiment: refer to Figures 1 to 12Wireless radio frequency controller for electric hoist, including controller body 1, two rotating wheels 2 connected to the top surface of the controller body 1, installation slot 6 opened in the controller body 1 inside near the lower part of the roller 2, pressure switch 3 connected to the side surface of the roller 2 symmetrically and switch contact 4 connected to the bottom surface of the installation slot 6 near the position of the pressure switch 3, further including cleaning assembly 5 arranged in the installation slot 6 inside near the position of the switch contact 4, for cleaning the dust on the switch contact 4, the cleaning assembly 5 includes installation block 55 connected to the bottom surface of the installation slot 6 near the position of the switch contact 4, the bottom surface of the installation slot 6 near the two sides of the installation block 55 is connected with connecting box 51, the side surface of the connecting box 51 near the installation block 55 is connected with evenly distributed first connecting pipe 52, the side surface of the first connecting pipe 52 extending to the position of the switch contact 4 through the installation block 55, one of the connecting boxes 51 is connected with second connecting pipe 53 through the side surface away from the installation block 55, the other connecting box 51 is connected with third connecting pipe 54 through the side surface away from the installation block 55, the position of the installation block 55 inside the controller body 1 is provided with driving part, for controlling the gas flow inside the connecting box 51;

[0039] Auxiliary assembly 7 arranged in the bottom surface of the installation slot 6 near the position of the third connecting pipe 54, for connecting the third connecting pipe 54 with the driving part;

[0040] The power part includes electromagnet 57 fixedly connected to the top surface of the first connecting slot 56, the bottom surface of the electromagnet 57 is elastically connected with first magnet 58, the magnetic properties of the adjacent surfaces between the electromagnet 57 and the first magnet 58 are the same, the inner top surface of the second connecting slot 510 is elastically connected with pressing plate 512, the side surface of the first connecting slot 56 near the upper part of the first magnet 58 is provided with first communication slot 511, the first connecting slot 56 and the second connecting slot 510 are connected through the first communication slot 511;

[0041] When the controller body 1 is used for a period of time, the dust accumulated at the switch contact 4 needs to be cleaned, the staff energizes the electromagnet 57, the electromagnet 57 has magnetic force after being energized, when the electromagnet 57 is energized, the repulsive force is generated between the electromagnet 57 and the first magnet 58, the repulsive force makes the first magnet 58 move away from the electromagnet 57 against the elastic force between them, the gas in the first connecting groove 56 is extruded, the gas in the first connecting groove 56 below the first magnet 58 enters the inside of the fourth connecting pipe 59, and then enters the inside of the third connecting pipe 54 through the fourth connecting pipe 59, and then enters the inside of one of the connecting boxes 51 through the third connecting pipe 54, and then blows to the surface of the switch contact 4 through the first connecting pipe 52, blows up the dust attached to the surface of the switch contact 4. It is worth noting that when the first magnet 58 moves downward in the first connecting groove 56, the cavity volume in the first connecting groove 56 above the electromagnet 57 becomes larger and larger, the gas in the second connecting groove 510 above the pressing plate 512 enters the inside of the first connecting groove 56 through the first connecting groove 511, under the action of the elastic force of the elastic deformation between the pressing plate 512 and the second connecting groove 510, the pressing plate 512 moves upward in the second connecting groove 510, the gas in the second connecting pipe 53 enters the inside of the second connecting groove 510, that is, one of the connecting boxes 51 and the first connecting pipe 52 generates an air suction effect, and the gas with dust at the switch contact 4 is sucked into the inside of the second connecting groove 510, and then the blowing and sucking action achieves the dust removal effect, and then preserves the working effect of the switch contact 4;

[0042] The auxiliary assembly 7 comprises a mounting cylinder 71 symmetrically connected to the side of the mounting groove 6 near the opening position of the two sides of the mounting block 55, the inside of the mounting cylinder 71 is elastically and slidably connected with a piston rod 72, one end of the piston rod 72 away from the mounting cylinder 71 extends to a position close to the mounting block 55 and is connected with a sealing block 73, and one end of the fourth connecting pipe 59 away from the first connecting groove 56 extends to a position close to the mounting cylinder 71 and is connected with the mounting cylinder 71;

[0043] The third connecting pipe 54 extends to a position close to the mounting cylinder 71 away from the mounting block 55 and is connected with the mounting cylinder 71, and the end of the third connecting pipe 54 connected with the mounting cylinder 71 is located close to the sealing block 73;

[0044] Further, when the gas inside the electromagnet 57 enters the inside of the fourth connecting pipe 59, it first enters the inside of the mounting cylinder 71 to extrude the piston rod 72, the extrusion force drives the sealing block 73 to move towards the opening of the mounting block 55 against the elastic force between the piston rod 72 and the mounting cylinder 71, until both sealing blocks 73 abut against the outer wall of the opening of the mounting block 55, so that the mounting block 55 is in a sealed state, improving the cleaning effect of the blowing and sucking action on the dust on the surface of the switch contact 4 in the mounting block 55;

[0045] Notably, in the initial state, the connecting end of the third connecting pipe 54 and the mounting cylinder 71 is on the right side of the piston rod 72 close to the end of the fourth connecting pipe 59, and when the sealing block 73 abuts against the outer wall of the opening of the mounting block 55, the connecting end of the third connecting pipe 54 and the mounting cylinder 71 is on the left side of the piston rod 72 close to the end of the fourth connecting pipe 59, that is, when the sealing block 73 abuts against the mounting block 55, the third connecting pipe 54 and the fourth connecting pipe 59 are in communication, at this time, the gas entering the inside of the mounting cylinder 71 from the fourth connecting pipe 59 enters the inside of the third connecting pipe 54, ensuring that the dust on the surface of the switch contact 4 in the mounting block 55 is blown and sucked only when the inside of the mounting block 55 is in a sealed state, further ensuring the cleaning effect of the dust on the switch contact 4;

[0046] The auxiliary assembly 7 further comprises a movable groove 76 opened in the sealing block 73, a through hole 75 is through in the inside of the piston rod 72, the through hole 75 is in communication with the movable groove 76, and the inner top surface of the movable groove 76 is elastically and slidably connected with a sealing plate 77, and a connecting hole 78 is through in the side surface of the sealing plate 77 corresponding to the position of the through hole 75;

[0047] The auxiliary assembly 7 further comprises an elastic air bag 74 connected to the side surface of the sealing block 73 close to the mounting block 55, and a fourth communication groove 79 is opened in the upper part of the inner top surface of the movable groove 76, and the movable groove 76 and the elastic air bag 74 are in communication through the fourth communication groove 79;

[0048] Further, when the sealing block 73 moves towards the outer wall of the mounting block 55, the mounting block 55 gradually extrudes the elastic air bag 74, the extrusion force makes the gas inside the elastic air bag 74 enter the inside of the movable groove 76 through the fourth communication groove 79 to extrude the sealing plate 77, the extrusion force makes the sealing plate 77 overcome the elastic force between the movable groove 76 and move towards the piston rod 72, that is, the connecting hole 78 moves towards the through hole 75, until the connecting hole 78 and the through hole 75 are in communication, at this time, the gas inside the mounting cylinder 71 also blows to the surface of the switch contact 4 through the through hole 75, it is worth noting that the direction of the gas blowing to the surface of the switch contact 4 from the through hole 75 is different from the direction of the gas blowing to the surface of the switch contact 4 from the first connecting pipe 52, when the two gas streams meet, gas turbulence is generated on the surface of the switch contact 4, which further improves the cleaning effect of the gas flow on the dust on the switch contact 4;

[0049] The driving member comprises a first connecting groove 56 arranged in the controller body 1 near the mounting block 55, a second connecting groove 510 is arranged in the controller body 1 near the first connecting groove 56, a fifth connecting groove 513 is arranged in the middle of the inner bottom surface of the first connecting groove 56 and the second connecting groove 510, a one-way diaphragm 514 is arranged in the inside of the fifth connecting groove 513, the fourth connecting pipe 59 and the second connecting pipe 53, a third communication groove 515 is arranged in the lower part of the controller body 1 near the fifth connecting groove 513, the lower end of the fifth connecting groove 513 is connected with the third communication groove 515, a filter screen 516 is arranged in the middle of the inner top surface of the third communication groove 515, a power member is arranged in the inside of the first connecting groove 56, one end of the second connecting pipe 53 away from the connecting box 51 extends to the position near the second connecting groove 510 and is connected with the lower part of the second connecting groove 510, and the fourth connecting pipe 59 is connected with the side lower part of the first connecting groove 56;

[0050] The cleaning assembly 5 further comprises a connecting block 517 connected to the lower end of the filter screen 516, the lower end of the connecting block 517 extends to the outside of the third communication groove 515, and the connecting block 517 is connected with the third communication groove 515 in a sliding manner;

[0051] The top surface of the connecting block 517 is connected with a second magnet 518, and the bottom surface of the controller body 1 is connected with a third magnet 519 corresponding to the position of the second magnet 518;

[0052] Further, when the dust on the switch contact 4 is cleaned, the power supply to the electromagnet 57 is stopped, at this time, under the action of the elastic force of the elastic deformation between the first magnet 58 and the electromagnet 57, the first magnet 58 gradually returns to the initial state, under the action of the elastic force of the elastic deformation between the pressing plate 512 and the second connecting groove 510, the pressing plate 512 gradually returns to the initial adjustment, in the process of the upward movement of the first magnet 58, by setting the one-way diaphragm 514, the function of the one-way valve is played, which is a prior art and will not be described here. The gas in the fourth connecting pipe 59 is prevented from entering the inside of the electromagnet 57, so that in the process of the upward movement of the first magnet 58, the gas in the third connecting groove 515 enters the inside of the first connecting groove 56, and the inside of the first connecting groove 56 is supplemented with gas, in the process of the downward movement of the pressing plate 512, the pressing plate 512 extrudes the gas in the second connecting groove 510, the extrusion force makes the gas in the second connecting groove 510 pass through the fifth connecting groove 513, the one-way diaphragm 514, enter the inside of the third connecting groove 515, and then enter the inside of the first connecting groove 56 through the filter screen 516, so as to supplement the inside of the first connecting groove 56 with gas and ensure the normal operation of the next cleaning work. It is worth noting that in the process of the flow of the gas through the filter screen 516, the filter screen 516 filters the dust in the gas, so as to ensure the subsequent cleaning effect.

[0053] Further, by setting the filter screen 516 and the controller body 1 to be magnetically connected through the second magnet 518 and the third magnet 519, when the worker needs to clean the filter screen 516, the filter screen 516 can be taken down for cleaning by overcoming the magnetic force between the second magnet 518 and the third magnet 519 by manpower.

[0054] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A wireless radio frequency controller for an electric hoist, comprising a controller body (1), two rollers (2) rotatably connected to the top surface of the controller body (1), a mounting groove (6) opened inside the controller body (1) near the lower part of the rollers (2), pressure switches (3) symmetrically connected to the sides of the rollers (2), and switch contacts (4) connected to the bottom surface of the mounting groove (6) near the pressure switches (3), characterized in that, Also includes: A cleaning component (5) is installed inside the mounting slot (6) near the switch contact (4) to clean the dust on the switch contact (4). The cleaning component (5) includes a mounting block (55) connected to the bottom surface of the mounting slot (6) near the switch contact (4). Both sides of the bottom surface of the mounting slot (6) near the mounting block (55) are connected to a connecting box (51). The side of the connecting box (51) near the mounting block (55) is connected to a uniformly distributed first connecting pipe (52). The first connecting pipe (52) extends through the side of the mounting block (55) to the position of the switch contact (4). One of the connecting boxes (51) is connected to a second connecting pipe (53) on the side away from the mounting block (55), and the other connecting box (51) is connected to a third connecting pipe (54) on the side away from the mounting block (55). The controller body (1) is provided with a driving component inside near the mounting block (55) to control the gas flow inside the connecting box (51). An auxiliary component (7) is installed on the bottom surface of the mounting slot (6) near the third connecting pipe (54) for connecting the third connecting pipe (54) and the driving component; The driving component includes a first connecting groove (56) located inside the controller body (1) near the mounting block (55). A second connecting groove (510) is located inside the controller body (1) near the first connecting groove (56). A fifth connecting groove (513) is formed through the middle of the inner bottom surfaces of the first connecting groove (56) and the second connecting groove (510). A one-way diaphragm (514) is provided inside the fifth connecting groove (513), the fourth connecting pipe (59), and the second connecting pipe (53). The controller body (1) is located inside the fifth connecting groove (514). The lower part of the fifth connecting groove (513) is provided with a third connecting groove (515). The lower end of the fifth connecting groove (513) is connected to the third connecting groove (515). A filter screen (516) is connected to the middle of the inner top surface of the third connecting groove (515). A power component is provided inside the first connecting groove (56). The end of the second connecting pipe (53) away from the connecting box (51) extends to a position close to the second connecting groove (510) and is connected to the lower part of the second connecting groove (510). A fourth connecting pipe (59) is connected to the lower side of the first connecting groove (56).

2. The wireless radio frequency controller for electric hoists according to claim 1, characterized in that, The power component includes an electromagnet (57) fixedly connected to the top surface of the first connecting groove (56). The bottom surface of the electromagnet (57) is elastically connected to a first magnet (58). The electromagnet (57) and the first magnet (58) have the same magnetism on their adjacent surfaces. The inner top surface of the second connecting groove (510) is elastically connected to a pressure plate (512). The side of the first connecting groove (56) near the upper part of the first magnet (58) is provided with a first connecting groove (511). The first connecting groove (56) and the second connecting groove (510) are connected through the first connecting groove (511).

3. The wireless radio frequency controller for electric hoists according to claim 1, characterized in that, The cleaning assembly (5) further includes a connecting block (517) connected to the lower end of the filter screen (516), the lower end of the connecting block (517) extending to the outside of the third connecting groove (515), and the connecting block (517) and the third connecting groove (515) being slidably connected.

4. The wireless radio frequency controller for electric hoists according to claim 3, characterized in that, The top surface of the connecting block (517) is connected to a second magnet (518), and the bottom surface of the controller body (1) is connected to a third magnet (519) corresponding to the position of the second magnet (518).

5. The wireless radio frequency controller for electric hoists according to claim 1, characterized in that, The auxiliary component (7) includes a mounting cylinder (71) symmetrically connected to the side of the mounting groove (6) near the openings on both sides of the mounting block (55). The mounting cylinder (71) is elastically slidably connected to a piston rod (72). One end of the piston rod (72) away from the mounting cylinder (71) extends to a position near the mounting block (55) and is connected to a sealing block (73). One end of the fourth connecting pipe (59) away from the first connecting groove (56) extends to a position near the mounting cylinder (71) and is connected through the mounting cylinder (71).

6. The wireless radio frequency controller for electric hoists according to claim 5, characterized in that, The third connecting pipe (54) extends from the end away from the mounting block (55) to a position close to the mounting cylinder (71) and is connected through the mounting cylinder (71). The end of the third connecting pipe (54) connected to the mounting cylinder (71) is located close to the sealing block (73).

7. The wireless radio frequency controller for electric hoists according to claim 5, characterized in that, The auxiliary component (7) also includes a movable groove (76) opened inside the sealing block (73), and a through hole (75) is opened through the inside of the piston rod (72). The through hole (75) is connected to the movable groove (76). A sealing plate (77) is elastically slidably connected to the inner top surface of the movable groove (76). A connecting hole (78) is opened through the side of the sealing plate (77) corresponding to the position of the through hole (75).

8. The wireless radio frequency controller for electric hoists according to claim 7, characterized in that, The auxiliary component (7) also includes an elastic airbag (74) connected to the side of the sealing block (73) near the mounting block (55). A fourth connecting groove (79) is provided on the upper part of the inner top surface of the movable groove (76). The movable groove (76) and the elastic airbag (74) are connected through the fourth connecting groove (79).

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