CN210986682U - Wireless combustible gas remote control device - Google Patents

Abstract

The utility model relates to the technical field of gas control accessories, in particular to a wireless combustible gas remote control device, which is characterized in that a controller body does not need to be held by hands all the time when in use and can be conveniently fixed, thereby improving the practicability of the device; the controller comprises a controller body, wherein a display screen and a control key group are arranged on the front side wall of the controller body; still include the backup pad, a pedestal, screwed pipe and threaded rod, base top center is provided with the bearing frame, and rotatable ball bearing that is fixed with in the inside of bearing frame, base top left side is provided with the riser, still include first bevel gear, second bevel gear, the handle, left connecting rod, well connecting rod and right connecting rod, horizontal intercommunication is provided with first logical groove on the riser, and it is rotatable to be fixed with first ball group to lead to the inside wall in first logical groove, still include four groups and go up the connecting block, four groups's first cover spring, four groups of flexible pipes and four groups of lower connecting block, well connecting rod outside fixed cover is equipped with two sets of spacing rings, two sets of spacing ring inboards all.

Description

Wireless combustible gas remote control device

Technical Field

The utility model relates to a technical field of gas control auxiliary device especially relates to a wireless combustible gas remote control device.

Background

As is well known, a wireless combustible gas remote control device is an auxiliary device which is used for remotely controlling a combustible gas electronic valve in the use process of combustible gas so as to better convey the combustible gas or not, and is widely used in the field of gas control; the existing wireless combustible gas remote control device comprises a controller body, wherein a display screen and a control key group are arranged on the front side wall of the controller body; when the existing wireless combustible gas remote control device is used, the controller body is held by hand, the controller body runs control software and controls the controller body through a control key group, the controller body is a common electric device in the market, the controller body can be used only by being electrically connected according to a purchased use specification when bought for use, and connecting wires can be reasonably wired for work, so that the description is omitted; the existing wireless combustible gas remote control device is found in use, and the controller body needs to be held by hands constantly when in use, and cannot be conveniently fixed, so that the practicability is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a need not to hold constantly when its controller body uses, can conveniently fix to improve the wireless combustible gas remote control device of its practicality.

The utility model discloses a wireless combustible gas remote control device, which comprises a controller body, wherein the front side wall of the controller body is provided with a display screen and a control key group; the screw thread pipe comprises a base, a first bevel gear, a second bevel gear, a handle, a left connecting rod, a middle connecting rod and a right connecting rod, wherein the base is provided with a bearing seat at the center of the top end, the ball bearing is rotatably fixed in the bearing seat, the bottom end of the threaded pipe is in interference fit with the ball bearing, the bottom end of the threaded rod is screwed into the top end of the threaded pipe, the top end of the threaded rod is connected with the center of the bottom end of the support plate, the left side of the top end of the base is provided with a vertical plate, the screw thread pipe also comprises a first bevel gear, a second bevel gear, a handle, a left connecting rod, a middle connecting rod and a right connecting rod, the first bevel gear is fixedly sleeved outside the threaded pipe, the second bevel gear is positioned at the right side of the vertical plate and is meshed with the first bevel gear, the left end of the left, the right end of the middle connecting rod passes through the first ball group and extends to the right side of the vertical plate, and also comprises four groups of upper connecting blocks, four groups of first sleeve springs, four groups of telescopic pipes and four groups of lower connecting blocks, the top ends of the four groups of upper connecting blocks are respectively arranged at the left front side of the bottom end of the supporting plate, the four groups of first sleeve springs are respectively connected with the four groups of upper connecting blocks, the other ends of the four groups of first sleeve springs are respectively connected with the four groups of lower connecting blocks, one ends of the four groups of telescopic pipes are respectively connected with the four groups of upper connecting blocks, the other ends of the four groups of telescopic pipes are respectively connected with the four groups of lower connecting blocks, the four groups of first sleeve springs are respectively sleeved outside the four groups of rotating blocks, the four groups of lower connecting blocks are respectively installed at the top end of the base, two groups of limiting rings are fixedly sleeved outside the middle connecting rods, limiting wheel groups are respectively arranged on the inner sides of the two groups of limiting rings, and the two groups of limiting wheel groups are respectively attached.

Preferably, still include clamp, two sets of spacing seats, bolt and nut, the clamp is installed in controller body rear side, is provided with the breach on the clamp, and two sets of spacing seats are all installed in breach department, and all are provided with the through-hole on two sets of spacing seats, and bolt one end is provided with spacing ear soon, and the bolt other end passes two sets of through-holes and stretches out to the through-hole outside and insert and the spiral shell to the nut inside.

Preferably, still include regulating spring group and solid fixed ring, the one end and the clamp inboard of regulating spring group are connected, and the regulating spring group other end is connected with solid fixed ring, all is provided with the opening on the solid fixed ring.

Preferably, still include two sets of stationary blades, two sets of second cover springs and two sets of splint, two sets of stationary blades are installed respectively in the backup pad top left and right sides, the inside and outside both ends of two sets of second cover springs are connected with two sets of splint outsides and two sets of stationary blades inboards respectively, still include two sets of pull rods and two sets of arm-tie, transversely all be provided with the second on two sets of stationary blades and lead to the groove, two sets of second lead to the inslot lateral wall all can rotate and be fixed with second ball group, two sets of pull rod outer ends are connected with two sets of arm-tie respectively, two sets of pull rod inner passes two sets of second ball group respectively and all stretches into to two sets of stationary blades inboards and be connected with two sets of splint outsides, two sets of second cover springs suit respectively is in.

Preferably, still include belt ring and elastic bandage, elastic bandage one end is connected with the belt ring, is provided with the inserted block on the belt ring, and the last intercommunication of elastic bandage is provided with the spacing hole of multiunit, and the inserted block inserts inside one of them a set of spacing downthehole portion in the spacing hole of multiunit.

Preferably, still include two sets of slip posts, two sets of spliced poles, drive post, mounting panel and brush hair, controller body front side transversely is provided with two sets of spouts, and two sets of spouts are located both sides about the display screen respectively, and two sets of slip posts are slidable respectively and fix in two sets of spouts departments, and two sets of spliced poles one end is connected with two sets of slip posts respectively, and two sets of spliced poles other ends are connected with drive capital both ends respectively, and the brush hair is installed in the mounting panel rear side, and the display screen is hugged closely to the brush hair.

Preferably, the telescopic device further comprises a plurality of groups of third sleeve springs and a plurality of groups of third telescopic pipes, wherein one ends of the plurality of groups of third sleeve springs are all connected with the mounting plate, the other ends of the plurality of groups of third sleeve springs are all connected with the driving column, one ends of the plurality of groups of third telescopic pipes are all connected with the mounting plate, the other ends of the plurality of groups of third telescopic pipes are all connected with the driving column, and the plurality of groups of third sleeve springs are respectively sleeved outside the plurality of groups of third telescopic pipes.

Preferably, the controller further comprises a fixing column and a protective cover, the fixing column is mounted on the front side of the controller body and located above the control key group, the top end of the protective cover is hinged to the fixing column, and the control key is located inside the protective cover.

Compared with the prior art, the beneficial effects of the utility model are that: the controller body can be supported and placed through the supporting plate, so that the controller body does not need to be held by hands constantly when in use and can be conveniently fixed, thereby improving the practicability of the controller body, the supporting plate on the threaded rod is driven to longitudinally move by rotating the threaded pipe, the supporting height of the supporting plate can be conveniently adjusted according to the current use requirement, the handle is manually rotated to drive the second bevel gear on the right connecting rod to rotate, the first bevel gear rotates along with the first bevel gear on the basis of meshing, so that the threaded pipe rotates more conveniently, the connecting rod rotates more smoothly in the first ball group assistance, the friction force is reduced, the self wall thickness of the vertical plate is convenient to improve the supporting effect, the four groups of first springs are convenient to adjust and improve the supporting effect, the four groups of telescopic pipes assist the four groups of first springs to be difficult to distort and deform, and the supporting plate is, the sliding wheel set facilitates longitudinal movement of the support plate to be more smooth and reliable, the connecting rod only rotates but does not move transversely in the assistance of the two sets of limiting rings, and the limiting wheel set facilitates rotation and improves the supporting effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a side view of the controller body and clip connection;

FIG. 3 is a schematic view of the connection of the belt loop and elastic band;

FIG. 4 is a schematic structural view of the connection of the driving post, the mounting plate, the brush and the third set of spring;

FIG. 5 is an enlarged partial view of portion A of FIG. 1;

in the drawings, the reference numbers: 1. a controller body; 2. a display screen; 3. a control key group; 4. a support plate; 5. a base; 6. a threaded pipe; 7. a threaded rod; 8. a vertical plate; 9. a first bevel gear; 10. a second bevel gear; 11. a handle; 12. a middle connecting rod; 13. a first set of springs; 14. a limiting ring; 15. a limiting wheel set; 16. clamping a hoop; 17. a limiting seat; 18. a bolt; 19. a nut; 20. limiting rotary lugs; 21. a fixing ring; 22. a fixing sheet; 23. a splint; 24. a pull rod; 25. pulling a plate; 26. a belt ring; 27. an elastic band; 28. inserting a block; 29. a limiting hole; 30. a sliding post; 31. connecting columns; 32. driving the column; 33. mounting a plate; 34. brushing; 35. a chute; 36. a third set of springs; 37. fixing a column; 38. a protective cover.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, the wireless combustible gas remote control device of the present invention comprises a controller body 1, wherein a display screen 2 and a control key group 3 are arranged on a front side wall of the controller body 1; the novel controller comprises a base, a supporting plate 4, a base 5, a threaded pipe 6 and a threaded rod 7, wherein a bearing seat is arranged at the center of the top end of the base 5, a ball bearing is rotatably fixed in the bearing seat, the bottom end of the threaded pipe 6 is in interference fit with the inside of the ball bearing, the bottom end of the threaded rod 7 is screwed into the top end of the threaded pipe 6, the top end of the threaded rod 7 is connected with the center of the bottom end of the supporting plate 4, a vertical plate 8 is arranged on the left side of the top end of the base 5, the controller body 1 can be supported and placed through the supporting plate 4, the controller body 1 does not need to be held by hands constantly when in use and can be conveniently fixed, the practicability of the novel controller is improved, the supporting plate 4 on the threaded rod 7 is driven to move longitudinally through rotation of the threaded pipe 6, a middle connecting rod 12 and a right connecting rod, a first bevel gear 9 is fixedly sleeved outside the threaded pipe 6, a second bevel gear 10 is positioned at the right side of the vertical plate 8 and is meshed with the first bevel gear 9, the left end of the left connecting rod is connected with the right side of the handle 11, the left end and the right end of the middle connecting rod 12 are respectively connected with the left connecting rod and the right connecting rod, the right end of the right connecting rod is connected with the second bevel gear 10, a first through groove is arranged on the vertical plate 8 in a transverse communication manner, a first ball group is rotatably fixed on the inner side wall of the first through groove, the right end of the middle connecting rod 12 passes through the first ball group and extends to the right side of the vertical plate 8, the handle 11 is manually rotated to drive the second bevel gear 10 on the right connecting rod to rotate, the first bevel gear 9 rotates along with the first bevel gear on the basis of meshing, the threaded pipe 6 is, the self wall thickness of the vertical plate 8 is convenient to improve the supporting effect, the vertical plate also comprises four groups of upper connecting blocks, four groups of first sleeve springs 13, four groups of telescopic pipes and four groups of lower connecting blocks, the top ends of the four groups of upper connecting blocks are respectively arranged at the left front side, the right front side, the left rear side and the right rear side of the bottom end of the supporting plate 4, one ends of the four groups of first sleeve springs 13 are respectively connected with the four groups of upper connecting blocks, the other ends of the four groups of telescopic pipes are respectively connected with the four groups of lower connecting blocks, the four groups of first sleeve springs 13 are respectively sleeved at the outer sides of the four groups of rotating blocks, the four groups of lower connecting blocks are all arranged at the top end of the base 5, the four groups of first sleeve springs 13 are convenient to adjust and improve the supporting effect, the four groups of first sleeve springs 13 assisting the four groups of telescopic pipes are not easy to distort and deform, and, the outer side of the middle connecting rod 12 is fixedly sleeved with two groups of limiting rings 14, the inner sides of the two groups of limiting rings 14 are respectively provided with a limiting wheel set 15, the two groups of limiting wheel sets 15 are respectively attached to and tightly contacted with the left side and the right side of the vertical plate 8, the two groups of limiting rings 14 assist the middle connecting rod 12 to only rotate without transversely moving, the limiting wheel sets 15 are more convenient to rotate and improve the supporting effect, the device also comprises a clamp 16, two groups of limiting seats 17, bolts 18 and nuts 19, the clamp 16 is arranged at the rear side of the controller body 1, the clamp 16 is provided with a notch, the two groups of limiting seats 17 are both arranged at the notch, the two groups of limiting seats 17 are both provided with through holes, one end of each bolt 18 is provided with a limiting rotary lug 20, the other end of each bolt 18 passes through the two groups of through holes and extends out of the through holes to be inserted into and screwed into the nut 19, when the controller body 1 displays that the angle needs to be adjusted, the nut 19 can be unscrewed manually, the circumference of the clamp 16 can be adjusted, the controller body 1 can be rotated to a proper position, then the nut 19 can be screwed down manually to fix the controller, the controller further comprises an adjusting spring set and a fixing ring 21, one end of the adjusting spring set is connected with the inner side of the clamp 16, the other end of the adjusting spring set is connected with the fixing ring 21, the fixing ring 21 is provided with notches, the fixing ring 21 is a soft ring, the external mounting column can be protected in a buffering mode through the adjusting spring set and the fixing ring 21, the damage of the external mounting column caused by the undersize circumference of the clamp 16 is reduced, the controller further comprises two groups of fixing pieces 22, two groups of second set springs and two groups of clamping plates 23, the two groups of fixing pieces 22 are respectively arranged on the left side and the right side of the top end of the supporting plate 4, the inner, the controller also comprises two groups of pull rods 24 and two groups of pull plates 25, wherein the two groups of fixed plates 22 are transversely provided with second through grooves, the inner side walls of the two groups of second through grooves can be rotatably fixed with second ball groups, the outer ends of the two groups of pull rods 24 are respectively connected with the two groups of pull plates 25, the inner ends of the two groups of pull rods 24 respectively penetrate through the two groups of second ball groups and respectively extend into the inner sides of the two groups of fixed plates 22 to be connected with the outer sides of the two groups of clamping plates 23, the two groups of second springs are respectively sleeved on the outer sides of the two groups of pull rods 24, the controller body 1 is placed at the top end of the supporting plate 4, the controller body 1 is clamped between the two groups of clamping plates 23 and can be manually pulled by the two groups of pull plates 25, the two groups of pull plates 25 drive the two groups of clamping plates 23 on the two groups of pull rods 24 to clamp and fix the controller, the novel display screen comprises a display screen body 1, and further comprises a belt ring 26 and an elastic bandage 27, one end of the elastic bandage 27 is connected with the belt ring 26, an insert block 28 is arranged on the belt ring 26, a plurality of groups of limiting holes 29 are communicated and arranged on the elastic bandage 27, the insert block 28 is inserted into one limiting hole 29 of the limiting holes 29, the insert block can be fixedly sleeved outside connecting wires through the belt ring 26, the remaining connecting wires are bound through the elastic bandage 27, the design that the insert block 28 is inserted into one limiting hole 29 of the limiting holes improves the adaptability, the connecting wires are convenient to manage, the connecting wires are not easy to mutually wind, the arrangement can be conveniently carried out, the use reliability of the connecting wires is improved, the novel display screen further comprises two groups of sliding columns 30, two groups of connecting columns 31, driving columns 32, a mounting plate 33 and bristles 34, two groups of sliding grooves 35 are transversely arranged on the front side of the controller body 1, two sets of sliding columns 30 are respectively fixed at two sets of sliding grooves 35 in a sliding manner, one end of each set of connecting column 31 is respectively connected with the two sets of sliding columns 30, the other end of each set of connecting column 31 is respectively connected with the top and bottom ends of a driving column 32, bristles 34 are installed at the rear side of a mounting plate 33, the bristles 34 are tightly attached to the display screen 2, the display screen 2 is easy to be polluted after long-term use, the driving columns 32 can be driven by manual sliding, the driving columns 32 drive a sponge eraser on the mounting plate 33 to conveniently and timely wipe the display screen 2, the cleaning performance of the display screen is improved, the display screen cleaning device further comprises a plurality of sets of third sleeve springs 36 and a plurality of sets of third telescopic tubes, one ends of the plurality of sets of third sleeve springs 36 are respectively connected with the mounting plate 33, the other ends of the plurality of sets of third telescopic tubes are respectively connected with the mounting plate 33, the other ends of the plurality of third telescopic tubes are respectively connected with the, it can extrude mounting panel 33 through third set of spring 36 and make it extrude brush hair 34 for brush hair 34 pastes display screen 2 closely all the time, still includes fixed column 37 and visor 38, and fixed column 37 installs in controller body 1 front side, and fixed column 37 is located the top of control key group 3, and visor 38 top is articulated with fixed column 37, and the control key is located inside visor 38, and it can keep apart protection through visor 38 to control key group 3, prevents the mistake and touches.

The utility model discloses a wireless combustible gas remote control device, above the mounting means of all parts, connected mode or the mode that sets up are the welding, riveting or other common mechanical mode, wherein can slide/rotate fixedly promptly for slide/not dropping under the rotation state, sealed intercommunication seals when two connecting pieces communicate promptly, and the concrete structure of its all parts, model and coefficient index are its from the area technique, as long as can reach all implementation of its beneficial effect, above-mentioned all with the electric module and be the common electrical part in market with electrical apparatus, only need to connect according to the mutual electricity of the instruction manual that together buys back when buying back the use and can use, and control module is its common from taking the module, the event is no longer repeated here.

In the case of the wireless remote control device for combustible gas of the utility model, the terms of orientation such as "up, down, left, right, front, back, inside, outside, vertical and horizontal" and the like included in the terms only represent the orientation of the terms in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A wireless combustible gas remote control device comprises a controller body (1), wherein a display screen (2) and a control key group (3) are arranged on the front side wall of the controller body (1); the device is characterized by further comprising a supporting plate (4), a base (5), a threaded pipe (6) and a threaded rod (7), wherein a bearing seat is arranged at the center of the top end of the base (5), a ball bearing is rotatably fixed in the bearing seat, the bottom end of the threaded pipe (6) is in interference fit with the inside of the ball bearing, the bottom end of the threaded rod (7) is screwed into the inside of the top end of the threaded pipe (6), the top end of the threaded rod (7) is connected with the center of the bottom end of the supporting plate (4), a vertical plate (8) is arranged on the left side of the top end of the base (5), the device further comprises a first bevel gear (9), a second bevel gear (10), a handle (11), a left connecting rod, a middle connecting rod (12) and a right connecting rod, the first bevel gear (9) is fixedly sleeved on the outer side of the threaded pipe (6), the second bevel gear (10) is positioned on the, the left end and the right end of a middle connecting rod (12) are respectively connected with a left connecting rod and a right connecting rod, the right end of the right connecting rod is connected with the center of a second bevel gear (10), a first through groove is transversely communicated with a vertical plate (8), a first ball group is rotatably fixed on the inner side wall of the first through groove, the right end of the middle connecting rod (12) passes through the first ball group and extends to the right side of the vertical plate (8), the vertical plate also comprises four groups of upper connecting blocks, four groups of first sleeve springs (13), four groups of telescopic pipes and four groups of lower connecting blocks, the top ends of the four groups of upper connecting blocks are respectively arranged at the left front side, the right front side, the left rear side and the right rear side of the bottom end of a supporting plate (4), one ends of the four groups of first sleeve springs (13) are respectively connected with the four groups of upper connecting blocks, the other ends of the four groups of first sleeve springs (13) are respectively connected, four groups of first sleeve springs (13) are respectively sleeved on the outer sides of the four groups of rotating blocks, four groups of lower connecting blocks are respectively installed at the top end of the base (5), two groups of limiting rings (14) are fixedly sleeved on the outer sides of the middle connecting rods (12), limiting wheel sets (15) are respectively arranged on the inner sides of the two groups of limiting rings (14), and the two groups of limiting wheel sets (15) are respectively in close contact with the left side and the right side of the vertical plate (8).

2. The wireless combustible gas remote control device according to claim 1, further comprising a clamp (16), two sets of limiting seats (17), a bolt (18) and a nut (19), wherein the clamp (16) is installed at the rear side of the controller body (1), a notch is provided on the clamp (16), both sets of limiting seats (17) are installed at the notch, a through hole is provided on both sets of limiting seats (17), a limiting rotary lug (20) is provided at one end of the bolt (18), and the other end of the bolt (18) passes through both sets of through holes and extends out of the through hole to be inserted into and screwed into the nut (19).

3. The wireless combustible gas remote control device according to claim 2, further comprising an adjusting spring set and a fixing ring (21), wherein one end of the adjusting spring set is connected with the inner side of the hoop (16), the other end of the adjusting spring set is connected with the fixing ring (21), and the fixing ring (21) is provided with a notch.

4. The wireless remote control device for combustible gas according to claim 3, characterized in that it further comprises two sets of fixing pieces (22), two sets of second set springs and two sets of clamping plates (23), wherein the two sets of fixing pieces (22) are respectively installed at the left and right sides of the top end of the supporting plate (4), the inner and outer ends of the two sets of second set springs are respectively connected with the outer sides of the two sets of clamping plates (23) and the inner sides of the two sets of fixing pieces (22), the wireless remote control device further comprises two sets of pull rods (24) and two sets of pull plates (25), the two sets of fixing pieces (22) are transversely provided with second through grooves, the inner side walls of the two sets of second through grooves are rotatably fixed with second ball sets, the outer ends of the two sets of pull rods (24) are respectively connected with the two sets of pull plates (25), the inner ends of the two sets of pull rods (24) respectively penetrate through the two sets of second ball sets and respectively extend into the inner sides of the two, the controller body (1) is placed at the top end of the supporting plate (4), and the controller body (1) is clamped between the two groups of clamping plates (23).

5. The wireless combustible gas remote control device according to claim 4, further comprising a belt ring (26) and an elastic bandage (27), wherein one end of the elastic bandage (27) is connected with the belt ring (26), an insertion block (28) is arranged on the belt ring (26), a plurality of sets of limiting holes (29) are arranged on the elastic bandage (27) in a communicating manner, and the insertion block (28) is inserted into one set of limiting holes (29) among the plurality of sets of limiting holes (29).

6. The wireless combustible gas remote control device according to claim 5, further comprising two sets of sliding posts (30), two sets of connecting posts (31), a driving post (32), a mounting plate (33) and bristles (34), wherein two sets of sliding grooves (35) are transversely arranged on the front side of the controller body (1), the two sets of sliding grooves (35) are respectively located on the upper side and the lower side of the display screen (2), the two sets of sliding posts (30) are respectively slidably fixed on the two sets of sliding grooves (35), one end of each of the two sets of connecting posts (31) is respectively connected with the two sets of sliding posts (30), the other end of each of the two sets of connecting posts (31) is respectively connected with the top end and the bottom end of the driving post (32), the bristles (34) are mounted on the rear side of the mounting plate (33), and the bristles.

7. The wireless remote control device for combustible gas according to claim 6, further comprising a plurality of sets of third springs (36) and a plurality of sets of third telescopic tubes, wherein one end of each set of third springs (36) is connected to the mounting plate (33), the other end of each set of third springs (36) is connected to the driving post (32), one end of each set of third telescopic tubes is connected to the mounting plate (33), the other end of each set of third telescopic tubes is connected to the driving post (32), and the sets of third springs (36) are respectively sleeved outside the sets of third telescopic tubes.

8. The wireless combustible gas remote control device according to claim 7, further comprising a fixed column (37) and a protective cover (38), wherein the fixed column (37) is installed on the front side of the controller body (1), the fixed column (37) is located above the control key group (3), the top end of the protective cover (38) is hinged with the fixed column (37), and the control key is located inside the protective cover (38).

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