CN111616943A

CN111616943A - Postpartum shank massage device for pregnant woman in obstetrics and gynecology department

Info

Publication number: CN111616943A
Application number: CN202010510344.2A
Authority: CN
Inventors: 朱姗姗
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-09-04

Abstract

The invention relates to the technical field of leg massage equipment, in particular to a postpartum shank massage device for pregnant women in obstetrics and gynecology department, which comprises a foot massage device, a support column, a cross rod, a fixed block, a leg massage device and two beating and relaxing devices, wherein the support column is vertically arranged, the foot massage device is connected with the bottom of the support column, the cross rod penetrates through the middle position of the support column, the two beating and relaxing devices are symmetrically arranged at two ends of the cross rod, the fixed block is sleeved on the support column and can slide up and down along the support column, and the leg massage device is connected with the fixed block. Realizes that the massage acupuncture points can be adjusted in the leg massage process.

Description

Postpartum shank massage device for pregnant woman in obstetrics and gynecology department

Technical Field

The invention relates to the technical field of leg massage equipment, in particular to a postpartum shank massage device for a pregnant woman in obstetrics and gynecology department.

Background

The pregnant woman is weak after parturition, need lie in bed for a long time and have a rest, because long-time bed, the shank of lying in woman has not obtained effectual exercise, its blood is not circulated, cause the shank swelling easily, be unfavorable for lying in woman's postpartum recovery, consequently need family members or nursing staff appropriate to massage and relax the shank acupuncture point, can promote the blood circulation of shank, improve the metabolism, help improving the problem of pregnant woman's postpartum leg pain or low limbs edema, also can alleviate lying in woman's fatigue, but it causes the waste of manpower resources, nursing staff or family members cause the arm ache easily when massage time is longer simultaneously. Therefore, it is necessary to provide a massage apparatus to massage instead of human power.

If a pregnant woman postpartum shank massage device of the obstetrics and gynecology department with the publication number of CN110638609A, comprises a placing plate, two foot placing plates, two first air bags and a massage device, wherein the rear end of the placing plate is provided with a side plate which is vertical to the placing plate; the two foot placing plates are oppositely arranged on the upper surface of the placing plate from left to right, the two foot placing plates can slide on the placing plate along the front-back direction, a gear is arranged between the two foot placing plates, and one side surfaces of the two foot placing plates close to the gear are both provided with a rack meshed with the gear; the two first air bags are arranged on the front surface of the side plate in a left-right opposite mode, and the front ends of the two first air bags are connected with the rear ends of the two foot placing plates respectively; the massage device comprises two massage puttee bodies which can be bound on the lower legs of patients, the two massage puttee bodies are connected with the two first air bags through air ducts, and the second air bags which are connected and communicated with the air ducts are arranged inside the two massage puttee bodies.

The device has the following problems: the leg massage function is not comprehensive enough, only the leg can be massaged, the leg muscle can not be flapped to relax before the leg massage, and the blood circulation can not be fully promoted; secondly, the design is not flexible enough, the massage acupuncture points can not be adjusted during massage, and the massage effect is realized only by extruding the leg parts through the air bags; thirdly, the function is too single, only can massage the legs, can not massage the soles, and after the legs are massaged, in order to ensure that the lying-in woman carries out sufficient blood circulation, the soles can also be massaged, thereby fully relieving the fatigue of the lying-in woman.

Disclosure of Invention

The invention aims to provide a postpartum shank massage device for pregnant women in obstetrics and gynecology department, and aims to solve the technical problems that massage acupuncture points cannot be adjusted when leg muscles are not relaxed and leg massage is not carried out before leg massage of the pregnant women, and foot massage is carried out after leg massage.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a gynaecology and obstetrics pregnant woman shank massage device postpartum, includes sole massage device, support column, horizontal pole, fixed block, shank massage device and two and beats and relax the device, the support column is and erects the setting, sole massage device is connected with the support column bottom, the horizontal pole level sets up, the horizontal pole passes from the support column intermediate position, two it beats and relaxs the device symmetry setting and beat at the both ends of horizontal pole and two and relax the device all with horizontal pole sliding fit, the fixed block overlaps on the support column, the support column can be followed to the fixed block and slides from top to bottom, shank massage device is connected with the fixed block and shank massage device is located the top of sole massage device, be equipped with the screw bolt on the fixed block, the fixed block passes through screw bolt and.

Further, the foot massage device includes bed plate and base shell and two foot massage gyro wheels, the bed plate level sets up the bottom at the support column, base shell sets up on the bed plate, two the foot massage gyro wheel is transversely installed on the bed plate symmetrically, two the height that highly is higher than the base of foot massage gyro wheel is equipped with the trompil on the position that corresponds with two massage gyro wheels on the base shell, every the foot massage gyro wheel all includes gyro wheel and two unable adjustment bases, two unable adjustment base symmetry sets up in the bed plate and two unable adjustment bases are vertical setting, the both ends of gyro wheel are rotated and are connected on two unable adjustment bases, be equipped with a plurality of flexible massage pieces that are the circumference and set up on the gyro wheel.

Further, every it all includes dead lever, palm formula beater and electric jar to pat the relaxation device, the one end of dead lever is equipped with square trompil and overlaps in horizontal pole one end and with horizontal pole sliding fit, palm formula beater is articulated with the other end of dead lever, the pole that links up is installed to the dead lever lateral wall, palm formula beater lateral wall is installed articulated frame, the afterbody of electric jar is installed and is linked up the piece, the afterbody of electric jar is articulated with linking up the pole through linking up the piece, the drive end and the articulated frame of electric jar articulate.

Furthermore, an acupuncture point massage pad is arranged on the palm type beater and is arranged on the inner side wall of the palm type beater.

Further, shank massage device includes shank massage subassembly and removal subassembly, it sets up on the fixed block to remove the subassembly, shank massage subassembly sets up on removing the subassembly, it includes fixed box, circular arc guide rail, slide bar and four bolts to remove the subassembly, fixed box passes through the screw lock solid on the fixed block, fixed box bottom is equipped with four screw holes, be equipped with four screw holes on the circular arc guide rail equally, the circular arc guide rail passes through four bolt fastening in fixed box, the slide setting on the circular arc guide rail and with circular arc guide rail sliding fit. The bottom of slide bar and the top fixed connection of slide and the vertical setting of slide bar, be equipped with the circular arc slide on the fixed box, slide bar and circular arc slide sliding fit, the top of slide bar is equipped with rather than threaded connection's fixed knob.

Further, shank massage subassembly includes motor box, motor, cam, movable block, carriage release lever, fixed plate and massage hammer, motor box and slide fixed connection, the motor sets up in the motor box, the cam is used for the eccentric setting of output of motor, the vertical setting of fixed plate is in the motor box, the movable block setting is in the one end of carriage release lever and with cam sliding fit, the carriage release lever level set up on the fixed plate and with fixed plate sliding fit, the cover is equipped with the spring on the carriage release lever, the both ends of spring are connected with movable block and fixed plate respectively, the massage hammer sets up the outside that is located the fixed box at the one end of carriage release lever and massage hammer, be equipped with the shifting chute that supplies the carriage release lever to remove on the lateral wall of fixed box.

Compared with the prior art, the invention has the beneficial effects that:

firstly, before the leg massage is carried out on the lying-in woman, the leg to be massaged is placed between the two clapper-type flappers, because the legs of each person are different in thickness, the fixed rod of the clapper-type flapping device can be moved to move horizontally on the cross rod, the distance between the two clapper and the leg can be adjusted, after the distance is adjusted to be proper, when the palm type beater device is started, the driving end on the electric cylinder can drive the hinged frame on the palm type beater to move, meanwhile, the hinged frame drives the palm type beater to rotate in a small range, pat shank muscle, be equipped with acupuncture point massage pad on the clapper formula beater, acupuncture point massage pad is installed on clapper formula beater inside wall, and the lying-in woman can carry out the massage of certain degree to shank acupuncture point when relaxing shank muscle, has realized that the lying-in woman relaxs the problem of shank muscle through patting before shank massage.

Secondly, when the leg massage is carried out on the lying-in woman, the position of the massage hammer is often required to be adjusted so as to massage different acupuncture points, when the adjustment is carried out, the lying-in woman can firstly loosen the fixing knob on the sliding rod, then the sliding rod is moved, the sliding rod drives the sliding seat to slide on the arc guide rail, the sliding seat drives the motor box to move, the moving rod in the motor box drives the massage hammer to move, and after the position of the massage hammer is adjusted, the fixing knob is screwed on, so that the problem that the lying-in woman can adjust the massage acupuncture points in the leg massage process is solved.

Thirdly, after the lying-in woman massages the legs, the lying-in woman can put the feet on the two foot massage rollers on the foot massage device 1, the rollers are provided with a plurality of flexible massage blocks which are arranged circumferentially, when the lying-in woman uses, the rollers can rotate on the connecting shaft by taking the connecting shaft as the center, the feet step on the rollers and can move forwards or backwards, the feet massage the feet, and the problem that the lying-in woman massages the feet after the leg massage is solved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the foot massage device of the present invention;

FIG. 3 is a schematic perspective view of the sole massage roller according to the present invention;

FIG. 4 is a schematic perspective view of the tapping and relaxing device of the present invention;

fig. 5 is a schematic perspective view of the leg massage device of the present invention;

fig. 6 is a perspective view of the sliding assembly of the leg massage device of the present invention;

fig. 7 is a perspective view of the massage assembly of the leg massage device of the present invention.

The reference numbers in the figures are: the foot massage device comprises a foot massage device 1, a base plate 11, a base shell 12, two foot massage rollers 13, rollers 131, two fixed bases 132, a flexible massage block 133, a connecting shaft 134, two beating and relaxing devices 2, a fixed rod 21, a palm type beater 22, an electric cylinder 23, an engaging rod 24, a hinged frame 25, an engaging block 26, an acupuncture point massage pad 27, a leg massage device 3, a moving component 31, a fixed box 311, an arc guide rail 312, a sliding seat 313, a sliding rod 314, four bolts 315, a fixed knob 316, an arc slideway 317, a massage component 32, a motor box 321, a motor 322, a cam 323, a moving block 324, a moving rod 325, a fixed plate 326, a massage hammer 327, a spring 328, a moving groove 329, a support column 4, a cross rod 5 and a fixed block 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1 to 7, the invention provides a postpartum shank massage device for a pregnant woman in obstetrics and gynecology department, which comprises a foot bottom massage device 1, a support pillar 4, a cross bar 5, a fixed block 6, a leg massage device 3 and two beating and relaxing devices 2, the supporting column 4 is vertically arranged, the foot bottom massage device 1 is connected with the bottom of the supporting column 4, the cross bar 5 is horizontally arranged, the cross bar 5 penetrates through the middle position of the support column 4, the two beating and relaxing devices 2 are symmetrically arranged at two ends of the cross bar 5, the two beating and relaxing devices 2 are in sliding fit with the cross bar 5, the fixed block 6 is sleeved on the support column 4, the fixed block 6 can slide up and down along the support column 4, the leg massage device 3 is connected with the fixed block 6, the leg massage device 3 is positioned above the foot massage device 1, the fixed block 6 is provided with a threaded bolt, and the fixed block 6 is fixedly connected with the support column 4 through the threaded bolt; before the shank massage, can place the shank earlier in two and pat between relaxing device 2, two pat and relax device 2 can slide adjustment and the interval between the shank again on horizontal pole 5, then carry out the shank and pat and relax, the shank relaxs the back, move fixed block 6 to the position that needs the massage with the shank and align, start shank massage device 3 and massage, after the shank massage, place the foot on sole massage device 1, carry out sole massage.

The foot massage device 1 comprises a base plate 11, a base shell 12 and two foot massage rollers 13, wherein the base plate 11 is horizontally arranged at the bottom of a support column 4, the base shell 12 is arranged on the base plate 11, the two foot massage rollers 13 are transversely and symmetrically arranged on the base plate 11, the heights of the two foot massage rollers 13 are higher than the heights of the bases, holes are formed in the positions, corresponding to the two massage rollers 131, on the base shell 12, each foot massage roller 13 comprises a roller 131 and two fixed bases 132, the two fixed bases 132 are symmetrically arranged in the base plate 11, the two fixed bases 132 are vertically arranged, the two ends of each roller 131 are rotatably connected to the two fixed bases 132, and a plurality of flexible massage blocks 133 which are circumferentially arranged are arranged on the rollers 131; when the foot massage device is used, the roller 131 can rotate on the connecting shaft 134 by taking the connecting shaft 134 as a center, a user can move forwards or backwards by stepping on the roller 131 by feet, and the flexible massage blocks 133 rotate to massage the soles.

Every it all includes dead lever 21, palm formula beater 22 and electric jar 23 to pat relaxation device 2, the one end of dead lever 21 is equipped with square trompil and overlaps in horizontal pole 5 one end and with horizontal pole 5 sliding fit, palm formula beater 22 is articulated with the other end of dead lever 21, dead lever 21 lateral wall is installed and is linked up pole 24, palm formula beater 22 lateral wall is installed and is articulated frame 25, the afterbody of electric jar 23 is installed and is linked up piece 26, the afterbody of electric jar 23 is articulated with linking pole 24 through linking up piece 26, the drive end of electric jar 23 is articulated with articulated frame 25; the connection block 26 is used for installing and supporting the electric cylinder 23, when the electric cylinder flapping machine is used, the fixing rod 21 of the flapping loosening device 2 can be moved to move horizontally on the transverse rod 5 left and right, the distance between the two palm-type flapping devices 22 and the leg can be adjusted, after the proper distance is adjusted, the palm-type flapping device is started, the driving end on the electric cylinder 23 can drive the hinge frame 25 on the palm-type flapping device 22 to move, meanwhile, the hinge frame 25 drives the palm-type flapping device 22 to rotate in a small range, and muscles of the leg are flapped.

The palm beater 22 is provided with an acupuncture point massage pad 27, and the acupuncture point massage pad 27 is arranged on the inner side wall of the palm beater 22; the user can massage the acupuncture points of the legs to a certain degree while relaxing the muscles of the legs.

The leg massage device 3 comprises a leg massage component 32 and a moving component 31, the moving component 31 is arranged on a fixed block 6, the leg massage component 32 is arranged on the moving component 31, the moving component 31 comprises a fixed box 311, an arc guide rail 312, a sliding seat 313, a sliding rod 314 and four bolts 315, the fixed box 311 is locked on the fixed block 6 through screws, four threaded holes are formed in the bottom of the fixed box 311, four threaded holes are also formed in the arc guide rail 312, the arc guide rail 312 is fixed in the fixed box 311 through the four bolts 315, and the sliding seat 313 is arranged on the arc guide rail 312 and is in sliding fit with the arc guide rail 312. The bottom of the sliding rod 314 is fixedly connected with the top of the sliding base 313, the sliding rod 314 is vertically arranged, an arc slideway 317 is arranged on the fixed box 311, the sliding rod 314 is in sliding fit with the arc slideway 317, and a fixed knob 316 in threaded connection with the top of the sliding rod 314 is arranged at the top of the sliding rod 314; when the massage device is used, the fixing knob 316 on the sliding rod 314 is firstly loosened, then the sliding rod 314 is moved, the sliding rod 314 drives the sliding seat 313 to slide on the arc guide rail 312, the sliding seat 313 drives the motor box 321 to move, the moving rod 325 in the motor box 321 drives the massage hammer 327 to move, and after the position of the massage hammer 327 is adjusted, the fixing knob 316 is screwed on, so that the massage acupuncture points can be adjusted in the leg massage process.

The leg massage assembly 32 comprises a motor box 321, a motor 322, a cam 323, a moving block 324, a moving rod 325, a fixed plate 326 and a massage hammer 327, wherein the motor box 321 is fixedly connected with the sliding seat 313, the motor 322 is arranged in the motor box 321, the cam 323 is used for eccentric arrangement of an output end of the motor 322, the fixed plate 326 is vertically arranged in the motor box 321, the moving block 324 is arranged at one end of the moving rod 325 and is in sliding fit with the cam 323, the moving rod 325 is horizontally arranged on the fixed plate 326 and is in sliding fit with the fixed plate 326, a spring 328 is sleeved on the moving rod 325, two ends of the spring 328 are respectively connected with the moving block 324 and the fixed plate 326, the massage hammer 327 is arranged at one end of the moving rod 325, the massage hammer 327 is located outside the fixed box 311, and a moving groove 329 for movement of the moving rod 325 is arranged on a side wall of the; when the massage hammer 327 is used, the output end of the motor 322 drives the cam 323 to rotate, the cam 323 drives the moving block 324 to move forwards, the moving block 324 drives the spring 328 to tighten and drives the moving rod 325 to move forwards linearly, the moving rod 325 drives the massage hammer 327 to move forwards linearly, then the spring 328 is loosened to drive the moving block 324 to move backwards linearly, and the moving block 324 drives the moving rod 325 and drives the massage hammer 327 to move backwards linearly, so that the massage hammer 327 can do linear reciprocating motion repeatedly all the time, and the massage effect of the massage hammer 327 is achieved.

The working principle of the invention is as follows: when the patting and relaxing device 2 is used, the fixing rod 21 of the patting and relaxing device 2 can be moved to translate left and right on the cross rod 5, the distance between the two palm-type patting devices 22 and the leg can be adjusted, after the distance is adjusted to be proper, the palm-type patting device is started, the driving end on the electric cylinder 23 can drive the hinge frame 25 on the palm-type patting device 22 to move, and meanwhile, the hinge frame 25 drives the palm-type patting device 22 to rotate in a small range to patte the leg muscles; when the leg massage device 3 is used, the output end of the motor 322 drives the cam 323 to rotate, the cam 323 drives the moving block 324 to move forward, the moving block 324 drives the spring 328 to tighten and drive the moving rod 325 to move linearly forward, the moving rod 325 drives the massage hammer 327 to move linearly forward, then the spring 328 relaxes and drives the moving block 324 to move linearly backward, and the moving block 324 drives the moving rod 325 and drives the massage hammer 327 to move linearly backward, so that the massage hammer 327 can do linear reciprocating motion repeatedly all the time, and the massage effect of the massage hammer 327 is realized. Loosening the fixed knob 316 on the sliding rod 314, then moving the sliding rod 314, the sliding rod 314 drives the sliding seat 313 to slide on the arc guide rail 312, the sliding seat 313 drives the motor box 321 to move, the moving rod 325 in the motor box 321 drives the massage hammer 327 to move, and after the position of the massage hammer 327 is adjusted, the fixed knob 316 is screwed on, so that the massage acupuncture points can be adjusted in the leg massaging process; when the foot massage device 1 is used, the roller 131 can rotate on the connecting shaft 134 with the connecting shaft 134 as the center, the user can move forward or backward when stepping on the roller 131 by the foot, and the flexible massage block 133 rotates to massage the foot.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a gynaecology and obstetrics pregnant woman shank massage device postpartum, its characterized in that includes sole massage device (1), support column (4), horizontal pole (5), fixed block (6), shank massage device (3) and two beats relaxation device (2), support column (4) are erectly to be set up, sole massage device (1) is connected bottom support column (4), horizontal pole (5) level sets up, horizontal pole (5) are passed from support column (4) intermediate position, two it all with horizontal pole (5) sliding fit to beat relaxation device (2) symmetry setting at the both ends of horizontal pole (5) and two, fixed block (6) cover is on support column 4, support column (4) can be followed in fixed block (6) and slide from top to bottom, shank massage device (3) are connected with fixed block (6) and shank massage device (3) are located the top of sole massage device (1), the fixing block (6) is provided with a threaded bolt, and the fixing block (6) is fixedly connected with the support column (4) through the threaded bolt.

2. The device for massaging postpartum calves of pregnant women in obstetrics and gynecology department according to claim 1, wherein: the foot massage device (1) comprises a base plate (11), a base shell (12) and two foot massage rollers (13), wherein the base plate (11) is horizontally arranged at the bottom of a support column (4), the base shell (12) is arranged on the base plate (11), the two foot massage rollers (13) are transversely and symmetrically arranged on the base plate (11), the two foot massage rollers (13) are higher than the base, open holes are formed in positions, corresponding to the two rollers (131), on the base shell (12), each foot massage roller (13) comprises a roller (131) and two fixed bases (132), the two fixed bases (132) are symmetrically arranged in the base plate (11), the two fixed bases (132) are vertically arranged, the two ends of each roller (131) are rotatably connected to the two fixed bases (132), the roller (131) is provided with a plurality of flexible massage blocks (133) which are arranged in a circumferential manner.

3. The device for massaging postpartum calves of pregnant women in obstetrics and gynecology department according to claim 1, wherein: every it all includes dead lever (21), palm formula beater (22) and electric jar (23) to pat to relax device (2), the one end of dead lever (21) is equipped with square trompil and overlaps in horizontal pole (5) one end and with 5 sliding fit of horizontal pole, palm formula beater (22) is articulated with the other end of dead lever (21), link rod (24) are installed to dead lever (21) lateral wall, articulated frame (25) are installed to palm formula beater (22) lateral wall, link block (26) are installed to the afterbody of electric jar (23), the afterbody of electric jar (23) is articulated through link block (26) and link rod (24), the drive end and the articulated frame (25) of electric jar (23) are articulated.

4. The device for massaging postpartum calves of pregnant women in obstetrics and gynecology department according to claim 3, wherein: be equipped with acupuncture point massage pad (27) on clapper formula (22), acupuncture point massage pad (27) are installed on clapper formula (22) inside wall.

5. The device for massaging postpartum calves of pregnant women in obstetrics and gynecology department according to claim 1, wherein: the leg massage device (3) comprises a leg massage component (32) and a moving component (31), the moving component (31) is arranged on a fixed block (6), the leg massage component (32) is arranged on the moving component (31), the moving component (31) comprises a fixed box (311), an arc guide rail (312), a sliding seat (313), a sliding rod (314) and four bolts (315), the fixed box (311) is locked on the fixed block (6) through screws, four threaded holes are formed in the bottom of the fixed box (311), four threaded holes are also formed in the arc guide rail (312), the arc guide rail (312) is fixed in the fixed box (311) through the four bolts (315), the sliding seat (313) is arranged on the arc guide rail (312) and is in sliding fit with the arc guide rail (312), the bottom of the sliding rod (314) is fixedly connected with the top of the sliding seat (313) and the sliding rod (314) is vertically arranged, be equipped with circular arc slide (317) on fixed box (311), slide bar (314) and circular arc slide (317) sliding fit, the top of slide bar (314) is equipped with rather than threaded connection's fixed knob (316).

6. The device for massaging postpartum calves of pregnant women in obstetrics and gynecology department according to claim 5, wherein: the leg massage assembly (32) comprises a motor box (321), a motor (322), a cam (323), a moving block (324), a moving rod (325), a fixing plate (326) and a massage hammer (327), the motor box (321) is fixedly connected with a sliding seat (313), the motor (322) is arranged in the motor box (321), the cam (323) is used for enabling an output end of the motor (322) to be eccentrically arranged, the fixing plate (326) is vertically arranged in the motor box (321), the moving block (324) is arranged at one end of the moving rod (325) and is in sliding fit with the cam (323), the moving rod (325) is horizontally arranged on the fixing plate (326) and is in sliding fit with the fixing plate (326), a spring (328) is sleeved on the moving rod (325), two ends of the spring (328) are respectively connected with the moving block (324) and the fixing plate (326), the massage hammer (327) is arranged at one end of the moving rod (325), and the massage hammer (327) is located on the fixing plate (311) And a moving groove (329) for moving the moving rod (325) is arranged on the side wall of the fixed box (311).