阅读说明：本技术 一种机械控制用角度调整限位器 (Angle adjustment stopper for mechanical control ) 是由 薛婷 于 2021-02-02 设计创作，主要内容包括：本发明属于角度限位调节技术领域,且公开了一种机械控制用角度调整限位器,包括上外壳和下外壳,所述上外壳和下外壳固定连接,所述下外壳内腔的底部固定安装有限位板,所述上外壳的顶部固定安装有导油管和油管固定板,所述导油管与油管固定板为一整体,所述顶端的外表面活动套接有一号弹簧。本发明通过导油管中的液压油向下挤压,液压油将导油管底端内腔中的后活塞和前活塞分别向两端挤推,将外部的后移动调角盘和前移动调节盘分别向两端推离,从而令原本啮合的固定调角盘和移动调角盘脱离啮合状态,此时限位被消除,工作人员可以通过转动调节钮进行双向调节,弥补了传统棘轮式调节单向调节的不足,提高了调节效率,提高了实用性。(The invention belongs to the technical field of angle limiting adjustment, and discloses an angle adjusting limiter for mechanical control, which comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are fixedly connected, a limiting plate is fixedly arranged at the bottom of an inner cavity of the lower shell, an oil guide pipe and an oil pipe fixing plate are fixedly arranged at the top of the upper shell, the oil guide pipe and the oil pipe fixing plate are integrated, and a first spring is movably sleeved on the outer surface of the top end of the oil guide pipe and the oil pipe fixing plate. According to the invention, hydraulic oil in the oil guide pipe is extruded downwards, the rear piston and the front piston in the inner cavity at the bottom end of the oil guide pipe are respectively pushed towards two ends by the hydraulic oil, and the external rear movable angle adjusting disc and the external front movable angle adjusting disc are respectively pushed away towards two ends, so that the originally meshed fixed angle adjusting disc and the movable angle adjusting disc are separated from a meshed state, the limit is eliminated at the moment, a worker can perform bidirectional adjustment by rotating the adjusting knob, the defect of unidirectional adjustment of the traditional ratchet type adjustment is overcome, the adjustment efficiency is improved, and the practicability is improved.)

1. The utility model provides an angular adjustment stopper for mechanical control, includes shell (1) and lower shell (2), its characterized in that: go up shell (1) and lower shell (2) fixed connection, the bottom fixed mounting of shell (2) inner chamber has limiting plate (19) down, the top fixed mounting of going up shell (1) has oil pipe (4) and oil pipe fixed plate (5) of leading, it is a whole with oil pipe fixed plate (5) to lead oil pipe (4), the surface activity on lead oil pipe (4) top has cup jointed spring (6) No. one, the top and the bottom of spring (6) contact with press handle (3) and fixed plate (5) respectively, the inside activity of leading oil pipe (4) has cup jointed guide arm (7), the top fixed mounting of guide arm (7) has press handle (3), the bottom fixed mounting of guide arm (7) has pressed oil piston (8), press oil piston (8) activity to cup joint in the inner chamber of leading oil pipe (4), the outside activity on lead oil pipe (4) top has cup jointed and has led oil pipe (4), lead the top and the bottom of oil pipe (4) and contact respectively in pressing handle (3) and oil pipe fixed plate (5), the bottom of leading oil pipe (4) extends to in the inner chamber of shell (1) and lower shell (2), the both ends of leading oil pipe (4) bottom respectively movable mounting have back regulation module (9) and preceding regulation module (10), the equal fixed mounting in both ends of going up shell (1) and lower shell (2) has backplate (13), is located anteriorly backplate (13) fixed mounting has square board (14), the positive fixed mounting of square board (14) has calibrated scale (15), backplate (13) are installed respectively around dwang (11) before and after adjusting module (9) and preceding regulation module (10) outside and all being provided with No. two spring (12), the equal fixed mounting in both ends of going up shell (1) and lower shell (2) has backplate (13), is located anteriorly backplate (13) fixed mounting has square board (14), the positive fixed mounting of square board (14), Square board (14) and calibrated scale (15) run through and extend to the outside, the front end fixed mounting of dwang (11) has pointer (16) and adjusting knob (17), the rear end fixed mounting of dwang (11) has joint (18), the surface of oil pipe (4) bottom is led and is provided with two spacing rings (20), two spacing ring (20) activity joint is between two limiting plates (19).

2. The angular adjustment stopper for machine control according to claim 1, wherein: the rear adjusting module (9) comprises a rear piston rod (901), a rear piston (902) and a rear fixing plate (905) are fixedly installed at the inner end and the outer end of the rear piston rod (901) respectively, a rear movable angle adjusting disc (904) is fixedly installed on the inner side of the rear fixing plate (905), the rear movable angle adjusting disc (904) is fixedly sleeved on the rear piston rod (901), a rear fixed angle adjusting disc is arranged on the inner side of the rear movable angle adjusting disc (904), the rear fixed angle adjusting disc is movably sleeved with the rear piston rod (901), the rear fixed angle adjusting disc is fixedly connected with the inner cavity wall of the lower shell (2), the rear piston rod (901) and the rear piston (902) are movably sleeved inside the oil guide pipe (4), and the rotating rods (11) are movably sleeved on the inner sides of the rear piston rod (901) and the rear piston (902).

3. The angular adjustment stopper for machine control according to claim 1, wherein: preceding regulation module (10) include preceding piston rod (1001), the inside and outside both ends of preceding piston rod (1001) are fixed mounting respectively before piston (1002) and preceding fixed plate (1005), the inboard fixed mounting of preceding fixed plate (1005) has preceding movable adjusting disk (1004), preceding movable adjusting disk (1004) is fixed to be cup jointed in preceding piston rod (1001), the inboard meshing of preceding movable adjusting disk (10004) is connected with preceding fixed angle adjusting disk (1003), preceding fixed angle adjusting disk (1003) is cup jointed with preceding piston rod (1001) activity, preceding fixed angle adjusting disk (1003) is connected with the inner chamber wall fixed connection of lower shell (2), preceding piston rod (1001) and preceding piston (1002) activity are cup jointed in the inside of leading oil pipe (4), the inboard activity of preceding piston rod (1001) and preceding piston (1002) is cup jointed dwang (11).

4. The angular adjustment stopper for machine control according to claim 1, wherein: the oil guide pipe (4) is in an inverted T shape, and the rear adjusting module (9) and the front adjusting module (10) are movably mounted at the bottom end of the oil guide pipe (4) with two side outer edges.

5. The angular adjustment stopper for machine control according to claim 1, wherein: dwang (11) are by preceding three parts after well, two parts are the cylindric that size specification is the same around dwang (11), the surface of dwang (111) middle part is provided with strip arch, the middle part and the back piston rod (901) of dwang (11) are cup jointed with back piston (902) activity.

6. The angular adjustment stopper for machine control according to claim 2, wherein: the rear piston rod (901) and the rear piston (902) are internally provided with strip-shaped grooves matched with the strip-shaped bulges on the surface of the rotating rod (11), the shape and the specification of the rear piston rod (901) and the shape and the specification of the front piston rod (1001) are completely the same, and the shape and the specification of the rear piston (902) and the shape and the specification of the front piston (1002) are completely the same.

7. The angular adjustment stopper for machine control according to claim 2, wherein: the inner side surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc (904) are uniformly provided with rectangular teeth with the same size, the number of the rectangular teeth arranged on the surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc (904) is one hundred eighty, and the teeth on the surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc (904) are not meshed with each other but are in a mutually jacking state.

8. The angular adjustment stopper for machine control according to claim 3, wherein: the external form and specification of the front fixed angle adjusting disc (1003) are completely consistent with those of the rear fixed angle adjusting disc, the external form and specification of the front movable angle adjusting disc (1004) are completely consistent with those of the rear movable angle adjusting disc (904), and teeth on the surfaces of the front fixed angle adjusting disc (1003) and the front movable angle adjusting disc (1004) are meshed with each other.

9. The angular adjustment stopper for machine control according to claim 3, wherein: the teeth on the surfaces of the rear fixed angle adjusting disc and the front fixed angle adjusting disc (1003) are not aligned but staggered by one degree.

10. The angular adjustment stopper for machine control according to claim 1, wherein: the surface of the dial (15) presents three hundred sixty scales and the unit scale is one degree, and the rotating rod (11), the pointer (16) and the adjusting button (17) always present synchronous rotation.

Technical Field

The invention belongs to the technical field of angle limiting and adjusting, and particularly relates to an angle adjusting limiter for mechanical control.

Background

The angle adjustment limiter is generally widely applied to the field of machining, for example, rotation angle adjustment is carried out on a tool and a related station on a lathe, but the existing angle adjustment limiter has the defect that the existing angle adjustment limiter needs to be improved, the existing angle adjustment limiter generally adopts a ratchet wheel matched with a clamping block for limiting to carry out angle adjustment, the shape of the ratchet wheel is limited, a worker can only rotate towards one direction when adjusting, clockwise or anticlockwise, but not bidirectionally rotate, great inconvenience is brought to adjustment, and the limiting is limited by the fact that when the ratchet wheel carries out angle adjustment, the clamping block can only be clamped with one tooth of the ratchet wheel, and therefore under a heavy-load working environment, the supporting strength provided by one tooth of the ratchet wheel is extremely limited.

And the ratchet wheel with small volume cannot be turned with a plurality of teeth on the surface because of the limitation of the whole size of the angle adjusting limiter, and the minimum rotation angle of the ratchet wheel is larger when the ratchet wheel is adjusted, so that fine adjustment cannot be realized, and the adjustment precision is lower.

Disclosure of Invention

The present invention is directed to an angle adjustment limiter for mechanical control, which solves the above problems in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme: an angle adjustment limiter for mechanical control comprises an upper shell and a lower shell, wherein the upper shell is fixedly connected with the lower shell, a limiting plate is fixedly arranged at the bottom of an inner cavity of the lower shell, an oil guide pipe and an oil pipe fixing plate are fixedly arranged at the top of the upper shell, the oil guide pipe and the oil pipe fixing plate are integrated, a spring is movably sleeved on the outer surface of the top end of the oil guide pipe, the top end and the bottom end of the spring are respectively contacted with the spring, a guide rod is movably sleeved on the inner part of the oil guide pipe, a pressing handle is fixedly arranged at the top of the guide rod, an oil pressing piston is fixedly arranged at the bottom of the guide rod and movably sleeved in the inner cavity of the oil guide pipe, the oil guide pipe is movably sleeved on the outer part of the top end of the oil guide pipe, the top end and the bottom end of the oil guide pipe are respectively contacted with the pressing handle and the oil pipe fixing plate, the, lead the both ends of oil pipe bottom movable mounting respectively have back regulation module and preceding regulation module, the dwang has been cup jointed in the axis activity of back regulation module and preceding regulation module, the back regulation module all is provided with No. two springs with the preceding regulation module outside, the equal fixed mounting in both ends of going up shell and lower shell has the backplate, is located anteriorly backplate fixed mounting has square board, the positive fixed mounting of square board has the calibrated scale, run through backplate, square board and calibrated scale respectively and extend to the outside around the dwang, the front end fixed mounting of dwang has pointer and adjust knob, the rear end fixed mounting of dwang has the joint, the surface of leading the oil pipe bottom is provided with two spacing rings, two spacing ring activity joint is between two limiting plates.

Preferably, the rear adjusting module comprises a rear piston rod, a rear piston and a rear fixed plate are respectively and fixedly mounted at the inner end and the outer end of the rear piston rod, a rear movable angle adjusting disc is fixedly mounted on the inner side of the rear fixed plate, the rear movable angle adjusting disc is fixedly sleeved on the rear piston rod, a rear fixed angle adjusting disc is arranged on the inner side of the rear movable angle adjusting disc, the rear fixed angle adjusting disc is movably sleeved with the rear piston rod, the rear fixed angle adjusting disc is fixedly connected with the inner cavity wall of the lower shell, the rear piston rod and the rear piston are movably sleeved in the oil guide pipe, and rotating rods are movably sleeved on the inner sides of the rear piston rod and the rear piston.

Preferably, the front adjusting module comprises a front piston rod, the inner end and the outer end of the front piston rod are respectively and fixedly provided with a front piston and a front fixed plate, the inner side of the front fixed plate is fixedly provided with a front movable adjusting disc, the front movable adjusting disc is fixedly sleeved on the front piston rod, the inner side of the front movable adjusting disc is meshed with a front fixed angle adjusting disc, the front fixed angle adjusting disc is movably sleeved with the front piston rod, the front fixed angle adjusting disc is fixedly connected with the inner cavity wall of the lower shell, the front piston rod and the front piston are movably sleeved in the oil guide pipe, and the inner sides of the front piston rod and the front piston are movably sleeved with rotating rods.

Preferably, the oil guide pipe is in an inverted T shape, the rear adjusting module and the front adjusting module are movably mounted at the bottom end of the oil guide pipe with two outer edges, the rear piston and the front piston are both located in the inner cavity at the bottom end of the oil guide pipe, the oil pressing piston is located in the inner cavity at the upper part of the oil guide pipe, when the oil pressing piston is subjected to an external force and moves downwards along the inner cavity of the oil guide pipe, hydraulic oil in the oil guide pipe is extruded downwards, the rear piston and the front piston in the inner cavity at the bottom end of the oil guide pipe are respectively extruded and pushed towards two ends by the hydraulic oil, the purpose of the operation is to respectively push away the external rear movable angle adjusting disc and the external front movable adjusting disc towards two ends, if the rear fixed angle adjusting disc and the rear movable angle adjusting disc or the front fixed angle adjusting disc and the front movable adjusting disc originally present an engaged state, the engaged state is separated along with the self pushed away, and then when the adjusting knob is externally rotated, the front movable adjusting disk and the rear movable adjusting disk can be rotated simultaneously.

Preferably, the dwang comprises three parts in the front and back, two parts are the cylindric that the size and specification is the same around the dwang, the surface of dwang mid portion is provided with the strip arch, the mid portion and the back piston rod of dwang cup joint with the back piston activity.

Preferably, the inside of back piston rod and back piston is seted up with the bar recess of the protruding looks adaptation of dwang surface strip, the shape specification of back piston rod and preceding piston rod is the same completely, the shape specification of back piston and preceding piston is the same completely, because the strip on dwang mid portion surface is protruding and the bar recess activity joint of seting up of back piston rod and back piston inside, then the dwang can drive back piston rod and rotate, and because present fixed connection between back piston rod, after-fixing board and the back removal angle modulation dish, then the back removal angle modulation dish can carry out synchronous rotation with back piston rod, and in the same way, the preceding adjustment dish that moves also is carrying out synchronous rotation this moment.

Preferably, the inner side surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc are uniformly provided with rectangular teeth with the same size, the number of the rectangular teeth arranged on the surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc is one hundred eighty, and the teeth on the surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc are not meshed with each other but are in a mutually jacking state.

Preferably, the shape and specification of the front fixed angle adjusting disc are completely consistent with those of the rear fixed angle adjusting disc, the shape and specification of the front movable angle adjusting disc are completely consistent with those of the rear movable angle adjusting disc, and teeth on the surfaces of the front fixed angle adjusting disc and the front movable angle adjusting disc are meshed with each other.

Preferably, the teeth on the surfaces of the rear fixed angle adjusting disc and the front fixed angle adjusting disc are not aligned but staggered by one degree, the central axes of the rear fixed angle adjusting disc and the front fixed angle adjusting disc are the same straight line, the teeth on the rear fixed angle adjusting disc and the teeth on the front fixed angle adjusting disc are aligned one by one in a front-back direction by rotating the rear fixed angle adjusting disc around the central axis by one degree, in sum, the rear fixed angle adjusting disc and the rear movable angle adjusting disc, the front fixed angle adjusting disc and the front movable angle adjusting disc cannot be simultaneously engaged, when a worker rotates an adjusting knob externally, the inner rear movable angle adjusting disc and the inner front movable angle adjusting disc rotate synchronously, if the rear fixed angle adjusting disc and the rear movable angle adjusting disc are in an engaged state, the front fixed angle adjusting disc and the front movable angle adjusting disc are not engaged, after rotating a scale, the rear fixed angle adjusting disc and the rear movable angle adjusting disc are disengaged from each other, and the front fixed angle adjusting disc and the front moving adjusting disc are in an engaged state.

Preferably, the surface of calibrated scale presents three hundred sixty scales and the unit scale is one degree, always present synchronous rotation between dwang, pointer and the adjusting button, when carrying out angular adjustment, the staff has rotated the adjusting button and can has driven dwang and pointer removal rotation, and the staff can obtain the driven angle of dwang through observing the directional scale of outside pointer needle point to reach back removal angle modulation dish and preceding removal adjusting disk pivoted angle.

The invention has the following beneficial effects:

1. according to the invention, hydraulic oil in the oil guide pipe is extruded downwards, the rear piston and the front piston in the inner cavity at the bottom end of the oil guide pipe are respectively pushed towards two ends by the hydraulic oil, and the external rear movable angle adjusting disc and the external front movable angle adjusting disc are respectively pushed away towards two ends, so that the originally meshed fixed angle adjusting disc and the movable angle adjusting disc are separated from a meshed state, the limit is eliminated at the moment, a worker can perform bidirectional adjustment by rotating the adjusting knob, the defect of unidirectional adjustment of the traditional ratchet type adjustment is overcome, the adjustment efficiency is improved, and the practicability is improved.

2. The one-hundred-eighty fine teeth on the fixed adjusting disk and the movable adjusting disk are meshed with each other, so that the bearable load capacity of the fixed adjusting disk and the movable adjusting disk is greatly improved, the angle adjusting and limiting controller can be used for angle limiting work in a heavy-load environment, the overall quality of the angle adjusting and limiting controller is improved, and the service life of the angle adjusting and limiting controller is prolonged.

3. According to the invention, one-degree dislocation exists between the rear fixed angle adjusting disc and the front fixed angle adjusting disc, and one hundred eighty teeth are respectively arranged on the rear fixed angle adjusting disc and the front fixed angle adjusting disc, so that one circle of circle can be uniformly subdivided into three hundred sixty scales by matching the two fixed angle adjusting discs, and each scale is one degree, thus the minimum scale of angle adjustment is refined, the adjustment precision and range of angle adjustment limit are improved, and the practicability of the angle adjustment limit under different occasions is improved.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a front schematic view of the present invention;

FIG. 3 is a schematic view of the present invention with the upper housing undone;

FIG. 4 is a schematic view of the inner cavity of the lower housing of the present invention;

FIG. 5 is a schematic view of a rear conditioning module and a front conditioning module of the present invention;

FIG. 6 is a schematic view showing a surface coupling state of a rotating lever according to the present invention;

FIG. 7 is a view showing the inner structure of the upper part of the inner cavity of the oil conduit according to the present invention;

FIG. 8 is a cross-sectional view of the present invention;

FIG. 9 is an enlarged view of a portion A of the present invention;

FIG. 10 is an enlarged view of part B of the present invention.

In the figure: 1. an upper housing; 2. a lower housing; 3. a pressing handle; 4. an oil guide pipe; 5. an oil pipe fixing plate; 6. a first spring; 7. a guide bar; 8. a hydraulic piston; 9. a post-conditioning module; 901. a rear piston rod; 902. a rear piston; 903. then fixing the angle adjusting disc; 904. moving the angle adjusting disc backwards; 905. a rear fixing plate; 10. a front adjusting module; 1001. a front piston rod; 1002. a front piston; 1003. front fixed angle adjusting disc; 1004. the adjusting disc is moved forwards; 1005. a front fixing plate; 11. rotating the rod; 12. a second spring; 13. a guard plate; 14. a square plate; 15. a dial scale; 16. a pointer; 17. an adjusting knob; 18. a joint; 19. a limiting plate; 20. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 10, in the embodiment of the present invention, an angle adjustment limiter for mechanical control includes an upper housing 1 and a lower housing 2, the upper housing 1 and the lower housing 2 are fixedly connected, a limiting plate 19 is fixedly installed at the bottom of an inner cavity of the lower housing 2, an oil guide tube 4 and an oil tube fixing plate 5 are fixedly installed at the top of the upper housing 1, the oil guide tube 4 and the oil tube fixing plate 5 are integrated, a first spring 6 is movably sleeved on an outer surface of a top end of the oil guide tube 4, a top end and a bottom end of the first spring 6 are respectively contacted with the first spring 3 and the second spring 5, a guide rod 7 is movably sleeved inside the oil guide tube 4, a pressing handle 3 is fixedly installed at a top of the guide rod 7, a pressure oil piston 8 is fixedly installed at a bottom of the guide rod 7, the pressure oil piston 8 is movably sleeved in the inner cavity of the oil guide tube 4, the oil guide tube 4 is movably sleeved on an outer portion of the, the bottom end of an oil guide pipe 4 extends into the inner cavities of the upper shell 1 and the lower shell 2, a rear adjusting module 9 and a front adjusting module 10 are respectively and movably installed at the two ends of the bottom of the oil guide pipe 4, a rotating rod 11 is movably sleeved on the central axis of the rear adjusting module 9 and the front adjusting module 10, a second spring 12 is respectively arranged at the outer sides of the rear adjusting module 9 and the front adjusting module 10, guard plates 13 are respectively and fixedly installed at the two ends of the upper shell 1 and the lower shell 2, a square plate 14 is fixedly installed on the guard plate 13 positioned at the front part, a dial 15 is fixedly installed on the front surface of the square plate 14, the guard plates 13, the square plate 14 and the dial 15 run through and extend to the outside, the front end fixed mounting of dwang 11 has pointer 16 and adjusting knob 17, the rear end fixed mounting of dwang 11 has the joint 18, the surface of oil pipe 4 bottom is provided with two spacing rings 20, two spacing rings 20 activity joint between two spacing plates 19.

The rear adjusting module 9 includes a rear piston rod 901, a rear piston 902 and a rear fixing plate 905 are respectively and fixedly mounted at the inner end and the outer end of the rear piston rod 901, a rear movable angle adjusting disc 904 is fixedly mounted on the inner side of the rear fixing plate 905, the rear movable angle adjusting disc 904 is fixedly sleeved on the rear piston rod 901, a rear fixed angle adjusting disc is arranged on the inner side of the rear movable angle adjusting disc 904, the rear fixed angle adjusting disc is movably sleeved on the rear piston rod 901, the rear fixed angle adjusting disc is fixedly connected with the inner cavity wall of the lower housing 2, the rear piston rod 901 and the rear piston 902 are movably sleeved inside the oil guide pipe 4, and a rotating rod 11 is movably sleeved on the inner sides of the rear piston rod 901 and the rear piston 902.

The front adjusting module 10 includes a front piston rod 1001, a front piston 1002 and a front fixing plate 1005 are respectively fixedly mounted at the inner end and the outer end of the front piston rod 1001, a front moving adjusting disc 1004 is fixedly mounted at the inner side of the front fixing plate 1005, the front moving adjusting disc 1004 is fixedly sleeved on the front piston rod 1001, the inner side of the front moving adjusting disc 1004 is engaged with a front fixed angle adjusting disc 1003, the front fixed angle adjusting disc 1003 is movably sleeved with the front piston rod 1001, the front fixed angle adjusting disc 1003 is fixedly connected with the inner cavity wall of the lower housing 2, the front piston rod 1001 and the front piston 1002 are movably sleeved inside the oil guide pipe 4, and a rotating rod 11 is movably sleeved on the inner sides of the front piston rod 1001 and the front piston 1002.

Wherein, the oil conduit 4 is in a reversed T shape, the rear adjusting module 9 and the front adjusting module 10 are movably mounted at the bottom end of the oil conduit 4 with two outer edges, the rear piston 902 and the front piston 1002 are both located in the inner cavity at the bottom end of the oil conduit 4, the oil pressing piston 8 is located in the inner cavity at the upper part of the oil conduit 4, when the oil pressing piston 8 is driven by external force to move down along the inner cavity of the oil conduit 4, the hydraulic oil in the oil conduit 4 is pressed downwards, and the rear piston 902 and the front piston 1002 in the inner cavity at the bottom end of the oil conduit 4 are respectively pressed towards two ends, the purpose of this is to respectively push away the external rear moving angle adjusting disc 904 and the front moving adjusting disc 1004, if the rear fixed angle adjusting disc 904 and the rear moving angle adjusting disc 904 or the front fixed angle adjusting disc 1003 and the front moving adjusting disc 1004 originally present an engaged state, the engaged state is separated along with the self-pressed away, and the engaged state is separated, at this time, when the knob 17 is externally rotated, the forward movement adjusting plate 1004 and the backward movement adjusting plate 904 can be simultaneously rotated.

Wherein, dwang 11 comprises three parts in front, in back, and two parts in front and back of dwang 11 are the same cylindric of size specification, and the surface of dwang 11 mid portion is provided with strip arch, and the mid portion of dwang 11 cup joints with back piston rod 901 and back piston 902 activity.

The rear piston rod 901 and the rear piston 902 are provided with a strip-shaped groove matched with the strip-shaped protrusion on the surface of the rotating rod 11, the shape and specification of the rear piston rod 901 and the front piston rod 1001 are completely the same, the shape and specification of the rear piston 902 and the front piston 1002 are completely the same, because the strip-shaped protrusion on the surface of the middle part of the rotating rod 11 is movably clamped with the strip-shaped groove arranged in the rear piston rod 901 and the rear piston 902, the rotating rod 11 can drive the rear piston rod 901 to rotate, and because the rear piston rod 901, the rear fixing plate 905 and the rear movable angle adjusting plate 904 are fixedly connected, the rear movable angle adjusting plate 904 can synchronously rotate with the rear piston rod 901, and similarly, the front movable adjusting plate 1004 can synchronously rotate at the moment.

Rectangular teeth with the same size are uniformly arranged on the inner side surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc 904, the number of the rectangular teeth arranged on the surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc 904 is one hundred eighty, and the teeth on the surfaces of the rear fixed angle adjusting disc and the rear movable angle adjusting disc 904 are not meshed with each other but are in a mutually jacking state.

Wherein, the appearance specification of the front fixed angle modulation disc 1003 is completely consistent with that of the rear fixed angle modulation disc, the appearance specification of the front moving angle modulation disc 1004 is completely consistent with that of the rear moving angle modulation disc 904, and the teeth on the surfaces of the front fixed angle modulation disc 1003 and the front moving angle modulation disc 1004 are mutually meshed.

Wherein the teeth on the surface of the rear fixed angle modulation disc and the front fixed angle modulation disc 1003 are not aligned but staggered by one degree, the central axes of the rear fixed angle modulation disc and the front fixed angle modulation disc 1003 are the same straight line, the teeth on the rear fixed angle modulation disc and the front fixed angle modulation disc 1003 are aligned one by one in front and back by rotating the rear fixed angle modulation disc by one degree around the central axis, in sum, the rear fixed angle modulation disc and the rear movable angle modulation disc 904, the front fixed angle modulation disc 1003 and the front movable angle modulation disc 1004 cannot be simultaneously engaged, when the operator rotates the adjusting knob 17 externally, the rear movable angle modulation disc 904 and the front movable angle modulation disc 1004 inside can synchronously rotate, if the rear fixed angle modulation disc and the rear movable angle modulation disc 904 are in an engaged state, the front fixed angle modulation disc 1003 and the front movable angle modulation disc 1004 are in a disengaged state, after rotating one scale, the rear fixed angle modulation disc and the rear movable angle modulation disc 904 are disengaged state, while the front fixed recliner disc 1003 and the front moving recliner disc 1004 will assume an engaged state.

Wherein, the surface of dial 15 presents three hundred sixty scales and the unit scale is one degree, and the dwang 11, pointer 16 and adjusting button 17 always present synchronous rotation, when carrying out angle adjustment, the staff has rotated adjusting button 17 and can has driven dwang 11 and pointer 16 to move and rotate, and the staff can obtain the driven angle of dwang 11 through observing the scale that outside pointer 16 needle point points to obtain the angle that back moved angle modulation dish 904 and preceding moved adjusting dish 1004 rotated.

The working principle and the using process are as follows:

the staff firstly presses the pressing handle 3 downwards, the pressing oil piston 8 is pushed downwards to extrude the hydraulic oil in the oil guide pipe 4 downwards, the hydraulic oil can respectively push the rear piston 902 and the front piston 1002 in the inner cavity at the bottom end of the oil guide pipe 4 towards two ends, the external rear movable angle adjusting disc 904 and the external front movable angle adjusting disc 1004 are respectively pushed away towards two ends, if the rear fixed angle adjusting disc and the rear movable angle adjusting disc 904 or the front fixed angle adjusting disc 1003 and the front movable angle adjusting disc 1004 originally present an engagement state, the engagement state is separated along with the self-pushed away, and at the moment, when the staff rotates the adjusting knob 17 externally, the front movable angle adjusting disc 1004 and the rear movable angle adjusting disc 904 can be simultaneously rotated.

Then there is dislocation of one degree between fixed angle modulation dish and the preceding fixed angle modulation dish 1003, when the staff externally rotates the adjusting knob 17 an angle, the removal angle modulation dish that can engage originally misplaces between the fixed angle modulation dish, can engage between the removal angle modulation dish that originally misplaces and the fixed angle modulation dish, unclamp and press handle 3, because under the rebound effect of oil pipe 4 and spring two 12, press handle 3 can drive guide arm 7 and press oil piston 8 to go upward rapidly, thus make the back move angle modulation dish 904 and move the adjusting dish 1004 to impel inwards, when the back fixed angle modulation dish and move the angle modulation dish 904 after, before fixed angle modulation dish 1003 and move the adjusting dish 1004 when there is a meshing state between, joint 18 can't rotate again, receive spacing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.