CN212558497U - Dress fish frame of unloading fast - Google Patents

Abstract

The utility model provides a dress fish frame of unloading fast belongs to aquatic products processing equipment technical field. The utility model discloses a bottom plate, frame, link mechanism and fixed establishment, first through-hole has been seted up on the bottom plate, it has first rotor plate and second rotor plate to articulate respectively on two long edges of first through-hole, the downside of bottom plate is equipped with a plurality of supporting leg, the frame sets up on the bottom plate, be equipped with the wire net on the frame inside wall, the frame has: four stands, four the stand is vertical setting respectively on four corners of bottom plate, horizontally connect with the connecting plate between two adjacent stands, link mechanism can drive first rotor plate and second rotor plate simultaneously and rotate, opens and seals first through-hole, and after first rotor plate and second rotor plate closed first through-hole, fixed establishment can fix first rotor plate and second rotor plate. The utility model discloses be convenient for adorn the quick discharge of fish frame, labour saving and time saving.

Description

Dress fish frame of unloading fast

Technical Field

The utility model belongs to the technical field of aquatic products processing equipment, a dress fish frame of unloading fast is related to.

Background

The baked fish fillet is a baked aquatic cooked food product newly developed in recent years. The raw material of the grilled fish slice is selected from fresh and large Navodon majus as the raw material, and the delicious grilled fish slice can be prepared through a plurality of procedures such as unfreezing → slicing → rinsing → draining → seasoning → spreading → drying → uncovering → baking → rolling for larch and the like.

Wherein, rinsing is the key for improving the quality of the product, and the rinsed fish slices are white in color, thick in meat and soft. The domestic rinsing method of commonly using is to put into dress fish basket the sliced fillet in, puts into the rinsing pond with the frame and soaks in, dissolves water soluble protein, washes bloodiness and impurity etc. and after the rinsing is accomplished, hangs the dress fish frame in the rinsing pond and removes outside the rinsing pond, then the fish of artifical in with the frame is poured out to carrying out the waterlogging caused by excessive rainfall, because the frame weight of dress fish is great, the manual work will adorn the fish frame and invert over, wastes time and energy.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a dress fish frame of unloading fast, the dress fish frame of being convenient for unloads labour saving and time saving fast.

The purpose of the utility model can be realized by the following technical proposal:

a fish loading frame capable of being unloaded quickly comprises a bottom plate, wherein the bottom plate is rectangular, a first through hole is formed in the bottom plate, the first through hole is rectangular, a first rotating plate and a second rotating plate are hinged to two long edges of the first through hole respectively, a plurality of supporting legs are arranged on the lower side surface of the bottom plate, and a plurality of first through holes are formed in the first rotating plate and the second rotating plate respectively;

the frame, the cross-section of frame personally submits the rectangle, the frame sets up on the bottom plate, be equipped with the wire net on the frame inside wall, the frame has: the four upright posts are respectively vertically arranged at four corners of the bottom plate, and a connecting plate is horizontally connected between two adjacent upright posts;

the connecting rod mechanism is arranged on the side face where the short side of the frame is located, and can drive the first rotating plate and the second rotating plate to rotate at the same time so as to realize the opening and closing of the first through hole;

and the fixing mechanism is arranged below the bottom plate, and can fix the first rotating plate and the second rotating plate after the first rotating plate and the second rotating plate seal the first through hole.

In the above fast unloading fish-loading frame, the link mechanism comprises:

the first connecting rod is horizontally and fixedly arranged on the lower side surface of the short side of the first rotating plate, and one end of the first connecting rod extends out of the side edge of the bottom plate;

the second connecting rod is horizontally and fixedly arranged on the lower side surface of the short side of the second rotating plate, and one end of the second connecting rod extends out of the side edge of the bottom plate;

the first sleeve is vertically and fixedly arranged on the outer side surface of the short side of the frame;

the first sliding rod is arranged in the first sleeve in a sliding mode, the lower end of the first sliding rod extends out of the first sleeve, a horizontal rod is horizontally and fixedly arranged at the end part of the first sliding rod, the upper end of the first sliding rod extends out of the first sleeve, and a first handle is fixedly arranged at the end part of the first sliding rod;

the one end of first connecting rod articulates the one end at the horizon bar, the other end of first connecting rod and the one end that the bottom plate was stretched out to the first connecting rod are articulated, the one end of second connecting rod articulates the other end at the horizon bar, the other end of second connecting rod and the one end that the bottom plate was stretched out to the second connecting rod are articulated.

In the fish loading frame for quick unloading, the first sliding rod is provided with a limiting convex edge, the limiting convex edge is positioned below the first sleeve, and when the first sliding rod drives the first rotating plate and the second rotating plate to rotate oppositely to seal the first through hole, the limiting convex edge is contacted with the lower end of the first sleeve.

In the above-mentioned quick-release fish-loading frame, the fixing mechanism comprises:

the rotating shaft is horizontally and rotatably arranged below the bottom plate through the two fixing plates, and the length direction of the rotating shaft is parallel to the long edge direction of the bottom plate;

the fixed pipe is horizontally and fixedly arranged on the rotating shaft through a plurality of fixed rods, and the length direction of the fixed pipe is consistent with that of the rotating shaft;

the driving structure is arranged on the fixing plate on the same side of the first sleeve, and the driving structure can drive the rotating shaft to rotate 180 degrees, so that the rotating shaft fixed pipe rotates vertically upwards and vertically downwards.

In the above-mentioned quick-release fish-loading frame, the driving structure comprises:

one end of the rotating shaft, which is close to the second sleeve, extends out of the fixing plate, and the end part of the rotating shaft is fixedly provided with a gear;

the second sleeve is vertically and fixedly arranged on the fixing plate on the same side as the first sleeve, a second through hole is formed in one side, close to the rotating shaft, of the second sleeve, and the length direction of the second through hole is consistent with that of the second sleeve;

the fixed plate is provided with a supporting plate, the supporting plate is provided with a second through hole, the second sliding rod is inserted into the second sleeve, the upper end of the second sliding rod extends out of the second sleeve and penetrates through the second through hole, the end part of the second sliding rod is fixedly provided with a second handle, the lower end of the second sliding rod extends out of the second sleeve, and the end part of the second sliding rod is fixedly provided with a sealing plate;

the rack is fixedly arranged on the second sliding rod, the length direction of the rack is consistent with that of the second sliding rod, the rack is positioned in the second through hole, and the tooth side of the rack extends out of the second through hole to be meshed with the gear;

the reset spring is sleeved on the second sliding rod between the supporting plate and the second sleeve, and in an initial state, the fixing pipe is in a vertically upward state under the action of the reset spring.

Compared with the prior art, the utility model has the advantages of it is following:

1. in an initial state, the first rotating plate and the second rotating plate are driven to rotate through the connecting rod mechanism, the first through hole is sealed, then the first rotating plate and the second rotating plate are fixed through the fixing mechanism, fish needing to be rinsed are placed in the fish containing frame, the fish containing frame is hoisted and placed in the rinsing pool, after rinsing is finished, the fish containing frame is hoisted out of the rinsing pool through the crane, then the fixing mechanism is opened, the first rotating plate and the second rotating plate rotate oppositely under the action of the gravity of the fish, the first through hole is opened, the fish in the fish containing frame falls down through the first through hole, the trouble of manually overturning the fish containing frame is avoided, and time and labor are saved;

2. when the first through hole needs to be sealed, the first handle and the first sliding rod are pulled to move upwards along the first sleeve to drive the horizontal rod to move upwards, the first rotating plate and the second rotating plate are driven to rotate oppositely through the first connecting rod and the second connecting rod, the first through hole is sealed, the trouble that people bend down to rotate the first rotating plate and the second rotating plate is avoided, and time and labor are saved; in addition, the fished flavor of the fishframe is heavy, fillets are left on the first rotating plate and the second rotating plate, and the first rotating plate and the second rotating plate are driven to rotate through the connecting rod mechanism, so that the fishframe is clean and sanitary;

3. when the first sliding rod moves upwards along the first sleeve, the first rotating plate and the second rotating plate are driven to rotate oppositely to seal the first through hole, the lower end of the first sleeve is in contact with the limiting convex edge, and the limiting convex edge limits the sliding range of the first sliding rod, so that the first through hole can be just sealed by the first rotating plate and the second rotating plate, and the structure is simple;

4. when the first through hole is sealed by the first rotating plate and the second rotating plate, the rotating shaft is driven to rotate through the driving structure, so that the fixed pipe on the rotating shaft rotates to vertically and upwards contact with the lower side surfaces of the first rotating plate and the second rotating plate, the first rotating plate and the second rotating plate are fixed, and when the fish containing frame is filled with fish slices, the first rotating plate and the second rotating plate cannot downwards rotate, so that the operation is simple;

5. in an initial state, under the action of a return spring, the fixed pipe is in a vertically upward position, when a first through hole needs to be opened, the second handle and the second slide rod are pulled to move upwards to drive the rack to move upwards, so that the gear on the rotating shaft rotates clockwise, the fixed pipe on the rotating shaft rotates clockwise, the first rotating plate and the second rotating plate lose the support of the fixed pipe and rotate downwards, the first through hole is opened, fish in the fish containing frame falls off, the trouble of manually inverting the fish containing frame is avoided, and time and labor are saved; in addition, when the fixed pipe on the rotating shaft rotates clockwise to vertically downwards, the sealing plate at the lower end of the second sliding rod contacts the lower end of the second sleeve, the sealing plate limits the second sliding rod to continue moving upwards, and the structure is simple.

Drawings

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

FIG. 2 is a view taken along line A-A of FIG. 1;

FIG. 3 is a view from B-B in FIG. 2;

FIG. 4 is a cross-sectional view at C-C of FIG. 2;

FIG. 5 is a cross-sectional view taken at D-D in FIG. 3;

FIG. 6 is an enlarged view of a portion of FIG. 3 at E;

fig. 7 is a state view in which the first and second rotating plates are opened.

In the figure, 1, a bottom plate; 11. a column; 12. a connecting plate; 13. steel wire mesh; 14. supporting legs; 15. a first through hole; 16. a first rotating plate; 161. a first connecting rod; 162. a first perforation; 17. a second rotating plate; 171. a second connecting rod; 2. a rotating shaft; 21. a fixing plate; 22. fixing the rod; 23. a fixed tube; 24. a gear; 3. a first sleeve; 31. a first slide bar; 311. a first handle; 312. a limiting convex edge; 32. a horizontal bar; 33. a first link; 34. a second link; 4. a second sleeve; 41. a second slide bar; 411. a support plate; 412. closing the plate; 413. a second handle; 414. a rack; 42. a return spring; 43. And a second perforation.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 7, the fast unloading fish loading frame comprises a bottom plate 1, a frame, a connecting rod mechanism and a fixing mechanism.

The bottom plate 1 is the rectangle, first through-hole 15 has been seted up on the bottom plate 1, first through-hole 15 is the rectangle, it has first rotor plate 16 and second rotor plate 17 to articulate respectively on two long edges of first through-hole 15, first rotor plate 16 and second rotor plate 17 symmetry set up, the downside of bottom plate 1 is equipped with a plurality of supporting leg 14, all seted up the first perforation 162 of a plurality of on first rotor plate 16 and the second rotor plate 17.

The cross section of frame is the rectangle, the frame sets up on bottom plate 1, be equipped with wire net 13 on the frame inside wall, the frame has: four stands 11, four stand 11 is vertical setting respectively on four corners of bottom plate 1, and horizontally connect has connecting plate 12 between two adjacent stands 11.

The link mechanism is arranged on the side face where the short side of the frame is located, and the link mechanism can drive the first rotating plate 16 and the second rotating plate 17 to rotate at the same time, so that the opening and closing of the first through hole 15 are realized.

The fixing mechanism is disposed below the base plate 1, and can fix the first and second rotating plates 16 and 17 after the first and second rotating plates 16 and 17 close the first through hole 15.

Initial state, drive first rotor plate 16 and second rotor plate 17 through link mechanism and rotate, seal first through-hole 15, then fix first rotor plate 16 and second rotor plate 17 through fixed establishment, the fish that will need the rinsing is to going into the dress fish frame in, to adorn the fish frame hoist and mount and put into the rinsing pond, after the rinsing, hang out the rinsing pond with adorning the fish frame through the loop wheel machine, then open fixed establishment, first rotor plate 16 and second rotor plate 17 are under the action of gravity of fish, the looks back of the body rotates, first through-hole 15 is opened, the fish in the dress fish frame drops down through first through-hole 15, the trouble of artifical upset dress fish frame has been removed from, time and labor saving.

Specifically, the link mechanism includes a first connecting rod 161, a second connecting rod 171, a first bushing 3, a first slide bar 31, a first link 33, and a second link 34.

The first connecting rod 161 is horizontally fixed on the lower side of the short side of the first rotating plate 16, one end of the first connecting rod 161 extends out of the side of the bottom plate 1, and the length direction of the first connecting rod 161 is parallel to the long side direction of the bottom plate 1.

The second connecting rod 171 is horizontally fixed on the lower side surface of the short side of the second rotating plate 17, one end of the second connecting rod 171 extends out of the side edge of the bottom plate 1, and the length direction of the second connecting rod 171 is parallel to the long side direction of the bottom plate 1.

The first sleeve 3 is vertically and fixedly arranged on the outer side surface of the short side of the frame.

The first sliding rod 31 is slidably disposed in the first sleeve 3, the lower end of the first sliding rod 31 extends out of the first sleeve 3, the end of the first sliding rod 31 is horizontally and fixedly provided with a horizontal rod 32, the upper end of the first sliding rod 31 extends out of the first sleeve 3, and the end of the first sliding rod 31 is fixedly provided with a first handle 311.

One end of the first connecting rod 33 is hinged to one end of the horizontal rod 32, the other end of the first connecting rod 33 is hinged to one end of the first connecting rod 161 extending out of the bottom plate 1, one end of the second connecting rod 34 is hinged to the other end of the horizontal rod 32, and the other end of the second connecting rod 34 is hinged to one end of the second connecting rod 161 extending out of the bottom plate 1.

When the first through hole 15 needs to be sealed, the first handle 311 and the first sliding rod 31 are pulled to move upwards along the first sleeve 3, the horizontal rod 32 is driven to move upwards, the first rotating plate 16 and the second rotating plate 17 are driven to rotate oppositely through the first connecting rod 33 and the second connecting rod 34, the first through hole 15 is sealed, the trouble of manually bending to rotate the first rotating plate 16 and the second rotating plate 17 is avoided, and time and labor are saved; in addition, the fishframe has heavy fishy smell, fillets are remained on the first rotating plate 16 and the second rotating plate 17, and the first rotating plate 16 and the second rotating plate 17 are driven to rotate through a link mechanism, so that the fishframe is clean and sanitary.

Specifically, the first slide bar 31 is provided with a limiting convex edge 312, the limiting convex edge 312 is located below the first sleeve 3, and when the first slide bar 31 drives the first rotating plate 16 and the second rotating plate 17 to rotate oppositely to close the first through hole 15, the limiting convex edge 312 contacts with the lower end of the first sleeve 3.

When the first sliding rod 31 moves upwards along the first sleeve 3, the first rotating plate 16 and the second rotating plate 17 are driven to rotate oppositely to seal the first through hole 15, at this time, the lower end of the first sleeve 3 is in contact with the limiting convex edge 312, and the limiting convex edge 312 limits the sliding range of the first sliding rod 31, so that the first through hole 15 can be just sealed by the first rotating plate 16 and the second rotating plate 17, and the structure is simple.

Specifically, the fixing mechanism includes a rotating shaft 2, a fixing tube 23, and a driving structure.

All be equipped with fixed plate 21 on two short edges of bottom plate 1, pivot 2 rotates the setting in the below of bottom plate 1 through two fixed plate 21 levels, the length direction of pivot 2 is parallel with the long limit direction of bottom plate 1.

The fixed pipe 23 is fixedly arranged on the rotating shaft 2 through a plurality of fixed rods 22, and the length direction of the fixed pipe 23 is consistent with that of the rotating shaft 2.

The driving structure is arranged on the fixing plate 21 on the same side of the first sleeve 3, and the driving structure can drive the rotating shaft 2 to rotate 180 degrees, so that the fixing pipe 23 on the rotating shaft 2 rotates vertically upwards and downwards.

After the first through hole 15 is sealed by the first rotating plate 16 and the second rotating plate 17, the rotating shaft 2 is driven to rotate through the driving structure, so that the fixing pipe 23 on the rotating shaft 2 rotates to vertically and upwards contact the lower side surfaces of the first rotating plate 16 and the second rotating plate 17, the first rotating plate 16 and the second rotating plate 17 are fixed, when the fish containing frame is filled with fish slices, the first rotating plate 16 and the second rotating plate 17 cannot rotate downwards, and the operation is simple.

Specifically, the driving structure includes the gear 24, the second sleeve 4, the second slide rod 41, the rack 414, and the return spring 42.

One end of the rotating shaft 2 extends out of the fixing plate 21 close to the second sleeve 4, and a gear 24 is coaxially and fixedly arranged at the end part.

The second sleeve 4 is vertically and fixedly arranged on the fixing plate 21 on the same side as the first sleeve 3, a second through hole 43 is formed in one side, close to the rotating shaft 2, of the second sleeve 4, and the length direction of the second through hole 43 is consistent with that of the second sleeve 4.

The fixed plate 21 is provided with a supporting plate 411, the supporting plate 411 is provided with a second through hole, the second slide bar 41 is inserted into the second sleeve 4, the upper end of the second slide bar 41 extends out of the second sleeve 4 and penetrates through the second through hole, the end part of the second slide bar is fixedly provided with a second handle 413, the lower end of the second slide bar 41 extends out of the second sleeve 4, the end part of the second slide bar is fixedly provided with a sealing plate 412, and the size of the sealing plate 412 is larger than that of the cross section of the second slide bar 41.

The rack 414 is fixedly arranged on the second sliding rod 41, the length direction of the rack 414 is consistent with the length direction of the second sliding rod 41, the rack 414 is positioned in the second through hole 43, and the tooth side of the rack 414 extends out of the second through hole 43 to be meshed with the gear 24.

The return spring 42 is sleeved on the second sliding rod 41 located between the supporting plate 411 and the second sleeve 4, one end of the return spring 42 is fixedly connected with the supporting plate 411, the other end of the return spring 42 is fixedly connected with the second sleeve 4, and in an initial state, under the action of the return spring 42, the fixed pipe 23 is in a vertically upward state.

In an initial state, under the action of the return spring 42, the fixed pipe 23 is in a vertically upward position, when the first through hole 15 needs to be opened, the second handle 413 and the second sliding rod 41 are pulled to move upwards to drive the rack 414 to move upwards, so that the gear 24 on the rotating shaft 2 rotates clockwise, the fixed pipe 23 on the rotating shaft 2 rotates clockwise, the first rotating plate 16 and the second rotating plate 17 lose the support of the fixed pipe 23 and rotate downwards, the first through hole 15 is opened, fish in the fish containing frame falls off, the trouble of manually inverting the fish containing frame is avoided, and time and labor are saved; in addition, when the fixed pipe 23 on the rotating shaft 2 rotates clockwise to the vertical downward direction, the sealing plate 412 at the lower end of the second sliding rod 41 contacts the lower end of the second sleeve 4, and the sealing plate 412 limits the second sliding rod 41 to move upwards continuously, so that the structure is simple.

In the description of this patent, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the patent.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (5)

1. The fish loading frame capable of rapidly unloading is characterized by comprising a bottom plate (1), wherein the bottom plate (1) is rectangular, a first through hole (15) is formed in the bottom plate (1), the first through hole (15) is rectangular, a first rotating plate (16) and a second rotating plate (17) are respectively hinged to two long edges of the first through hole (15), a plurality of supporting legs (14) are arranged on the lower side surface of the bottom plate (1), and a plurality of first through holes (162) are formed in each of the first rotating plate (16) and the second rotating plate (17);

the frame, the cross-section of frame personally submits the rectangle, the frame sets up on bottom plate (1), be equipped with wire net (13) on the frame inside wall, the frame has: the four upright posts (11) are respectively vertically arranged at four corners of the bottom plate (1), and a connecting plate (12) is horizontally connected between two adjacent upright posts (11);

the connecting rod mechanism is arranged on the side face where the short side of the frame is located, and can drive the first rotating plate (16) and the second rotating plate (17) to rotate at the same time, so that the first through hole (15) is opened and closed;

and the fixing mechanism is arranged below the bottom plate (1), and can fix the first rotating plate (16) and the second rotating plate (17) after the first rotating plate (16) and the second rotating plate (17) seal the first through hole (15).

2. A quick release fish-loading frame as claimed in claim 1, wherein the linkage comprises:

the first connecting rod (161) is horizontally and fixedly arranged on the lower side surface of the short side of the first rotating plate (16), and one end of the first connecting rod (161) extends out of the side edge of the bottom plate (1);

the second connecting rod (171), the said second connecting rod (171) is fixed on the underside of the short side of the second rotating plate (17) horizontally, one end of the said second connecting rod (171) stretches out of the side of the bottom plate (1);

the first sleeve (3) is vertically and fixedly arranged on the outer side surface of the short side of the frame;

the first sliding rod (31) is arranged in the first sleeve (3) in a sliding mode, the lower end of the first sliding rod (31) extends out of the first sleeve (3) and the end portion of the first sliding rod is horizontally and fixedly provided with a horizontal rod (32), the upper end of the first sliding rod (31) extends out of the first sleeve (3) and the end portion of the first sliding rod is fixedly provided with a first handle (311);

first connecting rod (33) and second connecting rod (34), the one end of first connecting rod (33) articulates the one end at horizontal pole (32), the other end of first connecting rod (33) and first connecting rod (161) stretch out the one end of bottom plate (1) and articulate, the one end of second connecting rod (34) articulates the other end at horizontal pole (32), the other end of second connecting rod (34) and second connecting rod (171) stretch out the one end of bottom plate (1) and articulate.

3. A quick unloading fish-loading frame according to claim 2, wherein the first slide rod (31) is provided with a limiting convex edge (312), the limiting convex edge (312) is positioned below the first sleeve (3), and when the first slide rod (31) drives the first rotating plate (16) and the second rotating plate (17) to rotate towards each other to close the first through hole (15), the limiting convex edge (312) is contacted with the lower end of the first sleeve (3).

4. A quick release fish-loading frame as claimed in claim 3, wherein the securing mechanism comprises:

the rotating shaft (2) is provided with fixing plates (21) on two short sides of the bottom plate (1), the rotating shaft (2) is horizontally and rotatably arranged below the bottom plate (1) through the two fixing plates (21), and the length direction of the rotating shaft (2) is parallel to the long side direction of the bottom plate (1);

the fixing pipe (23) is horizontally and fixedly arranged on the rotating shaft (2) through a plurality of fixing rods (22), and the length direction of the fixing pipe (23) is consistent with that of the rotating shaft (2);

the driving structure is arranged on the fixing plate (21) on the same side of the first sleeve (3), and the driving structure can drive the rotating shaft (2) to rotate 180 degrees, so that the fixing pipe (23) on the rotating shaft (2) rotates vertically upwards and downwards.

5. A quick release fish-loading frame as claimed in claim 4, wherein the drive structure comprises:

one end of the rotating shaft (2) close to the second sleeve (4) extends out of the fixing plate (21) and the end part of the rotating shaft is fixedly provided with the gear (24);

the second sleeve (4) is vertically and fixedly arranged on the fixing plate (21) on the same side as the first sleeve (3), a second through hole (43) is formed in one side, close to the rotating shaft (2), of the second sleeve (4), and the length direction of the second through hole (43) is consistent with that of the second sleeve (4);

a support plate (411) is arranged on the fixing plate (21), a second through hole is formed in the support plate (411), the second slide bar (41) is inserted into the second sleeve (4), the upper end of the second slide bar (41) extends out of the second sleeve (4) and penetrates through the second through hole, a second handle (413) is fixedly arranged at the end part of the second slide bar, the lower end of the second slide bar (41) extends out of the second sleeve (4), and a sealing plate (412) is fixedly arranged at the end part of the second slide bar;

the rack (414) is fixedly arranged on the second sliding rod (41), the length direction of the rack (414) is consistent with that of the second sliding rod (41), the rack (414) is positioned in the second through hole (43), and the tooth side of the rack (414) extends out of the second through hole (43) to be meshed with the gear (24);

the return spring (42), the second slide bar (41) that is located between backup pad (411) and second sleeve pipe (4) is established to return spring (42), initial condition, under the effect of return spring (42), fixed pipe (23) are in vertical ascending state.

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