CN219977279U - Measurer for horizontal hacksaw machine - Google Patents

Abstract

The utility model relates to a measurer for a horizontal hacksaw machine, which comprises a measuring device, a rotating device, a swinging device and a telescopic device, wherein the measuring device comprises a ruler shell, a main ruler and an auxiliary ruler, an upper sliding cavity and a lower sliding cavity are arranged on the ruler shell, one end of the main ruler is movably arranged in the lower sliding cavity, the other end of the main ruler is connected with a zeroing boss, the auxiliary ruler is movably arranged in the upper sliding cavity, the main ruler is provided with a main scale, the auxiliary ruler is provided with a cavity and a reading frame, the zeroing boss is movably arranged in the cavity, the side end of the reading frame is provided with an auxiliary scale, and the bottom of the ruler shell is provided with a fixing hole. The zeroing boss can fix the zeroing size for the first time, so that the zeroing is not needed again when the next measurement is carried out, the steel is not needed to be measured for many times when the length is required to be cut, and the cutting error is reduced.

Description

Measurer for horizontal hacksaw machine

Technical Field

The utility model relates to the technical field of machining, in particular to a measurer for a horizontal hacksaw machine.

Background

At present, the existing sawing machine comprises a circular sawing machine, a band sawing machine and a hacksawing machine, wherein the circular sawing machine makes rotary cutting movement through a circular saw blade, meanwhile, the circular saw blade makes feeding movement along with a saw blade box to conduct cutting, the band sawing machine is used for tensioning an annular saw belt on two saw wheels and driving the saw belt to conduct cutting through the saw wheels, a workpiece is mainly relied on to move to conduct cutting when the band sawing machine conducts cutting, the hacksawing machine is used for conducting reciprocating movement through a saw bow provided with a saw blade, when the horizontal hacksawing machine is used for sawing steel, firstly, the fixed steel is cut flat, then the steel is moved, and the distance between the cut flat end face and the saw blade is adjusted, so that the distance is the length of the required steel.

The traditional measuring structure is that a fixed long shaft is arranged on the side face of the sawing machine, a bent arm capable of axially moving and rotating perpendicular to the shaft is sleeved on the long shaft, and a screw for preventing the bent arm from axially moving is arranged on the long shaft. A fine tuning screw is arranged on the end face of the bent arm, so that the distance between the fine tuning screw and the end face of the bent arm can be adjusted; the machine saw blade is first actuated and then gradually lowered. Closing the machine when the saw blade is close to the steel, and stopping the saw blade; and then rotating and moving the bent arm to enable the fine adjustment screw to be close to the steel, and locking the bent arm to rotate the fine adjustment screw to enable the fine adjustment screw to be in close contact with the steel. And then rotating the bent arm to a position which is relatively suitable for the saw blade, taking out the common steel ruler to measure the distance between the saw blade and the fine adjustment screw, and reading out the data to obtain the length of the required steel. However, the conventional design has problems: the step of measuring the length by using the common steel rule is troublesome and has larger error, and if a plurality of steel materials with different lengths are sawn for a plurality of times, the measurement must be repeated each time, the time is extremely consumed, the error is larger and the method is inconvenient.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a measurer for a horizontal hacksaw machine, wherein the zeroing boss can be used for fixing the zeroing size for the first time, and the zeroing is not needed again when the next measurement is carried out, so that the steel is not needed to be cut for a long time, the repeated measurement is not needed, and the cutting error is reduced.

The technical scheme adopted for solving the technical problems is as follows:

the measurer for the horizontal hacksawing machine comprises a measuring device, a rotating device, a swinging device and a telescopic device, wherein the measuring device comprises a ruler shell, a main ruler and an auxiliary ruler, an upper sliding cavity and a lower sliding cavity are arranged on the ruler shell, one end of the main ruler is movably arranged in the lower sliding cavity, the other end of the main ruler is connected with a zeroing boss, the auxiliary ruler is movably arranged in the upper sliding cavity, a main scale is arranged on the main ruler, a cavity and a reading frame are arranged on the auxiliary ruler, the zeroing boss is movably arranged in the cavity, an auxiliary scale is arranged on the side end of the reading frame, and a fixing hole is formed in the bottom of the ruler shell;

the rotating device comprises a rotating roller and a spiral body, wherein the upper end of the rotating roller is connected with a fixed plate, the lower end of the rotating roller is provided with a rotating hole, a plurality of strip-shaped grooves are uniformly distributed on the outer wall of the rotating roller, the strip-shaped grooves are formed along the length direction of the rotating roller, the upper end face of the spiral body is provided with a guide hole, the lower end of the spiral body is provided with a connecting hole, an octagonal hole is formed in the connecting hole, the bottom wall of the guide hole is provided with a guide pillar, a plurality of dampers are uniformly distributed on the inner wall of the guide hole, the guide pillar is sleeved in the rotating hole, and the dampers correspond to the strip-shaped grooves;

the swing device comprises a movable rod, a through hole is formed in the upper end of the movable rod, an octagonal groove is formed in the side wall of the through hole, a hollow bolt is arranged in the through hole, a spring and an octagonal column which are connected together are sleeved on the hollow bolt, a bar-shaped hole is formed in the hollow bolt, a movable rod is movably arranged in an inner cavity of the hollow bolt, a push plate is connected onto the movable rod, the push plate and the octagonal column are movably arranged along the length direction of the bar-shaped hole, and the octagonal column corresponds to the octagonal groove and the octagonal hole;

the telescopic device comprises a sleeve, and a fastening bolt is arranged on the side wall of the sleeve;

the fixed orifices are connected on the fixed plate, the connecting hole is connected on hollow bolt, the lower extreme activity of movable rod sets up in the sleeve.

The left end of the auxiliary ruler is provided with a measuring claw, the right end of the auxiliary ruler is provided with an upper threaded hole, an upper bolt is sleeved in the upper threaded hole, the bottom of the ruler shell is also provided with a lower threaded hole, and a lower bolt is sleeved in the lower threaded hole.

The upper end lateral wall of screw is provided with the external screw thread, install the fixed shell on the rotatory roller, be provided with the internal screw thread in the fixed shell, the internal screw thread corresponds with the external screw thread.

The damper comprises a pressure spring and a clamping block, one end of the pressure spring is connected to the inner wall of the guide hole, the other end of the pressure spring is connected to one end of the clamping block, a convex body is arranged at the other end of the clamping block, and the convex body corresponds to the strip-shaped groove.

The bottom of the sleeve is provided with a hole cavity, and a cylinder is sleeved in the hole cavity.

The inner cavity of the sleeve is provided with a chute, the side wall of the movable rod is provided with a convex strip, the chute corresponds to the convex strip, the chute is arranged along the length direction of the sleeve, and the convex strip is arranged along the length direction of the movable rod.

The beneficial effects of the utility model are as follows:

1. the measuring jaw can be contacted with the measuring end surface through the rotating device, no inclination angle exists, the measuring is convenient, the rotating device breaks away from the measuring end surface after the measuring is finished, the whole measuring device is fixed on the sawing machine, the zeroing size can be fixed for the first time through the zeroing boss, the steel is not required to be zeroed again when the next measuring is carried out, the steel is not required to be measured for a plurality of times, the cutting error is reduced, the measuring device can be folded after the measuring of the measuring device is finished through the swinging device, the occupied space is reduced, the measuring structure precision is higher, the measuring device is a fifty-division ruler, the reading is convenient, and the measuring method is simple.

2. The damper acts on the inside of the strip-shaped groove, and the pressure spring can apply force to the clamping block, so that the rotary roller can rotate to a certain position, the rotary roller can be fixed without manually applying external force, and the measuring device is fixed at a proper position.

3. The octagonal column is pushed by the push plate and is separated from the octagonal hole, so that the rotating device and the measuring device are folded to a proper position in the vertical direction, the octagonal column is clamped into the octagonal hole, the rotating device is fixed, the octagonal groove is used for being fixed when rotating to a specific angle, and the left-right rotating structure is adjustable in three angles of vertical angle, 45 angle and horizontal angle within the range of 90 degrees due to the octagonal groove, so that the whole device is convenient to be fixed after being folded.

4. The spiral body and the rotary roller are connected together through the fixed shell, so that falling off is prevented.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a measuring device;

FIG. 3 is a schematic structural view of the caliper housing;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic structural view of the main scale;

FIG. 6 is a schematic view of the structure of the auxiliary ruler;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a side view of FIG. 6;

FIG. 9 is a schematic view of a rotating apparatus;

FIG. 10 is a cross-sectional view of FIG. 9;

FIG. 11 is a schematic view of the structure of a screw;

FIG. 12 is a side view of FIG. 11;

FIG. 13 is a top view of FIG. 11;

FIG. 14 is a cross-sectional view of FIG. 11;

FIG. 15 is a cross-sectional view of A-A of FIG. 1;

FIG. 16 is a schematic view of a telescopic device;

FIG. 17 is an enlarged schematic view of the structure of FIG. 16B;

FIG. 18 is a schematic structural view of a damper;

FIG. 19 is a schematic view of a saw machine with a gauge;

FIG. 20 is a side view of FIG. 19;

FIG. 21 is a schematic view of the structure of the measuring device when it is elongated;

FIG. 22 is a top view of FIG. 21;

FIG. 23 is a schematic view of the sleeve being fitted over the cylinder;

fig. 24 is a schematic structural view of the stationary housing;

fig. 25 is a perspective view of a screw:

fig. 26 is a perspective view of the swing device:

fig. 27 is a sectional structure perspective view of the swing device:

FIG. 28 is a cross-sectional view of C-C of FIG. 16;

the figure shows: 1-a measuring device; 2-a rotating device; 3-a rocking device; 4-telescoping device; 5-sawing machine; 6-hacksaw; 10-a scale shell; 11-a main scale; 12-auxiliary ruler; 13-an up-slide cavity; 14-a slide down cavity; 15-zeroing the boss; 16-cavity; 17-reading frame; 18-fixing holes; 19-measuring jaws; 20-rotating the roller; 21-a fixed plate; 22-bar grooves; 23-rotating the hole; 24-helix; 25-guiding holes; 26-a guide post; 27-a damper; 28-connecting holes; 29-octagon holes; 30-a movable rod; 31-through holes; 32-octagonally-shaped grooves; 33-hollow bolts; 34-a spring; 35-octagon columns; 36-bar-shaped holes; 37-a moving rod; 38-pushing plate; 40-sleeve; 41-fastening bolts; 50-an upper threaded hole; 51-bolting; 52-a lower threaded hole; 53-lower bolts; 54-main scale; 55-secondary scale; 56-a compression spring; 57-clamping blocks; 58-convex body; 59-bore; 60-cylinder; 61-fixing the shell; 62-perforating; 63-a chute; 64-convex strips.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

As shown in fig. 1 to 28, a measurer for a horizontal hacksaw machine comprises a measuring device 1, a rotating device 2, a swinging device 3 and a telescopic device 4, wherein the measuring device 1 comprises a ruler shell 10, a main ruler 11 and an auxiliary ruler 12, an upper sliding cavity 13 and a lower sliding cavity 14 are arranged on the ruler shell 10, one end of the main ruler 11 is movably arranged in the lower sliding cavity 14, the other end of the main ruler 11 is connected with a zeroing boss 15, the auxiliary ruler 12 is movably arranged in the upper sliding cavity 13, a main scale 54 is arranged on the main ruler 11, a cavity 16 and a reading frame 17 are arranged on the auxiliary ruler 12, the zeroing boss 15 is movably arranged in the cavity 16, an auxiliary scale 55 is arranged on the side end of the reading frame 17, and a fixing hole 18 is arranged at the bottom of the ruler shell 10;

the rotating device 2 comprises a rotating roller 20 and a spiral body 24, wherein the upper end of the rotating roller 20 is connected with a fixed plate 21, the lower end of the rotating roller is provided with a rotating hole 23, a plurality of strip-shaped grooves 22 are uniformly distributed on the outer wall of the rotating roller 20, the strip-shaped grooves 22 are arranged along the length direction of the rotating roller 20, the upper end face of the spiral body 24 is provided with a guide hole 25, the lower end of the spiral body is provided with a connecting hole 28, an octagonal hole 29 is arranged in the connecting hole 28, the bottom wall of the guide hole 25 is provided with a guide pillar 26, a plurality of dampers 27 are uniformly distributed on the inner wall of the guide hole 25, the guide pillar 26 is sleeved in the rotating hole 23, and the dampers 27 correspond to the strip-shaped grooves 22;

the swinging device 3 comprises a movable rod 30, a through hole 31 is formed in the upper end of the movable rod 30, an octagonal groove 32 is formed in the side wall of the through hole 31, a hollow bolt 33 is arranged in the through hole 31, a spring 34 and an octagonal column 35 which are connected together are sleeved on the hollow bolt 33, a strip-shaped hole 36 is formed in the hollow bolt 33, a movable rod 37 is movably arranged in an inner cavity of the hollow bolt 33, a push plate 38 is connected to the movable rod 37, the push plate 38 and the octagonal column 35 are movably arranged along the length direction of the strip-shaped hole 36, and the octagonal column 35 corresponds to the octagonal groove 32 and the octagonal hole 29;

the telescopic device 4 comprises a sleeve 40, and a fastening bolt 41 is arranged on the side wall of the sleeve 40;

the fixing hole 18 is connected to the fixing plate 21, the connecting hole 28 is connected to the hollow bolt 33, and the lower end of the movable rod 30 is movably arranged in the sleeve 40.

The left end of the auxiliary scale 12 is provided with a measuring jaw 19, the right end is provided with an upper threaded hole 50, an upper bolt 51 is sleeved in the upper threaded hole 50, the bottom of the scale shell 10 is also provided with a lower threaded hole 52, and a lower bolt 53 is sleeved in the lower threaded hole 52.

The upper end side wall of the screw 24 is provided with external threads, the rotary roller 20 is provided with a fixed shell 61, and the fixed shell 61 is internally provided with internal threads, and the internal threads correspond to the external threads.

The damper 27 comprises a compression spring 56 and a clamping block 57, one end of the compression spring 56 is connected to the inner wall of the guide hole 25, the other end of the compression spring is connected to one end of the clamping block 57, a convex body 58 is arranged at the other end of the clamping block 57, and the convex body 58 corresponds to the strip-shaped groove 22.

The bottom of the sleeve 40 is provided with a cavity 59, and a cylinder 60 is sleeved in the cavity 59.

The inner chamber of sleeve 40 is provided with spout 63, be provided with sand grip 64 on the lateral wall of movable rod 30, spout 63 is corresponding with sand grip 64, spout 63 sets up along the length direction of sleeve 40, sand grip 64 sets up along the length direction of movable rod 30, and sand grip 64 is rectangle bar structure, and sand grip 64 can slide along the direction of spout 63, and spout 63 carries out spacingly to sand grip 64 to make the side of movable rod 30 and the side of sleeve 40 form unsmooth cooperation, when guaranteeing that movable rod 30 reciprocates, can only axial flexible, prevent that movable rod 30 from taking place annular skew, improve stability.

Step one, steel is clamped on a sawing machine 5, a cylinder 60 is fixed on the sawing machine 5, the cylinder 60 can be welded on the sawing machine 5, a hole cavity 59 is sleeved on the cylinder 60, the distance is adjusted, a sleeve 40 is fixedly connected on the cylinder 60 through a bolt, an octagonal column 35 is pushed by a moving rod 37, the octagonal column 35 enters an octagonal groove 32, the octagonal column 35 is separated from the octagonal hole 29, the rotating device 2 is swung, when the rotating device 2 is vertical within a 90-degree range, the shape of the octagonal hole 29 and the shape of the octagonal groove 32 are aligned, the moving rod 37 is loosened, the octagonal column 35 moves towards the direction of the octagonal hole 29 under the action of restoring force of a spring 34, and the octagonal column 35 simultaneously clamps the octagonal hole 29 and the octagonal groove 32, so that the function of fixing the rotating device 2 is achieved.

In the second step, in the rotating device 2, the rotating roller 20 is rotated, the rotating hole 23 rotates around the guide post 26, the convex body 58 moves backwards under the action of the edge end of the bar-shaped groove 22, when the measuring device 1 is perpendicular to the hacksaw 6, the rotating roller 20 stops rotating, and under the action of the restoring force of the pressure spring 56, the pressure spring 56 pushes the clamping block 57 to move forwards, so that the convex body 58 is clamped in the bar-shaped groove 22, and the rotating device 2 is fixed.

And thirdly, adjusting the height of the movable rod 30 in the sleeve 40, so that the heights of the measuring device 1 and the hacksaw 6 are always the same, and fixing the movable rod 30 through bolts.

And fourthly, zeroing, namely pulling the auxiliary scale 12 to enable the measuring claw 19 to be in close contact with the side surface of the hacksaw 6 without an inclination angle, adjusting the main scale 11 at the same time, ensuring that the side surface of the zeroing boss 15 is in close contact with the right end surface of the cavity 16, and adjusting the position of the cavity 59 on the cylinder 60 if the zeroing boss cannot be in close contact with the side surface, wherein the reading is zero, and zeroing is finished.

Step five, the lower bolt 53 in the lower threaded hole 52 is screwed to prevent the main scale 11 from moving.

Step six, adjusting the telescopic device to enable the auxiliary ruler 12 and the end face of the steel to reach the same plane which can be contacted.

And step seven, measuring the reading, namely pulling the auxiliary ruler 12 to enable the measuring claw 19 to be in close contact with the end surface of the steel without an inclination angle, and reading the length of the steel at the moment, wherein the main scale 54 is 0-24mm from left to right, and the maximum scale displayed in the cavity 16 is the length of the steel to be cut.

And step eight, tightening an upper bolt 51 in the upper threaded hole 50, fixing the auxiliary ruler 12 on the main ruler 11, and rotating the measuring main body structure to the same axis with the stretching structure by adjusting the swinging device, so that occupied space is reduced, and subsequent steel sawing is facilitated.

If the same length of steel is needed to be sawed for the second time, the swinging device is only required to be adjusted to enable the end face of the steel to coincide with the side face of the measuring jaw 19, and re-measurement is not required.

If the steel materials with different lengths are sawn, the upper bolt 51 on the auxiliary ruler 12 is loosened, the auxiliary ruler 12 is adjusted to enable the reading to reach the required length, the upper bolt 51 is screwed down again, the end face of the steel material is overlapped with the side face of the measuring jaw 19, the first to fourth steps are not needed, and the adjustment is not needed again.

The internal thread of the fixed shell 61 is screwed into the external thread of the screw 24 to be fixed, a perforation (62) is arranged on the fixed shell 61, the upper end of the rotary roller 20 runs through the perforation, the inner cavity of the fixed shell (61) is used for clamping the rotary roller 20, and the fixed shell (61) is used for connecting the screw 24 and the rotary roller 20 together to prevent falling.

The measuring jaw 19 can be contacted with the measuring end surface through the rotating device 2, no inclination angle exists, the measuring is convenient, after the measuring is finished, the rotating device 2 breaks away from the measuring end surface with the measuring jaw 19, the whole measuring device is fixed on a sawing machine, the zeroing size can be fixed for the first time through the zeroing boss, the steel is not required to be zeroed again when the next measuring is carried out, the steel is not required to be measured for all times, the cutting error is reduced, the measuring device can be folded after the measuring is finished through the swinging device, the occupied space is reduced, the measuring structure precision is higher, the measuring device is a fifty-division ruler, the reading is convenient, and the measuring method is simple.

The damper 27 acts on the inside of the strip-shaped groove 22, and the pressure spring 56 can apply force to the clamping block, so that the rotary roller 20 can be rotated to a certain position, and the rotary roller can be partially fixed without manually applying external force, so that the measuring device is fixed at a proper position.

The octagonal column 35 is pushed by the pushing plate 38, the octagonal column 35 is separated from the octagonal hole, after the rotating device 2 and the measuring device 1 are folded to a proper position in the vertical direction, the octagonal column 35 is clamped into the octagonal hole 29, the rotating device 2 is fixed, the octagonal groove 32 is fixed when being used for rotating to a specific angle, and the left-right rotating structure is adjustable in three angles of vertical angle, 45 angle and horizontal angle within the range of 90 degrees due to the octagonal groove 32, so that the whole device is convenient to be folded and then fixed.

The spiral body and the rotary roller are connected together through the fixed shell (61) to prevent falling.

The foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and principles of the utility model.

Claims (6)

1. The utility model provides a caliber for horizontal hacksaw machine, includes measuring device (1), rotary device (2), pendulous device (3) and telescoping device (4), its characterized in that:

the measuring device (1) comprises a ruler shell (10), a main ruler (11) and an auxiliary ruler (12), wherein an upper sliding cavity (13) and a lower sliding cavity (14) are arranged on the ruler shell (10), one end of the main ruler (11) is movably arranged in the lower sliding cavity (14), the other end of the main ruler is connected with a zeroing boss (15), the auxiliary ruler (12) is movably arranged in the upper sliding cavity (13), a main scale (54) is arranged on the main ruler (11), a cavity (16) and a reading frame (17) are arranged on the auxiliary ruler (12), the zeroing boss (15) is movably arranged in the cavity (16), an auxiliary scale (55) is arranged at the edge of the reading frame (17), and a fixing hole (18) is formed in the bottom of the ruler shell (10).

The rotating device (2) comprises a rotating roller (20) and a spiral body (24), wherein the upper end of the rotating roller (20) is connected with a fixed plate (21), the lower end of the rotating roller is provided with a rotating hole (23), a plurality of strip-shaped grooves (22) are uniformly distributed on the outer wall of the rotating roller (20), the strip-shaped grooves (22) are arranged along the length direction of the rotating roller (20), a guide hole (25) is formed in the upper end face of the spiral body (24), a connecting hole (28) is formed in the lower end of the spiral body, an octagonal hole (29) is formed in the connecting hole (28), a guide pillar (26) is arranged on the bottom wall of the guide hole (25), a plurality of dampers (27) are uniformly distributed on the inner wall of the guide hole (25), the guide pillar (26) is sleeved in the rotating hole (23), and the dampers (27) correspond to the strip-shaped grooves (22).

The swinging device (3) comprises a movable rod (30), a through hole (31) is formed in the upper end of the movable rod (30), an octagonal groove (32) is formed in the side wall of the through hole (31), a hollow bolt (33) is arranged in the through hole (31), a spring (34) and an octagonal column (35) which are connected together are sleeved on the hollow bolt (33), a strip-shaped hole (36) is formed in the hollow bolt (33), a movable rod (37) is movably arranged in an inner cavity of the hollow bolt (33), a push plate (38) is connected to the movable rod (37), the push plate (38) and the octagonal column (35) are movably arranged along the length direction of the strip-shaped hole (36), and the octagonal column (35) corresponds to the octagonal groove (32) and the octagonal hole (29);

the telescopic device (4) comprises a sleeve (40), and a fastening bolt (41) is arranged on the side wall of the sleeve (40);

the fixing hole (18) is connected to the fixing plate (21), the connecting hole (28) is connected to the hollow bolt (33), and the lower end of the movable rod (30) is movably arranged in the sleeve (40).

2. A measurer for a horizontal hacksaw machine as claimed in claim 1, wherein; the left end of auxiliary scale (12) is provided with measuring jaw (19), and the right-hand member is provided with screw hole (50), go up screw hole (50) endotheca and have upper bolt (51), the bottom of chi shell (10) still is provided with screw hole (52), screw hole (52) endotheca have lower bolt (53 down.

3. A measurer for a horizontal hacksaw machine as claimed in claim 1, wherein; the upper end side wall of the spiral body (24) is provided with external threads, a fixed shell (61) is arranged on the rotary roller (20), internal threads are arranged in the fixed shell (61), and the internal threads correspond to the external threads.

4. A measurer for a horizontal hacksaw machine as claimed in claim 1, wherein; the damper (27) comprises a pressure spring (56) and a clamping block (57), one end of the pressure spring (56) is connected to the inner wall of the guide hole (25), the other end of the pressure spring is connected to one end of the clamping block (57), a convex body (58) is arranged at the other end of the clamping block (57), and the convex body (58) corresponds to the strip-shaped groove (22).

5. A measurer for a horizontal hacksaw machine as claimed in claim 1, wherein; the bottom of the sleeve (40) is provided with a cavity (59), and a cylinder (60) is sleeved in the cavity (59).

6. A measurer for a horizontal hacksaw machine as claimed in claim 1, wherein; the inner cavity of sleeve (40) is provided with spout (63), be provided with sand grip (64) on the lateral wall of movable rod (30), spout (63) are corresponding with sand grip (64), spout (63) set up along the length direction of sleeve (40), sand grip (64) set up along the length direction of movable rod (30).