Portable multifunctional foundation bearing capacity detection device

Abstract

The utility model provides a portable multifunctional foundation bearing capacity detection device. The portable multifunctional foundation bearing capacity detection device comprises a base, the bottom frame is fixedly installed on the base, and a movable frame is installed on the bottom frame in a sliding mode in the vertical direction; guide wheel parts are arranged at the top of the movable frame; the height adjusting mechanism is used for adjusting the length of the part, extending out of the bottom frame, of the movable frame; the winch is mounted on one side of the base through a convenient-to-disassemble mechanism, and a rope of the winch bypasses the guide wheel part; the penetration rod is connected with the vertical guide mechanism, a probe is arranged at the bottom end of the penetration rod, a guide column is installed at the top end of the penetration rod, and a hammer body is installed on the guide column in a sliding mode; the lifting seat is connected with the rope, and the lifting seat is connected with the hammer body through a locking mechanism; and the unlocking part is used for unlocking the locking mechanism, and the unlocking part is mounted at the top end of the guide column. The whole support for raising the height adopts a retractable design, so that the transportation and storage volume can be reduced, and convenience is provided for transportation and carrying.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of foundation bearing capacity detection, especially to a portable multifunctional foundation bearing capacity detection device. BACKGROUND

[0002] The foundation bearing capacity refers to the maximum load capacity that the foundation soil can withstand without damage or excessive deformation. This index is directly related to the stability and safety of the building. If the foundation bearing capacity is insufficient, it may lead to building settlement, tilting or even collapse.

[0003] The foundation bearing capacity detection device in the prior art needs to lift the hammer body to a high position, and the hammer body falls by gravity for hammering. Therefore, a high support needs to be erected when the device is used, which causes the device to have a large volume during overall transportation and is inconvenient to transport and carry. UTILITY MODEL CONTENT

[0004] The utility model provides a portable multifunctional foundation bearing capacity detection device to solve the technical problem of inconvenient transportation and carrying.

[0005] The utility model solves the above technical problem through the following technical scheme:

[0006] The utility model provides a portable multifunctional foundation bearing capacity detection device, including the base, still include: the bottom frame, the bottom frame fixed mounting is to the base, and the bottom frame is installed with movable frame along the vertical sliding, movable frame top is provided with the guide pulley part, height -adjusting mechanism, height -adjusting mechanism is used for adjusting the length that movable frame from the bottom frame stretches out, winch, winch is installed to one side of the base through the convenient dismantling mechanism, and the rope of winch passes the guide pulley part, the penetration rod, the penetration rod is connected with vertical guide mechanism, and the penetration rod bottom is provided with the probe, the penetration rod top end is installed with the guide column, the guide column is installed with the hammer body sliding, the lead -in seat is connected with the rope, the lead -in seat is connected between the hammer body through the locking mechanism, the unlocking part, the unlocking part is used for the unlocking of locking mechanism, and the unlocking part is installed to the guide column top end.

[0007] In the technical scheme, the support for heightening is designed to be retractable, which can reduce the volume of storage and transportation and provide convenience for transportation and carrying.

[0008] Preferably, the top of the bottom frame is fixedly installed with a load plate, a through slot is formed in the load plate, a cover body is fixedly embedded and installed in the through slot, a guide slot is formed in the top of the cover body, and the cover body is open at the bottom, the movable frame penetrates the guide slot, and the movable frame is slidingly connected with the guide slot, and a stop seat is fixedly installed at the bottom end of the movable frame.

[0009] Preferably, the height adjusting mechanism comprises a rack and a driving part; the rack is fixedly connected to one side of the movable frame; the top of the cover body is fixedly provided with a carrier; the first rotating shaft is rotatably installed on the carrier; the gear is installed on the first rotating shaft; the gear is in meshing connection with the rack; and the driving part is connected to the first rotating shaft.

[0010] Preferably, the driving part comprises a protective shell fixedly installed on the back of the cover body; the third rotating shaft and the worm are rotatably installed in the protective shell; the worm wheel is fixedly sleeved on the third rotating shaft; the third rotating shaft is connected to the first rotating shaft; the worm wheel is in meshing connection with the worm; the second rotating shaft is fixedly installed at one end of the worm; and the second handle is fixedly installed at one end of the second rotating shaft.

[0011] In the technical scheme, the height adjusting mechanism is used for adjusting the length of the movable frame extending from above the base frame.

[0012] Preferably, one side of the winch is provided with an embedding seat, and a insertion hole is formed in the embedding seat; one side of the base is provided with an embedding groove, and a positioning insertion column is fixedly installed in the embedding groove; the embedding seat is inserted into the embedding groove, and the insertion hole is inserted with the positioning insertion column.

[0013] Preferably, the easy-to-disassemble mechanism comprises a threaded column; a hole body in communication with the embedding groove is formed in the base; a threaded sleeve is arranged at one end of the hole body and fixedly connected to the base; the threaded column penetrates through the hole body and is in threaded connection with the threaded sleeve; a pressing seat is rotatably connected to one end of the threaded column and slidably arranged in the embedding groove; and a first handle is fixedly installed at the other end of the threaded column.

[0014] Preferably, the guide wheel part comprises a top beam and wheel bodies; the top beam is fixedly connected to the top end of the movable frame; and two wheel bodies are rotatably installed at two ends of the top beam.

[0015] Preferably, the vertical guide mechanism comprises a sliding sleeve and a guide rod; the guide rod is fixedly connected to the side wall of the base frame; the sliding sleeve is slidably installed on the guide rod; and the sleeve body is connected to the penetrating rod through the connecting rod.

[0016] Preferably, the hammer body is provided with an embedding hole at the top; the lifting seat is inserted into the embedding hole and slidably sleeved on the guide column; the locking mechanism comprises a sliding pin; a sliding groove is formed in the side wall of the lifting seat; the sliding pin is movably installed in the sliding groove; spherical surfaces are arranged at both ends of the sliding pin; a convex ring is arranged at the top hole wall of the embedding hole; chamfered surfaces are arranged at the top edge and the bottom edge of the inner circle of the convex ring; the convex ring is hung at one end of the sliding pin; the other end of the sliding pin is in abutment with the rod surface of the guide column; and the bottom surface of the sliding groove is obliquely arranged relative to the horizontal surface.

[0017] Preferably, the unlocking part comprises a thin rod, a top end of the guide column is provided with a guide hole, the thin rod is slidingly installed into the guide hole, a top end of the thin rod is fixedly connected with a baffle, and the top end of the guide column is provided with a tapered surface.

[0018] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, each preferred example of the utility model is obtained.

[0019] The positive progress effect of the utility model lies in:

[0020] The portable multifunctional foundation bearing capacity detection device has the advantages that the whole support for heightening is designed into two parts of a base frame and a movable frame, a height adjusting mechanism is further arranged, the height adjusting mechanism adjusts the movable frame to the top of the base frame to heighten when in use, so that the hammer body can be lifted to a required height, and in a non-use state, the movable frame is stored in the base frame, so that the volume of the whole for transportation is reduced, and convenience is provided for transportation and carrying; further, in addition to the storage function, the winch for lifting the hammer body is connected with the base frame through a detachable mechanism, so that the winch is convenient to detach and maintain and replace, and after being detached, the winch is stacked in the base, so that the storage space for transportation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the whole utility model.

[0022] Figure 2 It is a structural schematic view of the vertical guide mechanism of the utility model.

[0023] Figure 3 It is an installation structural schematic view of the winch of the utility model.

[0024] Figure 4 It is a structural schematic view of the utility model Figure 1 It is an enlarged structural schematic view of part A of the utility model.

[0025] Figure 5 It is a structural schematic view of the guide wheel part of the utility model.

[0026] Figure 6 It is a structural schematic view of the movable frame and the cover body of the utility model.

[0027] Figure 7 It is a structural schematic view of the height adjusting mechanism of the utility model.

[0028] Figure 8 It is a structural schematic view of the inside of the protective shell of the utility model.

[0029] Figure 9 It is a connection structural schematic view of the hammer body and the lifting seat of the utility model.

[0030] Figure 10 It is the structure schematic view of the distribution of the slide pin of the utility model.

[0031] Explanation of reference signs

[0032] 1, base; 101, embedded groove; 102, hole body; 103, positioning insertion column;

[0033] 2, underframe; 201, carrier plate;

[0034] 3, movable frame; 301, blocking seat;

[0035] 4, guide wheel part; 401, top beam; 402, wheel body;

[0036] 5, winch; 501, rope; 502, connecting hook; 503, embedded seat; 504, insertion hole;

[0037] 6, penetration rod; 601, hammer seat;

[0038] 7, probe;

[0039] 8, hammer body; 801, embedded hole; 802, convex ring;

[0040] 9, lifting seat; 901, connecting rope; 902, sliding groove; 903, slide pin;

[0041] 10, vertical guide mechanism; 1001, sleeve body; 1002, connecting rod; 1003, sliding sleeve; 1004, guide rod;

[0042] 11, convenient dismounting mechanism; 1101, first gripping disc; 1102, threaded column; 1103, threaded sleeve; 1104, pressing seat;

[0043] 12, height adjusting mechanism; 1201, cover body; 12011, guide groove; 1202, protection shell; 1203, first rotating shaft; 1204, carrier frame; 1205, gear;

[0044] 1206, rack; 1207, second rotating shaft; 1208, second gripping disc; 1209, third rotating shaft; 1210, worm wheel; 1211, worm;

[0045] 13, guide column; 1301, thin rod; 1302, conical surface; 1303, baffle. DETAILED DESCRIPTION

[0046] The utility model will be further explained by way of example below, but it will not limit the utility model in the range of the described example.

[0047] As Figures 1-10As shown in the figure, a portable multifunctional foundation bearing capacity detection device, comprising a base 1; further comprising: a chassis 2, the chassis 2 is fixedly installed to the base 1, and the chassis 2 is vertically slidingly installed with a movable frame 3; the movable frame 3 is provided with a guide wheel part 4 at the top; a height adjusting mechanism 12 is used to adjust the length of the movable frame 3 extending out of the chassis 2; a winch 5 is installed to one side of the base 1 through a detachable mechanism 11, and the rope 501 of the winch 5 passes through the guide wheel part 4; a penetration rod 6 is connected with a vertical guide mechanism 10, and the penetration rod 6 is provided with a probe 7 at the bottom end, and the penetration rod 6 is provided with a guide column 13 at the top end, and the guide column 13 is slidingly installed with a hammer body 8; a lifting seat 9 is connected with the rope 501, and the lifting seat 9 is connected with the hammer body 8 through a locking mechanism; an unlocking part is used for unlocking the locking mechanism, and the unlocking part is installed at the top end of the guide column 13.

[0048] As shown in the figure, Figure 1 , Figure 4 , Figure 6 , Figure 7 and Figure 8 , the top of the chassis 2 is fixedly installed with a carrier plate 201, the carrier plate 201 is provided with a through slot, the through slot is fixedly embedded with a cover 1201, the top of the cover 1201 is provided with a guide slot 12011, and the bottom of the cover 1201 is open, the movable frame 3 penetrates through the guide slot 12011, and the movable frame 3 is slidingly connected with the guide slot 12011, and the bottom end of the movable frame 3 is fixedly installed with a stop seat 301.

[0049] The height adjusting mechanism 12 comprises a rack 1206 and a driving part; the rack 1206 is fixedly connected with one side of the movable frame 3, the top of the cover 1201 is fixedly installed with a carrier frame 1204, the carrier frame 1204 is rotatably installed with a first rotating shaft 1203, the first rotating shaft 1203 is installed with a gear 1205, the gear 1205 is meshingly connected with the rack 1206, and the first rotating shaft 1203 is connected with the driving part.

[0050] The driving part comprises a protective shell 1202 fixedly installed to the back of the cover 1201; the protective shell 1202 is rotatably installed with a third rotating shaft 1209 and a worm 1211; the third rotating shaft 1209 is fixedly sleeved with a worm wheel 1210, and the third rotating shaft 1209 is connected with the first rotating shaft 1203; the worm wheel 1210 is meshingly connected with the worm 1211; one end of the worm 1211 is fixedly installed with a second rotating shaft 1207, and one end of the second rotating shaft 1207 is fixedly installed with a second grip disc 1208.

[0051] When the adjusting of the movable frame 3 is carried out, the second rotating shaft 1207 is driven to rotate the worm 1211 by rotating the second handle 1208, the worm 1211 meshes with the worm gear 1210, the third rotating shaft 1209, the first rotating shaft 1203 and the gear 1205 are driven to rotate together, the movable frame 3 is driven to move up and down by the meshing of the gear 1205 and the rack 1206, and the length of the movable frame 3 extending out of the base frame 2 is adjusted.

[0052] The up and down movement of the movable frame 3 is guided by the guide groove 12011, when the movable frame 3 is adjusted to the highest position, the bottom end of the movable frame 3 is prevented from being separated from the guide groove 12011 by the blocking seat 301.

[0053] As shown in Figure 3 One side of the winch 5 is provided with an embedding seat 503, the embedding seat 503 is provided with an insertion hole 504, one side of the base 1 is provided with an embedding groove 101, a positioning insertion column 103 is fixedly installed in the embedding groove 101, the embedding seat 503 is inserted into the embedding groove 101, and the insertion hole 504 is inserted with the positioning insertion column 103.

[0054] The convenient dismounting mechanism 11 comprises a threaded column 1102, a hole body 102 is formed in the base 1 and communicates with the embedding groove 101, a threaded sleeve 1103 is arranged at one end of the hole body 102 and fixedly connected with the base 1, the threaded column 1102 penetrates through the hole body 102 and is in threaded connection with the threaded sleeve 1103, a pressing seat 1104 is rotatably connected at one end of the threaded column 1102 and slidably arranged in the embedding groove 101, and a first handle 1101 is fixedly installed at the other end of the threaded column 1102.

[0055] When the winch 5 is dismounted, the threaded column 1102 is screwed with the threaded sleeve 1103 by forward rotating the first handle 1101, the pressing seat 1104 is driven to slide in the embedding groove 101, the pressing seat 1104 is separated from the embedding seat 503, the embedding seat 503 is pressed, then the embedding seat 503 is pulled, the positioning insertion column 103 is separated from the insertion hole 504, and then the embedding seat 503 is pulled out from the embedding groove 101.

[0056] When the winch 5 is mounted, the embedding seat 503 is inserted into the embedding groove 101, the embedding seat 503 is moved in the embedding groove 101, the positioning insertion column 103 is inserted with the insertion hole 504, and then the first handle 1101 is reversely rotated to press the embedding seat 503 by the pressing seat 1104.

[0057] The guide wheel part 4 comprises a top beam 401 and wheel bodies 402, the top beam 401 is fixedly connected with the top end of the movable frame 3, and the number of the wheel bodies 402 is two, and the two wheel bodies 402 are rotatably installed at the two ends of the top beam 401.

[0058] As Figure 2 shown in the drawings, the vertical guide mechanism 10 comprises a sliding sleeve 1003 and a guide rod 1004; the guide rod 1004 is fixedly connected with the side wall of the chassis 2, the sliding sleeve 1003 is slidingly installed on the guide rod 1004, and the sliding sleeve 1003 is connected with a sleeve body 1001 through a connecting rod 1002, and the sleeve body 1001 is connected with the penetrating rod 6.

[0059] The vertical guide mechanism 10 provides guidance for the downward movement of the penetrating rod 6.

[0060] As Figure 1 , Figure 9 and Figure 10 shown in the drawings, the hammer body 8 is provided with an embedded hole 801 at the top, the lifting seat 9 is inserted into the embedded hole 801, and the lifting seat 9 is slidingly sleeved on the guide column 13; the locking mechanism comprises a sliding pin 903; the side wall of the lifting seat 9 is provided with a sliding groove 902, the sliding pin 903 is movably installed in the sliding groove 902, both ends of the sliding pin 903 are provided with spherical surfaces, the top wall of the embedded hole 801 is provided with a convex ring 802, and the inner ring of the convex ring 802 is provided with chamfered surfaces at the top edge and the bottom edge, the convex ring 802 is hung on one end of the sliding pin 903, and the other end of the sliding pin 903 abuts against the rod surface of the guide column 13; the bottom surface of the sliding groove 902 is inclined to the horizontal plane.

[0061] The unlocking part comprises a thin rod 1301, the top end of the guide column 13 is provided with a guide hole, the thin rod 1301 is slidingly installed in the guide hole, the top end of the thin rod 1301 is fixedly connected with a baffle 1303, and the top end of the guide column 13 is provided with a tapered surface 1302.

[0062] Figure 9 In the drawings, the lifting seat 9 is in a connected state with the hammer body 8, at this time, one end of the sliding pin 903 is blocked by the guide column 13, the hammer body 8 is hung on the other end of the sliding pin 903 through the convex ring 802, when the winch 5 winds the rope 501, the lifting seat 9 drives the hammer body 8 to move upwards, and the movement is guided by the guide column 13, when moving to the top end position of the guide column 13, the lifting seat 9 pushes the baffle 1303 to make the thin rod 1301 extend from the top end of the guide column 13, after the sliding pin 14 passes through the tapered surface 1302, the sliding pin 14 moves to the position of the thin rod 1301, the sliding pin 14 loses the blockage of the guide column 13, the sliding pin 903 is separated from the convex ring 802 through the gravity of the hammer body 8, the sliding pin 903 is in contact with the thin rod 1301, the above-mentioned realizes the disconnection of the hammer body 8, the hammer body 8 hammers the hammer seat 601 through gravity, and the penetrating rod 6 moves in the soil layer.

[0063] When the rope 501 is unwound from the winch 5, the lifting seat 9 moves downward by gravity, the end of the slide pin 903 moves from the surface of the thin rod 1301 and the conical surface 1302 to the guide column 13, the slide pin 903 is reset, and the thin rod 1301 is received into the guide column 13; when the lifting seat 9 continues to move downward and is embedded in the embedded hole 801, the end of the slide pin 903 away from the guide column is blocked by the chamfer surface of the top edge of the convex ring 802, so that the end of the slide pin 903 moves upward and is received into the sliding groove 902, so that the slide pin 903 moves smoothly below the convex ring 802, and then the slide pin 903 is restored to the state shown in the figure by gravity, the slide pin 903 is in contact with the inclined surface at the bottom of the sliding groove 902, and the end of the slide pin 903 extends from the sliding groove 902, and then the lifting seat 9 moves upward, the convex ring 802 can be hung and hooked by the slide pin 903, so that the hammer body 8 moves upward together. Figure 9

[0064] The base 1 is a square frame, and a flat plate is mounted inside the frame; the flat plate does not completely cover the space inside the frame, and the uncovered space is used for the probe 7 and the penetrating rod 6 to enter the soil layer, and the flat plate provides a fixed mounting position for the chassis 2.

[0065] The top end of the penetrating rod 6 is provided with a hammer seat 601.

[0066] The top of the lifting seat 9 is connected with a connecting rope 901, and the connecting rope 901 is connected with a connecting hook 502 arranged at the end of the rope 501.

[0067] The utility model is not limited to the above-mentioned embodiment, and no matter any change is made in its shape or structure, falls in the protection scope of the utility model. The protection scope of the utility model is defined by the appended claims, and the skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, but these changes and modifications all fall into the protection scope of the utility model.​

Claims

1. A portable multifunctional foundation bearing capacity testing device, comprising a base (1); characterized in that, Also includes: The base frame (2) is fixedly installed on the base (1), and a movable frame (3) is slidably installed on the base frame (2) along the vertical direction; The movable frame (3) is provided with a guide wheel part (4) at the top; The height adjustment mechanism (12) is used to adjust the length of the movable frame (3) extending from the base frame (2); The winch (5) is installed on one side of the base (1) via a disassembly mechanism (11), and the rope (501) of the winch (5) passes around the guide wheel (4); A penetrating rod (6) is connected to a vertical guide mechanism (10), and a probe (7) is provided at the bottom end of the penetrating rod (6). A guide post (13) is installed at the top end of the penetrating rod (6), and a hammer (8) is slidably installed on the guide post (13). The lifting seat (9) is connected to the rope (501), and the lifting seat (9) is connected to the hammer body (8) by a locking mechanism; The unlocking part is used to unlock the locking mechanism and is installed on the top of the guide post (13).

2. The portable multifunctional foundation bearing capacity testing device as described in claim 1, characterized in that: A carrier plate (201) is fixedly installed on the top of the base frame (2). A through groove is provided on the carrier plate (201). A cover (1201) is fixedly fitted into the through groove. A guide groove (12011) is provided on the top of the cover (1201), and the bottom of the cover (1201) is open. The movable frame (3) passes through the guide groove (12011) and is slidably connected to the guide groove (12011). A stop (301) is fixedly installed at the bottom of the movable frame (3).

3. The portable multifunctional foundation bearing capacity testing device as described in claim 2, characterized in that: The height adjustment mechanism (12) includes a rack (1206) and a drive unit; the rack (1206) is fixedly connected to one side of the movable frame (3), and a carrier (1204) is fixedly installed on the top of the cover (1201). A first rotating shaft (1203) is rotatably installed on the carrier (1204), and a gear (1205) is installed on the first rotating shaft (1203). The gear (1205) meshes with the rack (1206), and the drive unit is connected to the first rotating shaft (1203).

4. The portable multifunctional foundation bearing capacity testing device as described in claim 3, characterized in that: The drive unit includes a protective shell (1202) fixedly installed on the back of the cover (1201); a third rotating shaft (1209) and a worm gear (1211) are rotatably installed inside the protective shell (1202); a worm wheel (1210) is fixedly sleeved on the third rotating shaft (1209), and the third rotating shaft (1209) is connected to the first rotating shaft (1203); the worm wheel (1210) is meshed with the worm gear (1211); a second rotating shaft (1207) is fixedly installed at one end of the worm gear (1211); and a second grip plate (1208) is fixedly installed at one end of the second rotating shaft (1207).

5. The portable multifunctional foundation bearing capacity testing device as described in claim 1, characterized in that: The winch (5) has a base (503) on one side, and the base (503) has a socket (504); the base (1) has a groove (101) on one side, and a positioning pin (103) is fixedly installed in the groove (101). The base (503) is inserted into the groove (101), and the socket (504) is inserted into the positioning pin (103).

6. The portable multifunctional foundation bearing capacity testing device as described in claim 5, characterized in that: The disassembly mechanism (11) includes a threaded post (1102); the base (1) has a hole (102) communicating with the groove (101), one end of the hole (102) is provided with a threaded sleeve (1103), and the threaded sleeve (1103) is fixedly connected to the base (1), the threaded post (1102) passes through the hole (102), and the threaded post (1102) is threadedly connected to the threaded sleeve (1103), one end of the threaded post (1102) is rotatably connected to a pressure seat (1104), and the pressure seat (1104) is slidably disposed in the groove (101), and the other end of the threaded post (1102) is fixedly installed with a first grip plate (1101).

7. The portable multifunctional foundation bearing capacity testing device as described in claim 1, characterized in that: The guide wheel part (4) includes a top beam (401) and wheel bodies (402); the top beam (401) is fixedly connected to the top of the movable frame (3), and there are two wheel bodies (402), and the two wheel bodies (402) are respectively rotatably installed at both ends of the top beam (401).

8. The portable multifunctional foundation bearing capacity testing device as described in claim 1, characterized in that: The vertical guide mechanism (10) includes a sliding sleeve (1003) and a guide rod (1004); the guide rod (1004) is fixedly connected to the side wall of the base frame (2), the sliding sleeve (1003) is slidably installed on the guide rod (1004), the sliding sleeve (1003) is connected to a sleeve body (1001) through a connecting rod (1002), and the sleeve body (1001) is connected to the penetrating rod (6).

9. A portable multifunctional foundation bearing capacity testing device as described in claim 1, characterized in that: The top of the hammer body (8) is provided with a recessed hole (801), the lifting seat (9) is inserted into the recessed hole (801), and the lifting seat (9) is slidably sleeved onto the guide post (13); The locking mechanism includes a sliding pin (903); the side wall of the lifting seat (9) is provided with a sliding groove (902), the sliding pin (903) is movably installed in the sliding groove (902), and both ends of the sliding pin (903) are provided with spherical surfaces. The top wall of the recessed hole (801) is provided with a protruding ring (802), and the top and bottom edges of the inner ring of the protruding ring (802) are provided with chamfered surfaces. The protruding ring (802) is suspended to one end of the sliding pin (903), and the other end of the sliding pin (903) abuts against the rod surface of the guide post (13); the bottom surface of the sliding groove (902) is inclined to the horizontal plane.

10. A portable multifunctional foundation bearing capacity testing device as described in claim 1, characterized in that: The unlocking part includes a thin rod (1301), a guide hole is provided at the top end of the guide post (13), the thin rod (1301) is slidably installed in the guide hole, a baffle (1303) is fixedly connected to the top end of the thin rod (1301), and a conical surface (1302) is provided at the top end of the guide post (13).

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