Cone taking wrench

Abstract

The utility model provides a cone taking wrench, which belongs to the technical field of building construction and comprises a locking component and a knob component, one end of the locking component is suitable for being detachably connected with a cone pre-buried in a concrete wall, and the other end of the locking component is suitable for being detachably connected with the knob component. The side, away from the cone, of the locking component is suitable for being detachably connected with the knob component, and when the locking component rotates synchronously along with the knob component, the cone is suitable for rotating synchronously along with the locking component. By means of the cone taking wrench, the whole wrench can be fixed to a cone, the wrench is not prone to slipping during operation, the cone which is not prone to being taken out can be taken out by applying large force, the cone cannot fall off after being detached, and safety and detaching operation efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, more particularly to a kind of takes cone wrench. BACKGROUND

[0002] In building construction, the tension bolt formwork is a commonly used formwork fixing method in concrete construction, mainly used for the concrete pouring of vertical structures such as walls. After the concrete pouring and reaching a certain strength, the pouring formwork is removed, and the cone (conical nut) embedded on the surface of the concrete is disassembled and recycled.

[0003] Currently, self-made L-shaped hexagonal wrenches are mostly used for disassembling the cone in construction sites. The tool cannot be fixed during the construction process, and the wrench is easy to fall off when twisting the wrench against the cone. Moreover, the wrench has no locking function for the cone, which may cause falling risk and has great safety hazards. The greater the gripping force of the concrete on the cone, the greater the difficulty and safety hazards of disassembling the cone. When taking out the cone, the cone needs to be rotated several times to be taken out from the concrete through the thread between the tension bolt and the cone, which is time-consuming and low in work efficiency. In a narrow space, the disassembling difficulty is further increased, and the disassembling efficiency is lower.

[0004] The Chinese utility model patent with publication number CN208930157U discloses a conical nut disassembling assembly in concrete wall, which comprises a conical nut, a disassembling seat, a handle, and a stop structure. The disassembling seat cooperates with the conical nut, the handle cooperates with the disassembling seat, the stop structure passes through the handle and the disassembling seat, the head magnet is adsorbed to the conical nut, which prevents the conical nut from moving up and down in the vertical direction during the disassembling process, and avoids the conical nut from falling into the reserved hole during the dragging process to the outside of the wall after disassembling, which is not easy to take out. However, in the above-mentioned conical nut disassembling assembly, the conical nut can be separated from the handle and the disassembling seat during the disassembling process, which may cause the handle to fall off and the conical nut to fall after disassembling. Moreover, the handle is a fixed structure, which needs to be repeatedly operated when disassembling the conical nut in a narrow space, which is time-consuming and low in work efficiency.

[0005] The Chinese utility model patent with publication number CN207189536U discloses a conical nut disassembling tool for embedded parts, which comprises a wrench head, a wrench jaw, and a ratchet wrench connected in sequence. The wrench head is provided with a fastening bolt and a bolt pin in the center. The bolt pin corresponds to the opening of the conical nut, and the fastening bolt is threadedly connected to the conical nut to connect the wrench head and the conical nut. The ratchet wrench is connected to the wrench jaw, the wrench jaw is connected to the hook-shaped body on the wrench head through the clamping jaw, and the wrench jaw is driven by rotating the ratchet wrench to drive the wrench head, thereby realizing the disassembling of the conical nut. However, in the above-mentioned scheme, the connection of the wrench head and the conical nut can realize the fastening of the wrench head and the conical nut, but the wrench jaw and the wrench head may still fall from a high place during the disassembling process. Moreover, the ratchet wrench, the wrench head, and the clamping jaw are not integrated, which still has the risk of falling off during the operation of the ratchet wrench, especially when the disassembling force of the conical nut is large.

[0006] In summary, the prior art in the demolition cone, there is a wrench off, cone removed after falling from a high altitude problem, there are significant defects. SUMMARY

[0007] In view of this, the utility model provides a take cone wrench, aims at solving the technical problem of wrench off and cone falling after demolition in the process of demolition cone.

[0008] The technical scheme of the utility model is as follows:

[0009] A take cone wrench is used for disassembling the cone embedded in the concrete wall, a hexagonal groove and a first internal thread hole are formed on the central axis of the cone and are communicated with each other, and the take cone wrench comprises a locking member and a rotating member, one end of the locking member is suitable for detachable connection with the cone, the side of the locking member away from the cone is suitable for detachable connection with the rotating member, and the locking member is configured to rotate synchronously with the rotating member, and the cone is suitable for rotating synchronously with the locking member.

[0010] Further, the locking member comprises a connecting rod, a rotating shaft sleeved on the connecting rod and a fixing rod clamped at one end of the connecting rod away from the cone.

[0011] The rotating shaft comprises a first prism and a second prism arranged coaxially, one end of the first prism away from the second prism is suitable for matched connection with the hexagonal groove of the cone, and the second prism is suitable for matched connection with the rotating member.

[0012] A first through hole is formed on the central axis of the first prism and the second prism and penetrates through, and the connecting rod is suitable for rotating and penetrating through the first prism and the second prism through the first through hole; a first external thread is arranged on the side of the connecting rod close to the cone, and the first external thread is suitable for matched connection with the first internal thread hole of the cone.

[0013] Further, the rotating member comprises a handle, a ratchet clamped at the end of the handle, a tooth shaft connected to the handle and abutting against the outer circumference of the ratchet, and a rebounding tab;

[0014] A second through hole is formed on the central axis of the ratchet and penetrates through, and the ratchet is suitable for sleeving on the second prism of the rotating shaft through the second through hole;

[0015] One end of the rebounding tab is hinged to the handle, and the other end abuts against the outer circumference of the tooth shaft, and the tooth shaft and the rebounding tab are suitable for allowing continuous rotation when the ratchet rotates in one direction and blocking the ratchet from continuing to rotate when the ratchet rotates in the other direction.

[0016] Further, the handle includes a handle and a ratchet frame connected to the end of the handle;

[0017] The ratchet frame includes a first wall plate and a second wall plate arranged in parallel and spaced apart, and a mounting groove for accommodating the ratchet wheel is formed between the first wall plate and the second wall plate; the ratchet wheel is adapted to be supported in the mounting groove by the rotating shaft;

[0018] First positioning hole and second positioning hole corresponding to the position of the second through hole of the ratchet wheel are respectively formed in the first wall plate and the second wall plate; the rotating shaft further includes a first positioning shaft and a second positioning shaft adapted to rotate with the first positioning hole and the second positioning hole, respectively, and the first positioning shaft is located between the first prism and the second prism, and the second positioning shaft is located between the second prism and the fixed rod;

[0019] The handle is adapted to drive the ratchet frame to rotate, thereby driving the ratchet wheel to rotate on the rotating shaft following the second prism.

[0020] Further, the diameter of the first positioning hole is greater than the diameter of the second positioning hole, and the diameter of the first positioning shaft is greater than the diameter of the second positioning shaft.

[0021] Further, the handle and the ratchet frame are detachably connected.

[0022] Further, the same third positioning hole is formed in the first wall plate and the second wall plate, and the two sides of the tooth shaft are adapted to reciprocate in the corresponding third positioning hole;

[0023] The rebounding tab is arranged between the first wall plate and the second wall plate, one end of the rebounding tab is fixed to the connection between the ratchet frame and the handle, and the other end abuts against the tooth shaft;

[0024] The tooth shaft includes a shaft rod and a shaft cap, and the shaft rod and the shaft cap are detachably connected.

[0025] Further, the diameter of the second positioning shaft is smaller than the diameter of the outer cross section of the second prism.

[0026] Further, the length of the first prism is greater than the depth of the hexagonal recess of the cone.

[0027] Further, the rotating direction of the handle is consistent with the thread rotation direction of the first external thread.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The utility model provides a take cone spanner, with locking member, can fix whole spanner on the cone, it is not easy to slip when operating, can exert greater force, take out the cone which is not easy to take out, simultaneously when the cone is taken out from the concrete, the cone is also connected with the tool through the locking member, does not exist the risk of falling, and promotes the security of the cone demolition operation, and simultaneously the take cone spanner can operate in the narrow space, need not repeatedly operate, the operation step is simple, easy to manufacture can adapt to the complex construction environment on site, simple structure also avoided the situation that the concrete blocks the part and makes the operation inconvenient, and the disassembly knob also can replace the rotating shaft of different sizes to adapt to various models of the cone according to different situations. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0031] Figure 1 It is the structure schematic diagram of the take cone spanner provided in the embodiments of the utility model;

[0032] Figure 2 It is the exploded view of the take cone spanner provided in the embodiments of the utility model;

[0033] Figure 3 It is the structure schematic diagram of the rotating shaft provided in the embodiments of the utility model;

[0034] Figure 4 It is the structure schematic diagram of the handle provided in the embodiments of the utility model.

[0035] Explanation of reference signs:

[0036] 1-locking member;11-connecting rod;111-first external thread;12-rotating shaft;121-first through hole;122-first prism;123-second prism;124-first positioning shaft;125-second positioning shaft;13-fixed rod;

[0037] 2-rotary member;

[0038] 21-handle;211-handle;212-ratchet frame;2121-first wallboard;2122-second wallboard;2123-first positioning hole;2124-second positioning hole;2125-third positioning hole;

[0039] 22-ratchet;221-second through hole;

[0040] 23 - arbor; 231 - arbor shaft; 232 - arbor cap;

[0041] 24 - rebounding tab;

[0042] 3 - cone. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0044] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provision", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0045] In the description of the present application, the description of the terms "embodiment", "one embodiment" and "one embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0046] Please refer to Figures 1-4 As shown in the drawings, the utility model embodiment provides a take cone wrench, the take cone wrench is used for disassembling the cone 3 embedded in the concrete wall, the center axis of the cone 3 is provided with the hexagonal groove and the first internal thread hole that communicate with each other, the take cone wrench includes locking member 1 and twist member 2, wherein:

[0047] One end of locking member 1 is suitable for detachable connection with cone 3, the side of locking member 1 away from cone 3 is suitable for detachable connection with twist member 2, and locking member 1 is configured to rotate synchronously with twist member 2, and cone 3 is suitable for rotating synchronously with locking member 1.

[0048] In the embodiment, when the cone 3 is disassembled, the locking member 1 connects the torsion member 2 and the cone 3 as a whole, and the rotation centers of the locking member 1, the torsion member 2 and the cone 3 are on the same axis, when the torsion member 2 is driven to rotate, the torsion member 2 drives the locking member 1 to rotate, and then the locking member 1 drives the cone 3 to rotate, so that the disassembly work of the cone 3 is realized.

[0049] Please refer to Figure 2 and Figure 3 In an embodiment of the utility model, the locking member 1 includes a connecting rod 11, a rotating shaft 12 and a fixing rod 13, wherein:

[0050] The rotating shaft 12 includes coaxially arranged first prism 122 and second prism 123, and the end of the first prism 122 away from the second prism 123 is adapted to be connected with the hexagonal groove of the cone 3, and the second prism 123 is adapted to be connected with the torsion member 2;

[0051] A first through hole 121 is formed on the central axis of the first prism 122 and the second prism 123, and the connecting rod 11 is adapted to be rotatably arranged on the first prism 122 and the second prism 123 through the first through hole 121, and the side of the connecting rod 11 close to the cone 3 is provided with a first external thread 111 adapted to be connected with the first internal thread hole of the cone 3.

[0052] Specifically, the connecting rod 11 is connected with the fixing rod 13 after passing through the first through hole 121 and the torsion member 2, so as to connect and fix the rotating shaft 12 and the torsion member 2, and by rotating the fixing rod 13, the first external thread 111 of the connecting rod 11 can be matched with the first internal thread hole in the cone 3, so as to realize the connection of the locking mechanism 1, the torsion member 2 and the cone 3 as a whole.

[0053] The first prism 122 arranged on the rotating shaft 12 is connected with the hexagonal groove of the cone 3, and the second prism 123 arranged on the rotating shaft 12 is connected with the torsion member 2.

[0054] As a preferred mode of the embodiment, the cross-sectional shape of the first prism 122 is set as a regular hexagonal structure, and correspondingly, the hexagonal groove of the cone 3 is set to be matched with the shape of the regular hexagonal structure; similarly, the cross-sectional shape of the second prism 123 can be set according to the matching hole of the torsion member 2; preferably, a commonly used six-prism in construction is adopted, obviously, other four-prisms, three-prisms and the like can also achieve the same effect, which are not limited here.

[0055] Please refer to Figure 1As shown, in one embodiment of this utility model, the rotating component 2 includes a handle 21, a ratchet 22, a gear shaft 23, and a spring-loaded paddle 24. The ratchet 22 is engaged with the end of the handle 21, while the gear shaft 23 and the spring-loaded paddle 24 are connected to the handle 21 and abut against the outer circumference of the ratchet 22.

[0056] A second through hole 221 is provided at the center of the ratchet 22 along the axial direction, so that the ratchet 22 can be sleeved on the second prism 123 of the rotating shaft 12 through the second through hole 221;

[0057] One end of the spring-loaded paddle 24 is hinged to the handle 21, and the other end abuts against the outer circumference of the gear shaft 23. In this way, the gear shaft 23 and the spring-loaded paddle 24 are adapted to allow the ratchet 22 to continue rotating when it rotates in one direction, and to prevent the ratchet 22 from continuing to rotate when it rotates in the other direction.

[0058] Specifically, the second prism 123 on the rotating shaft 12 is connected to the second through hole 221 on the ratchet 22, so that the ratchet 22 can drive the rotating shaft 12 to rotate. The ratchet 22 is connected to the end of the handle 21, and then the entire torsion component 2 is formed into a unidirectional rotating ratchet mechanism by the engagement of the tooth shaft 23 with the root of the tooth of the ratchet 22.

[0059] Reference Figure 3 , 4 As shown, in one embodiment of the present invention, the handle 21 includes a handle 211 and a ratchet carrier 212, wherein the ratchet carrier 212 is fixed to the end of the handle 211, wherein:

[0060] The ratchet carrier 212 includes a first wall plate 2121 and a second wall plate 2122 arranged in parallel and spaced apart. There is a mounting groove between the first wall plate 2121 and the second wall plate 2122 to accommodate the ratchet 22, so that the ratchet 22 is rotatably supported in the mounting groove by the rotating shaft 12.

[0061] The first wall plate 2121 has a first positioning hole 2123 corresponding to the position of the second through hole 221 of the ratchet 22, and the second wall plate 2122 also has a second positioning hole 2124 corresponding to the position of the second through hole 221 of the ratchet 22; the rotating shaft 12 also includes a first positioning shaft 124 and a second positioning shaft 125 that are adapted to rotate with the first positioning hole 2123 and the second positioning hole 2124 respectively, and the first positioning shaft 124 is located between the first prism 122 and the second prism 123, and the second positioning shaft 125 is located between the second prism 123 and the fixing rod 13;

[0062] The handle 211 is adapted to drive the ratchet frame 212 to rotate, thereby driving the ratchet 22 to rotate on the rotating shaft 12 following the second prism 123.

[0063] Specifically, the ratchet wheel 22 is arranged between the first wall plate 2121 and the second wall plate 2122, and the ratchet wheel frame 212 is provided with a first positioning hole 2123 and a second positioning hole 2124, and the ratchet wheel 22 is installed through cooperation of the locking member 1, so that the force on both sides of the ratchet wheel 22 is consistent during the disassembly operation, and the operation is more stable.

[0064] Referring to Figure 3 、 4 As shown in the embodiment, the diameter of the first positioning hole 2123 is greater than the diameter of the second positioning hole 2124, the rotating shaft 12 is further provided with a first positioning shaft 124 matched with the first positioning hole 2123, and the rotating shaft 12 is further provided with a second positioning shaft 125 matched with the second positioning hole 2124.

[0065] In the embodiment, the diameter of the first positioning hole 2123 is greater than the diameter of the second positioning hole 2124, so that the second positioning shaft 125, the second prism 123 and the first positioning shaft 124 on the rotating shaft 12 can be matched with the second positioning hole 2124, the second through hole 221 and the first positioning hole 2123 in sequence without gap.

[0066] It should be understood that the first positioning shaft 124 and the second positioning shaft 125 are preferably cylindrical to better rotate in the first positioning hole 2123 and the second positioning hole 2124.

[0067] In the embodiment, the handle 211 and the ratchet wheel frame 212 are detachably connected, and the corresponding handle 211 or locking member 1 can be replaced for different operation space and different cone 3 disassembly operation.

[0068] In the embodiment, the first wall plate 2121 and the second wall plate 2122 are both provided with the same third positioning hole 2125, and the both sides of the gear shaft 23 are adapted to reciprocate in the third positioning hole 2125.

[0069] The rebound tab 24 is arranged between the first wall plate 2121 and the second wall plate 2122, one end of the rebound tab 24 is fixed at the connection between the ratchet wheel frame 212 and the handle 211, the other end is in abutment with the gear shaft 23, and the gear shaft 23 comprises a shaft rod 231 and a shaft cap 232, and the shaft rod 231 and the shaft cap 232 are detachably connected.

[0070] In the embodiment, the third positioning hole 2125 is a long waist round hole, when the gear shaft 23 slides to one end close to the ratchet wheel 22, the gear shaft 23 is adapted to contact the tooth root of the ratchet wheel 22, and when the gear shaft 23 slides to one end away from the ratchet wheel 22, the gear shaft 23 does not contact the ratchet wheel 22.

[0071] Further, the shaft rod 231 is detachably connected with the shaft cap 232, facilitating the installation of the gear shaft 23 and the ratchet wheel 22, and obviously, the shaft rod 231 is provided with a protrusion and the size of the shaft cap 232 is greater than the width of the third positioning hole 2125, preventing the gear shaft 23 from falling off the ratchet wheel frame.

[0072] In one embodiment of the utility model, the diameter of the second positioning shaft 125 is less than the outer section circle diameter of the second prism 123, and a limiting step is formed between the two, limiting the axial direction of the whole locking member 1.

[0073] In one embodiment of the utility model, the length of the first prism 122 is greater than the depth of the hexagonal groove of the cone 3.

[0074] Obviously, the length of the first prism 122 is greater than the depth of the hexagonal groove of the cone 3, ensuring the cooperation depth of the locking member 1 and the cone 3 when being disassembled, and ensuring that the whole twist member 2 is at a certain distance from the wall surface of the disassembled cone 3, ensuring the disassembly space.

[0075] In one embodiment of the utility model, the rotation direction of the handle 21 relative to the circumferential one-way rotation of the ratchet wheel 22 is consistent with the screw rotation direction of the first external thread 111.

[0076] Specifically, the direction of the handle 21 relative to the circumferential one-way rotation of the ratchet wheel 22 is the back-off direction of the handle 21, and when the handle 21 back-off, it will be in friction contact with the fixed rod 13, driving the connecting rod 11 to rotate. When the back-off direction of the handle 21 is consistent with the tightening direction of the connecting rod 11 screwing the cone 3, the handle 21 back-off is avoided to cause the connecting rod 11 and the cone 3 to separate.

[0077] The specific working implementation process of the cone wrench is as follows:

[0078] During construction, according to the structure of the corresponding cone 3, the corresponding locking member 1 is rotated, and the locking member 1 and the twist member 2 are assembled. During disassembly, the connecting rod 11 is aligned with the threaded hole of the cone 3, and the connecting rod 11 is tightened with the cone 3, and in the tightening process, the connecting rod 11 drives the rotating shaft 12 to cooperate with the hexagonal groove of the cone 3, at this time, the cone 3, the locking member 1 and the twist member 2 are connected as a whole. When the twist member 2 is rotated, the locking member 1 follows the rotation, and the cone 3 is removed from the concrete wall surface by the torque. After the cone 3 is removed, the connecting rod 11 is rotated, the cone 3 is removed and recycled, and the next cone 3 disassembly operation is performed.

[0079] The cone wrench can fix the wrench as a whole on the cone, is not easy to slip during operation, can exert greater force, can take out the cone which is not easy to take out, is still connected with the wrench after the cone is removed, avoids falling from high altitude, and improves safety; and does not need repeated operation in narrow space operation, is simple to operate, and is high in operation efficiency; tool manufacturing steps are simple and convenient, tool materials are convenient, and processing and manufacturing are easy.

[0080] The preferred embodiments of the utility model are merely used for limiting the utility model, and the utility model can be changed and varied for the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cone wrench for removing a cone (3) embedded in a concrete wall, the cone (3) having a hexagonal recess and a first internal screw hole which are in communication with each other on a central axis of the cone (3), characterized in that, The locking member (1) includes a connecting rod (11), a rotating shaft (12) sleeved on the connecting rod (11), and a fixed rod (13) clamped at one end of the connecting rod (11) away from the cone (3).

2. The taper hand of claim 1 wherein, The rotating shaft (12) includes coaxially arranged first and second prisms (122 and 123), one end of the first prism (122) away from the second prism (123) is adapted to be connected with the hexagonal groove of the cone (3), and the second prism (123) is adapted to be connected with the twist member (2). The first and second prisms (122 and 123) are provided with a first through hole (121) penetrating the central axis, and the connecting rod (11) is adapted to be rotatably arranged on the first and second prisms (122 and 123) through the first through hole (121); and the side of the connecting rod (11) close to the cone (3) is provided with a first external thread (111) adapted to be connected with the first internal thread hole of the cone (3). The twist member (2) includes a handle (21), a ratchet wheel (22) clamped at the end of the handle (21), a pinion shaft (23) connected to the handle (21) and abutting against the outer circumference of the ratchet wheel (22), and a resilient tab (24).

3. The taper hand of claim 2 wherein, The ratchet wheel (22) is provided with a second through hole (221) along the central axis, and the ratchet wheel (22) is adapted to be sleeved on the second prism (123) of the rotating shaft (12) through the second through hole (221). One end of the resilient tab (24) is hinged to the handle (21), and the other end abuts against the outer circumference of the pinion shaft (23), and the pinion shaft (23) and the resilient tab (24) are adapted to allow the ratchet wheel (22) to continue to rotate in one direction and block the ratchet wheel (22) from continuing to rotate in the other direction. The handle (21) includes a handle (211) and a ratchet wheel frame (212) connected to the end of the handle (211).

4. The taper hand of claim 3 wherein, The ratchet wheel frame (212) includes first and second wall plates (2121 and 2122) arranged in parallel and spaced apart, and the first and second wall plates (2121 and 2122) have a mounting groove for accommodating the ratchet wheel (22); and the ratchet wheel (22) is adapted to be rotatably supported in the mounting groove by the rotating shaft (12). ​ The first wall plate (2121) and the second wall plate (2122) are respectively provided with a first positioning hole (2123) and a second positioning hole (2124) corresponding to the position of the second through hole (221) of the ratchet wheel (22); the rotating shaft (12) further comprises a first positioning shaft (124) and a second positioning shaft (125) respectively matched with the first positioning hole (2123) and the second positioning hole (2124) for rotation, and the first positioning shaft (124) is located between the first prism (122) and the second prism (123), and the second positioning shaft (125) is located between the second prism (123) and the fixed rod (13); The handle (211) is adapted to drive the ratchet wheel frame (212) to rotate, and in turn drive the ratchet wheel (22) to rotate on the rotating shaft (12) following the second prism (123).

5. The taper hand of claim 4 wherein, The diameter of the first positioning hole (2123) is greater than the diameter of the second positioning hole (2124), and the diameter of the first positioning shaft (124) is greater than the diameter of the second positioning shaft (125).

6. The taper hand of claim 4 wherein, The handle (211) and the ratchet wheel frame (212) are detachably connected.

7. The taper hand of claim 4 wherein, The first wall plate (2121) and the second wall plate (2122) are both provided with the same third positioning hole (2125), and the two sides of the pinion shaft (23) are adapted to reciprocate in the corresponding third positioning hole (2125); The resilient tab (24) is arranged between the first wall plate (2121) and the second wall plate (2122), one end of the resilient tab (24) is fixed to the connection between the ratchet wheel frame (212) and the handle (211), and the other end is in abutment with the pinion shaft (23); The pinion shaft (23) comprises a shaft rod (231) and a shaft cap (232), and the shaft rod (231) and the shaft cap (232) are detachably connected.

8. The taper hand of claim 5 wherein, The diameter of the second positioning shaft (125) is smaller than the outer cross-sectional diameter of the second prism (123).

9. The taper hand of claim 2 wherein, The length of the first prism (122) is greater than the depth of the hexagonal groove of the cone (3).

10. The taper hand of claim 3 wherein, The rotation direction of the handle (21) is consistent with the thread rotation direction of the first external thread (111).

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