CN115319675A - Multifunctional wrench - Google Patents

Abstract

The invention discloses a novel multifunctional wrench, which comprises a left movable clamp, a right movable clamp and a handle body, wherein the left movable clamp and the right movable clamp are positioned at the left side and the right side of the upper end of the multifunctional wrench, the lower part of the left movable clamp is arranged in a sliding groove, the left movable clamp can move towards or away from the right movable clamp under the action of external force, the left movable clamp and the right movable clamp can integrally rotate around a main shaft in the handle body, a part to be twisted (such as a nut and the like) can be clamped instantly by sliding the left movable clamp, the part to be twisted is twisted by clamping the left movable clamp through a clamping piece, the operation of continuously twisting the part to be twisted on the premise that the wrench is not separated from the part to be twisted can be realized under the tight fit of the parts during returning, and the mechanical structure of the multifunctional wrench is stable and firm.

Description

Multifunctional wrench

Technical Field

The invention relates to the technical field of manual tools, in particular to a multifunctional wrench.

Background

At present, most of the wrenches commonly used in production and life only have a certain function, such as a solid wrench, and only can be used for screwing parts to be screwed (such as nuts and the like) with fixed sizes, such as an adjustable wrench, which can be used for screwing parts to be screwed with different sizes, but cannot be used for continuously and rapidly screwing the parts to be screwed, and a common ratchet wrench can be used for continuously screwing the parts to be screwed, but can only be used for screwing the parts to be screwed with fixed sizes. When parts to be screwed in different sizes need to be screwed, the head of the ratchet wrench is generally replaced, which is inconvenient.

At present, the size of an opening of a wrench in the market can be changed to adapt to parts to be screwed in different sizes, meanwhile, the parts to be screwed can be continuously and rapidly screwed on the premise of not deviating from the parts to be screwed, even if the opening needs to be adjusted in advance for a long time, the opening can be adjusted to be as large as the parts to be screwed, the mechanical structure is generally poor, the torque force is small, and the industrial-grade wrench cannot be achieved.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a novel multifunctional wrench, which is simple and convenient to operate, can instantly change the size of an opening, can quickly and continuously screw a part to be screwed on the premise of not separating the part from the part to be screwed, has a stable mechanical structure and can reach an industrial level.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a novel multifunctional wrench, which comprises a left movable clamp, a right movable clamp, a handle body, a clamping piece, a first spring, a first adjusting screw rod, a second spring, a third spring, a sliding rod and the like. The left movable pliers can freely slide in a sliding groove arranged at the upper end of the right movable pliers, an accommodating cavity used for accommodating a part to be screwed is formed between the left movable pliers and the right movable pliers, the lower portion of the left movable pliers is arranged in the sliding groove, the left movable pliers can move towards or away from the right movable pliers under the action of external force, a first spring is fixed on the left movable pliers, the other end of the first spring is fixed on the right movable pliers, a first state is realized when the left movable pliers and the right movable pliers clamp the minimum outer diameter of the part to be screwed, a second state is realized when the left movable pliers and the right movable pliers clamp the maximum outer diameter of the part to be screwed, the left movable pliers can be switched between the first state and the second state, in the first state, the accommodating cavity is relatively reduced when the left movable pliers are pulled to an initialization state by the first spring, the accommodating cavity and the part to be screwed are in a clamping state, the size of the accommodating cavity is the minimum outer diameter of the part to be screwed, and is a state in which the part to be screwed formally started to be screwed. In the second state, the left movable clamp moves from the sliding groove to the direction away from the right movable clamp under the action of the part to be screwed, the accommodating cavity is relatively enlarged, and the accommodating cavity is in the maximum state and also in the state that the accommodating cavity begins to change from the maximum opening to the minimum opening.

The slide rod is arranged in the slide way of the handle body, and when the slide rod slides from one side close to the center of the handle body to the outer side close to the handle body from the slide way corresponding to the handle body, namely the slide rod is clamped into the bayonet of the right movable pliers, the right movable pliers and the handle body can be locked together.

Further, when the starting state of novel multi-functional spanner is initial state, do not carry out any operation to multi-functional spanner promptly, left side activity pincers and the laminating state together of right activity pincers, promote the litter to handle body central point during the use and make right activity pincers and handle body unblock, make left side activity pincers and right activity pincers whole rotate certain angle around the main shaft, the latch of the fastener that makes the sawtooth mouth of left side activity pincers drop, then with left side activity pincers to the direction quick travel who deviates from right activity pincers, directly clip when the size that holds the chamber is greater than or equal to and treats when treating the minimum external diameter of twisting part and twist the part, adjust first adjusting screw a little again, make latch and sawtooth mouth mesh together completely, also be first state this moment. When the screwing part needs to be unscrewed or screwed, the wrench is rotated by a certain degree by taking the center of the part to be screwed as a circle center according to the unscrewing or screwing requirement, when the wrench starts to rotate back, if the part to be screwed is in a relatively tight state, the handle body rotates around the main shaft during back screwing, the sawtooth opening and the latch are slowly and completely separated, at the moment, the edge corner of the part to be screwed pushes the left movable clamp to slide along the sliding groove in the direction of separating from the right movable clamp, at the moment, the accommodating groove starts to be enlarged, the part to be screwed cannot be driven to rotate together during rotation of the multifunctional wrench, and when the wrench rotates back by a certain degree, except the elastic acting force of the first spring, other acting forces disappear, at the moment, the left movable clamp is pulled back to the first state by the first spring, the accommodating cavity of the multifunctional wrench clamps the part to be screwed again, at the moment, the part to be screwed continues to be screwed, the operation is repeated, and the part to be screwed towards one direction can be continuously and screwed. When waiting to twist the part and be in when loose state, the spanner is twisted back the time and is waited to twist the edge edges and corners of part and can't provide sufficient effort and promote left activity pincers and slide along the sliding tray, adopts ordinary spanner to twist the mode operation of waiting to twist the part this moment and is about to the sliding rod to handle external side slip, right activity pincers and the body locking of palm promptly together, and the first adjusting screw of gyration is finely tuned again, makes the sawtooth mouth and bayonet socket mesh together completely, just also makes left activity pincers also locked together, makes multi-functional spanner become an ordinary spanner.

Further, the arrangement of the first spring may be changed to the arrangement of the fourth spring or the arrangement of the fifth spring.

Further, the first adjusting screw rod can be changed into a structure that the first inclined plane is taken as a cross section, the rear end part is completely cut off, and the rear half part forms a cone body, or the rear end part including the first inclined plane is directly and completely cut off, and the rear half part forms a cylinder body.

Further, a fine adjustment piece and a second adjusting screw rod can be arranged in the handle body to replace the first adjusting screw rod, and the same fine adjustment effect of enabling the clamping piece to move left and right is achieved.

Furthermore, the handle body can be arranged into a bending structure to adapt to a special narrow space.

The whole multifunctional wrench can be further set into a multifunctional torque wrench which can display the torque in real time through a pressure sensor, a power supply, a processing center, an adjusting button and a display.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the left movable clamp, the right movable clamp and the handle body can be separated or locked as required, so that adjustment is created for instantly changing the size of the accommodating cavity, and fine adjustment of left and right movement of the clamping piece is carried out through the first adjusting screw rod or the second adjusting screw rod and the fine adjustment piece, so that the accurate size of any part to be screwed is achieved. Can drive left activity pincers and slide along the sliding tray under the effect of waiting to twist the part for left activity pincers change between first state and second state, when waiting to twist the part comparison tight, when the spanner back-twists certain angle, make left activity pincers get back to first state under the elastic force effect of first spring, reach the size that changes and hold the chamber and press from both sides tightly once more and wait to twist the part, realize quick not breaking away from and wait to twist the part in succession under the prerequisite of twisting the part. Under some special conditions, the left movable pliers are not allowed to freely slide in the sliding grooves, and the multifunctional wrench can be changed into a common wrench, namely the left movable pliers, the right movable pliers and the handle body are locked together, so that the multifunctional wrench can be in a state of freely switching functions of the multifunctional wrench and the common wrench. And this novel multi-functional spanner can also set to and can show torsion size torque spanner, and mechanics stable in structure, can reach industrial level.

Drawings

The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.

FIG. 1 is a front perspective view of a multi-function wrench according to embodiment 1;

FIG. 2 is an exploded perspective view of the multi-purpose wrench of embodiment 1;

FIG. 3 is a rear perspective view of the multi-function wrench of embodiment 1;

FIG. 4 is a schematic view of a handle body in embodiment 1;

FIG. 5 is a partial schematic view of a multi-function wrench according to embodiment 2;

FIG. 6 is a partial schematic view of a multi-function wrench according to embodiment 3;

FIG. 7 is a schematic view of two other modified structures of the first adjusting screw in embodiment 4;

FIG. 8 is a schematic view showing another modified structure of the handle body of the multi-purpose wrench of embodiment 5;

FIG. 9 is a schematic view of a bendable structure of the handle of the multi-purpose wrench of embodiment 6;

FIG. 10 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 9;

fig. 11 is a schematic view of the multi-function torque wrench of embodiment 7.

Wherein: the adjustable clamp comprises a left movable clamp 1, a sliding groove 1-1, a containing cavity 1-2, a right movable clamp 2, a handle body 3, a sawtooth opening 4, a first spring 5, a bayonet 6, a second inclined surface 7, a latch 8, a first fixing rod 9, a second spring 10, a clamping piece 11, a third spring 12, an inclined edge 12-1, an elastic washer 13, a sliding rod 14, a first inclined surface 15, a first adjusting screw 16, a threaded hole 16-1, a main shaft 17, a limiting piece 18, a third spring slideway 19, a fourth spring slideway 20, a second fixing rod 21, a fourth spring 22, a third fixing rod 23, a fifth spring 24, a fine adjusting piece 25, a second adjusting screw 25-1, a sixth spring 25-2, a gear edge 26, a secondary shaft 26-1, an adjusting piece 27, a pressing handle 28, a clamping head 29, a first pressure sensor 30, a lead 31, a second pressure sensor 32, a power supply and processing center 33, an adjusting button 34 and a display 35.

Detailed Description

Example 1

The state of the multifunctional wrench which is not operated is the initialization state, when a part to be screwed needs to be screwed (generally screwed clockwise), firstly the sliding rod 14 is slid to one end of the inner side of the handle body 3, because of the function of the elastic washer 13, when the sliding rod 14 is released, the multifunctional wrench is fixed in place, then the multifunctional wrench is in the unlocking state, the left movable clamp 1 and the right movable clamp 2 as a whole start to rotate around the main shaft 17 in a clockwise direction for a certain angle, the right movable clamp 2 and the handle body 3 can be separated into a gap with a certain angle, the latch 8 of the clamping piece 11 and the serrated mouth 4 on the left movable clamp 1 are completely disengaged, then the left movable clamp 1 is rapidly slid along the direction of the sliding groove 1-1 departing from the right movable clamp 2, the accommodating cavity 1-2 is rapidly enlarged, because of the limiting piece 18, the left movable clamp 1 can not be disengaged from the sliding groove 1-1, when the size of the left movable clamp is larger than the minimum outer diameter of a part to be screwed, the accommodating cavity 1-2 is directly sleeved on the part to be screwed, then the left movable clamp 1 is released, because one end of the first spring 5 is fixed on the left movable clamp 1, the other end of the first spring is fixed with the right movable clamp 2 by the first fixed rod 9, at the moment, the left movable clamp 1 and the right movable clamp 2 tightly clamp the part to be screwed under the tension action of the first spring 5, two parallel side surfaces of the part to be screwed are tightly attached with two parallel side surfaces of the accommodating cavity 1-2, and because the third spring 12 is arranged in the third spring slideway 19 in figure 3, the left movable clamp 1 and the right movable clamp 2 can automatically rotate anticlockwise around the main shaft 17 under the elastic force action of the third spring 12 until a gap with a certain angle formed by the right movable clamp 2 and the handle body 3 disappears, this is the first state. Because the second inclined plane 7 and the first inclined plane 15 of the clamping piece 8 are tightly attached together all the time under the action of the elastic force of the second spring 10, the first adjusting screw 16 is rotated into the handle body 3 through the threaded hole 16-1 as the screw rotates, and the first adjusting screw 16 is rotated clockwise or anticlockwise according to needs, and can slowly enter or exit the handle body 3, so that the interaction between the first inclined plane 15 and the second inclined plane 7 enables the clamping piece to move left or right, and finally the clamping tooth 8 is completely meshed with the sawtooth opening 4. If the part to be screwed is in a loose state (for example, the nut and the screw rod are just sleeved together), the push sliding rod 14 needs to slide to one end of the outer side of the handle body 3, the middle part of the sliding rod 14 enters the bayonet 6 of the right movable clamp 2, the left movable clamp 1, the right movable clamp 2 and the handle body 3 are tightly locked together to form a locked state, the multifunctional wrench is changed into a common adjustable wrench, and the part to be screwed is screwed clockwise according to the common adjustable wrench. If the part to be screwed is tightened, the sliding rod 14 slides to one end of the inner side of the handle body 3, the multifunctional wrench is in an unlocked state, the part to be screwed is screwed along the direction, after the part to be screwed is rotated clockwise by a certain angle, the wrench starts to return anticlockwise, because the part to be screwed is tightened and the multifunctional wrench is in the unlocked state, the handle body 3 rotates by a certain angle around the main shaft 17, the latch 8 is completely separated from the sawtooth opening 4, the bevel edge 12-1 of the handle body 3 is abutted against the corresponding part of the right movable clamp, when the wrench is rotated anticlockwise continuously, the right movable clamp 2 and the left movable clamp 1 rotate anticlockwise around the part to be screwed together, because the part to be screwed is tightened, the edge of the part to be screwed is abutted against two sides of the accommodating cavity, the left movable clamp 1 moves along the direction of the sliding groove 1-1 deviating from the right movable clamp 2, the accommodating cavity 1-2 is gradually enlarged, when the accommodating cavity 1-2 is equal to the maximum outer diameter of the part to be screwed, the second state, when the part to be screwed continuously returns, the outer diameter of the accommodating cavity starts to be screwed, the first movable clamp starts to return to the first state, and the left movable clamp starts to be screwed, and finally returns to the reciprocating state, and the reciprocating action of the left movable clamp 2, and the first movable clamp to be screwed. If the part to be screwed needs to be unscrewed (generally in the counterclockwise direction), the front face and the back face of the wrench are exchanged to be in the lower positions, and then the front operation is carried out.

Example 2

Compared with the embodiment 1, the same operation is performed except that the first spring 5 of the embodiment 1 is changed to a fourth spring 22 of fig. 5, which is disposed in a fourth spring chute 20, a second fixing rod 21 fixes one end of the fourth spring 22 with the left movable jaw 1, and a third fixing rod 23 fixes the other end with the right movable jaw 2.

Example 3

The same operation is performed as in embodiment 1 except that the first spring 5 in embodiment 1 is changed to the fifth spring 24 in fig. 6.

Example 4

In contrast to embodiment 1, the rest of the wrench is unchanged, the way of operation is unchanged, except that the first adjusting screw 16 is changed to the left or right structural part in fig. 7.

Example 5

Compared with the embodiment 1, other parts of the multifunctional wrench are unchanged, the handle body 3 and the internal structure thereof are changed into the structure shown in fig. 8, firstly, before the left movable pliers 1 is slid to enlarge the accommodating cavity 1-2, the sliding rod 14 is slid downwards along the corresponding slide way in the handle 3 to the vertical approximate middle position of the slide way to stop, when the left movable pliers 1 and the right movable pliers 2 are in the first state, namely, the left movable pliers 1 and the right movable pliers 2 just clamp the part to be screwed, at this time, according to the meshing degree of the latch 8 and the sawtooth opening 4, namely, the latch 11 needs to be moved leftwards or rightwards to enable the latch 8 and the sawtooth opening 4 to be completely meshed together, it is judged that the slide rod 14 is moved up or down, and the fine adjustment member 25 is moved up or down by the elastic force of the sixth spring 25-2, until the latch 8 is tightly engaged with the serration 4, the slide rod 14 stops sliding because of the elastic washer 13, and the slide rod 14 stops, and at this time, the first adjusting screw 16 in embodiment 1 is changed to the second adjusting screw 25-1 (the structure is the same as that in embodiment 4, as shown in fig. 7), the second adjusting screw 25-1 is rotated to firmly fix the fine adjustment member 25 so that it cannot slide freely, and the screwing of the member to be screwed in the desired direction is started, and other operations are the same as those in embodiment 1.

Example 6

The handle body 3 of the multi-function wrench of embodiments 1 to 5 is changed to a bendable structure, when the member to be twisted is twisted and there is an obstacle in the swept position of the handle body 3, the handle body needs to be bent, the adjusting member 27 is pressed toward the inside of the handle body 3 by force to extend the pressing handle 28 outside the handle body, so that the chuck 27 is separated from the serrated edge 26, then the bent lower half part of the handle body 3 is rotated around the secondary shaft 26-1, when the handle body is rotated to a desired state, the pressing handle 28 is released, the chuck 27 returns to the initial position under the spring force of the left side thereof, so that the bent upper and lower parts of the handle body 3 can not rotate relatively any more, and the member to be twisted can be twisted, and other operations are the same as those of embodiment 1.

Example 7

Embodiments 1 to 5 can all realize the torque wrench that shows torsion, install pressure sensor one 30 (or pressure sensor two 32) in the position in fig. 11, connect to power and signal processing center 33 with wire 31, when needing to show torsion, open the switch in the adjustment button 34, pressure sensor one 30 (or pressure sensor two 32) sends pressure data to power and signal processing center 33 from wire 31, after processing, send the signal to the size that shows torsion of display 35. The other operations of screwing the member to be screwed are the same as those of embodiment 1.

The foregoing detailed description is given by way of example only, to better enable one of ordinary skill in the art to understand the present patent, and is not to be construed as limiting the scope of this patent; any equivalent alterations or modifications made according to the spirit of the disclosure of this patent are intended to be included in the scope of this patent.

Claims (10)

1. The utility model provides a novel multifunctional wrench, includes left activity pincers (1), right side activity pincers (2), handle body (3), its characterized in that left side activity pincers (1) accessible sets up can follow in sliding tray (1-1) of right side activity pincers (2) upper end or keep away from right side activity pincers (2) direction slip, form between left side activity pincers (1) and the right side activity pincers (2) and be used for holding and twist chamber (1-2) of twisting the part, right side activity pincers (2), left side activity pincers (1), first spring (5), first dead lever (9), second spring (10), fastener (11), first adjusting screw (16) can rotate around being fixed in main shaft (17) on handle body (3) as a whole together, with free switching between first state and second state hold chamber (1-2) and wait to twist the part and be in the tight state promptly and hold the chamber size and equal to wait to twist the minimum external diameter of part under the second state hold the chamber size and equal to wait to twist the biggest external diameter of part, first end is fixed together through first activity pincers (1) and the other end (9).

2. The multi-purpose wrench according to claim 1, wherein the left movable jaw (1) and the clamping member (11) are mutually engaged, the engaging portion of the left movable jaw (1) is a toothed serrated opening (4), the engaging portion of the clamping member (11) is a clamping tooth (8) capable of being completely engaged with the serrated opening (4), and the first adjusting screw (16) is rotatably advanced or retracted in a threaded hole (16-1) in the handle body (3).

3. The multi-functional spanner according to claim 2, characterized in that the first adjusting screw (16) is provided with a first inclined surface (15), the clamping piece (11) comprises a clamping tooth (8), a second inclined surface (7), and a second spring (10), and the first inclined surface (15) and the second inclined surface (7) are always attached together.

4. The multi-function wrench as claimed in claim 3, wherein the first adjusting screw (16) is further modified to have the first inclined surface (15) as a cross section, and the rear end portion is completely cut off, and the rear end forms a cone, or directly the rear end portion including the first inclined surface (15) is completely cut off, and the rear end forms a cylinder.

5. Multifunction wrench according to claim 1, characterized in that the handle body (3) comprises a main shaft (17), a slide bar (14), a stop (18).

6. The multi-purpose wrench according to claim 5, wherein the slide rod (14) is engaged with the engaging opening (6) when sliding to the outside of the handle body (3) to fix the left movable jaw (1), the right movable jaw (2) and the handle body (3) together, and the slide rod (14) is released from the fixed relationship when sliding to the inside of the handle body (3).

7. The multi-function wrench as claimed in claim 1, wherein the starting state of the multi-function wrench is an initialization state, the first state of claim 1 is a state in which the receiving cavity (1-2) just clamps the minimum outer diameter of the member to be screwed, and the second state of claim 1 is a state in which the left movable jaw (1) slides along the sliding groove (1-1) under the action of the member to be screwed in a direction away from the right movable jaw (2), and the multi-function wrench starts to return to the critical state when the size of the receiving cavity (1-2) just equals to the maximum outer diameter of the member to be screwed.

8. Multifunction wrench according to claim 1, characterized in that the first spring (5) arrangement can also be changed to a fourth spring (22) arrangement or a fifth spring (24) arrangement.

9. The multi-purpose wrench according to claim 1, wherein the clamping member (11) is further adjustable in the left-right direction by a fine adjustment member (25), the fine adjustment member (25) is pulled downward by a slide rod (14), the fine adjustment member (25) is reset by a sixth spring (25-2), and the handle body (3) further comprises a third spring slide (19) in which a third spring (12) is disposed.

10. The multi-function wrench according to claim 1, wherein the handle body (3) further comprises a second pressure sensor (32), a power supply and processing center (33), an adjusting button (34), and a display (35), and the handle body (3) is further configured to be bendable.

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