CN213946271U

CN213946271U - Adjustable wrench capable of rapidly clamping nuts of different specifications

Info

Publication number: CN213946271U
Application number: CN202022912965.1U
Authority: CN
Inventors: 盖立武; 史浩东; 顾星
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-08-13
Anticipated expiration: 2030-12-08

Abstract

The invention provides an adjustable wrench capable of rapidly clamping nuts of different specifications, which comprises a wrench main body, wherein the wrench main body consists of a wrench head and a wrench handle which are arranged on the left and the right, the wrench head comprises a first shell and a clamping component arranged in the first shell, and the wrench handle comprises a second shell and an operation component arranged in the second shell. The invention not only can bear force on multiple surfaces, but also can control and adjust the number of the clamping jaws and the size of the opening, and has the advantages of high speed, multi-point stress, multiple applicable nut specifications, low manufacturing cost and long service life; the number of the clamping jaws and the size of the opening can be adjusted according to the specification of the nut, so that the application range is wide, the number of the clamping jaws can be increased according to needs, a plurality of surfaces of the nut can be stressed simultaneously, and the clamping force and the reliability are greatly improved; the clamping of the nut adopts the gear rack rapid transmission, thereby greatly improving the transmission efficiency and the clamping speed.

Description

Adjustable wrench capable of rapidly clamping nuts of different specifications

Technical Field

The invention relates to the technical field of adjustable wrenches, in particular to an adjustable wrench capable of rapidly clamping nuts of different specifications.

Background

The nut is of a plurality of types, the most common nut is an adjustable wrench and a solid wrench, the adjustable wrench controls the size of a wrench opening by rotating a lead screw, and during operation, the nut edges and corners are easy to deform and slip to cause accidents due to the fact that only two surfaces are stressed; the solid wrench is characterized by large bearing force, fixed size and single specification, so that the solid wrench can only be used for nuts matched with the size of the solid wrench, and in order to meet working requirements, a plurality of solid wrenches with different specifications are required to be equipped.

Disclosure of Invention

In order to solve the problems, the invention discloses an adjustable wrench capable of rapidly clamping nuts with different specifications, which effectively overcomes the defects of the two wrenches, can bear force on multiple surfaces, can control and adjust the number of clamping jaws and the size of an opening, and has the advantages of rapidness, multipoint stress, more applicable nut specifications, low manufacturing cost and long service life.

The specific scheme is as follows:

the utility model provides a but monkey spanner of different specification nuts of quick centre gripping which characterized in that: the wrench comprises a wrench main body, wherein the wrench main body consists of a wrench head and a wrench handle which are arranged on the left and the right, the wrench head comprises a first shell and a clamping assembly arranged in the first shell, and the wrench handle comprises a second shell and an operation assembly arranged in the second shell; the clamping assembly comprises a screw rod arranged in the middle of an inner cavity of the first shell, the screw rod is vertically arranged, the lower end of the screw rod is rotatably connected with the middle of the bottom surface of the first shell, a first gear is fixed at the upper end of the screw rod, a nut matched with the screw rod is connected to the screw rod in a threaded manner, at least two connecting shafts are uniformly distributed on the outer side of the nut along the circumferential direction, the central axis of each connecting shaft is coplanar with the central axis of the screw rod, one end of each connecting shaft is hinged to the outer side of the nut, the other end of each connecting shaft is hinged to a clamping jaw, at least two first strip-shaped sliding holes are uniformly distributed on the bottom surface of the first shell along the circumferential direction, the first strip-shaped sliding holes are arranged along the radial direction of the lower end of the screw rod and are matched with the clamping jaws, and the clamping jaws can be slidably arranged in the corresponding first strip-shaped sliding holes; the control assembly comprises a movable rack and a fixed rack which are arranged in front and back, the movable rack and the fixed rack are both horizontally arranged and are parallel to each other, wherein the fixed rack is fixed on the rear side of an inner cavity of the second shell, the movable rack is arranged on the front side of the inner cavity of the second shell in a left-right sliding manner, the bottom surface of the fixed rack is not lower than the top surface of the movable rack, the left section of the movable rack is meshed with the first gear, a vertically arranged control rod is further arranged between the movable rack and the fixed rack, the upper end of the control rod extends out of the top surface of the second shell and is connected with an opening-closing button, the lower end of the control rod is provided with a spring assembly, the spring assembly is arranged in the second shell in a left-right sliding manner, the control rod is further provided with a slide block and a second gear which are arranged up and down, the slide block is fixedly connected with the right end of the movable rack, the top surface of the second shell is provided with a second strip-shaped slide hole matched with the slide block, the second bar-shaped sliding hole is parallel to the movable rack, the sliding block can slide left and right and is arranged in the second bar-shaped sliding hole, and the second gear is fixedly arranged on the operating rod and is matched with the movable rack and the fixed rack.

As a further improvement of the invention, the spring assembly comprises a supporting slide seat, the supporting slide seat is of a cylindrical structure with an opening at the upper end, a spring is arranged in an inner cavity of the supporting slide seat, a connecting disc is arranged at the upper end of the spring, the lower end of the spring is connected with the bottom of the inner cavity of the supporting slide seat, and the connecting disc is connected with the lower end of the operating rod and can be placed in the supporting slide seat in a vertically sliding manner.

As a further improvement of the present invention, the first housing includes a housing cover and a housing seat which are arranged up and down, and the housing cover and the housing seat are connected by a snap.

As a further improvement of the invention, the bottom of the outer side of the shell seat is provided with an auxiliary through groove communicated with the outer end of the first strip-shaped sliding hole.

As a further improvement of the invention, the right end of the second strip-shaped sliding hole is provided with an auxiliary groove.

As a further improvement of the invention, the number of the connecting shaft, the clamping jaws and the first strip-shaped sliding hole is six.

The invention has the beneficial effects that:

1. the multi-surface stress can be realized, the number of the clamping jaws and the size of the opening can be controlled and adjusted, and the multi-surface stress clamp has the advantages of rapidness, multi-point stress, multiple applicable nut specifications, low manufacturing cost and long service life;

2. the number of the clamping jaws and the size of the opening can be adjusted according to the specification of the nut, so that the application range is wide, the number of the clamping jaws can be increased according to needs, a plurality of surfaces of the nut can be stressed simultaneously, and the clamping force and the reliability are greatly improved;

3. the clamping of the nut adopts the gear rack rapid transmission, thereby greatly improving the transmission efficiency and the clamping speed.

Drawings

Fig. 1 is a schematic view of an adjustable wrench capable of rapidly clamping nuts of different specifications according to the present invention.

FIG. 2 is a schematic view of the present invention with the cover removed.

Fig. 3 is a schematic view of the present invention with the first housing and the second housing removed.

FIG. 4 is a schematic view of a spring assembly of the present invention.

Fig. 5 is a schematic view of the claw in the maximum opening and closing state of the invention.

Fig. 6 is a schematic view of the jaws clamping the allen nut in the present invention.

Fig. 7 is a schematic view of the jaws gripping an outer hex nut of the present invention.

List of reference numerals:

1-a shell cover, 2-a shell seat, 3-a second shell, 4-a screw rod, 5-a first gear, 6-a nut, 7-a jaw, 8-a first strip-shaped sliding hole, 9-a movable rack, 10-a fixed rack, 11-a control rod, 12-an opening and closing button, 13-a sliding block, 14-a second gear, 15-a second strip-shaped sliding hole, 16-a supporting sliding seat, 17-a spring, 18-a connecting disc, 19-a buckle, 20-an auxiliary through groove, 21-an auxiliary groove and 22-a connecting shaft.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.

As shown in the figure, the adjustable wrench capable of rapidly clamping nuts of different specifications comprises a wrench main body, wherein the wrench main body consists of a wrench head and a wrench handle which are arranged on the left and the right, the wrench head comprises a first shell and a clamping component arranged in the first shell, and the wrench handle comprises a second shell 3 and an operation component arranged in the second shell 3; the clamping assembly comprises a screw rod 4 arranged in the middle of an inner cavity of the first shell, the screw rod 4 is vertically arranged, the lower end of the screw rod 4 is rotatably connected with the middle of the bottom surface of the first shell, a first gear 5 is fixed at the upper end of the screw rod 4, a nut 6 matched with the screw rod 4 is connected to the screw rod 4 in a threaded manner, at least two connecting shafts 22 are uniformly distributed on the outer side of the nut 6 along the circumferential direction, the central axis of each connecting shaft 22 is coplanar with the central axis of the screw rod 4, one end of each connecting shaft 22 is hinged to the outer side of the nut 6, a clamping jaw 7 is hinged to the other end of each connecting shaft, at least two first strip-shaped sliding holes 8 are uniformly distributed on the bottom surface of the first shell along the circumferential direction, the first strip-shaped sliding holes 8 are arranged along the radial direction of the lower end of the screw rod 4 and are matched with the clamping jaws 7, and the clamping jaws 7 can be slidably arranged in the corresponding first strip-shaped sliding holes 8; the control assembly comprises a movable rack 9 and a fixed rack 10 which are arranged in front and back, the movable rack 9 and the fixed rack 10 are both horizontally arranged and are parallel to each other, wherein the fixed rack 10 is fixed on the rear side of the inner cavity of the second shell 3, the movable rack 9 can be arranged on the front side of the inner cavity of the second shell 3 in a left-right sliding manner, the bottom surface of the fixed rack 10 is not lower than the top surface of the movable rack 9, the left section of the movable rack 9 is meshed with the first gear 5, a vertically arranged control rod 11 is also arranged between the movable rack 9 and the fixed rack 10, the upper end of the control rod 11 extends out of the top surface of the second shell 3 and is connected with an opening-closing button 12, the lower end of the control rod is provided with a spring assembly, the spring assembly can be arranged in the second shell 3 in a left-right sliding manner, a vertically arranged slide block 13 and a second gear 14 are also arranged on the control rod 11, the slide block 13 is fixedly connected with the right end of the movable rack 9, the top surface of the second shell 3 is provided with a second strip-shaped sliding hole 15 matched with the slide block 13, the second bar-shaped sliding hole 15 is parallel to the movable rack 9, the slider 13 can slide left and right in the second bar-shaped sliding hole 15, and the second gear 14 is fixedly arranged on the operating rod 11 and is matched with the movable rack 9 and the fixed rack 10.

In this embodiment, the spring assembly includes a supporting slide 16, the supporting slide 16 is a cylindrical structure with an open upper end, a spring 17 is disposed in an inner cavity of the supporting slide 16, a connecting plate 18 is disposed at an upper end of the spring 17, a lower end of the spring is connected to a bottom of the inner cavity of the supporting slide 16, and the connecting plate 18 is connected to a lower end of the control rod 11 and is disposed in the supporting slide 16 in a vertically slidable manner.

In this embodiment, the first housing includes a housing cover 1 and a housing base 2 disposed up and down, and the housing cover 1 and the housing base 2 are connected by a snap 19.

In this embodiment, the bottom of the outer side of the housing base 2 is provided with an auxiliary through groove 20 communicated with the outer end of the first strip-shaped sliding hole 8, and the right end of the second strip-shaped sliding hole 15 is provided with an auxiliary groove 21, so that the installation of the clamping jaws 7 and the sliding block 13 is facilitated.

In the present embodiment, the number of the connecting shaft 22 and the number of the jaws 7 are six, which is preferable in the present invention, and those skilled in the art can select different numbers of jaws 7, such as two, four, etc., according to the actual specification of the nut; in addition, the number of the first bar-shaped sliding holes 8 in the present invention is preferably six, so that two or more than two claws 7 can be conveniently installed, but a person skilled in the art can select different numbers of the first bar-shaped sliding holes 8, such as two, four, etc.

The working principle of the invention is as follows:

in a natural state, the spring 17 is not acted by external force, at the moment, the second gear 14 is meshed with the fixed rack 10, and the whole adjustable wrench is in a complete locking state; in use, the operating rod 11 moves downwards by pressing the opening-closing button 12 until the second gear 14 is completely separated from the fixed rack 10, at which time the second gear 14 is meshed with the movable rack 9, and the spring 17 is in a compressed state, then the opening-closing button 12 is pushed, the movable rack 9 moves synchronously with the operating rod 11 under the driving of the operating rod 11 and controls the first gear 5 to rotate, because the screw 4 is fixedly connected with the first gear 5, when the first gear 5 rotates, the screw 4 rotates synchronously with the first gear, in the invention, because the outer side of the nut 6 is connected with the jaw 7 through the connecting shaft 22, and the jaw 7 is limited in the first strip-shaped sliding hole 8, the nut 6 is clamped in the circumferential direction and cannot rotate, therefore, when the screw 4 rotates, the nut 6 moves upwards or downwards under the action of the screw thread, and further the opening-closing size of the jaw 7 can be controlled, and after the position of the jaw 7 is determined, the opening and closing button 12 is released and the lever 11 is operated to spring back upwards under the spring force of the spring 17, at which point the second gear 14 disengages the movable rack 9 and meshes with the fixed rack 10, so that the wrench body is again fully locked.

The invention not only can bear force on multiple surfaces, but also can control and adjust the number of the clamping jaws and the size of the opening, and has the advantages of high speed, multi-point stress, multiple applicable nut specifications, low manufacturing cost and long service life; the quantity and the opening size of jack catch can be adjusted according to the specification of nut, and not only application scope is wide, can increase the figure of jack catch as required moreover, makes the nut can a plurality of faces atress simultaneously, has improved clamping-force and reliability greatly, and the rack and pinion high-speed drive is adopted in the centre gripping of nut, has improved transmission efficiency greatly, has promoted clamping speed.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims

1. The utility model provides a but monkey spanner of different specification nuts of quick centre gripping which characterized in that: the wrench comprises a wrench main body, wherein the wrench main body consists of a wrench head and a wrench handle which are arranged on the left and the right, the wrench head comprises a first shell and a clamping component arranged in the first shell, and the wrench handle comprises a second shell (3) and an operation component arranged in the second shell (3);

the clamping assembly comprises a screw rod (4) arranged in the middle of the inner cavity of the first shell, the screw rod (4) is vertically arranged, the lower end of the first gear is rotationally connected with the middle part of the bottom surface of the first shell, the upper end of the first gear is fixed with a first gear (5), the screw rod (4) is in threaded connection with a nut (6) matched with the screw rod, at least two connecting shafts (22) are uniformly distributed on the outer side of the nut (6) along the circumferential direction, the central axis of each connecting shaft (22) is coplanar with the central axis of the screw rod (4), wherein one end of the connecting shaft (22) is hinged with the outer side of the nut (6), the other end is hinged with a claw (7), at least two first strip-shaped sliding holes (8) are uniformly distributed on the bottom surface of the first shell along the circumferential direction, the first strip-shaped sliding hole (8) is arranged along the radial direction of the lower end of the screw rod (4), the clamping jaws (7) are matched with the clamping jaws (7), and the clamping jaws (7) can be slidably arranged in the corresponding first strip-shaped sliding holes (8);

the control assembly comprises a movable rack (9) and a fixed rack (10) which are arranged in front and back, the movable rack (9) and the fixed rack (10) are horizontally arranged and are parallel to each other, the fixed rack (10) is fixed on the rear side of an inner cavity of the second shell (3), the movable rack (9) can be arranged on the front side of the inner cavity of the second shell (3) in a left-right sliding mode, the bottom surface of the fixed rack (10) is not lower than the top surface of the movable rack (9), the left section of the movable rack (9) is meshed with the first gear (5), a vertically arranged control rod (11) is further arranged between the movable rack (9) and the fixed rack (10), the upper end of the control rod (11) extends out of the top surface of the second shell (3) and is connected with an opening and closing button (12), the lower end of the control rod is provided with a spring assembly, and the spring assembly can be arranged in the second shell (3) in a left-right sliding mode, the improved structure of the automobile seat is characterized in that a sliding block (13) and a second gear (14) which are arranged up and down are further arranged on the control rod (11), the sliding block (13) is fixedly connected with the right end of the movable rack (9), a second bar-shaped sliding hole (15) matched with the sliding block (13) is formed in the top surface of the second shell (3), the second bar-shaped sliding hole (15) is parallel to the movable rack (9), the sliding block (13) can slide left and right and is arranged in the second bar-shaped sliding hole (15), and the second gear (14) is fixedly arranged on the control rod (11) and is matched with the movable rack (9) and the fixed rack (10).

2. The adjustable wrench capable of rapidly clamping nuts of different specifications as claimed in claim 1, wherein: spring unit is including supporting slide (16), support slide (16) and be upper end open-ended cask column structure, be equipped with spring (17) in its inner chamber, the upper end of spring (17) is equipped with connection pad (18), and the lower extreme is connected bottom the inner chamber that supports slide (16), connection pad (18) are connected with the lower extreme of control rod (11) to can be gliding arrange in support slide (16) from top to bottom.

3. The adjustable wrench capable of rapidly clamping nuts of different specifications as claimed in claim 1, wherein: the first shell comprises a shell cover (1) and a shell seat (2) which are arranged up and down, and the shell cover (1) is connected with the shell seat (2) through a buckle (19).

4. The adjustable wrench capable of rapidly clamping nuts of different specifications as claimed in claim 3, wherein: and an auxiliary through groove (20) communicated with the outer end of the first strip-shaped sliding hole (8) is formed in the bottom of the outer side of the shell seat (2).

5. The adjustable wrench capable of rapidly clamping nuts of different specifications as claimed in claim 1, wherein: and an auxiliary groove (21) is formed at the right end of the second strip-shaped sliding hole (15).

6. The adjustable wrench capable of rapidly clamping nuts of different specifications as claimed in claim 1, wherein: the six connecting shafts (22), the six clamping jaws (7) and the six first strip-shaped sliding holes (8) are all arranged.