CN211466765U

CN211466765U - Violin neck repairing, bonding and compressing clamp

Info

Publication number: CN211466765U
Application number: CN201921702285.8U
Authority: CN
Inventors: 邵小佳
Original assignee: Taixing Letai Musical Instrument Co ltd
Current assignee: Taixing Letai Musical Instrument Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-09-11
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a bonding compresses tightly fixture is restoreed to violin neck, which comprises an outer shell, both ends left side all is connected with the lead screw through the bearing rotation about the inner chamber of shell, the equal interference fit in both ends has the inner ring of bearing, two about the outer wall of lead screw the outer loop of bearing is fixed connection both ends left side about the inner chamber of shell respectively, the slide bar is installed along upper and lower direction in the inner chamber right side of shell, the upper surface of shell is extended on the top of lead screw and the handle is installed, the top left side spiro union of handle has the bolt, both ends spiro union respectively have first backup pad and second backup pad about the outer wall of lead screw, the front side screwed connection of shell has the apron. This violin neck is restoreed to bond and is compressed tightly fixture can realize compressing tightly the neck, produces the clearance when avoiding restoreing the bonding, makes the bonding more firm, and increase of service life has guaranteed the performance tone quality of violin, the violin neck bonding restoration of being convenient for.

Description

Violin neck repairing, bonding and compressing clamp

Technical Field

The utility model relates to a violin technical field specifically is a violin neck is restoreed bonding and is compressed tightly fixture.

Background

A violin is a stringed musical instrument. There are a total of four strings. The sound is produced by the friction of the strings and the bow. The musical instrument mainly comprises a back plate, side plates, a sound post, a musical instrument face, a musical instrument support, a string pulling plate, a musical instrument bridge, a fingerboard, a string axle box, a musical instrument neck, a string axle, a musical instrument head and the like. Fingerboard, neck, face and curb plate etc. all are made by timber, and the violin is in the manufacturing production process, and through the adhesive bonding installation together between the timber part, along with the influence of time lapse and sound vibration, the phenomenon of fracture appears between neck and fingerboard or the curb plate easily, in order to guarantee the normal use of violin, will use glue to carry out the adhesion restoration again. At present, in the bonding process, no equipment can compress tightly between two bonded parts, so that gaps exist in bonding, the bonding is not firm enough, the service life is short, and the timbre of a violin is influenced, therefore, a violin neck repairing and compressing clamp is designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a violin neck is restoreed bonding and is compressed tightly fixture to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a violin neck repairing, bonding and compressing clamp comprises a shell, wherein the left sides of the upper end and the lower end of an inner cavity of the shell are rotatably connected with a lead screw through a bearing, the upper end and the lower end of the outer wall of the lead screw are in interference fit with inner rings of the bearing, two outer rings of the bearing are fixedly connected to the left sides of the upper end and the lower end of the inner cavity of the shell respectively, a slide rod is installed on the right side of the inner cavity of the shell along the vertical direction, the top end of the lead screw extends out of the upper surface of the shell and is provided with a handle, the left side of the top end of the handle is screwed with a bolt, the upper end and the lower end of the outer wall of the lead screw are respectively screwed with a first supporting plate and a second supporting plate, a cover plate is connected with a screw on the front side of the shell, a first pressing plate is installed in, the slide rail is characterized in that a slide block is inserted in the left side of an inner cavity of the slide rail, circular grooves are formed in the center positions of the front side and the rear side of the slide block, springs and steel balls are respectively inserted in the inner cavity of the circular grooves from inside to outside, the inner cavity of the circular groove is extended out of the outer wall of each steel ball and is inserted in the inner cavity of the arc-shaped clamping groove, and a second pressing plate is installed at the bottom end of the slide.

Preferably, rubber pads are bonded to the bottom ends of the first pressing plate and the second pressing plate and the top end of the second supporting plate.

Preferably, the threads at the upper end and the lower end of the outer wall of the screw rod are positive and negative threads.

Preferably, the shape of the inner cavity of the slide way is in a shape of a convex character, the shape of the sliding block is in a shape of a T character, and the sliding block is in adaptive insertion connection with the slide way.

Preferably, a plurality of arc-shaped clamping grooves are arranged on the front side and the rear side of the inner wall of the slide way from left to right at intervals, and the distance between every two adjacent arc-shaped clamping grooves is 3 mm.

Preferably, the lower surfaces of the first pressing plate and the second pressing plate are on the same horizontal plane.

Preferably, the length of the steel ball extending out of the inner cavity of the circular groove is smaller than the radius of the steel ball.

Compared with the prior art, the beneficial effects of the utility model are that: this violin neck is restoreed bonding and is compressed tightly fixture, through the spring, the slider braking after the steel ball and the cooperation of arc draw-in groove can be to removing, thereby adjust the interval between first clamp plate and the second clamp plate, avoid first clamp plate and second clamp plate to touch the string when pressing on the fingerboard, make lead screw clockwise rotation through the handle, can make first backup pad and second backup pad move to the inboard simultaneously under the cooperation of lead screw and slide bar, thereby compress tightly the violin neck, produce the clearance when avoiding restoreing the bonding, it is more firm to make the bonding, prolonged service life, the performance tone quality of violin has been guaranteed, the violin neck bonding of being convenient for is restoreed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an assembly view of the present invention;

fig. 3 is a top cross-sectional view of the first support plate of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: 1. the device comprises a shell, 2, a screw rod, 3, a sliding rod, 4, a handle, 5, a bolt, 6, a first supporting plate, 7, a second supporting plate, 8, a cover plate, 9, a first pressing plate, 10, a slide way, 11, an arc-shaped clamping groove, 12, a sliding block, 13, a circular groove, 14, a spring, 15, a steel ball, 16, a second pressing plate, 17 and a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a violin neck repairing, bonding and compressing clamp comprises a shell 1, wherein the left sides of the upper end and the lower end of an inner cavity of the shell 1 are rotatably connected with a lead screw 2 through a bearing, the upper end and the lower end of the outer wall of the lead screw 2 are respectively provided with an inner ring of the bearing in interference fit, the outer rings of the two bearings are respectively fixedly connected with the left sides of the upper end and the lower end of the inner cavity of the shell 1, the right side of the inner cavity of the shell 1 is provided with a slide rod 3 along the vertical direction, a first support plate 6 and a second support plate 7 are limited through the slide rod 3 to ensure that the first support plate 6 and the second support plate 7 can vertically move, the top end of the lead screw 2 extends out of the upper surface of the shell 1 and is provided with a handle 4, the left side of the top end of the handle 4 is screwed with a bolt 5, when the bolt 5 rotates to be in contact with the upper surface of, the second supporting plate 7 is used for extruding the bottom end of a violin, a cover plate 8 is connected with a front side screw of the shell 1, a first pressing plate 9 is installed in the middle of the bottom end of the first supporting plate 6, the first pressing plate 9 and a second pressing plate 16 are the same in size, the violin fingerplate is extruded through the matching of the first pressing plate 9 and the second pressing plate 16, a slide way 10 is arranged on the left side of the first pressing plate 9 and positioned on the lower surface of the first supporting plate 6, arc-shaped clamping grooves 11 are formed in the front side and the rear side of the inner wall of the slide way 10 from left to right, the contact surface between each arc-shaped clamping groove 11 and each steel ball 15 is an arc-shaped curved surface, the depth of the inner cavity of each arc-shaped clamping groove 11 is gradually reduced from the center to the edge, the steel ball 15 can automatically move into the circular groove 13 under the driving of the sliding block 12 under the blocking of the arc-shaped clamping grooves 11, the sliding block 12 is inserted into the left side of the inner, spring 14 is rotating spring, and the elastic coefficient is 35N/CM, and spring 14 produces elastic deformation after receiving tensile or extrusion, resumes to initial condition after getting rid of external force, and spring 14 provides an outside elasticity for steel ball 15, can make steel ball 15 stably stop in arc draw-in groove 11, and the inner chamber that steel ball 15's outer wall extended circular slot 13 is pegged graft with the inner chamber of arc draw-in groove 11, and second clamp plate 16 is installed to the bottom of slider 12.

Preferably, rubber pads 17 are bonded to the bottom ends of the first pressing plate 9 and the second pressing plate 16 and the top end of the second supporting plate 7, and the rubber pads 17 have elasticity, so that the first pressing plate 9, the second pressing plate 16 and the second supporting plate 7 are prevented from being in rigid contact with the violin, and scratches, pressure sores and the like on the surface of the violin are prevented.

Preferably, the threads at the upper and lower ends of the outer wall of the screw rod 2 are positive and negative threads, and when the screw rod 2 rotates clockwise or counterclockwise, the rotational force of the threads on the outer wall of the screw rod 2 can drive the first support plate 6 and the second support plate 7 to simultaneously move inward or outward.

Preferably, the inner cavity of the slide way 10 is in a shape of a convex letter, the slide block 12 is in a shape of a T, and the slide block 12 is inserted into the slide way 10 in a matching manner, so that the slide block 12 is prevented from being separated from the slide way 10, and the stability of the second press plate 16 is further improved.

As preferred scheme, a plurality of arc draw-in groove 11 is arranged in the inner wall front and back both sides of slide 10 from a left side to right side clearance, and the interval between every two adjacent arc draw-in grooves 11 is 3mm, ensures that second clamp plate 16 can remove about with the distance that minimum unit is 3mm to be convenient for the interval adjustment between first clamp plate 9 and the second clamp plate 16, prevent that first clamp plate 9 and second clamp plate 16 from touching the string when compressing tightly the violin.

As the preferred scheme, the lower surfaces of the first pressing plate 9 and the second pressing plate 16 are on the same horizontal plane, so that the first pressing plate 9 and the second pressing plate 16 can be uniformly stressed, the pressing deviation is prevented from occurring when the violin is pressed, and the pressing quality is improved.

Preferably, the length of the steel ball 15 extending out of the inner cavity of the circular groove 13 is smaller than the radius of the steel ball 15, so that the area of the steel ball 15 is mostly ensured to be in the circular groove 13, and the circular groove 13 can determine the limit fixation of the steel ball 15.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

When the finger plate is used, the second pressing plate 16 is pushed leftwards or rightwards according to the position of a string on the finger plate, the sliding block 12 is enabled to slide leftwards or rightwards along the inner cavity of the sliding way 10, the steel ball 15 is driven by the sliding block 12 to move in the circular groove 13 and extrude the spring 14 under the resisting of the inner wall of the arc-shaped clamping groove 11, the second pressing plate 16 can freely move leftwards and rightwards, when the distance between the first pressing plate 9 and the second pressing plate 16 cannot touch the string, the spring 14 pushes the steel ball 15 to move outwards under the action of the self elasticity to be inserted into the arc-shaped clamping groove 11 at the corresponding position, the moved sliding block 12 is braked, at the moment, the lower surfaces of the first pressing plate 9 and the second pressing plate 16 are placed on the violin plate, the second supporting plate 7 is positioned at the lower end of a neck or a back plate, the handle 4 rotates clockwise, the lead screw 2 is enabled to rotate clockwise, the outer wall thread rotating force, until neck and fingerboard compress tightly, rotatory bolt 5 makes bolt 5 top at 1 upper surface of shell, and is fixed to handle 4, accomplishes the neck bonding and compresses tightly to when restoreing the violin, can compress tightly the restoration position, prevent to produce the clearance between neck and fingerboard or the curb plate, guarantee the bonding quality, effectively prolong the life of violin, more do benefit to violin neck and restore the use.

In the description of the present invention, it is to be understood that the terms "bottom", "one end", "middle", "other end", "upper", "top", "inner", "front", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated; unless otherwise expressly stated or limited, the terms "mounted," "interference fit," "fixed connection," "bonded," "opened," "plugged," "screwed," and the like are to be construed broadly, e.g., as fixed connections, as removable connections, or as an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a violin neck is restoreed to bond and is compressed tightly fixture, includes shell (1), its characterized in that: the lead screw is characterized in that the left sides of the upper end and the lower end of the inner cavity of the shell (1) are rotatably connected with a lead screw (2) through bearings, the upper end and the lower end of the outer wall of the lead screw (2) are in interference fit with inner rings of the bearings, the outer rings of the two bearings are fixedly connected to the left sides of the upper end and the lower end of the inner cavity of the shell (1) respectively, a slide rod (3) is installed on the right side of the inner cavity of the shell (1) along the up-down direction, the top end of the lead screw (2) extends out of the upper surface of the shell (1) and is provided with a handle (4), the left side of the top end of the handle (4) is screwed with a bolt (5), the upper end and the lower end of the outer wall of the lead screw (2) are respectively screwed with a first supporting plate (6) and a second supporting plate (7), the front side of the shell (1) is connected with a cover plate (8) through a screw, arc-shaped clamping grooves (11) are formed in the front side and the rear side of the inner wall of the slide way (10) from left to right, a sliding block (12) is inserted into the left side of an inner cavity of the slide way (10), circular grooves (13) are formed in the center positions of the front side and the rear side of the sliding block (12), springs (14) and steel balls (15) are inserted into the inner cavity of the circular grooves (13) from inside to outside respectively, the inner cavity of the circular grooves (13) extending out of the outer wall of the steel balls (15) is inserted into the inner cavity of the arc-shaped clamping grooves (11), and a second pressing plate (16) is installed at the bottom.

2. The violin neck repairing, bonding and compressing clamp as claimed in claim 1, wherein: rubber pads (17) are bonded to the bottom ends of the first pressing plate (9) and the second pressing plate (16) and the top end of the second supporting plate (7).

3. The violin neck repairing, bonding and compressing clamp as claimed in claim 1, wherein: the threads at the upper end and the lower end of the outer wall of the lead screw (2) are positive and negative threads.

4. The violin neck repairing, bonding and compressing clamp as claimed in claim 1, wherein: the inner cavity shape of slide (10) is "protruding" font, the shape of slider (12) is "T" font, and slider (12) and slide (10) looks adaptation grafting.

5. The violin neck repairing, bonding and compressing clamp as claimed in claim 1, wherein: a plurality of arc draw-in groove (11) from a left side to right side interval arrangement both sides around the inner wall of slide (10), and the interval between per two adjacent arc draw-in groove (11) is 3 mm.

6. The violin neck repairing, bonding and compressing clamp as claimed in claim 1, wherein: the lower surfaces of the first pressing plate (9) and the second pressing plate (16) are on the same horizontal plane.

7. The violin neck repairing, bonding and compressing clamp as claimed in claim 1, wherein: the length of the steel ball (15) extending out of the inner cavity of the circular groove (13) is smaller than the radius of the steel ball.