CN213034470U - Adjustable mounting fixture of stiffening plate - Google Patents

Abstract

The utility model provides an adjustable mounting fixture of stiffening plate relates to mounting fixture technical field, solved current stiffening plate through anchor clamps fixed back, the stiffening plate does not possess certain upper and lower, remove the skew distance about, it can't satisfy the part processing of stiffening plate or the measuring mode or reciprocate the skew or remove the demand of removing the skew distance about or, it only possesses the nonadjustable fixed function in position, its can't satisfy the demand of stiffening plate, when leading to carrying out this part processing or measuring mode, the stiffening plate very easily takes place the damage. The utility model provides an adjustable mounting fixture of stiffening plate, includes unable adjustment base, slidable mounting has two sets of adjustable fixed establishment on the unable adjustment base. Through the cooperation of the reset spring A and the circular limiting column A with the circular limiting hole A or the cooperation of the reset spring B and the circular limiting column B with the circular limiting hole B, the reinforcing plate is fixed and then moves for a certain offset distance or moves up or down, so that the requirement is met, and the reinforcing plate is prevented from being damaged.

Description

Adjustable mounting fixture of stiffening plate

Technical Field

The utility model belongs to the technical field of mounting fixture, more specifically say, in particular to adjustable mounting fixture of stiffening plate.

Background

The reinforcing plate is called a reinforcing plate, a supporting plate, a reinforcing plate and a reinforcing rib; the reinforcing plate is mainly used for buildings, petroleum pipelines, machine tools, electronic products and the like; the reinforcing plate is widely used in an FPC (flexible printed circuit) flexible circuit board in an electronic product, mainly solves the flexibility of the flexible circuit board, improves the strength of a plug-in part and facilitates the integral assembly of the product.

The prior reinforcing plate fixing clamp has the following defects in practical application: the stiffening plate does not have certain upper and lower, the left right movement offset distance through anchor clamps fixed back, and what its can't satisfy the stiffening plate during partial processing or the detection mode or reciprocate the offset or the left right movement offset distance's demand, it only possesses the nonadjustable fixed function in position, and its demand that can't satisfy the stiffening plate leads to when carrying out this partial processing or detection mode, and the stiffening plate is very easy to take place the damage.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and an adjustable fixing clamp for a reinforcing plate is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an adjustable mounting fixture of stiffening plate to solve current stiffening plate through anchor clamps fixed back, the stiffening plate does not possess certain upper and lower, remove the skew distance about, when its part processing or the detection mode that can't satisfy the stiffening plate or reciprocate the skew or remove the demand of removing the skew distance about, it only possesses the nonadjustable fixed function in position, its demand that can't satisfy the stiffening plate, when leading to carrying out this part processing or detection mode, the stiffening plate very easily takes place the damage problem.

The utility model discloses adjustable mounting fixture's of stiffening plate purpose and efficiency are reached by following concrete technological means:

a stiffening plate adjustable fixing clamp comprises a fixing base, wherein two groups of adjustable fixing mechanisms are slidably mounted on the fixing base and are in transmission connection through a bidirectional screw; the bidirectional screw comprises butterfly heads, and the left end and the right end of the bidirectional screw are provided with one butterfly head; the adjustable fixing mechanism consists of a sliding mechanism, a rotary type clamp, a horizontal reciprocating type clamp, a longitudinal reciprocating type clamp A and a longitudinal reciprocating type clamp B; rotary type anchor clamps are including square piece, the spacing groove, locking screw, concave type board A, fastening screw A, the spliced pole, T type pivot, a spacing groove has been seted up to square piece right-hand member face, square piece top is personally submitted bilateral symmetry form and is had two locking screw with thread connection altogether, square piece left end face is through concave type board A of two spliced pole fixedly connected with, and concave type board A top face has a fastening screw A for concave end threaded connection, square piece bottom face central point is provided with a T type pivot, and T type pivot rotates to be connected in T type shaft inslot.

Furthermore, the fixed base comprises a rectangular base, isosceles trapezoid chutes and mounting plates, wherein one isosceles trapezoid chute is formed in the top end face of the rectangular base, one mounting plate is arranged at the edge parts of the left side and the right side of the front end face and the rear end face of the rectangular base, and mounting hole positions are formed in the mounting plates; the sliding mechanism comprises a square block, a thread transmission through hole, an isosceles trapezoid sliding block and a T-shaped shaft groove, wherein the isosceles trapezoid sliding block is arranged on the bottom end face of the square block, the thread transmission through hole is jointly formed between the left end face and the right end face of the square block, the T-shaped shaft groove is formed in the axis position of the top end face of the square block, and the isosceles trapezoid sliding block is slidably connected in the isosceles trapezoid sliding groove.

Further, the rotary type anchor clamps are including square extension board A, reset spring A, the spacing post A of circular shape, and square piece front end face downside is bilateral symmetry form and is provided with two square extension board A altogether, and two square extension board A top face central point all are provided with a spacing post A of circular shape, and two circular spacing post A peripheries all are equipped with a reset spring A, and reset spring A bottom and square extension board A top face are fixed and are connected.

Further, the rotary type anchor clamps are including square extension board B, reset spring B, the spacing post B of circular shape, and square piece rear end face up side is bilateral symmetry form and is provided with two square extension board B altogether, and two square extension board B bottom face central point departments all are provided with a spacing post B of circular shape, and two circular spacing post B peripheries all overlap and are equipped with a reset spring B, and reset spring B top and square extension board B bottom face are fixed and are connected.

Further, reciprocating type anchor clamps of level are including concave type board B, fastening screw B, slip post, reset spring C, and concave type board B left end face central point is provided with a slip post, and concave type board B left end face is symmetry form around being and is provided with two reset spring C altogether, and concave type board B top face has a fastening screw B for indent end threaded connection, and two reset spring C are connected with square piece right-hand member face is fixed, and under the ordinary extension state of two reset spring C, slip post sliding connection is at spacing inslot.

Further, vertical reciprocating type anchor clamps A is including concave template C, fastening screw C, square extension board C, circular spacing hole A, concave template C top face has a fastening screw C for concave end position threaded connection, the adjacent top position of concave template C rear end face is bilateral symmetry form and is provided with two square extension boards C altogether, a circular spacing hole A has all been seted up to two square extension board C top face central points, two concave template C bottom faces are connected with reset spring A top stationary phase, circular spacing post A sliding connection is in circular spacing hole A.

Further, vertical reciprocating type anchor clamps B is including concave template D, fastening screw D, square extension board D, circular spacing hole B, concave template D top face has a fastening screw D for indent end position threaded connection, the adjacent bottom face position of terminal surface is bilateral symmetry form and is provided with two square extension boards D before concave template D, a circular spacing hole B of department has all been seted up to two square extension board D top face central points, two square extension board D top faces are connected with reset spring B bottom stationary phase, circular spacing post B sliding connection is in circular spacing hole B.

Compared with the prior art, the utility model discloses following beneficial effect has:

when the reinforcing plate is required to be ensured not to generate vertical and horizontal movement offset after being fixed, the two locking screws can be firstly unscrewed to ensure that the two locking screws do not limit the rotary type clamp any more, then the rotary type clamp can be rotated through the matching of the T-shaped rotating shaft and the T-shaped shaft groove to ensure that the positions of the A end positions of the concave plates in the two groups of adjustable fixing mechanisms correspond to each other, and then the two locking screws are screwed tightly to limit the rotary type clamp again; when the reinforcing plate is applied, two ends of the reinforcing plate are respectively placed in the concave ends of the concave plate A and are locked by the fastening screws A, so that the reinforcing plate is prevented from moving up and down and left and right after being fixed; when a certain left-right moving offset distance is needed after the reinforcing plate is fixed, repeating the operation to enable the horizontal reciprocating type clamps in the two groups of adjustable fixing mechanisms to be corresponding in position; when the reinforcing plate is used, two ends of the reinforcing plate are respectively placed in the concave ends of the concave plates B and are locked through the fastening screws B, and the reinforcing plate is fixed by a certain left-right moving offset distance through the matching of the reset springs C and the sliding columns with the limiting grooves, so that the requirement is met, and the reinforcing plate is prevented from being damaged; when the reinforcing plate needs to move up or down for a certain offset distance after being fixed, the operations are repeated, so that the longitudinal reciprocating type clamp A or the longitudinal reciprocating type clamp B in the two groups of adjustable fixing mechanisms correspond to each other; during the application, the stiffening plate both ends are placed respectively in concave type board C's indent end or concave type board D's indent end to through fastening screw C or, fastening screw D locking, through reset spring A and circular spacing post A with circular spacing hole A cooperation or reset spring B and circular spacing post B with circular spacing hole B cooperation, make the stiffening plate have certain or move about up or down after fixed and move the skew distance, in order to satisfy the demand, avoid the stiffening plate to take place to damage.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of the present invention in a disassembled state.

Fig. 2 is a schematic axial view of the present invention.

Fig. 3 is a schematic structural view of the adjustable fixing mechanism of the present invention in a disassembled state.

Fig. 4 is a schematic view of the internal sectional structure of the sliding mechanism of the present invention.

Fig. 5 is a schematic axial view of the rotary clamp of the present invention.

Fig. 6 is a schematic view of the bottom end of the rotary fixture of the present invention.

Fig. 7 is a schematic axial view of the horizontal reciprocating clamp of the present invention.

Fig. 8 is a schematic view of the a-axis structure of the vertical reciprocating jig of the present invention.

Fig. 9 is a schematic view of the structure of the vertical reciprocating jig of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a fixed base; 101. a rectangular base; 102. an isosceles trapezoid chute; 103. mounting a plate; 2. a bidirectional screw; 201. a butterfly head; 3. an adjustable fixing mechanism; 301. a sliding mechanism; 30101. a square block; 30102. a threaded drive through hole; 30103. an isosceles trapezoid slider; 30104. a T-shaped shaft groove; 302. a rotary clamp; 30201. a square block; 30202. a limiting groove; 30203. locking screws; 30204. a concave plate A; 30205. a fastening screw A; 30206. connecting columns; 30207. a square extension plate A; 30208. a return spring A; 30209. a circular limiting column A; 30210. a square extension plate B; 30211. a return spring B; 30212. a circular limiting column B; 30213. a T-shaped rotating shaft; 303. a horizontally reciprocating clamp; 30301. a concave plate B; 30302. a fastening screw B; 30303. a sliding post; 30304. a return spring C; 304. a longitudinally reciprocating clamp A; 30401. a concave plate C; 30402. a fastening screw C; 30403. a square extension plate C; 30404. a circular limiting hole A; 305. a longitudinally reciprocating clamp B; 30501. a concave plate D; 30502. a fastening screw D; 30503. a square extension plate D; 30504. and a circular limiting hole B.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 9:

the utility model provides an adjustable fixing clamp for a reinforcing plate, which comprises a fixing base 1, wherein two groups of adjustable fixing mechanisms 3 are arranged on the fixing base 1 in a sliding way, and the two groups of adjustable fixing mechanisms 3 are connected with each other through a bidirectional screw 2 in a transmission way; the fixed base 1 comprises a rectangular base 101, isosceles trapezoid sliding grooves 102 and mounting plates 103, wherein the top end face of the rectangular base 101 is provided with one isosceles trapezoid sliding groove 102, the edge parts of the left side and the right side of the front end face and the rear end face of the rectangular base 101 are respectively provided with one mounting plate 103, and the mounting plates 103 are provided with mounting hole sites; the sliding mechanism 301 comprises a square block 30101, a threaded transmission through hole 30102, an isosceles trapezoid sliding block 30103 and a T-shaped shaft slot 30104, wherein the bottom end face of the square block 30101 is provided with the isosceles trapezoid sliding block 30103, the left end face and the right end face of the square block 30101 are jointly provided with the threaded transmission through hole 30102, the axis part of the top end face of the square block 30101 is provided with the T-shaped shaft slot 30104, and the isosceles trapezoid sliding block 30103 is slidably connected in the isosceles trapezoid sliding slot 102; the bidirectional screw 2 comprises a butterfly head 201, and the left end and the right end of the bidirectional screw 2 are both provided with the butterfly head 201; the adjustable fixing mechanism 3 is composed of a sliding mechanism 301, a rotary type clamp 302, a horizontal reciprocating clamp 303, a longitudinal reciprocating clamp A304 and a longitudinal reciprocating clamp B305; the rotary clamp 302 comprises a square block 30201, a limiting groove 30202, a locking screw 30203, a concave board a30204, a fastening screw a30205, a connecting column 30206, and a T-shaped rotating shaft 30213, wherein the right end surface of the square block 30201 is provided with a limiting groove 30202, the top end of the square block 30201 is bilaterally symmetrical and is in threaded connection with two locking screws 30203, the left end surface of the square block 30201 is fixedly connected with a concave board a30204 through two connecting columns 30206, the top end surface of the concave board a30204 is in threaded connection with a fastening screw a30205 relative to the concave end, the center of the bottom end surface of the square block 30201 is provided with a T-shaped rotating shaft 30213, and the T-shaped rotating shaft 30213 is rotatably connected in the T-shaped shaft.

The rotary clamp 302 comprises a square extension plate A30207, a return spring A30208 and a round limiting column A30209, two square extension plates A30207 are symmetrically arranged on the lower side of the front end face of the square block 30201, the center of the top end face of each of the two square extension plates A30207 is provided with a round limiting column A30209, the periphery of each of the two round limiting columns A30209 is provided with a return spring A30208 in a sleeved manner, and the bottom end of the return spring A30208 is fixedly connected with the top end face of the square extension plate A30207.

Wherein, rotary type anchor clamps 302 are including square extension board B30210, reset spring B30211, the spacing post B30212 of circular shape, square piece 30201 rear end up side is bilateral symmetry and describes and be provided with two square extension boards B30210 altogether, two square extension board B30210 bottom end face central point all are provided with a spacing post B30212 of circular shape, two circular spacing post B30212 peripheral all overlap and are equipped with a reset spring B30211, and reset spring B30211 top is connected with square extension board B30210 bottom end face is fixed.

The horizontal reciprocating type clamp 303 comprises a concave plate B30301, a fastening screw B30302, a sliding column 30303 and a return spring C30304, wherein the center of the left end face of the concave plate B30301 is provided with the sliding column 30303, the left end face of the concave plate B30301 is provided with the two return springs C30304 in a front-back symmetrical manner, the top end face of the concave plate B30301 is in threaded connection with the fastening screw B30302 relative to the inner concave end, the two return springs C30304 are fixedly connected with the right end face of the square block 30201, and the sliding column 30303 is in sliding connection in the limiting groove 30202 in the ordinary extension state of the two return springs C30304.

The longitudinal reciprocating type clamp A304 comprises a concave plate C30401, a fastening screw C30402, a square extension plate C30403 and a circular limiting hole A30404, wherein the top end face of the concave plate C30401 is in threaded connection with the fastening screw C30402 relative to the concave end part, two square extension plates C30403 are arranged on the adjacent top end parts of the rear end face of the concave plate C30401 in a bilateral symmetry manner, the center parts of the top end faces of the two square extension plates C30403 are respectively provided with the circular limiting hole A30404, the bottom end faces of the two concave plates C30401 are fixedly connected with the top end of a return spring A30208, and a circular limiting column A30209 is connected in the circular limiting hole A30404 in a sliding manner.

Wherein, vertical reciprocating type anchor clamps B305 is including concave type board D30501, fastening screw D30502, square extension board D30503, circular spacing hole B30504, concave type board D30501 top face has a fastening screw D30502 for indent end position threaded connection, the adjacent bottom face position of terminal surface is bilateral symmetry form and is provided with two square extension boards D30503 altogether before concave type board D30501, a circular spacing hole B30504 of department has all been seted up to two square extension boards D30503 top end face central part, two square extension boards D30503 top end faces are connected with reset spring B30211 bottom stationary phase, circular spacing post B30212 sliding connection is in circular spacing hole B30504.

The specific use mode and function of the embodiment are as follows:

the utility model discloses can be according to the processing or the detection demand of stiffening plate, the corresponding mounting fixture of adjustable conversion:

the two-way screw 2 is matched with the thread transmission through holes 30102 in the two groups of adjustable fixing mechanisms 3, and the two groups of adjustable fixing mechanisms 3 can be synchronously driven along the isosceles trapezoid sliding groove 102 to move outwards or inwards simultaneously so as to meet the clamping requirement of the reinforcing plate;

when it is required to ensure that the reinforcing plate is not deviated from the vertical and horizontal directions after being fixed, the two locking screws 30203 can be unscrewed first to ensure that the two locking screws 30203 do not limit the rotary type clamp 302 any more, at this time, the rotary type clamp 302 can be rotated through the matching of the T-shaped rotating shaft 30213 and the T-shaped shaft slot 30104 to ensure that the end positions of the concave plates a30204 in the two groups of adjustable fixing mechanisms 3 correspond to each other, and then the two locking screws 30203 are screwed to limit the rotary type clamp 302 again; when the reinforcing plate is used, two ends of the reinforcing plate are respectively placed in the concave ends of the concave plates A30204 and are locked by the fastening screws A30205, so that the reinforcing plate is prevented from shifting up and down, left and right after being fixed;

when a certain left-right moving offset distance is needed after the reinforcing plate is fixed, repeating the operation, so that the positions of the horizontal reciprocating clamps 303 in the two groups of adjustable fixing mechanisms 3 correspond to each other; when the reinforcing plate is used, two ends of the reinforcing plate are respectively placed in the concave end of the concave plate B30301, the reinforcing plate is locked by the fastening screw B30302, and the reinforcing plate is fixed by a certain left-right moving offset distance through the matching of the reset spring C30304 and the sliding column 30303 with the limiting groove 30202 so as to meet the requirement and avoid the reinforcing plate from being damaged;

when the reinforcing plate needs to move up or down for a certain offset distance after being fixed, the operations are repeated, so that the positions of the longitudinal reciprocating clamp A304 or the longitudinal reciprocating clamp B305 in the two groups of adjustable fixing mechanisms 3 correspond to each other; when the reinforcing plate is used, two ends of the reinforcing plate are respectively placed in the concave end of the concave plate C30401 or the concave end of the concave plate D30501 and are locked by the fastening screw C30402 or the fastening screw D30502, and the reinforcing plate is fixed by a certain moving offset distance or moves up or down to meet the requirement through the matching of the return spring A30208 and the circular limiting column A30209 with the circular limiting hole A30404 or the matching of the return spring B30211 and the circular limiting column B30212 with the circular limiting hole B30504.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. The utility model provides an adjustable mounting fixture of stiffening plate which characterized in that: the adjustable fixing device comprises a fixing base (1), wherein two groups of adjustable fixing mechanisms (3) are slidably mounted on the fixing base (1), and the two groups of adjustable fixing mechanisms (3) are in transmission connection through a bidirectional screw (2); the bidirectional screw (2) comprises butterfly heads (201), and the left end and the right end of the bidirectional screw (2) are respectively provided with one butterfly head (201); the adjustable fixing mechanism (3) consists of a sliding mechanism (301), a rotary clamp (302), a horizontal reciprocating clamp (303), a longitudinal reciprocating clamp A (304) and a longitudinal reciprocating clamp B (305); the rotary type clamp (302) comprises a square block (30201), a limiting groove (30202), a locking screw (30203), a concave plate A (30204), a fastening screw A (30205), a connecting column (30206), and a T-shaped rotating shaft (30213), wherein one limiting groove (30202) is formed in the right end face of the square block (30201), the top end face of the square block (30201) is in bilateral symmetry and is in threaded connection with two locking screws (30203), the left end face of the square block (30201) is fixedly connected with a concave plate A (30204) through two connecting columns (30206), the top end face of the concave plate A (30204) is in threaded connection with one fastening screw A (30205) relative to the concave end, the central part of the bottom end face of the square block (30201) is provided with a T-shaped rotating shaft (30213), and the T-shaped rotating shaft (30213) is rotatably connected in the T-shaped shaft.

2. The adjustable stiffening plate mounting bracket of claim 1 wherein: the fixed base (1) comprises a rectangular base (101), isosceles trapezoid sliding grooves (102) and mounting plates (103), wherein one isosceles trapezoid sliding groove (102) is formed in the top end face of the rectangular base (101), the mounting plates (103) are arranged on the edge portions of the left side and the right side of the front end face and the rear end face of the rectangular base (101), and mounting hole positions are formed in the mounting plates (103); the sliding mechanism (301) comprises a square block (30101), a threaded transmission through hole (30102), an isosceles trapezoid sliding block (30103) and a T-shaped shaft groove (30104), wherein the bottom end face of the square block (30101) is provided with the isosceles trapezoid sliding block (30103), the left end face and the right end face of the square block (30101) are jointly provided with the threaded transmission through hole (30102), the axle center part of the top end face of the square block (30101) is provided with the T-shaped shaft groove (30104), and the isosceles trapezoid sliding block (30103) is slidably connected in the isosceles trapezoid sliding groove (102).

3. The adjustable stiffening plate mounting bracket of claim 1 wherein: rotary type anchor clamps (302) are including square extension board A (30207), reset spring A (30208), circular spacing post A (30209), square piece (30201) preceding terminal surface downside is bilateral symmetry form and is provided with two square extension boards A (30207) altogether, two square extension board A (30207) top end face central point all are provided with a circular spacing post A (30209), two circular spacing post A (30209) periphery all overlap and are equipped with a reset spring A (30208), and reset spring A (30208) bottom and square extension board A (30207) top end face fixed connection.

4. The adjustable stiffening plate mounting bracket of claim 1 wherein: rotary type anchor clamps (302) are including square extension board B (30210), reset spring B (30211), circular spacing post B (30212), square piece (30201) rear end up side is bilateral symmetry form and is provided with two square extension boards B (30210) altogether, two square extension board B (30210) bottom face central point all are provided with a circular spacing post B (30212), two circular spacing post B (30212) periphery all overlap and are equipped with a reset spring B (30211), and reset spring B (30211) top is connected with square extension board B (30210) bottom face is fixed.

5. The adjustable stiffening plate mounting bracket of claim 1 wherein: the horizontal reciprocating type clamp (303) comprises a concave plate B (30301), a fastening screw B (30302), a sliding column (30303) and a return spring C (30304), wherein the center of the left end face of the concave plate B (30301) is provided with the sliding column (30303), the left end face of the concave plate B (30301) is provided with the two return springs C (30304) in a front-back symmetrical manner, the top end face of the concave plate B (30301) is in threaded connection with the fastening screw B (30302) relative to the concave end, the two return springs C (30304) are fixedly connected with the right end face of the square block (30201), and the sliding column (30303) is in a limiting groove (30202) in a common extending state of the two return springs C (30304).

6. The adjustable stiffening plate mounting bracket of claim 1 wherein: the longitudinal reciprocating type clamp A (304) comprises a concave plate C (30401), a fastening screw C (30402), a square extension plate C (30403) and a circular limiting hole A (30404), wherein the top end face of the concave plate C (30401) is in threaded connection with the fastening screw C (30402) relative to the concave end part, two square extension plates C (30403) are arranged on the adjacent top end parts of the rear end face of the concave plate C (30401) in a bilateral symmetry mode, the center parts of the top end faces of the two square extension plates C (30403) are respectively provided with the circular limiting hole A (30404), the bottom end faces of the two concave plates C (30401) are fixedly connected with the top end of a return spring A (30208), and a circular limiting column A (30209) is connected in the circular limiting hole A (30404) in a sliding mode.

7. The adjustable stiffening plate mounting bracket of claim 1 wherein: the longitudinal reciprocating type clamp B (305) comprises a concave plate D (30501), a fastening screw D (30502), a square extension plate D (30503) and a circular limiting hole B (30504), wherein the top end face of the concave plate D (30501) is in threaded connection with the fastening screw D (30502) relative to the concave end part, two square extension plates D (30503) are arranged on the positions, adjacent to the bottom end face, of the front end face of the concave plate D (30501) in a bilateral symmetry mode, a circular limiting hole B (30504) is formed in the center part of the top end face of the two square extension plates D (30503), the top end faces of the two square extension plates D (30503) are fixedly connected with the bottom end of a reset spring B (30211), and a circular limiting column B (30212) is connected in the circular limiting hole B (30504) in a sliding mode.

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