CN217132424U

CN217132424U - Adjustable axial extraction test device for batch bone screws

Info

Publication number: CN217132424U
Application number: CN202220642106.1U
Authority: CN
Inventors: 崔林静
Original assignee: Hexi District Tianjin Center For Disease Control And Prevention
Current assignee: Hexi District Tianjin Center For Disease Control And Prevention
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-08-05
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses a test device is extracted to axial with adjustable batch bone screw, including fixed material piece device, back-and-forth movement device, controlling mobile device, fixed material piece device is provided with fixed plate and first bolt, and back-and-forth movement device is provided with first slider and second bolt, and fixed material piece device is fixed mutually with back-and-forth movement device through first bolt on the fixed plate, and back-and-forth movement device is fixed with controlling mobile device through the second bolt on the first slider, the utility model discloses simple structure, first cylinder slide bar can bear radial force, and first trapezoidal lead screw has self-locking function with the trapezoidal lead screw of second, can bear axial force, through the fixed not material piece of equidimension of fixed material piece device, rethread back-and-forth movement device, controlling mobile device carries out the material piece around the regulation to shorten test time, The test result is efficiently obtained, three-dimensional movement is realized, and the axial pull-out test of a plurality of screws is rapidly completed.

Description

Adjustable axial extraction test device for batch bone screws

Technical Field

The utility model relates to a pull out force testing arrangement technical field specifically indicates a test device is extracted to axial with adjustable batch bone screw.

Background

Traditional screw axial is pulled out test device, thereby generally is the fixed material piece of bolt fastening clamp plate, thereby needs manual lax bolt after a screw is pulled out, is 4 bolts under the general condition, and every clamp plate is fixed with 2 pieces of bolt lock, and the material piece is fastened with controlling 2 clamp plates, and manual promotion material piece is to suitable position after, reuse screwdriver locking bolt, and whole process is loaded down with trivial details and consumes a large amount of time. The movement based on the stroke direction of the test equipment on the market at present is generally only fixed, namely up and down or rotation, namely in the axial extraction test, a device applying extraction force can only move up and down, so that in the process of completing the axial extraction test of a plurality of screws, the position of a fixed block needs to be manually and continuously adjusted, and the fixed block is fixed by using bolts, so that the labor is wasted, and the consumed time is long.

The chinese utility model with publication number CN213364098U discloses a device for testing axial pullout force of an interface screw, which comprises a test block, an interface screw pullout rod and a test block fixing base; a straight-through hole with the aperture slightly smaller than the maximum screw diameter of the interface screw is arranged in the test block; the diameter of the screw is the outer diameter of the protruding position of the peripheral surface of the interface screw; the interface screw drawing rod comprises an A section, a B section and a C section which are sequentially arranged; the sections A and B are shaped and sized to be inserted into the hollow portion of the interface screw; the sum of the lengths of the sections A and B is greater than the length of the through hole; the section C is in a shape and size which can freely move in the through hole and cannot move in the hollow part of the interface screw; the test block fixing base is used for fixing the test block on a loading structure base of the tensile testing machine, however, the device cannot fix materials with different sizes and cannot adjust the positions of the materials in a front-back and left-right mode.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, provide one kind can fix not equidimension material and carry out the adjustable axial extraction test device of batch bone screw of position control all around to the material.

The purpose of the utility model is realized through the following technical scheme:

the adjustable axial pull-out test device for the batch bone screws comprises a fixed material block device, a front-back moving device and a left-right moving device, wherein the fixed material block device is provided with a fixed plate and a first bolt, the front-back moving device is provided with a first sliding block and a second bolt, the fixed material block device is fixed with the front-back moving device through the first bolt on the fixed plate, and the front-back moving device is fixed with the left-right moving device through the second bolt on the first sliding block.

Further, the fixed material block device comprises a fixed block, a pressing plate, a cylindrical guide rail and a cylindrical sliding block, the fixed block is installed on the fixed plate and is provided with the cylindrical guide rail, the cylindrical sliding block penetrates through the fixed block and the cylindrical guide rail, and one end of the cylindrical sliding block is connected with the pressing plate.

Furthermore, the material block fixing device further comprises a fastening handle and a half-thread bolt, the fastening handle is installed on one side of the cylindrical guide rail, and the fastening handle is connected with the cylindrical guide rail through the half-thread bolt.

Furthermore, the material block fixing device further comprises a first trapezoidal lead screw and a knob, the first trapezoidal lead screw penetrates through the fixing plate, one end of the first trapezoidal lead screw is connected with the fixing block, and the other end of the first trapezoidal lead screw is connected with the knob.

Further, the knob is a triangular knob, a pentagonal knob or a hexagonal knob.

Furthermore, the back-and-forth moving device comprises a first cylindrical slide rod, a second trapezoidal lead screw and a first hand wheel, two ends of the first cylindrical slide rod are embedded into the first sliding block, the first hand wheel is installed at one end of the back-and-forth moving device, and one end of the second trapezoidal lead screw penetrates through the first sliding block to be connected with the first hand wheel.

Furthermore, the left-right moving device comprises a second sliding block, a second cylindrical sliding rod, a third trapezoidal lead screw and a second hand wheel, two ends of the second cylindrical sliding rod are embedded into the second sliding block, the second hand wheel is installed at one end of the left-right moving device, and one end of the third trapezoidal lead screw penetrates through the second sliding block to be connected with the second hand wheel.

Furthermore, the first sliding block is provided with a groove, a convex block is arranged on the inner side of the groove, the convex block is provided with a screw nut hole, and the second trapezoidal screw is connected with the screw nut hole in a matched mode.

Further, the pressing plate is in an inverted L shape.

Furthermore, the convex block is cylindrical, and the height of the convex block is less than or equal to the depth of the groove.

Compared with the prior art, the utility model following advantage and beneficial effect have:

the utility model discloses simple structure, first cylinder slide bar can bear radial force, and first trapezoidal lead screw has self-locking function with the trapezoidal lead screw of second, can bear the axial force, can be with many screwable screw in material pieces, through the material piece of the fixed equidimension not of fixed material piece device, rethread back-and-forth movement means, remove the mobile device and carry out all around to the material piece and adjust to shorten test time, high-efficient obtaining test result, realize three-dimensional removal, accomplish many screw axial fast and extract the experiment.

Drawings

FIG. 1 is a perspective view of an adjustable axial pull-out test apparatus for batch bone screws;

FIG. 2 is a front view of an adjustable axial pull out test apparatus for batch bone screws;

FIG. 3 is a perspective view of a fixed material block apparatus;

FIG. 4 is a perspective view of the back-and-forth moving device;

FIG. 5 is a schematic view of a first slider structure;

FIG. 6 is a perspective view of the side-to-side movement apparatus;

the device comprises a tension load device 1, a pressure plate 2, a material block 3, a cylindrical guide rail 4, a half-thread bolt 5, a fastening handle 6, a cylindrical sliding block 7, a fixing block 8, a fixing plate 9, a knob 10, a front-and-back moving device 11, a left-and-right moving device 12, a material block fixing device 13, a bump 14, a groove 15, a screw nut hole 16, a first sliding block 111, a first cylindrical sliding rod 112, a second trapezoidal screw 113, a first hand wheel 114, a second hand wheel 121, a second sliding block 122, a second cylindrical sliding rod 123, a third trapezoidal screw 124, a second hand wheel 131, a first trapezoidal screw and a first bolt 132.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It is to be understood that the terms "comprises," "comprising," and "having" and any variations thereof in the description and claims of the invention and the above-described drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. In the claims, the description and the drawings of the present application, relational terms such as "first" and "second" and the like may be used solely to distinguish one entity/action/object from another entity/action/object without necessarily requiring or implying any actual such relationship or order between such entities/actions/objects.

As shown in fig. 1, 3 and 4, an adjustable axial pull-out test device for a batch bone screw comprises a fixed material block device 13, a front-back moving device 11 and a left-right moving device 12, wherein the fixed material block device 13 is provided with a fixed plate 9 and a first bolt 132, the front-back moving device 11 is provided with a first slider 111 and a second bolt (not shown in the figure), the fixed material block device 13 is fixed with the front-back moving device 11 through the first bolt 132 on the fixed plate 9, the bolt connection mode is convenient to detach, and the front-back moving device 11 is fixed with the left-right moving device 12 through the second bolt on the first slider 111.

The fixed material block device 13 comprises a fixed block 8, a pressing plate 2, a cylindrical guide rail 4 and a cylindrical sliding block 7, the fixed block 8 is installed on a fixed plate 9, the fixed block 8 is provided with the cylindrical guide rail 4, the cylindrical sliding block 7 penetrates through the fixed block 8 and the cylindrical guide rail 4, one end of the cylindrical sliding block 7 is connected with the pressing plate 2, the fixed material block device 13 further comprises a fastening handle 6 and a half-thread bolt 5, the fastening handle 6 is installed on one side of the cylindrical guide rail 4, the fastening handle 6 is connected with the cylindrical guide rail 4 through the half-thread bolt 5, the pressing plate 2 compresses the material block 3, the cylindrical guide rail 4, the cylindrical sliding block 7 and the fastening handle 6 are used for adjusting the left-right distance of the pressing plate 2, the cylindrical sliding block 7 moves left and right in the cylindrical guide rail 4, the distance between the press plates 2 is adjusted according to the width of the material block 3, and the gap of the cylindrical guide rail 4 can be reduced by rotating the fastening handle 6, so that the cylindrical sliding block 7 is locked.

As shown in fig. 2 and 3, the material block fixing device 13 further includes a first trapezoidal lead screw 131 and a knob 10, the first trapezoidal lead screw 131 penetrates through the fixing plate 9, one end of the first trapezoidal lead screw 131 is connected to the fixing block 8, the other end of the first trapezoidal lead screw 131 is connected to the knob 10, the first trapezoidal lead screw 131 has a self-locking function and bears an axial force, the knob 10 is a triangular knob, a pentagonal knob or a hexagonal knob, the type of the knob 10 is not limited to several corners, the circular knob can also achieve a locking effect, the first trapezoidal lead screw 131 is driven to rotate by rotating the knob 10, so that the cylindrical guide rail 4 moves up and down, and finally the pressing plate 2 moves up and down, thereby the pressing plate 2 can be adjusted in height according to the material block 3 to move up and down.

As shown in fig. 4, the forward-backward moving device 11 includes a first slider 111, a first cylindrical slide bar 112, a second trapezoidal screw 113, and a first hand wheel 114, two ends of the first cylindrical slide bar 112 are embedded in the first slider 111, the first hand wheel 114 is installed at one end of the forward-backward moving device 11, and one end of the second trapezoidal screw 113 passes through the first slider 111 and is connected to the first hand wheel 114.

As shown in fig. 6, the left-right moving device 12 includes a second slider 121, a second cylindrical sliding rod 122, a third trapezoidal screw 123 and a second hand wheel 124, two ends of the second cylindrical sliding rod 122 are embedded in the second slider 121, the second hand wheel 124 is installed at one end of the left-right moving device 12, one end of the third trapezoidal screw 123 passes through the second slider 121 and is connected with the second hand wheel 124, the structure of the left-right moving device 12 is the same as that of the front-back moving device 11, but the lengths of the left-right moving device 12 and the front-back moving device 11 are different, and the lengths of the first cylindrical sliding rod 112, the second cylindrical sliding rod 122, the second trapezoidal screw 113 and the third trapezoidal screw 123 are also different, so as to realize movements with different strokes.

As shown in fig. 5, the first slider 111 is provided with a groove 15, a bump 14 is arranged inside the groove 15, the bump 14 is provided with a lead screw nut hole 16, the second trapezoidal lead screw 113 is connected with the lead screw nut hole 16 in a matching manner, and the first hand wheel 114 and the second hand wheel 124 are swung to respectively axially move the first slider 111 and the second slider 121 on the second trapezoidal lead screw 113 and the third trapezoidal lead screw 123, so that the test device can be operated in a labor-saving manner and conveniently, and mainly bear a tensile (extraction) load, therefore, the first cylindrical slide rod 112 and the second cylindrical slide rod 122 are added to bear a radial force, and the structures of the first slider 111 and the second slider 121 are consistent.

The pressing plate 2 is in an inverted L shape, and the position of the material block 3 can be fixed by the inverted L-shaped pressing plate 2.

The bump 14 is cylindrical, the height of the bump 14 is less than or equal to the depth of the groove 15, and the design of the bump 14 and the groove 15 can save material cost.

The working principle of the utility model is as follows:

a tensile load device 1 is arranged above the device, a material block 3 with a screw is placed on a fixing plate 9, a pressing plate 2 is adjusted to fix the material block 3 by adjusting a fastening handle 6 of a fixed material block device 13, the material block 3 is adjusted up and down by a knob 10, the positions of the material block 3 are moved back and forth and left and right by a front-back moving device 11 and a first hand wheel 114 and a second hand wheel 124 of a left-right moving device 12 respectively, so that the screw is quickly aligned and contacted with the tensile load device 1, the axial screw extraction tests can be completed in batches, adjustably and quickly, the material blocks 3 with different fixed sizes can be realized, the material block 3 can be quickly moved, the first hand wheel 114, the second hand wheel 124 and the fastening handle 6 are used for realizing movement or locking, the test results are ensured, the test preparation time is easily shortened, and the axial screw extraction tests can be completed in batches with high efficiency, and can be made efficient to test results.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention and the technical principles applied, and any changes, modifications, substitutions, combinations, and simplifications made by those skilled in the art without departing from the spirit and principle of the present invention should be considered as equivalent replacement modes within the technical scope of the present invention.

Claims

1. The utility model provides a test device is extracted to adjustable axial of batch bone screw which characterized in that: the material block fixing device is provided with a fixing plate and a first bolt, the front-back moving device is provided with a first sliding block and a second bolt, the material block fixing device is fixed with the front-back moving device through the first bolt on the fixing plate, and the front-back moving device is fixed with the left-right moving device through the second bolt on the first sliding block.

2. The adjustable axial pull-out test set of batch bone screws of claim 1, wherein: the fixed material block device comprises a fixed block, a pressing plate, a cylindrical guide rail and a cylindrical sliding block, the fixed block is installed on the fixed plate, the fixed block is provided with the cylindrical guide rail, the cylindrical sliding block penetrates through the fixed block and the cylindrical guide rail, and one end of the cylindrical sliding block is connected with the pressing plate.

3. The adjustable axial pull-out test set of batch bone screws of claim 2, wherein: the material block fixing device further comprises a fastening handle and a half-thread bolt, the fastening handle is installed on one side of the cylindrical guide rail, and the fastening handle is connected with the cylindrical guide rail through the half-thread bolt.

4. The adjustable axial pull-out test set of batch bone screws of claim 3, wherein: the material block fixing device further comprises a first trapezoidal lead screw and a knob, the first trapezoidal lead screw penetrates through the fixing plate, one end of the first trapezoidal lead screw is connected with the fixing block, and the other end of the first trapezoidal lead screw is connected with the knob.

5. The adjustable axial pull-out test set of batch bone screws of claim 4, wherein: the knob is a triangular knob, a pentagonal knob or a hexagonal knob.

6. The adjustable axial pull-out test set of batch bone screws of claim 5, wherein: the front-back moving device comprises a first cylindrical sliding rod, a second trapezoidal lead screw and a first hand wheel, two ends of the first cylindrical sliding rod are embedded into a first sliding block, the first hand wheel is installed at one end of the front-back moving device, and one end of the second trapezoidal lead screw penetrates through the first sliding block to be connected with the first hand wheel.

7. The adjustable axial pull-out test device of batch of bone screws of claim 6, wherein: the left-right moving device comprises a second sliding block, a second cylindrical sliding rod, a third trapezoidal lead screw and a second hand wheel, wherein two ends of the second cylindrical sliding rod are embedded into the second sliding block, the second hand wheel is installed at one end of the left-right moving device, and one end of the third trapezoidal lead screw penetrates through the second sliding block to be connected with the second hand wheel.

8. The adjustable axial pull-out test set of batch bone screws of claim 7, wherein: the first sliding block is provided with a groove, a convex block is arranged on the inner side of the groove, the convex block is provided with a screw nut hole, and the second trapezoidal screw is connected with the screw nut hole in a matched mode.

9. The adjustable axial pull-out test set of batch bone screws of claim 8, wherein: the pressing plate is in an inverted L shape.

10. The adjustable axial pull-out test set of batch bone screws of claim 8, wherein: the lug is cylindric, and the lug height is less than or equal to the recess degree of depth.