CN216082011U

CN216082011U - Size-adjustable plug-in type scaffold testing clamp

Info

Publication number: CN216082011U
Application number: CN202122749201.XU
Authority: CN
Inventors: 邹明; 周科雷
Original assignee: Wuxi Qianyou Engineering Consulting And Testing Co ltd
Current assignee: Wuxi Qianyou Engineering Consulting And Testing Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-03-18
Anticipated expiration: 2031-11-10

Abstract

The application relates to the field of workpiece strength test fixtures, in particular to a size-adjustable plug-in type scaffold test fixture, which comprises a test part and a fixing part, wherein the fixing part is located below the test part. The outer side of the testing part is connected with a guide rod, the outer side of the fixing part is connected with a guide sleeve, the guide rod and the guide sleeve are coaxial and are vertically arranged, and the guide rod penetrates through the guide sleeve in a sliding mode. This application has the effect of being convenient for carry out mutual accurate positioning to test portion and fixed part.

Description

Size-adjustable plug-in type scaffold testing clamp

Technical Field

The application relates to the field of workpiece strength test fixtures, in particular to a size-adjustable plug-in type scaffold test fixture.

Background

The plug-in type scaffold mainly comprises upright posts, cross bars and the like, wherein sockets are welded on the upright posts, plugs are welded on the cross bars, and the plugs are inserted into the sockets, so that the scaffold with various sizes can be spliced. The plug-in type scaffold needs to be subjected to tensile or compressive test before construction so as to improve safety. During testing, a workpiece to be tested of the plug-in type scaffold needs to be installed in the test fixture, and then the test fixture is applied with force by the testing machine, so that strength detection is carried out on the plug-in type scaffold.

At present, chinese patent publication No. CN213933372U discloses a novel mechanical property test fixture for scaffold members, which includes a testing portion and a fixing portion located below the testing portion. The top end of the workpiece is fixed in the testing part, the bottom end of the workpiece is fixed in the fixing part, and the testing part applies pressure or tensile force to the component to be tested to test the compression resistance or tensile resistance of the component.

With respect to the related art in the above, the inventors consider that: the testing part and the fixing part are of a separated structure, and mutual accurate positioning is not easy to carry out.

SUMMERY OF THE UTILITY MODEL

In order to carry out mutual accurate positioning to test portion and fixed part for the convenience, this application provides a size adjustable plug-in type scaffold frame test fixture.

The application provides a pair of plug-in type scaffold frame test fixture of adjustable size adopts following technical scheme:

the utility model provides a size adjustable plug-in type scaffold frame test fixture, includes test portion, fixed part, the fixed part is located the below of test portion, the outside of test portion is connected with the guide bar, the outside of fixed part is connected with the uide bushing, the guide bar with the uide bushing is coaxial and all is vertical setting, the guide bar slides and wears to locate in the uide bushing.

Through adopting above-mentioned technical scheme, guide bar and uide bushing sliding fit play the effect of location direction to test portion and fixed part, have improved the accuracy nature of test portion and fixed part mutual location.

Optionally, the guide rod includes an installation rod, a screw rod and an extension rod, the installation rod, the screw rod and the extension rod are coaxial and are vertically arranged, the screw rod is fixed at the bottom end of the installation rod, the extension rod is in threaded connection with the screw rod, and the extension rod is slidably arranged in the guide sleeve in a penetrating manner.

Through adopting above-mentioned technical scheme, carry out relative rotation to extension rod and screw rod to the axial displacement of drive extension rod along the screw rod, thereby adjust the interval between extension rod and the installation pole, reached the effect of adjusting guide bar length, thereby can adjust the length of guide bar according to the interval between test section and the fixed part.

Optionally, the outside of test section is fixed with first backup pad, the installation pole rotate around the axis of self connect in first backup pad, the outside of fixed part is fixed with the second backup pad, uide bushing fixed connection in the second backup pad, it has the spacing groove to follow vertical opening on the circumference wall of uide bushing, be connected with the gag lever post on the extension rod, the gag lever post is worn to locate the spacing inslot.

Through adopting above-mentioned technical scheme, when the length of guide bar was adjusted to needs, rotated the installation pole, the installation pole drives the screw rod and rotates, and the stop lever restricts the extension rod to the extension rod can't rotate, makes the extension rod follow the axial displacement of screw rod. The limiting groove is used for limiting the limiting rod, so that the lifting height of the extension rod is limited, and the possibility that the extension rod is separated from the guide sleeve is reduced.

Optionally, the limiting rod is connected to the extension rod in a threaded manner.

Through adopting above-mentioned technical scheme, the gag lever post of dismouting of being convenient for.

Optionally, an installation ring groove is formed in the bottom end face of the installation rod, the installation ring groove and the installation rod are coaxially arranged, a protection sleeve is inserted in the installation ring groove in a sliding mode, the screw rod is located in the protection sleeve, and the bottom end of the protection sleeve abuts against the extension rod.

Through adopting above-mentioned technical scheme, the lag is used for protecting the screw rod, has reduced the screw rod and has received the influence of the outside dust of lag to the life of screw rod has been improved.

Optionally, a compression elastic member is arranged in the mounting ring groove, the compression elastic member is located on the upper side of the protecting sleeve, and the compression elastic member abuts against the protecting sleeve.

Through adopting above-mentioned technical scheme, vertical decurrent power is applyed to the lag to the compression elastic component for the lag supports tight extension rod, thereby has improved the leakproofness between lag and the extension rod, and then has improved the protective effect of lag to the screw rod.

Optionally, scale marks are drawn on the outer circumferential wall of the protecting sleeve, and the scale marks are arranged in a direction parallel to the axis of the protecting sleeve.

Through adopting above-mentioned technical scheme, the height that the lag descends is convenient for observe by the scale mark to calculate the distance that the extension rod removed, thereby be convenient for the accuracy to the length of accuse guide bar.

Optionally, the bottom end of the extension rod is rounded.

Through adopting above-mentioned technical scheme, the bottom of extension rod has the fillet, is convenient for the extension rod to insert in the uide bushing when the installation extension rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the guide rod is in sliding fit with the guide sleeve, so that the positioning and guiding effects on the testing part and the fixing part are achieved, and the accuracy of mutual positioning of the testing part and the fixing part is improved;

2. the guide rod comprises an installation rod, a screw rod and an extension rod, so that the length of the guide rod can be conveniently adjusted;

3. the protective sleeve is arranged, so that the service life of the screw rod is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a size-adjustable plug-in scaffold test fixture according to an embodiment of the present application.

Fig. 2 is a top view of a size-adjustable plug-in scaffold test fixture of an embodiment of the present application.

Fig. 3 is a sectional view taken along line a-a in fig. 2.

Description of reference numerals:

1. a test section; 11. mounting grooves; 12. a first support plate; 2. a fixed part; 21. fixing grooves; 22. a second support plate; 3. a guide bar; 31. mounting a rod; 311. mounting a ring groove; 32. a screw; 33. an extension pole; 331. a thread groove; 34. compressing the elastic member; 35. a protective sleeve; 36. scale lines; 4. a guide sleeve; 41. a limiting groove; 5. a limiting rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses size adjustable plug-in type scaffold frame test fixture.

Referring to fig. 1, 2 and 3, the size-adjustable plug-in scaffold test fixture includes a test part 1, a fixing part 2, the fixing part 2 is located below the test part 1, a mounting groove 11 is provided on the lower side of the test part 1, and a fixing groove 21 is provided on the upper side of the fixing part 2.

Referring to fig. 1 and 3, when detecting the strength of the plug-in scaffold, one end of the component to be detected is fixed in the fixing groove 21, the other end of the component to be detected is fixed in the mounting groove 11, then the fixing portion 2 and the measuring portion are both mounted on the testing machine, and the testing machine applies tension or pressure to the testing portion 1, so that tension or pressure is applied to the component to be detected, and the strength of the component to be detected is detected.

Referring to fig. 1 and 3, a first support plate 12 is fixedly connected to an outer side of the test part 1, and the first support plate 12 is horizontally disposed. The bottom of first backup pad 12 is connected with guide bar 3, and guide bar 3 is including installation pole 31, screw rod 32, extension rod 33, and installation pole 31, screw rod 32, the coaxial setting of extension rod 33 just all are vertical setting. The top end of the mounting rod 31 is rotatably connected to the bottom of the first supporting plate 12, the mounting rod 31 can rotate around its own axis, and the mounting rod 31 is located at one end of the first supporting plate 12 far away from the testing part 1.

Referring to fig. 1 and 3, the screw rod 32 is fixedly connected to the bottom end of the mounting rod 31, the screw rod 32 has a diameter smaller than that of the mounting rod 31, the upper end surface of the extension rod 33 is provided with a screw groove 331, and the screw rod 32 is threadedly connected to the inner wall of the screw groove 331.

Referring to fig. 1 and 3, in order to protect the screw rod 32, a mounting ring groove 311 is formed on the bottom end surface of the mounting rod 31, the mounting ring groove 311 is coaxially arranged with the mounting rod 31, and the inner diameter of the mounting ring groove 311 is larger than the diameter of the screw rod 32. The bottom of the mounting ring slot 311 is provided with a compression elastic member 34, and the compression elastic member 34 is a compression spring. The installation ring slot 311 is slidably inserted with a protection sleeve 35, the compression elastic member 34 is located at the top end of the protection sleeve 35, and the compression elastic member 34 is extruded between the bottom wall of the installation ring slot 311 and the top end of the protection sleeve 35.

Referring to fig. 1 and 3, under the action of the body weight of the protecting sleeve 35 and the elastic force of the compression elastic member 34, the bottom end of the protecting sleeve 35 abuts against the extension rod 33, so that the screw 32 is located in the protecting sleeve 35, the possibility that the screw 32 is damaged by dust outside the protecting sleeve 35 is reduced, and the service life of the screw 32 is prolonged.

Referring to fig. 1 and 3, in addition, in order to observe the distance that the extension bar 33 moves relative to the mounting bar 31, the outer circumferential wall of the shield 35 is marked with scale lines 36, and the scale lines 36 are distributed in a direction parallel to the axis of the shield 35. Therefore, the moving distance of the extension rod 33 relative to the mounting rod 31 can be deduced according to the scale marks 36 of the mounting ring groove 311 in the depth of the protective sleeve 35, so as to achieve the effect of accurately adjusting the length of the guide rod 3.

Referring to fig. 1 and 3, a second supporting plate 22 is fixedly connected to the outer side of the fixing portion 2, the second supporting plate 22 is horizontally arranged, a guide sleeve 4 is fixedly connected to the upper surface of the second supporting plate 22, and the guide sleeve 4 is vertically arranged and is located at the end portion, far away from the fixing portion 2, of the second supporting plate 22. Extension rod 33 slides and wears to locate in uide bushing 4, and in order to facilitate extension rod 33 to insert in uide bushing 4, extension rod 33's bottom has the fillet.

Referring to fig. 1 and 3, the extension rod 33 is slidably fitted with the guide sleeve 4 to have a guiding effect on the mutual positioning between the test part 1 and the fixing part 2, thereby improving the accuracy of the positioning between the test part 1 and the fixing part 2.

Referring to fig. 1 and 3, when the length of the to-be-measured component changes and the length of the guide rod 3 needs to be adjusted, an operator drives the screw rod 32 and the extension rod 33 to rotate relatively, so that the extension rod 33 moves along the axis of the screw rod 32, and the effect of adjusting the length of the guide rod 3 is achieved.

Referring to fig. 1 and 3, in order to reduce the possibility that the extension rod 33 is separated from the guide sleeve 4, a limit groove 41 is vertically formed in the circumferential wall of the guide sleeve 4, a limit rod 5 is connected to the outer side of the extension rod 33 through threads, and the limit rod 5 is horizontally arranged and penetrates through the limit groove 41. The stopper groove 41 limits the elevation height of the stopper rod 5, thereby reducing the possibility that the extension rod 33 is separated from the guide sleeve 4.

The implementation principle of the plug-in type scaffold test fixture with adjustable size in the embodiment of the application is as follows: when detecting plug-in type scaffold frame intensity, at first according to the length adjustment test part 1 of the part that awaits measuring and the interval between 2 of fixed part, when the length of guide bar 3 does not match, rotate installation pole 31, installation pole 31 drives screw rod 32 and rotates, and screw rod 32 drives extension rod 33 and goes up and down to the length of adjustment guide bar 3. One end of the component to be tested is fixed in the fixing groove 21, the other end of the component to be tested 1 is fixed in the mounting groove 11, and then the fixing part 2 and the measuring part are both mounted on the testing machine. The test section 1 is subjected to a tensile force or a compressive force by the testing machine, and the component to be tested is subjected to a tensile force or a compressive force, thereby detecting the strength of the component to be tested. The sliding fit of the guide rod 3 and the guide sleeve 4 achieves the effect of mutually accurately positioning the testing part 1 and the fixing part 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a size adjustable plug-in type scaffold test fixture, includes test portion (1), fixed part (2) are located the below of test portion (1), its characterized in that: the outside of test portion (1) is connected with guide bar (3), the outside of fixed part (2) is connected with uide bushing (4), guide bar (3) with uide bushing (4) are coaxial and all are vertical setting, guide bar (3) slide to wear to locate in uide bushing (4).

2. The adjustable size plug-in scaffold test fixture of claim 1, wherein: guide bar (3) are including installation pole (31), screw rod (32), extension rod (33), installation pole (31) screw rod (32) extension rod (33) are coaxial and be vertical setting, screw rod (32) are fixed in the bottom of installation pole (31), extension rod (33) threaded connection in screw rod (32), extension rod (33) slide to wear to locate in uide bushing (4).

3. The adjustable size plug-in scaffold test fixture of claim 2, wherein: the outside of test section (1) is fixed with first backup pad (12), installation pole (31) rotate around the axis of self connect in first backup pad (12), the outside of fixed part (2) is fixed with second backup pad (22), uide bushing (4) fixed connection in second backup pad (22), there are spacing groove (41) along vertical opening on the circumference wall of uide bushing (4), be connected with gag lever post (5) on extension rod (33), gag lever post (5) are worn to locate in spacing groove (41).

4. The adjustable size plug-in scaffold test fixture of claim 3, wherein: the limiting rod (5) is in threaded connection with the extension rod (33).

5. The adjustable size plug-in scaffold test fixture of claim 2, wherein: installation annular groove (311) have been opened to the bottom face of installation pole (31), installation annular groove (311) with installation pole (31) coaxial setting, it has lag (35) to slide to insert in installation annular groove (311), screw rod (32) are located lag (35) are interior, the bottom of lag (35) contradict in extension rod (33).

6. The adjustable size plug-in scaffold test fixture of claim 5, wherein: and a compression elastic piece (34) is arranged in the mounting ring groove (311), the compression elastic piece (34) is positioned on the upper side of the protective sleeve (35), and the compression elastic piece (34) is abutted against the protective sleeve (35).

7. The adjustable size plug-in scaffold test fixture of claim 5, wherein: scale marks (36) are marked on the outer circumferential wall of the protecting sleeve (35), and the scale marks (36) are arranged in the direction parallel to the axis of the protecting sleeve (35).

8. The adjustable size plug-in scaffold test fixture of claim 2, wherein: the bottom end of the extension rod (33) is chamfered.