CN211821387U - Test jig for safety technology protection system - Google Patents

Abstract

The utility model relates to a test jig for a safety and technical precaution system, including A-frame, telescopic link and test cassette, the telescopic link includes outer loop bar, middle loop bar and inner loop bar, the A-frame is fixed at the top of outer loop bar, the middle loop bar can be slided from top to bottom cup jointed in outer loop bar, the inner loop bar can be slided from top to bottom cup jointed in middle loop bar, the bottoms of middle loop bar and inner loop bar are all provided with elastic spacing components; the test card seat is arranged on the inner loop bar, and a pair of elastic clamping components for clamping the test card are arranged on the test card seat; the utility model has the advantages of be convenient for altitude mixture control, to test card centre gripping stable, applicable multiple size test card, convenient operation.

Description

Test jig for safety technology protection system

Technical Field

The utility model belongs to the technical field of detect auxiliary assembly, concretely relates to safety and technical protection is test jig for system.

Background

The video camera is a key device in a safety technology protection system, and the working effect of the safety protection system is influenced by the shooting definition of the video camera. Before a video camera is put into use, a definition test card is required to be used for testing the shooting definition of the video camera, and the installation heights of the definition test cards are different because the installation heights of the video cameras are different.

The application publication number is CN205938415U, which discloses a multifunctional test stand for a safety technology precaution system; the test frame positions the telescopic rod which is adjusted in place through the telescopic adjusting knob which is arranged on the side face of the telescopic rod, and in the mode, when the height and the length of the telescopic rod are adjusted, the adjusting knob needs to be rotated, so that the operation is extremely inconvenient; the size of the test card holder clamping test cards of the test frame is not adjustable, the test frame is not suitable for test cards with different sizes, and the use is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art not enough and providing a test jig for safety technology guard system convenient to altitude mixture control, to test card centre gripping stability, applicable multiple size test card, convenient operation.

The technical scheme of the utility model as follows:

a test jig for a safety technology precaution system comprises a triangular support, a telescopic rod and a test clamping seat, wherein the telescopic rod comprises an outer loop bar, a middle loop bar and an inner loop bar; the test card seat is arranged on the inner loop bar, and a pair of elastic clamping components used for clamping the test card are arranged on the test card seat.

Furthermore, the elastic limiting assembly comprises a pair of clamping blocks penetrating through the rod wall of the middle sleeve rod or the inner sleeve rod, one end, located in the cavity of the middle sleeve rod or the inner sleeve rod, of each clamping block is provided with a baffle, and a first elastic spring is arranged between the two baffles.

Furthermore, a plurality of clamping holes matched with the clamping blocks are longitudinally arranged on the rod walls of the middle loop bar and the outer loop bar.

Furthermore, the inner wall of the outer loop bar is provided with a sliding groove along the longitudinal direction of the outer loop bar, and the sliding groove is used for sliding the clamping block on the inner loop bar.

Further, elasticity centre gripping subassembly includes splint, the lower extreme of splint is provided with the connecting rod, the lower extreme of connecting rod is provided with the slider, be provided with second elasticity spring on the slider.

Furthermore, a cavity for accommodating the slider is formed in the position, close to the left end and the right end, of the test card holder, a strip-shaped through hole for the connecting rod to penetrate through is formed in the position, corresponding to the cavity, of the upper side face of the test card holder, one end of the second elastic spring is fixed on the slider, and the other end of the second elastic spring is fixed on the side wall of the cavity of the test card holder.

Further, the bottom of test cassette is provided with universal regulator, the bottom of universal regulator is provided with the connecting seat that is the tubbiness, the connecting seat is fixed on the top of inner loop pole, is provided with little plummet on the universal regulator, little plummet is located the connecting seat.

Furthermore, the connecting seat is made of transparent materials.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model adopts the elastic spacing component to cooperate with the clamping hole to limit and fix the inner loop bar and the middle loop bar as well as the middle loop bar and the outer loop bar, thereby facilitating the adjustment of the height of the test clamping seat and the fixation between the loop bars, and when the telescopic rod needs to be operated, the corresponding loop bar can slide only by pressing the elastic spacing component; the utility model arranges the elastic clamping component on the test card seat, which can realize the clamping of the test card and is suitable for clamping the test cards with different sizes; the middle triangular bracket of the utility model has good supporting function for the telescopic rod, thereby keeping the stability of the test card seat;

in a word, the utility model has the advantages of be convenient for altitude mixture control, to test card centre gripping stable, applicable multiple size test card, convenient operation.

Drawings

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

FIG. 2 is a cross-sectional view of the telescoping rod of FIG. 1;

FIG. 3 is an enlarged view of a portion of portion I of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the telescoping rod;

fig. 5 is a schematic cross-sectional view of a test socket.

In the figure: 1. a triangular support, 2, a telescopic rod, 201, an outer sleeve rod, 2011, a sliding chute, 202, a middle sleeve rod, 203, an inner sleeve rod, 3, a test clamping seat, 4, a clamping block, 5, a baffle, 6, a first elastic spring, 7, a clamping hole, 8, a test card, 9, a clamping plate, 10, a connecting rod, 11, a sliding block, 12, a second elastic spring, 13, a cavity, 14, a universal regulator, 15, a connecting seat, 16, a small plumb bob, 17, a strip-shaped through hole, 18 and a clamping block.

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.

As shown in fig. 1, a test jig for a safety and technical protection system includes a triangular bracket 1, a telescopic rod 2 and a test card holder 3, where the telescopic rod 2 includes an outer loop bar 201, a middle loop bar 202 and an inner loop bar 203, which are all cylindrical or square-cylindrical structures, the triangular bracket 1 is fixed at the top of the outer loop bar 201, the middle loop bar 202 is sleeved in the outer loop bar 201 in a vertically slidable manner, the inner loop bar 203 is sleeved in the middle loop bar 202 in a vertically slidable manner, and the bottoms of the middle loop bar 202 and the inner loop bar 203 are both provided with elastic limiting components for limiting and fixing the outer loop bar 201 and the middle loop bar 202, and the middle loop bar 202 and the inner loop bar 203; the test card holder 3 is arranged on the inner loop bar 203, and a pair of elastic clamping components used for clamping the test card 8 is arranged on the test card holder 3.

As shown in fig. 2-4, the elastic limiting assembly includes a pair of retainers 4 penetrating through the rod wall of the middle rod 202 or the inner rod 203, a baffle 5 is disposed at one end of the retainer 4 located in the cavity of the middle rod 202 or the inner rod 203, and a first elastic spring 6 is disposed between the two baffles 5; the rod walls of the middle loop bar 202 and the outer loop bar 201 are longitudinally provided with a plurality of clamping holes 7 matched with the clamping blocks 4; the inner wall of the outer loop bar 201 is provided with a sliding groove 2011 for the fixture block 4 on the inner loop bar 203 to slide along the longitudinal direction of the inner loop bar, and the arrangement of the sliding groove 2011 effectively avoids the influence on the sliding of the middle loop bar 202 caused by the friction between the fixture block 4 on the outer loop bar 203 and the inner wall of the outer loop bar 201 when the middle loop bar is pulled upwards; the fixture block 4 is of a cylindrical structure with one circular arc-shaped end, the circular arc-shaped end is arranged towards the outer side of each loop bar, the baffle 5 is matched with the inner wall of each loop bar, the fixture block 4 and the baffle 5 can be integrally formed, and two ends of the first elastic spring 6 are welded or bonded on the baffle 5 respectively.

In a conventional state, a fixture block 4 of an elastic limiting assembly on the middle loop bar 202 is clamped in a clamping hole at the lowest end of the outer loop bar 201, and a fixture block 4 of an elastic limiting assembly on the inner loop bar 203 is clamped in a clamping hole at the lowest end of the middle loop bar 202; when the length of the telescopic rod 2 needs to be adjusted, the fixture block 4 protruding out of the outer loop bar 201 is pressed, so that the fixture block 4 is led out of the clamping hole 7 in the outer loop bar 201, then the test cassette holder 3 is pulled upwards until the test cassette holder 3 is adjusted to a proper height, when the fixture block on the middle loop bar 202 is clamped in the clamping hole 7 at the uppermost end of the outer loop bar 201, the height of the test cassette holder 3 still cannot meet the requirement, and the inner loop bar 203 is pulled in the same way until the test cassette holder 3 is adjusted to a proper height; it should be noted that, when the latch 4 is not applied with a force in a direction opposite to the elastic force provided by the first elastic spring 6, the arc-shaped end of the latch 4 is at least flush with the outer side surface of the outer loop bar 201 or the middle loop bar 202.

As shown in fig. 5, the elastic clamping assembly includes a clamping plate 9, a connecting rod 10 is disposed at a lower end of the clamping plate 9, a sliding block 11 is disposed at a lower end of the connecting rod 10, and a second elastic spring 12 is disposed on the sliding block 11; the testing card holder 3 is provided with a cavity 13 for accommodating the sliding block 11 near the left end and the right end, a strip-shaped through hole 17 for the connecting rod 10 to pass through is arranged at the position, corresponding to the cavity 13, of the upper side face of the testing card holder 3, one end of the second elastic spring 12 is fixed on the sliding block 11, the other end of the second elastic spring 12 is fixed on the side wall of the cavity 13 of the testing card holder 3, and in order to push and pull the clamping plate 9, a clamping block 18 is integrally formed in the middle of the clamping plate 9.

When a test card needs to be installed, the clamping plates 9 are pushed to move towards the two ends of the test card holder 3 by accelerating the movement of the clamping plates 18, in the moving process of the clamping plates 9, the connecting rods 10 drive the sliding blocks 11 to slide in the cavities 13, the sliding blocks 11 extrude the second elastic springs 12, after the two clamping plates 9 slide to proper positions, the test card 8 is placed on the test card holder 3 between the two clamping plates 9 to be sweated, then the clamping blocks 18 are loosened, and under the elastic action of the second elastic springs 12, the clamping plates 9 want to move at the center of the test card holder 3 until the test card 8 is clamped.

As shown in fig. 1-2, a universal adjuster 14 is disposed at the bottom of the test card holder 3, a connecting seat 15 in a barrel shape is disposed at the bottom of the universal adjuster 14, the connecting seat 15 is fixed at the top end of the inner loop bar 203, a small plumb 16 is disposed on the universal adjuster 14, and the small plumb 16 is located in the connecting seat 15; the connecting seat 15 is made of transparent material; little plummet 16 is in transparent connecting seat 15, and whether user of service can judge test cassette 3 level through the vertical state who observes little plummet 16, when the levelness of test cassette 3 needs to be adjusted, only need adjust the levelness of test cassette 3 through universal regulator 14.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or some technical features thereof may be modified.

Claims (8)

1. The utility model provides a test jig for safety and technical precaution system, includes A-frame (1), telescopic link (2) and test cassette (3), its characterized in that: the telescopic rod (2) comprises an outer loop bar (201), a middle loop bar (202) and an inner loop bar (203), the triangular support (1) is fixed to the top of the outer loop bar (201), the middle loop bar (202) can be sleeved in the outer loop bar (201) in a vertically sliding mode, the inner loop bar (203) can be sleeved in the middle loop bar (202) in a vertically sliding mode, and elastic limiting assemblies are arranged at the bottoms of the middle loop bar (202) and the inner loop bar (203); the test card seat (3) is arranged on the inner loop bar (203), and a pair of elastic clamping components used for clamping the test card (8) is arranged on the test card seat (3).

2. The test rack for a safety and technical protection system according to claim 1, wherein: the elastic limiting assembly comprises a pair of clamping blocks (4) penetrating through the rod wall of the middle sleeve rod (202) or the inner sleeve rod (203), one end, located in a cavity of the middle sleeve rod (202) or the inner sleeve rod (203), of each clamping block (4) is provided with a baffle (5), and a first elastic spring (6) is arranged between the two baffles (5).

3. The test rack for a safety precaution system according to claim 2, characterized in that: and a plurality of clamping holes (7) matched with the clamping blocks (4) are formed in the rod walls of the middle loop rod (202) and the outer loop rod (201) along the longitudinal direction.

4. The test rack for a safety precaution system according to claim 2, characterized in that: the inner wall of the outer loop bar (201) is provided with a sliding groove (2011) for the sliding of the clamping block (4) on the inner loop bar (203) along the longitudinal direction of the inner loop bar.

5. The test rack for a safety and technical protection system according to claim 1, wherein: the elasticity centre gripping subassembly includes splint (9), the lower extreme of splint (9) is provided with connecting rod (10), the lower extreme of connecting rod (10) is provided with slider (11), be provided with second elasticity spring (12) on slider (11).

6. The test rack for a safety and technical protection system according to claim 5, wherein: the testing clamp seat (3) is provided with a cavity (13) used for accommodating the sliding block (11) near the left end and the right end, a strip-shaped through hole (17) for the connecting rod (10) to penetrate is formed in the position, corresponding to the cavity (13), of the upper side face of the testing clamp seat (3), one end of the second elastic spring (12) is fixed on the sliding block (11), and the other end of the second elastic spring (12) is fixed on the side wall of the cavity (13) of the testing clamp seat (3).

7. The test rack for a safety-technical containment system according to any one of claims 1 to 6, wherein: the bottom of test cassette (3) is provided with universal regulator (14), the bottom of universal regulator (14) is provided with connecting seat (15) that are tubbiness, the top at inner loop pole (203) is fixed in connecting seat (15), is provided with little plummet (16) on universal regulator (14), little plummet (16) are located connecting seat (15).

8. The test rack for a safety and technical protection system according to claim 7, wherein: the connecting seat (15) is made of transparent materials.

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