CN214893949U

CN214893949U - Falling test device convenient to height-adjusting

Info

Publication number: CN214893949U
Application number: CN202120507759.4U
Authority: CN
Inventors: 刘剑峰
Original assignee: Nedschroef Fastener Kunshan Co ltd
Current assignee: Nedschroef Fastener Kunshan Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-11-26
Anticipated expiration: 2031-03-10

Abstract

The utility model discloses a testing arrangement that falls convenient to height-adjusting, concretely relates to testing arrangement field that falls, the power distribution box comprises a box body, inner chamber of the box top is equipped with two first backup pads, and two first backup pads set up about box center axis symmetry, first backup pad passes through the bearing and is connected with inner chamber of the box top, first recess has been seted up to first backup pad bottom. The utility model discloses a first motor, first belt and first belt pulley drive first backup pad and rotate, first backup pad drives second backup pad and third backup pad and rotates, the third backup pad drives the lead screw through the meshing of first bevel gear and second bevel gear and rotates, the lead screw drives the screw sleeve board on it and removes, then through the second motor, second belt and second belt pulley drive the threaded rod and rotate, carry out the regulation of height, overall structure is driven by first motor and second motor, high efficiency, the cost is low.

Description

Falling test device convenient to height-adjusting

Technical Field

The utility model relates to a drop testing arrangement field, concretely relates to drop testing arrangement convenient to height-adjusting.

Background

Drop testing is generally used primarily to simulate the free fall that a product may experience during handling use, investigating the ability of the product to resist accidental impact. The drop height is usually based on the product weight and the probability of a possible drop, and the drop surface should be a smooth, hard, rigid surface made of concrete or steel.

Utility model with patent number CN210802837U provides a fall case testing arrangement convenient to adjust. The box that falls testing arrangement convenient to adjust includes the box, the both sides of box inner wall bottom are all rotated and are connected with the threaded rod, two the outside that the box just extended to the box is all run through on the top of threaded rod, two the equal threaded connection in surface of threaded rod has the thread piece, the both sides at box inner wall top just are located two equal fixedly connected with deflector between the relative one side of threaded rod, two the threaded rod is located the first belt pulley of the equal fixedly connected with in top of box outside.

The prior art has the following defects: the longitudinal adjustment mechanism and the transverse adjustment mechanism are formed by a plurality of electric components, so that the efficiency is low and the cost is high.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a drop testing arrangement convenient to height-adjusting, through first motor, first belt and first belt pulley drive first backup pad and rotate, first backup pad drives second backup pad and third backup pad and rotates, the third backup pad drives the lead screw through the meshing of first bevel gear and second bevel gear and rotates, the lead screw drives the screw bushing plate on it and removes, then through the second motor, second belt and second belt pulley drive the threaded rod and rotate, carry out the regulation of height, overall structure is driven by first motor and second motor, and is efficient, and the cost is low.

In order to achieve the above object, the present invention provides the following technical solutions: a falling test device convenient for height adjustment comprises a box body, wherein two first supporting plates are arranged at the top of an inner cavity of the box body and are symmetrically arranged about a central axis of the box body, the first supporting plates are connected with the top of the inner cavity of the box body through bearings, first grooves are formed in the bottoms of the first supporting plates, second supporting plates are arranged in the first grooves, the bottom ends of the second supporting plates penetrate through the first grooves and extend to the bottoms of the first supporting plates, second grooves are formed in the bottoms of the second supporting plates, third supporting plates are arranged in the second grooves, the bottom ends of the third supporting plates penetrate through the second grooves and extend to the bottoms of the second supporting plates, sliding grooves are formed in the first grooves and the second grooves, sliding blocks are arranged in the sliding grooves, and the two sliding blocks on the first grooves are respectively and fixedly connected with the two sides of the top ends of the second supporting plates, the two sliding blocks on the second groove are respectively fixedly connected with two sides of the top end of the two third supporting plates, the outer wall of the bottom end of each third supporting plate is sleeved with a sleeve, the sleeve is connected with the outer wall of the bottom end of each third supporting plate through a bearing, the bottom of each third supporting plate is fixedly provided with a first bevel gear, the bottom of each third supporting plate is provided with a fixed plate, the top of each fixed plate is fixedly provided with a connecting rod, the top of each connecting rod is fixedly connected with one side of the corresponding sleeve, the top of each fixed plate is provided with a limiting groove, the limiting groove is arranged on one side, away from the fixed plate, of the connecting rod, one end, away from the third supporting plate, of the limiting groove penetrates through the fixed plate, a screw rod is arranged inside the limiting groove, one end, close to the limiting groove, of the screw rod is connected with the inner wall of the limiting groove through a bearing, the outer wall of one end, close to the third supporting plate, of the screw rod is fixedly sleeved with a second bevel gear, and the second bevel gear is arranged at the bottom of the first bevel gear, the second bevel gear is meshed with the first bevel gear, a threaded sleeve plate is connected to the outer wall of one end, away from the second bevel gear, of the screw rod in a threaded manner, the threaded sleeve plate is in contact with the inner wall of the limiting groove, one end, away from the screw rod, of the threaded sleeve plate penetrates through the limiting groove and extends to the outside of the limiting groove, a mechanical claw is fixedly arranged at one end, away from the fixing plate, of the threaded sleeve plate, two first belt pulleys are arranged at the top of the box body, a first belt is arranged between the two first belt pulleys and connected through the first belt, the two first belt pulleys are both connected with the top of the box body through rotating shafts, the rotating shafts on the two first belt pulleys penetrate through the box body and are respectively fixedly connected with the tops of the two first supporting plates, a first motor is arranged at the top of the box body and fixedly arranged at the top of one of the first belt pulleys, and a longitudinal adjusting structure is arranged at one side, away from the two fixing plates, the longitudinal adjusting structure is fixedly arranged inside the box body.

Further, vertical regulation structure includes two threaded rods, and two threaded rods set up in the one side that two fixed plates kept away from mutually, the threaded rod both ends all are connected with box inner chamber top and bottom respectively through the bearing, threaded rod bottom outer wall threaded connection has the screw thread seat, screw thread seat one side and fixed plate fixed connection, screw thread seat opposite side and box inner wall contact, the bottom half is equipped with two second pulleys, is equipped with the second belt between two second pulleys, and two second pulleys pass through the second belt to be connected, the bottom half is equipped with the second motor, the second motor is fixed to be set up in one of them second pulley bottom.

Further, two positioning cavities are formed in the first supporting plate and the second supporting plate, the two positioning cavities are arranged on two sides of the first groove and the second groove respectively, L-shaped positioning rods are arranged in the positioning cavities, protruding blocks are fixedly arranged at the top ends of the L-shaped positioning rods, communicating ports are formed in one sides, close to the positioning cavities, of the bottoms of the first supporting plate and the second supporting plate, the bottoms of the L-shaped positioning rods penetrate through the positioning cavities and extend to the bottoms of the positioning cavities, the two L-shaped positioning rods in the first supporting plate are fixedly connected with two sides of the bottom of the second supporting plate respectively, and the two L-shaped positioning rods in the second supporting plate are fixedly connected with two sides of the bottom of the third supporting plate respectively.

Furthermore, two protective doors are hinged to the front side of the box body.

Furthermore, a simulation plate is fixedly arranged at the bottom of the inner cavity of the box body and arranged between the two mechanical claws.

Furthermore, four corners of the bottom of the box body are fixedly provided with supporting legs.

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

the utility model discloses a first motor, first belt and first belt pulley drive first backup pad and rotate, and the cooperation through slider and spout makes first backup pad drive second backup pad and third backup pad and rotate, the third backup pad drives the lead screw through the meshing of first bevel gear and second bevel gear and rotates, the lead screw drives the screw bushing plate on it and removes, then through the second motor, screw seat and fixed plate on second belt and the second belt pulley drive the threaded rod shift up, carry out the regulation of height, overall structure's vertical and horizontal regulation only is driven by first motor and second motor, and is efficient, and the cost is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a front view of the overall structure provided by the present invention;

fig. 2 is a cross-sectional view of the overall structure provided by the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention;

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

fig. 5 is an enlarged view of a portion C in fig. 2 according to the present invention;

FIG. 6 is a sectional view of the fixing plate, the limiting groove and the threaded sleeve plate according to the present invention;

fig. 7 is a front view of the first support plate, the second support plate and the third support plate provided by the present invention.

In the figure: the device comprises a box body 1, a first supporting plate 2, a first groove 3, a second supporting plate 4, a second groove 5, a third supporting plate 6, a sliding groove 7, a sliding block 8, a sleeve 9, a first bevel gear 10, a fixing plate 11, a connecting rod 12, a limiting groove 13, a lead screw 14, a second bevel gear 15, a threaded sleeve plate 16, a mechanical claw 17, a first belt pulley 18, a first belt 19, a threaded rod 20, a threaded seat 21, a second belt pulley 22, a second motor 23, a positioning cavity 24, a positioning rod 25L, a convex block 26, a communication port 27, a simulation plate 28, a second belt 29 and a first motor 30.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-7 in the specification, the drop test device convenient for height adjustment of the embodiment comprises a box body 1, wherein two first supporting plates 2 are arranged at the top of an inner cavity of the box body 1, the two first supporting plates 2 are symmetrically arranged about a central axis of the box body 1, the first supporting plates 2 are connected with the top of the inner cavity of the box body 1 through bearings, first grooves 3 are formed in the bottoms of the first supporting plates 2, second supporting plates 4 are arranged inside the first grooves 3, the bottom ends of the second supporting plates 4 penetrate through the first grooves 3 and extend to the bottoms of the first supporting plates 2, second grooves 5 are formed in the bottoms of the second supporting plates 4, third supporting plates 6 are arranged inside the second grooves 5, the bottom ends of the third supporting plates 6 penetrate through the second grooves 5 and extend to the bottoms of the second supporting plates 4, sliding grooves 7 are formed in the first grooves 3 and the second grooves 5, the slide block 8 is arranged in the chute 7, the two slide blocks 8 on the first groove 3 are respectively fixedly connected with two sides of the top end of the second support plate 4, the two slide blocks 8 on the second groove 5 are respectively fixedly connected with two sides of the top end of the two third support plates 6, the outer wall of the bottom end of each third support plate 6 is sleeved with a sleeve 9, the sleeve 9 is connected with the outer wall of the bottom end of each third support plate 6 through a bearing, the bottom of each third support plate 6 is fixedly provided with a first bevel gear 10, the bottom of each third support plate 6 is provided with a fixing plate 11, the top of each fixing plate 11 is fixedly provided with a connecting rod 12, the top of each connecting rod 12 is fixedly connected with one side of the corresponding sleeve 9, the top of each fixing plate 11 is provided with a limiting groove 13, each limiting groove 13 is arranged on one side, away from the corresponding fixing plate 11, one end, away from the corresponding third support plate 6, of each limiting groove 13 penetrates through the corresponding fixing plate 11, a screw rod 14 is arranged in the limiting groove 13, one end of the screw rod 14 close to the limiting groove 13 is connected with the inner wall of the limiting groove 13 through a bearing, a second bevel gear 15 is fixedly sleeved on the outer wall of one end of the screw rod 14 close to the third supporting plate 6, the second bevel gear 15 is arranged at the bottom of the first bevel gear 10, the second bevel gear 15 is meshed with the first bevel gear 10, a threaded sleeve plate 16 is connected with the outer wall of one end of the screw rod 14 far away from the second bevel gear 15 through threads, the threaded sleeve plate 16 is contacted with the inner wall of the limiting groove 13, one end of the threaded sleeve plate 16 far away from the screw rod 14 penetrates through the limiting groove 13 and extends to the outside of the limiting groove 13, a mechanical claw 17 is fixedly arranged at one end of the threaded sleeve plate 16 far away from the fixing plate 11, two first belt pulleys 18 are arranged at the top of the box body 1, a first belt 19 is arranged between the two first belt pulleys 18, and the two first belt pulleys 18 are connected through the first belt 19, two first belt pulleys 18 all are connected through pivot and 1 top of box, and the pivot on two first belt pulleys 18 all runs through box 1 and respectively with 2 top fixed connection of two first backup pads, 1 top of box is equipped with first motor 19, first motor 19 is fixed to be set up in one of them first belt pulley 18 top, and one side that two fixed plates 11 kept away from mutually is equipped with vertical regulation structure, vertical regulation structure is fixed to be set up inside box 1.

Further, vertically adjust the structure and include two threaded rods 20, two threaded rods 20 set up in the one side that two fixed plates 11 kept away from mutually, 20 both ends of threaded rod all are connected with 1 inner chamber top of box and bottom respectively through the bearing, 20 bottom outer wall threaded connection of threaded rod has screw thread seat 21, screw thread seat 21 one side and 11 fixed connection of fixed plate, screw thread seat 21 opposite side contacts with 1 inner wall of box, 1 bottom of box is equipped with two second belt pulleys 22, is equipped with second belt 23 between two second belt pulleys 22, and two second belt pulleys 22 pass through second belt 23 and connect, 1 bottom of box is equipped with second motor 23, second motor 23 is fixed to be set up in one of them second belt pulley 22 bottom, and the user of being convenient for treats the height of test piece and adjusts.

Furthermore, two positioning cavities 24 are respectively arranged inside the first supporting plate 2 and the second supporting plate 4, the two positioning cavities 24 are respectively arranged at two sides of the first groove 3 and the second groove 5, an L-shaped positioning rod 25 is arranged in the positioning cavity 24, a lug 26 is fixedly arranged at the top end of the L-shaped positioning rod 25, the bottom parts of the first supporting plate 2 and the second supporting plate 4 close to one side of the positioning cavity 24 are both provided with a communication port 27, the bottom ends of the L-shaped positioning rods 25 penetrate through the positioning cavity 24 and extend to the bottom of the positioning cavity 24, the two L-shaped positioning rods 25 on the first supporting plate 2 are respectively fixedly connected with the two sides of the bottom end of the second supporting plate 4, two L-shaped positioning rods 25 on the second supporting plate 4 are respectively fixedly connected with two sides of the bottom end of the two third supporting plates 6, so that the stability of the first supporting plate 2, the second supporting plate 4 and the third supporting plates 6 during rotation is enhanced.

Furthermore, 1 front side of box articulates there are two guard gates, is convenient for place and take out and wait to test the piece.

Further, the bottom of the inner cavity of the box body 1 is fixedly provided with a simulation plate 28, and the simulation plate 28 is arranged between the two mechanical claws 17, so that the accuracy of the experiment is improved.

Furthermore, the four corners of the bottom of the box body 1 are fixedly provided with supporting legs, so that the stability of the whole structure is enhanced.

The implementation scenario is specifically as follows:

when the utility model is used, a user punches a card to place a test piece in the box body 1 through the protective door, then the first motor 19 is started, the first motor 19 drives the two first supporting plates 2 to rotate through the first belt 19 and the two first belt pulleys 18, the two first supporting plates 2 drive the second supporting plate 4 to rotate through the matching of the sliding block 8 and the sliding groove 7 in the first groove 3 when rotating, the second supporting plate 4 drives the third supporting plate 6 to rotate through the matching of the sliding block 8 and the sliding groove 7 in the second groove 5 when rotating, and the total stability of the first supporting plate 2, the second supporting plate 4 and the third supporting plate 6 in the rotating process is improved through the arrangement of the L-shaped positioning rod 25, the first bevel gear 10 is also driven to rotate when the third supporting plate 6 rotates, the first bevel gear 10 drives the screw rod 14 to rotate through the meshed second bevel gear 15, the screw 14 drives the screw sleeve plate 16 limited by the limiting groove 13 and the mechanical claw 17 thereon to move when rotating, so that the mechanical claw 17 contacts with a to-be-tested piece and is grabbed and fixed, then the second motor 23 is started, the second motor 23 drives the two threaded rods 20 to rotate through the second belt 23 and the two second belt pulleys 22, the two threaded rods 20 drive the threaded seat 21 limited by the inner wall of the box body 1 to move upwards when rotating, the threaded seat 21 also drives the fixing plate 11 to move upwards when moving upwards, and the fixing plate 11 also drives the third support plate 6 to move upwards and be embedded in the second groove 5 on the second support plate 4 in the process of moving upwards, then drives the second support plate 4 to be embedded in the first groove 3 on the first support plate 2, and enables the first support plate 2, the second support plate 4 and the third support plate 6 to be in a connected and matched rotating state all the time through the arrangement of the slide block 8 and the slide groove 7, after the longitudinal position is adjusted, the mechanical claw 17 loosens the to-be-tested piece, so that the to-be-tested piece is subjected to falling test from high altitude, the falling resistance degree of the to-be-tested piece is tested, the longitudinal and transverse adjustment of the whole structure is only driven by the first motor 19 and the second motor 23, the efficiency is high, and the manufacturing cost is low.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a drop testing arrangement convenient to height-adjusting, includes box (1), its characterized in that: the top of the inner cavity of the box body (1) is provided with two first supporting plates (2), the two first supporting plates (2) are symmetrically arranged about the central axis of the box body (1), the first supporting plates (2) are connected with the top of the inner cavity of the box body (1) through bearings, the bottom of each first supporting plate (2) is provided with a first groove (3), a second supporting plate (4) is arranged in each first groove (3), the bottom end of each second supporting plate (4) penetrates through each first groove (3) and extends to the bottom of each first supporting plate (2), the bottom of each second supporting plate (4) is provided with a second groove (5), a third supporting plate (6) is arranged in each second groove (5), the bottom end of each third supporting plate (6) penetrates through each second groove (5) and extends to the bottom of each second supporting plate (4), sliding grooves (7) are formed in each first groove (3) and each second groove (5), the sliding grooves (7) are internally provided with sliding blocks (8), the two sliding blocks (8) on the first groove (3) are respectively fixedly connected with two sides of the top end of the second supporting plate (4), the two sliding blocks (8) on the second groove (5) are respectively fixedly connected with two sides of the top end of the two third supporting plates (6), the outer wall of the bottom end of each third supporting plate (6) is sleeved with a sleeve (9), the sleeve (9) is connected with the outer wall of the bottom end of each third supporting plate (6) through a bearing, the bottom of each third supporting plate (6) is fixedly provided with a first bevel gear (10), the bottom of each third supporting plate (6) is provided with a fixed plate (11), the top of each fixed plate (11) is fixedly provided with a connecting rod (12), the top of each connecting rod (12) is fixedly connected with one side of the corresponding sleeve (9), the top of each fixed plate (11) is provided with a limiting groove (13), and each limiting groove (13) is arranged on one side, far away from the fixed plate (11), of each connecting rod (12), one end, far away from the third supporting plate (6), of the limiting groove (13) penetrates through the fixing plate (11), a screw rod (14) is arranged inside the limiting groove (13), one end, close to the limiting groove (13), of the screw rod (14) is connected with the inner wall of the limiting groove (13) through a bearing, a second bevel gear (15) is fixedly sleeved on the outer wall of one end, close to the third supporting plate (6), of the screw rod (14), the second bevel gear (15) is arranged at the bottom of the first bevel gear (10), the second bevel gear (15) is meshed with the first bevel gear (10), a threaded sleeve plate (16) is in threaded connection with the outer wall of one end, far away from the screw rod (14), of the threaded sleeve plate (16) is in contact with the inner wall of the limiting groove (13), one end, far away from the screw rod (14), of the threaded sleeve plate (16) penetrates through the limiting groove (13) and extends to the outside of the limiting groove (13), a mechanical claw (17) is fixedly arranged at one end of the threaded sleeve plate (16) far away from the fixed plate (11), the top of the box body (1) is provided with two first belt pulleys (18), a first belt (19) is arranged between the two first belt pulleys (18), the two first belt pulleys (18) are connected through the first belt (19), the two first belt pulleys (18) are connected with the top of the box body (1) through rotating shafts, the rotating shafts on the two first belt pulleys (18) penetrate through the box body (1) and are fixedly connected with the tops of the two first supporting plates (2) respectively, the top of the box body (1) is provided with a first motor (30), the first motor (30) is fixedly arranged at the top of one of the first belt pulleys (18), one side, far away from the two fixing plates (11), of the first motor is provided with a longitudinal adjusting structure, and the longitudinal adjusting structure is fixedly arranged inside the box body (1).

2. The drop test device of claim 1, wherein the height of the drop test device is adjustable by: the longitudinal adjusting structure comprises two threaded rods (20), the two threaded rods (20) are arranged on one sides of the two fixing plates (11) which are far away from each other, two ends of the threaded rod (20) are respectively connected with the top and the bottom of the inner cavity of the box body (1) through bearings, the outer wall of the bottom end of the threaded rod (20) is in threaded connection with a threaded seat (21), one side of the threaded seat (21) is fixedly connected with the fixed plate (11), the other side of the threaded seat (21) is contacted with the inner wall of the box body (1), two second belt wheels (22) are arranged at the bottom of the box body (1), a second belt (29) is arranged between the two second belt wheels (22), the two second belt wheels (22) are connected through the second belt (29), the bottom of the box body (1) is provided with a second motor (23), and the second motor (23) is fixedly arranged at the bottom of one of the second pulleys (22).

3. The drop test device of claim 1, wherein the height of the drop test device is adjustable by: two positioning cavities (24) are respectively arranged in the first supporting plate (2) and the second supporting plate (4), the two positioning cavities (24) are respectively arranged at two sides of the first groove (3) and the second groove (5), an L-shaped positioning rod (25) is arranged in the positioning cavity (24), a lug (26) is fixedly arranged at the top end of the L-shaped positioning rod (25), one sides of the bottoms of the first supporting plate (2) and the second supporting plate (4) close to the positioning cavity (24) are respectively provided with a communicating opening (27), the bottom end of the L-shaped positioning rod (25) penetrates through the positioning cavity (24) and extends to the bottom of the positioning cavity (24), two L-shaped positioning rods (25) on the first supporting plate (2) are respectively fixedly connected with the two sides of the bottom end of the second supporting plate (4), and two L-shaped positioning rods (25) on the second supporting plate (4) are respectively fixedly connected with two sides of the bottom end of the two third supporting plates (6).

4. The drop test device of claim 1, wherein the height of the drop test device is adjustable by: the front side of the box body (1) is hinged with two protective doors.

5. The drop test device of claim 1, wherein the height of the drop test device is adjustable by: the bottom of the inner cavity of the box body (1) is fixedly provided with a simulation plate (28), and the simulation plate (28) is arranged between the two mechanical claws (17).

6. The drop test device of claim 1, wherein the height of the drop test device is adjustable by: supporting legs are fixedly arranged at four corners of the bottom of the box body (1).