CN223796357U - Pulling force detection device for physical experiments - Google Patents

Abstract

The utility model discloses a tension detection device for physical experiments, which relates to the technical field of physical experiment equipment and comprises a base, wherein a mounting plate is fixedly connected to the rear side of the top of the base, a mounting groove is formed in the front surface of the mounting plate, a tension mechanism is arranged at the top of the mounting plate, a first fixing shell is arranged at the front side of the outer wall of the tension mechanism, a tension sensor is fixedly connected to the top of the base close to the front side of the mounting plate, a second fixing shell is fixedly connected to the top of the tension sensor through a pull rod, clamping fixing assemblies are arranged at the left ends of the first fixing shell and the second fixing shell in a mirror image mode, locking assemblies are arranged at the front sides of the left ends of the first fixing shell and the second fixing shell close to the clamping fixing assemblies, and a display screen is arranged at the left side of the top of the base close to the tension sensor. According to the utility model, the two ends of the measuring material are respectively clamped and fixed through the clamping and fixing assembly, and the knob is limited and clamped by operating the locking assembly, so that the unexpected falling of the measuring material is prevented.

Description

Pulling force detection device for physical experiments

Technical Field

The utility model relates to the technical field of physical experiment equipment, in particular to a tension detection device for physical experiments.

Background

In physical experiments, it is often necessary to perform multiple experiments on a material to determine properties of the material, and to measure tension, that is, tension that a material can bear or tension that is required to deform, using a tension detection device. The following problems exist in the prior art:

When the fixed measuring material is subjected to tension detection in the existing tension detection device, the influence of external factors is easy to occur in the process, the tension detection device has no good fixing capacity, accidental falling of the measuring material is easy to occur, and in the process of measuring tension in a physical experiment, the tension detection device has no good stabilizing effect in work, so that the tension born by the measuring material is unstable.

Disclosure of utility model

The utility model provides a tension detection device for physical experiments, which aims to solve the problems in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a pulling force detection device for physical experiments, includes the base, the top rear side fixedly connected with mounting panel of base, the mounting groove has been openly seted up to the mounting panel, the top of mounting panel is provided with pulling force mechanism, just pulling force mechanism's outer wall bottom runs through to the inside of mounting groove, pulling force mechanism's outer wall front side is provided with fixed shell one, the front side fixedly connected with tension sensor that the base top is close to the mounting panel, tension sensor's top passes through pull rod fixedly connected with fixed shell two, fixed shell one and fixed shell two mirror images set up on same vertical line, the equal mirror image of left end of fixed shell one and fixed shell two is provided with the centre gripping fixed subassembly, two the outer wall right side of centre gripping fixed subassembly runs through respectively to the inside of fixed shell one and fixed shell two, the left side that the fixed shell one and fixed shell two are close to the centre gripping fixed subassembly all is provided with locking subassembly, the top of base is close to tension sensor's left side and is provided with the display screen, tension sensor passes through wire and the electric connection of display screen, back bottom fixedly connected with battery box, the right side switch end is provided with the mounting panel.

The clamping and fixing assembly comprises a bidirectional screw rod, a knob, two clamping plates and two moving blocks, wherein the left end of the bidirectional screw rod is fixedly connected with the middle part of the knob, the outer walls of the two moving blocks are respectively and equidistantly arranged on the left side and the right side of the bidirectional screw rod, the outer walls of the bidirectional screw rod penetrate through the left end and the right end of the two moving blocks and are in threaded connection, the bottoms of the two clamping plates are respectively and fixedly connected with the tops of the two moving blocks, the front end and the rear end of the two moving blocks are respectively and fixedly connected with a first sliding block, and a plurality of rubber tooth pads are respectively and equidistantly arranged on the opposite surfaces of the two clamping plates.

The technical scheme of the utility model is further improved in that the right ends of the outer walls of the two bidirectional screws respectively penetrate through the right ends of the first fixing shell and the second fixing shell and are in rotary connection, sliding grooves are respectively formed in the front side and the rear side of the inner walls of the first fixing shell and the second fixing shell, and the outer wall of the first sliding block is in sliding connection with the inner wall of the sliding groove.

The technical scheme of the utility model is further improved in that the locking assembly comprises a connecting plate, a clamping plate, two air bags and a second sliding block, wherein a moving groove is formed in the top of the connecting plate, a clamping groove which penetrates up and down is formed in the rear end of the clamping plate, the top of the second sliding block is fixedly connected to the bottom of the clamping plate, the outer wall of the second sliding block is in sliding connection with the inner wall of the moving groove, and the far ends of the two air bags are fixedly connected to the left side and the right side of the clamping groove.

The technical scheme of the utility model is further improved in that the right end of the connecting plate is fixedly connected with the front side of the two left ends of the fixing shell, the inner wall of the clamping groove is clamped with the front side of the outer wall of the knob, and the opposite surfaces of the two air bags are respectively overlapped with the surface of the knob.

The technical scheme of the utility model is further improved in that the tension mechanism comprises a stepping motor, a lead screw, a bearing, a movable block, a fixed plate, two limiting blocks and two sliding rods, wherein an output shaft of the stepping motor is fixedly connected with the top of the lead screw, the bottom of the outer wall of the lead screw is rotationally connected with the inside of the bearing, the outer wall of the lead screw penetrates through the upper end and the lower end of the movable block and is in threaded connection with the upper end and the lower end of the movable block, the front end of the outer wall of the movable block penetrates through the inside of a mounting groove and is fixedly connected with the middle side of the back of the fixed plate, the front ends of the two limiting blocks are respectively fixedly connected with the left side and the right side of the back of the fixed plate, communication holes which are vertically communicated are formed in the middle parts of the two limiting blocks, and the middle parts of the limiting blocks are sleeved with the outer wall of the sliding rods through the communication holes.

The technical scheme of the utility model is further improved in that the bottom of the stepping motor is fixedly connected to the top of the mounting plate, the bottom of the bearing is fixedly connected to the bottom of the mounting groove, the bottoms of the two sliding rods are respectively and fixedly connected to the left side and the right side of the top of the base, which are close to the mounting plate, and the front end of the fixing plate is fixedly connected with the rear end of the first fixing shell.

The technical scheme of the utility model is further improved in that semicircular grooves are respectively formed in the left side and the right side of the inner wall of the communication hole, balls are arranged on the inner walls of the two semicircular grooves, grooves which are communicated up and down are formed in the outer side, close to the balls, of the outer wall of the sliding rod, and the outer wall of the balls is in lap joint with the inner wall of the grooves.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. The utility model provides a tension detection device for physical experiments, which adopts the cooperation between a first fixing shell, a second fixing shell, a clamping and fixing assembly and a locking assembly, respectively clamps and fixes two ends of a measured material through the clamping and fixing assemblies on the first fixing shell and the second fixing shell, and after the fixing is completed, the clamping plate is used for limiting and clamping a knob in the clamping and fixing assembly through a clamping groove through operating the locking assembly, so that the unexpected falling of the measured material is prevented, the problem that the fixed measured material is easily influenced by external factors when the tension detection device is used for detecting the tension, the problem that the unexpected falling of the measured material is easily caused due to no good fixing capability in the tension detection device is solved, and the beneficial effect of effectively increasing the clamping stability of the material is achieved.

2. The utility model provides a tension detection device for physical experiments, which adopts the cooperation between a mounting plate, a mounting groove and a tension mechanism, when a measurement material is moved upwards and pulled by the tension mechanism, two side limiting blocks in the tension mechanism roll along the surface of a first fixed shell through balls, so that the smoothness of the pulling of the material is improved, the stability of the measurement material in bearing tension is ensured, the problem that the tension born by the measurement material is unstable due to the fact that the tension detection device has no good stabilizing effect in working in the measurement of the tension in the physical experiments is solved, and the beneficial effect of ensuring the stability of the measurement material in bearing tension is achieved.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of a tensile force detection device for physical experiments;

FIG. 2 is a schematic perspective view of a clamping and fixing assembly according to the present utility model;

FIG. 3 is a schematic perspective view of a locking assembly according to the present utility model;

FIG. 4 is a schematic perspective view of a tension mechanism according to the present utility model;

FIG. 5 shows a stopper according to the present utility model schematic cross-sectional view of a three-dimensional structure.

1, A base, 2, a mounting plate, 3, a mounting groove, 4, a tension mechanism, 41, a stepping motor, 42, a screw rod, 43, a bearing, 44, a movable block, 441, a fixed plate, 45, a limiting block, 450, a communication hole, 4501, a semicircular groove, 451, a ball, 46, a sliding rod, 460, a groove, 5, a tension sensor, 6, a first fixed shell, 7, a second fixed shell, 701, a sliding groove, 8, a clamping and fixing component, 81, a bi-directional screw rod, 82, a knob, 83, a clamping plate, 84, a movable block, 85, a first sliding block, 86, a rubber tooth pad, 9, a locking component, 91, a connecting plate, 910, a movable groove, 92, a clamping plate, 920, a clamping groove, 93, an airbag, 94, a second sliding block, 10, a display screen, 11, a battery box, 12 and a switch.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the present utility model easy to understand, the present utility model is further described below with reference to the specific embodiments:

As shown in fig. 1, the utility model provides a tension detection device for physical experiments, which comprises a base 1, wherein the rear side of the top of the base 1 is fixedly connected with a mounting plate 2, the front side of the mounting plate 2 is provided with a mounting groove 3, the top of the mounting plate 2 is provided with a tension mechanism 4, the bottom of the outer wall of the tension mechanism 4 penetrates into the mounting groove 3, the front side of the outer wall of the tension mechanism 4 is provided with a first fixing shell 6, the top of the base 1 is close to the front side of the mounting plate 2 and is fixedly connected with a tension sensor 5, the top of the tension sensor 5 is fixedly connected with a second fixing shell 7 through a pull rod, the first fixing shell 6 and the second fixing shell 7 are arranged on the same vertical line in a mirror image manner, the left ends of the first fixing shell 6 and the second fixing shell 7 are respectively provided with a clamping fixing assembly 8 in a mirror image manner, the right sides of the outer walls of the two clamping fixing assemblies 8 penetrate into the first fixing shell 6 and the second fixing shell 7 respectively, the left ends of the first fixing shell 6 and the second fixing shell 7 are respectively provided with a locking assembly 9, the top of the base 1 is close to the front side of the tension sensor 5, the left side of the base 1 is provided with a display screen 10, the tension sensor 5 is close to the front side of the tension sensor 2, the bottom of the battery 2 is electrically connected with a right mounting plate 12 through a wire, and a switch 12 is fixedly connected with the bottom of the battery 2;

Set up pulling force mechanism 4, tension sensor 5, fixed shell one 6, fixed shell two 7, centre gripping fixed subassembly 8, locking subassembly 9 and display screen 10, centre gripping fixed is carried out the material of survey through the centre gripping fixed subassembly 8 on fixed shell one 6 and the fixed shell two 7, and the locking subassembly 9 is operated again and is locked it, the effectual steadiness of increasing material centre gripping, at last carries out the tensile test through the cooperation of pulling force mechanism 4 and tension sensor 5 to the material.

As shown in fig. 2, the utility model provides a tension detecting device for physical experiments, which adopts the technical scheme that a clamping and fixing assembly 8 comprises a bidirectional screw rod 81, a knob 82, two clamping plates 83 and two moving blocks 84, wherein the left end of the bidirectional screw rod 81 is fixedly connected with the middle part of the knob 82, the outer walls of the two moving blocks 84 are respectively equidistantly arranged at the left side and the right side of the bidirectional screw rod 81, the outer walls of the bidirectional screw rod 81 penetrate through the left end and the right end of the two moving blocks 84 and are in threaded connection, the bottoms of the two clamping plates 83 are respectively fixedly connected with the tops of the two moving blocks 84, the front end and the rear end of the two moving blocks 84 are respectively fixedly connected with a first sliding block 85, the clamping plates 83 on two sides can be subjected to closing or expanding movement by rotating the bidirectional screw rod 81, a plurality of rubber tooth pads 86 are respectively arranged on opposite surfaces of the two clamping plates 83 in an equidistant array, the right ends of the outer walls of the two bidirectional screw rod 81 penetrate through the first fixed shell 6 and the right end of the second fixed shell 7 and are in rotary connection, the front side and the rear side of the inner walls of the first fixed shell 6 and the inner walls of the second fixed shell 7 are respectively provided with sliding grooves 701, the outer walls of the first sliding blocks 85 are respectively, the sliding grooves 85 are fixedly connected with the inner walls of the sliding grooves 85 are in sliding grooves, and the sliding grooves 85 slide tracks are respectively along the sliding grooves 85.

As shown in fig. 3, the utility model provides a tension detecting device for physical experiments, which adopts the technical scheme that a locking assembly 9 comprises a connecting plate 91, a clamping plate 92, two air bags 93 and a second slider 94, wherein a moving groove 910 is formed in the top of the connecting plate 91, a clamping groove 920 which penetrates up and down is formed in the rear end of the clamping plate 92, the top of the second slider 94 is fixedly connected to the bottom of the clamping plate 92, the outer wall of the second slider 94 is slidably connected with the inner wall of the moving groove 910, one ends, far away from the two air bags 93, of the two air bags are fixedly connected to the left side and the right side of the clamping groove 920, the right end of the connecting plate 91 is fixedly connected with the front side of the left end of a fixed shell II 7, the inner wall of the clamping groove 920 is clamped with the front side of the outer wall of the knob 82, the opposite surfaces of the two air bags 93 are overlapped with the surface of the knob 82, the clamping plate 92 slides along the moving groove 910 through the second slider 94, and the clamping plate 92 is clamped on the outer surface of the knob 82 through the clamping groove 920, so that the knob 82 is limited and positioned, and the phenomenon that materials fall off due to external influences is avoided.

As shown in fig. 4, the utility model provides a tension detecting device for physical experiments, which comprises a tension mechanism 4, a stepping motor 41, a screw rod 42, a bearing 43, a movable block 44, a fixed plate 441, two limiting blocks 45 and two sliding rods 46, wherein an output shaft of the stepping motor 41 is fixedly connected with the top of the screw rod 42, the bottom of the outer wall of the screw rod 42 is rotationally connected with the inside of the bearing 43, the outer wall of the screw rod 42 penetrates through the upper end and the lower end of the movable block 44 and is in threaded connection with each other, the front end of the outer wall of the movable block 44 penetrates through the inside of a mounting groove 3 and is fixedly connected with the middle side of the back surface of the fixed plate 441, the front ends of the two limiting blocks 45 are respectively fixedly connected with the left side and the right side of the back surface of the fixed plate 441, communication holes 450 which are vertically penetrated are respectively formed in the middle parts of the two limiting blocks 45 are sleeved with the outer walls of the sliding rods 46 through the communication holes 450, when the screw rod 42 rotates, the two limiting blocks 45 on two sides of the fixed plate 441 slide along the 46, the moving track of the fixed shell 6 is limited, the material is horizontally pulled, the bottom of the stepping motor 41 is fixedly connected with the top of the mounting plate 2, the bottom of the fixed shell 43 is fixedly connected with the bottom of the bearing 3, the bottom of the fixed shell 6 is fixedly connected with the bottom of the sliding rod 2, and the bottom of the fixed shell 6 is fixedly connected with the bottom of the upper end of the base 1.

As shown in fig. 5, the utility model provides a tension detecting device for physical experiments, which has the technical scheme that semicircular grooves 4501 are respectively formed on the left side and the right side of the inner wall of a communication hole 450, balls 451 are respectively arranged on the inner walls of the two semicircular grooves 4501, grooves 460 which are penetrated up and down are formed on the outer wall of a sliding rod 46 and are close to the outer sides of the balls 451, the outer walls of the balls 451 are overlapped with the inner walls of the grooves 460, and when a limiting block 45 slides along the outer walls of the sliding rod 46 through the communication hole 450, the balls 451 are driven to roll along the grooves 460, so that the smoothness of sliding of the limiting blocks 45 on the two sides is improved, and the stability of tension of a measured material is ensured.

The working principle of the tension detecting device for physical experiments is specifically described below.

As shown in fig. 1-5, when the tension of the measured material is detected in the physical experiment, firstly, a battery is installed in the battery box 11 to provide power for the stepping motor 41, the tension sensor 5 and the display screen 10, firstly, one end of the measured material is placed between two clamping plates 83 on the second fixed shell 7, then, through rotating the knob 82, the bidirectional screw 81 is driven to rotate, the clamping plates 83 on two sides are enabled to move inwards through the moving block 84, the lower end of the measured material is clamped and fixed, the rubber tooth pad 86 is tightly attached to the outer wall of the measured material, so that the clamping stability is improved, then, the clamping fixing assembly 8 on the first fixed shell 6 is operated to clamp and fix the upper end of the measured material in the same step mode, then, the upper clamping plate 92 and the lower clamping plate 92 are sequentially pushed backwards in the moving groove 910 through the sliding block 94, the inner wall of the clamping groove is clamped at the front end of the outer wall of the knob 82, the outer surface of the knob 82 is enabled to be extruded and attached to the outer surface of the knob 82, the rocking of the knob 82 is further avoided from being influenced by the outside, then, the button 82 is enabled to be pressed and fixed by the button 12, the motor is enabled to clamp the upper clamping plate 92, the upper clamping plate 92 and the second clamping plate 94 is enabled to move backwards in the moving direction of the moving groove 94 in the moving groove 910, the moving direction of the first fixed shell 45 is enabled to move the rolling plate 45, and the upper end is enabled to move the rolling force sensor 45 is enabled to move upwards through the first fixed shell 45, and the tension sensor 45 is enabled to move the upper end and the tension sensor 45 is driven to move upwards through the upper rotating and is driven to move the upper plate 45, and is driven, and is enabled to move the upper 4, and is driven.

The specific types and structures of the stepper motor 41, the tension sensor 5 and the display screen 10 are all existing products, and the specific circuit connection structures and control relations between the battery in the battery box and the stepper motor 41, the tension sensor 5 and the display screen 10 are all the prior art, and redundant description is omitted here.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (8)

1. The tension detection device for the physical experiment comprises a base (1), and is characterized in that a mounting plate (2) is fixedly connected to the rear side of the top of the base (1), a mounting groove (3) is formed in the front of the mounting plate (2), a tension mechanism (4) is arranged at the top of the mounting plate (2), the bottom of the outer wall of the tension mechanism (4) penetrates into the mounting groove (3), a first fixing shell (6) is arranged on the front side of the outer wall of the tension mechanism (4), a tension sensor (5) is fixedly connected to the front side of the top of the base (1) close to the mounting plate (2), a second fixing shell (7) is fixedly connected to the top of the tension sensor (5) through a pull rod, mirror images of the first fixing shell (6) and the second fixing shell (7) are arranged on the same vertical line, a clamping fixing assembly (8) is arranged at the left end of the first fixing shell (6) and the second fixing shell (7) in a mirror image mode, the right sides of the outer walls of the two clamping fixing assemblies (8) penetrate into the first fixing shell (6) and the second fixing shell (7) respectively, a tension sensor (5) is fixedly connected to the front side of the first fixing shell (6) and the second fixing shell (7) close to the left end (7) close to the first fixing shell (7) and the left end (10), the tension sensor (5) is electrically connected with a wiring end of the display screen (10) through a wire, a battery box (11) is fixedly connected with the bottom of the back of the mounting plate (2), and a switch (12) is arranged at the right end of the mounting plate (2).

2. The tension detecting device for physical experiments according to claim 1, wherein the clamping and fixing assembly (8) comprises a bidirectional screw rod (81), a knob (82), two clamping plates (83) and two moving blocks (84), the left end of the bidirectional screw rod (81) is fixedly connected with the middle part of the knob (82), the outer walls of the two moving blocks (84) are respectively equidistantly arranged on the left side and the right side of the bidirectional screw rod (81), the outer walls of the bidirectional screw rod (81) penetrate through the left end and the right end of the two moving blocks (84) and are in threaded connection, the bottoms of the two clamping plates (83) are respectively fixedly connected with the tops of the two moving blocks (84), the front end and the rear end of the two moving blocks (84) are respectively fixedly connected with a sliding block I (85), and a plurality of rubber tooth pads (86) are respectively equidistantly arranged on opposite surfaces of the two clamping plates (83).

3. The tension detecting device for physical experiments according to claim 2, wherein the right ends of the outer walls of the two bidirectional screws (81) penetrate through the right ends of the first fixing shell (6) and the second fixing shell (7) respectively and are connected in a rotating mode, sliding grooves (701) are formed in the front side and the rear side of the inner walls of the first fixing shell (6) and the second fixing shell (7) respectively, and the outer wall of the first sliding block (85) is connected with the inner walls of the sliding grooves (701) in a sliding mode.

4. The tension detecting device for physical experiments according to claim 1, wherein the locking assembly (9) comprises a connecting plate (91), a clamping plate (92), two air bags (93) and a second sliding block (94), a moving groove (910) is formed in the top of the connecting plate (91), a clamping groove (920) penetrating up and down is formed in the rear end of the clamping plate (92), the top of the second sliding block (94) is fixedly connected to the bottom of the clamping plate (92), the outer wall of the second sliding block (94) is in sliding connection with the inner wall of the moving groove (910), and two ends, far away from each other, of the two air bags (93) are fixedly connected to the left side and the right side of the clamping groove (920).

5. The tension detecting device for physical experiments according to claim 4, wherein the right end of the connecting plate (91) is fixedly connected with the front side of the left end of the second fixing shell (7), the inner wall of the clamping groove (920) is clamped with the front side of the outer wall of the knob (82), and the opposite surfaces of the two air bags (93) are respectively overlapped with the surface of the knob (82).

6. The tension detecting device for physical experiments according to claim 1, wherein the tension mechanism (4) comprises a stepping motor (41), a screw rod (42), a bearing (43), a movable block (44), a fixed plate (441), two limiting blocks (45) and two sliding rods (46), an output shaft of the stepping motor (41) is fixedly connected with the top of the screw rod (42), the bottom of the outer wall of the screw rod (42) is rotatably connected with the inside of the bearing (43), the outer wall of the screw rod (42) penetrates through the upper end and the lower end of the movable block (44) and is in threaded connection with each other, the front end of the outer wall of the movable block (44) penetrates through the inside of the mounting groove (3) and is fixedly connected with the middle side of the back of the fixed plate (441), the front ends of the two limiting blocks (45) are respectively fixedly connected with the left side and the right side of the back of the fixed plate (441), communicating holes (450) which are vertically communicated are formed in the middle of the two limiting blocks (45), and the middle of the limiting blocks is sleeved with the outer wall of the sliding rods (46) through the communicating holes (450).

7. The tension detecting device for physical experiments according to claim 6, wherein the bottom of the stepping motor (41) is fixedly connected to the top of the mounting plate (2), the bottom of the bearing (43) is fixedly connected to the bottom of the mounting groove (3), the bottoms of the two sliding rods (46) are respectively fixedly connected to the left side and the right side, close to the mounting plate (2), of the top of the base (1), and the front end of the fixing plate (441) is fixedly connected with the rear end of the first fixing shell (6).

8. The tension detecting device for physical experiments as defined in claim 6, wherein semicircular grooves (4501) are respectively formed in the left side and the right side of the inner wall of the communication hole (450), balls (451) are arranged on the inner walls of the two semicircular grooves (4501), grooves (460) penetrating up and down are formed in the outer walls of the sliding rods (46) close to the outer sides of the balls (451), and the outer walls of the balls (451) are in lap joint with the inner walls of the grooves (460).