Portable test support convenient to fix

Abstract

The utility model discloses a portable testing support convenient to fix, belongs to the technical field of sensor testing, and aims to solve the problems that the testing support is not easy to fix when placed and is large in size and not easy to carry. The portable testing support comprises a base, a supporting stand column is fixedly connected to the center of the top face of the base, and a rotating groove is formed in the top end of the supporting stand column; a sliding cavity is formed in the bottom end of the supporting stand column, a fixing assembly is arranged on the inner surface of the sliding cavity, and a rotating assembly is arranged in the rotating groove. The rotary plate is pressed to enable the ground thorns to be inserted into the ground downwards, the limiting columns are inserted into the limiting holes through the second springs to fix the sliding plate, the screwing columns are rotated forwards or reversely to drive the worm and the worm gear to rotate, the L-shaped rod is unfolded or folded, the limiting columns are pressed to push the sliding plate to move upwards through the first springs, and the ground thorns are fixed. The rotating plate is pulled to rotate upwards, the test support is folded, and the problems that the test support is not easy to fix when placed, and the test support is large in size and not easy to carry are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensor testing, and in particular relates to a portable testing bracket which is convenient to fix. Background Art

[0002] High-precision temperature sensors are sensors that convert temperature into electrical quantity by using the law that various physical properties of materials change with temperature. Temperature sensors are the core part of temperature measuring instruments. There are many varieties. They can be divided into two categories according to the measurement method: contact and non-contact. According to the sensor material and electronic component characteristics, they can be divided into two categories: thermal resistors and thermocouples.

[0003] A portable temperature sensor test bracket with patent announcement number CN208537058U in the prior art comprises a base, the top of the base is connected to a support seat, a telescopic sleeve is connected to the center of the top of the support seat through a bearing, a telescopic rod is nested and connected in the telescopic sleeve, an adjusting screw is provided on one side of the telescopic sleeve, a positioning hole corresponding to the adjusting screw is provided on the telescopic rod, a cross bar is fixedly connected to the top of one side of the telescopic rod, a vertical rod is fixedly connected to the bottom of the cross bar, a cross plate is connected to the bottom of the vertical rod, side rods are connected through both sides of the cross plate, a clamping box is connected to the bottom of the side rod, a spring is provided between the side rod and the clamping box, the spring is wound around the outside of the side rod, and support rods are provided on both sides of the inner wall of the clamping box; however, the following deficiencies still exist in actual use: when the test bracket is placed on a relatively soft ground, it is easy to tip over, causing damage to the device, and the test bracket is large in size, not easy to carry and recycle, poor in portability, and will increase the work intensity of the staff.

[0004] Therefore, a portable test stand that is easy to fix is ​​needed to solve the problems in the prior art that the test stand is difficult to fix when placed and the test stand is large in size and difficult to carry. Utility Model Content

[0005] The purpose of the utility model is to provide a portable test stand that is convenient to fix, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable test stand that is easy to fix, comprising a base, a support column is fixedly connected to the center of the top surface of the base, a through hole is opened at the center of the top surface of the base, a rotation groove is opened at the top of the support column, a sliding cavity is opened at the bottom end of the support column, a fixed component is arranged on the inner surface of the sliding cavity, a rotating component is arranged inside the rotating groove, an L-shaped rod is arranged on the rotating component, a connecting block is fixedly connected to one side of the bottom surface of the transverse section of the L-shaped rod, and a clamping seat is fixedly connected to the bottom surface of the connecting block.

[0007] It should be noted in the scheme that the fixed component includes a sliding plate, a sliding groove, a rotating plate and a limiting hole. The outer surface of the sliding plate is slidably connected to the inner surface of the sliding cavity. There are two sliding grooves and they are respectively opened on both sides of the bottom of the outer surface of the supporting column. There are two rotating plates and they are symmetrically distributed. The two rotating plates are respectively hinged to the outer walls on both sides of the base. The limiting hole is opened at one end of the bottom of the outer surface of the supporting column. The two sides of the outer surface of the sliding plate are respectively hinged to the top surfaces of the two rotating plates through the sliding grooves. Connecting rods are provided. The center of the bottom end of the sliding plate is fixedly connected with a ground spike. A first spring is sleeved on the outer surface of the ground spike, the top of the first spring is fixedly connected to the bottom end of the sliding plate, the bottom of the first spring is fixedly connected to the top surface of the base, an installation cavity is opened inside the sliding plate, the inner wall of the installation cavity is slidably connected to a limiting plate, a second spring is fixedly connected to the outer wall of one end of the limiting plate, the end of the second spring away from the limiting plate is fixedly connected to an end wall inside the installation cavity, the center of the outer wall of the other end of the limiting plate is fixedly connected to a limiting column, and the end of the limiting column away from the limiting plate slides through one end of the outer surface of the sliding plate and is plugged into the limiting hole.

[0008] It is further worth explaining that the rotating assembly includes a rotating shaft and a mounting plate, the rotating shaft is rotatably connected between the two end walls inside the rotating groove, the mounting plate is fixedly connected to the top of one side of the outer surface of the supporting column, a worm gear is tightly sleeved on the outer surface of the rotating shaft, the top of the outer surface of the worm gear is fixedly connected to the bottom surface of the vertical section of the L-shaped rod, a worm is rotatably connected at the center of the top surface of the mounting plate, the bottom end of the worm passes through the top surface of the mounting plate and is coaxially fixedly connected to a screw column, and the worm wheel and worm are meshingly connected.

[0009] It should be further explained that an adjusting screw is threadedly inserted at the center of the outer wall at both ends of the clamping seat, and the two adjusting screws are symmetrically distributed. One end of the adjusting screw extends into the inside of the clamping seat and is coaxially rotatably connected to the clamping block.

[0010] As a preferred embodiment, the diameter of the through hole is smaller than the diameter of the sliding cavity and larger than the top diameter of the ground spike, and the through hole and the ground spike are coaxial.

[0011] As a preferred embodiment, a plurality of anti-slip grooves are provided on the bottom surface of the rotating plate, and an end of the limiting column away from the limiting plate is arranged as an arc surface.

[0012] Compared with the prior art, the portable test stand provided by the utility model is convenient to fix, which has at least the following beneficial effects:

[0013] (1) Through the action of the fixing component, the rotating plate is pressed to drive the sliding plate to move downward, so that the ground spike moves downward. When the bottom surface of the rotating plate contacts the ground, the ground spike is inserted into the ground. The limiting column is pushed by the second spring to insert into the limiting hole, thereby fixing the sliding plate and fixing the test bracket. The operation is simple and the problem of the test bracket being difficult to fix when placed is effectively avoided.

[0014] (2) Through the cooperation of the fixed component and the rotating component, the forward or reverse rotation of the screw column drives the worm to rotate synchronously. With the cooperation of the worm wheel and the worm, the L-shaped rod can be unfolded or folded. By pressing the limit column to separate it from the limit hole, the sliding plate is pushed upward under the action of the first spring, and then the rotating plate is pulled upward to complete the folding of the test bracket. The overall volume of the folded test bracket is smaller, which effectively avoids the problem of the test bracket being large and difficult to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the side cross-sectional structure of the base and the supporting column of the utility model;

[0017] Figure 3 This is a schematic diagram of the top side structure of the support column of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the utility model after being folded and stowed as a whole.

[0019] In the figure: 1. base; 2. supporting column; 3. through hole; 4. rotating groove; 5. sliding cavity; 6. fixing component; 61. sliding plate; 62. sliding groove; 63. rotating plate; 64. limiting hole; 65. connecting rod; 66. ground spike; 67. first spring; 68. mounting cavity; 69. limiting plate; 610. second spring; 611. limiting column; 7. rotating component; 71. rotating shaft; 72. worm gear; 73. mounting plate; 74. worm; 75. screw column; 8. L-shaped rod; 9. connecting block; 10. clamping seat; 11. adjusting screw; 12. clamping block. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] See also Figure 1-Figure 4The utility model provides a portable test bracket that is easy to fix, including a base 1, a supporting column 2 is fixedly connected at the center of the top surface of the base 1, a through hole 3 is opened at the center of the top surface of the base 1, a rotating groove 4 is opened at the top of the supporting column 2, a sliding cavity 5 is opened at the bottom end of the supporting column 2, a fixing component 6 is arranged on the inner surface of the sliding cavity 5, a rotating component 7 is arranged inside the rotating groove 4, an L-shaped rod 8 is arranged on the rotating component 7, a connecting block 9 is fixedly connected to one side of the bottom surface of the transverse section of the L-shaped rod 8, and a clamping seat 10 is fixedly connected to the bottom surface of the connecting block 9.

[0022] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth specifically explaining that the fixing assembly 6 includes a sliding plate 61, a sliding groove 62, a rotating plate 63 and a limiting hole 64. The outer surface of the sliding plate 61 is slidably connected to the inner surface of the sliding cavity 5. There are two sliding grooves 62 and they are respectively opened on both sides of the bottom of the outer surface of the supporting column 2. There are two rotating plates 63 and they are symmetrically distributed. The two rotating plates 63 are respectively hinged to the outer walls on both sides of the base 1. The limiting hole 64 is opened at one end of the bottom of the outer surface of the supporting column 2. The two sides of the outer surface of the sliding plate 61 are respectively hinged to the top surfaces of the two rotating plates 63 through the sliding grooves 62. A ground spike 66 is fixedly connected at the center of the bottom end of the sliding plate 61. The ground spike 66 6 is sleeved with a first spring 67, the top end of the first spring 67 is fixedly connected to the bottom end of the sliding plate 61, and the bottom end of the first spring 67 is fixedly connected to the top surface of the base 1. A mounting cavity 68 is opened inside the sliding plate 61, and the inner wall of the mounting cavity 68 is slidably connected to a limiting plate 69, and the outer wall of one end of the limiting plate 69 is fixedly connected to a second spring 610, and the end of the second spring 610 away from the limiting plate 69 is fixedly connected to an end wall inside the mounting cavity 68, and the center of the outer wall of the other end of the limiting plate 69 is fixedly connected to a limiting column 611, and the end of the limiting column 611 away from the limiting plate 69 slides through one end of the outer surface of the sliding plate 61 and is plugged into the limiting hole 64.

[0023] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth explaining in detail that the rotating assembly 7 includes a rotating shaft 71 and a mounting plate 73. The rotating shaft 71 is rotatably connected between the two end walls inside the rotating groove 4, and the mounting plate 73 is fixedly connected to the top of one side of the outer surface of the supporting column 2. A worm gear 72 is tightly sleeved on the outer surface of the rotating shaft 71, and the top of the outer surface of the worm gear 72 is fixedly connected to the bottom surface of the vertical section of the L-shaped rod 8. A worm 74 is rotatably connected at the center of the top surface of the mounting plate 73. The bottom end of the worm 74 passes through the top surface of the mounting plate 73 and is coaxially fixedly connected to a screw column 75. The worm wheel 72 and the worm 74 are meshingly connected.

[0024] Further as Figure 3As shown, it is worth explaining in detail that an adjusting screw 11 is threadedly inserted at the center of the outer wall of both ends of the clamping seat 10, and the two adjusting screws 11 are symmetrically distributed. One end of the adjusting screw 11 extends into the inside of the clamping seat 10 and is coaxially rotatably connected to a clamping block 12.

[0025] Further as Figure 2 As shown, it is worth explaining in detail that the diameter of the through hole 3 is smaller than the diameter of the sliding cavity 5 and larger than the top diameter of the ground spike 66, so that the bottom end of the first spring 67 is fixed to the top surface of the base 1, and the through hole 3 and the ground spike 66 are coaxial, so that the ground spike 66 can move in the through hole 3.

[0026] Further as Figure 1 and Figure 2 As shown, it is worth explaining in detail that a plurality of anti-slip grooves are provided on the bottom surface of the rotating plate 63 to increase the friction between the bottom surface of the rotating plate 63 and the ground and improve the overall stability of the device. The end of the limit column 611 away from the limit plate 69 is set as an arc surface to facilitate the limit column 611 to be better inserted into the limit hole 64, making it convenient for the staff to press the limit column 611.

[0027] In summary, when the device is in use, the base 1 of the device is first placed on the ground in the test area, and the staff presses down the two rotating plates 63 at the same time. When the rotating plates 63 rotate, the connecting rod 65 pulls the sliding plate 61 to move downward inside the sliding cavity 5 under the action of the hinge. When the sliding plate 61 moves downward, it drives the ground spikes 66 to move downward. At this time, the first spring 67 is compressed. When the side of the rotating plate 63 with the anti-slip groove rotates to contact the ground, the ground spikes 66 pass through the through hole 3 and then insert into the ground, limiting the position. Under the action of the second spring 610, the column 611 is inserted into the limiting hole 64 to fix the sliding plate 61 to complete the fixation of the test bracket. Then, the screw column 75 is rotated to drive the worm 74 to rotate. Under the meshing action, the worm 74 drives the worm wheel 72 to rotate and then drives the L-shaped rod 8 to rotate, so that the L-shaped rod 8 is unfolded. Finally, the sensor is placed between the two clamping blocks 12, and the two adjusting screws 11 are rotated to drive the two clamping blocks 12 closer to each other to complete the fixation of the sensor, effectively avoiding the problem that the test bracket is difficult to fix when placed.

[0028] When the test is completed, the screw column 75 is rotated in the reverse direction to drive the worm 74 to rotate, and the worm wheel 72 is driven to rotate through the meshing action, and then the L-shaped rod 8 is driven to rotate, and the L-shaped rod 8 is folded, and then the limit column 611 is pressed to separate it from the limit hole 64, thereby releasing the fixation of the sliding plate 61. Under the elastic action of the first spring 67, the sliding plate 61 is pushed to move upward in the sliding cavity 5. When the sliding plate 61 moves, the two rotating plates 63 are pulled upward by the connecting rod 65, and at the same time, the ground spikes 66 are driven to leave the ground, thereby realizing the folding of the test bracket. The overall volume of the folded test bracket is smaller, which effectively avoids the problem that the test bracket is large in volume and difficult to carry.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A portable test stand that is easy to fix, comprising a base (1), characterized in that: A support column (2) is fixedly connected at the center of the top surface of the base (1); a through hole (3) is provided at the center of the top surface of the base (1); a rotation groove (4) is provided at the top end of the support column (2); a sliding cavity (5) is provided at the bottom end of the support column (2); a fixed component (6) is provided on the inner surface of the sliding cavity (5); a rotation component (7) is provided inside the rotation groove (4); an L-shaped rod (8) is provided on the rotation component (7); a connecting block (9) is fixedly connected to one side of the bottom surface of the transverse section of the L-shaped rod (8); and a clamping seat (10) is fixedly connected to the bottom surface of the connecting block (9).

2. A portable test stand that is easy to fix according to claim 1, characterized in that: The fixing assembly (6) comprises a sliding plate (61), a sliding groove (62), a rotating plate (63) and a limiting hole (64). The outer surface of the sliding plate (61) is slidably connected to the inner surface of the sliding cavity (5). There are two sliding grooves (62) and they are respectively arranged on both sides of the bottom of the outer surface of the supporting column (2). There are two rotating plates (63) and they are symmetrically distributed. The two rotating plates (63) are respectively hinged to the outer walls on both sides of the base (1). The limiting hole (64) is arranged at one end of the bottom of the outer surface of the supporting column (2). The outer surfaces of the sliding plates (61) are respectively hinged with connecting rods (65) through the sliding grooves (62) and the top surfaces of the two rotating plates (63). The center of the bottom end of the sliding plate (61) is fixedly connected with a ground spike (66). The outer surface of the ground spike (66) A first spring (67) is sleeved, the top end of the first spring (67) is fixedly connected to the bottom end of the sliding plate (61), the bottom end of the first spring (67) is fixedly connected to the top surface of the base (1), the sliding plate (61) is provided with a mounting cavity (68), the inner wall of the mounting cavity (68) is slidably connected to a limiting plate (69), one end of the outer wall of the limiting plate (69) is fixedly connected to a second spring (610), one end of the second spring (610) away from the limiting plate (69) is fixedly connected to an end wall inside the mounting cavity (68), the other end of the limiting plate (69) is fixedly connected to a limiting column (611) at the center of the outer wall, the end of the limiting column (611) away from the limiting plate (69) slides through one end of the outer surface of the sliding plate (61) and is plugged into the limiting hole (64).

3. A portable test stand that is easy to fix according to claim 2, characterized in that: The rotating assembly (7) comprises a rotating shaft (71) and a mounting plate (73), wherein the rotating shaft (71) is rotatably connected between the two end walls inside the rotating groove (4), and the mounting plate (73) is fixedly connected to the top of one side of the outer surface of the supporting column (2). A worm wheel (72) is tightly sleeved on the outer surface of the rotating shaft (71), and the top of the outer surface of the worm wheel (72) is fixedly connected to the bottom surface of the vertical section of the L-shaped rod (8). A worm (74) is rotatably connected at the center of the top surface of the mounting plate (73), and the bottom end of the worm (74) passes through the top surface of the mounting plate (73) and is coaxially fixedly connected to a screw column (75), and the worm wheel (72) and the worm (74) are meshingly connected.

4. A portable test stand that is easy to fix according to claim 3, characterized in that: Adjusting screws (11) are threadedly inserted at the centers of the outer walls at both ends of the clamping seat (10), and the two adjusting screws (11) are symmetrically distributed. One end of the adjusting screw (11) extends into the interior of the clamping seat (10) and is coaxially rotatably connected to a clamping block (12).

5. A portable test stand that is easy to fix according to claim 4, characterized in that: The diameter of the through hole (3) is smaller than the diameter of the sliding cavity (5) and larger than the top diameter of the ground spike (66); the through hole (3) and the ground spike (66) are coaxial.

6. A portable test stand that is easy to fix according to claim 5, characterized in that: The bottom surface of the rotating plate (63) is provided with a plurality of anti-slip grooves, and the end of the limiting column (611) away from the limiting plate (69) is arranged as an arc surface.

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