Mounting shell of double-channel lock-in amplifier

Abstract

The utility model discloses a mounting shell of a dual-channel lock-in amplifier, relates to the technical field of dual-channel lock-in amplifiers, and aims to solve the problems that when the conventional dual-channel lock-in amplifier is used, the bottom of the conventional dual-channel lock-in amplifier is usually supported by adopting a supporting leg structure made of rubber, the supporting mode is single, and the flexibility is low. The rubber protection ring sleeves are arranged at the edges of the front end and the rear end of the main body in a sleeving manner; the outer supporting blocks are arranged on the two sides of the rubber protection ring sleeve, internal thread positioning columns are installed in the outer supporting blocks, screw rods with the height capable of being rotationally adjusted are arranged in the internal thread positioning columns, rubber suction cups are installed at the lower ends of the screw rods, and positioning clamping grooves are formed in the inner walls of the upper end and the lower end of the rubber protection ring sleeve. Positioning protruding strips are arranged above and below the front end and the rear end of the main body.

Description

Technical Field

[0001] The utility model relates to a packaging technology for a dual-channel lock-in amplifier, in particular to an installation shell for the dual-channel lock-in amplifier. Background Art

[0002] At present, the detection of weak electrical signals is becoming more and more important in the test and inspection of electrical equipment. Compared with analog lock-in amplifiers, dual-channel lock-in amplifiers have many outstanding advantages and are favored, becoming a hot spot in the research of weak signal detection. It can be seen from the existing dual-channel lock-in amplifiers that when in use, they are generally supported by the rubber foot structure at the bottom, which cannot achieve height adjustment and has poor stability. For example, it is easy to cause displacement during transportation and other moving conditions, and there is a possibility of collision. Utility Model Content

[0003] The utility model aims to provide a mounting housing for a dual-channel lock-in amplifier, so as to solve the problem in the background art that the existing dual-channel lock-in amplifier cannot be fixed or is inconvenient to fix during use.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0005] A mounting shell for a dual-channel lock-in amplifier comprises a main body for mounting the dual-channel lock-in amplifier, wherein rubber protective ring sleeves are sleeved on the edges of the front and rear ends of the main body, an outer support block is arranged on the side of the rubber protective ring sleeve, an internally threaded positioning column is installed inside the outer support block, a screw rod which can be rotatably adjusted in height is arranged inside the internally threaded positioning column, and a rubber suction cup is installed at the lower end of the screw rod.

[0006] In the above scheme, positioning grooves are provided on the inner walls of the upper and lower ends of the rubber protective ring sleeve, and positioning convex strips are provided on the upper and lower parts of the front and rear ends of the main body. The rubber protective ring sleeve is connected to the positioning convex strips on the main body through the positioning grooves.

[0007] Furthermore, a bubble level is installed on the upper end of the rubber protective ring sleeve at the front end.

[0008] Furthermore, a strip groove is arranged inside the screw rod, and scale lines are arranged inside the strip groove.

[0009] A nut is installed at the connection between the screw rod and the internal thread positioning column.

[0010] Compared with the prior art, the utility model has the beneficial effect that the housing is composed of rubber protective ring sleeves at the front and rear ends of the instrument and supporting members on both sides of the rubber protective ring sleeves. The rubber protective ring sleeves are fixed to the instrument by elastic sleeve connection, which is convenient for disassembly and assembly, and convenient for replacement after damage. It has a good protective effect on the corners of the main body, and when the instrument falls accidentally, the rubber protective ring sleeves at the front and rear ends can touch down in advance, play a certain buffering effect, so as to reduce the damage to the instrument and improve the functionality of the supporting structure. The supporting members on both sides of the rubber protective ring sleeve can flexibly adjust the height when in use. On the one hand, when there is a flatness defect on the table, the screw rod in the supporting member can be adjusted in conjunction with the bubble level, and the support height of the four legs can be adjusted one by one to achieve the leveling of the device. On the other hand, because the main body is mainly used with components such as oscilloscopes and detectors, when the table space is limited, the main body can be further raised so that the oscilloscope and detector components can be placed under the instrument for use to reduce the occupied space of the table, and the flexibility is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the rubber protective ring sleeve and the main body of the utility model in a separated state;

[0013] Figure 3 It is a front structural schematic diagram of the utility model;

[0014] Figure 4 It is a partial enlarged view of point A of the utility model;

[0015] In the figure: 1. Main body; 2. Control panel; 3. Rubber protective ring; 4. External support block; 5. Nut; 6. Screw rod; 7. Rubber suction cup; 8. Bubble level; 9. Positioning convex strip; 10. Positioning slot; 11. Internal thread positioning column; 12. Bar groove; 13. Scale line. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] See also Figure 1-4 The utility model provides an embodiment: a mounting housing of a dual-channel lock-in amplifier, comprising a main body 1, a control panel 2 is mounted on the front end surface of the main body 1. It also comprises a rubber protective ring sleeve 3, which is sleeved on the edges of the front end and the rear end of the main body 1;

[0018] The outer support block 4 is arranged on both sides of the rubber protective ring sleeve 3. An internal thread positioning column 11 is installed inside the outer support block 4. A rotatable height-adjustable screw rod 6 is arranged inside the internal thread positioning column 11. A rubber suction cup 7 is installed at the lower end of the screw rod 6.

[0019] See also Figure 2 , positioning grooves 10 are provided on the inner walls of the upper and lower ends of the rubber protective ring sleeve 3, and positioning convex strips 9 are provided on the upper and lower parts of the front and rear ends of the main body 1. The rubber protective ring sleeve 3 is sleeved and connected with the positioning convex strips 9 on the main body 1 through the positioning grooves 10. The rubber protective ring sleeve 3 is sleeved on the front and rear end surfaces of the main body 1 by relying on the elastic stretching of the rubber. When sleeved, the positioning grooves 10 on the inner wall of the rubber protective ring sleeve 3 are engaged with the positioning convex strips 9 on the main body 1 to ensure the fixing stability, convenient disassembly and assembly, and convenient replacement after damage. The rubber protective ring sleeve 3 has a good protective effect on the corners of the main body 1, and when the instrument falls accidentally, the rubber protective ring sleeves 3 at the front and rear ends can be lowered in advance, which has a certain buffering effect to reduce the damage to the instrument.

[0020] See also Figure 1 A bubble level 8 is installed on the upper end of the front rubber protective ring sleeve 3. After placing the main body 1, the flatness of the table surface can be observed through the bubble level 8. If there is a flatness defect on the table surface, the support height of the four legs can be adjusted one by one by adjusting the screw rod 6 on the rubber protective ring sleeve 3 to achieve leveling of the device.

[0021] See also Figure 4 A strip groove 12 is provided inside the screw rod 6, and a scale line 13 is provided inside the strip groove 12. When the screw rod 6 is adjusted, the height of the screw rod 6 can be intuitively judged through the scale line 13 on the internal strip groove 12, which is convenient for reference of other screw rods 6 for corresponding adjustment.

[0022] See also Figure 3 A nut 5 is installed at the connection between the screw rod 6 and the internal thread positioning column 11, and the screw rod 6 is locked and fixed by the nut 5 after adjustment.

[0023] Working principle: The supporting structure of the main body 1 is composed of rubber protective ring sleeves 3 at the front and rear ends and supporting components on both sides of the rubber protective ring sleeves 3, wherein the rubber protective ring sleeves 3 are sleeved on the front and rear end surfaces of the main body 1 by means of rubber elastic stretching. When sleeved, the positioning card grooves 10 on the inner wall of the rubber protective ring sleeves 3 are engaged with the positioning convex strips 9 on the main body 1 to ensure the stability of the fixation, and the disassembly and assembly are convenient, and it is convenient to replace after damage. The rubber protective ring sleeves 3 have a good protective effect on the corners of the main body 1, and when the instrument accidentally falls, the rubber protective ring sleeves 3 at the front and rear ends can be lowered in advance, playing a role A certain buffering effect can be achieved to reduce the damage to the instrument, and the supporting components on both sides of the rubber protective ring sleeve 3 can be flexibly adjusted in height during use. On the one hand, when there is a flatness defect on the table top, the bubble level 8 can be used to adjust the screw rod 6 in the supporting component, and the supporting height of the four legs can be adjusted one by one to achieve the leveling of the device. On the other hand, because the main body 1 is mainly used with components such as oscilloscopes and detectors, when the table space is limited, the main body 1 can be further raised so that the oscilloscope and detector components can be placed under the instrument for use, so as to reduce the space occupied by the table top, with high flexibility.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A dual-channel lock-in amplifier installation housing, comprising a main body (1) for installing the dual-channel lock-in amplifier, characterized in that: The edges of the front and rear ends of the main body (1) are sleeved with rubber protective ring sleeves (3), the side of the rubber protective ring sleeve (3) is provided with an external support block (4), the interior of the external support block (4) is provided with an internal thread positioning column (11), the interior of the internal thread positioning column (11) is provided with a screw rod (6) that can be rotatably adjusted in height, and the lower end of the screw rod (6) is provided with a rubber suction cup (7).

2. The installation housing of the dual-channel lock-in amplifier according to claim 1, characterized in that: Positioning slots (10) are provided on the inner walls of the upper and lower ends of the rubber protective ring sleeve (3), and positioning convex strips (9) are provided on the upper and lower parts of the front and rear ends of the main body (1). The rubber protective ring sleeve (3) is sleeve-connected with the positioning convex strips (9) on the main body (1) via the positioning slots (10).

3. The installation housing of the dual-channel lock-in amplifier according to claim 1, characterized in that: A bubble level (8) is installed on the upper end of the rubber protective ring sleeve (3) at the front end.

4. The mounting housing of the dual-channel lock-in amplifier according to claim 1, characterized in that: The screw rod (6) is provided with a strip groove (12) inside, and the strip groove (12) is provided with a scale line (13) inside.

5. The installation housing of the dual-channel lock-in amplifier according to claim 1, characterized in that: A nut (5) is installed at the connection between the screw rod (6) and the internal thread positioning column (11).

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