Screw structure of screw air compressor

Abstract

The utility model discloses a screw structure of a screw air compressor, which comprises a mounting rod, a screw main body is arranged on one side of the mounting rod, a fixing mechanism is arranged between the screw main body and the mounting rod, the fixing mechanism comprises a mounting cylinder, and the mounting cylinder is in threaded penetrating connection with the mounting rod; the other end of the sliding rod is connected with the inner cavity of the mounting rod; the clamping plate is connected with an inner cavity of the clamping groove; the linkage assembly is arranged between the mounting cylinder and the sliding rod; and the positioning assembly is arranged in the sliding rod. By means of the arrangement mode that the installation cylinder, the sliding rod, the clamping plate, the linkage assembly and the positioning assembly are matched, the installation rod and the screw body can be connected together through rotation of the installation cylinder, the gear is limited on the key block, connection with the installation rod can be canceled by detaching the installation cylinder only by releasing positioning of the positioning assembly, and the installation cylinder can be detached conveniently. And the whole screw rod does not need to be disassembled, so that the screw rod is convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of screw air compressors, and in particular to a screw structure for a screw air compressor. Background Art

[0002] Screw air compressors are pre-configured, requiring only a single power supply and compressed air connection. They also feature a built-in cooling system, greatly simplifying installation. Screw air compressors consistently provide high-quality compressed air to various industries due to their high efficiency, maintenance-free operation, and high reliability. The screw compressor contains an internal screw compression assembly.

[0003] For example, CN216589100U discloses a high-efficiency air compressor screw. The gear used for transmission in this air compressor screw is fixedly connected to the screw. However, after long-term use, the gear may break or strip. In this case, the entire screw must be disassembled to replace the gear before the air compressor can continue to be used, which is quite inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a screw structure for a screw air compressor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screw structure for a screw air compressor, including a mounting rod, a key block fixedly connected to the top end of the mounting rod, and a gear slidably interlocking between the mounting rod and the key block;

[0006] A screw body is provided on one side of the mounting rod, and a fixing mechanism is provided between the screw body and the mounting rod. The fixing mechanism includes:

[0007] The mounting sleeve has external threads on the outer walls of both the screw body and the mounting rod. The mounting sleeve is threadedly fitted onto the outside of the screw body, and the mounting sleeve and the mounting rod are threadedly interlocked.

[0008] A sliding rod, wherein one end of the screw body is provided with a sliding groove, one end of the sliding rod is slidably inserted into the inner cavity of the sliding groove, and the other end of the sliding rod is slidably inserted into the inner cavity of the mounting rod;

[0009] A snap-fit ​​plate is fixedly connected to one end of a slide rod. The inner wall of the mounting rod is provided with a snap-fit ​​groove, and the snap-fit ​​plate is slidably inserted into the inner cavity of the snap-fit ​​groove.

[0010] A linkage component is disposed between the mounting cylinder and the slide rod;

[0011] A positioning component is disposed inside the slide rod and is used to limit the position of the mounting cylinder and the slide rod.

[0012] Preferably, the linkage component includes:

[0013] A sliding ring is provided, wherein an annular groove is formed on the inner wall of the mounting cylinder, and the sliding ring is located inside the annular groove;

[0014] The sliding rods are provided with one end fixedly connected to the inner wall of the sliding ring, and the other end of the sliding rods are fixedly connected to the top and bottom ends of the sliding rods respectively. The top and bottom ends of the inner wall of the sliding groove are provided with sliding grooves, and the sliding rods are slidably inserted into the inner cavity of the sliding groove.

[0015] Preferably, the positioning component includes:

[0016] The positioning block has a positioning groove at the top of the slide rod, a positioning hole at the top of the inner wall of the slide groove, the top of the positioning block is slidably inserted into the inner cavity of the positioning hole, and the bottom of the positioning block is slidably inserted into the inner cavity of the positioning groove.

[0017] A compression spring, which is located inside the positioning groove.

[0018] Preferably, one end of the compression spring is fixedly connected to the inner wall of the positioning groove, and the other end of the compression spring is fixedly connected to the positioning block.

[0019] Preferably, the positioning component further includes:

[0020] The limiting blocks are fixedly connected to both sides of the positioning block. The inner walls of the positioning groove are provided with limiting grooves on both sides. The limiting blocks are slidably inserted into the inner cavities of the limiting grooves.

[0021] Preferably, the top of the positioning block has an inclined surface, and the diameter of the positioning hole is longer than the width of the sliding groove.

[0022] The technical effects and advantages of this utility model are:

[0023] This invention utilizes a combination of an mounting cylinder, a sliding rod, a snap-fit ​​plate, a linkage component, and a positioning component. Rotation of the mounting cylinder connects the mounting rod to the screw body, limiting the gear on the key block. Simultaneously, the positioning component positions the mounting cylinder, preventing displacement during gear-driven rotation and potential installation failure. If the gear experiences tooth breakage or stripping, simply releasing the positioning component allows for disassembly of the mounting cylinder, severing the connection between it and the mounting rod, and replacing the gear without disassembling the entire screw, thus simplifying its use. Attached Figure Description

[0024] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 This is a schematic diagram of the overall front internal structure of this utility model.

[0026] Figure 3 This is a schematic diagram of the internal structure of the fixing mechanism of this utility model from the front.

[0027] Figure 4 This is a schematic diagram of the internal structure of the positioning component of this utility model from the front.

[0028] Figure 5 This is a top view of the fixing mechanism of this utility model.

[0029] In the diagram: 1. Mounting rod; 2. Key block; 3. Screw body; 4. Fixing mechanism; 41. Mounting cylinder; 42. Slide rod; 43. Snap-fit ​​plate; 44. Linkage assembly; 441. Sliding ring; 442. Sliding rod; 45. Positioning assembly; 451. Positioning block; 452. Compression spring; 453. Limiting block; 5. Gear. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] This utility model provides, for example Figure 1-5 The screw structure of a screw air compressor shown includes a mounting rod 1, a key block 2 fixedly connected to the top of the mounting rod 1, and a gear 5 slidably inserted between the mounting rod 1 and the key block 2. The key block 2 has a T-shaped cross section, which can limit the rotation of the gear 5 while also limiting the horizontal sliding of the gear 5.

[0032] Furthermore, a screw body 3 is provided on one side of the mounting rod 1, and a fixing mechanism 4 is provided between the screw body 3 and the mounting rod 1. The fixing mechanism 4 includes: a mounting cylinder 41, a sliding rod 42, a snap-fit ​​plate 43, a linkage assembly 44, and a positioning assembly 45. Both the outer walls of the screw body 3 and the mounting rod 1 are provided with external threads. The mounting cylinder 41 is threaded onto the outside of the screw body 3, and the mounting cylinder 41 is threadedly connected to the mounting rod 1. The screw body 3 and the mounting rod 1 can be connected together through the mounting cylinder 41. One end of the main body 3 is provided with a sliding groove, one end of the sliding rod 42 is slidably inserted into the inner cavity of the sliding groove, and the other end of the sliding rod 42 is slidably inserted into the inner cavity of the mounting rod 1; the snap-fit ​​plate 43 is fixedly connected to one end of the sliding rod 42, and the inner wall of the mounting rod 1 is provided with a snap-fit ​​groove, and the snap-fit ​​plate 43 is slidably inserted into the inner cavity of the snap-fit ​​groove; the linkage component 44 is disposed between the mounting cylinder 41 and the sliding rod 42; the positioning component 45 is disposed inside the sliding rod 42 and is used to limit the position of the mounting cylinder 41 and the sliding rod 42.

[0033] Specifically, the linkage component 44 includes a sliding ring 441 and a sliding rod 442. The inner wall of the mounting cylinder 41 is provided with an annular groove, and the sliding ring 441 is located inside the annular groove. One end of each of the multiple sliding rods 442 is fixedly connected to the inner wall of the sliding ring 441, and the other end of each of the multiple sliding rods 442 is fixedly connected to the top and bottom ends of the sliding rod 42, respectively. The top and bottom ends of the inner wall of the sliding groove are provided with sliding grooves. The sliding rod 442 is slidably inserted into the inner cavity of the sliding groove. When the mounting cylinder 41 rotates, the sliding ring 441 can drive the sliding rod 442 to move inside the sliding groove. At the same time, it can drive the sliding rod 42 to move inside the sliding groove, and make the locking plate 43 engage with the locking groove. Thus, when the gear 5 drives the mounting rod 1 to rotate, the locking plate 43 can drive the screw body 3 to rotate.

[0034] Specifically, the positioning component 45 includes: a positioning block 451, a compression spring 452, and a limiting block 453. The top of the slide rod 42 has a positioning groove, and the top of the inner wall of the groove has a positioning hole. The top of the positioning block 451 is slidably inserted into the inner cavity of the positioning hole, and the bottom of the positioning block 451 is slidably inserted into the inner cavity of the positioning groove. The compression spring 452 is located inside the positioning groove. One end of the compression spring 452 is fixedly connected to the inner wall of the positioning groove, and the other end is fixedly connected to the positioning block 451. The top of the positioning block 451 has an inclined surface, and the diameter of the positioning hole is longer than the width of the sliding groove. The compression spring 452 is always in a compressed state, thus providing a stable upward elastic force to the positioning block 451. This allows the positioning block 451 to pop out promptly when it coincides with the positioning hole and insert into it, thereby positioning the mounting cylinder 41 and the slide rod 42 and preventing displacement during use. Multiple limiting blocks 453 are fixedly connected to both sides of the positioning block 451. Limiting grooves are opened on both sides of the inner wall of the positioning groove. The limiting blocks 453 are slidably inserted into the inner cavity of the limiting grooves. The limiting blocks 453 play a limiting role on the positioning block 451, so that the positioning block 451 can only move along the limiting grooves.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screw structure for a screw air compressor, comprising: Mounting rod (1), the top end of which is fixedly connected to key block (2), and gear (5) is slidably inserted between mounting rod (1) and key block (2); The feature is that: a screw body (3) is provided on one side of the mounting rod (1), and a fixing mechanism (4) is provided between the screw body (3) and the mounting rod (1), the fixing mechanism (4) including: The mounting cylinder (41) has external threads on the outer walls of both the screw body (3) and the mounting rod (1). The mounting cylinder (41) is threaded onto the outside of the screw body (3), and the mounting cylinder (41) and the mounting rod (1) are threadedly connected. The slide rod (42) has a groove at one end of the screw body (3), and one end of the slide rod (42) is slidably inserted into the inner cavity of the groove, and the other end of the slide rod (42) is slidably inserted into the inner cavity of the mounting rod (1). A snap-fit ​​plate (43) is fixedly connected to one end of a slide rod (42). The inner wall of the mounting rod (1) is provided with a snap-fit ​​groove, and the snap-fit ​​plate (43) is slidably inserted into the inner cavity of the snap-fit ​​groove. Linkage component (44), wherein the linkage component (44) is disposed between the mounting cylinder (41) and the slide rod (42); Positioning component (45), which is disposed inside the slide bar (42), is used to limit the position of the mounting cylinder (41) and the slide bar (42).

2. The screw structure of a screw air compressor according to claim 1, characterized in that, The linkage component (44) includes: A sliding ring (441) is provided in the inner wall of the mounting cylinder (41), and the sliding ring (441) is located inside the annular groove. The sliding rod (442) has one end fixedly connected to the inner wall of the sliding ring (441), and the other end of the sliding rod (442) is fixedly connected to the top and bottom of the sliding rod (42). The top and bottom of the inner wall of the sliding groove are provided with sliding grooves, and the sliding rod (442) is slidably inserted into the inner cavity of the sliding groove.

3. The screw structure of a screw air compressor according to claim 1, characterized in that, The positioning component (45) includes: The positioning block (451) has a positioning groove at the top of the slide rod (42), a positioning hole at the top of the inner wall of the slide groove, the top of the positioning block (451) is slidably inserted into the inner cavity of the positioning hole, and the bottom of the positioning block (451) is slidably inserted into the inner cavity of the positioning groove. Compression spring (452) is located inside the positioning groove.

4. The screw structure of a screw air compressor according to claim 3, characterized in that, One end of the compression spring (452) is fixedly connected to the inner wall of the positioning groove, and the other end of the compression spring (452) is fixedly connected to the positioning block (451).

5. The screw structure of a screw air compressor according to claim 3, characterized in that, The positioning component (45) further includes: Limiting blocks (453), a plurality of the limiting blocks (453) are fixedly connected to both sides of the positioning block (451), and limiting grooves are provided on both sides of the inner wall of the positioning groove. The limiting blocks (453) are slidably inserted into the inner cavity of the limiting grooves.

6. The screw structure of a screw air compressor according to claim 3, characterized in that, The top of the positioning block (451) is provided with an inclined surface, and the diameter of the positioning hole is longer than the width of the sliding groove.

Images