Screw vacuum pump convenient to install

Abstract

The utility model relates to the technical field of vacuum pumps, and provides a screw type vacuum pump convenient to install in order to overcome the defect that in the prior art, when a pump body vibrates in the using process, connector connection is not firm, and the screw type vacuum pump convenient to install comprises a movable support and a vacuum pump body, and a worm gear is rotationally installed in the middle of the top of the movable support. The vacuum pump body is placed in the middle of the top of the worm gear, limiting grooves are formed in the peripheral surfaces of the vacuum pump body, a plurality of positioning blocks are fixedly installed on the periphery of the top of the worm gear, a sliding groove is formed in the side, close to the vacuum pump body, of each positioning block, and limiting blocks matched with the limiting grooves are installed in the sliding grooves in a sliding mode. By arranging the worm gear, the positioning blocks and the limiting blocks, when the vacuum pump body is hung in the middle of the top of the worm gear, the multiple limiting blocks are automatically embedded into the corresponding limiting grooves under the acting force of the reset springs, locking of the vacuum pump body is achieved, instability in the using process is avoided, and installation and operation are more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a screw vacuum pump which is easy to install. Background Art

[0002] Screw vacuum pumps are a common type of vacuum pump that uses a screw to create a vacuum. The working principle of a screw vacuum pump is similar to that of a screw compressor. As the screws rotate, they transport gas from the inlet end of the pump to the outlet end. In this process, the gas is compressed and sealed, thus creating a vacuum.

[0003] A dry screw vacuum pump in the prior art (publication number: CN220037992U) is provided with a limit plate, and with the cooperation of the mounting groove, it is convenient for the screw vacuum pump body to be plugged in and installed, and with the cooperation of the handle, it is helpful for the user to manually install or disassemble. However, the device does not fix the screw vacuum pump body after placing it in the mounting groove. During use, the pump body will vibrate, which may easily make the connection at the interface loose. Therefore, it is urgent to design a screw vacuum pump that is stable during use and easy to install. Utility Model Content

[0004] The utility model aims to solve the defect in the prior art that the pump body generates vibration during use, which easily causes the interface connection to be loose, and proposes a screw vacuum pump which is easy to install.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A screw vacuum pump that is easy to install comprises a movable bracket and a vacuum pump body, a worm gear is rotatably installed in the middle of the top of the movable bracket, the vacuum pump body is placed in the middle of the top of the worm gear, limiting grooves are provided on the surfaces around the vacuum pump body, a plurality of positioning blocks are fixedly installed around the top of the worm gear, each of the positioning blocks is provided with a slide groove on the side close to the vacuum pump body, a limiting block adapted to the limiting groove is slidably installed in the slide groove, a return spring is fixedly installed on the side of the limit block away from the vacuum pump body, the other end of the return spring is fixedly installed on one side in the slide groove, a first inclined surface is provided on the side of the limit block close to the vacuum pump body, a worm is rotatably installed on one side of the top of the movable bracket, the worm is meshed with the worm gear, and an unlocking mechanism is provided at the bottom of the movable bracket.

[0007] As a further technical solution of the utility model, an unlocking groove is provided at the bottom of the limit block, and a second inclined surface perpendicular to the first inclined surface is provided on one side of the unlocking groove. A first motor is fixedly installed on the top of the movable bracket, and the output end of the first motor is fixedly installed with the rotation center of one end of the worm gear.

[0008] As a further technical solution of the utility model, the unlocking mechanism includes an equipment frame, a second motor, a cross rod, a screw rod and multiple push rods. The equipment frame is fixedly installed on the bottom of the mobile bracket, the second motor is fixedly installed in the equipment frame, the rotation center of the bottom end of the screw rod is fixedly installed on the output end of the second motor, and the other end of the screw rod is rotatably installed on the bottom of the mobile bracket.

[0009] As a further technical solution of the utility model, each of the push rods is fixedly installed on each end of the top of the cross rod, and one end of the screw rod passes through the outer surface of the cross rod and is threadedly connected thereto.

[0010] As a further technical solution of the utility model, self-locking universal wheels are installed around the bottom of the movable bracket, and a lifting ring is fixedly installed on the top of the vacuum pump body.

[0011] As a further technical solution of the utility model, the movable bracket and the bottom of the worm wheel are evenly provided with a plurality of through holes adapted to the push rod in a circumferential manner, and a through hole adapted to the push rod is provided in the middle of the bottom of each positioning block.

[0012] As a further technical solution of the utility model, a plurality of the push rods are slidably installed in a plurality of through holes formed in the movable bracket.

[0013] The beneficial effects of the utility model are:

[0014] By setting a worm gear, a positioning block and a limit block, the vacuum pump body is hung in the middle of the top of the worm gear through a lifting ring and positioned by multiple positioning blocks. During the descending process of the vacuum pump body, the limit block gradually pushes the slide to squeeze the reset spring. When the vacuum pump body is placed on the top of the worm gear, the limit block slides toward the vacuum pump body under the action of the reset spring and is embedded in the corresponding limit groove, thereby realizing automatic fixation of the vacuum pump body, improving the convenience of equipment installation, avoiding instability of the vacuum pump body during use, and improving the stability of the equipment during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a screw vacuum pump that is easy to install proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a screw vacuum pump that is easy to install and is viewed from above.

[0017] Figure 3 This is a partial cross-sectional structural schematic diagram of a screw vacuum pump that is easy to install proposed by the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part A.

[0019] In the figure: 1. movable bracket; 2. worm gear; 3. positioning block; 4. limit block; 5. vacuum pump body; 6. lifting ring; 7. first motor; 8. worm; 9. unlocking mechanism; 10. limit groove; 11. reset spring; 901. equipment frame; 902. second motor; 903. cross rod; 904. screw rod; 905. push rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Please see attached Figure 1 -Attached Figure 4A screw vacuum pump that is easy to install includes a mobile bracket 1 and a vacuum pump body 5. A worm gear 2 is rotatably installed in the middle of the top of the mobile bracket 1. The vacuum pump body 5 is placed in the middle of the top of the worm gear 2. Limiting grooves 10 are arranged on the surface of the vacuum pump body 5. A plurality of positioning blocks 3 are fixedly installed around the top of the worm gear 2. Each positioning block 3 is provided with a slide groove on the side close to the vacuum pump body 5. A limiting block 4 adapted to the limiting groove 10 is slidably installed in the slide groove. The limiting block 4 is fixedly installed away from the side of the vacuum pump body 5. There is a return spring 11, the other end of the return spring 11 is fixedly installed on one side of the slide groove, the limit block 4 is provided with a first inclined surface on the side close to the vacuum pump body 5, a worm 8 is rotatably installed on one side of the top of the mobile bracket 1, the worm 8 is meshed with the worm wheel 2, an unlocking mechanism 9 is provided at the bottom of the mobile bracket 1, an unlocking groove is provided at the bottom of the limit block 4, and a second inclined surface perpendicular to the first inclined surface is provided on one side of the unlocking groove, a first motor 7 is fixedly installed on the top of the mobile bracket 1, and the output end of the first motor 7 is fixedly installed with the rotation center of one end of the worm 8.

[0024] When in use, by setting the worm gear 2, multiple positioning blocks 3 and multiple limiting blocks 4, the vacuum pump body 5 is suspended in the middle of the top of the worm gear 2, and is positioned by multiple positioning blocks 3, and the limiting blocks 4 are gradually pushed to slide and squeeze the reset spring 11 during the descending process of the vacuum pump body 5. When the vacuum pump body 5 is placed on the top of the worm gear 2, the limiting blocks 4 slide toward the vacuum pump body 5 under the action of the reset spring 11, and are embedded in the corresponding limiting grooves 10, so as to realize automatic fixation of the vacuum pump body 5, improve the convenience of equipment installation, and avoid the vacuum pump body 5 from falling off at the joint due to vibration during use, thereby improving the stability of the equipment during use;

[0025] The worm 8 is driven to rotate by the first motor 7, which can drive the worm wheel 2 to rotate, and then drive the fixed vacuum pump body 5 to adjust the direction of the connection end, so as to better connect with the pipeline at the work site, thereby improving the practicality of the equipment.

[0026] In this embodiment, the unlocking mechanism 9 includes an equipment frame 901, a second motor 902, a cross rod 903, a screw rod 904 and multiple push rods 905. The equipment frame 901 is fixedly installed at the bottom of the mobile bracket 1, the second motor 902 is fixedly installed in the equipment frame 901, the rotation center of the bottom end of the screw rod 904 is fixedly installed with the output end of the second motor 902, and the other end of the screw rod 904 is rotatably installed with the bottom of the mobile bracket 1. Each push rod 905 is respectively fixedly installed at each end of the top of the cross rod 903, one end of the screw rod 904 passes through the outer surface of the cross rod 903 and is threadedly connected with it, self-locking universal wheels are installed around the bottom of the mobile bracket 1, and a lifting ring 6 is fixedly installed on the top of the vacuum pump body 5. The bottom of the mobile bracket 1 and the worm gear 2 are evenly provided with multiple through holes that are compatible with the push rod 905, and the middle of the bottom of each positioning block 3 is provided with a through hole that is compatible with the push rod 905. Multiple push rods 905 are slidably installed in the multiple through holes opened in the mobile bracket 1.

[0027] When in use, the second motor 902 drives the screw rod 904 to rotate, and the screw rod 904 drives the cross rod 903 to move upward, and the cross rod 903 drives multiple push rods 905 to pass through the through holes opened in the mobile bracket 1 and the through holes opened in the worm gear 2 and multiple positioning blocks 3 in sequence, and then insert into the unlocking groove at the bottom of the limit block 4, so that the top of the push rod 905 is against the second inclined surface in the unlocking groove, and as the push rod 905 gradually moves upward, it pushes the limit block 4 to slide into the sliding groove opened in the positioning block 3 and squeezes the reset spring 11, thereby realizing the release of the limit of the vacuum pump body 5, which is convenient for disassembling the vacuum pump body 5;

[0028] The lifting ring 6 is provided to facilitate lifting and transportation by a crane, thereby improving the convenience of disassembly and assembly of the equipment. The self-locking universal wheel is provided to facilitate better equipment movement. Combined with the rotation of the worm gear 2, the angle of the vacuum pump body 5 can be flexibly adjusted, thereby improving the practicability of the equipment.

[0029] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when in use, the vacuum pump body 5 is placed on the top of the worm gear 2 by using a crane through the lifting ring 6, and is positioned by multiple positioning blocks 3 so that the vacuum pump body 5 is accurately placed in the middle of the top of the worm gear 2, and is automatically limited and fixed by multiple limiting blocks 4, and then the mobile bracket 1 is pushed to push the entire device to the working area, and each self-locking universal wheel is locked;

[0030] According to the needs of the site, when it is necessary to adjust the direction of the connection end of the vacuum pump body, start the first motor 7 to drive the worm 8 to rotate, the worm 8 drives the worm wheel 2 to rotate, and then drives the fixed vacuum pump body 5 to rotate, so that it can be better matched and connected;

[0031] When it is necessary to unlock and disassemble the vacuum pump body 5, start the second motor 902, the second motor 902 drives the screw rod 904 to rotate, the screw rod 904 drives the cross rod 903 to move upward, and then drives multiple push rods 905 to push the corresponding limit blocks 4 to slide in the slide groove opened by the positioning block 4, so that the multiple limit blocks 4 release the restriction on the vacuum pump body 5, and then it can be lifted and removed through the lifting ring 6, which is simple and convenient to operate.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A screw vacuum pump that is easy to install, comprising a movable bracket (1) and a vacuum pump body (5), characterized in that: A worm wheel (2) is rotatably mounted in the middle of the top of the movable bracket (1); the vacuum pump body (5) is placed in the middle of the top of the worm wheel (2); limiting grooves (10) are provided on the four sides of the vacuum pump body (5); a plurality of positioning blocks (3) are fixedly mounted around the top of the worm wheel (2); each positioning block (3) is provided with a slide groove on the side close to the vacuum pump body (5); a limiting block (4) adapted to the limiting groove (10) is slidably mounted in the slide groove; a return spring (11) is fixedly mounted on the side of the limiting block (4) away from the vacuum pump body (5); the other end of the return spring (11) is fixedly mounted on one side of the slide groove; a first inclined surface is provided on the side of the limiting block (4) close to the vacuum pump body (5); a worm (8) is rotatably mounted on one side of the top of the movable bracket (1); the worm (8) is meshed with the worm wheel (2); and an unlocking mechanism (9) is provided at the bottom of the movable bracket (1).

2. A screw vacuum pump that is easy to install according to claim 1, characterized in that: An unlocking groove is provided at the bottom of the limit block (4), and a second inclined surface perpendicular to the first inclined surface is provided on one side of the unlocking groove. A first motor (7) is fixedly mounted on the top of the movable bracket (1), and an output end of the first motor (7) is fixedly mounted to a rotation center of one end of the worm (8).

3. A screw vacuum pump that is easy to install according to claim 1, characterized in that: The unlocking mechanism (9) comprises an equipment frame (901), a second motor (902), a cross rod (903), a screw rod (904) and a plurality of push rods (905); the equipment frame (901) is fixedly mounted on the bottom of the mobile bracket (1); the second motor (902) is fixedly mounted in the equipment frame (901); the bottom rotation center of the screw rod (904) is fixedly mounted on the output end of the second motor (902); and the other end of the screw rod (904) is rotatably mounted on the bottom of the mobile bracket (1).

4. A screw vacuum pump that is easy to install according to claim 3, characterized in that: Each of the top rods (905) is fixedly mounted on each end of the top of the cross rod (903), and one end of the screw rod (904) passes through the outer surface of the cross rod (903) and is threadedly connected thereto.

5. The screw vacuum pump that is easy to install according to claim 1, characterized in that: Self-locking universal wheels are installed around the bottom of the movable bracket (1), and a lifting ring (6) is fixedly installed on the top of the vacuum pump body (5).

6. The screw vacuum pump that is easy to install according to claim 1, characterized in that: The bottom of the movable bracket (1) and the worm wheel (2) are uniformly provided with a plurality of through holes matching the push rod (905) in a circumferential manner, and the middle of the bottom of each positioning block (3) is provided with a through hole matching the push rod (905).

7. A screw vacuum pump that is easy to install according to claim 6, characterized in that: The plurality of push rods (905) are slidably mounted in a plurality of through holes provided in the movable bracket (1).

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