Mechanical vacuumizing device

Abstract

The utility model provides a mechanical vacuumizing device which comprises a vacuum pump and a driving motor connected with the vacuum pump, the driving motor is provided with two motor binding posts, wire holes are formed in the two motor binding posts, a fixing mechanism is arranged between the driving motor and the two wire holes, the fixing mechanism comprises a fixing base fixedly installed on the driving motor, and the fixing base is fixedly installed on the driving motor. And an adjusting piece is arranged on the fixed seat. Through the arranged fixing mechanism, after the wire is connected with the existing wire nose, the wire penetrating column can be inserted between the wire nose and the wire hole, and the clamping plate is driven by the adjusting piece to be close to the motor binding post, so that the wire nose is clamped between the clamping plate and the motor binding post, rapid and stable connection of the wire is achieved, and the service life of the wire is prolonged. The use convenience and safety of the vacuumizing device are obviously improved; and moreover, the tight fit between the wire and the connecting column can be ensured, the problem that the wire is loosened and falls off due to factors such as vibration and temperature change is effectively prevented, and the stability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumping, and more specifically, to a mechanical vacuum pumping device. Background Art

[0002] In the field of vacuum technology, a vacuum pumping device is an important piece of equipment that is widely used in various occasions that require a vacuum environment. Its main working principle is that a motor drives a pump body to generate a pressure difference between the air suction port of the pump body and the external atmospheric pressure, and then suck the gas into the pump cavity and discharge it through the exhaust port to achieve the purpose of vacuum pumping. However, in the actual use of the vacuum pumping device, the connection and fastening of the wires is a crucial and complex step.

[0003] At present, for most vacuum pumping devices on the market, the connection between the wire connection posts and the wires mainly adopts the traditional winding method. This method requires manual threading of the wires inside the wire connection posts and then multiple layers of winding to achieve fastening. This operation is not only cumbersome and time-consuming, which is not conducive to the quick connection of the wires, but also during long-term use, due to factors such as vibration and temperature changes, the wires are likely to loosen and fall off, thus causing equipment failures and even safety accidents, greatly reducing the safety of equipment use. Therefore, we have made improvements in this regard and proposed a mechanical vacuum pumping device. Summary of the Invention

[0004] The purpose of the present utility model is to address the problem that the connection between the wire connection posts and the wires mainly adopts the traditional winding method at present, which is cumbersome in operation and prone to loosening and falling off.

[0005] In order to achieve the above-mentioned invention purpose, the present utility model provides a mechanical vacuum pumping device to improve the above problems.

[0006] Specifically, this application is as follows:

[0007] A mechanical vacuum pumping device includes a vacuum pump and a driving motor connected to the vacuum pump. The driving motor has two motor connection posts, and wire holes are provided on both of the two motor connection posts. A fixing mechanism is arranged between the driving motor and the two wire holes. The fixing mechanism includes a fixing seat fixedly installed on the driving motor. An adjusting member is arranged on the fixing seat. The adjusting member is connected to two transmission rods. One end of each of the two transmission rods away from each other passes through one of the two motor connection posts and is fixedly connected with a clamping plate. Accommodation grooves are provided on one side of each of the two clamping plates close to each other. Threading posts are fixedly connected to one side of each of the two accommodation grooves close to each other. The two threading posts are respectively inserted into the inner walls of the two wire holes.

[0008] As a preferred technical solution of this application, blocking strips are fixedly connected to both sides of the fixing seat, and one end of each of the two blocking strips away from each other contacts one of the two motor connection posts.

[0009] As a preferred technical solution of the present application, a through hole for the transmission rod to pass through is provided on the motor terminal, and the outer surface of the transmission rod is inserted and connected with the through hole.

[0010] As a preferred technical solution of the present application, the adjusting member includes a chamber opened in the fixed seat. A bidirectional lead screw is rotatably connected in the chamber through a bearing. Two transmission plates are threadedly connected to the outer surface of the bidirectional lead screw. One ends of the two transmission rods close to each other are both located in the chamber and are respectively fixedly connected to the two transmission plates.

[0011] As a preferred technical solution of the present application, two bevel gears meshing with each other are arranged in the chamber. One of the bevel gears is fixedly sleeved on the outer surface of the bidirectional lead screw, and the other bevel gear is connected with a rotating shaft. One end of the rotating shaft penetrates out of the chamber and is fixedly connected with a hand wheel.

[0012] As a preferred technical solution of the present application, limiting members are arranged between the top of the fixed seat and the two clamping plates, and the limiting members are used for limiting the electric wire.

[0013] As a preferred technical solution of the present application, the limiting member includes a sliding groove opened on the top of the fixed seat. A limiting plate is slidably connected in the sliding groove. One end of the limiting plate penetrates out of the sliding groove. A first baffle is fixedly connected to the top of the fixed seat, and the bottom of the first baffle contacts the top of the fixed seat.

[0014] As a preferred technical solution of the present application, a spring piece is arranged in the sliding groove, and two ends of the spring piece are respectively fixedly connected with the limiting plate and the sliding groove.

[0015] As a preferred technical solution of the present application, a second baffle is fixedly connected to the top of the limiting plate, and the second baffle is used to cooperate with the first baffle to realize the limitation of the limiting plate.

[0016] As a preferred technical solution of the present application, the limiting member further includes an avoidance opening, and the avoidance opening is opened on the clamping plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] In the solution of the present application:

[0019] In order to solve the problems that in the prior art, the connection between the wire connection post and the wire mainly adopts the traditional winding method, which is cumbersome to operate and prone to loosening and falling off, in this application, through the provided fixing mechanism, after the wire is connected to the existing wire nose, the wire threading post can be inserted between the wire nose and the wire hole, and the clamping plate approaches the motor connection post under the drive of the adjusting member, so that the wire nose is clamped between the clamping plate and the motor connection post, thereby realizing the rapid and stable connection of the wire, significantly improving the use convenience and safety of the vacuum pumping device; and it can ensure the tight fit between the wire and the connection post, effectively preventing the problem of wire loosening and falling off caused by factors such as vibration and temperature change, and improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 6 is a schematic structural diagram of a mechanical vacuum pumping device provided by this application;

[0021] Figure 2 FIG. 10 is a schematic structural diagram of the wire hole and the through hole of a mechanical vacuum pumping device provided by this application;

[0022] Figure 3 FIG. 14 is a schematic structural diagram of the fixing mechanism of a mechanical vacuum pumping device provided by this application;

[0023] Figure 4 FIG. 18 is a schematic structural diagram of the accommodating groove of a mechanical vacuum pumping device provided by this application;

[0024] Figure 5 FIG. 22 is a schematic structural diagram of the fixing seat of a mechanical vacuum pumping device provided by this application.

[0025] Labels in the figure:

[0026] 1, vacuum pump; 2, drive motor; 201, motor connection post; 202, wire hole; 3, through hole; 4, fixing mechanism; 401, fixing seat; 402, transmission rod; 403, stop bar; 404, clamping plate; 406, avoiding opening; 407, wire threading post; 408, sliding groove; 409, limiting plate; 410, first baffle; 411, second baffle; 413, elastic sheet; 414, handwheel; 415, rotating shaft; 416, bevel gear; 417, chamber; 418, bidirectional lead screw; 419, accommodating groove; 420, transmission plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] As described in the background art, for most of the vacuum pumping devices on the market currently, the connection between the wire connection posts and the wires mainly adopts the traditional winding method. This method requires manual threading of the wires through the inside of the wire connection posts and then multiple layers of winding to achieve fastening. This operation is not only cumbersome and time-consuming, which is not conducive to the rapid connection of the wires, but also during long-term use, due to factors such as vibration and temperature changes, the wires are prone to loosen and fall off, thus triggering equipment failures and even causing safety accidents, greatly reducing the use safety of the equipment.

[0029] To solve this technical problem, the present utility model provides a mechanical vacuum pumping device.

[0030] Specifically, please refer to Figures 1-5 , a mechanical vacuum pumping device specifically includes:

[0031] A vacuum pump 1 and a driving motor 2 connected to the vacuum pump 1. The driving motor 2 has two motor connection posts 201, and wire holes 202 are opened on both of the two motor connection posts 201. A fixing mechanism 4 is arranged between the driving motor 2 and the two wire holes 202. The fixing mechanism 4 includes a fixing seat 401 fixedly installed on the driving motor 2. An adjusting member is arranged on the fixing seat 401. The adjusting member is connected with two transmission rods 402. The mutually remote ends of the two transmission rods 402 respectively pass through the two motor connection posts 201 and are both fixedly connected with clamping plates 404. Accommodating grooves 419 are opened on the mutually close sides of the two clamping plates 404. Threading posts 407 are fixedly connected to the mutually close sides of the two accommodating grooves 419. The two threading posts 407 are respectively inserted into the inner walls of the two wire holes 202.

[0032] A mechanical vacuum pumping device provided by the utility model, through the provided fixing mechanism 4, after the wire is connected to the existing wire nose, the wire threading column 407 can be inserted between the wire nose and the wire hole 202, and the clamping plate 404 approaches the motor terminal 201 under the drive of the adjusting member, so that the wire nose is clamped between the clamping plate 404 and the motor terminal 201, thereby realizing the fast and stable connection of the wire, significantly improving the use convenience and safety of the vacuum pumping device; and it can ensure the tight fit between the wire and the connection column, effectively preventing the problem of wire loosening and falling off caused by factors such as vibration and temperature change, and improving the stability of the device.

[0033] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings.

[0034] It should be noted that, without conflict, the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] Embodiment 1, please refer to Figures 1-5 , a mechanical vacuum pumping device, including a vacuum pump 1 and a driving motor 2 connected to the vacuum pump 1. The driving motor 2 has two motor terminals 201, and wire holes 202 are provided on both of the two motor terminals 201. A fixing mechanism 4 is arranged between the driving motor 2 and the two wire holes 202. The fixing mechanism 4 includes a fixing seat 401 fixedly installed on the driving motor 2. An adjusting member is arranged on the fixing seat 401. The adjusting member is connected with two transmission rods 402. The mutually remote ends of the two transmission rods 402 respectively pass through the two motor terminals 201 and are both fixedly connected with clamping plates 404. Accommodating grooves 419 are respectively provided on the mutually close sides of the two clamping plates 404. Threading columns 407 are respectively fixedly connected to the mutually close sides of the two accommodating grooves 419. The two threading columns 407 are respectively inserted into the inner walls of the two wire holes 202. After the wire is connected to the existing wire nose, the wire threading column 407 can be inserted between the wire nose and the wire hole 202, and the clamping plate 404 approaches the motor terminal 201 under the drive of the adjusting member, so that the wire nose is clamped between the clamping plate 404 and the motor terminal 201, thereby realizing the fast and stable connection of the wire, significantly improving the use convenience and safety of the vacuum pumping device; and it can ensure the tight fit between the wire and the connection column, effectively preventing the problem of wire loosening and falling off caused by factors such as vibration and temperature change, and improving the stability of the device.

[0037] Furthermore, asFigures 3-5 As shown, on both sides of the fixed seat 401, there are fixed connection strips 403. The mutually distant ends of the two connection strips 403 are respectively in contact with the two motor terminal posts 201. Through the connection strips 403, auxiliary support can be provided for the side of the motor terminal post 201 away from the clamping plate 404, so as to reduce the situation where the motor terminal post 201 is bent when the clamping plate 404 acts on the motor terminal post 201.

[0038] Further, as Figure 2 shown, a through hole 3 for the transmission rod 402 to pass through is provided on the motor terminal post 201, and the outer surface of the transmission rod 402 is inserted and connected with the through hole 3.

[0039] Further, as Figure 5 shown, the adjusting member includes a chamber 417 opened in the fixed seat 401. Inside the chamber 417, a bidirectional lead screw 418 is rotatably connected through a bearing. The outer surface of the bidirectional lead screw 418 is threadedly connected with two transmission plates 420. The mutually close ends of the two transmission rods 402 are both located inside the chamber 417 and are respectively fixedly connected with the two transmission plates 420. During the rotation of the bidirectional lead screw 418, the two transmission rods 402 can be driven to approach or move away from each other through the transmission rods 402, and the two transmission rods 402 can drive the two clamping plates 404 to approach or move away from each other.

[0040] Further, as Figures 3-5 shown, two meshing bevel gears 416 are arranged inside the chamber 417. One of the bevel gears 416 is fixedly sleeved on the outer surface of the bidirectional lead screw 418, and the other bevel gear 416 is connected with a rotating shaft 415. One end of the rotating shaft 415 passes out of the chamber 417 and is fixedly connected with a handwheel 414. A bearing is provided at the connection between the outer surface of the rotating shaft 415 and the fixed seat 401. By rotating the handwheel 414, the rotating shaft 415 can be driven to rotate, and further, the bidirectional lead screw 418 can be driven to rotate through the mutual cooperation of the rotating shaft 415 and the two bevel gears 416.

[0041] Example 2 further optimizes a mechanical vacuum pumping device provided in Example 1. Specifically, as Figure 3 shown, a limiting member is provided between the top of the fixed seat 401 and the two clamping plates 404. The limiting member is used for limiting the electric wire to reduce the situation where the electric wire falls off due to external force pulling.

[0042] Further, as Figures 3-4 shown, the limiting member includes a chute 408 opened on the top of the fixed seat 401. A limiting plate 409 is slidably connected inside the chute 408. One end of the limiting plate 409 passes out of the chute 408. A first baffle 410 is fixedly connected to the top of the fixed seat 401, and the bottom of the first baffle 410 is in contact with the top of the fixed seat 401. The first baffle 410 can limit the limiting plate 409.

[0043] Further, as Figures 3-4 shown, a shrapnel 413 is arranged in the chute 408. Two ends of the shrapnel 413 are fixedly connected to the limiting plate 409 and the chute 408 respectively. The electric wire is placed between the clamping plate 404 and the limiting plate 409, and the clamping plate 404, the limiting plate 409 and the shrapnel 413 cooperate with each other to clamp the electric wire, so as to realize the limiting of the electric wire.

[0044] Further, as Figures 3-4 shown, a second baffle 411 is fixedly connected to the top of the limiting plate 409. The second baffle 411 is used to cooperate with the first baffle 410 to realize the limiting of the limiting plate 409. The acting force of the second baffle 411 and the first baffle 410 cooperate to prevent the limiting plate 409 from detaching from the chute 408

[0045] Further, as Figures 3-4 shown, the limiting member further includes an avoidance opening 406. The avoidance opening 406 is formed on the clamping plate 404. The setting of the avoidance opening 406 can enable the clamping plate 404 to avoid the part where the electric wire is connected to the wire nose.

[0046] The using process of a mechanical vacuum pumping device provided by the present utility model is as follows:

[0047] Rotate the handwheel 414. The handwheel 414 drives two driving plates 420 to move away from each other through the rotating shaft 415 and the bevel gear 416. The two driving plates 420 drive two clamping plates 404 to move away from each other through two transmission rods 402. After connecting the electric wire with the existing wire nose, insert the wire nose into the wire threading column 407. The electric wire is placed between the clamping plate 404 and the limiting plate 409. Reverse-rotate the handwheel 414 to make the two clamping plates 404 approach each other, so that the wire threading column 407 is inserted into the wire hole 202, and the wire nose is clamped between the clamping plate 404 and the motor terminal 201, and the electric wire is clamped and limited under the cooperation of the shrapnel 413, the limiting plate 409 and the clamping plate 404;

[0048] Rotate the handwheel 414. The handwheel 414 drives two driving plates 420 to move away from each other through the rotating shaft 415 and the bevel gear 416. The two driving plates 420 drive two clamping plates 404 to move away from each other through two transmission rods 402. After removing the wire nose, reverse-rotate the handwheel 414 to make the two clamping plates 404 approach each other, so that the wire threading column 407 is inserted into the wire hole 202, and the motor terminal 201 enters the accommodating groove 419. At this time, the motor terminal 201 can be protected by the fixing mechanism 4, so as to reduce the situation that the motor terminal 201 is damaged by knocking during the process of taking the application out of the corresponding device for inspection or before being installed in the corresponding device.

[0049] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of the embodiments. The preferred embodiments of the present utility model are given in the drawings, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields shall be within the scope of the patent protection of the present utility model by the same token.

Claims

1. A mechanical vacuum pumping device, characterized in that, It includes a vacuum pump (1) and a drive motor (2) connected to the vacuum pump (1). The drive motor (2) has two motor terminal posts (201), and wire holes (202) are provided on both of the two motor terminal posts (201). A fixing mechanism (4) is arranged between the drive motor (2) and the two wire holes (202). The fixing mechanism (4) includes a fixing seat (401) fixedly installed on the drive motor (2). An adjusting member is arranged on the fixing seat (401). The adjusting member is connected with two transmission rods (402). The mutually remote ends of the two transmission rods (402) respectively pass through the two motor terminal posts (201) and are fixedly connected with clamping plates (404). Accommodating grooves (419) are provided on the mutually close sides of the two clamping plates (404). Threading posts (407) are fixedly connected to the mutually close sides of the two accommodating grooves (419). The two threading posts (407) are respectively inserted into the inner walls of the two wire holes (202); Blocking strips (403) are fixedly connected to both sides of the fixing seat (401). The mutually remote ends of the two blocking strips (403) respectively contact the two motor terminal posts (201); A through hole (3) for the transmission rod (402) to pass through is provided on the motor terminal post (201). The outer surface of the transmission rod (402) is inserted and connected with the through hole (3).

2. The mechanical vacuum pumping device according to claim 1, wherein The adjusting member includes a chamber (417) opened in the fixing seat (401). A bidirectional lead screw (418) is rotatably connected in the chamber (417) through a bearing. Two transmission plates (420) are threadedly connected to the outer surface of the bidirectional lead screw (418). The mutually close ends of the two transmission rods (402) are both located in the chamber (417) and are respectively fixedly connected with the two transmission plates (420).

3. A mechanical vacuum pumping device according to claim 2, characterized in that, Two bevel gears (416) meshing with each other are arranged in the chamber (417). One of the bevel gears (416) is fixedly sleeved on the outer surface of the bidirectional lead screw (418). The other bevel gear (416) is connected with a rotating shaft (415). One end of the rotating shaft (415) penetrates out of the chamber (417) and is fixedly connected with a hand wheel (414).

4. A mechanical vacuum pumping device according to claim 3, characterized in that Limit members are arranged between the top of the fixing seat (401) and the two clamping plates (404). The limit members are used for limiting the electric wires.

5. A mechanical vacuum pumping device according to claim 4, characterized in that, The limit member includes a sliding groove (408) opened on the top of the fixing seat (401). A limit plate (409) is slidably connected in the sliding groove (408). One end of the limit plate (409) penetrates out of the sliding groove (408). A first baffle (410) is fixedly connected to the top of the fixing seat (401), and the bottom of the first baffle (410) contacts the top of the fixing seat (401).

6. A mechanical vacuum pumping device according to claim 5, characterized in that, A elastic piece (413) is arranged in the sliding groove (408). The two ends of the elastic piece (413) are respectively fixedly connected with the limit plate (409) and the sliding groove (408).

7. A mechanical vacuum pumping device according to claim 6, characterized in that, A second baffle (411) is fixedly connected to the top of the limiting plate (409), and the second baffle (411) is used to cooperate with the first baffle (410) to limit the limiting plate (409).

8. A mechanical vacuum pumping device according to claim 7, characterized in that, The limiting member further includes an avoidance opening (406), and the avoidance opening (406) is formed in the clamping plate (404).

Images