Vacuum pump air tightness test bench

Abstract

The utility model relates to the technical field of vacuum pump air tightness test, in particular to a vacuum pump air tightness test board which comprises a test box body, the test box body comprises a base, the base is installed at the bottom end of the test box body, a door plate body is hinged to the side wall of one side of the test box body, and an air tightness test mechanism is installed on the side wall of one side of the test box body. A control panel is installed on the side wall of one side of the test box body, the control panel is located below the air tightness test mechanism, a connecting pipe is installed at the top end of the test box body, a floor is installed at the bottom end in the test box body, and a vacuum pump body is installed at the top end of the floor. Firstly, the threaded rod is in threaded connection with the threaded hole, and the sliding groove is matched with the sliding block, so that the threaded rod rotates to drive the positioning plate to ascend and descend in the threaded hole through the sliding block and the sliding groove, and the positioning plate can ascend and descend to drive the extrusion plate to ascend and descend at the same time so as to position and fix a floor.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness testing of vacuum pumps, in particular to an air tightness testing bench for vacuum pumps. Background Art

[0002] A vacuum pump refers to a device or equipment that evacuates a container to be evacuated by mechanical, physical, chemical or physicochemical methods to obtain a vacuum. Generally speaking, a vacuum pump is a device that improves, generates and maintains a vacuum in a closed space by various methods. According to the working principle of the vacuum pump, the vacuum pump can basically be divided into two types, namely a gas capture pump and a gas transfer pump. It is widely used in industries such as metallurgy, chemical industry, food, and electronic coating. After production is completed, it is necessary to check whether the vacuum pump leaks air, so it is necessary to test the air tightness of the vacuum pump;

[0003] At present, most of the vacuum pump air tightness testing benches on the market cannot position and fix the vacuum pump when testing the vacuum pump, resulting in the vacuum pump shaking during the test, thus affecting the effect of the vacuum pump air tightness test. At the same time, when the vacuum pump is connected to the air tightness testing bench, the sealing performance is poor, thus affecting the test effect of the vacuum pump air tightness. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. Such simplifications or omissions shall not be used to limit the scope of the present utility model.

[0005] In view of the above or the existing technology, most of the vacuum pump air tightness testing benches on the market cannot position and fix the vacuum pump when testing the vacuum pump, resulting in the vacuum pump shaking during the test, thus affecting the effect of the vacuum pump air tightness test. At the same time, when the vacuum pump is connected to the air tightness testing bench, the sealing performance is poor, thus affecting the test effect of the vacuum pump air tightness. Therefore, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide an air tightness testing bench for vacuum pumps.

[0007] To solve the above technical problems, the present utility model provides the following technical solutions: The airtightness test bench for a vacuum pump includes a test box body, which includes a base. The base is installed at the bottom end of the test box body. A door panel main body is hinged to the side wall of one side of the test box body. An airtightness test mechanism is installed on the side wall of one side of the test box body. A control panel is installed on the side wall of one side of the test box body, and the control panel is located below the airtightness test mechanism. A connecting pipe is installed at the top end of the test box body. A floor is installed at the bottom end inside the test box body, and a vacuum pump main body is installed at the top end of the floor. A vacuum tube is installed on the outer wall of the vacuum pump main body. A test tube is installed on the side wall of one end of the airtightness test mechanism, and an installation frame is installed at one end of the test tube;

[0008] A positioning and fixing mechanism, which includes a support plate and a chute. The support plate is installed on the side walls at both ends inside the test box body. A threaded hole is opened inside the support plate, and a threaded rod is threadedly connected inside the threaded hole. The bottom end of the threaded rod is rotatably installed with a positioning plate through a bearing, and one end of the bottom end of the positioning plate is installed with a pressing plate. The chute is opened on the side walls at both ends inside the test box body. A slider is arranged inside the chute. A turntable main body is installed at the top end of the threaded rod.

[0009] As a preferred scheme of the airtightness test bench for the vacuum pump of the present utility model, wherein: A slider is installed at the top end of the threaded rod, and an anti-slip pattern is arranged on the outer wall of the slider.

[0010] As a preferred scheme of the airtightness test bench for the vacuum pump of the present utility model, wherein: Both ends of the connecting pipe are communicated with the vacuum tube and the airtightness test mechanism respectively.

[0011] As a preferred scheme of the airtightness test bench for the vacuum pump of the present utility model, wherein: A sealing ring is installed on the inner wall of the installation frame. Through holes are opened on the outer walls of the installation frame, and sliding rods are arranged inside the through holes. A first spring main body is sleeved on the outer wall of the sliding rod.

[0012] As a preferred scheme of the airtightness test bench for the vacuum pump of the present utility model, wherein: A disc main body is installed at the top end of the sliding rod, and an anti-slip pattern is arranged on the outer wall of the disc main body.

[0013] As a preferred scheme of the airtightness test bench for the vacuum pump of the present utility model, wherein; A sealing groove is opened on the inner wall of the vacuum tube, and the sealing groove is sealed with the sealing ring. A positioning hole is opened on the outer wall of the vacuum tube.

[0014] As a preferred scheme of the airtightness test bench for the vacuum pump of the present utility model, wherein; The sealing ring includes a second spring main body, and the second spring main body is installed on the inner walls of the sealing ring.

[0015] Advantages of the airtightness test bench for the vacuum pump of the present utility model: Firstly, the floor and the vacuum pump main body are placed at the bottom inside the test box of the present utility model. By rotating the turntable main body, the threaded rod is driven to rotate. Since the threaded rod is threadedly connected to the threaded hole and through the mutual cooperation of the chute and the slider, the rotation of the threaded rod drives the positioning plate to lift inside the threaded hole through the slider and the chute, facilitating the lifting of the positioning plate to drive the pressing plate to lift simultaneously to position and fix the floor.

[0016] Advantages of the airtightness test bench for the vacuum pump of the present utility model: Firstly, by pulling the disc main body, the sliding rod is driven to lift inside the through hole, causing the sliding rod to lift and pull the first spring main body to deform, so that the sliding rod is no longer stuck with the positioning hole. At the same time, the vacuum tube is inserted into the installation frame, and through the elastic recovery of the first spring main body, the sliding rod is driven to be stuck with the positioning hole, thus facilitating the operator to install the vacuum tube. And through the mutual cooperation of the sealing ring and the sealing groove, the sealing effect is better when the vacuum tube is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0018] Figure 1 It is the front view structural schematic diagram of the airtightness test bench for the vacuum pump.

[0019] Figure 2 It is the structural schematic diagram of the positioning and fixing mechanism of the airtightness test bench for the vacuum pump.

[0020] Figure 3 It is the structural schematic diagram of the vacuum tube assembly of the airtightness test bench for the vacuum pump.

[0021] Figure 4 It is the structural schematic diagram of the sealing ring of the airtightness test bench for the vacuum pump.

[0022] Figure 5 It is the internal structural schematic diagram of the vacuum tube assembly of the airtightness test bench for the vacuum pump.

[0023] Figure 6 It is the structural schematic diagram of the vacuum tube assembly of the airtightness test bench for the vacuum pump.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Test box; 101. Base; 102. Door panel body; 103. Air tightness test mechanism; 104. Control panel; 105. Connecting pipe; 106. Floor; 107. Vacuum pump body; 1071. Vacuum pipe; 1072. Sealing groove; 1073. Positioning hole; 108. Test pipe; 1081. Installation frame; 1082. First spring body; 1083. Sealing ring; 10831. Second spring body; 1084. Through hole; 1085. Sliding rod; 1086. Disc body;

[0026] 2. Positioning and fixing mechanism; 201. Support plate; 202. Threaded hole; 203. Threaded rod; 204. Turntable body; 205. Positioning plate; 206. Extrusion plate; 207. Chute; 208. Slide block. Detailed implementation manners

[0027] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model is provided in conjunction with the accompanying drawings of the specification.

[0028] In the following description, many specific details are set forth to facilitate a thorough understanding of the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0029] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present utility model. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other with other embodiments.

[0030] Embodiment 1: Refer to Figures 1 to 6, which is the first embodiment of the present utility model. This embodiment provides a vacuum pump airtightness test bench, which can achieve most of the vacuum pump airtightness test benches on the current market. When testing a vacuum pump, it is impossible to position and fix the vacuum pump, resulting in the vacuum pump shaking during the test, thus affecting the test effect of the vacuum pump airtightness. At the same time, when the vacuum pump is connected to the airtightness test bench, the sealing performance is poor, thus affecting the test effect of the vacuum pump airtightness. It includes a test box body 1, which includes a base 101. The base 101 is installed at the bottom end of the test box body 1. A door panel main body 102 is hinged on the side wall of one side of the test box body 1. An airtightness test mechanism 103 is installed on the side wall of one side of the test box body 1. A control panel 104 is installed on the side wall of one side of the test box body 1, and the control panel 104 is located below the airtightness test mechanism 103. A connecting pipe 105 is installed at the top end of the test box body 1. A floor 106 is installed at the bottom end inside the test box body 1, and a vacuum pump main body 107 is installed at the top end of the floor 106. A vacuum tube 1071 is installed on the outer wall of the vacuum pump main body 107. A test tube 108 is installed on the side wall of one end of the airtightness test mechanism 103, and an installation frame 1081 is installed at one end of the test tube 108.

[0031] Both ends of the connecting pipe 105 are communicated with the vacuum tube 1071 and the airtightness test mechanism 103 respectively. A sealing ring 1083 is installed on the inner wall of the installation frame 1081. Through holes 1084 are opened on the outer walls of the installation frame 1081, and a sliding rod 1085 is arranged inside the through holes 1084. A first spring main body 1082 is sleeved on the outer wall of the sliding rod 1085. A disc main body 1086 is installed at the top end of the sliding rod 1085, and anti-slip lines are arranged on the outer wall of the disc main body 1086. A sealing groove 1072 is opened on the inner wall of the vacuum tube 1071, and the sealing groove 1072 is sealed with the sealing ring 1083. The sealing ring 1083 includes a second spring main body 10831, and the second spring main body 10831 is installed on the inner walls of the sealing ring 1083.

[0032] The specific working principle is that when it is necessary to install and connect the vacuum pump main body 107 and the airtightness test mechanism 103, first pull the disc main body 1086 to drive the sliding rod 1085 to lift inside the through hole 1084, so that the sliding rod 1085 lifts to pull the first spring main body 1082 to deform, so that the sliding rod 1085 is no longer engaged with the positioning hole 1073. At the same time, insert the vacuum tube 1071 into the inside of the installation frame 1081, and drive the sliding rod 1085 to engage with the positioning hole 1073 through the elastic recovery of the first spring main body 1082, so as to facilitate the operator to install the vacuum tube 1071, and through the mutual cooperation of the sealing ring 1083 and the sealing groove 1072, so that when the vacuum tube 1071 is installed, the sealing effect is better.

[0033] Embodiment 2: Refer to Figures 1 to 6 , which is the first embodiment of the present utility model. This embodiment provides a vacuum pump airtightness test bench, which can achieve most of the vacuum pump airtightness test benches on the current market. When testing a vacuum pump, it is impossible to position and fix the vacuum pump, resulting in the vacuum pump shaking during the test, thus affecting the effect of the vacuum pump airtightness test. At the same time, when the vacuum pump is connected to the airtightness test bench, the sealing performance is poor, thus affecting the test effect of the vacuum pump airtightness. The positioning and fixing mechanism 2 includes a support plate 201 and a chute 207. The support plate 201 is installed on the side walls at both ends inside the test box body 1. A threaded hole 202 is opened inside the support plate 201, and a threaded rod 203 is threadedly connected inside the threaded hole 202. The bottom end of the threaded rod 203 is rotatably installed with a positioning plate 205 through a bearing, and one end of the bottom end of the positioning plate 205 is installed with a pressing plate 206. The chute 207 is opened on the side walls at both ends inside the test box body 1, and a slider 208 is arranged inside the chute 207. The top end of the threaded rod 203 is installed with a turntable body 204.

[0034] The top end of the threaded rod 203 is installed with a slider 208, and the outer wall of the slider 208 is provided with anti-slip lines.

[0035] The specific working principle is that when it is necessary to position and fix the vacuum pump body 107, first place the floor 106 and the vacuum pump body 107 at the bottom end inside the test box body 1, and drive the threaded rod 203 to rotate by rotating the turntable body 204. Since the threaded rod 203 is threadedly connected to the threaded hole 202, and through the mutual cooperation of the chute 207 and the slider 208, the rotation of the threaded rod 203 drives the positioning plate 205 to lift and lower inside the threaded hole 202 through the slider 208 and the chute 207, so as to facilitate the lifting and lowering of the positioning plate 205 to drive the pressing plate 206 to lift and lower simultaneously to position and fix the floor 106.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Vacuum pump air tightness test bench, characterized by: include, A test box (1) comprises a base (101), the base (101) being installed at the bottom end of the test box (1), a door panel body (102) being hingedly connected to a side wall of one side of the test box (1), an airtightness test mechanism (103) being installed on the side wall of one side of the test box (1), a control panel (104) being installed on the side wall of one side of the test box (1), and the control panel (104) being located below the airtightness test mechanism (103), and A connecting pipe (105) is installed at the top of the test box (1), a floor (106) is installed at the bottom of the test box (1), and a vacuum pump body (107) is installed at the top of the floor (106), a vacuum tube (1071) is installed on the outer wall of the vacuum pump body (107), a test tube (108) is installed on the side wall of one end of the airtightness test mechanism (103), and a mounting frame (1081) is installed at one end of the test tube (108); The positioning and fixing mechanism (2) comprises a support plate (201) and a slide groove (207), wherein the support plate (201) is mounted on the side walls at both ends of the interior of the test box (1), a threaded hole (202) is provided inside the support plate (201), and a threaded rod (203) is connected to the threaded hole (202) through the inner thread, a positioning plate (205) is rotatably mounted on the bottom end of the threaded rod (203) through a bearing, and an extrusion plate (206) is mounted on one end of the bottom end of the positioning plate (205), the slide groove (207) is provided on the side walls at both ends of the interior of the test box (1), a slider (208) is arranged inside the slide groove (207), and a turntable body (204) is mounted on the top end of the threaded rod (203).

2. The vacuum pump airtightness test bench according to claim 1, characterized in that: A sliding block (208) is installed at the top end of the threaded rod (203), and an outer wall of the sliding block (208) is provided with anti-slip grooves.

3. The vacuum pump airtightness test bench according to claim 1, characterized in that: Both ends of the connecting tube (105) are respectively connected to the vacuum tube (1071) and the airtightness testing mechanism (103).

4. The vacuum pump airtightness test bench according to claim 1, characterized in that: A sealing ring (1083) is installed on the inner wall of the installation frame (1081), a through hole (1084) is opened on the outer wall of the installation frame (1081), and a sliding rod (1085) is arranged inside the through hole (1084), and the outer wall of the sliding rod (1085) is sleeved with a first spring body (1082).

5. The vacuum pump airtightness test bench according to claim 4, characterized in that: A disc body (1086) is installed at the top end of the sliding rod (1085), and the outer wall of the disc body (1086) is provided with anti-slip grooves.

6. The vacuum pump airtightness test bench according to claim 1, characterized in that: The inner wall of the vacuum tube (1071) is provided with a sealing groove (1072), and the sealing groove (1072) and the sealing ring (1083) are sealed with each other. The outer wall of the vacuum tube (1071) is provided with a positioning hole (1073).

7. The vacuum pump airtightness test bench according to claim 4, characterized in that: The sealing ring (1083) includes a second spring body (10831), and the inner wall of the sealing ring (1083) is installed with the second spring body (10831).

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