Dust sampler

Abstract

The utility model relates to the field of dust samplers, in particular to a dust sampler which comprises a connecting piece and a fixing rod, sliding grooves arranged at equal intervals are formed in the inner wall of the connecting piece, a sliding rod and an inclined block are slidably connected to the inner wall of each sliding groove, and first springs are fixedly connected to the faces, away from each other, of the inclined blocks; by arranging a sliding rod, an inclined block, a first spring, a first connecting block and other components, a movable connecting piece drives internal components to move, when the inclined block makes contact with the surface of the first connecting block, the inclined block drives the sliding rod to slide in a sliding groove through the inclined faces of the first connecting block and the inclined block, and the first spring is compressed; and the first spring is reset, the sliding rod and the inclined block are driven to reset, and the first connecting block is limited, so that the effect of locking after the machine body is installed can be achieved, the machine body can be conveniently disassembled while the machine body installation strength is enhanced, and the machine body is prevented from shaking and falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of dust samplers, in particular to a dust sampler. Background Art

[0002] A dust sampler is a portable device for collecting dust samples in dusty air. It measures the dust concentration in the air. In addition to the needs of safe production management, it also provides a scientific basis for the research of dust prevention, dust reduction and dust removal measures. Measuring dust with a sampler is a recognized method with high accuracy. It is widely used in health monitoring and evaluation in disease prevention, environmental monitoring, labor protection, safety supervision, military, scientific research and teaching, metallurgy, petrochemical, railways, building materials and other departments. It is specifically used to measure the average dust concentration in the air in the workplace of production teams.

[0003] After searching, a dust sampler disclosed in a Chinese patent with publication number CN219828419U has the following technical points: it solves the problem that the dust sampler body is heavy and has an unstable center of gravity during use, and the stability cannot be improved as needed; and during the lifting and lowering of the bracket, the contact position of the three supporting legs with the bottom surface will change, and the firmness of the connection between the bottom of the supporting legs and the ground cannot be guaranteed; the stability and firmness of the placement are not good, and the bracket is inconvenient to carry.

[0004] However, the above-mentioned scheme and the existing dust sampler both adopt a connection method of placing the sampler on the top of the bracket, without any limiting or fixed connection method. The sampler may fall off and fall to the ground due to external force or human factors, which may easily cause damage to the sampler. In addition, in the existing sampler, after the cutter is installed with bolts, the cutter cannot be supported and is entirely supported by the threads at the bottom of the connecting piece, which causes great damage to the threads.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0006] In view of the above-mentioned background technology, the prior art has the disadvantage that it does not adopt any limiting and fixed connection method, which may cause the sampler to fall off and fall to the ground due to external force or human factors, thereby easily causing the sampler to be damaged.

[0007] The utility model discloses a dust sampler, comprising a connecting piece and a fixed rod, the inner wall of the connecting piece is provided with sliding grooves arranged at equal distances, the inner wall of each sliding groove is slidably connected with a sliding rod and an inclined block, a side of each inclined block away from each other is fixedly connected with a spring, the other end of each spring is fixedly connected to the inner wall of the corresponding sliding groove, an end of each sliding rod close to each other is fixedly connected to a side of the corresponding inclined block away from each other, and the top end of the fixed rod is fixedly connected with a connecting block.

[0008] Furthermore, a second spring is fixedly connected to the inner top wall of the connecting member, and a bottom end of the second spring is fixedly connected to a limiting block.

[0009] Furthermore, the bottom end of the fixing rod is fixedly connected to a base, the outer surface of the fixing rod is slidably connected to a second connecting block, and the bottom surface of the base is fixedly connected to a supporting frame.

[0010] Furthermore, the upper surface of the connecting member is fixedly connected to a body, a handle is fixedly installed on the upper surface of the body, a threaded member is fixedly connected to the upper surface of the body, and a connecting rod is threadedly connected to the outer surface of the threaded member.

[0011] Furthermore, a cutter is threadedly connected to the inner wall of the connecting rod, and a rotating frame is rotatably connected to the outer surface of the connecting rod.

[0012] Furthermore, sleeves 1 arranged at equal distances are fixedly connected inside the rotating frame, and sleeves 2 are slidably connected to the inner wall of each sleeve 1.

[0013] Furthermore, the top end of each sleeve two is fixedly connected to a spring three, and the top end of each spring three is fixedly connected to the inner top wall of the corresponding sleeve one.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model sets a sliding rod, an inclined block, a spring 1, a connecting block 1 and other components, and the mobile connecting member drives the internal components to move. When the inclined block contacts the surface of the connecting block 1, the inclined block drives the sliding rod to slide inside the sliding groove through the connecting block 1 and the inclined surface of the inclined block, and compresses the spring 1. When the inclined block exceeds the position of the connecting block 1, the spring 1 is reset and drives the sliding rod and the inclined block to reset, limiting the connecting block 1, thereby achieving the effect of locking the body after installation, enhancing the installation strength of the body while ensuring that the body can be easily disassembled to prevent the body from shaking and falling.

[0016] 2. The utility model sets a rotating frame, sleeve one, sleeve two, spring three and other components, and connects the connecting rod with the threaded part by rotating the connecting rod, and the cutter is installed on the top of the connecting rod through a threaded connection. At this time, the connecting rod drives the rotating frame to move, and the rotating frame drives sleeve one to move downward. At this time, the bottom end of sleeve two contacts with the surface of the body, and sleeve two rises to compress spring three. The supporting effect of the connecting rod is achieved by the rotating frame, sleeve one, sleeve two and spring three, and then the supporting effect of the cutter is achieved to prevent the cutter from shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection relationship between the base and the support frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection relationship between the inclined block and the sliding rod of the utility model;

[0021] Figure 4 It is a schematic structural diagram of the connection relationship between the sleeve 2 and the spring 3 of the utility model.

[0022] In the figure: 1. Connecting piece; 2. Sliding groove; 3. Sliding rod; 4. Oblique block; 5. Spring 1; 6. Base; 7. Fixed rod; 8. Connecting block 1; 9. Spring 2; 10. Limiting block; 11. Connecting block 2; 12. Support frame; 13. Machine body; 14. Handle; 15. Threaded piece; 16. Connecting rod; 17. Cutter; 18. Rotating frame; 19. Sleeve 1; 20. Sleeve 2; 21. Spring 3. DETAILED DESCRIPTION

[0023] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4The utility model provides a dust sampler, including a connecting member 1 and a fixed rod 7. The inner wall of the connecting member 1 is provided with sliding grooves 2 arranged at equal distances. The sliding grooves 2 are positioned through the inner wall of the connecting member 1. The four sliding grooves 2 are evenly distributed. The inner wall of each sliding groove 2 is slidably connected with a sliding rod 3 and an inclined block 4. The sliding rod 3 and the inclined block 4 are placed inside the sliding groove 2, and the sliding rod 3 and the inner wall of the inclined block 4 are slidably connected. The sliding rod 3 is limited by a circular block fixed at the other end of the sliding rod 3. The limiting effect of the inclined block 4 is achieved by the inner wall of the sliding groove 2. Each side of the inclined block 4 away from each other is fixedly connected with a spring 5. The spring 5 is installed on the side of the corresponding inclined block 4 away from each other to achieve the positioning and installation effect of the spring 5.

[0025] In a preferred embodiment, the other end of each spring 15 is fixedly connected to the inner wall of the corresponding sliding groove 2, and the other end of the spring 15 is fixed to the inner wall of the corresponding sliding groove 2 to achieve a limiting effect on the spring 15. The resetting of the spring 15 achieves a resetting effect of the inclined block 4 and the sliding rod 3. The ends of each sliding rod 3 that are close to each other are fixedly connected to the side of the corresponding inclined block 4 that is away from each other. The other end of the sliding rod 3 is fixed to the surface of the corresponding inclined block 4 to achieve an effect of connecting the inclined block 4 and the sliding rod 3. The resetting of the spring 15 first drives the inclined block 4 to be reset, and the inclined block 4 and the sliding rod 3 are connected. The fixing between them realizes the effect that the inclined block 4 drives the sliding rod 3 to reset. The top of the fixed rod 7 is fixedly connected with a connecting block 8. The connecting block 8 is placed on the top of the fixed rod 7, and the surface slope of the connecting block 8 is adapted to the slope of the inclined block 4. The inclined block 4 is driven to contact the surface of the connecting block 8 by moving the connecting piece 1, and the effect of the inclined block 4 moving inside the sliding groove 2 is realized by the connecting block 8. When the inclined block 4 exceeds the range of the connecting block 8, the spring 5 is used to realize the effect of resetting the inclined block 4 and locking the connecting block 8, thereby realizing the effect that the device can connect the connecting piece 1 with the connecting block 8.

[0026] like Figure 3 As shown, the inner top wall of the connecting member 1 is fixedly connected with a spring 29, and the spring 29 is installed on the inner top wall of the connecting member 1 to achieve the positioning and installation effect of the spring 29, and the bottom end of the spring 29 is fixedly connected with a limiting block 10, and the limiting block 10 is placed at the bottom end of the spring 29, and the limiting block 10 is tightened by resetting the spring 29, and a bolt is placed on the internal thread connection of the connecting member 1, and the bolt is connected to the limiting block 10 by rotating the bolt to achieve the effect of tightening the limiting block 10, and ensure that after the inclined block 4 is connected to the connecting block 1 8, the connecting member 1 will not continue to slide down, and the bolt is loosened to release the connection with the limiting block 10, so that the connecting member 1 can drive the inclined block 4 to continue to slide down.

[0027] In this embodiment, the bottom end of the fixing rod 7 is fixedly connected with a base 6, and the base 6 is placed on the bottom end of the fixing rod 7 to achieve a supporting effect on the fixing rod 7 and a limiting effect on the fixing rod 7. The outer surface of the fixing rod 7 is slidably connected with a connecting block 2 11, and the connecting block 2 11 is placed on the surface of the fixing rod 7 for sliding connection. When the connecting member 1 continues to be pressed down, the connecting block 2 11 can be driven to rise through the adaptation of the inclined block 4 and the surface of the connecting block 2 11. When the connecting block 2 11 contacts the connecting block 1 8, the inclined block 4 directly passes over the connecting block 1 8 to achieve the effect of pulling out the connecting member 1. The bottom surface of the base 6 is fixedly connected with a support frame 12, and the support frame 12 is installed on the bottom surface of the base 6. The support frame 12 can adjust the support height to achieve the effect of supporting the base 6 and the upper components.

[0028] In this embodiment, the upper surface of the connecting member 1 is fixedly connected to the body 13, and the body 13 is installed on the surface of the connecting member 1 to achieve a positioning and installation effect of the body 13; a handle 14 is fixedly installed on the upper surface of the body 13, and the handle 14 is installed on the surface of the body 13, and the body 13 is easy to lift through the handle 14, so that the body 13 can be lifted and moved alone; a threaded member 15 is fixedly connected to the upper surface of the body 13, and the threaded member 15 is fixedly connected to the surface of the body 13 to achieve a positioning effect of the threaded member 15; a connecting rod 16 is threadedly connected to the outer surface of the threaded member 15, and the connecting rod 16 is installed and threadedly connected to the threaded member 15, and a limiting effect of the connecting rod 16 is achieved through the threaded member 15.

[0029] Combination Figure 1 and Figure 2 The inner wall of the connecting rod 16 is threadedly connected with a cutter 17, and the connecting part at the bottom end of the cutter 17 is threadedly connected to the inner wall of the connecting rod 16 to achieve the installation effect of the cutter 17. The cutter 17 is divided into multiple layers, which can be used in combination with multiple layers or used alone. The connecting rod 16 is used to achieve the support effect of the cutter 17. The outer surface of the connecting rod 16 is rotatably connected with a rotating frame 18, and the rotating frame 18 is installed and rotatably connected to the surface of the connecting rod 16 to achieve the positioning effect of the rotating frame 18.

[0030] In a preferred embodiment, the interior of the rotating frame 18 is fixedly connected with sleeves 19 arranged at equal distances. The sleeves 19 are placed inside the rotating frame 18 to achieve a fixing effect on the sleeves 19. The inner wall of each sleeve 19 is slidably connected with a sleeve 20. The inner wall of the sleeve 19 is provided with a cavity. The sleeve 20 is placed inside the cavity to slide, and the sleeve 20 is limited by the inner wall of the cavity.

[0031] In this embodiment, the top of each sleeve 20 is fixedly connected with a spring 3 21, and the spring 3 21 is installed at the top of the sleeve 20 to achieve the positioning effect of the spring 3 21. The top of each spring 3 21 is fixedly connected to the inner top wall of the corresponding sleeve 19, and the other end of the spring 3 21 is connected to the inner top wall of the sleeve 19. The secondary limiting of the spring 3 21 is achieved through the inner wall of the cavity and the inner top wall of the sleeve 19, and the effect of mutual tightening between the sleeve 20 and the body 13 is achieved through the spring 3 21.

[0032] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A dust sampler, comprising a connecting piece (1) and a fixing rod (7), characterized in that: The inner wall of the connecting member (1) is provided with sliding grooves (2) arranged at equal distances, the inner wall of each sliding groove (2) is slidably connected to a sliding rod (3) and an inclined block (4), a side of each inclined block (4) away from each other is fixedly connected to a spring (5), the other end of each spring (5) is fixedly connected to the inner wall of the corresponding sliding groove (2), the end of each sliding rod (3) close to each other is fixedly connected to the side of the corresponding inclined block (4) away from each other, and the top end of the fixed rod (7) is fixedly connected to a connecting block (8).

2. A dust sampler according to claim 1, characterized in that: The inner top wall of the connecting member (1) is fixedly connected to a second spring (9), and the bottom end of the second spring (9) is fixedly connected to a limiting block (10).

3. A dust sampler according to claim 1, characterized in that: The bottom end of the fixing rod (7) is fixedly connected to a base (6), the outer surface of the fixing rod (7) is slidably connected to a second connecting block (11), and the bottom surface of the base (6) is fixedly connected to a supporting frame (12).

4. A dust sampler according to claim 1, characterized in that: The upper surface of the connecting member (1) is fixedly connected to a body (13), a handle (14) is fixedly installed on the upper surface of the body (13), a threaded member (15) is fixedly connected to the upper surface of the body (13), and a connecting rod (16) is threadedly connected to the outer surface of the threaded member (15).

5. A dust sampler according to claim 4, characterized in that: The inner wall of the connecting rod (16) is threadedly connected to a cutter (17), and the outer surface of the connecting rod (16) is rotatably connected to a rotating frame (18).

6. A dust sampler according to claim 5, characterized in that: The interior of the rotating frame (18) is fixedly connected with sleeves 1 (19) arranged at equal distances, and the inner wall of each sleeve 1 (19) is slidably connected with sleeve 2 (20).

7. A dust sampler according to claim 6, characterized in that: The top end of each sleeve two (20) is fixedly connected to a spring three (21), and the top end of each spring three (21) is fixedly connected to the inner top wall of the corresponding sleeve one (19).

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