Sampler for engineering supervision
By designing an automatically retractable sampler, the problems of cement bag damage and sample mixing were solved, achieving efficient independent sampling and accurate storage, thus improving the efficiency and data accuracy of the sampler used in engineering supervision.
Patent Information
- Application Number
- CN202520210654.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing engineering supervision samplers are prone to damaging cement bags during the sampling process, resulting in waste and sample mixing, which affects the accuracy of testing. Furthermore, cleaning is time-consuming and reduces efficiency.
A sampler was designed, comprising a positioning post, sleeve, fixing plate, storage tube, limiting rod, sampling tube, baffle, support spring, electric push rod, and servo motor. Through the cooperation of the electric push rod and servo motor, the sampling tube can be automatically extended and retracted, avoiding cleaning and ensuring that each sample is stored independently.
It improved sampling efficiency, reduced damage to cement bags, ensured independent storage of samples, improved the accuracy of test data, and saved working time.
Smart Images

Figure CN223841529U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sampler technology, and in particular to a sampler for engineering supervision. Background Technology
[0002] Cement sampling is an important part of the supervision work during construction. According to relevant national technical standards and specifications, cement samples with the same number must be collected from different locations.
[0003] Traditionally, sampling bagged cement involved breaking the bags with a shovel. Since multiple bags needed to be sampled, this method resulted in the destruction of numerous bags, leading to significant cement spillage and waste, and impacting storage. While penetrating samplers are currently used, each sampling requires emptying the cement from the sampling tube into a sample tube for storage, and the tube must be thoroughly cleaned before the next sampling. Inadequate cleaning can cause sample mixing within the tube, affecting the accuracy of the test data. This process is time-consuming and inefficient. Therefore, we propose a sampler for engineering supervision. Utility Model Content
[0004] The main purpose of this utility model is to provide a sampler for engineering supervision, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A sampler for engineering supervision includes a positioning column, a sleeve mounted on the outer surface of the positioning column via a bearing, a fixing plate fixedly connected to the outer surface of the sleeve, a receiving tube fixedly connected to the fixing plate, a limiting rod inserted into the inside of the receiving tube, a sampling tube fixedly connected to one end of the limiting rod, and a baffle fixedly connected to the end of the limiting rod away from the sampling tube. The baffle and the sleeve are connected by a support spring.
[0007] Preferably, a gear ring is fixedly connected to one end of the sleeve, and a gear is meshed with the outer surface of the gear ring.
[0008] Preferably, the gear is fixedly mounted on the output end of the servo motor, the servo motor is fixedly mounted on the motor mount, and the motor mount is fixedly mounted on the outer surface of the positioning column.
[0009] Preferably, a handle tube is fixedly connected to one end of the positioning column, a support plate is fixedly connected to the outer surface of the handle tube, and a control switch is fixedly installed on the front of the support plate.
[0010] Preferably, an electric push rod is fixedly connected to the back of the support plate, and a push plate is fixedly connected to the end of the electric push rod away from the support plate.
[0011] Preferably, a battery is installed inside the handle tube, and a cover is threaded onto the outer surface of the end of the handle tube away from the positioning post.
[0012] Preferably, the outer surface of the sampling tube is provided with a sampling hole, and a spike is fixedly connected to the end of the sampling tube away from the limiting rod.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The sampling device used in this project supervision system consists of a positioning column, sleeve, fixing plate, receiving tube, limiting rod, sampling tube, baffle, support spring, sampling hole, spike, electric push rod, and push plate. When a cement sample needs to be taken, the worker places the receiving tube against the cement bag, then activates the electric push rod. The electric push rod moves the push plate, which in turn moves the baffle, pushing the sampling tube out of the receiving tube. The sampling tube can then pierce into the cement bag, and cement can enter the sampling tube through the sampling hole. When the push plate releases pressure on the baffle, the sampling tube retracts into the receiving tube under the action of the support spring, thus completing one sampling operation. Sampling: When sampling is required again, the operator can start the servo motor, which drives the gear to rotate, controlling the gear ring to move the next baffle to the corresponding position of the push plate. Then, the electric push rod is started again, and the above operation is repeated to perform secondary sampling. During the sampling process, there is no need to clean the sampling tube, and the samples can be stored, saving working time and greatly improving sampling efficiency. In addition, each sample is sampled and stored separately, which will not cause sample confusion and improve the accuracy of sample data. Furthermore, the sampling tube penetrates into the cement bag, causing minimal damage to the cement bag and facilitating subsequent storage. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the isometric structure of a sampler for engineering supervision according to Embodiment 1 of this utility model;
[0016] Figure 2 This is a right-view axonometric structural diagram of a sampler for engineering supervision according to Embodiment 1 of this utility model;
[0017] Figure 3 This is a cross-sectional isometric structural diagram of a sampler for engineering supervision according to Embodiment 1 of this utility model;
[0018] Figure 4 This is one of the enlarged structural schematic diagrams of a sampler for engineering supervision according to Embodiment 1 of this utility model;
[0019] Figure 5 This is a cross-sectional axonometric structural diagram of the receiving tube in an engineering supervision sampler according to Embodiment 1 of this utility model;
[0020] Figure 6 This is a second partially enlarged structural schematic diagram of a sampler for engineering supervision according to Embodiment 1 of this utility model.
[0021] In the diagram: 1. Positioning post; 2. Sleeve; 3. Fixing plate; 4. Storage tube; 5. Limiting rod; 6. Sampling tube; 7. Baffle; 8. Support spring; 9. Gear ring; 10. Gear; 11. Servo motor; 12. Motor base; 13. Handle tube; 14. Support plate; 15. Control switch; 16. Electric push rod; 17. Push plate; 18. Battery; 19. Cover; 20. Sampling hole; 21. Spike. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] like Figure 1-6 As shown, a sampler for engineering supervision includes a positioning column 1. A sleeve 2 is mounted on the outer surface of the positioning column 1 via a bearing. A fixing plate 3 is fixedly connected to the outer surface of the sleeve 2. A receiving tube 4 is fixedly connected to the fixing plate 3. A limiting rod 5 is inserted into the inside of the receiving tube 4. A sampling tube 6 is fixedly connected to one end of the limiting rod 5. A baffle 7 is fixedly connected to the end of the limiting rod 5 away from the sampling tube 6. The baffle 7 and the sleeve 2 are connected by a support spring 8.
[0025] In practical use, the cement sample is obtained by connecting the positioning post 1, sleeve 2, fixing plate 3, storage tube 4, limiting rod 5, sampling tube 6, baffle 7, support spring 8, sampling hole 20, spike 21, electric push rod 16, and push plate 17. When sampling is required, the worker places the storage tube 4 against the cement bag, then activates the electric push rod 16. The electric push rod 16 moves the push plate 17, pushing the baffle 7 to move and pushing the sampling tube 6 out of the storage tube 4. The sampling tube 6 can then pierce into the cement bag, and cement can enter the sampling tube 6 through the sampling hole 20. When the push plate 17 removes its pressure on the baffle 7, the sampling tube 6 retracts into the storage tube under the action of the support spring 8. Inside the 4th sample, one sampling is completed. When sampling is required again, the operator can start the servo motor 11, which drives the gear 10 to rotate, controlling the gear ring 9 to rotate. This moves the next baffle 7 to the corresponding position of the push plate 17. The electric push rod 16 is then started again, and the above operation is repeated to perform a second sampling. During the sampling process, there is no need to clean the sampling tube 6, and the samples can be stored, saving working time and greatly improving sampling efficiency. In addition, each sample is sampled and stored separately, preventing sample confusion and improving the accuracy of sample data. Furthermore, the sampling tube 6 penetrates the inside of the cement bag, causing minimal damage to the cement bag and facilitating subsequent storage.
[0026] In this embodiment, a gear ring 9 is fixedly connected to one end of the sleeve 2, and a gear 10 is meshed with the outer surface of the gear ring 9.
[0027] In practical use, the gear ring 9 and gear 10 are configured such that the rotation of gear 10 can drive the gear ring 9 to rotate, thereby controlling the rotation of sleeve 2.
[0028] In this embodiment, the gear 10 is fixedly installed at the output end of the servo motor 11, the servo motor 11 is fixedly installed on the motor base 12, and the motor base 12 is fixedly installed on the outer surface of the positioning column 1.
[0029] In practical use, the servo motor 11 provides power for the rotation of the gear 10, and the motor mount 12 makes the servo motor 11 more securely installed.
[0030] In this embodiment, a handle tube 13 is fixedly connected to one end of the positioning post 1, a support plate 14 is fixedly connected to the outer surface of the handle tube 13, and a control switch 15 is fixedly installed on the front of the support plate 14.
[0031] In practical use, the handle tube 13 allows the operator to hold it for easy use of the sampler. The control switch 15 is electrically connected to the servo motor 11 and the electric push rod 16 via wires.
[0032] In this embodiment, an electric push rod 16 is fixedly connected to the back of the support plate 14, and a push plate 17 is fixedly connected to the end of the electric push rod 16 away from the support plate 14.
[0033] In practical use, through the setting of electric push rod 16 and push plate 17, electric push rod 16 can push push plate 17 to move and push baffle 7.
[0034] In this embodiment, a storage battery 18 is installed inside the handle tube 13, a cover 19 is threadedly connected to the outer surface of the end of the handle tube 13 away from the positioning post 1, a sampling hole 20 is opened on the outer surface of the sampling tube 6, and a spike 21 is fixedly connected to the end of the sampling tube 6 away from the limiting rod 5.
[0035] In practical use, the cover 19 can be used to cover and seal the handle tube 13, and the spike 21 can be used to puncture the cement bag during the movement of the sampling tube 6, making it easier to sample the cement.
[0036] Working principle: When a cement sample needs to be taken, the operator attaches the receiving tube 4 to the cement bag and then activates the electric push rod 16. The electric push rod 16 drives the push plate 17 to move, pushing the baffle 7 to move and pushing the sampling tube 6 out of the receiving tube 4. The sampling tube 6 can then penetrate into the cement bag, and the cement can enter the sampling tube 6 through the sampling hole 20. When the push plate 17 removes the pressure on the baffle 7, the sampling tube 6 is retracted into the receiving tube 4 under the action of the support spring 8, thus completing one sampling. When a second sampling is needed, the operator can activate the servo motor 11, which drives the gear 10 to rotate, controlling the gear ring 9 to rotate. This moves the next baffle 7 to the corresponding position of the push plate 17. The electric push rod 16 is then activated again, and the above operation is repeated to perform a second sampling.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sampler for engineering supervision, comprising a positioning column (1), characterized in that: The outer surface of the positioning column (1) is fitted with a sleeve (2) via a bearing. A fixing plate (3) is fixedly connected to the outer surface of the sleeve (2). A receiving tube (4) is fixedly connected to the fixing plate (3). A limiting rod (5) is inserted into the inside of the receiving tube (4). A sampling tube (6) is fixedly connected to one end of the limiting rod (5). A baffle (7) is fixedly connected to the end of the limiting rod (5) away from the sampling tube (6). The baffle (7) and the sleeve (2) are connected by a support spring (8).
2. The sampler for engineering supervision according to claim 1, characterized in that: One end of the sleeve (2) is fixedly connected to a gear ring (9), and a gear (10) is meshed with the outer surface of the gear ring (9).
3. A sampler for engineering supervision according to claim 2, characterized in that: The gear (10) is fixedly installed at the output end of the servo motor (11), the servo motor (11) is fixedly installed on the motor base (12), and the motor base (12) is fixedly installed on the outer surface of the positioning column (1).
4. A sampler for engineering supervision according to claim 1, characterized in that: One end of the positioning column (1) is fixedly connected to a handle tube (13), and a support plate (14) is fixedly connected to the outer surface of the handle tube (13). A control switch (15) is fixedly installed on the front side of the support plate (14).
5. A sampler for engineering supervision according to claim 4, characterized in that: An electric push rod (16) is fixedly connected to the back of the support plate (14), and a push plate (17) is fixedly connected to the end of the electric push rod (16) away from the support plate (14).
6. A sampler for engineering supervision according to claim 4, characterized in that: The handle tube (13) is equipped with a battery (18), and a cover (19) is threaded onto the outer surface of the end of the handle tube (13) away from the positioning post (1).
7. A sampler for engineering supervision according to claim 1, characterized in that: The outer surface of the sampling tube (6) is provided with a sampling hole (20), and a spike (21) is fixedly connected to one end of the sampling tube (6) away from the limiting rod (5).