Smoke dust sampling gun fixing claw
By designing the smoke sampling gun fixing claw, using the sliding clamping and bolt locking of the outer clamp arm and the inner clamp arm, combined with a ruler and a telescopic tape measure, the problem of fixing the sampling gun on different flanges is solved, and the sampling accuracy and safety are improved.
Patent Information
- Application Number
- CN202422523348.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-18
AI Technical Summary
Existing smoke sampling guns are difficult to fix on sampling port flanges of different sizes, and high-altitude operations pose safety hazards, affecting sampling accuracy and long-term monitoring.
A smoke sampling gun fixing claw is designed. The clamping force is provided by sliding clamping of an outer clamp arm and an inner clamp arm in combination with first and second bolts. The extended length of the sampling gun is measured by a ruler and a telescopic tape measure to achieve fixed-size clamping and fixation of the sampling gun.
The sampling gun can be firmly fixed on the flanges of sampling ports of different models, which reduces the safety hazards of manual operation, improves the sampling accuracy and facilitates long-term monitoring.
Smart Images
Figure CN223361856U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smoke sampling, in particular to a fixing claw of a smoke sampling gun. Background Art
[0002] Currently, my country's primary thermal energy source still comes from coal combustion, which produces smoke and dust that pollutes the atmosphere. When environmental inspectors collect smoke and dust samples from chimneys, they often use scaffolding at high altitudes and manual dragging to collect samples from lower locations. This process poses numerous safety risks and is not conducive to long-term monitoring of the sampling site.
[0003] In addition, the sampling positions of existing sampling guns are mostly high-altitude chimneys or blast furnace exhaust ports of chemical equipment. On the one hand, the positions are relatively high. On the other hand, the screw holes of the existing sampling port flanges are of different sizes, and the sampling gun is difficult to fix on the sampling port flange by welding, resulting in the problem that the sampling gun is difficult to fix at the sampling port.
[0004] Therefore, how to design a smoke sampling gun fixing claw that can clamp and fix the sampling gun at the sampling port without manual dragging has become a technical problem that needs to be solved urgently by people in this field. Utility Model Content
[0005] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a smoke sampling gun fixing claw, which can clamp and fix the sampling gun at a fixed depth at a sampling port, and has a simple structure and is easy to implement.
[0006] The utility model provides a fixing claw for a smoke sampling gun, comprising an outer clamp arm and an inner clamp arm, wherein one end of the outer clamp arm and the inner clamp arm are both formed with a clamping claw that bends downward and cooperates for clamping, wherein the other end of the outer clamp arm slides through and connects to the inner clamp arm, and a guide groove is provided in the middle of the outer clamp arm for vertical constraint and horizontal sliding hooking of the inner clamp arm; the other end of the inner clamp arm is provided with a scale.
[0007] Preferably, the inner vertical thread of the inner clamp arm located in the positive projection area of the outer clamp arm is penetrated by a first bolt, and the horizontal thread on the clamping jaw of the inner clamp arm is penetrated by a second bolt; the first bolt vertically adjusts and locks the outer clamp arm and the inner clamp arm to tighten; the second bolt tightens the object to be clamped between the two clamping jaws of the outer clamp arm and the inner clamp arm, and the clamping force between the two clamping jaws is provided by the second bolt.
[0008] Preferably, the guide groove is opened transversely on both sides of the outer clamp arm; hook-shaped guide blocks bent upward are welded and fixed on both sides of the inner clamp arm, and the ends of the guide blocks slide transversely and are vertically limited and inserted into the guide groove to provide reaction force for the vertical support and locking of the first bolt.
[0009] Preferably, the scale includes a fixed scale and a telescopic tape measure, wherein the scale of the fixed scale is made on the side wall of the inner clamp arm, with the clamping claw end of the inner clamp arm as the zero point; the telescopic tape measure is inserted into the end of the inner clamp arm that is outside the positive projection range of the outer clamp arm, and the zero point of the telescopic tape measure is the free end of the telescopic tape measure. When measuring, the radial dimension of the sampling gun extending out of the sampling port flange is read by the sum of the scale values of the fixed scale and the telescopic tape measure.
[0010] Preferably, a connecting nut is welded and fixed to the top of the outer clamp arm, and a vertical thread inside the connecting nut is connected to a base screw supporting the smoke sampling gun.
[0011] The advantages and technical effects of the utility model are:
[0012] The utility model discloses a fixing claw of a smoke sampling gun, which clamps a sampling port by sliding an outer clamp arm and an inner clamp arm in opposite directions, wherein a first bolt is used to fix the inner clamp arm at the lower part of the outer clamp arm, and a second bolt is used to clamp and tighten the sampling port between the two clamp jaws and provide a clamping force. During this process, a guide block of the inner clamp arm slides inside a guide groove of the outer clamp arm, on the one hand providing a sliding guide for the inner clamp arm inside the outer clamp arm, and on the other hand providing a restraining force for vertical hanging of the inner clamp arm. The restraining force serves as a reaction force of the first bolt pressing the inner clamp arm and the outer clamp arm together, and is firm and reliable. In addition, the radial extension length of the sampling gun and the sampling port is read by reading the fixed scale and the telescopic tape measure on the inner clamp arm, so as to control the depth of the sampling end of the sampling gun protruding into the sampling port flange, and the fixed scale is combined with the telescopic tape measure with a retractable length controllable length to measure the radial extension length of sampling guns of different models and different lengths. Finally, a connecting nut fixed to the top of the outer clamp arm by welding provides a connection position for the sampling gun, facilitating the fixed connection of the sampling gun and the outer clamp arm. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 It is a side view of the utility model;
[0015] Figure 3 for Figure 2 Cross-sectional view at AA in the middle;
[0016] Figure 4 This is a schematic diagram of the use of the utility model clamped on the sampling port flange to support and position the sampling gun;
[0017] In the figure: 1-outer clamp arm; 2-guide groove; 3-guide block; 4-second bolt; 5-first bolt; 6-connecting nut; 7-inner clamp arm; 8-fixed scale; 9-telescopic tape measure; 10-clamping jaw; 11-sampling gun; 12-sampling gun bracket; 13-base screw; 14-tightening nut; 15-sampling port flange. DETAILED DESCRIPTION
[0018] The following describes in detail embodiments of the utility model. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the utility model and are not to be construed as limiting the utility model.
[0019] The utility model provides a fixed claw for a smoke sampling gun, comprising an outer clamp arm 1 and an inner clamp arm 7, wherein one end of the outer clamp arm and the inner clamp arm are both formed with a clamping claw 10 that bends downward and cooperates in clamping, wherein the other end of the outer clamp arm slides through and connects to the inner clamp arm, and a guide groove 2 is provided in the middle of the outer clamp arm for vertical constraint and horizontal sliding hooking of the inner clamp arm; a scale is provided at the other end of the inner clamp arm.
[0020] Preferably, the inner vertical thread of the inner clamp arm located in the positive projection area of the outer clamp arm is penetrated and connected with a first bolt 5, and the horizontal thread on the clamping jaw of the inner clamp arm is penetrated and connected with a second bolt 4; the first bolt vertically adjusts and locks the outer clamp arm and the inner clamp arm to tighten; the second bolt tightens the object to be clamped between the two clamping jaws of the outer clamp arm and the inner clamp arm, and the clamping force between the two clamping jaws is provided by the second bolt.
[0021] Preferably, the guide groove is opened transversely on both sides of the outer clamp arm; both sides of the inner clamp arm are welded with a hook-shaped and upwardly bent guide block 3, the end of the guide block slides transversely and is vertically limited and inserted into the guide groove to provide a reaction force for the vertical support and locking of the first bolt.
[0022] Preferably, the scale includes a fixed scale 8 and a telescopic tape 9, wherein the scale of the fixed scale is made on the side wall of the inner clamp arm, with the clamping end of the inner clamp arm as the zero point; the telescopic tape is inserted into the end of the inner clamp arm that is outside the positive projection range of the outer clamp arm, and the zero point of the telescopic tape is the free end of the telescopic tape. When measuring, the radial dimension of the sampling gun 11 extending out of the sampling port flange 15 is read by the sum of the scale values of the fixed scale and the telescopic tape.
[0023] Preferably, a connecting nut 6 is welded and fixed to the top of the outer clamp arm, and the connecting nut is vertically threadedly connected to the base screw 13 that supports the smoke sampling gun.
[0024] In order to more clearly describe the specific implementation of the present invention, an embodiment is provided below:
[0025] The utility model relates to a smoke sampling gun fixing claw, which is used in a connected state. Figure 4 As shown, Figure 4In this design, the outer arm of the sampling gun's fixed jaws is attached to the inner circumferential wall of the sampling port flange, while the inner arm of the sampling gun's fixed jaws rests against the outer circumferential wall of the sampling port flange. This opposing clamping structure radially clamps the flange edge at the flange opening of the sampling port. During this process, the first bolt locks the inner and outer arms together to prevent relative sliding; the second bolt presses the outer wall of the sampling port flange between the two jaws to provide clamping force.
[0026] It should be noted that Figure 4 The sampling gun bracket 12, base screw 13 and tightening nut 14 shown are all mature products in the prior art. Figure 4 The central base screw is threadedly connected to the connecting nut, which is welded to the top surface of the outer clamp arm and serves as a fixed connection between the base screw and the outer clamp arm. A jacking nut is then threaded onto the base screw, axially supporting the top surface of the connecting nut to ensure a stable connection between the base screw and the sampling gun bracket. Finally, the sampling gun is fixedly mounted using a conventional sampling gun bracket using multiple nuts on the base screw. Finally, a telescopic tape measure is dragged according to the length of the sampling gun to read the radial dimension of the sampling gun extending from the sampling port flange using the sum of the scale values on the fixed scale and the telescopic tape measure.
[0027] Finally, all the unmentioned parts of the utility model adopt mature products and mature technical means in the existing technology.
[0028] In the description of this specification, reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in the embodiment or example of the utility model.
[0029] Although embodiments of the utility model have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and intent of the utility model, and that the scope of the utility model is defined by the claims and their equivalents.
Claims
1. A smoke sampling gun fixing claw, characterized by: It includes an outer clamp arm and an inner clamp arm, wherein one end of the outer clamp arm and the inner clamp arm are each formed with a downward-bending and cooperating clamping claw, wherein the other end of the outer clamp arm slides through and connects to the inner clamp arm, and the middle part of the outer clamp arm is provided with a guide groove for vertical constraint and horizontal sliding hanging of the inner clamp arm; the other end of the inner clamp arm is provided with a scale.
2. The fixing claw of a smoke sampling gun according to claim 1, characterized in that: The inner vertical thread of the inner clamp arm located in the positive projection area of the outer clamp arm is penetrated by a first bolt, and the horizontal thread on the clamping jaw of the inner clamp arm is penetrated by a second bolt; the first bolt vertically adjusts and locks to tighten the outer clamp arm and the inner clamp arm; the second bolt tightens the object to be clamped between the two clamping jaws of the outer clamp arm and the inner clamp arm, and the clamping force between the two clamping jaws is provided by the second bolt.
3. The fixing claw of a smoke sampling gun according to claim 2, characterized in that: The guide groove is horizontally opened on both sides of the outer clamp arm; hook-shaped and upwardly bent guide blocks are welded and fixed on both sides of the inner clamp arm, and the end of the guide block slides horizontally and is vertically limited and inserted into the guide groove to provide a reaction force for the vertical support and locking of the first bolt.
4. The fixing claw of a smoke sampling gun according to claim 1, characterized in that: The scale includes a fixed scale and a telescopic tape measure, wherein the scale of the fixed scale is made on the side wall of the inner clamp arm, with the clamping claw end of the inner clamp arm as the zero point; the telescopic tape measure is inserted into the end of the inner clamp arm located outside the positive projection range of the outer clamp arm, and the zero point of the telescopic tape measure is the free end of the telescopic tape measure. When measuring, the radial dimension of the sampling gun extending out of the sampling port flange is read by the sum of the scale values of the fixed scale and the telescopic tape measure.
5. The smoke sampling gun fixing claw according to claim 1, characterized in that: A connecting nut is welded and fixed on the top of the outer clamp arm, and a vertical thread inside the connecting nut is connected to a base screw supporting the smoke sampling gun.