Safety protection device of blasting equipment in pressure test

Abstract

The utility model discloses a safety protection device of blasting equipment in a pressure test, which comprises an equipment base and a protective cover, the equipment base is provided with a guide shaft, the protective cover is provided with a linear bearing which is matched with the protective cover in a sliding manner, and the linear bearing is provided with a guide shaft. The protective cover is installed on the equipment base in a sliding mode through cooperation of the linear bearing and the guide shaft. According to the technical scheme, the linear bearing is adopted to replace a traditional exposed rotating bearing, main parts of the linear bearing are located in the linear bearing, the internal structure of the linear bearing cannot be directly damaged by shock waves during pressure testing, the problem that the main parts are corroded by liquid such as water even if the main parts are not exposed in air can be solved, and the service life of the linear bearing is prolonged; and the guide shaft is matched with the linear bearing for use, a traditional guide rail structure with a groove in channel steel is replaced, and the problems of blockage and the like due to the fact that no groove exists are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blasting equipment, and particularly relates to a safety protection device for a blasting equipment in pressure testing. Background Art

[0002] When traditional blasting equipment inspects products, it is necessary to detect the pressure resistance of each product. The pressure-resistant medium is usually water, compressed air, etc. There are some safety operation problems during product testing. For example, when installing a test sample, it is necessary to protect the sample with a protective cover. The protective cover slides by relying on the channel steel and bearings below during the pushing and pulling process. It is exposed to the air for a long time, and there are phenomena such as rust and blockage by sundries that make it impossible to push and pull; during the pressure blasting test, the shock wave generated by the blasting impacts both the protective cover and the guide rail, which may cause damage to the bearings below;

[0003] In addition, during the actual operation process, sometimes the pressure test is started without installing a protective cover above the test sample for shielding, and the explosion instantaneously affects the surrounding environment and personnel safety. Summary of the Utility Model

[0004] In order to solve the technical problems existing in the background art, such as blockage of sundries in the guide rail during the pushing and pulling process of the protective cover on the blasting equipment, and damage to the exposed bearings caused by shock waves, the purpose of the utility model is to provide a safety protection device for a blasting equipment in pressure testing, which can solve the above problems.

[0005] The technical solution to achieve the purpose of the utility model is: a safety protection device for a blasting equipment in pressure testing, including an equipment base and a protective cover. The equipment base is provided with a guide shaft, and the protective cover is provided with a linear bearing that cooperates with the protective cover for sliding. The protective cover is slidably installed on the equipment base through the cooperation of the linear bearing and the guide shaft.

[0006] In this technical solution, a linear bearing is used to replace the traditional exposed rotating bearing. The main components of the linear bearing are located inside it, so the shock wave during pressure testing will not directly damage its internal structure. The main components are not exposed to the air, which can also prevent the problem of rusting by liquids such as water, and extend its service life; and the guide shaft used in cooperation with the linear bearing replaces the traditional channel steel with a grooved guide rail structure. Without grooves, there will be no problem of blockage by product debris. The structure of this device is simple. The existing linear bearing is used to replace the general rotating bearing exposed outside the traditional one. It is simple to manufacture and convenient to operate. They are all commonly used components at present, and the replacement and maintenance are also relatively convenient, which can effectively solve this technical problem existing in the current pressure testing of blasting equipment.

[0007] Furthermore, the guiding shaft is made of stainless steel. Since the guiding shaft is exposed, it will come into contact with liquids such as water during pressure tests. Using a guiding shaft made of stainless steel can effectively prevent rust problems.

[0008] Furthermore, the guiding shaft is in the shape of a long cylindrical bar, that is, there is no groove structure, completely preventing the problem of debris blockage.

[0009] Furthermore, it also includes a positioning pin. The equipment base has a first positioning hole, and the protective cover has a second positioning hole corresponding to the first positioning hole. The positioning pin is inserted into the first positioning hole and the second positioning hole. After the protective cover is pulled to the designated position, inserting the positioning pin into the first positioning hole and the second positioning hole plays a role in locking the protective cover, preventing it from loosening and opening, and failing to play a protective role.

[0010] Furthermore, it also includes an equipment control box. The positioning pin is made of metal. A magnetic switch is installed in the first positioning hole. The magnetic switch is connected to a relay, and the relay is electrically connected to the equipment control box. When the positioning pin is inserted into the first positioning hole, the metal positioning pin contacts the magnetic switch, the magnetic switch conducts and connects to the relay, sending a switch signal into the equipment control box, and through the machine PLC control system for intelligent control, the blasting equipment can only perform pressure tests. Without a trigger signal, the equipment cannot perform pressure tests, protecting the on-site operators and preventing the shock wave from causing harm to people during the pressure test of the blasting equipment.

[0011] Furthermore, there are at least two first positioning holes, and at least two of the relays are connected in series. That is to say, the equipment has multiple relays connected in series. As long as one magnetic switch does not conduct, it means that the protective cover is not in place safely, and the blasting equipment cannot enter the next step, namely the pressure test, further improving the protection function.

[0012] Furthermore, an impact-resistant rubber sleeve is sleeved on the positioning pin, which is anti-friction and can also play an impact-resistant role, extending the service life.

[0013] Furthermore, the first positioning hole is arranged below the equipment base, away from the inner cavity of the blasting equipment, preventing water and other liquids from splashing in during the pressure test and causing damage to sensors, etc.

[0014] Adopting the above technical solutions, the present utility model has the following beneficial effects:

[0015] (1) Using the cooperation of linear bearings and guiding shafts to replace the cooperation of traditional rolling bearings and guide rails, solving the problems of easy debris blockage in guide rails with grooves, and the rolling bearings being exposed and vulnerable to shock wave damage and rust problems, etc.;

[0016] (2) A magnetic switch is arranged in the first positioning hole. When a positioning pin made of metal is inserted, the switch will be turned on and a signal will be sent. Only at this time can the device perform a pressure test, which provides great protection for the safety of the operator.

[0017] (3) Further, the relay devices connected by multiple magnetic switches are in series. As long as one positioning pin is not inserted in place, the device cannot perform a pressure test, which means the protective cover is not closed in place, further protecting the operator.

[0018] (4) An impact-resistant rubber sleeve is installed on the positioning pin, which can resist both friction and the impact of the pressure test, extending the service life. Description of the Drawings

[0019] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments in conjunction with the drawings, where

[0020] Figure 1 is a schematic diagram of the overall structure of the blasting device in the present utility model;

[0021] Figure 2 is a schematic diagram of the side structure of the blasting device in the present utility model;

[0022] Figure 3 is a schematic diagram of the cooperation structure of the guide shaft and the linear bearing in the present utility model.

[0023] The reference numerals in the drawings are: 1 device base; 2 protective cover; 3 guide shaft; 4 linear bearing; 5 first positioning hole; 6 second positioning hole; 7 positioning pin. Detailed Embodiment

[0024] Embodiment:

[0025] As Figures 1 - 3As shown in the figure, this embodiment provides a safety protection device for a blasting device in pressure testing, including a device base 1 and a protective cover 2. The device base 1 is provided with a guide shaft 3, and the protective cover 2 is provided with a linear bearing 4 that slides in cooperation with the protective cover 2. The protective cover 2 is slidably mounted on the device base 1 through the cooperation of the linear bearing 4 and the guide shaft 3. In this technical solution, a linear bearing 4 is used to replace the traditional exposed rotating bearing. The main components of the linear bearing 4 are located inside it, so the shock wave during pressure testing will not directly damage its internal structure. The non-exposure of the main components to the air can also prevent the problem of rust caused by liquids such as water, extending its service life. And the guide shaft 3 used in cooperation with the linear bearing 4 replaces the traditional channel steel with a grooved guide rail structure. Without grooves, there will be no problem of product debris blocking. This device has a simple structure. It uses the existing linear bearing 4 to replace the traditional externally exposed general rotating bearing, etc. It is simple to manufacture and convenient to operate. All are commonly used components at present, and replacement and maintenance are also relatively convenient, which can effectively solve this technical problem existing in the current pressure testing of blasting devices.

[0026] Preferably, the material of the guide shaft 3 is stainless steel. Since the guide shaft 3 is exposed outside and will come into contact with liquids such as water in pressure testing, using a stainless steel guide shaft 3 can effectively prevent the problem of rust. The guide shaft 3 is in the shape of a long cylindrical column, that is, there is no grooved structure, completely preventing the problem of debris blockage.

[0027] Preferably, it further includes a positioning pin 7. The device base 1 is provided with a first positioning hole 5, and the protective cover 2 is provided with a second positioning hole 6 corresponding to the first positioning hole 5. The positioning pin 7 is inserted into the first positioning hole 5 and the second positioning hole 6. After the protective cover 2 is pulled to the designated position, the positioning pin 7 is inserted into the first positioning hole 5 and the second positioning hole 6 to lock the protective cover 2 and prevent it from loosening and opening, so that it cannot play a protective role. An impact-resistant rubber sleeve is sleeved on the positioning pin 7, which has anti-friction and can also play an impact-resistant role, extending the service life.

[0028] Preferably, it further includes an equipment control box. The positioning pin 7 is made of metal. A magnetic switch is installed in the first positioning hole 5. The magnetic switch is connected to a relay, and the relay is electrically connected to the equipment control box. When the positioning pin 7 is inserted into the first positioning hole 5, the metal positioning pin 7 contacts the magnetic switch, the magnetic switch is turned on and connected to the relay, and a switch signal is sent into the equipment control box and intelligently controlled by the machine PLC control system. Only then can the blasting equipment perform a pressure test. Without a trigger signal, the equipment cannot perform a pressure test, which plays a protective role for the on-site operators and prevents the shock wave from causing harm to people during the pressure test of the blasting equipment. There are at least two first positioning holes 5, and at least two of the relays are connected in series. That is to say, the equipment has multiple relays connected in series. As long as one magnetic switch is not turned on, it means that the protective cover 2 is not in place safely, and the blasting equipment cannot enter the next step, that is, the pressure test, further improving the protection function.

[0029] Preferably, the first positioning hole 5 is arranged below the equipment base 1 and away from the inner cavity of the blasting equipment to prevent liquids such as water from splashing in during the pressure test and causing damage to sensors and the like.

[0030] Working principle: When using the blasting equipment for a pressure test, first pull the protective cover 2. The protective cover 2 slides under the cooperation of the linear bearing 4 and the guide shaft 3. Then, after sliding to the designated position, insert the positioning pin 7 into the first positioning hole 5 and the second positioning hole 6. After multiple positioning pins 7 are inserted in place and multiple magnetic switches are connected to the relay and turned on, the equipment control box can receive the PLC control signal and then start the equipment for a pressure test.

[0031] In the above specific embodiments, the purpose, technical solutions, and beneficial effects of the present invention have been further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A safety protection device for blasting equipment in pressure testing, characterized in that: The invention comprises an equipment base (1) and a protective cover (2), wherein the equipment base (1) is provided with a guide shaft (3), and the protective cover (2) is provided with a linear bearing (4) which cooperates and slides with the protective cover (2), and the protective cover (2) is installed on the equipment base (1) through the cooperation and sliding of the linear bearing (4) and the guide shaft (3).

2. A safety protection device for blasting equipment in pressure testing according to claim 1, characterized in that: The guide shaft (3) is made of stainless steel.

3. A safety protection device for blasting equipment in pressure testing according to claim 1, characterized in that: The guide shaft (3) is in the shape of an elongated cylinder.

4. A safety protection device for blasting equipment in pressure testing according to claim 1, characterized in that: It also includes a positioning pin (7), the device base (1) has a first positioning hole (5), the protective cover (2) has a second positioning hole (6) corresponding to the first positioning hole (5), and the positioning pin (7) is inserted into the first positioning hole (5) and the second positioning hole (6).

5. A safety protection device for blasting equipment in pressure testing according to claim 4, characterized in that: It also includes a device control box, the positioning pin (7) is made of metal, a magnetic switch is installed in the first positioning hole (5), the magnetic switch is connected to a relay, and the relay is electrically connected to the device control box.

6. A safety protection device for explosion equipment in pressure testing according to claim 5, characterized in that: There are at least two first positioning holes (5), and at least two relays are connected in series.

7. A safety protection device for explosion equipment in pressure testing according to claim 4, characterized in that: The positioning pin (7) is sleeved with an impact-resistant rubber sleeve.

8. A safety protection device for blasting equipment in pressure testing according to claim 4, characterized in that: The first positioning hole (5) is arranged below the equipment base (1) and away from the inner cavity of the blasting equipment.

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