Rapid separating device for test tool

Abstract

The utility model relates to a rapid separating device for a test tool, and belongs to the technical field of pump cover pressing leakage detection. Comprising a fixing base buckled to an opening in the top of a pressing tool, hook connecting pieces used for being detachably connected with the pressing tool are installed on the two sides of the fixing base, and a manual lifting driving piece used for driving a pump cover to move relative to the pressing tool is installed in the middle of the fixing base. The output end of the bottom of the manual lifting driving piece is fixedly connected with the fixing plate so as to control lifting of the fixing plate, and the fixing plate is detachably connected with the pump cover through a connecting screw. Compared with the prior art, the pump cover lifting device has the advantages that the pump cover lifting device is used for quickly lifting a pump cover, the pump cover can be quickly lifted out of a pressurizing tool by utilizing a manual lifting driving piece, the working efficiency of test workers is greatly improved, and the labor intensity of the workers is reduced.

Description

Technical Field

[0001] The utility model relates to a quick separation device for test tooling, belonging to the technical field of leak detection by pressure testing of pump covers. Background Technique

[0002] A centrifugal pump relies on the action of a rotating impeller on the liquid to transfer the mechanical energy of the prime mover to the liquid. Since the acting liquid increases both its velocity energy and pressure energy during the process of flowing from the impeller inlet to the outlet, the liquid discharged by the impeller passes through the volute chamber, and most of the velocity energy is converted into pressure energy, and then is conveyed out along the discharge pipeline. At this time, a vacuum or low pressure is formed at the impeller inlet due to the discharge of the liquid, and the liquid in the liquid pool at the suction port is pressed into the impeller inlet under the action of the liquid surface pressure (atmospheric pressure). Thus, the rotating impeller continuously sucks in and discharges the liquid.

[0003] After retrieval, a patent application with the patent number CN202321678435.2 discloses a pressure testing device for a water pump pump cover, belonging to the technical field of leak detection by pressure testing of pump covers. It includes a cover pressure testing tooling clamped between relatively arranged front cover clamping plates and rear cover clamping plates. One end of the cover pressure testing tooling is set as an abutting end face. An accommodating cavity with one end open is arranged in the cover pressure testing tooling. An inner hole for accommodating the pump cover and a stepped platform for positioning the pump cover are arranged at the open end of the accommodating cavity. The pump cover is hermetically installed at the stepped platform in the accommodating cavity through a sealing ring. The front cover clamping plate and the rear cover clamping plate are respectively pressed against the abutting end face and the pump cover. For the pressure testing device for the water pump pump cover of the utility model, the cover pressure testing tooling embedded with the pump cover is clamped between the front cover clamping plate and the rear cover clamping plate to achieve position fixation, and then high-pressure gas is injected into the pressure testing cavity through the air injection hole. By observing the pressure change and visually inspecting the leak point, the pressure testing and leak detection of the end cover are realized.

[0004] Although the above patent can realize the pressure testing of the water pump pump cover, the current technology has incomplete considerations and has the following drawbacks: After the pressure testing is completed, it is necessary to use a rubber hammer to knock on the edge of the test tooling and rely solely on inertia to separate the pump cover from the test tooling.

[0005] The disadvantages of the above existing operations:

[0006] When using a rubber hammer to knock on the edge of the test tooling, due to inaccurate control of the knocking position, the sizes of the withdrawn dimensions of the pump cover and the test tooling are different, and finally the pump cover and the test tooling become tighter and tighter. It is necessary to repeatedly knock on different positions to make the withdrawn dimensions consistent and then slowly take out the test tooling. This solution has low efficiency and high labor costs.

[0007] When on-site workers use a rubber hammer to knock on the edge of the test tooling, due to the narrow width of the edge, the knocking is not in place, and even the knocking is off-target and hits the worker's foot, there is a safety risk.

[0008] To solve one of the above problems, there is an urgent need for a rapid separation device for test tooling. Summary of the Utility Model

[0009] Based on the above deficiencies in the prior art, the technical problem to be solved by the present utility model is: how to use a manual lifting drive to quickly lift the pump cover out of the pressure test tooling, greatly improving the work efficiency of test workers and reducing the labor intensity of workers. For this purpose, a rapid separation device for test tooling is provided.

[0010] The rapid separation device for test tooling of the present utility model is characterized in that: it includes a fixed seat buckled at the top opening of the pressure test tooling, hook connectors for detachably connecting with the pressure test tooling are installed on both sides of the fixed seat, a manual lifting drive for driving the pump cover to move relative to the pressure test tooling is installed in the middle of the fixed seat, the output end at the bottom of the manual lifting drive is fixedly connected to a fixing plate to control the lifting of the fixing plate, and the fixing plate is detachably connected to the pump cover through connecting screws.

[0011] This device is used to quickly lift the pump cover. First, the manual lifting drive, movable connector, fixed seat, and fixing plate need to be assembled. Then, the fixed seat is buckled at the top opening of the pressure test tooling. Secondly, the movable connector is connected to the pressure test tooling. Finally, the fixing plate is connected to the pump cover through connecting screws. Then, the pump cover can be quickly lifted out of the pressure test tooling by using the manual lifting drive, greatly improving the work efficiency of test workers and reducing the labor intensity of workers.

[0012] Preferably, the fixed seat includes a fixing plate, two groups of spaced-apart support plates are vertically connected to the lower surface of the fixing plate, and the bottom end faces of the support plates abut against the top opening of the pressure test tooling. The fixing plate and the support plates are integrally formed. The setting of the support plates creates a reserved space between the fixing plate and the pump cover, enabling the pump cover to have a reserved rising distance, and the two groups of spaced-apart support plates facilitate the operator to operate the connecting screws from the reserved area between the support plates.

[0013] Preferably, the manual lifting driving member includes a lifting rod. A through hole for the lifting rod to pass through is formed in the center of the fixing plate. A fixing plate is fixed to the bottom end of the lifting rod. A plurality of connecting screws detachably and singly connected to the pump cover are installed on the fixing plate. The top of the lifting rod is detachably installed with a cam eccentric handle through a horizontal stud. The cam eccentric handle includes a handle body and an eccentric cam connected to the handle body. The eccentric cam abuts against the upper surface of the fixing plate. The top end of the lifting rod is vertically connected to the horizontal stud. An eccentric hole for rotatably connecting with the horizontal stud is formed in the eccentric cam. After the horizontal stud passes through the eccentric hole, it is connected to the corresponding nut. The cooperation of the horizontal stud and the eccentric hole can not only realize the connection between the lifting rod and the cam eccentric handle, but also utilize the eccentricity and lever principle of the cam eccentric handle to lift the lifting rod by controlling the cam eccentric handle.

[0014] Preferably, there are two sets of the hook connecting members, which are arranged around the same vertical center line and the included angle between adjacent two is 180 degrees.

[0015] Preferably, the hook connecting member includes a vertical rod rotatably connected to the fixed seat. A hook body that can be hooked to the bottom of the pressure testing tooling is arranged at the bottom end of the vertical rod. By rotating the vertical rod relative to the fixed seat, the hook body moves relative to the pressure testing tooling to realize the clamping or disengagement between the two. In the clamped state, the fixed seat is restricted from being removed from the pressure testing tooling. In the disengaged state, the fixed seat can be removed from the pressure testing tooling.

[0016] Preferably, the bottom end of the lifting rod is connected to the middle part of the fixing plate through a connecting center screw.

[0017] Preferably, the eccentric cam of the cam eccentric handle is integrally formed with the handle body.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] For the quick separation device of the test tooling of the utility model, this device is used to quickly lift the pump cover. The manual lifting driving member can be utilized to quickly lift the pump cover out of the pressure testing tooling, greatly improving the working efficiency of the test workers and reducing the labor intensity of the workers.

[0020] For the quick separation device of the test tooling of the utility model, by rotating the vertical rod relative to the fixed seat, the hook body moves relative to the pressure testing tooling to realize the clamping or disengagement between the two. In the clamped state, the fixed seat is restricted from being removed from the pressure testing tooling. In the disengaged state, the fixed seat can be removed from the pressure testing tooling. The structure is simple and reasonable, realizing the quick connection between the movable connecting member and the pressure testing tooling.

[0021] The quick separation device of the test tooling of the utility model improves the safety during separation and disassembly. Description of the Drawings

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 is a structural schematic diagram of the present utility model;

[0024] Figure 2 is an external structural schematic diagram of the manual lifting driving member of the present utility model;

[0025] In the figure: 1, cam eccentric handle; 2, fixed seat; 3, movable connecting member; 4, horizontal stud; 5, lifting rod; 6, connecting screw; 7, fixing plate; 8, pump cover; 9, pressure testing tooling. Specific embodiments

[0026] The following further describes the present utility model in conjunction with the drawings: The following further illustrates the present utility model through specific embodiments, but it is not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present utility model.

[0027] Example 1, as Figure 1-2 shown, the rapid separation device for a test tooling includes a fixed seat 2 buckled at the top opening of the pressure testing tooling 9. Hook connecting members for detachably connecting with the pressure testing tooling 9 are installed on both sides of the fixed seat 2. A manual lifting driving member for driving the pump cover 8 to move relative to the pressure testing tooling 9 is installed in the middle of the fixed seat 2. The output end at the bottom of the manual lifting driving member is fixedly connected to the fixing plate 7 to control the lifting of the fixing plate 7. The fixing plate 7 is detachably connected to the pump cover 8 through a connecting screw 6.

[0028] This device is used to quickly lift the pump cover 8. First, the manual lifting driving member, the movable connecting member 3, the fixed seat 2, and the fixing plate 7 need to be assembled. Then, the fixed seat 2 is buckled at the top opening of the pressure testing tooling 9. Next, the movable connecting member 3 is connected to the pressure testing tooling 9. Finally, the fixing plate 7 is connected to the pump cover 8 through a connecting screw 6. Then, the pump cover 8 can be quickly lifted out of the pressure testing tooling 9 by using the manual lifting driving member, greatly improving the working efficiency of the test workers and reducing the labor intensity of the workers.

[0029] Example 2, as Figure 1-2As shown in the figure, the quick separation device for a test tooling includes a fixed seat 2 buckled at the top opening of the pressure test tooling 9. Hook connectors for detachably connecting with the pressure test tooling 9 are installed on both sides of the fixed seat 2. A manual lifting drive member for driving the pump cover 8 to move relative to the pressure test tooling 9 is installed in the middle of the fixed seat 2. The output end at the bottom of the manual lifting drive member is fixedly connected to the fixed plate 7 to control the lifting of the fixed plate 7. The fixed plate 7 is detachably connected to the pump cover 8 through connecting screws 6.

[0030] Further, the fixed seat 2 includes a fixed plate. Two groups of spaced-apart support plates are vertically connected to the lower surface of the fixed plate. The bottom end faces of the support plates abut against the top opening of the pressure test tooling 9. The fixed plate and the support plates are integrally formed. The setting of the support plates creates a reserved space between the fixed plate and the pump cover 8, enabling the pump cover 8 to have a reserved rising distance. And the two groups of spaced-apart support plates facilitate the operator to operate the connecting screws 6 from the reserved area between the support plates.

[0031] Further, the manual lifting drive member includes a lifting rod 5. A through hole for the lifting rod 5 to pass through is opened in the center of the fixed plate. The bottom end of the lifting rod 5 is fixed with the fixed plate 7. Multiple groups of connecting screws 6 for detachably connecting with the pump cover 8 are installed on the fixed plate 7. The top of the lifting rod 5 is detachably installed with a cam eccentric handle 1 through a horizontal stud 4. The cam eccentric handle 1 includes a handle body and an eccentric cam connected to the handle body. The eccentric cam abuts against the upper surface of the fixed plate. The top end of the lifting rod 5 is vertically connected to the horizontal stud 4. An eccentric hole for rotatably connecting with the horizontal stud 4 is opened in the eccentric cam. After the horizontal stud 4 passes through the eccentric hole, it is connected to the corresponding nut. The cooperation between the horizontal stud 4 and the eccentric hole can not only realize the connection between the lifting rod 5 and the cam eccentric handle 1, but also utilize the eccentricity and lever principle of the cam eccentric handle 1 to lift the lifting rod 5 by controlling the cam eccentric handle 1.

[0032] Further, there are two groups of the hook connectors, which are arranged around the same vertical center line and the included angle between adjacent ones is 180 degrees.

[0033] Further, the hook connector includes a vertical rod rotatably connected to the fixed seat 2. The vertical rod can be rotatably installed on the fixed plate through an existing thrust bearing. A hook body that can be hooked on the bottom of the pressure test tooling 9 is arranged at the bottom end of the vertical rod. By rotating the vertical rod relative to the fixed seat 2, the hook body moves relative to the pressure test tooling 9 to achieve their clamping or detachment. In the clamped state, the removal of the fixed seat 2 from the pressure test tooling 9 is restricted. In the detached state, the fixed seat 2 can be removed from the pressure test tooling 9.

[0034] Further, the bottom end of the lifting rod 5 is connected to the middle of the fixed plate 7 through a connecting center screw.

[0035] Furthermore, the eccentric cam of the cam eccentric handle 1 and the handle body are integrally formed.

[0036] Specific operation of the embodiment: After connecting the cam eccentric handle 1 and the lifting rod 5 with the horizontal stud 4, the lifting rod 5 passes through the central hole of the fixed seat 2, and then the lifting rod 5 and the fixing plate 7 are connected with the central screw; then the fixed seat 2 is buckled on the pressing tooling 9; the two side movable support seats 3 are pushed to fix the position of the fixed seat 2 and the pressing tooling 9; the fixing plate 7 and the pump cover 8 are fixedly connected with the connecting screw 6; at this time, the pump cover 8 is inside the pump cover 8, and the cam eccentric handle 1 is approximately in a vertical state. Rotate the cam eccentric handle 1 clockwise, and use its eccentricity and lever principle to quickly lift the pump cover 8 away from the pressing tooling 9, and then disassemble this device.

[0037] The quick separation device of the test tooling described in the utility model is used to quickly lift the pump cover. The pump cover can be quickly lifted out of the pressing tooling by using a manual lifting driving part, which greatly improves the working efficiency of the test workers and reduces the labor intensity of the workers.

[0038] The quick separation device of the test tooling described in the utility model rotates the vertical rod relative to the fixed seat, so that the hook body moves relative to the pressing tooling to realize the clamping or disengagement between the two. In the clamped state, the fixed seat is restricted from being removed from the pressing tooling. In the disengaged state, the fixed seat can be removed from the pressing tooling. The structure is simple and reasonable, and the quick connection between the movable connecting piece and the pressing tooling is realized.

[0039] The quick separation device of the test tooling described in the utility model improves the safety during separation and disassembly.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art of this industry should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the invention. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

[0041] Where the present invention is not described in detail, it is all well-known technology to those skilled in the art of this technology field.

Claims

1. A test fixture quick separation device, characterized in that: It includes a fixing seat that is snapped into the top opening of the pressing tooling, and hook connectors for detachably connecting with the pressing tooling are installed on both sides of the fixing seat. A manual lifting drive component for driving the pump cover to move relative to the pressing tooling is installed in the middle of the fixing seat. The output end at the bottom of the manual lifting drive component is fixedly connected to the fixing plate to control the lifting of the fixing plate. The fixing plate is detachably connected to the pump cover through connecting screws.

2. The test fixture quick separation device according to claim 1, characterized in that: The fixing seat comprises a fixing plate, and two groups of support plates distributed at intervals are vertically connected to the lower surface of the fixing plate, and the bottom end surface of the support plate abuts against the top opening of the pressing tool.

3. The test fixture quick separation device according to claim 2, characterized in that: The manual lifting drive component includes a lifting rod, a through hole for the lifting rod to pass through is opened in the center of the fixing plate, a fixing plate is fixed to the bottom end of the lifting rod, a plurality of connecting screws detachably connected to the pump cover are installed on the fixing plate, a cam eccentric handle is detachably installed on the top of the lifting rod through a horizontal stud, the cam eccentric handle includes a handle body and an eccentric cam connected to the handle body, the eccentric cam abuts against the upper surface of the fixing plate, the top end of the lifting rod is vertically connected to the horizontal stud, an eccentric hole is opened on the eccentric cam which is rotatably connected to the horizontal stud, and the horizontal stud is connected to the corresponding nut after passing through the eccentric hole.

4. The test fixture quick separation device according to claim 3, characterized in that: The hook connectors are provided in two groups, which are arranged around the same vertical center line and the angle between two adjacent ones is 180 degrees.

5. The test fixture quick separation device according to claim 4, characterized in that: The hook connecting member comprises a vertical rod rotatably connected to a fixing seat, and a hook body which can be hooked on the bottom of a pressing tool is arranged at the bottom end of the vertical rod.

6. The test fixture quick separation device according to claim 5, characterized in that: The bottom end of the lifting rod is connected to the middle of the fixing plate by a connecting center screw.

7. The test fixture quick separation device according to claim 6, characterized in that: The eccentric cam of the eccentric cam handle is integrally formed with the handle body.

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