Pipe cutting device for water and electricity installation
By designing a pipe cutting device for water and electricity installation with a self-centering clamping and synchronous adjustment mechanism, the problems of existing devices in being unstable in clamping round pipes and having difficulty adapting to rectangular pipes of different specifications are solved, thus achieving stable and convenient pipe cutting.
Patent Information
- Application Number
- CN202511186136.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-23
- Publication Date
- 2025-10-17
AI Technical Summary
Existing pipe cutting devices for hydropower installations are unstable when clamping round pipes and are prone to tilting. They are also difficult to adapt to the clamping requirements of rectangular pipes of different specifications.
A pipe cutting device is designed, which includes a fixed seat, a cutting assembly, a movable block, a clamping block and a synchronous adjustment mechanism. The clamping adaptation mechanism realizes self-centering adaptive clamping of circular pipes, and the shape switching mechanism adapts to the clamping of rectangular pipes of different specifications. The synchronous adjustment mechanism and the shape switching mechanism are used to ensure the stability and adaptability of the clamping.
It realizes self-centering large-scale circumferential clamping of round pipes, avoids tilting, and can easily adapt to the cutting needs of pipes of different specifications, improving the stability of clamping and the convenience of cutting.
Smart Images
Figure CN120791025A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of water and electricity installation, in particular to a pipe cutting device for water and electricity installation. BACKGROUND
[0002] Pipe material is a material used for pipe fittings. In the process of water and electricity pipeline installation, a cutting device is needed to cut the pipe material. The pipe material for water and electricity installation is mostly circular or rectangular pipe material of different specifications. Although the existing cutting device can be adapted and clamped according to the different specifications of the pipe material, the influence of the arc surface of the circular pipe material makes the existing cutting device usually only be able to make linear contact clamping on both sides during clamping. This not only makes the clamped state of the pipe material unstable, but also makes the pipe material prone to tilting at both ends. Therefore, there is an urgent need for a pipe cutting device for water and electricity installation. SUMMARY
[0003] The present application aims to overcome the defects and shortcomings of the prior art, and provide a pipe cutting device for water and electricity installation which is reasonable in design and convenient to use, To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: it comprises a fixed seat and a cutting assembly, and the upper part of the fixed seat is provided with the cutting assembly; It also comprises: a movable block, the movable block is four, respectively movably arranged on the front and back of the left and right sides of the upper part of the fixed seat, and a first clamping block is fixedly arranged on the upper part of the movable block; a second clamping block, the second clamping block is four, respectively arranged above the four first clamping blocks, a third clamping block is arranged above the second clamping block, and the second clamping block is connected with the first clamping block and the third clamping block through a clamping adaptation mechanism; a synchronous adjustment mechanism, the synchronous adjustment mechanism is arranged in the fixed seat, and the synchronous adjustment mechanism is connected with the movable block, and a shape switching mechanism connected with the clamping adaptation mechanism is arranged below the inside of the fixed seat; Through the above technical scheme, the synchronous adjustment mechanism can drive the clamping adaptation mechanism to move through the movable block, so as to realize the self-centering adaptation clamping of the first clamping block, the second clamping block and the third clamping block on the circular pipe material. Through the adjustment of the shape switching mechanism on the clamping adaptation mechanism, the first clamping block, the second clamping block and the third clamping block can still adapt and clamp the rectangular pipe material of different specifications.
[0004] Preferably, the clamping adaptation mechanism comprises: a first bidirectional lead screw, the first bidirectional lead screw is rotatably connected through a bearing and arranged on the second clamping block, and the two ends of the first bidirectional lead screw are respectively rotatably connected through threads and inserted into the first clamping block and the third clamping block; The guide rods are four, which are respectively fixed on the left and right sides of the upper and lower side walls of the second clamping block, and one end of the upper and lower guide rods is respectively movably inserted into the third clamping block and the first clamping block; The control rod is rotatably connected to the first clamping block through a bearing, the upper end of the control rod is movably inserted into the first bidirectional screw, and the lower end of the control rod is movably inserted into the movable block and fixedly provided with a gear. The rack is arranged in the moving groove arranged below the movable groove, the gear is arranged in mesh with the rack, and the rack is connected with the shape switching mechanism. Through the above technical scheme, during the movement of the movable block through the synchronous adjusting mechanism, the synchronous relative movement of the first clamping block, the second clamping block and the third clamping block corresponding to the front and back can be realized, and the gear can drive the control rod to rotate through the rack, the control rod drives the first bidirectional screw to rotate, and the interval between the first clamping block and the second clamping block and the interval between the third clamping block and the second clamping block can be maintained, so that the height of the position of the second clamping block and the third clamping block can be adjusted, thereby ensuring the self-centering type large-range circumferential clamping of the circular pipe of different specifications.
[0005] Preferably, the synchronous adjusting mechanism comprises: The second bidirectional screw is rotatably arranged in the fixed seat through a bearing, two nuts are rotatably arranged on the second bidirectional screw, the left and right side walls of the nuts are fixedly provided with connecting plates, and one side wall of the connecting plate is fixedly connected with the movable block. The handle is arranged on the front side of the fixed seat, and the handle is fixedly connected with the front end of the second bidirectional screw. Through the above technical scheme, the two nuts can be synchronously and oppositely moved during the rotation of the second bidirectional screw, and the synchronous adjustment of the positions of the front and rear movable blocks can be realized through the cooperation of the connecting plates.
[0006] Preferably, the shape switching mechanism comprises: The cross rods are four, which are respectively fixed on the front and rear sides of the side walls of the two racks, and one end of the cross rod is hingedly provided with a connecting rod. The rectangular rod is movably arranged in the fixed seat, and the side wall of the rectangular rod is hingedly connected with one end of the connecting rod. The push-pull rod is fixedly arranged on the front end of the rectangular rod, and the push-pull rod is movably arranged in the through groove arranged on the front side of the fixed seat, the cylindrical grooves arranged on the left and right sides of the ring side wall of the push-pull rod are fixedly provided with a first spring, one end of the first spring is fixedly provided with a limiting block, and the inner walls of the through groove are provided with two limiting grooves matched with the limiting block. Through the above technical scheme, the rectangular rod can be moved forward and backward through the pushing and pulling of the push-pull rod, and the connecting plate can drive the rack to move left and right through the cooperation of the connecting rod, so that the gear and the rack are adjusted to the meshing state, and then the control of the driving state of the clamping and adapting mechanism can be realized during the movement of the movable block.
[0007] Preferably, a first organ protective cover is connected between the two movable blocks in the movable slot, and a second organ protective cover is fixedly arranged on the front and rear sides of the movable slot, and one end of the second organ protective cover is connected with the movable block. The first and second organ protective covers can provide shielding protection for the movable slot, so that the debris generated during the cutting of the pipe material does not fall into the movable slot and affect the normal movement of the movable block.
[0008] Preferably, a second spring is fixedly arranged in each of the two insertion grooves formed in the side wall of the second clamping block, one end of the second spring is fixedly provided with an insertion rod, and the insertion rod is movably inserted into the insertion groove, and the outer ends of the two insertion rods are connected with a contact plate. The rebounding thrust applied to the insertion rod by the second spring can improve the clamping force of the contact plate on the middle position of the side wall of the pipe material, and improve the stability of the pipe material in the clamped state.
[0009] Preferably, a shock-absorbing rubber pad is fixedly arranged on the side wall of the contact plate. The shock-absorbing rubber pad can not only increase the friction between the contact plate and the surface of the pipe material when the pipe material is clamped, but also provide shock absorption and buffering during the cutting of the pipe material.
[0010] Preferably, a transparent protective cover is fixedly arranged on the front side edge of the upper part of the fixed seat, and an operation groove matched with the cutting assembly is formed in the transparent protective cover. The transparent protective cover can not only provide a certain degree of protection for the workers, but also prevent the debris generated during the cutting of the pipe material from scattering randomly.
[0011] Compared with the prior art, the present application has the following advantages: 1. Through the cooperation of the clamping and adapting mechanism, the second clamping block and the third clamping block can be adjusted in height synchronously according to the center of the circular pipe material to be clamped during the synchronous movement of the front and rear movable blocks, so that the first, second and third clamping blocks can clamp the pipe material in a wide range of circumferential manner. 2. Through the cooperation of the synchronous adjusting mechanism, the four movable blocks can move synchronously, which can not only avoid the tilting of the pipe material during clamping, but also make the cutting device more convenient to adapt and adjust according to the size of the pipe material. 3. Through the cooperation of the shape switching mechanism, the driving state of the clamping and adapting mechanism can be controlled during the movement of the movable block, so that the position height of the second clamping block and the third clamping block can remain unchanged when the rectangular pipe material is clamped and fixed. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a structural schematic view of the present application.
[0013] Figure 2 is an enlarged view of A part in Figure 1
[0014] Figure 3 is a three-dimensional structural view of the left rear side of the present application.
[0015] Figure 4 is a sectional view of the fixed seat and the push-pull rod in the present application.
[0016] Figure 5 is an enlarged view of B part in Figure 4
[0017] Figure 6 is an enlarged view of C part in Figure 4
[0018] Figure 7 is a connection schematic view of the form switching mechanism and the fixed seat inside in the present application.
[0019] Figure 8 is a parts explosion view of the movable block, the first clamping block, the second clamping block, the third clamping block, the first bidirectional screw rod, the guide rod, the control rod, the gear, the second spring, the insertion rod, the abutting plate and the shock-absorbing rubber pad in the present application.
[0020] BRIEF DESCRIPTION OF DRAWINGS fixed seat 1, cutting assembly 2, movable block 3, first clamping block 4, second clamping block 5, third clamping block 6, clamping adaptation mechanism 7, first bidirectional screw rod 7-1, guide rod 7-2, control rod 7-3, gear 7-4, rack 7-5, synchronous adjustment mechanism 8, second bidirectional screw rod 8-1, nut 8-2, connecting plate 8-3, crank 8-4, form switching mechanism 9, cross rod 9-1, connecting rod 9-2, rectangular rod 9-3, push-pull rod 9-4, first spring 9-5, limiting block 9-6, limiting groove 10, first piano protective cover 11, second piano protective cover 12, second spring 13, insertion rod 14, abutting plate 15, shock-absorbing rubber pad 16, transparent protective cover 17. DETAILED DESCRIPTION
[0021] The present application will be further described below in conjunction with the drawings.
[0022] Example 1: As Figures 1-8 As shown, the embodiment comprises a fixed seat 1 and a cutting assembly 2, the upper part of the fixed seat 1 is provided with the cutting assembly 2, the front side edge of the upper part of the fixed seat 1 is fixedly provided with a transparent protective cover 17, and the transparent protective cover 17 is provided with an operation groove matched with the cutting assembly 2, the transparent protective cover 17 can not only provide a certain degree of protection for the workers, but also avoid the random scattering of the debris generated during the pipe cutting process, thereby avoiding the adverse effects on the working environment; It also comprises: The movable block 3 is four, which is movably arranged on the front and rear sides of the active slot on the left and right sides of the upper part of the fixed seat 1, and the two movable blocks 3 in the active slot are connected by a first organ protective cover 11, and the front and rear sides of the active slot are fixedly provided with a second organ protective cover 12, and one end of the second organ protective cover 12 is connected with the movable block 3, and the first organ protective cover 11 and the second organ protective cover 12 can provide shielding protection for the active slot, so as to avoid the debris generated during the pipe cutting process from falling into the active slot, thereby avoiding the interference of the normal movement of the movable block 3, and the upper part of the movable block 3 is fixedly provided with a first clamping block 4; The second clamping block 5 is four, which is arranged above the four first clamping blocks 4, and the third clamping block 6 is arranged above the second clamping block 5, and the second clamping block 5 is connected with the first clamping block 4 and the third clamping block 6 through the clamping adaptation mechanism 7; The synchronous adjustment mechanism 8 is arranged in the fixed seat 1, and the synchronous adjustment mechanism 8 is connected with the movable block 3; The clamping adaptation mechanism 7 comprises: The first bidirectional screw rod 7-1 is rotatably connected to the second clamping block 5 through a bearing, and the two ends of the first bidirectional screw rod 7-1 are rotatably inserted into the first clamping block 4 and the third clamping block 6 through threads; The guide rod 7-2 is four, which is fixedly arranged on the left and right sides of the upper and lower side walls of the second clamping block 5, and the upper and lower guide rods 7-2 are movably inserted into the third clamping block 6 and the first clamping block 4 at one end respectively; The control rod 7-3 is rotatably connected to the first clamping block 4 through a bearing, the upper end of the control rod 7-3 is movably inserted into the first bidirectional screw rod 7-1, and the lower end of the control rod 7-3 is movably inserted into the movable block 3 and fixedly provided with a gear 7-4; A rack 7-5 is arranged in a moving groove formed below the movable groove, and a gear 7-4 is arranged in mesh with the rack 7-5. During the movement of the movable block 3 through the synchronous adjusting mechanism 8, not only the synchronous relative movement of the first clamping block 4, the second clamping block 5 and the third clamping block 6 corresponding to the front and back can be realized, but also the gear 7-4 can drive the control rod 7-3 to rotate through the rack 7-5, and the control rod 7-3 drives the first bidirectional screw 7-1 to rotate, so that the interval between the first clamping block 4 and the second clamping block 5 and the interval between the third clamping block 6 and the second clamping block 5 can be maintained, and the height of the positions of the second clamping block 5 and the third clamping block 6 can be adjusted, so as to ensure the self-centering type large-range circumferential clamping of the circular pipe with different specifications. A mode switching mechanism 9 connected with the clamping adapting mechanism 7 is arranged inside and below the fixed seat 1, and the rack 7-5 is connected with the mode switching mechanism 9. The synchronous adjusting mechanism 8 comprises: A second bidirectional screw 8-1 is arranged in the fixed seat 1 through bearing rotation, two nuts 8-2 are arranged on the second bidirectional screw 8-1 through threaded rotation, and a connecting plate 8-3 is fixedly arranged on the left and right side walls of the nut 8-2. One side wall of the connecting plate 8-3 is fixedly connected with the movable block 3. A crank 8-4 is arranged on the front side of the fixed seat 1, and the crank 8-4 is fixedly connected with the front end of the second bidirectional screw 8-1. During the rotation of the second bidirectional screw 8-1, the two nuts 8-2 can be synchronously and reversely moved, and the synchronous adjustment of the positions of the two movable blocks 3 on the front and back sides can be realized through the cooperation of the connecting plate 8-3, so that the clamping and fixing operation of the cutting device on the pipe is more convenient.
[0023] Embodiment 2: Referring to Figure 1 , Figure 5 and Figure 7 , the mode switching mechanism 9 is further limited based on the embodiment 1, and the mode switching mechanism 9 comprises: Four cross rods 9-1 are fixedly arranged on the front and back sides of the side walls of the two racks 7-5, and one end of the cross rod 9-1 is hingedly connected with a connecting rod 9-2; A rectangular rod 9-3 is movably arranged in contact with the fixed seat 1, and the side wall of the rectangular rod 9-3 is hingedly connected with one end of the connecting rod 9-2; A push-pull rod 9-4 is fixedly arranged at the front end of the rectangular rod 9-3 and movably arranged in the through slot formed in the front side of the fixed base 1. The push-pull rod 9-4 is fixedly arranged in the cylindrical slots formed in the left and right sides of the ring side wall. A first spring 9-5 is fixedly arranged at one end of the push-pull rod 9-4. A limiting block 9-6 is fixedly arranged at one end of the first spring 9-5. Two limiting grooves 10 are formed in the left and right sides of the inner wall of the through slot and matched with the limiting block 9-6. The push-pull rod 9-4 can be pushed and pulled to move the rectangular rod 9-3 back and forth. The cooperation of the connecting rod 9-2 can drive the connecting plate 8-3 to move left and right, so as to adjust the meshing state of the gear 7-4 and the rack 7-5. In the process of moving the movable block 3, the driving state of the clamping and adapting mechanism 7 can be controlled.
[0024] Embodiment 3 Referring to Figure 2 , Figure 4 and Figure 8 , on the basis of the improvement of embodiment 1, two second springs 13 are fixedly arranged in the two insertion grooves formed in the side wall of the second clamping block 5. One end of the second spring 13 is fixedly arranged with an insertion rod 14, and the insertion rod 14 is movably arranged in the insertion groove. The outer ends of the two insertion rods 14 are connected with a resisting plate 15. The rebounding thrust applied to the insertion rod 14 by the second spring 13 can improve the clamping force of the resisting plate 15 on the middle position of the side wall of the pipe, and further improve the stability of the pipe in the clamped state. The side wall of the resisting plate 15 is fixedly arranged with a shock-absorbing rubber pad 16. The shock-absorbing rubber pad 16 can not only improve the friction force generated between the resisting plate 15 and the surface of the pipe when clamping the pipe, but also can provide shock-absorbing and buffering during the cutting of the pipe, reduce the vibration of the pipe, and improve the cutting effect of the pipe.
[0025] In use of the present application, the circular pipe is placed above the fixed seat 1, then the handle 8-4 is rotated, the handle 8-4 drives the second bidirectional screw rod 8-1 to rotate, so that the two side nuts 8-2 are synchronously close to each other, and the front and rear movable blocks 3 are synchronously moved to each other through the connecting plate 8-3, at this time, the movable blocks 3 can be moved to the circular pipe through the clamping adaptation mechanism 7, so that the front and rear first clamping blocks 4, the second clamping blocks 5 and the third clamping blocks 6 are synchronously moved to the circular pipe, in this process, the gear 7-4 will drive the control rod 7-3 to rotate through the meshing with the rack 7-5, the control rod 7-3 drives the first bidirectional screw rod 7-1 to rotate, and under the guiding action of the guide rod 7-2, the second clamping blocks 5 and the third clamping blocks 6 are moved downward, and the distance between the first clamping blocks 4 and the second clamping blocks 5 and the distance between the second clamping blocks 5 and the third clamping blocks 6 can be always kept the same, so that the first clamping blocks 4, the second clamping blocks 5 and the third clamping blocks 6 can be synchronously moved to the center of the circular pipe, the inclined side walls of the first clamping blocks 4 and the third clamping blocks 6 are in contact with the circular pipe, so that the self-centering type large-range circumferential clamping of the circular pipe is realized, at the same time, the damping rubber pads 16 on the abutting plate 15 can replace the second clamping blocks 5 to abut against the side wall of the circular pipe, and through the rebounding thrust force applied by the second spring 13, the stability of the pipe in the clamped and fixed state is further improved, then the pipe can be cut through the cutting assembly 2; When the rectangular pipe needs to be cut, it can be placed on the fixed seat 1, then in the initial position state of the movable blocks 3, the push-pull rod 9-4 is pushed to the rear side, so that the limiting block 9-6 is clamped into the limiting groove 10 on the rear side, the push-pull rod 9-4 drives the rectangular rod 9-3 to move to the rear side, the rectangular rod 9-3 drives one end of the connecting rod 9-2 to move to the rear side, so that the other end of the connecting rod 9-2 drives the cross rod 9-1 to move to the rectangular rod 9-3, the cross rod 9-1 drives the rack 7-5 to move to be out of engagement with the gear 7-4, then the handle 8-4 is rotated, the handle 8-4 drives the second bidirectional screw rod 8-1 to rotate, so that the two side nuts 8-2 are synchronously close to each other, and the front and rear movable blocks 3 are synchronously moved to each other through the connecting plate 8-3, at this time, the movable blocks 3 can be moved to the rectangular pipe through the clamping adaptation mechanism 7, so that the front and rear first clamping blocks 4, the second clamping blocks 5 and the third clamping blocks 6 are synchronously moved to the rectangular pipe, and under the influence of the state that the gear 7-4 is out of engagement with the rack 7-5, the first clamping blocks 4, the second clamping blocks 5 and the third clamping blocks 6 can be clamped and fixed to the rectangular pipe in the state that the height is kept unchanged.
[0026] Compared with the prior art, the present embodiment has the following advantages: 1. By cooperating with the clamping adaptation mechanism 7, the second clamping block 5 and the third clamping block 6 can be adjusted in height synchronously according to the center of the circular pipe to be clamped during the synchronous movement of the front and rear corresponding movable blocks 3, and the pipe can be clamped in a large range of circumference by the first clamping block 4, the second clamping block 5 and the third clamping block 6. 2. By cooperating with the synchronous adjustment mechanism 8, the four movable blocks 3 can move synchronously, which can not only avoid the inclination of the pipe during clamping, but also make the cutting device more convenient to adjust according to the size of the pipe. 3. By cooperating with the shape switching mechanism 9, the driving state of the clamping adaptation mechanism 7 can be controlled during the movement of the movable blocks 3, so that the position and height of the second clamping block 5 and the third clamping block 6 can remain unchanged when clamping and fixing the rectangular pipe.
[0027] The above description is only used to illustrate the technical solutions of the present application, not to limit it. Other modifications or equivalent replacements to the technical solutions of the present application made by those skilled in the art should be covered in the scope of the claims of the present application as long as they do not deviate from the spirit and scope of the present application.
Claims
1. A pipe cutting device for water and electricity installation, comprising a fixing base (1) and a cutting assembly (2), wherein the cutting assembly (2) is provided on the upper portion of the fixing base (1); It is characterized by: It also contains: Movable blocks (3), there are four movable blocks (3), which are movably arranged on the front and rear sides of the movable grooves opened on the left and right sides of the upper part of the fixed seat (1), and a No. 1 clamping block (4) is fixedly arranged on the upper part of the movable blocks (3); No. 2 clamping blocks (5), there are four No. 2 clamping blocks (5), which are respectively arranged above the four No. 1 clamping blocks (4), and a No. 3 clamping block (6) is arranged above the No. 2 clamping blocks (5), and the No. 2 clamping blocks (5) are connected to the No. 1 clamping blocks (4) and the No. 3 clamping blocks (6) through a clamping adapter mechanism (7); A synchronous adjustment mechanism (8) is provided in the fixed seat (1), and the synchronous adjustment mechanism (8) is connected to the movable block (3). A form switching mechanism (9) connected to the clamping adapter mechanism (7) is provided below the fixed seat (1).
2. A pipe cutting device for water and electricity installation according to claim 1, characterized in that: The clamping adapter mechanism (7) comprises: A No. 1 bidirectional screw (7-1), the No. 1 bidirectional screw (7-1) being screwed through the No. 2 clamping block (5) via a bearing, and both ends of the No. 1 bidirectional screw (7-1) being screwed and inserted into the No. 1 clamping block (4) and the No. 3 clamping block (6) respectively via threads; Guide rods (7-2), there are four guide rods (7-2), which are respectively fixedly arranged on the left and right sides of the upper and lower side walls of the second clamping block (5), and one end of the upper and lower guide rods (7-2) is movably inserted into the third clamping block (6) and the first clamping block (4); A control rod (7-3), the control rod (7-3) is screwed through a bearing and is installed on the No. 1 clamping block (4), the upper end of the control rod (7-3) is movably inserted into the No. 1 bidirectional screw (7-1), and the lower end of the control rod (7-3) is movably inserted through the movable block (3) and is fixedly provided with a gear (7-4); A rack (7-5) is provided in a movable groove opened below the movable groove, the gear (7-4) and the rack (7-5) are meshed with each other, and the rack (7-5) is connected to the form switching mechanism (9).
3. The pipe cutting device for water and electricity installation according to claim 1, characterized in that: The synchronous adjustment mechanism (8) comprises: A second bidirectional lead screw (8-1) is provided in a fixed seat (1) via a bearing rotation connection, two nuts (8-2) are provided on the second bidirectional lead screw (8-1) via a threaded rotation connection, connecting plates (8-3) are fixedly provided on both left and right side walls of the nuts (8-2), and one side wall of the connecting plate (8-3) is fixedly connected to the movable block (3); A crank handle (8-4) is provided on the front side of the fixing seat (1), and the crank handle (8-4) is fixedly connected to the front end of the second bidirectional lead screw (8-1).
4. The pipe cutting device for water and electricity installation according to claim 2, characterized in that: The form switching mechanism (9) comprises: Cross bars (9-1), there are four cross bars (9-1), which are respectively fixedly arranged on the front and rear sides of the side walls of the two racks (7-5), and one end of the cross bar (9-1) is hingedly provided with a connecting rod (9-2); A rectangular rod (9-3), the rectangular rod (9-3) being movably disposed in abutment with the fixed seat (1), and a side wall of the rectangular rod (9-3) being hinged to one end of the connecting rod (9-2); A push-pull rod (9-4) is fixedly arranged at the front end of the rectangular rod (9-3), and the push-pull rod (9-4) is movably inserted into a through slot opened at the front side of the fixed seat (1). A No. 1 spring (9-5) is fixedly arranged in the cylindrical slots opened on the left and right sides of the ring side wall of the push-pull rod (9-4), a limit block (9-6) is fixedly arranged at one end of the No. 1 spring (9-5), and two limit slots (10) that cooperate with the limit block (9-6) are opened on the left and right sides of the inner wall of the through slot.
5. The pipe cutting device for water and electricity installation according to claim 1, characterized in that: A No. 1 accordion protective cover (11) is connected between the two movable blocks (3) in the movable groove, and a No. 2 accordion protective cover (12) is fixedly provided on both the front and rear sides of the movable groove, and one end of the No. 2 accordion protective cover (12) is connected to the movable block (3).
6. The pipe cutting device for water and electricity installation according to claim 1, characterized in that: A No. 2 spring (13) is fixedly provided in the two slots provided on the side wall of the No. 2 clamping block (5), an insertion rod (14) is fixedly provided at one end of the No. 2 spring (13), and the insertion rod (14) is movably inserted in the slot, and the outer ends of the two insertion rods (14) are connected to a contact plate (15).
7. The pipe cutting device for water and electricity installation according to claim 6, characterized in that: A shock-absorbing rubber pad (16) is fixedly provided on the side wall of the contact plate (15).
8. The pipe cutting device for water and electricity installation according to claim 1, characterized in that: A transparent protective cover (17) is fixedly provided on the front edge of the upper portion of the fixing seat (1), and an operating slot that matches the cutting assembly (2) is provided on the transparent protective cover (17).