Fixing device for enema

Abstract

The invention relates to a fixing device for enema, and belongs to the technical field of enema equipment, the fixing device comprises a foot stool for mounting an enema bag in an inverted hanging manner, the top end of the foot stool is provided with a top plate, a pair of upper clamping blocks arranged at intervals are mounted below the top plate, and the upper clamping blocks can clamp the side edge of the bottom of the enema bag; a lower support capable of vertically moving is further fixed below one side of the top plate, a lower clamping block is arranged on the lower support, the lower clamping block can clamp the side edge of the top end of the enema bag, and when the lower support vertically moves downwards, the lower support can be matched with the upper clamping block to vertically tighten the enema bag; the enema device further comprises a pair of rollers which are arranged in parallel at intervals, the two rollers are arranged on the front side and the rear side of the enema bag respectively, and the two ends of the two rollers are connected through an elastic telescopic rod so that the two rollers can synchronously and vertically move and always keep in extrusion contact with the enema bag in the moving process. The enema bag can be well fixed, the flowing speed is prevented from being affected by shaking, and meanwhile the flowing speed can be actively controlled.

Description

Technical Field

[0001] The invention relates to the technical field of enema equipment, and in particular to a fixing device for enema. Background Art

[0002] Enema, also known as rectal administration or colon irrigation, is a common medical procedure used primarily for intestinal cleansing, pre-diagnostic preparation, treatment of certain conditions (such as constipation and intestinal diseases), or as a drug delivery route. The enema process involves inserting liquid through the anus into the rectum and part of the colon to achieve various purposes. For example, by instilling large amounts of clean water or specific solutions, intestinal emptying is promoted, clearing accumulated stool and residual material. It is often used in preparation for surgery, prenatal care, and colonoscopy. Some drugs can be absorbed through the rectum. Especially when oral administration is difficult or gastrointestinal function is limited, enema administration can bypass the gastrointestinal tract and act directly on the lower digestive tract, making it suitable for the treatment of diarrhea, inflammatory bowel disease, and other conditions. Through the action of water or lubricants, stool is softened, the defecation reflex is promoted, and constipation symptoms are relieved. Therefore, enema is used in the treatment and care of a variety of clinical diseases. The control of enema fluid delivery varies according to different application scenarios.

[0003] The equipment used in common enema methods is mainly as follows Figure 1 As shown, a top plate is fixed to a support leg, one end of which has a hook. The hook is used to hang the enema bag from a central loop at the bottom. This is similar to the inverted hanging installation of an infusion bottle. Existing enema equipment mainly relies on the enema bag being placed at a certain height above the patient, allowing the liquid to be automatically transported downward by gravity. Generally speaking, the installation height of the enema bag refers to the height of the enema bag from the patient's buttocks. The enema bag should be hung on a rack 40-60 cm above the buttocks to facilitate the flow of the liquid into the rectum and achieve a better enema effect. Therefore, the bracket that typically holds the enema bag and its attached enema tube needs to be hung below the top plate, causing the enema bag to sway, thereby affecting the delivery of the enema liquid, affecting the speed and effectiveness of the enema. Moreover, to meet the different installation height requirements of different patients, the length of the hanging rope or hook between the enema bag and the top plate may be increased, making the enema bag even more unstable and causing noticeable oscillations with the slightest touch.

[0004] Furthermore, in some special cases, if the flow rate of the enema bag needs to be changed, it may be necessary to manually lift the bag and reposition it, which is very troublesome and may even interrupt the enema procedure. As for the enema itself, once the height of the enema bag is fixed, the amount of enema liquid decreases as the enema progresses. Consequently, the liquid pressure inside the enema bag at the connection between the enema bag and the enema tube decreases, and the flow rate naturally decreases. Therefore, strictly speaking, the entire enema process is not an infusion process with a relatively stable flow rate within a certain range. Therefore, the enema operation, especially medication administration, lacks the stability of liquid delivery. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide a fixing device for enema, so as to solve the problems raised in the above-mentioned background technology and perform enema operation conveniently and controllably.

[0006] The present invention is achieved through the following technical solutions:

[0007] A fixing device for enema, comprising a tripod for hanging an enema bag upside down, the tripod having a top plate at the top, a pair of upper clamping blocks arranged at intervals being installed below the top plate, the upper clamping blocks being capable of clamping the bottom side edges of the enema bag; a lower bracket capable of vertical movement is also fixed below one side of the top plate, the lower bracket having a lower clamping block being capable of clamping the side edges of the top end of the enema bag, and the enema bag being vertically tightened in cooperation with the upper clamping blocks when the lower bracket moves vertically downward; and a pair of rollers arranged in parallel and at intervals, the two rollers being respectively arranged on the front and rear sides of the enema bag, the two ends of the two rollers being connected by an elastic telescopic rod so that the two rollers can move vertically synchronously and always maintain extrusion contact with the enema bag during the movement.

[0008] Furthermore, the lower bracket also includes a cantilever rod, a sliding plate and a slider, wherein the sliding plate is fixed to one end of the cantilever rod, the slider is fixed to one end of the sliding plate, and the lower clamping block is fixed to the other end of the cantilever rod, and the lower clamping block includes a rectangular frame for inserting the top end of the enema bag, and a clamping bolt is provided on each side of the rectangular frame near the edge, and the clamping bolt is rotatably connected to a clamping block, and the clamping block is located in the rectangular frame and is fixedly connected to the two side edges of the top end of the enema bag by squeezing.

[0009] Furthermore, the slider is installed in a vertical sliding fit in a vertical rod, and the sliding disk is in vertical sliding fit contact with the side of the vertical rod. Under the contact action of the sliding disk and the vertical rod, the slider maintains a posture perpendicular to the vertical rod; the slider is a rectangular block structure, and a screw rod is vertically installed in the vertical rod, and the slider is threadedly installed on the screw rod. After the top end of the screw rod passes through the top plate, an operating plate for rotating the screw rod is fixed, and a compression spring that is always in a compressed state is provided between the operating plate and the top plate.

[0010] Furthermore, the upper clamping block includes a clamping portion and a sliding column fixed to the clamping portion, the clamping portion is used to clamp the side edge of the bottom end of the enema bag, the sliding column is axially slidably installed in a base, the base is fixed in the top plate, and an adjusting screw is threadedly installed on the top end of the base. The bottom end of the adjusting screw is rotatably connected to the top end of the sliding column, and an operating plate is fixed to its top end. A pressure-resistant spring that is always in a compressed state is provided between the operating plate and the top of the base.

[0011] Furthermore, the rollers are rotatably mounted in the bearing seats at their ends, and the elastic telescopic rods include a plug-in rod and a socket rod respectively fixed to the outer walls of the two bearing seats. The plug-in rod is axially inserted into the socket rod and connected to the tension spring in the socket rod. When the two rollers are respectively located on the front and rear sides of the enema bag, the tension spring is always in a stretched state.

[0012] Furthermore, a threaded block is fixed to the end of the core shaft of the first of the two rollers, and the threaded block is installed in a vertical sliding fit in a rectangular column, and is threadedly sleeved with a vertically installed and rotatable screw in the rectangular column, and the screw is connected to a stepper motor on the top plate; the end of the core shaft of the second roller extends into a sliding cavity in the rectangular column, and can move in the sliding cavity along the vertical direction and front and rear directions of the rectangular column. A contact plate is also fixed on the core shaft of the second roller, and the contact plate always fits smoothly with the side of the rectangular column and covers the end face of the cavity mouth of the sliding cavity.

[0013] Furthermore, a moving block is fixed to the end of the core shaft of the second roller, and the moving block is in sliding contact with the bottom of the sliding cavity. The rear side of the moving block is in contact with an elastic rod through a first strip, and the elastic rod is fixed on the side wall of the sliding cavity, and the first strip is arranged in the sliding cavity parallel to the screw, and a second strip is provided on the front side of the moving block to contact it. The second strip is squeezed and contacted with the side wall of the sliding cavity through a compression spring, so that the two strips are parallel to each other and always maintain contact with the moving block.

[0014] Furthermore, in a non-working state, the two rollers are in tangential contact with each other.

[0015] Furthermore, the two ends of the sticker are respectively installed in two opposite side walls of the sliding cavity in a sliding manner, so that the two always maintain a parallel posture to each other and do not leave the sliding cavity.

[0016] Furthermore, the moving block is a rectangular block structure, the cross-section of the strip is rectangular, and an adjusting bolt is threadedly provided on the rear side of the rectangular column. The adjusting bolt is screwed into the sliding cavity and rotatably connected to the end of the elastic rod.

[0017] The beneficial effects of the present invention are:

[0018] In brief, the main function of the enema fixing device is to tighten the enema bag in the vertical direction by clamping the sides of the two ends of the enema bag, and then cooperate with a pair of rollers clamping the enema bag to gradually and slowly roll from top to bottom as the liquid in the bag decreases. On the one hand, it can avoid violent shaking of the enema and avoid seriously affecting the flow rate of the enema liquid. On the other hand, when the enema liquid in the enema bag is gradually lost, resulting in lower and lower hydraulic pressure and slower and slower liquid flow into the enema tube, the pressure in the enema bag can be artificially increased by the digital downward rolling of the pair of rollers, so that the enema liquid can flow out stably within a set flow rate range, thereby improving the smooth consistency of the enema rhythm. When necessary, the flow rate can even be actively increased, that is, the downward movement distance and speed of the rollers are accelerated to form a greater squeezing force, without the need to manually lift the enema bag and re-fix it to a new height position, making the operation more convenient.

[0019] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of an existing enema bag fixing structure;

[0021] Figure 2 A front view of the present invention;

[0022] Figure 3 A schematic diagram of a partial structure of the lower clamping block of the present invention;

[0023] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at A in FIG;

[0024] Figure 5 This is a schematic top view of the relative installation structure of the two rollers;

[0025] Figure 6 for Figure 5 Left view of the coordination structure of the two stickers and the moving block.

[0026] In the figure: tripod 1, top plate 2, enema bag 3, enema tube 4, upper clamping block 5, lower clamping block 6, rectangular frame 601, tightening bolt 602, pressure block 603, cantilever rod 7, first roller 8, slider 9, screw rod 10, vertical rod 11, operating panel 12, sliding column 13, base 14, adjusting screw 15, pressure spring 16, operating panel 17, core shaft 18, threaded block 19, screw 20, bearing seat 21, contact plate 22, moving block 23, elastic rod 24, second strip 25, pressure spring 26, sliding cavity 27, socket rod 28, tension spring 29, plug rod 30, rectangular column 31, first strip 32, sliding plate 33, second roller 34, stepping motor 35. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] See also Figure 2 The present invention provides a technical solution: an enema fixing device, which mainly includes a stand 1 for hanging an enema bag 3 upside down, and a top plate 2 at the top of the stand 1 as a support carrier. In this embodiment, a pair of upper clamping blocks 5 are specially installed below the top plate 2. The upper clamping blocks 5 can clamp the bottom side edges of the enema bag 3, that is, Figure 2The upper side edge of the inverted hanging position is said to be the bottom side edge of the enema bag 3 is clamped because the enema bag 3 is hung upside down, thereby clamping the portion outside the two sides of the central hanging ring of the enema bag 3 to clamp the bottom end of the enema bag 3. In addition, a lower bracket that can move vertically is fixed below one side of the top plate 2, that is, the lower bracket can move up and down. Specifically, there is a lower clamping block 6 on the lower bracket, and the lower clamping block 6 can clamp the side edge of the top of the enema bag 3. When the lower bracket moves vertically downward, it cooperates with the upper clamping block 5 to tighten the enema bag 3 vertically, thereby preventing the enema bag 3 from shaking and affecting the flow of liquid, thereby affecting the enema process. In addition, as Figure 2 and Figure 5 In the illustrated structure, this embodiment further comprises a pair of rollers arranged in parallel and spaced apart. The two rollers are rotatably mounted on respective core shafts 18 and can rotate around the core shafts 18 when rolling the enema bag 3. Specifically, the two rollers are respectively arranged on the front and rear sides of the enema bag 3. The two ends of the two rollers are connected by an elastic telescopic rod so that the two rollers can move vertically synchronously and always maintain extrusion contact with the enema bag 3 during the movement. Figure 2 As shown, when the two rollers clamp the upside-down enema bag 3 and roll from top to bottom, or from the bottom end to the top end of the enema bag 3, due to the presence of the elastic telescopic rod, the two rollers in contact with each other can move away from each other to form a small gap for the enema bag 3 to pass through. The enema bag 3 is then rolled and pressurized to the interior of the enema bag 3, so that the liquid flow rate can be controlled to flow into the enema tube 4 and then into the intestine.

[0031] In this embodiment: Figure 2-3 As shown, the lower bracket used also includes a cantilever rod 7, a sliding plate 33 and a slider 9, wherein one end of the cantilever rod 7 is particularly fixed with a sliding plate 33, one end of the sliding plate 33 is fixed with a slider 9, and the other end is in sliding contact with the surface of the vertical rod 11 mentioned below to better install the cantilever rod 7, so that the other end of the cantilever rod 7 is stably fixed with a lower clamping block 6, and the lower clamping block 6 specifically includes a rectangular frame 601 for the top end of the enema bag 3 to be inserted, and a clamping bolt 602 is provided on each side of the rectangular frame 601 near the edge, and the clamping bolt 602 is rotatably connected to a clamping block 603, and the clamping block 603 is located in the rectangular frame 601, so as to be squeezed and fixedly connected to the two side edges of the top end of the enema bag 3, that is, the two sides of the top end of the enema bag 3 are pressed to achieve clamping and fixation of the top end of the enema bag 3.

[0032] In this embodiment: Figure 2As shown, the slider 9 is installed in a vertical sliding manner in a vertical rod 11, and the sliding plate 33 is in vertical sliding contact with the side of the vertical rod 11. Under the contact between the sliding plate 33 and the vertical rod 11, the slider 9 maintains a posture perpendicular to the vertical rod 11, and the structure is more stable and reliable. Specifically, the slider 9 is a rectangular block structure, and a screw rod 10 is vertically installed in the vertical rod 11. The slider 9 is threadedly installed on the screw rod 10. After the top of the screw rod 10 passes through the top plate 2, it is necessary to fix an operating disk 12 for rotating the screw rod 10. By rotating the operating disk 12, the screw rod 10 rotates, and then the height position of the cantilever rod 7 is adjusted to correspond to the top position of the enema bag 3. In order to prevent the screw rod 10 from rotating when it is adjusted to the right position, a compression spring that is always in a compressed state can be provided between the operating disk 12 and the top plate 2 to achieve temporary pre-tightening of the screw rod 10.

[0033] As one of the specific implementation structures, see Figure 2 and Figure 4 The upper clamping block 5 includes a clamping portion and a slide 13 fixed to the clamping portion. The clamping portion is used to clamp the side edge of the bottom end of the enema bag 3. The specific structure can be similar to that of the lower clamping block 6, or some existing clamping structures or components can be used. In addition, the slide 13 is axially slidably installed in a base 14, which is fixed in the top plate 2. An adjusting screw 15 is threadedly installed on the top of the base 14. The bottom end of this adjusting screw 15 is rotatably connected to the top end of the slide 13, so that when the adjusting screw 15 is rotated, the slide 13 is moved up and down, thereby changing the position height of the upper clamping block 5. Similarly, in order to pre-tighten and fix the adjusting screw 15, an operating plate 17 can be fixed to its top end for rotation, and a pressure-resistant spring 16 that is always in a compressed state is provided between the operating plate 17 and the top of the base 14 to prevent the adjusting screw 15 from easily malfunctioning.

[0034] In this embodiment, Figure 5 As shown, the rollers are rotatably mounted in the bearing seats 21 at their ends, and the elastic telescopic rods include a plug-in rod 30 and a socket rod 28 respectively fixed to the outer walls of the two bearing seats 21. The plug-in rod 30 is axially plugged into the socket rod 28 and connected to the tension spring 29 in the socket rod 28 to form an axial elastic telescopic structure. When the two rollers are respectively located at the front and rear sides of the enema bag 3, the tension spring 29 is always in a stretched state, that is, at this time the tension spring 29 causes the two rollers to clamp the enema bag 3, and then in the process of vertical downward movement, the enema bag 3 is rolled to squeeze the liquid inside and control the flow.

[0035] Continue reading Figure 2 and Figure 5A threaded block 19 is fixed to the end of the core shaft 18 of the first roller 8 of the two rollers. This threaded block 19 is installed in a vertical sliding fit in a rectangular column 31 and is threadedly sleeved with a vertically installed and rotatable screw 20 in the rectangular column 31. The screw 20 is connected to a stepper motor 35 on the top plate 2. The stepper motor 35 can match the corresponding speed according to the setting requirements to control the timing and speed of the vertical movement of the roller. If necessary, a reduction gear set can be set to reduce the transmission. Figure 5 The end of the core shaft 18 of the second roller 34 extends into a sliding cavity 27 in the rectangular column 31 and can move in the sliding cavity 27 along the vertical direction and the front-to-back direction of the rectangular column 31. A contact plate 22 is also fixed to the core shaft 18 of the second roller 34. The contact plate 22 always fits smoothly with the side of the rectangular column 31 and covers the end face of the cavity opening of the sliding cavity 27, thereby improving the stability and reliability of the cooperation with the rectangular column 31. In addition, a moving block 23 is fixed to the end of the core shaft 18 of the second roller 34. The moving block 23 is in sliding contact with the bottom of the sliding cavity 27, thereby optimizing the stability of the movement of the second roller 34, and as shown in FIG. Figure 5-6 The rear side of the moving block 23 is connected to an elastic rod 24 through a first strip 32. The elastic rod 24 is fixed to the side wall of the sliding cavity 27, and the first strip 32 is arranged in the sliding cavity 27 parallel to the lead screw 20. A second strip 25 is provided on the front side of the moving block 23 to contact it. The second strip 25 is squeezed and contacted with the side wall of the sliding cavity 27 by a compression spring 26, so that the two strips are parallel to each other and always maintain contact with the moving block 23. That is, the end of the core shaft 18 of the second roller 34 is actually a floating guide groove specially formed between the two strips through the moving block 23, which can change position when the rollers move vertically. The greatest advantage of this design structure is that it allows the two rollers to move more stably when moving away from or approaching each other. In practice, it is best that the two rollers are in tangential contact with each other when not in operation, that is, they are in direct contact with each other without leaving any gap, so that a sufficiently large extrusion force can be formed on the enema bag 3.

[0036] In the above embodiments, Figure 5-6 As shown, the two ends of each strip are slidably mounted in the two opposite side walls of the sliding cavity 27 so that the two always maintain a parallel posture to each other and do not leave the sliding cavity 27, forming a relatively stable floating guide groove. In the specific manufacturing process, the moving block 23 can be processed into a rectangular block structure, and the cross section of each strip is rectangular. In addition, an adjustment bolt is threadedly mounted on the rear side of the rectangular column 31 (not shown in the figure, the specific structure and installation can be referred to). Figure 3The compression bolt 602 in the middle is screwed into the sliding cavity 27, thereby being rotatably connected to the end of the elastic rod 24, so that when the adjusting bolt is rotated, the elastic rod 24 can move axially, forming different extrusion forces on the first strip 32 and controlling different installation positions of the moving block 23, thereby expanding the scope of use and changing the effect of the roller on the pressure of the enema bag 3. Especially when used for a long time, if the elasticity of the tension spring 29 is weakened, the adjusting bolt can be further screwed in to axially squeeze the elastic rod 24, and then the moving block 23 is approached to the side close to the threaded block 19.

[0037] In the above description of the present invention, it should be noted that the terms "one side," "the other side," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0038] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An enema fixing device, comprising a stand (1) for hanging an enema bag (3) upside down, characterized in that: The top of the tripod (1) is provided with a top plate (2), and a pair of upper clamping blocks (5) are installed below the top plate (2) at intervals, and the upper clamping blocks (5) can clamp the bottom side edges of the enema bag (3); a lower bracket capable of vertical movement is also fixed below one side of the top plate (2), and the lower bracket is provided with a lower clamping block (6), and the lower clamping block (6) can clamp the side edge of the top of the enema bag (3). When the lower bracket moves vertically downward, it cooperates with the upper clamping block (5) to vertically tighten the enema bag (3); The invention also comprises a pair of rollers arranged in parallel and spaced apart, the two rollers being respectively arranged on the front and rear sides of the enema bag (3), and the two ends of the two rollers being connected by an elastic telescopic rod so that the two rollers can move vertically synchronously and always maintain extrusion contact with the enema bag (3) during the movement.

2. The enema fixing device according to claim 1, characterized in that: The lower bracket further comprises a cantilever rod (7), a sliding plate (33) and a slider (9), wherein the sliding plate (33) is fixed to one end of the cantilever rod (7), the slider (9) is fixed to one end of the sliding plate (33), and the lower clamping block (6) is fixed to the other end of the cantilever rod (7), and the lower clamping block (6) comprises a rectangular frame (601) for the top end of the enema bag (3) to be inserted, and a clamping bolt (602) is provided on each side of the rectangular frame (601) at the edge, and the clamping bolt (602) is rotatably connected to a clamping block (603), and the clamping block (603) is located in the rectangular frame (601) and is fixedly connected to the two side edges of the top end of the enema bag (3) by squeezing.

3. The enema fixing device according to claim 2, characterized in that: The slider (9) is installed in a vertical sliding fit in a vertical rod (11), and the sliding plate (33) contacts the side of the vertical rod (11) in a vertical sliding fit. Under the contact action of the sliding plate (33) and the vertical rod (11), the slider (9) maintains a posture perpendicular to the vertical rod (11); the slider (9) is a rectangular block structure, a screw rod (10) is vertically installed in the vertical rod (11), and the slider (9) is installed on the screw rod (10) in a threaded fit. The top end of the screw rod (10) passes through the top plate (2) and is fixed with an operating plate (12) for rotating the screw rod (10). A compression spring that is always in a compressed state is provided between the operating plate (12) and the top plate (2).

4. The enema fixing device according to claim 1, characterized in that: The upper clamping block (5) includes a clamping portion and a slide column (13) fixed to the clamping portion, the clamping portion is used to clamp the side edge of the bottom end of the enema bag (3), the slide column (13) is axially slidably installed in a base (14), the base (14) is fixed in the top plate (2), and an adjusting screw (15) is threadedly installed on the top end of the base (14). The bottom end of the adjusting screw (15) is rotatably connected to the top end of the slide column (13), and an operating plate (17) is fixed to the top end thereof. A pressure-resistant spring (16) that is always in a compressed state is provided between the operating plate (17) and the top of the base (14).

5. The enema fixing device according to claim 1, characterized in that: The rollers are rotatably mounted in the bearing seats (21) at their ends. The elastic telescopic rods include a plug-in rod (30) and a socket rod (28) respectively fixed to the outer walls of the two bearing seats (21). The plug-in rod (30) is axially plugged into the socket rod (28) and connected to a tension spring (29) in the socket rod (28). When the two rollers are respectively located at the front and rear sides of the enema bag (3), the tension spring (29) is always in a stretched state.

6. The enema fixing device according to claim 1, characterized in that: A threaded block (19) is fixed to the end of the core shaft (18) of the first roller (8) of the two rollers. The threaded block (19) is installed in a rectangular column (31) in a vertical sliding manner and is threadedly sleeved with a vertically installed and rotatable lead screw (20) in the rectangular column (31). The lead screw (20) is transmission-connected to a stepping motor (35) on the top plate (2); the end of the core shaft (18) of the second roller (34) extends into a sliding cavity (27) in the rectangular column (31) and can move in the sliding cavity (27) along the vertical direction and front-back direction of the rectangular column (31). A contact disk (22) is also fixed to the core shaft (18) of the second roller (34). The contact disk (22) always smoothly fits the side surface of the rectangular column (31) and covers the cavity opening end surface of the sliding cavity (27).

7. The enema fixing device according to claim 6, characterized in that: A moving block (23) is fixed to the end of the core shaft (18) of the second roller (34), and the moving block (23) is in sliding contact with the bottom of the sliding cavity (27). The rear side of the moving block (23) is in contact with an elastic rod (24) through a first strip (32). The elastic rod (24) is fixed on the side wall of the sliding cavity (27), and the first strip (32) is arranged in the sliding cavity (27) parallel to the lead screw (20). A second strip (25) in contact with the moving block (23) is provided on the front side of the moving block (23). The second strip (25) is squeezed and contacted with the side wall of the sliding cavity (27) through a compression spring (26), so that the two strips are parallel to each other and always keep in contact with the moving block (23).

8. The enema fixing device according to claim 7, characterized in that: In the non-working state, the two rollers are in tangential contact with each other.

9. The enema fixing device according to claim 7, characterized in that: The two ends of the strip are respectively installed in two opposite side walls of the sliding cavity (27) in a sliding manner so that the two always maintain a parallel posture to each other and do not leave the sliding cavity (27).

10. The enema fixing device according to claim 7, characterized in that: The moving block (23) is a rectangular block structure, the cross section of the sticker is rectangular, and an adjusting bolt is threadedly provided on the rear side of the rectangular column (31). The adjusting bolt is screwed into the sliding cavity (27) and is rotatably connected to the end of the elastic rod (24).

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